US20070208302A1 - Deflection control catheters, support catheters and methods of use - Google Patents
Deflection control catheters, support catheters and methods of use Download PDFInfo
- Publication number
- US20070208302A1 US20070208302A1 US11/698,248 US69824807A US2007208302A1 US 20070208302 A1 US20070208302 A1 US 20070208302A1 US 69824807 A US69824807 A US 69824807A US 2007208302 A1 US2007208302 A1 US 2007208302A1
- Authority
- US
- United States
- Prior art keywords
- catheter
- rapid exchange
- segment
- proximal
- guidewire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- DPNZLWXABNCDEY-UHFFFAOYSA-N O=NCCC1(CC2)C2C(CC2)C2CC1 Chemical compound O=NCCC1(CC2)C2C(CC2)C2CC1 DPNZLWXABNCDEY-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0041—Catheters; Hollow probes characterised by the form of the tubing pre-formed, e.g. specially adapted to fit with the anatomy of body channels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/104—Balloon catheters used for angioplasty
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M2025/0183—Rapid exchange or monorail catheters
Definitions
- the invention relates to catheters to facilitate the delivery of guidewires, guide catheters or other interventional devices within a branched vascular network.
- the invention further relates to methods for the delivery of guidewires, guide catheters or other interventional devices along branched vessels in a body.
- Percutaneous vascular procedures are performed in many vessels in the body, including, for example, the coronary arteries, saphenous vein grafts, carotid arteries, cerebral vessels, and peripheral vessels. These procedures generally require the physician to gain access to the target vessel with a guiding catheter or sheath and track a guidewire into the vessel past a lesion or other location for the performance of a treatment procedure.
- One common complication of percutaneous procedures is the inability to gain access to a vessel and thus to properly position the interventional devices past the target position.
- Anatomical variations, such as lesion size and morphology, vessel tortuosity, and vessel take off angle contribute to these complications. Additional factors, such as poor guide support, can further lead to crossing issues. These complications can be compounded when the patient has previously received a stent, when the target lesion is located at a bifurcation, or when the patient has a chronic total occlusion where the vessel is completely or almost completely blocked.
- the invention pertains to a catheter comprising a proximal segment and a rapid exchange segment connected at or near the distal end of the proximal segment.
- the rapid exchange segment comprises a tubular element with a lumen having a slit structure and sufficient rigidity to track over a cylindrical object within the lumen by pushing from the proximal end of the proximal segment.
- the invention pertains to a medical delivery tool for elongated medical devices.
- the tool comprises a flexible rod and a tubular element operably connected to the rod.
- the tubular element has a distal opening, a proximal opening and an open lumen connecting the distal opening and the proximal opening such that the tubular element forms a rapid exchange element to fit over an elongated medical device.
- the tubular element has a side port.
- the invention in another aspect, pertains to a method for the delivery of an elongated medical device into a vessel within a vascular network.
- the method comprises loading a rapid exchange segment of a delivery tool onto the elongated medical device and using the delivery tool to provide support for the placement of the elongated medical device into the vessel.
- the rapid exchange segment generally comprises a slit that provides for the loading of the rapid exchange segment.
- the invention pertains to a method for the delivery of a guidewire into a vessel within a vascular network.
- the method comprises extending a curve tip of the guidewire through a side port of a deflection catheter into the vessel in which the side port is positioned at the opening into the vessel.
- the invention pertains to a catheter comprising a proximal section, and a rapid exchange segment operably connected to the proximal section.
- the rapid exchange segment comprises a tubular element having a guide lumen, a tip, a distal guide port and a side guide port, and the tubular element has a curve in the tip.
- the invention pertains to a guidewire delivery system comprising a guidewire having a curved tip and a deflection catheter comprising a proximal section and a rapid exchange segment operably connected to the proximal section.
- the rapid exchange segment comprising a tubular element comprising a guide lumen, a distal guide port at the distal end of the guide lumen and a proximal guide port.
- FIG. 1 is a fragmentary side view of a medical instrument delivery system with a deflection/support catheter and an elongated medical device.
- FIG. 2 is a fragmentary side view of a medical instrument delivery system with a rapid exchange deflection/support catheter and an elongated medical device.
- FIG. 3 is a fragmentary side view of an embodiment of a rapid exchange deflection and support catheter riding on a guide wire.
- FIG. 4 is an expanded sectional view of the tip of the deflection and support catheter and guidewire of FIG. 4 with the section taken through the center of the catheter and guidewire.
- FIG. 5 is an expanded sectional view of the tip of the deflection catheter as shown in FIG. 4 with the tip of the guidewire extending from a side port of the catheter.
- FIG. 6 is a fragmentary perspective view of an embodiment of a tip of a deflection and support catheter having a radiopaque marker band distal to a side port.
- FIG. 7 is a fragmentary perspective view of an embodiment of a tip of a deflection and support catheter having a non-circumferential radiopaque marker.
- FIG. 8 is a fragmentary side view of an embodiment of a tip of a deflection and support catheter having a radiopaque marker below a side port.
- FIG. 9 is a fragmentary perspective view of a rapid exchange segment of a deflection and support catheter with a wire connecting a distal tubular portion and a proximal tubular portion.
- FIG. 10 is a fragmentary perspective view of a deflection and support catheter having a rapid exchange segment with a slit clipped onto an elongated medical device.
- FIG. 11 is a side view of a deflection and support catheter with a curved tip and a side port along a curved portion.
- FIG. 12 is a side view of an alternative embodiment of a deflection and support catheter with a curved tip and a side port along a curved portion.
- FIG. 13 is a side view of an embodiment of a deflection and support catheter used with two guidewires with hidden structure of the guidewires shown in phantom lines.
- FIG. 14 is a fragmentary perspective side view of a rapid exchange deflection and support catheter having a sharply bent tip.
- FIG. 15 is a fragmentary side view of the catheter of FIG. 14 engaging an elongated medical device.
- FIG. 16 is a fragmentary side view of the catheter of FIG. 14 engaging an elongated medical device with its tip slightly extending from the bent tip of the deflection and support catheter.
- FIG. 17 is a fragmentary side perspective view of a rapid exchange deflection and support catheter riding over a medical device with a highly bent tip.
- FIG. 18 is a fragmentary side perspective view of the catheter of FIG. 17 deflecting the medical device to a straighter orientation for placement into a branch vessel.
- FIG. 19A is a side view of a rapid exchange support catheter.
- FIG. 19B is a side view of a rapid exchange catheter with a spiral slit.
- FIG. 19C is a side view of a rapid exchange catheter with a corkscrew slit.
- FIG. 19D is a side view of a rapid exchange catheter with an overtube.
- FIG. 20A is a sectional view of an embodiment of the slit rapid exchange segment of the catheter of FIG. 19 .
- FIG. 20B is a sectional view of an alternative embodiment of the slit rapid exchange segment of the catheter of FIG. 19 .
- FIG. 21 is a fragmentary schematic view of a deflection catheter riding over a medical device within a blood vessel.
- FIG. 22 is a fragmentary schematic view of the deflection catheter in the blood vessels as shown in FIG. 21 with the medical device extending from a side port of the deflection and support catheter.
- FIG. 23 is a fragmentary schematic view of a deflection and support catheter facilitating deployment of a medical device into a renal artery.
- FIG. 24 is a fragmentary schematic view of a deflection and support catheter facilitating deployment of a medical device into a coronary artery.
- FIG. 25 is a fragmentary schematic view of an elongated treatment structure within a blood vessel proximal to a lesion.
- FIG. 26 is a fragmentary schematic view of the treatment structure of FIG. 25 at he lesion following placement facilitated with a support catheter.
- a deflection and support catheter as described herein provides assistance to direct an elongate member within a blood vessel during a percutaneous procedure into a difficult to reach branch vessel.
- the deflection and support catheter can provide both direction and support for entering into a difficult branch vessel to navigate.
- the deflection and support catheter has a side port at a stiffened section to provide support while the elongate member is directed through the side port into a difficult to reach vessel.
- the curved tip of the elongate member such as a guidewire, facilitates the entry of the elongate member out from the side port into the difficult to reach vessel.
- the physician can manipulate a guidewire past difficult to reach positions in the branch vessel, such as past thrombus accumulated at or near the vessel opening.
- the deflection and support catheter can be removed, and the guidewire can be used to guide treatment structures, such as angioplasty balloons and stents into the branch vessel.
- support and increased manipulation can be provided for the guiding catheter or sheath with a deflection and support catheter that similarly provides support for the distal end of a guide catheter. Interaction between the curve of the guiding catheter and the deflection and support catheter can aid in steering and push.
- the support catheter generally has a rapid exchange segment that can clip over a guide catheter.
- the deflection and support catheter can be configured to ride over the shaft of an interventional device such as a balloon or stent system.
- the deflection and support catheter can provide increased support to the distal segment of the interventional device that extends out the distal end of the guiding catheter or sheath.
- the deflection catheters described herein are generally useful for the placement of guidewires or catheters in difficult to reach vessels within the body of a patient, generally a human, although the device can be used in other mammals. Similarly, the deflection and support catheters are useful to facilitate the deployment of guide catheters. Once the guidewire/guide catheter/interventional device is placed at the desired location, the deflection/support catheter is generally removed. In some embodiments, the treatment structure or medical instrument is placed at or past a lesion, which can be thrombus within in the vessel.
- the deflection and support catheter can have an over the wire or rapid exchange configuration.
- the elongate member extends within only a portion of the catheter.
- the catheter generally has a guide port at its distal tip.
- a rapid exchange guide port is located to define a guide lumen extending from the rapid exchange guide port to the distal port.
- the side port is located at an appropriate position between the rapid exchange port and the distal port.
- the catheter has an overall length to reach the target vessel from an appropriate insertion point into the patient.
- the catheter has an overall length to reach the distal end of the interventional device.
- the proximal portion of the catheter extending in a proximal direction from the rapid exchange port can be solid or tubular while providing a desired degree of strength and flexibility since this section of catheter only provides a mechanical function.
- the proximal portion of the catheter can have a rod structure, a tubular structure or other similar elongated form, with a flat, circular or other appropriate cross section shape.
- the proximal section is used only advance, withdraw and steer the rapid exchange segment within the vessel from a section that is exterior to the patient.
- this proximal segment should be stiff enough to push the rapid exchange segment, and it should transmit torque for steering.
- this proximal segment generally does not need an open lumen or an outer surface suitable for the passage of instruments. Also, it is advantageous for this segment to be of low profile.
- the deflection and support catheter has a side port that is configured to facilitate the guiding of an elongate member, such as a guidewire, out from the side port.
- the side-guide port should be configured to allow for relatively easy passage of a tip, generally a curved, tip of a guidewire to exit the side port.
- the widest diameter across the port opening in some embodiments is at least 1.5 times the size of the guidewire diameter and in other embodiments at least twice the size of the guidewire diameter.
- the side guide port does not have a tubular projection so that there is no extraneous structure to snag while moving the structure within a vessel.
- the side port can be reinforced. In general, there is no projection of a millimeter or greater from the side port relative to the surface of the catheter.
- the deflection and support catheter has curves at its tip for either an over the wire or rapid exchange configuration.
- the curve can assist with placement of the side port adjacent to an opening into a side branch vessel.
- the catheter can have one or more curves along the length. It can be advantageous to have two, three or more curves.
- the section surrounding the side port can be stiffer than proximal and distal segments.
- the section around the port can be stiff relative to other sections of the catheter.
- the stiffness can be provided by coating or embedding a wire or reinforcement at the appropriate section and/or by using a different material welded or otherwise connected to adjacent material.
- the side port section can be constructed with one or more radiopaque bands that aid in visualization and also provide increased stiffness.
- the stiffened section has a stiff measured with a Durometer value of at least about 60 D.
- the deflection and support catheter has a bent tip with appropriate stiffness so that a guidewire or catheter extending outward from the tip can hold the tip straight if extending sufficient from the tip, or the tip can bend if the guidewire/catheter is extending only a short distance from the tip.
- This embodiment provides an alternative to embodiments with a side port.
- the guidewire is directed into the main vessel past the branch point.
- the deflection catheter can be delivered over the guidewire while the guidewire is being delivered or after the guidewire is in place. Then, the deflection catheter is positioned with the side port adjacent the opening into the branch vessel. Placement can be facilitated using radiopaque markers on the deflection catheter or through visualization of radiopaque material forming at least along a portion of the deflection catheter, along with visualization dye in the vessel if desired.
- the guidewire can be retracted so that its tip can exit through the side port.
- the guidewire With the support of the deflection catheter the guidewire generally can be positioned past a lesion at or near the opening of the branch vessel. Similarly, the support of the deflection catheter can be used to reach into sharp bending branch vessels that are otherwise difficult or impossible to reach. Once the guidewire is in place, the deflection catheter can be removed. Thus, the deflection catheter provides for the performance of procedures that would not be otherwise possible.
- the support catheter is used to support another interventional device such as a balloon or stent deploying instrument.
- This embodiment is referred to as a support catheter.
- the support catheter generally has a rapid exchange configuration.
- the tubular element of the support catheter has an inner lumen sufficiently large for the passage of a guide catheter of a selected diameter.
- a proximal section extends proximally from the rapid exchange segment. This proximal section should have enough stiffness to advance and withdraw the support catheter onto and off from the guide catheter.
- the rapid exchange segment has a slit structure that provides for loading and unloading the rapid exchange segment onto and off from the guide catheter or interventional device since the guide catheter or other interventional device generally has handles and other structures attached to its proximal end that makes it difficult or impossible to advance the support catheter over the end of the guide catheter.
- a slit refers broadly to any structure that provide for opening of the generally cylindrical lumen to extend the rapid exchange segment around the guide catheter.
- the slit can have overlapping portions, locking portions or the like, and some representative embodiments are described further below.
- Support catheter can be placed over the guide catheter or other elongated interventional device for placement into a vessel.
- the support catheter can be inserted into the patient if the health care professional is having difficulty placing a guide catheter at a desired location.
- the support catheter can provide additional support at the distal end of the guide catheter to facilitate placement of the guide catheter. Once the guide catheter is in place, the support catheter can be removed.
- the deflection/support catheter has a distal port as well as a side port and/or a proximal rapid exchange port.
- the catheter has a rapid exchange segment with a rapid exchange port with the rapid exchange segment designed to ride over a medical device during a percutaneous procedure.
- the rapid exchange segment can have a slit to provide easier placement over the medical device for loading.
- the deflection and support catheter has a curved tip and/or a curved distal portion.
- a side port if present, can be configured to provide exit of the tip of the elongated medical device directed with the deflection/support catheter.
- the deflection/support catheter can be formed from a radiopaque material and/or can have one or more radiopaque marker bands to facilitate proper positioning in a patient.
- a medical device delivery system comprises an elongated medical device and a deflection and support catheter that is designed to ride over the elongated medical device in an over the wire or rapid exchange configuration.
- medical device delivery system 100 comprises an elongated medical device 102 and a medical delivery tool 104 , e.g., a deflection catheter/support catheter.
- the elongated medical device 102 can be a guidewire, guide catheter, balloon catheter, stent delivery catheter or other percutaneous medical instruments, such as those well known in the art.
- elongated medical device 102 has a bent tip 106 .
- Guidewires as used herein can have a solid structure or an internal structures such as a hollow lumen or a core wire or the like.
- medical delivery tool 104 has an optional side port 108 and an optional handle 110 .
- Medical device delivery system 116 comprises an elongated medical device 118 and medical delivery tool 120 .
- Elongated medical device 118 can be the same medical devices described with respect to elongated medical device 102 .
- Medical delivery tool 120 has a rapid exchange segment 122 and a proximal extension 124 .
- Rapid exchange segment 122 comprises a distal port 126 and a proximal port 128 that provide for an elongated medical device to pass within the rapid exchange segment.
- rapid exchange segment 122 has an optional side port 130 .
- Proximal extension 124 comprises an elongated element 132 and an optional handle 134 .
- Elongated element 132 can comprise a tubular element, a solid rod or other elongated segment.
- a solid, flexible rod or wire is convenient as having a smaller diameter than other structures for selected mechanical properties, and a smaller diameter provides for less blockage of the vessels and passage through smaller guide catheters during use.
- elongated element 132 connects rapid exchange segment 122 within the patient with the exterior of the patient.
- FIG. 3 A particular embodiment of the medical delivery tool as a rapid exchange deflection/support catheter is shown in FIG. 3 .
- Deflection and support catheter 150 can be used to deflect a guidewire 152 into a branch vessel in a patient.
- Catheter 150 comprises rapid exchange segment 154 with side port 156 , rod 158 and handle 160 .
- rapid exchange segment 154 has a radiopaque marker band 162 .
- rapid exchange segment can have a 21 ⁇ 2 French diameter.
- rapid exchange segment 154 can be formed from a polymer tube optionally with braided or wound metal wire embedded within the polymer.
- FIG. 4 An expanded, fragmentary sectional view of rapid exchange segment 154 is shown in FIG. 4 .
- Side port 156 should have a size and shape to facilitate exit of the tip of guidewire 152 out through side port 156 .
- the opening of side port 156 has a length along the longitudinal direction of the segment of at least about twice the diameter of guidewire 152 , and at least a portion of rapid exchange segment has a stiffness corresponding with a durometer value of 60 D to support guidewire 152 as it is pushed through side port 156 possibly into a significantly blocked branch vessel.
- the side port or window has a longitudinal dimension, L, of about 8 mm and a distal extension, D, of about 10 mm, although other dimensions are suitable as desired.
- rapid exchange segment 154 is shown with a single marker band 170 having a cylindrical configuration at the distal end of side port 156 .
- rapid exchange segment 154 has a non-cylindrical marker band 170 that does not extend around the entire circumference of the rapid exchange segment. The non-circumferential marker may make it easier to align side port 156 during use.
- rapid exchange segment 154 has a marker section 174 placed below side port 156 to again facilitate alignment of side port 156 .
- a plurality of marker bands can be used and/or the rapid exchange segment can be formed from a radiopaque material.
- Rapid exchange segment 180 comprises a distal tubular element 182 , a connecting rod or wire 184 and proximal tubular element 186 , which connects to a rod or other elongated proximal element to extend out from the patient.
- Connecting rod 184 connects distal tubular element 182 with proximal tubular element 186 .
- distal tubular element 182 and proximal tubular element 186 ride over the medical device.
- the gap between the proximal tubular element 186 and distal tubular element 182 can function as the side port for deflection of the guidewire or other medical device.
- a plurality of wires can connect distal tubular element 182 and proximal tubular element 186 with the gap between the tubular elements still functioning as a side port.
- deflection and support catheter 190 is shown clipped over guidewire or medical device 192 .
- deflection and support catheter 190 comprises a rapid exchange segment 194 and proximal rod 196 .
- Rapid exchange segment 194 has a slit 198 extending along its length to facilitate clipping onto the guidewire 192 .
- Rapid exchange segment 194 further has a distal port 200 , a proximal port 202 and a side port 204 .
- Slit 198 extends form distal port 200 to proximal port 202 .
- Rapid exchange segment 194 has sufficient flexibility to open and close over guidewire 192 while having sufficient rigidity to remain over the guidewire as deflection catheter 190 is pushing into position.
- Slit 198 can be formed with overlapping sections, sections that meet, locking sections or other appropriate configurations that provide the functional features.
- deflection and support catheter can have curves that deflect the side port away from the axis of the distal and proximal ports.
- Two embodiments with curved rapid exchange segments are shown in FIGS. 11 and 12 .
- deflection and support catheter 210 comprises rapid exchange segment 212 and proximal rod 214 .
- Rapid exchange segment 212 has a distal segment 216 with a distal port 218 , proximal segment 220 with a proximal port 222 , and a curved segment 224 between distal segment 212 and proximal segment 220 .
- Side port 226 is located at the center of curved segment 224 where the curved segment in its natural shape is deflected furthest from the axis connecting distal port 218 with proximal port 222 .
- rapid exchange segment 212 has a first radiopaque marker band 228 near distal port 218 and a second radiopaque marker band 230 near the distal edge of side port 226 .
- the side port comprises a cut out of a portion of the tubular element in which the cut out has a length along the axis of the tubular element from about 1 to about 4 millimeters and a minimum circumference along the port of 1 ⁇ 3 of the average circumference around the tubular element away from the side port.
- deflection and support catheter 240 comprises rapid exchange segment 242 and proximal rod 244 .
- Rapid exchange segment 242 has a distal segment 246 with a distal port 248 , proximal segment 250 with a proximal port 252 , and a curved segment 254 .
- Side port 256 is located the outside proximal edge of curved segment 254 relative to the position of the curved segment in its natural shape that is deflected furthest from the axis connecting distal port 248 with proximal port 252 .
- rapid exchange segment 242 has a first radiopaque marker band 258 near distal port 248 and a second radiopaque marker band 260 near the distal edge of side port 256 .
- deflection catheter 270 is interfaced with first guidewire 272 and second guidewire 274 .
- Guidewires 272 , 274 can be substituted for other appropriate elongated medical devices.
- Deflection and support catheter 270 comprises a proximal extension 276 and rapid exchange segment 278 .
- Rapid exchange segment 278 comprises a distal port 280 , a proximal port 282 and a side port 284 .
- rapid exchange segment 278 has a curve, and side port 284 is located at the maximum deflection of the curve, although other placements of the side port can be used as desired.
- side port 284 is large enough for the passage of both guidewires 272 , 274 .
- First guidewire 272 and deflection and support catheter 270 can be advanced together over second guidewire 274 . Once side port 284 is in position, deflection and support catheter 270 can be held in place while first guidewire 272 is advanced out from side port 284 into a branch vessel. Then, second guidewire 274 and deflection catheter 270 can be removed from the patient with first guidewire 272 at its desired position.
- deflection and support catheter 300 has a proximal extension 302 , such as a proximal rod, and a rapid exchange segment 304 .
- Rapid exchange segment 304 has a proximal port 306 and a bent tip 308 with a distal port 310 .
- bent tip 308 in its unstressed position can have an angle of at least about 35 degrees and in some embodiments at least about 45 degrees relative to the natural direction of the remaining portions of rapid exchange segment 304 .
- guidewire 316 or other elongated medical device is extending through rapid exchange segment 304 and out from distal port 310 .
- a sufficient length of guidewire 316 extends from distal port 310 so that bent tip 308 flexes to a straighter configuration if any forces tend to hold guidewire 316 in a relatively straight position, such as would be the case in a blood vessel.
- bent tip 308 can resume its natural bent configuration with only guidewire tip 318 extending from distal port 310 . If distal port 310 is positioned at a branch vessel, guidewire tip 318 can be advanced into the branch vessel from distal port 310 .
- deflection and support catheter 330 comprises a proximal extension 332 and rapid exchange segment 334 having a distal port 336 and a proximal port 338 .
- rapid exchange segment 334 is straight and lacks a side port, although in alternative embodiments, the rapid exchange segment can have a side port that is not used and may be curved.
- rapid exchange segment 334 is riding over medical device 340 , which can be a guide wire, microcatheter or other elongated medical device.
- medical device 340 has a sharply bent tip portion 342 .
- rapid exchange segment 334 deflects bent tip portion 342 of medical device 340 to a less bent configuration that provides for placement into a branch vessel.
- Support catheter 350 comprises a proximal handle 352 , a connecting rod 354 and rapid exchange segment 356 with the connecting rod 354 connecting handle 352 with rapid exchange segment 356 .
- Handle 352 can be formed form any convenient to grip material that is suitable for sterile medical devices.
- Rapid exchange segment 356 comprises a tubular element 358 with a slit 360 and a gentle curved tip 362 .
- Two suitable, representative cross sections for tubular element 358 with slit 360 are shown in FIGS. 20A and 20B .
- FIG. 20A two blunt edges meet at slit 360 .
- two lips 370 , 372 overlap at slit 360 .
- the edges of the slit can interlock, such as with a keyed configuration, for example, as used with a locking plastic sandwich bag, or the like
- rapid exchange segment 374 has a spiral shaped slit 376 that provides for easy mounting onto a medical device but increased resistance to accidental disengagement.
- the spiral shaped slit can be exaggerated further to form a cork screw rapid exchange segment, as shown in FIG. 19C .
- rapid exchange segment 378 has an exaggerated spiral slit 380 .
- Other configurations of the slit structure can be used to provide appropriate ability to expand slit 360 to place rapid exchange segment over a catheter or other elongated medical device while providing after placement over the medical device sufficient rigidity to advance rapid exchange segment 356 over the medical device without any significant chance of disengaging from the medical device inadvertently. Referring to FIG.
- support catheter 382 has a proximal push section 382 , a rapid exchange section 384 with a slit 386 and an overtube 388 .
- Overtube 388 can be slid off of rapid exchange section 384 for loading and slid over rapid exchange section 384 after loading to restrict disengagement. Friction holds overtube 388 in place after loading.
- connecting rod 354 can have a length of roughly 95 centimeters
- rapid exchange segment 356 can have a length of roughly 15 centimeters. Rapid exchange segment can have an inner diameter to fit over a 4 to 4.5 French catheter and an outer diameter to just fit within a 6 F guide catheter.
- a person of ordinary skill in the art can adjust the dimensions of the device appropriately based on the teachings herein.
- the deflection/support catheter can be formed from one or more biocompatible materials, including, for example, metals, such as stainless steel or alloys, e.g., Nitinol®, or polymers such as polyether-amide block co-polymer (PEBAX®), nylon (polyamides), polyolefins, polytetrafluoroethylene, polyesters, polyurethanes, polycarbonates or other suitable biocompatible polymers.
- metals such as stainless steel or alloys, e.g., Nitinol®
- polymers such as polyether-amide block co-polymer (PEBAX®), nylon (polyamides), polyolefins, polytetrafluoroethylene, polyesters, polyurethanes, polycarbonates or other suitable biocompatible polymers.
- Radiopacity can be achieved with the addition of markers, such as platinum-iridium or platinum-tungsten or through radio-pacifiers, such as barium sulfate, bismuth trioxide, bismuth subcarbonate, powdered tungsten, powdered tantalum or the like, added to a polymer resin.
- markers such as platinum-iridium or platinum-tungsten
- radio-pacifiers such as barium sulfate, bismuth trioxide, bismuth subcarbonate, powdered tungsten, powdered tantalum or the like, added to a polymer resin.
- different sections of deflection/aspiration catheter can be formed from different materials from other sections, and sections of the catheter can comprise a plurality of materials at different locations and/or at a particular location.
- a proximal extended rod/wire can be formed from metal, such as stainless steel.
- one material of particular interest is a themoplastic polymer with embedded metal wire.
- Suitable polymers include, for example, polyamides, i.e., nylons.
- the wire can be braided, coiled or otherwise placed over a polymer tubing liner with some tension. A polymer jacket is then placed over the top. Upon heating over the softening temperature of the polymer and subsequent cooling, the wire becomes embedded within the polymer.
- the liner and jacket can be the same or different materials.
- Suitable wire for embedding in the polymer includes, for example, flat stainless steel wire. The wire adds additional mechanical strength while maintaining appropriate amounts of flexibility.
- the materials generally can be molded, extruded or the like, for example, based on well known processing approaches in the field. Materials can be joined by softening one material and embedding the other material within the softened material, and/or using mechanical reinforcements, clams, brackets or the like. Medical grade materials are generally commercially available for adaptation for forming the structures described herein. Curves can be introduced to polymer material through softening the polymer and hardening the polymer on a curved mandrel or the like.
- the deflection/support catheters can be used in any reasonable vessels in a patient.
- the deflection/support catheters are particularly useful for directing medical instruments in a patient's blood vessels.
- the deflection/support catheters are intended to facilitate procedures so that they are easier and faster than difficult procedures using other instruments.
- the deflection/support catheters are intended to facilitate procedures that otherwise could not be completed since the medical instruments could not be positioned appropriately.
- FIGS. 21 and 22 A general application of a deflection and support catheter is depicted in FIGS. 21 and 22 .
- deflection and support catheter 400 has been deployed in a blood vessel 402 over a guidewire 404 or other catheter or elongated medical instrument and through a guide catheter 406 .
- Deflection and support catheter 400 has a side port 408 and a distal port 410 .
- guidewire 404 is extending from distal port 410
- side port 408 is positioned near the opening of branch vessel 412 .
- guidewire 404 is shown extending through side port 408 and into branch vessel 412 .
- Distal tip 414 of deflection and support catheter 400 extending distal from side port 408 helps to anchor the deflection and support catheter during the procedure.
- guidewire 404 is pulled into distal tip 414 until the tip of guidewire 404 can exit side port 408 .
- the guidewire can be advanced into branch vessel 412 with support from deflection and support catheter 400 . Once the guidewire is within the branch vessel, the deflection and support catheter can be removed.
- a deflection and support catheter 420 is used to deploy a guide catheter 422 into renal artery 424 .
- Deflection and support catheter 420 is shown with a curved rapid exchange segment 426 , a proximal flexible rod 428 , a distal port 430 and a side port 432 .
- the tip of guide catheter 422 is shown exiting side port 432 at the opening into renal artery 424 so that guide catheter 422 can be advanced into renal artery 424 with support form deflection catheter 420 .
- a deflection and support catheter 440 is used to deploy a guide catheter 442 into a coronary artery 444 from aorta 446 .
- Deflection and support catheter 440 is shown with a curved rapid exchange segment 448 , a proximal flexible rod 450 , a distal port 452 , a proximal port 454 and a side port 456 .
- the tip of guide catheter 442 is shown exiting side port 456 at the opening into coronary artery 444 so that guide catheter 442 can be advanced into coronary artery 444 with support form deflection/support catheter 440 .
- FIGS. 25 and 26 The use of a support catheter generally is depicted in FIGS. 25 and 26 .
- a treatment catheter 470 extends out from guide catheter 472 into vessel 474 on guidewire 476 .
- Guidewire 476 extends past lesion 478 , but it is difficult to advance treatment structure 480 on treatment catheter 470 to lesion 478 due to the extent of blockage from lesion 478 and the bending of vessel 474 .
- support catheter 490 has a rapid exchange structure with a slit 492 such that support catheter 490 can be clipped onto treatment catheter 470 .
- Support catheter 490 is advanced through a Tuohy-Borst valve or the like, through the guide catheter to extend from guide catheter 472 into vessel 474 .
- support catheter 490 can be extended up to 10 to 12 centimeters into the vessel, such as a coronary artery, graft or the like. With additional support from support catheter 472 , treatment structure 480 can be advanced to lesion 478 where a balloon angioplasty, stent deployment and/or other treatment can be performed. Once the lesion is crossed, support catheter 490 can be removed.
- Suitable angioplasty balloons are described further, for example in U.S. Pat. No. 6,132,824 to Hamlin, entitled “Multilayer Catheter Balloon,” incorporated herein by reference.
- Stent delivery is described further, for example, in U.S. Pat. No. 6,610,069 to Euteneuer et al., entitled “Catheter Support For Stent Delivery,” incorporated herein by reference.
- Various stents and angioplasty balloons are commercially available.
- the deflection/support catheters can be sterilized and packaged for distribution using, for example, conventional approaches. Radiation and or chemical sterilization can be used.
- the packaged catheters can be distributed for use with other medical devices for percutaneous procedures.
Abstract
Description
- This application claims priority to copending provisional patent application Ser. No. 60/762,304 filed on Jan. 26, 2006 to Webster et al., entitled “Deflection Control Catheter and Related Method of Use,” incorporated herein by reference.
- The invention relates to catheters to facilitate the delivery of guidewires, guide catheters or other interventional devices within a branched vascular network. The invention further relates to methods for the delivery of guidewires, guide catheters or other interventional devices along branched vessels in a body.
- Percutaneous vascular procedures are performed in many vessels in the body, including, for example, the coronary arteries, saphenous vein grafts, carotid arteries, cerebral vessels, and peripheral vessels. These procedures generally require the physician to gain access to the target vessel with a guiding catheter or sheath and track a guidewire into the vessel past a lesion or other location for the performance of a treatment procedure. One common complication of percutaneous procedures is the inability to gain access to a vessel and thus to properly position the interventional devices past the target position. Anatomical variations, such as lesion size and morphology, vessel tortuosity, and vessel take off angle contribute to these complications. Additional factors, such as poor guide support, can further lead to crossing issues. These complications can be compounded when the patient has previously received a stent, when the target lesion is located at a bifurcation, or when the patient has a chronic total occlusion where the vessel is completely or almost completely blocked.
- In a first aspect, the invention pertains to a catheter comprising a proximal segment and a rapid exchange segment connected at or near the distal end of the proximal segment. The rapid exchange segment comprises a tubular element with a lumen having a slit structure and sufficient rigidity to track over a cylindrical object within the lumen by pushing from the proximal end of the proximal segment.
- In a further aspect, the invention pertains to a medical delivery tool for elongated medical devices. The tool comprises a flexible rod and a tubular element operably connected to the rod. The tubular element has a distal opening, a proximal opening and an open lumen connecting the distal opening and the proximal opening such that the tubular element forms a rapid exchange element to fit over an elongated medical device. In some embodiments, the tubular element has a side port.
- In another aspect, the invention pertains to a method for the delivery of an elongated medical device into a vessel within a vascular network. The method comprises loading a rapid exchange segment of a delivery tool onto the elongated medical device and using the delivery tool to provide support for the placement of the elongated medical device into the vessel. The rapid exchange segment generally comprises a slit that provides for the loading of the rapid exchange segment.
- In other aspects, the invention pertains to a method for the delivery of a guidewire into a vessel within a vascular network. The method comprises extending a curve tip of the guidewire through a side port of a deflection catheter into the vessel in which the side port is positioned at the opening into the vessel.
- Moreover, the invention pertains to a catheter comprising a proximal section, and a rapid exchange segment operably connected to the proximal section. The rapid exchange segment comprises a tubular element having a guide lumen, a tip, a distal guide port and a side guide port, and the tubular element has a curve in the tip.
- Furthermore, the invention pertains to a guidewire delivery system comprising a guidewire having a curved tip and a deflection catheter comprising a proximal section and a rapid exchange segment operably connected to the proximal section. The rapid exchange segment comprising a tubular element comprising a guide lumen, a distal guide port at the distal end of the guide lumen and a proximal guide port.
-
FIG. 1 is a fragmentary side view of a medical instrument delivery system with a deflection/support catheter and an elongated medical device. -
FIG. 2 is a fragmentary side view of a medical instrument delivery system with a rapid exchange deflection/support catheter and an elongated medical device. -
FIG. 3 is a fragmentary side view of an embodiment of a rapid exchange deflection and support catheter riding on a guide wire. -
FIG. 4 is an expanded sectional view of the tip of the deflection and support catheter and guidewire ofFIG. 4 with the section taken through the center of the catheter and guidewire. -
FIG. 5 is an expanded sectional view of the tip of the deflection catheter as shown inFIG. 4 with the tip of the guidewire extending from a side port of the catheter. -
FIG. 6 is a fragmentary perspective view of an embodiment of a tip of a deflection and support catheter having a radiopaque marker band distal to a side port. -
FIG. 7 is a fragmentary perspective view of an embodiment of a tip of a deflection and support catheter having a non-circumferential radiopaque marker. -
FIG. 8 is a fragmentary side view of an embodiment of a tip of a deflection and support catheter having a radiopaque marker below a side port. -
FIG. 9 is a fragmentary perspective view of a rapid exchange segment of a deflection and support catheter with a wire connecting a distal tubular portion and a proximal tubular portion. -
FIG. 10 is a fragmentary perspective view of a deflection and support catheter having a rapid exchange segment with a slit clipped onto an elongated medical device. -
FIG. 11 is a side view of a deflection and support catheter with a curved tip and a side port along a curved portion. -
FIG. 12 is a side view of an alternative embodiment of a deflection and support catheter with a curved tip and a side port along a curved portion. -
FIG. 13 is a side view of an embodiment of a deflection and support catheter used with two guidewires with hidden structure of the guidewires shown in phantom lines. -
FIG. 14 is a fragmentary perspective side view of a rapid exchange deflection and support catheter having a sharply bent tip. -
FIG. 15 is a fragmentary side view of the catheter ofFIG. 14 engaging an elongated medical device. -
FIG. 16 is a fragmentary side view of the catheter ofFIG. 14 engaging an elongated medical device with its tip slightly extending from the bent tip of the deflection and support catheter. -
FIG. 17 is a fragmentary side perspective view of a rapid exchange deflection and support catheter riding over a medical device with a highly bent tip. -
FIG. 18 is a fragmentary side perspective view of the catheter ofFIG. 17 deflecting the medical device to a straighter orientation for placement into a branch vessel. -
FIG. 19A is a side view of a rapid exchange support catheter. -
FIG. 19B is a side view of a rapid exchange catheter with a spiral slit. -
FIG. 19C is a side view of a rapid exchange catheter with a corkscrew slit. -
FIG. 19D is a side view of a rapid exchange catheter with an overtube. -
FIG. 20A is a sectional view of an embodiment of the slit rapid exchange segment of the catheter ofFIG. 19 . -
FIG. 20B is a sectional view of an alternative embodiment of the slit rapid exchange segment of the catheter ofFIG. 19 . -
FIG. 21 is a fragmentary schematic view of a deflection catheter riding over a medical device within a blood vessel. -
FIG. 22 is a fragmentary schematic view of the deflection catheter in the blood vessels as shown inFIG. 21 with the medical device extending from a side port of the deflection and support catheter. -
FIG. 23 is a fragmentary schematic view of a deflection and support catheter facilitating deployment of a medical device into a renal artery. -
FIG. 24 is a fragmentary schematic view of a deflection and support catheter facilitating deployment of a medical device into a coronary artery. -
FIG. 25 is a fragmentary schematic view of an elongated treatment structure within a blood vessel proximal to a lesion. -
FIG. 26 is a fragmentary schematic view of the treatment structure ofFIG. 25 at he lesion following placement facilitated with a support catheter. - A deflection and support catheter as described herein provides assistance to direct an elongate member within a blood vessel during a percutaneous procedure into a difficult to reach branch vessel. The deflection and support catheter can provide both direction and support for entering into a difficult branch vessel to navigate. In some embodiments, the deflection and support catheter has a side port at a stiffened section to provide support while the elongate member is directed through the side port into a difficult to reach vessel. In appropriate embodiments, once the side port is properly positioned, the curved tip of the elongate member, such as a guidewire, facilitates the entry of the elongate member out from the side port into the difficult to reach vessel. With the support from a deflection and support catheter, the physician can manipulate a guidewire past difficult to reach positions in the branch vessel, such as past thrombus accumulated at or near the vessel opening. Once the guidewire is in position, the deflection and support catheter can be removed, and the guidewire can be used to guide treatment structures, such as angioplasty balloons and stents into the branch vessel. In other embodiments, support and increased manipulation can be provided for the guiding catheter or sheath with a deflection and support catheter that similarly provides support for the distal end of a guide catheter. Interaction between the curve of the guiding catheter and the deflection and support catheter can aid in steering and push. In this embodiment, the support catheter generally has a rapid exchange segment that can clip over a guide catheter. In a further embodiment, the deflection and support catheter can be configured to ride over the shaft of an interventional device such as a balloon or stent system. The deflection and support catheter can provide increased support to the distal segment of the interventional device that extends out the distal end of the guiding catheter or sheath.
- The deflection catheters described herein are generally useful for the placement of guidewires or catheters in difficult to reach vessels within the body of a patient, generally a human, although the device can be used in other mammals. Similarly, the deflection and support catheters are useful to facilitate the deployment of guide catheters. Once the guidewire/guide catheter/interventional device is placed at the desired location, the deflection/support catheter is generally removed. In some embodiments, the treatment structure or medical instrument is placed at or past a lesion, which can be thrombus within in the vessel.
- The deflection and support catheter can have an over the wire or rapid exchange configuration. In a rapid exchange configuration, the elongate member extends within only a portion of the catheter. The catheter generally has a guide port at its distal tip. For rapid exchange embodiments, a rapid exchange guide port is located to define a guide lumen extending from the rapid exchange guide port to the distal port. The side port is located at an appropriate position between the rapid exchange port and the distal port. For embodiments that support and deflect other interventional devices down difficult vasculature, the catheter has an overall length to reach the target vessel from an appropriate insertion point into the patient. For embodiments that support and deflect other interventional devices, the catheter has an overall length to reach the distal end of the interventional device.
- In the rapid exchange configuration, the proximal portion of the catheter extending in a proximal direction from the rapid exchange port can be solid or tubular while providing a desired degree of strength and flexibility since this section of catheter only provides a mechanical function. In particular, the proximal portion of the catheter can have a rod structure, a tubular structure or other similar elongated form, with a flat, circular or other appropriate cross section shape. The proximal section is used only advance, withdraw and steer the rapid exchange segment within the vessel from a section that is exterior to the patient. Thus, this proximal segment should be stiff enough to push the rapid exchange segment, and it should transmit torque for steering. However, this proximal segment generally does not need an open lumen or an outer surface suitable for the passage of instruments. Also, it is advantageous for this segment to be of low profile.
- In some embodiments, the deflection and support catheter has a side port that is configured to facilitate the guiding of an elongate member, such as a guidewire, out from the side port. The side-guide port should be configured to allow for relatively easy passage of a tip, generally a curved, tip of a guidewire to exit the side port. For some embodiments, the widest diameter across the port opening in some embodiments is at least 1.5 times the size of the guidewire diameter and in other embodiments at least twice the size of the guidewire diameter. The guide catheter can then support the movement of the guidewire into a branch vessel even past an occlusion while not making the task of the health care provider excessively difficult. Generally, the side guide port does not have a tubular projection so that there is no extraneous structure to snag while moving the structure within a vessel. However, the side port can be reinforced. In general, there is no projection of a millimeter or greater from the side port relative to the surface of the catheter.
- In some embodiments, the deflection and support catheter has curves at its tip for either an over the wire or rapid exchange configuration. The curve can assist with placement of the side port adjacent to an opening into a side branch vessel. The catheter can have one or more curves along the length. It can be advantageous to have two, three or more curves.
- To provide additional support and to reduce or eliminate kinking, it can be desirous to have a stiffened section at or near the side port. Thus, the section surrounding the side port can be stiffer than proximal and distal segments. Alternatively or additionally, the section around the port can be stiff relative to other sections of the catheter. The stiffness can be provided by coating or embedding a wire or reinforcement at the appropriate section and/or by using a different material welded or otherwise connected to adjacent material. Furthermore, the side port section can be constructed with one or more radiopaque bands that aid in visualization and also provide increased stiffness. In some embodiments, the stiffened section has a stiff measured with a Durometer value of at least about 60 D.
- In alternative embodiments, the deflection and support catheter has a bent tip with appropriate stiffness so that a guidewire or catheter extending outward from the tip can hold the tip straight if extending sufficient from the tip, or the tip can bend if the guidewire/catheter is extending only a short distance from the tip. This embodiment provides an alternative to embodiments with a side port.
- To use the deflection and support catheter for delivery of a guidewire into a branch vessel, the guidewire is directed into the main vessel past the branch point. The deflection catheter can be delivered over the guidewire while the guidewire is being delivered or after the guidewire is in place. Then, the deflection catheter is positioned with the side port adjacent the opening into the branch vessel. Placement can be facilitated using radiopaque markers on the deflection catheter or through visualization of radiopaque material forming at least along a portion of the deflection catheter, along with visualization dye in the vessel if desired. Once the deflection catheter is in place, the guidewire can be retracted so that its tip can exit through the side port. With the support of the deflection catheter the guidewire generally can be positioned past a lesion at or near the opening of the branch vessel. Similarly, the support of the deflection catheter can be used to reach into sharp bending branch vessels that are otherwise difficult or impossible to reach. Once the guidewire is in place, the deflection catheter can be removed. Thus, the deflection catheter provides for the performance of procedures that would not be otherwise possible.
- In an alternative embodiment, the support catheter is used to support another interventional device such as a balloon or stent deploying instrument. This embodiment is referred to as a support catheter. The support catheter generally has a rapid exchange configuration. The tubular element of the support catheter has an inner lumen sufficiently large for the passage of a guide catheter of a selected diameter. A proximal section extends proximally from the rapid exchange segment. This proximal section should have enough stiffness to advance and withdraw the support catheter onto and off from the guide catheter. The rapid exchange segment has a slit structure that provides for loading and unloading the rapid exchange segment onto and off from the guide catheter or interventional device since the guide catheter or other interventional device generally has handles and other structures attached to its proximal end that makes it difficult or impossible to advance the support catheter over the end of the guide catheter. A slit refers broadly to any structure that provide for opening of the generally cylindrical lumen to extend the rapid exchange segment around the guide catheter. For example, the slit can have overlapping portions, locking portions or the like, and some representative embodiments are described further below.
- Support catheter can be placed over the guide catheter or other elongated interventional device for placement into a vessel. The support catheter can be inserted into the patient if the health care professional is having difficulty placing a guide catheter at a desired location. The support catheter can provide additional support at the distal end of the guide catheter to facilitate placement of the guide catheter. Once the guide catheter is in place, the support catheter can be removed.
- The advantages of the deflection catheter and support catheter can be further elucidated from the specific embodiments described in the following.
- Deflection/Support Catheter Structure
- The deflection/support catheter has a distal port as well as a side port and/or a proximal rapid exchange port. In embodiments of particular interest, the catheter has a rapid exchange segment with a rapid exchange port with the rapid exchange segment designed to ride over a medical device during a percutaneous procedure. In some embodiments, the rapid exchange segment can have a slit to provide easier placement over the medical device for loading. In additional or alternative embodiments, the deflection and support catheter has a curved tip and/or a curved distal portion. A side port, if present, can be configured to provide exit of the tip of the elongated medical device directed with the deflection/support catheter. The deflection/support catheter can be formed from a radiopaque material and/or can have one or more radiopaque marker bands to facilitate proper positioning in a patient.
- A medical device delivery system comprises an elongated medical device and a deflection and support catheter that is designed to ride over the elongated medical device in an over the wire or rapid exchange configuration. Referring to
FIG. 1 , medicaldevice delivery system 100 comprises an elongatedmedical device 102 and amedical delivery tool 104, e.g., a deflection catheter/support catheter. The elongatedmedical device 102 can be a guidewire, guide catheter, balloon catheter, stent delivery catheter or other percutaneous medical instruments, such as those well known in the art. A shown in FIG. 1, elongatedmedical device 102 has abent tip 106. Guidewires as used herein can have a solid structure or an internal structures such as a hollow lumen or a core wire or the like. As shown inFIG. 1 ,medical delivery tool 104 has anoptional side port 108 and anoptional handle 110. - Percutaneous tools with rapid exchange, or monorail, segments can be desirable due to their ease of loading. Referring to
FIG. 2 , Medicaldevice delivery system 116 comprises an elongatedmedical device 118 andmedical delivery tool 120. Elongatedmedical device 118 can be the same medical devices described with respect to elongatedmedical device 102.Medical delivery tool 120 has arapid exchange segment 122 and aproximal extension 124.Rapid exchange segment 122 comprises adistal port 126 and aproximal port 128 that provide for an elongated medical device to pass within the rapid exchange segment. As shown inFIG. 2 ,rapid exchange segment 122 has anoptional side port 130.Proximal extension 124 comprises anelongated element 132 and anoptional handle 134.Elongated element 132 can comprise a tubular element, a solid rod or other elongated segment. A solid, flexible rod or wire is convenient as having a smaller diameter than other structures for selected mechanical properties, and a smaller diameter provides for less blockage of the vessels and passage through smaller guide catheters during use. During use elongatedelement 132 connectsrapid exchange segment 122 within the patient with the exterior of the patient. - A particular embodiment of the medical delivery tool as a rapid exchange deflection/support catheter is shown in
FIG. 3 . Deflection andsupport catheter 150 can be used to deflect aguidewire 152 into a branch vessel in a patient.Catheter 150 comprisesrapid exchange segment 154 withside port 156,rod 158 and handle 160. In this embodiment,rapid exchange segment 154 has aradiopaque marker band 162. For conventional guidewires, rapid exchange segment can have a 2½ French diameter. As described further below,rapid exchange segment 154 can be formed from a polymer tube optionally with braided or wound metal wire embedded within the polymer. - An expanded, fragmentary sectional view of
rapid exchange segment 154 is shown inFIG. 4 .Side port 156 should have a size and shape to facilitate exit of the tip ofguidewire 152 out throughside port 156. Thus, in some embodiments, the opening ofside port 156 has a length along the longitudinal direction of the segment of at least about twice the diameter ofguidewire 152, and at least a portion of rapid exchange segment has a stiffness corresponding with a durometer value of 60 D to supportguidewire 152 as it is pushed throughside port 156 possibly into a significantly blocked branch vessel. As shown in the particular embodiment ofFIG. 4 , the side port or window has a longitudinal dimension, L, of about 8 mm and a distal extension, D, of about 10 mm, although other dimensions are suitable as desired. - Referring to
FIG. 6 ,rapid exchange segment 154 is shown with asingle marker band 170 having a cylindrical configuration at the distal end ofside port 156. Referring toFIG. 6 ,rapid exchange segment 154 has anon-cylindrical marker band 170 that does not extend around the entire circumference of the rapid exchange segment. The non-circumferential marker may make it easier to alignside port 156 during use. Referring toFIG. 8 ,rapid exchange segment 154 has amarker section 174 placed belowside port 156 to again facilitate alignment ofside port 156. In alternative embodiments, a plurality of marker bands can be used and/or the rapid exchange segment can be formed from a radiopaque material. - An alternative embodiment of a rapid exchange segment for a deflection and support catheter is shown in
FIG. 9 .Rapid exchange segment 180 comprises a distaltubular element 182, a connecting rod or wire 184 and proximaltubular element 186, which connects to a rod or other elongated proximal element to extend out from the patient. Connecting rod 184 connects distaltubular element 182 with proximaltubular element 186. During placement of the deflection and support catheter, distaltubular element 182 and proximaltubular element 186 ride over the medical device. The gap between the proximaltubular element 186 and distaltubular element 182 can function as the side port for deflection of the guidewire or other medical device. In alternative embodiments, a plurality of wires can connect distaltubular element 182 and proximaltubular element 186 with the gap between the tubular elements still functioning as a side port. - Referring to
FIG. 10 , deflection andsupport catheter 190 is shown clipped over guidewire ormedical device 192. In this embodiment, deflection andsupport catheter 190 comprises arapid exchange segment 194 andproximal rod 196.Rapid exchange segment 194 has aslit 198 extending along its length to facilitate clipping onto theguidewire 192.Rapid exchange segment 194 further has adistal port 200, a proximal port 202 and aside port 204.Slit 198 extends formdistal port 200 to proximal port 202.Rapid exchange segment 194 has sufficient flexibility to open and close overguidewire 192 while having sufficient rigidity to remain over the guidewire asdeflection catheter 190 is pushing into position.Slit 198 can be formed with overlapping sections, sections that meet, locking sections or other appropriate configurations that provide the functional features. - The deflection and support catheter can have curves that deflect the side port away from the axis of the distal and proximal ports. Two embodiments with curved rapid exchange segments are shown in
FIGS. 11 and 12 . Referring toFIG. 11 , deflection andsupport catheter 210 comprisesrapid exchange segment 212 andproximal rod 214.Rapid exchange segment 212 has adistal segment 216 with adistal port 218,proximal segment 220 with aproximal port 222, and acurved segment 224 betweendistal segment 212 andproximal segment 220.Side port 226 is located at the center ofcurved segment 224 where the curved segment in its natural shape is deflected furthest from the axis connectingdistal port 218 withproximal port 222. In this embodiment,rapid exchange segment 212 has a firstradiopaque marker band 228 neardistal port 218 and a secondradiopaque marker band 230 near the distal edge ofside port 226. In some embodiments, the side port comprises a cut out of a portion of the tubular element in which the cut out has a length along the axis of the tubular element from about 1 to about 4 millimeters and a minimum circumference along the port of ⅓ of the average circumference around the tubular element away from the side port. - Referring to
FIG. 12 , deflection andsupport catheter 240 comprisesrapid exchange segment 242 andproximal rod 244.Rapid exchange segment 242 has adistal segment 246 with adistal port 248,proximal segment 250 with aproximal port 252, and acurved segment 254.Side port 256 is located the outside proximal edge ofcurved segment 254 relative to the position of the curved segment in its natural shape that is deflected furthest from the axis connectingdistal port 248 withproximal port 252. In this embodiment,rapid exchange segment 242 has a firstradiopaque marker band 258 neardistal port 248 and a secondradiopaque marker band 260 near the distal edge ofside port 256. - A two wire embodiment is depicted in
FIG. 13 . Referring toFIG. 13 ,deflection catheter 270 is interfaced withfirst guidewire 272 andsecond guidewire 274.Guidewires support catheter 270 comprises aproximal extension 276 andrapid exchange segment 278.Rapid exchange segment 278 comprises adistal port 280, aproximal port 282 and aside port 284. In this embodiment,rapid exchange segment 278 has a curve, andside port 284 is located at the maximum deflection of the curve, although other placements of the side port can be used as desired. Generally,side port 284 is large enough for the passage of bothguidewires First guidewire 272 and deflection andsupport catheter 270 can be advanced together oversecond guidewire 274. Onceside port 284 is in position, deflection andsupport catheter 270 can be held in place whilefirst guidewire 272 is advanced out fromside port 284 into a branch vessel. Then,second guidewire 274 anddeflection catheter 270 can be removed from the patient withfirst guidewire 272 at its desired position. - A deflection and support catheter with a distal bent tip is shown in
FIG. 14 . Referring toFIG. 14 , deflection andsupport catheter 300 has aproximal extension 302, such as a proximal rod, and arapid exchange segment 304.Rapid exchange segment 304 has aproximal port 306 and abent tip 308 with adistal port 310. In some embodiments,bent tip 308 in its unstressed position can have an angle of at least about 35 degrees and in some embodiments at least about 45 degrees relative to the natural direction of the remaining portions ofrapid exchange segment 304. Referring toFIG. 15 , guidewire 316 or other elongated medical device is extending throughrapid exchange segment 304 and out fromdistal port 310. A sufficient length ofguidewire 316 extends fromdistal port 310 so thatbent tip 308 flexes to a straighter configuration if any forces tend to holdguidewire 316 in a relatively straight position, such as would be the case in a blood vessel. Referring toFIG. 16 , asguidewire 316 is moved in a proximal direction relative todeflection catheter 300,bent tip 308 can resume its natural bent configuration withonly guidewire tip 318 extending fromdistal port 310. Ifdistal port 310 is positioned at a branch vessel,guidewire tip 318 can be advanced into the branch vessel fromdistal port 310. - Another embodiment of a deflection and support catheter is shown in
FIGS. 17 and 18 in which a side port is not used to deflect the medical device. Referring toFIG. 17 , deflection andsupport catheter 330 comprises aproximal extension 332 andrapid exchange segment 334 having adistal port 336 and aproximal port 338. As shown inFIGS. 17 and 18 ,rapid exchange segment 334 is straight and lacks a side port, although in alternative embodiments, the rapid exchange segment can have a side port that is not used and may be curved. Referring toFIG. 17 ,rapid exchange segment 334 is riding overmedical device 340, which can be a guide wire, microcatheter or other elongated medical device. For deployment,medical device 340 has a sharplybent tip portion 342. As shown inFIG. 18 , as deflection andsupport catheter 330 is advanced near the distal end ofmedical device 340,rapid exchange segment 334 deflectsbent tip portion 342 ofmedical device 340 to a less bent configuration that provides for placement into a branch vessel. - An embodiment of a support catheter is shown in
FIG. 19A .Support catheter 350 comprises aproximal handle 352, a connectingrod 354 andrapid exchange segment 356 with the connectingrod 354 connectinghandle 352 withrapid exchange segment 356. Handle 352 can be formed form any convenient to grip material that is suitable for sterile medical devices.Rapid exchange segment 356 comprises atubular element 358 with aslit 360 and a gentlecurved tip 362. Two suitable, representative cross sections fortubular element 358 withslit 360 are shown inFIGS. 20A and 20B . As shown inFIG. 20A , two blunt edges meet atslit 360. As shown inFIG. 20B , twolips slit 360. Also, the edges of the slit can interlock, such as with a keyed configuration, for example, as used with a locking plastic sandwich bag, or the like - Referring to
FIG. 19B ,rapid exchange segment 374 has a spiral shaped slit 376 that provides for easy mounting onto a medical device but increased resistance to accidental disengagement. The spiral shaped slit can be exaggerated further to form a cork screw rapid exchange segment, as shown inFIG. 19C . As shown inFIG. 19C ,rapid exchange segment 378 has anexaggerated spiral slit 380. Other configurations of the slit structure can be used to provide appropriate ability to expand slit 360 to place rapid exchange segment over a catheter or other elongated medical device while providing after placement over the medical device sufficient rigidity to advancerapid exchange segment 356 over the medical device without any significant chance of disengaging from the medical device inadvertently. Referring toFIG. 19D ,support catheter 382 has aproximal push section 382, arapid exchange section 384 with aslit 386 and anovertube 388.Overtube 388 can be slid off ofrapid exchange section 384 for loading and slid overrapid exchange section 384 after loading to restrict disengagement. Friction holds overtube 388 in place after loading. - In one specific embodiment for use in coronary arteries, connecting
rod 354 can have a length of roughly 95 centimeters, andrapid exchange segment 356 can have a length of roughly 15 centimeters. Rapid exchange segment can have an inner diameter to fit over a 4 to 4.5 French catheter and an outer diameter to just fit within a 6 F guide catheter. For other applications, a person of ordinary skill in the art can adjust the dimensions of the device appropriately based on the teachings herein. - In general, the deflection/support catheter can be formed from one or more biocompatible materials, including, for example, metals, such as stainless steel or alloys, e.g., Nitinol®, or polymers such as polyether-amide block co-polymer (PEBAX®), nylon (polyamides), polyolefins, polytetrafluoroethylene, polyesters, polyurethanes, polycarbonates or other suitable biocompatible polymers. Radiopacity can be achieved with the addition of markers, such as platinum-iridium or platinum-tungsten or through radio-pacifiers, such as barium sulfate, bismuth trioxide, bismuth subcarbonate, powdered tungsten, powdered tantalum or the like, added to a polymer resin. Generally, different sections of deflection/aspiration catheter can be formed from different materials from other sections, and sections of the catheter can comprise a plurality of materials at different locations and/or at a particular location. For example, a proximal extended rod/wire can be formed from metal, such as stainless steel. With respect to a rapid exchange segment, one material of particular interest is a themoplastic polymer with embedded metal wire. Suitable polymers include, for example, polyamides, i.e., nylons. The wire can be braided, coiled or otherwise placed over a polymer tubing liner with some tension. A polymer jacket is then placed over the top. Upon heating over the softening temperature of the polymer and subsequent cooling, the wire becomes embedded within the polymer. The liner and jacket can be the same or different materials. Suitable wire for embedding in the polymer includes, for example, flat stainless steel wire. The wire adds additional mechanical strength while maintaining appropriate amounts of flexibility.
- The materials generally can be molded, extruded or the like, for example, based on well known processing approaches in the field. Materials can be joined by softening one material and embedding the other material within the softened material, and/or using mechanical reinforcements, clams, brackets or the like. Medical grade materials are generally commercially available for adaptation for forming the structures described herein. Curves can be introduced to polymer material through softening the polymer and hardening the polymer on a curved mandrel or the like.
- Use of the Devices
- In general, the deflection/support catheters can be used in any reasonable vessels in a patient. However, the deflection/support catheters are particularly useful for directing medical instruments in a patient's blood vessels. In general, the deflection/support catheters are intended to facilitate procedures so that they are easier and faster than difficult procedures using other instruments. Furthermore, the deflection/support catheters are intended to facilitate procedures that otherwise could not be completed since the medical instruments could not be positioned appropriately.
- A general application of a deflection and support catheter is depicted in
FIGS. 21 and 22 . As shown inFIG. 21 , deflection andsupport catheter 400 has been deployed in ablood vessel 402 over aguidewire 404 or other catheter or elongated medical instrument and through aguide catheter 406. Deflection andsupport catheter 400 has aside port 408 and adistal port 410. As shown inFIG. 21 , guidewire 404 is extending fromdistal port 410, andside port 408 is positioned near the opening ofbranch vessel 412. - Referring to
FIG. 22 , guidewire 404 is shown extending throughside port 408 and intobranch vessel 412.Distal tip 414 of deflection andsupport catheter 400 extending distal fromside port 408 helps to anchor the deflection and support catheter during the procedure. During the transition from the configuration shown inFIG. 21 to the configuration shown inFIG. 22 , guidewire 404 is pulled intodistal tip 414 until the tip ofguidewire 404 can exitside port 408. Onceguidewire 404 has exitedside port 408, the guidewire can be advanced intobranch vessel 412 with support from deflection andsupport catheter 400. Once the guidewire is within the branch vessel, the deflection and support catheter can be removed. - Referring to
FIG. 23 , a deflection andsupport catheter 420 is used to deploy aguide catheter 422 intorenal artery 424. Deflection andsupport catheter 420 is shown with a curvedrapid exchange segment 426, a proximalflexible rod 428, adistal port 430 and aside port 432. A shown inFIG. 23 , the tip ofguide catheter 422 is shown exitingside port 432 at the opening intorenal artery 424 so thatguide catheter 422 can be advanced intorenal artery 424 with supportform deflection catheter 420. - Referring to
FIG. 24 , a deflection andsupport catheter 440 is used to deploy aguide catheter 442 into acoronary artery 444 fromaorta 446. Deflection andsupport catheter 440 is shown with a curvedrapid exchange segment 448, a proximalflexible rod 450, adistal port 452, aproximal port 454 and aside port 456. A shown inFIG. 24 , the tip ofguide catheter 442 is shown exitingside port 456 at the opening intocoronary artery 444 so thatguide catheter 442 can be advanced intocoronary artery 444 with support form deflection/support catheter 440. - The use of a support catheter generally is depicted in
FIGS. 25 and 26 . Referring toFIG. 25 , atreatment catheter 470 extends out fromguide catheter 472 intovessel 474 onguidewire 476.Guidewire 476 extendspast lesion 478, but it is difficult to advancetreatment structure 480 ontreatment catheter 470 tolesion 478 due to the extent of blockage fromlesion 478 and the bending ofvessel 474. Referring toFIG. 26 ,support catheter 490 has a rapid exchange structure with aslit 492 such thatsupport catheter 490 can be clipped ontotreatment catheter 470.Support catheter 490 is advanced through a Tuohy-Borst valve or the like, through the guide catheter to extend fromguide catheter 472 intovessel 474. In some embodiments,support catheter 490 can be extended up to 10 to 12 centimeters into the vessel, such as a coronary artery, graft or the like. With additional support fromsupport catheter 472,treatment structure 480 can be advanced tolesion 478 where a balloon angioplasty, stent deployment and/or other treatment can be performed. Once the lesion is crossed,support catheter 490 can be removed. Suitable angioplasty balloons are described further, for example in U.S. Pat. No. 6,132,824 to Hamlin, entitled “Multilayer Catheter Balloon,” incorporated herein by reference. Stent delivery is described further, for example, in U.S. Pat. No. 6,610,069 to Euteneuer et al., entitled “Catheter Support For Stent Delivery,” incorporated herein by reference. Various stents and angioplasty balloons are commercially available. - Based on a rough estimate, 10 to 20 percent of procedures have significant difficulty reaching or crossing a lesion with a treatment structure due to proximal vessel tortuosity, calcification and/or the like. The approaches described herein using a support catheter are more generally applicable and are expected to have a greater degree of success relative to approaches based on exchanging devices for a smaller balloon, changing the guide catheter, using a buddy guidewire or the like.
- The deflection/support catheters can be sterilized and packaged for distribution using, for example, conventional approaches. Radiation and or chemical sterilization can be used. The packaged catheters can be distributed for use with other medical devices for percutaneous procedures.
- The embodiments above are intended to be illustrative and not limiting. Additional embodiments are within the claims. In addition, although the present invention has been described with reference to particular embodiments, those skilled in the art will recognize that changes can be made in form and detail without departing from the spirit and scope of the invention. Any incorporation by reference of documents above is limited such that no subject matter is incorporated that is contrary to the explicit disclosure herein.
Claims (24)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/698,248 US20070208302A1 (en) | 2006-01-26 | 2007-01-25 | Deflection control catheters, support catheters and methods of use |
JP2008552430A JP2009524490A (en) | 2006-01-26 | 2007-01-26 | Deflection adjustment catheter and support catheter and method of use |
EP07762875A EP1993654A4 (en) | 2006-01-26 | 2007-01-26 | Deflection control catheters, support catheters and methods of use |
PCT/US2007/002149 WO2007089570A2 (en) | 2006-01-26 | 2007-01-26 | Deflection control catheters, support catheters and methods of use |
US12/651,526 US20100106237A1 (en) | 2006-01-26 | 2010-01-04 | Deflection control catheters, support catheters and methods of use |
US14/254,952 US10173029B2 (en) | 2006-01-26 | 2014-04-17 | Deflection control catheters, support catheters and methods of use |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76230406P | 2006-01-26 | 2006-01-26 | |
US11/698,248 US20070208302A1 (en) | 2006-01-26 | 2007-01-25 | Deflection control catheters, support catheters and methods of use |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/651,526 Division US20100106237A1 (en) | 2006-01-26 | 2010-01-04 | Deflection control catheters, support catheters and methods of use |
US14/254,952 Continuation US10173029B2 (en) | 2006-01-26 | 2014-04-17 | Deflection control catheters, support catheters and methods of use |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070208302A1 true US20070208302A1 (en) | 2007-09-06 |
Family
ID=38327896
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/698,248 Abandoned US20070208302A1 (en) | 2006-01-26 | 2007-01-25 | Deflection control catheters, support catheters and methods of use |
US12/651,526 Abandoned US20100106237A1 (en) | 2006-01-26 | 2010-01-04 | Deflection control catheters, support catheters and methods of use |
US14/254,952 Active 2028-09-04 US10173029B2 (en) | 2006-01-26 | 2014-04-17 | Deflection control catheters, support catheters and methods of use |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/651,526 Abandoned US20100106237A1 (en) | 2006-01-26 | 2010-01-04 | Deflection control catheters, support catheters and methods of use |
US14/254,952 Active 2028-09-04 US10173029B2 (en) | 2006-01-26 | 2014-04-17 | Deflection control catheters, support catheters and methods of use |
Country Status (4)
Country | Link |
---|---|
US (3) | US20070208302A1 (en) |
EP (1) | EP1993654A4 (en) |
JP (1) | JP2009524490A (en) |
WO (1) | WO2007089570A2 (en) |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090326575A1 (en) * | 2008-06-23 | 2009-12-31 | Galdonik Jason A | Embolic protection during percutaneous heart valve replacement and similar procedures |
US20100094257A1 (en) * | 2008-10-10 | 2010-04-15 | Stalker Kent C B | Inventory sparing catheter system |
US20120330401A1 (en) * | 2010-03-30 | 2012-12-27 | Terumo Kabushiki Kaisha | Stent delivery system |
US20130197476A1 (en) * | 2012-01-26 | 2013-08-01 | Cook Medical Technologies Llc | Catheter for Positioning a Wire Guide |
US20140228808A1 (en) * | 2006-01-26 | 2014-08-14 | Otira Medical | Deflection Control Catheters, Support Catheters and Methods of Use |
US20150182362A1 (en) * | 2012-05-18 | 2015-07-02 | Biu Biomedical Innovations (Urology) Inc. | Modified pusher apparatus |
US20150306328A1 (en) * | 2014-04-25 | 2015-10-29 | Irving Mizus | Spiral slit endotracheal tube |
US20160121079A1 (en) * | 2014-10-29 | 2016-05-05 | Edwards Lifesciences Corporation | Bi-directional cannula |
US20170028170A1 (en) * | 2015-07-28 | 2017-02-02 | Andrew Ho, M.D., Inc. | Guide catheter extension device and methods of use for cardiology procedures |
US9566144B2 (en) | 2015-04-22 | 2017-02-14 | Claret Medical, Inc. | Vascular filters, deflectors, and methods |
US9636205B2 (en) | 2009-01-16 | 2017-05-02 | Claret Medical, Inc. | Intravascular blood filters and methods of use |
US20170281915A1 (en) * | 2016-03-31 | 2017-10-05 | Covidien Lp | Medical catheter system |
US9795470B2 (en) | 2012-01-17 | 2017-10-24 | Lumen Biomedical, Inc. | Aortic arch filtration system for carotid artery protection |
US9943395B2 (en) | 2010-12-30 | 2018-04-17 | Claret Medical, Inc. | Deflectable intravascular filter |
US10130458B2 (en) | 2009-07-27 | 2018-11-20 | Claret Medical, Inc. | Dual endovascular filter and methods of use |
US10213582B2 (en) | 2013-12-23 | 2019-02-26 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10327790B2 (en) | 2011-08-05 | 2019-06-25 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10426497B2 (en) | 2015-07-24 | 2019-10-01 | Route 92 Medical, Inc. | Anchoring delivery system and methods |
US10456555B2 (en) | 2015-02-04 | 2019-10-29 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US10537708B2 (en) * | 2012-08-17 | 2020-01-21 | Cochlear Limited | Cochlear implant electrode assembly insertion tool |
US10737067B2 (en) | 2013-08-01 | 2020-08-11 | Terumo Kabushiki Kaisha | Guiding catheter for renal artery and method for using the same |
US10743977B2 (en) | 2009-01-16 | 2020-08-18 | Boston Scientific Scimed, Inc. | Intravascular blood filter |
US10779855B2 (en) | 2011-08-05 | 2020-09-22 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10799669B2 (en) | 2017-01-20 | 2020-10-13 | Route 92 Medical, Inc. | Single operator intracranial medical device delivery systems and methods of use |
US20210100986A1 (en) * | 2016-05-18 | 2021-04-08 | Daniel Ezra Walzman | Vessel access catheter |
US11020133B2 (en) | 2017-01-10 | 2021-06-01 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11065019B1 (en) | 2015-02-04 | 2021-07-20 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11147699B2 (en) | 2015-07-24 | 2021-10-19 | Route 92 Medical, Inc. | Methods of intracerebral implant delivery |
US11154390B2 (en) | 2017-12-19 | 2021-10-26 | Claret Medical, Inc. | Systems for protection of the cerebral vasculature during a cardiac procedure |
US11191630B2 (en) | 2017-10-27 | 2021-12-07 | Claret Medical, Inc. | Systems and methods for protecting the cerebral vasculature |
US11229770B2 (en) | 2018-05-17 | 2022-01-25 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
CN114025821A (en) * | 2019-06-24 | 2022-02-08 | 祥丰医疗私人有限公司 | Multi-lumen catheter |
US11284986B2 (en) | 2009-01-16 | 2022-03-29 | Claret Medical, Inc. | Intravascular blood filters and methods of use |
US11337790B2 (en) | 2017-02-22 | 2022-05-24 | Boston Scientific Scimed, Inc. | Systems and methods for protecting the cerebral vasculature |
US11351023B2 (en) | 2018-08-21 | 2022-06-07 | Claret Medical, Inc. | Systems and methods for protecting the cerebral vasculature |
US11400255B1 (en) | 2018-11-15 | 2022-08-02 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11439491B2 (en) | 2018-04-26 | 2022-09-13 | Claret Medical, Inc. | Systems and methods for protecting the cerebral vasculature |
US11464940B2 (en) * | 2018-05-31 | 2022-10-11 | Alex Sotolongo | System and method for bi-directional fluid injection |
US11607301B2 (en) | 2009-01-16 | 2023-03-21 | Boston Scientific Scimed, Inc. | Intravascular blood filters and methods of use |
EP4181999A4 (en) * | 2021-02-15 | 2024-03-06 | Teleflex Life Sciences Ltd | Support catheters and associated loading components |
EP4356948A1 (en) * | 2022-10-17 | 2024-04-24 | Imds R&D Bv | A rapid exchange guide catheter for guiding a guidewire through coronary arteries |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8652162B2 (en) | 2008-12-18 | 2014-02-18 | Invatec S.P.A. | Catheter, catheter assembly and relevant method |
US8945171B2 (en) * | 2011-09-29 | 2015-02-03 | Covidien Lp | Delivery system for implantable devices |
US10213187B1 (en) | 2012-01-25 | 2019-02-26 | Mubin I. Syed | Method and apparatus for percutaneous superficial temporal artery access for carotid artery stenting |
US9233015B2 (en) | 2012-06-15 | 2016-01-12 | Trivascular, Inc. | Endovascular delivery system with an improved radiopaque marker scheme |
WO2014081947A1 (en) | 2012-11-21 | 2014-05-30 | Syed Mubin I | System for the intravascular placement of a medical device |
US20140277485A1 (en) * | 2013-03-14 | 2014-09-18 | Ranier Limited | Intervertebral fusion implant cage |
EP3096830A4 (en) * | 2014-01-20 | 2018-02-14 | Baylis Medical Company Inc. | Collapsible tip re-entry catheter |
US9636244B2 (en) | 2015-04-09 | 2017-05-02 | Mubin I. Syed | Apparatus and method for proximal to distal stent deployment |
CA2974544C (en) | 2015-05-26 | 2018-02-27 | Vascular Solutions, Inc. | Guidewire fixation |
US9980838B2 (en) * | 2015-10-30 | 2018-05-29 | Ram Medical Innovations Llc | Apparatus and method for a bifurcated catheter for use in hostile aortic arches |
US10492936B2 (en) | 2015-10-30 | 2019-12-03 | Ram Medical Innovations, Llc | Apparatus and method for improved access of procedural catheter in tortuous vessels |
US10327929B2 (en) | 2015-10-30 | 2019-06-25 | Ram Medical Innovations, Llc | Apparatus and method for stabilization of procedural catheter in tortuous vessels |
US10779976B2 (en) | 2015-10-30 | 2020-09-22 | Ram Medical Innovations, Llc | Apparatus and method for stabilization of procedural catheter in tortuous vessels |
US11020256B2 (en) | 2015-10-30 | 2021-06-01 | Ram Medical Innovations, Inc. | Bifurcated “Y” anchor support for coronary interventions |
CN113350655B (en) | 2016-02-24 | 2024-03-19 | 禾木(中国)生物工程有限公司 | Nerve vascular catheter with enhanced flexibility |
US10173031B2 (en) | 2016-06-20 | 2019-01-08 | Mubin I. Syed | Interchangeable flush/selective catheter |
US10751514B2 (en) | 2016-12-09 | 2020-08-25 | Teleflex Life Sciences Limited | Guide extension catheter |
CN110381855B (en) | 2017-01-06 | 2023-07-04 | 因赛普特有限责任公司 | Antithrombotic coating for aneurysm treatment devices |
US11007075B2 (en) | 2018-02-18 | 2021-05-18 | Ram Medical Innovations, Inc. | Vascular access devices and methods for lower limb interventions |
JP2021522885A (en) | 2018-05-01 | 2021-09-02 | インセプト・リミテッド・ライアビリティ・カンパニーIncept,Llc | Devices and methods for removing obstructive substances from intravascular sites |
US11395665B2 (en) | 2018-05-01 | 2022-07-26 | Incept, Llc | Devices and methods for removing obstructive material, from an intravascular site |
US11517335B2 (en) | 2018-07-06 | 2022-12-06 | Incept, Llc | Sealed neurovascular extendable catheter |
US11471582B2 (en) | 2018-07-06 | 2022-10-18 | Incept, Llc | Vacuum transfer tool for extendable catheter |
WO2020112293A1 (en) | 2018-11-27 | 2020-06-04 | Teleflex Life Sciences Limited | Guide extension catheter |
WO2020131227A1 (en) | 2018-12-19 | 2020-06-25 | Teleflex Life Sciences Limited | Guide extension catheter |
JP2022518108A (en) | 2019-01-07 | 2022-03-14 | テレフレックス ライフ サイエンシズ リミテッド | Guide extension catheter |
WO2020171878A1 (en) | 2019-02-19 | 2020-08-27 | Teleflex Life Sciences Limited | Guide extension catheter |
US11766539B2 (en) | 2019-03-29 | 2023-09-26 | Incept, Llc | Enhanced flexibility neurovascular catheter |
EP3969094A1 (en) * | 2019-05-13 | 2022-03-23 | Medtronic Vascular, Inc. | Extended introducer for left radial access |
US11134859B2 (en) | 2019-10-15 | 2021-10-05 | Imperative Care, Inc. | Systems and methods for multivariate stroke detection |
US11553935B2 (en) | 2019-12-18 | 2023-01-17 | Imperative Care, Inc. | Sterile field clot capture module for use in thrombectomy system |
CA3162704A1 (en) | 2019-12-18 | 2021-06-24 | Imperative Care, Inc. | Methods and systems for treating venous thromboembolic disease |
US11439799B2 (en) | 2019-12-18 | 2022-09-13 | Imperative Care, Inc. | Split dilator aspiration system |
EP4117762A1 (en) | 2020-03-10 | 2023-01-18 | Imperative Care, Inc. | Enhanced flexibility neurovascular catheter |
US11207497B1 (en) | 2020-08-11 | 2021-12-28 | Imperative Care, Inc. | Catheter with enhanced tensile strength |
US11697003B2 (en) | 2020-11-30 | 2023-07-11 | TICI 3 Therapeutics, Inc. | Vasculature navigation systems and methods |
US11090466B1 (en) | 2020-11-30 | 2021-08-17 | TICI 3 Therapeutics, Inc. | Catheter systems and devices for acute ischemic stroke thrombectomy |
CN114246674A (en) * | 2022-01-24 | 2022-03-29 | 微亚医疗科技(苏州)有限公司 | Delivery assistance device for vascular interventional surgical robot and slave end part |
Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1747407A (en) * | 1928-07-20 | 1930-02-18 | Reinhold H Wappler | Catheterizing instrument |
US4771782A (en) * | 1986-11-14 | 1988-09-20 | Millar Instruments, Inc. | Method and assembly for introducing multiple catheters into a biological vessel |
US5263932A (en) * | 1992-04-09 | 1993-11-23 | Jang G David | Bailout catheter for fixed wire angioplasty |
US5626600A (en) * | 1987-01-06 | 1997-05-06 | Advanced Cardiovascular Systems, Inc. | Reinforced balloon dilatation catheter with slitted exchange sleeve and method |
US5738667A (en) * | 1992-03-30 | 1998-04-14 | Cordis Corporation | Rapid exchange catheter system |
US5876373A (en) * | 1997-04-04 | 1999-03-02 | Eclipse Surgical Technologies, Inc. | Steerable catheter |
US5944712A (en) * | 1992-03-02 | 1999-08-31 | Medtronic Ave, Inc. | Catheter size designation system |
US5947925A (en) * | 1996-03-18 | 1999-09-07 | Hiroaki Ashiya | Catheter assembly |
US6036682A (en) * | 1997-12-02 | 2000-03-14 | Scimed Life Systems, Inc. | Catheter having a plurality of integral radiopaque bands |
US6096073A (en) * | 1997-02-25 | 2000-08-01 | Scimed Life Systems, Inc. | Method of deploying a stent at a lesion site located at a bifurcation in a parent vessel |
US6132824A (en) * | 1989-09-25 | 2000-10-17 | Schneider (Usa) Inc. | Multilayer catheter balloon |
US6217527B1 (en) * | 1998-09-30 | 2001-04-17 | Lumend, Inc. | Methods and apparatus for crossing vascular occlusions |
US6231563B1 (en) * | 1996-01-25 | 2001-05-15 | Baxter International Inc. | Directional catheter |
US20020082595A1 (en) * | 1998-03-02 | 2002-06-27 | Langberg Jonathan J. | Tissue ablation system and method for forming long linear lesion |
US20030100849A1 (en) * | 1991-05-24 | 2003-05-29 | Jang G. David | Multi-mode vascular catheter system |
US6596020B2 (en) * | 1996-11-04 | 2003-07-22 | Advanced Stent Technologies, Inc. | Method of delivering a stent with a side opening |
US6610069B2 (en) * | 1996-08-23 | 2003-08-26 | Scimed Life Systems, Inc. | Catheter support for stent delivery |
US6682536B2 (en) * | 2000-03-22 | 2004-01-27 | Advanced Stent Technologies, Inc. | Guidewire introducer sheath |
US6692483B2 (en) * | 1996-11-04 | 2004-02-17 | Advanced Stent Technologies, Inc. | Catheter with attached flexible side sheath |
US6869417B1 (en) * | 2000-03-10 | 2005-03-22 | Kensey Nash Corporation | Tool for facilitating the connecting of a catheter or other tubular member onto a guide-wire without access to the ends of the guide-wire |
US20050148950A1 (en) * | 1996-09-13 | 2005-07-07 | Scimed Life Systems, Inc. | Multi-size convertible catheter |
US20060142703A1 (en) * | 2004-12-07 | 2006-06-29 | Cook Incorporated | Catheter aperture with related structures and method |
US20060210605A1 (en) * | 2004-04-21 | 2006-09-21 | Acclarent, Inc. | Devices, systems and methods useable for treating sinusitis |
US20060282041A1 (en) * | 2005-04-20 | 2006-12-14 | Melsheimer Jeffry S | Insert for coupling sheaths used in medical devices |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2926572C2 (en) * | 1979-06-30 | 1982-04-15 | B. Braun Melsungen Ag, 3508 Melsungen | Divisible short catheter made of plastic |
US4694838A (en) * | 1984-01-30 | 1987-09-22 | Mallinckrodt, Inc. | Loop coronary catheter |
DE3884020T2 (en) * | 1987-02-27 | 1994-03-03 | Bard Inc C R | Catheter and guide wire replacement system. |
US4769005A (en) * | 1987-08-06 | 1988-09-06 | Robert Ginsburg | Selective catheter guide |
CA1330285C (en) * | 1987-12-22 | 1994-06-21 | Geoffrey S. Martin | Triple lumen catheter |
US5088991A (en) * | 1988-07-14 | 1992-02-18 | Novoste Corporation | Fuseless soft tip angiographic catheter |
DE8900077U1 (en) | 1989-01-04 | 1990-05-17 | Baker, Susan, London, Gb | |
US5336178A (en) * | 1992-11-02 | 1994-08-09 | Localmed, Inc. | Intravascular catheter with infusion array |
US5403291A (en) * | 1993-08-02 | 1995-04-04 | Quinton Instrument Company | Catheter with elongated side holes |
US5817072A (en) * | 1994-02-18 | 1998-10-06 | Merit Medical Systems, Inc. | Central venous system catheter apparatus with means for subcutaneous delivery of anesthetic agent of other fluid medicament |
US5772639A (en) * | 1994-02-18 | 1998-06-30 | Merit Medical Systems, Inc. | Total alimentary nutrition catheter apparatus with means for subcutaneous delivery of anesthetic agent or other fluid medicament |
US5827229A (en) * | 1995-05-24 | 1998-10-27 | Boston Scientific Corporation Northwest Technology Center, Inc. | Percutaneous aspiration thrombectomy catheter system |
US6027461A (en) * | 1995-10-11 | 2000-02-22 | Micro Therapeutics, Inc. | Infusion guidewire having fixed core wire and flexible radiopaque marker |
WO1998036709A1 (en) | 1997-02-25 | 1998-08-27 | Scimed Life Systems, Inc. | Stents and stent delivery and dilatation system for bifurcation lesions |
US6309339B1 (en) * | 1997-03-28 | 2001-10-30 | Endosonics Corporation | Intravascular radiation delivery device |
WO1999034749A1 (en) | 1998-01-08 | 1999-07-15 | Mark Wilson Ian Webster | Self-expanding bifurcation stent and delivery system |
US6095990A (en) * | 1998-08-31 | 2000-08-01 | Parodi; Juan Carlos | Guiding device and method for inserting and advancing catheters and guidewires into a vessel of a patient in endovascular treatments |
US6179828B1 (en) * | 1999-03-19 | 2001-01-30 | Merit Medical Systems, Inc. | Infusion system with fixed occluding wire |
US6517518B2 (en) * | 2000-03-10 | 2003-02-11 | Kensey Nash Corporation | Tool for facilitating the connecting of a catheter or other tubular member onto a guide-wire without access to the ends of the guide-wire |
US7208003B2 (en) * | 2002-09-20 | 2007-04-24 | Cordis Neurovascular, Inc. | Reattachable introducer for a medical device deployment system |
US20040220612A1 (en) * | 2003-04-30 | 2004-11-04 | Swainston Kyle W | Slidable capture catheter |
US8636714B2 (en) * | 2003-09-22 | 2014-01-28 | Boston Scientific Scimed, Inc. | Microcatheter with sleeved guidewire port |
US7527606B2 (en) * | 2004-05-27 | 2009-05-05 | Abbott Laboratories | Catheter having main body portion with coil-defined guidewire passage |
US7625353B2 (en) * | 2004-05-27 | 2009-12-01 | Abbott Laboratories | Catheter having first and second guidewire tubes and overlapping stiffening members |
US7938820B2 (en) * | 2005-08-18 | 2011-05-10 | Lumen Biomedical, Inc. | Thrombectomy catheter |
US20070208302A1 (en) * | 2006-01-26 | 2007-09-06 | Webster Mark W | Deflection control catheters, support catheters and methods of use |
-
2007
- 2007-01-25 US US11/698,248 patent/US20070208302A1/en not_active Abandoned
- 2007-01-26 JP JP2008552430A patent/JP2009524490A/en active Pending
- 2007-01-26 EP EP07762875A patent/EP1993654A4/en not_active Withdrawn
- 2007-01-26 WO PCT/US2007/002149 patent/WO2007089570A2/en active Application Filing
-
2010
- 2010-01-04 US US12/651,526 patent/US20100106237A1/en not_active Abandoned
-
2014
- 2014-04-17 US US14/254,952 patent/US10173029B2/en active Active
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1747407A (en) * | 1928-07-20 | 1930-02-18 | Reinhold H Wappler | Catheterizing instrument |
US4771782A (en) * | 1986-11-14 | 1988-09-20 | Millar Instruments, Inc. | Method and assembly for introducing multiple catheters into a biological vessel |
US5626600A (en) * | 1987-01-06 | 1997-05-06 | Advanced Cardiovascular Systems, Inc. | Reinforced balloon dilatation catheter with slitted exchange sleeve and method |
US6132824A (en) * | 1989-09-25 | 2000-10-17 | Schneider (Usa) Inc. | Multilayer catheter balloon |
US20030100849A1 (en) * | 1991-05-24 | 2003-05-29 | Jang G. David | Multi-mode vascular catheter system |
US5944712A (en) * | 1992-03-02 | 1999-08-31 | Medtronic Ave, Inc. | Catheter size designation system |
US5738667A (en) * | 1992-03-30 | 1998-04-14 | Cordis Corporation | Rapid exchange catheter system |
US5263932A (en) * | 1992-04-09 | 1993-11-23 | Jang G David | Bailout catheter for fixed wire angioplasty |
US6231563B1 (en) * | 1996-01-25 | 2001-05-15 | Baxter International Inc. | Directional catheter |
US5947925A (en) * | 1996-03-18 | 1999-09-07 | Hiroaki Ashiya | Catheter assembly |
US6610069B2 (en) * | 1996-08-23 | 2003-08-26 | Scimed Life Systems, Inc. | Catheter support for stent delivery |
US20050148950A1 (en) * | 1996-09-13 | 2005-07-07 | Scimed Life Systems, Inc. | Multi-size convertible catheter |
US6596020B2 (en) * | 1996-11-04 | 2003-07-22 | Advanced Stent Technologies, Inc. | Method of delivering a stent with a side opening |
US6692483B2 (en) * | 1996-11-04 | 2004-02-17 | Advanced Stent Technologies, Inc. | Catheter with attached flexible side sheath |
US6096073A (en) * | 1997-02-25 | 2000-08-01 | Scimed Life Systems, Inc. | Method of deploying a stent at a lesion site located at a bifurcation in a parent vessel |
US5876373A (en) * | 1997-04-04 | 1999-03-02 | Eclipse Surgical Technologies, Inc. | Steerable catheter |
US6036682A (en) * | 1997-12-02 | 2000-03-14 | Scimed Life Systems, Inc. | Catheter having a plurality of integral radiopaque bands |
US20020082595A1 (en) * | 1998-03-02 | 2002-06-27 | Langberg Jonathan J. | Tissue ablation system and method for forming long linear lesion |
US6217527B1 (en) * | 1998-09-30 | 2001-04-17 | Lumend, Inc. | Methods and apparatus for crossing vascular occlusions |
US6869417B1 (en) * | 2000-03-10 | 2005-03-22 | Kensey Nash Corporation | Tool for facilitating the connecting of a catheter or other tubular member onto a guide-wire without access to the ends of the guide-wire |
US6682536B2 (en) * | 2000-03-22 | 2004-01-27 | Advanced Stent Technologies, Inc. | Guidewire introducer sheath |
US20060210605A1 (en) * | 2004-04-21 | 2006-09-21 | Acclarent, Inc. | Devices, systems and methods useable for treating sinusitis |
US20060142703A1 (en) * | 2004-12-07 | 2006-06-29 | Cook Incorporated | Catheter aperture with related structures and method |
US20060282041A1 (en) * | 2005-04-20 | 2006-12-14 | Melsheimer Jeffry S | Insert for coupling sheaths used in medical devices |
Cited By (95)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140228808A1 (en) * | 2006-01-26 | 2014-08-14 | Otira Medical | Deflection Control Catheters, Support Catheters and Methods of Use |
US10173029B2 (en) * | 2006-01-26 | 2019-01-08 | Otira Medical | Deflection control catheters, support catheters and methods of use |
US10881496B2 (en) | 2008-06-23 | 2021-01-05 | Lumen Biomedical, Inc. | Embolic protection during percutaneous heart valve replacement and similar procedures |
US9943396B2 (en) | 2008-06-23 | 2018-04-17 | Lumen Biomedical, Inc. | Embolic protection during percutaneous heart valve replacement and similar procedures |
US20090326575A1 (en) * | 2008-06-23 | 2009-12-31 | Galdonik Jason A | Embolic protection during percutaneous heart valve replacement and similar procedures |
EP2974695A1 (en) | 2008-06-23 | 2016-01-20 | Lumen Biomedical, Inc. | Embolic protection during percutaneous heart valve replacement and similar procedures |
US8206412B2 (en) | 2008-06-23 | 2012-06-26 | Lumen Biomedical, Inc. | Embolic protection during percutaneous heart valve replacement and similar procedures |
US9186237B2 (en) | 2008-06-23 | 2015-11-17 | Lumen Biomedical, Inc. | Embolic protection during percutaneous heart valve replacement and similar procedures |
US8382788B2 (en) | 2008-06-23 | 2013-02-26 | Lumen Biomedical, Inc. | Embolic protection during percutaneous heart valve replacement and similar procedures |
US8444625B2 (en) * | 2008-10-10 | 2013-05-21 | Nexeon Medsystems, Inc. | Inventory sparing catheter systems and methods |
US20100286658A1 (en) * | 2008-10-10 | 2010-11-11 | Nexeon Medsystems, Inc. | Inventory sparing catheter systems and methods |
US20100094257A1 (en) * | 2008-10-10 | 2010-04-15 | Stalker Kent C B | Inventory sparing catheter system |
US20180243533A1 (en) * | 2008-10-10 | 2018-08-30 | Kent C.B. Stalker | Inventory sparing catheter system |
WO2010042882A3 (en) * | 2008-10-10 | 2010-06-10 | Nexeon Medsystems, Inc. | Inventory sparing catheter system |
US20100222766A1 (en) * | 2008-10-10 | 2010-09-02 | Nexeon Medsystems, Inc. | Inventory sparing catheter systems and methods |
JP2012505053A (en) * | 2008-10-10 | 2012-03-01 | ネクセオン・メッドシステムズ・インコーポレーテッド | Catheter system without equipment |
US11376399B2 (en) * | 2008-10-10 | 2022-07-05 | Biosensors International Group, Ltd. | Inventory sparing catheter system |
US10743977B2 (en) | 2009-01-16 | 2020-08-18 | Boston Scientific Scimed, Inc. | Intravascular blood filter |
US11364106B2 (en) | 2009-01-16 | 2022-06-21 | Boston Scientific Scimed, Inc. | Intravascular blood filter |
US11284986B2 (en) | 2009-01-16 | 2022-03-29 | Claret Medical, Inc. | Intravascular blood filters and methods of use |
US9636205B2 (en) | 2009-01-16 | 2017-05-02 | Claret Medical, Inc. | Intravascular blood filters and methods of use |
US11607301B2 (en) | 2009-01-16 | 2023-03-21 | Boston Scientific Scimed, Inc. | Intravascular blood filters and methods of use |
US11191631B2 (en) | 2009-07-27 | 2021-12-07 | Boston Scientific Scimed, Inc. | Dual endovascular filter and methods of use |
US10130458B2 (en) | 2009-07-27 | 2018-11-20 | Claret Medical, Inc. | Dual endovascular filter and methods of use |
US20120330401A1 (en) * | 2010-03-30 | 2012-12-27 | Terumo Kabushiki Kaisha | Stent delivery system |
US9943395B2 (en) | 2010-12-30 | 2018-04-17 | Claret Medical, Inc. | Deflectable intravascular filter |
US11141258B2 (en) | 2010-12-30 | 2021-10-12 | Claret Medical, Inc. | Method of isolating the cerebral circulation during a cardiac procedure |
US10058411B2 (en) | 2010-12-30 | 2018-08-28 | Claret Madical, Inc. | Method of isolating the cerebral circulation during a cardiac procedure |
US10722251B2 (en) | 2011-08-05 | 2020-07-28 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US11871944B2 (en) | 2011-08-05 | 2024-01-16 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10743893B2 (en) | 2011-08-05 | 2020-08-18 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10646239B2 (en) | 2011-08-05 | 2020-05-12 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10779855B2 (en) | 2011-08-05 | 2020-09-22 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10327790B2 (en) | 2011-08-05 | 2019-06-25 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US9795470B2 (en) | 2012-01-17 | 2017-10-24 | Lumen Biomedical, Inc. | Aortic arch filtration system for carotid artery protection |
US10682217B2 (en) | 2012-01-17 | 2020-06-16 | Lumen Biomedical, Inc. | Aortic arch filtration catheter for carotid artery protection and methods of use |
US20130197476A1 (en) * | 2012-01-26 | 2013-08-01 | Cook Medical Technologies Llc | Catheter for Positioning a Wire Guide |
US9468743B2 (en) * | 2012-01-26 | 2016-10-18 | Cook Medical Technologies Llc | Catheter for positioning a wire guide |
US9700444B2 (en) * | 2012-05-18 | 2017-07-11 | Biu Biomedical Innovations (Urology) Inc. | Modified pusher apparatus |
US10576255B2 (en) | 2012-05-18 | 2020-03-03 | Biu Biomedical Innovations (Urology) Inc. | Modified pusher apparatus |
US20150182362A1 (en) * | 2012-05-18 | 2015-07-02 | Biu Biomedical Innovations (Urology) Inc. | Modified pusher apparatus |
US10537708B2 (en) * | 2012-08-17 | 2020-01-21 | Cochlear Limited | Cochlear implant electrode assembly insertion tool |
US11872087B2 (en) | 2012-08-17 | 2024-01-16 | Cochlear Limited | Cochlear implant electrode assembly insertion tool |
US10737067B2 (en) | 2013-08-01 | 2020-08-11 | Terumo Kabushiki Kaisha | Guiding catheter for renal artery and method for using the same |
US11534575B2 (en) | 2013-12-23 | 2022-12-27 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10471233B2 (en) | 2013-12-23 | 2019-11-12 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10569049B2 (en) | 2013-12-23 | 2020-02-25 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10213582B2 (en) | 2013-12-23 | 2019-02-26 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US11318282B2 (en) | 2013-12-23 | 2022-05-03 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US10864351B2 (en) | 2013-12-23 | 2020-12-15 | Route 92 Medical, Inc. | Methods and systems for treatment of acute ischemic stroke |
US20150306328A1 (en) * | 2014-04-25 | 2015-10-29 | Irving Mizus | Spiral slit endotracheal tube |
US9597472B2 (en) * | 2014-04-25 | 2017-03-21 | Irving Mizus | Spiral slit endotracheal tube |
US20160121079A1 (en) * | 2014-10-29 | 2016-05-05 | Edwards Lifesciences Corporation | Bi-directional cannula |
US9981119B2 (en) * | 2014-10-29 | 2018-05-29 | Edwards Lifesciences Corporation | Bi-directional cannula |
US11576691B2 (en) | 2015-02-04 | 2023-02-14 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11383064B2 (en) | 2015-02-04 | 2022-07-12 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11065019B1 (en) | 2015-02-04 | 2021-07-20 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US10485952B2 (en) | 2015-02-04 | 2019-11-26 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11806032B2 (en) | 2015-02-04 | 2023-11-07 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11793972B2 (en) | 2015-02-04 | 2023-10-24 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11185664B2 (en) | 2015-02-04 | 2021-11-30 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11793529B2 (en) | 2015-02-04 | 2023-10-24 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11633571B2 (en) | 2015-02-04 | 2023-04-25 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11633570B2 (en) | 2015-02-04 | 2023-04-25 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11224450B2 (en) | 2015-02-04 | 2022-01-18 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11224721B2 (en) | 2015-02-04 | 2022-01-18 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US10456555B2 (en) | 2015-02-04 | 2019-10-29 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11395903B2 (en) | 2015-02-04 | 2022-07-26 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US11305094B2 (en) | 2015-02-04 | 2022-04-19 | Route 92 Medical, Inc. | Rapid aspiration thrombectomy system and method |
US9566144B2 (en) | 2015-04-22 | 2017-02-14 | Claret Medical, Inc. | Vascular filters, deflectors, and methods |
US10449028B2 (en) | 2015-04-22 | 2019-10-22 | Claret Medical, Inc. | Vascular filters, deflectors, and methods |
US10426497B2 (en) | 2015-07-24 | 2019-10-01 | Route 92 Medical, Inc. | Anchoring delivery system and methods |
US11147699B2 (en) | 2015-07-24 | 2021-10-19 | Route 92 Medical, Inc. | Methods of intracerebral implant delivery |
US11224449B2 (en) | 2015-07-24 | 2022-01-18 | Route 92 Medical, Inc. | Anchoring delivery system and methods |
US20170028170A1 (en) * | 2015-07-28 | 2017-02-02 | Andrew Ho, M.D., Inc. | Guide catheter extension device and methods of use for cardiology procedures |
US10617851B2 (en) * | 2016-03-31 | 2020-04-14 | Covidien Lp | Medical catheter system |
US20170281915A1 (en) * | 2016-03-31 | 2017-10-05 | Covidien Lp | Medical catheter system |
US20210100986A1 (en) * | 2016-05-18 | 2021-04-08 | Daniel Ezra Walzman | Vessel access catheter |
US11020133B2 (en) | 2017-01-10 | 2021-06-01 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11399852B2 (en) | 2017-01-10 | 2022-08-02 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US10864350B2 (en) | 2017-01-20 | 2020-12-15 | Route 92 Medical, Inc. | Single operator intracranial medical device delivery systems and methods of use |
US10799669B2 (en) | 2017-01-20 | 2020-10-13 | Route 92 Medical, Inc. | Single operator intracranial medical device delivery systems and methods of use |
US11337790B2 (en) | 2017-02-22 | 2022-05-24 | Boston Scientific Scimed, Inc. | Systems and methods for protecting the cerebral vasculature |
US11191630B2 (en) | 2017-10-27 | 2021-12-07 | Claret Medical, Inc. | Systems and methods for protecting the cerebral vasculature |
US11154390B2 (en) | 2017-12-19 | 2021-10-26 | Claret Medical, Inc. | Systems for protection of the cerebral vasculature during a cardiac procedure |
US11439491B2 (en) | 2018-04-26 | 2022-09-13 | Claret Medical, Inc. | Systems and methods for protecting the cerebral vasculature |
US11229770B2 (en) | 2018-05-17 | 2022-01-25 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11607523B2 (en) | 2018-05-17 | 2023-03-21 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11925770B2 (en) | 2018-05-17 | 2024-03-12 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
US11464940B2 (en) * | 2018-05-31 | 2022-10-11 | Alex Sotolongo | System and method for bi-directional fluid injection |
US11351023B2 (en) | 2018-08-21 | 2022-06-07 | Claret Medical, Inc. | Systems and methods for protecting the cerebral vasculature |
US11400255B1 (en) | 2018-11-15 | 2022-08-02 | Route 92 Medical, Inc. | Aspiration catheter systems and methods of use |
CN114025821A (en) * | 2019-06-24 | 2022-02-08 | 祥丰医疗私人有限公司 | Multi-lumen catheter |
EP4181999A4 (en) * | 2021-02-15 | 2024-03-06 | Teleflex Life Sciences Ltd | Support catheters and associated loading components |
EP4356948A1 (en) * | 2022-10-17 | 2024-04-24 | Imds R&D Bv | A rapid exchange guide catheter for guiding a guidewire through coronary arteries |
Also Published As
Publication number | Publication date |
---|---|
WO2007089570A3 (en) | 2008-11-27 |
WO2007089570A2 (en) | 2007-08-09 |
EP1993654A4 (en) | 2010-08-04 |
EP1993654A2 (en) | 2008-11-26 |
US20140228808A1 (en) | 2014-08-14 |
US10173029B2 (en) | 2019-01-08 |
JP2009524490A (en) | 2009-07-02 |
US20100106237A1 (en) | 2010-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10173029B2 (en) | Deflection control catheters, support catheters and methods of use | |
US11399852B2 (en) | Aspiration catheter systems and methods of use | |
US11793529B2 (en) | Aspiration catheter systems and methods of use | |
US11771867B2 (en) | Suction catheter systems for applying effective aspiration in remote vessels, especially cerebral arteries | |
US11712544B2 (en) | Guide extension catheter | |
US5899890A (en) | Flow-directed catheter system and method of use | |
US8403912B2 (en) | Catheter with a pre-shaped distal tip | |
US6866655B2 (en) | Medical device with atraumatic tip | |
EP2114504B1 (en) | System for intraluminal travel within living vasculature | |
JP7155269B2 (en) | Guided extension catheter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TRIVENT, LLC, MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WEBSTER, MARK W.I.;GALDONIK, JASON;REEL/FRAME:019270/0447;SIGNING DATES FROM 20070312 TO 20070322 |
|
AS | Assignment |
Owner name: WEBSTER, MARK, NEW ZEALAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TRIVENT, LLC;REEL/FRAME:031975/0157 Effective date: 20130520 Owner name: OTIRA MEDICAL, MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WEBSTER, MARK;REEL/FRAME:031975/0214 Effective date: 20131026 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |