US20030018354A1 - Integral vascular filter system with core wire activation - Google Patents

Integral vascular filter system with core wire activation Download PDF

Info

Publication number
US20030018354A1
US20030018354A1 US10/160,553 US16055302A US2003018354A1 US 20030018354 A1 US20030018354 A1 US 20030018354A1 US 16055302 A US16055302 A US 16055302A US 2003018354 A1 US2003018354 A1 US 2003018354A1
Authority
US
United States
Prior art keywords
guidewire
diameter
prescribed
filter system
core wire
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
Application number
US10/160,553
Inventor
Noah Roth
Kirk Johnson
David Wilson
Tom Wiatrowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cordis Corp
Original Assignee
Cordis Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cordis Corp filed Critical Cordis Corp
Priority to US10/160,553 priority Critical patent/US20030018354A1/en
Assigned to CORDIS CORPORATION reassignment CORDIS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WIATROWSKI, THOMAS, WILSON, DAVID, JOHNSON, KIRK, ROTH, NOAH M.
Publication of US20030018354A1 publication Critical patent/US20030018354A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/01Filters implantable into blood vessels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/01Filters implantable into blood vessels
    • A61F2002/016Filters implantable into blood vessels made from wire-like elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/01Filters implantable into blood vessels
    • A61F2002/018Filters implantable into blood vessels made from tubes or sheets of material, e.g. by etching or laser-cutting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004Rounded shapes, e.g. with rounded corners
    • A61F2230/0006Rounded shapes, e.g. with rounded corners circular
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0073Quadric-shaped
    • A61F2230/008Quadric-shaped paraboloidal
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0093Umbrella-shaped, e.g. mushroom-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09175Guide wires having specific characteristics at the distal tip
    • A61M2025/09183Guide wires having specific characteristics at the distal tip having tools at the distal tip
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M2025/09191Guide wires made of twisted wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires

Definitions

  • the present invention relates to the treatment of vascular disease, and more particularly to an integral vascular filter system for use during medical procedures.
  • Percutaneous transluminal coronary angioplasty PTCA
  • stenting and atherectomy are therapeutic medical procedures used to increase blood flow through the coronary arteries. These procedures may often be performed as alternatives to coronary bypass surgery.
  • PTA percutaneous transluminal angioplasty
  • stenting may often be performed as alternatives to carotid endarterectomy, and femoral-popliteal bypass procedures.
  • PTRA percutaneous transluminal renal angioplasty
  • stenting are procedures used to increase blood flow through the renal arteries, to address problems with renal function, and hypertension.
  • the angioplasty balloon is inflated within the stenosed vessel, at the location of an occlusion, in order to shear and disrupt the wall components of the vessel to obtain an enlarged lumen.
  • an endoluminal prosthesis is implanted in the vessel to maintain patency following the procedure.
  • a rotating blade is used to shear plaque from the arterial wall.
  • guidewires In order to initiate these procedures, one must first introduce a guidewire into the lumen of the vessel to serve as a conduit for other interventional devices, such as angioplasty balloons and stent delivery systems. This guidewire must be advanced into position past the location of the occlusion. Guidewires must be capable of traversing tortuous pathways within the body, consisting of bends, loops and branches. For this reason, guidewires need to be flexible, but they should also be sufficiently stiff to serve as a conduit for other devices. In addition, they must be “torqueable” to facilitate directional changes as they are guided into position. Guidewires are well known in the art, and are typically made of stainless steel, tantalum or other suitable materials, in a variety of different designs. See, for example, U.S. Pat. Nos. 4,545,390,4,619,274, 5,095,915 and 6,191,365.
  • Vascular filters are also well known in the art, especially vena cava filters, as illustrated in U.S. Pat. Nos. 4,727,873 and 4,688,553.
  • Vascular filters are often used during a postoperative period, when there is a perceived risk of a patient encountering pulmonary embolism resulting from clots generated peri-operatively. Pulmonary embolism is a serious and potentially fatal condition that occurs when these clots travel to the lungs.
  • the filter is therefore typically placed in the vena cava to catch and trap clots before they can reach the lungs.
  • the prior art makes reference to the use of alloys such as Nitinol (Ni—Ti alloy), which have shape memory and/or superelastic characteristics, in medical devices that are designed to be inserted into a patient's body.
  • the shape memory characteristics allow the devices to be deformed to facilitate their insertion into a body lumen or cavity, and then, when heated within the body, to return to their original shape.
  • Superelastic characteristics generally allow the metal to be deformed and restrained in the deformed condition to facilitate the insertion of the medical device containing the metal into a patient's body, with such deformation causing the phase transformation. Once within the body lumen, the restraint on the superelastic member may be removed, thereby reducing the stress therein so that the superelastic member may return to its original un-deformed shape by the transformation back to the original phase.
  • the present invention provides for an integral vascular filter system, which may be used to address the clinical problem of minimizing profile or diameter to enable or facilitate the crossing of a lesion or obstruction in the vessel, and which overcomes many of the deficiencies associated with the prior art devices, as briefly described above.
  • the present invention is directed to an integral vascular filter system comprising a multi-filament guidewire, a prescribed filter shape in the distal portion of the guidewire, and a porous covering attached to the prescribed filter shape in the distal portion of the guidewire.
  • the prescribed filter shape may be formed from the multi-filaments of the distal portion of the guidewire.
  • the distal portion of the guidewire has a smaller first diameter for insertion into a vessel, and a second larger diameter for expanding to substantially equal the diameter of the lumen of the vessel, and to be placed in generally sealing relationship with the lumen.
  • the system further comprises an actuating core wire for causing the distal portion of the guidewire to move between the smaller first diameter, and the larger second diameter and prescribed filter shape.
  • the present invention is directed to an integral vascular filter system comprising a monofilament guidewire, a prescribed filter shape in the distal portion of the guidewire, and a porous covering attached to the prescribed filter shape in the distal portion of the guidewire.
  • the prescribed filter shape may be formed from slots cut into the distal portion of the guidewire.
  • the distal portion of the guidewire has a smaller first diameter for insertion into a vessel, and a second larger diameter for expanding to substantially equal the diameter of the lumen of the vessel, and to be placed in generally sealing relationship with the lumen.
  • the system further comprises an actuating core wire for causing the distal portion of the guidewire to move between the smaller first diameter, and the larger second diameter and prescribed filter shape.
  • the integral vascular filter system enables or facilitates crossing lesions or obstructions in vessels by minimizing the profile or diameter of the overall system, due to the integral nature of the filter, and due to the elimination of the need for a constraining sheath over the guidewire/filter assembly.
  • the filter is actuated through the use of a core wire, and is then used to capture embolic particulates released during a medical procedure. The filter is then collapsed, and the system is removed from the patient.
  • the advantage of the present invention is that the low profile or minimized diameter of the integral vascular filter system may enable or facilitate the crossing of lesions or obstructions in the vessel, which may not be crossable with other filter devices.
  • FIG. 1 is an simplified, cross-sectional view of an exemplary embodiment of the integral vascular filter system made from multi-filament wire, with the filter in the open position, in accordance with the present invention.
  • FIG. 2 is an enlarged, partial cross-sectional view of an exemplary embodiment of the integral vascular filter system made from multi-filament wire, in accordance with the present invention.
  • the integral vascular filter system of the present invention is designed to address the clinical problem of minimizing profile or diameter to enable or facilitate the crossing of a lesion or obstruction in the vessel.
  • the device comprises a multi-filament guidewire having an outer diameter and an inner diameter, a distal end and a proximal end, a distal portion and a proximal portion, and a prescribed filter shape in the distal portion of the guidewire, the distal portion having a proximal end, a midpoint and a distal end, a smaller first diameter for insertion into the lumen of a vessel, and a larger second diameter for expanding to substantially equal the diameter of the lumen and to be placed in generally sealing relationship with the lumen; a porous covering having a distal end and a proximal end, with the distal end of the porous covering attached near the distal end of the prescribed filter shape, and the proximal end of the porous covering attached near the midpoint of the proximal filter shape; and an actuating core wire
  • the integral vascular filter may be of sufficiently small profile or diameter to cross the lesion or occlusion, and may be placed distal to the occlusion to collect embolic particulates released during the procedure. Thereafter, the filter may be closed and removed from the patient, with the embolic particulates trapped within the filter.
  • FIG. 1 an integral vascular filter system 10 made in accordance with the present invention.
  • the integral vascular filter system 10 comprises a guidewire 12 , which comprises a guidewire distal portion 14 with a prescribed filter shape.
  • the guidewire distal portion 14 comprises a porous covering 16 attached to the guidewire distal portion 14 .
  • the guidewire is coaxially disposed around an actuating core wire 13 .
  • the filter is in the open position.
  • FIG. 2 when the guidewire distal portion 14 achieves its smaller first diameter, the filter is in the closed position.
  • the guidewire 12 may be a multi-filament wire.
  • the guidewire distal portion 14 has a prescribed filter shape formed from the filaments 24 of the multi-filament wire.
  • the guidewire distal portion 14 comprises a porous covering 16 attached to the guidewire distal portion 14 .
  • the filter is in the open position.
  • the integral vascular filter system 10 may be used to cross lesions or obstructions in a vessel, and may then be used to collect and trap embolic particulates released during a medical procedure.
  • the guidewire 12 is introduced into the lumen of the vessel, with the distal portion 14 in the closed position.
  • the actuating core wire 13 may be used to prevent actuation of the filter by advancing it distally, while the integral vascular filter system 10 is being positioned in the vessel, with the guidewire distal portion 14 positioned past the lesion or occlusion.
  • Other actuating means such as guide catheters or other procedural devices may also be employed.
  • the core wire 13 may be retracted to allow the guidewire distal portion 14 to achieve its larger second diameter and prescribed shape, with the porous covering 16 attached to the guidewire distal portion 14 .
  • other procedural devices such as angioplasty balloons and stent delivery systems, may be introduced over the guidewire 12 , to therapeutically treat the lesion or occlusion. Any embolic particulates released during the procedure may be captured in the porous covering 16 on the guidewire distal portion 14 , while the pores in the porous covering allow distal perfusion of blood.
  • the procedural devices may be withdrawn, and the core wire 13 may be advanced to return the guidewire distal portion 14 to its smaller first diameter.
  • the guidewire 12 may then be removed from the lumen of the vessel.
  • the guidewire 12 may be made from any number of suitable materials, and is preferably made from stainless steel, and is more preferably made from a superelastic alloy such as Nitinol.
  • the guidewire 12 may be a multi-filament wire, and may comprise straight or, more preferably, twisted multi-filaments.
  • the guidewire may alternatively be a monofilament guidewire, and the guidewire distal portion 14 may alternatively comprise any number or configuration of slots, and may preferably comprise longitudinal slots.
  • the actuating core wire may be made from any number of suitable materials, and is preferably made from stainless steel or Nitinol.
  • the Nitinol actuating core wire may further comprise a prescribed filter shape of its own formed by slots cut into the distal portion of the core wire.
  • the porous covering 16 may be made from any number of suitable materials, and is preferably made from a flexible polymeric material with elastomeric properties chosen from a group consisting of polyurethane, polyethylene, silicone, nylon, polypropylene, PVC, or a co-polymer or mixture thereof.
  • the porous covering 16 may also be made from a flexible metallic material, and is preferably made from a thin film Nickel Titanium material with superelastic and shape memory characteristics.
  • the porous covering 16 may comprise any number and configuration of pores and may preferably comprises regularly-spacer laser-formed holes wherein the pore size is from about 20 to about 300 microns.

Abstract

A integral vascular filter system comprising a multi-filament guidewire and an integral filter which may be used to capture embolic particulates during medical procedures, while allowing for continuous perfusion of blood. Filter activation is achieved via the use of a central core wire. The vascular filter system addresses the clinical problem of minimizing profile or diameter, so as to enable or facilitate the crossing of a lesion or obstruction in the vessel.

Description

    RELATED APPLICATION
  • This application is a continuation-in-part application of Applicant's co-pending application, Ser. No. 09/907860, filed Jul. 18, 2001, entitled Integral Vascular Filter System.[0001]
  • BACKGROUND
  • 1. Field of the Invention [0002]
  • The present invention relates to the treatment of vascular disease, and more particularly to an integral vascular filter system for use during medical procedures. [0003]
  • 2. Discussion of Related Art [0004]
  • Percutaneous transluminal coronary angioplasty (PTCA), stenting and atherectomy are therapeutic medical procedures used to increase blood flow through the coronary arteries. These procedures may often be performed as alternatives to coronary bypass surgery. PTA (percutaneous transluminal angioplasty) and stenting may often be performed as alternatives to carotid endarterectomy, and femoral-popliteal bypass procedures. PTRA (percutaneous transluminal renal angioplasty) and stenting are procedures used to increase blood flow through the renal arteries, to address problems with renal function, and hypertension. In PTCA, PTA or PTRA procedures, the angioplasty balloon is inflated within the stenosed vessel, at the location of an occlusion, in order to shear and disrupt the wall components of the vessel to obtain an enlarged lumen. In stenting, an endoluminal prosthesis is implanted in the vessel to maintain patency following the procedure. In atherectomy, a rotating blade is used to shear plaque from the arterial wall. [0005]
  • One of the complications associated with all these techniques is the accidental dislodgment of plaque, thrombus or other embolic particulates generated during manipulation of the vessel, thereby causing occlusion of the narrower vessels downstream and ischemia or infarct of the organ which the vessel supplies. Such emboli may be extremely dangerous to the patient, and may result in myocardial infarction, stroke or limb ischemia. In 1995, Waksman et al. disclosed that distal embolization is common after directional atherectomy in coronary arteries and saphenous vein grafts. See Waksman et al., American Heart Journal 129(3): 430-5 (1995). This study found that distal embolization occurs in 28% (31 out of 111) of the patients undergoing atherectomy. In Jan. 1999, Jordan, Jr. et al. disclosed that treatment of carotid stenosis using percutaneous angioplasty with stenting procedure is associated with more than eight times the rate of microemboli seen using carotid endarterectomy. See Jordan, Jr. et al. Cardiovascular Surgery 7(1): 338 (1999). Microemboli, as detected by transcranial Doppler monitoring in this study, have been shown to be a potential cause of stroke. The embolic materials include calcium, intimal debris, atheromatous plaque, and thrombi. [0006]
  • In order to initiate these procedures, one must first introduce a guidewire into the lumen of the vessel to serve as a conduit for other interventional devices, such as angioplasty balloons and stent delivery systems. This guidewire must be advanced into position past the location of the occlusion. Guidewires must be capable of traversing tortuous pathways within the body, consisting of bends, loops and branches. For this reason, guidewires need to be flexible, but they should also be sufficiently stiff to serve as a conduit for other devices. In addition, they must be “torqueable” to facilitate directional changes as they are guided into position. Guidewires are well known in the art, and are typically made of stainless steel, tantalum or other suitable materials, in a variety of different designs. See, for example, U.S. Pat. Nos. 4,545,390,4,619,274, 5,095,915 and 6,191,365. [0007]
  • Vascular filters are also well known in the art, especially vena cava filters, as illustrated in U.S. Pat. Nos. 4,727,873 and 4,688,553. Vascular filters are often used during a postoperative period, when there is a perceived risk of a patient encountering pulmonary embolism resulting from clots generated peri-operatively. Pulmonary embolism is a serious and potentially fatal condition that occurs when these clots travel to the lungs. The filter is therefore typically placed in the vena cava to catch and trap clots before they can reach the lungs. [0008]
  • Many of the vascular filters in the prior art are intended to be permanently placed in the venous system of the patient, so that even after the need for the filter has passed, the filter remains in place for the life of the patient. U.S. Pat. No. 3,952,747 describes a stainless steel filtering device that is permanently implanted transvenously within the inferior vena cava. This device is intended to treat recurrent pulmonary embolism. Permanent implantation is often deemed medically undesirable, but it is done because filters are implanted in patients in response to potentially life-threatening situations. [0009]
  • To avoid permanent implantation, it is highly desirable to provide an apparatus and method for preventing embolization associated with angioplasty, stenting or other procedures. In particular, it is desirable to provide a device which may be temporarily placed within the vascular system to collect and retrieve plaque, thrombus and other embolic particulates which have been dislodged and/or developed as a result of angioplasty, stenting or other procedures. Such a device is removed at the end of the procedure. See, for example, U.S. Pat. Nos. 5,814,064, 5,827,324, 5,910,154,. 6,053,932, 6,179,861 and 6,001,118. [0010]
  • One concern commonly encountered with all these devices is that the profile or outer diameter of the wire incorporating the filter tends to be substantially larger than the wire itself. In addition, many of the prior art devices require the use of a constraining sheath over the guidewire / filter assembly, which also increases the overall profile of the device. This larger profile may make it difficult to cross the lesion or obstruction in the vessel. If the guidewire with filter cannot cross the lesion or obstruction, the procedure must be done without a filter in place. This may lead to accidental dislodgment of plaque, thrombus or other embolic particulates generated during manipulation of the vessel, thereby causing occlusion of the narrower vessels downstream and ischemia or infarct of the organ which the vessel supplies. Such emboli may be extremely dangerous to the patient, and may result in myocardial infarction, stroke or limb ischemia. [0011]
  • The prior art makes reference to the use of alloys such as Nitinol (Ni—Ti alloy), which have shape memory and/or superelastic characteristics, in medical devices that are designed to be inserted into a patient's body. The shape memory characteristics allow the devices to be deformed to facilitate their insertion into a body lumen or cavity, and then, when heated within the body, to return to their original shape. Superelastic characteristics, on the other hand, generally allow the metal to be deformed and restrained in the deformed condition to facilitate the insertion of the medical device containing the metal into a patient's body, with such deformation causing the phase transformation. Once within the body lumen, the restraint on the superelastic member may be removed, thereby reducing the stress therein so that the superelastic member may return to its original un-deformed shape by the transformation back to the original phase. [0012]
  • The prior art makes reference to the use of metal alloys having superelastic characteristics in medical devices which are intended to be inserted or otherwise used within a patient's body. See for example, U.S. Pat. No. 4,665,905. Some guidewire designs have recommended the use of superelastic alloys, for example, U.S. Pat. Nos. 4,925,445 and 4,984,581. [0013]
  • However, the prior art has yet to disclose any guidewires, made from Nitinol or other suitable materials, incorporating vascular filters, which may be used to address the clinical problem of minimizing profile or diameter, so as to facilitate the crossing of a lesion or obstruction in the vessel. [0014]
  • SUMMARY OF THE INVENTION
  • The present invention provides for an integral vascular filter system, which may be used to address the clinical problem of minimizing profile or diameter to enable or facilitate the crossing of a lesion or obstruction in the vessel, and which overcomes many of the deficiencies associated with the prior art devices, as briefly described above. [0015]
  • In accordance with one aspect, the present invention is directed to an integral vascular filter system comprising a multi-filament guidewire, a prescribed filter shape in the distal portion of the guidewire, and a porous covering attached to the prescribed filter shape in the distal portion of the guidewire. The prescribed filter shape may be formed from the multi-filaments of the distal portion of the guidewire. The distal portion of the guidewire has a smaller first diameter for insertion into a vessel, and a second larger diameter for expanding to substantially equal the diameter of the lumen of the vessel, and to be placed in generally sealing relationship with the lumen. The system further comprises an actuating core wire for causing the distal portion of the guidewire to move between the smaller first diameter, and the larger second diameter and prescribed filter shape. [0016]
  • In accordance with another aspect, the present invention is directed to an integral vascular filter system comprising a monofilament guidewire, a prescribed filter shape in the distal portion of the guidewire, and a porous covering attached to the prescribed filter shape in the distal portion of the guidewire. The prescribed filter shape may be formed from slots cut into the distal portion of the guidewire. The distal portion of the guidewire has a smaller first diameter for insertion into a vessel, and a second larger diameter for expanding to substantially equal the diameter of the lumen of the vessel, and to be placed in generally sealing relationship with the lumen. The system further comprises an actuating core wire for causing the distal portion of the guidewire to move between the smaller first diameter, and the larger second diameter and prescribed filter shape. [0017]
  • The integral vascular filter system enables or facilitates crossing lesions or obstructions in vessels by minimizing the profile or diameter of the overall system, due to the integral nature of the filter, and due to the elimination of the need for a constraining sheath over the guidewire/filter assembly. The filter is actuated through the use of a core wire, and is then used to capture embolic particulates released during a medical procedure. The filter is then collapsed, and the system is removed from the patient. [0018]
  • The advantage of the present invention is that the low profile or minimized diameter of the integral vascular filter system may enable or facilitate the crossing of lesions or obstructions in the vessel, which may not be crossable with other filter devices.[0019]
  • BRIEF DESCRIPTION OF DRAWINGS
  • The foregoing and other aspects of the present invention will best be appreciated with reference to the detailed description of the invention in conjunction with the accompanying drawings, wherein: [0020]
  • FIG. 1 is an simplified, cross-sectional view of an exemplary embodiment of the integral vascular filter system made from multi-filament wire, with the filter in the open position, in accordance with the present invention. [0021]
  • FIG. 2 is an enlarged, partial cross-sectional view of an exemplary embodiment of the integral vascular filter system made from multi-filament wire, in accordance with the present invention. [0022]
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The integral vascular filter system of the present invention is designed to address the clinical problem of minimizing profile or diameter to enable or facilitate the crossing of a lesion or obstruction in the vessel. The device comprises a multi-filament guidewire having an outer diameter and an inner diameter, a distal end and a proximal end, a distal portion and a proximal portion, and a prescribed filter shape in the distal portion of the guidewire, the distal portion having a proximal end, a midpoint and a distal end, a smaller first diameter for insertion into the lumen of a vessel, and a larger second diameter for expanding to substantially equal the diameter of the lumen and to be placed in generally sealing relationship with the lumen; a porous covering having a distal end and a proximal end, with the distal end of the porous covering attached near the distal end of the prescribed filter shape, and the proximal end of the porous covering attached near the midpoint of the proximal filter shape; and an actuating core wire for causing the distal portion of the guidewire to move between the smaller first diameter and the larger second diameter and the prescribed filter shape. The integral vascular filter may be of sufficiently small profile or diameter to cross the lesion or occlusion, and may be placed distal to the occlusion to collect embolic particulates released during the procedure. Thereafter, the filter may be closed and removed from the patient, with the embolic particulates trapped within the filter. [0023]
  • While the present invention may be realized in a number of exemplary embodiments, for ease of explanation, one exemplary embodiment will be described in detail. Referring to the figures wherein like numerals indicate the same element throughout the views, there is shown in FIG. 1, an integral [0024] vascular filter system 10 made in accordance with the present invention. The integral vascular filter system 10 comprises a guidewire 12, which comprises a guidewire distal portion 14 with a prescribed filter shape. The guidewire distal portion 14 comprises a porous covering 16 attached to the guidewire distal portion 14. The guidewire is coaxially disposed around an actuating core wire 13. As illustrated in FIG. 1, when the guidewire distal portion 14 achieves its larger second diameter and prescribed filter shape, the filter is in the open position. As illustrated in FIG. 2, when the guidewire distal portion 14 achieves its smaller first diameter, the filter is in the closed position.
  • In accordance with an exemplary embodiment, as illustrated in FIGS. 1 and 2, the [0025] guidewire 12 may be a multi-filament wire. As illustrated in FIG. 1, the guidewire distal portion 14 has a prescribed filter shape formed from the filaments 24 of the multi-filament wire. The guidewire distal portion 14 comprises a porous covering 16 attached to the guidewire distal portion 14. As illustrated in FIG. 1, when the guidewire distal portion 14 achieves its larger second diameter and prescribed filter shape, the filter is in the open position.
  • As illustrated in FIGS. [0026] 1, and 2, the integral vascular filter system 10 may be used to cross lesions or obstructions in a vessel, and may then be used to collect and trap embolic particulates released during a medical procedure. The guidewire 12 is introduced into the lumen of the vessel, with the distal portion 14 in the closed position. The actuating core wire 13 may be used to prevent actuation of the filter by advancing it distally, while the integral vascular filter system 10 is being positioned in the vessel, with the guidewire distal portion 14 positioned past the lesion or occlusion. Other actuating means, such as guide catheters or other procedural devices may also be employed. Once the integral vascular filter system 10 is in position past the lesion or occlusion, the core wire 13 may be retracted to allow the guidewire distal portion 14 to achieve its larger second diameter and prescribed shape, with the porous covering 16 attached to the guidewire distal portion 14. At this point, other procedural devices, such as angioplasty balloons and stent delivery systems, may be introduced over the guidewire 12, to therapeutically treat the lesion or occlusion. Any embolic particulates released during the procedure may be captured in the porous covering 16 on the guidewire distal portion 14, while the pores in the porous covering allow distal perfusion of blood. When the therapeutic treatment of the lesion or occlusion is complete, the procedural devices may be withdrawn, and the core wire 13 may be advanced to return the guidewire distal portion 14 to its smaller first diameter. The guidewire 12 may then be removed from the lumen of the vessel.
  • The [0027] guidewire 12 may be made from any number of suitable materials, and is preferably made from stainless steel, and is more preferably made from a superelastic alloy such as Nitinol. The guidewire 12 may be a multi-filament wire, and may comprise straight or, more preferably, twisted multi-filaments. The guidewire may alternatively be a monofilament guidewire, and the guidewire distal portion 14 may alternatively comprise any number or configuration of slots, and may preferably comprise longitudinal slots. The actuating core wire may be made from any number of suitable materials, and is preferably made from stainless steel or Nitinol. The Nitinol actuating core wire may further comprise a prescribed filter shape of its own formed by slots cut into the distal portion of the core wire. The porous covering 16 may be made from any number of suitable materials, and is preferably made from a flexible polymeric material with elastomeric properties chosen from a group consisting of polyurethane, polyethylene, silicone, nylon, polypropylene, PVC, or a co-polymer or mixture thereof. The porous covering 16 may also be made from a flexible metallic material, and is preferably made from a thin film Nickel Titanium material with superelastic and shape memory characteristics. The porous covering 16 may comprise any number and configuration of pores and may preferably comprises regularly-spacer laser-formed holes wherein the pore size is from about 20 to about 300 microns.
  • Although shown and described are what are believed to be the preferred embodiments, it is apparent that departures from specific designs and methods described and shown will suggest themselves to those skilled in the art and may be used without departing from the spirit and scope of the invention. The present invention is not restricted to the particular constructions described and illustrated, but should be constructed to include all modifications that may fall within the scope of the appended claims. strange indentions in claims[0028]

Claims (26)

That which is claimed is:
1. A vascular filter system for insertion into a lumen of a vessel, said vascular filter system comprising:
a) a multi-filament guidewire having an outer diameter and an inner diameter, a distal end and a proximal end, a distal portion and a proximal portion;
b) a prescribed filter shape in said distal portion of said guidewire, said prescribed filter shape comprising said multi-filaments of said distal portion of said guidewire; said prescribed filter shape having a proximal end, a midpoint and a distal end, a smaller first diameter for insertion into said lumen of said vessel, and a larger second diameter for expanding to substantially equal the diameter of said lumen and to be placed in generally sealing relationship with said lumen;
c) a porous covering having a distal end and a proximal end, with said distal end of said porous covering attached near said distal end of said prescribed filter shape, and said proximal end of said porous covering attached near said midpoint of said prescribed filter shape, and;
d) a generally solid actuating core wire for causing said prescribed filter shape to move between said smaller first diameter, and said larger second diameter, said core wire having a proximal end and a distal end, wherein said distal end of said prescribed filter shape is attached near said distal end of said core wire, and said guidewire is coaxially disposed around said core wire.
2. The vascular filter system according to claim 1, wherein said guidewire is made from Nickel-titanium alloy.
3. The vascular filter system according to claim 1, wherein said guidewire is made from stainless steel alloy.
4. The vascular filter system according to claim 1, wherein said prescribed filter shape achieves said smaller first diameter when said core wire is pushed distally to prevent said multi-filament wires from achieving said prescribed filter shape, and wherein said prescribed filter shape achieves said second larger diameter when said core wire is pulled proximally to allow said multi-filament wires to achieve said prescribed filter shape.
5. The vascular filter system according to claim 1, wherein said guidewire is a twisted multi-filament guidewire.
6. The vascular filter system according to claim 1, wherein a pore size of said porous covering is from about 20 to about 300 microns.
7. The vascular filter system according to claim 1, wherein said porous covering comprises regularly-spaced laser-formed pores.
8. The vascular filter system, according to claim 1, wherein said porous covering is a flexible polymeric material.
9. The vascular filter system according to claim 8, wherein said flexible polymeric material is chosen from a group consisting of polyurethane, polyethylene, silicone, nylon, polypropylene, PVC, or a co-polymer or mixture thereof.
10. The vascular filter system according to claim 8, wherein said flexible polymeric material is an elastomeric material capable of stretching to achieve said larger second diameter of said filter.
11. The vascular filter system according to claim 1, wherein said porous covering is a flexible metallic material.
12. The vascular filter system according to claim 11, wherein said flexible metallic material is a thin film Nickel Titanium material.
13. A method for capturing embolic particulates within the lumen of a vessel during a medical procedure, while allowing for continuous perfusion of blood, comprising the steps of:
a) providing a multi-filament guidewire having an outer diameter and an inner diameter, a distal portion and a proximal portion, with a prescribed filter shape in said distal portion of said guidewire; said prescribed filter shape comprising said multi-filaments of said distal portion of said guidewire, said prescribed filter shape having a proximal end, a midpoint and a distal end, a smaller first diameter for insertion into a vessel, and a second larger diameter for expanding to substantially equal the diameter of said lumen and to be placed in generally sealing relationship with said lumen; a porous covering having a distal end and a proximal end, with said distal end of said porous covering attached near said distal end of said prescribed filter shape, and said proximal end of said porous covering attached near said midpoint of said prescribed filter shape; and a generally solid actuating core wire for causing said prescribed filter shape to move between said smaller first diameter, and said larger second diameter;
said core wire having a proximal end and a distal end, wherein said distal end of said prescribed filter shape is attached near said distal end of said core wire, and said guidewire is coaxially disposed around said core wire;
b) inserting said guidewire into said lumen of said vessel until said distal portion of said guidewire is positioned past an occlusion in said vessel;
c) retracting said actuating core wire to cause said distal portion of said guidewire to achieve said larger second diameter and said prescribed shape;
d) advancing additional devices over said guidewire, and positioning said devices at the site of said occlusion in said vessel;
e) performing additional procedures to therapeutically treat said occlusion in said vessel;
f) capturing embolic particulates generated by said procedures, in said porous covering on said distal portion of said guidewire;
g) removing said additional devices from said guidewire;
h) advancing said actuating core wire to cause said distal portion of said guidewire to achieve said smaller first diameter; and
i) removing said guidewire from said lumen of said vessel, with said embolic particulates captured in said porous covering.
14. For use with a guidewire-based vascular filter system, the improvement comprising:
a core wire coaxially disposed within said guidewire, wherein said core wire is placed in tension to deploy said vascular filter.
15. A vascular filter system for insertion into a lumen of a vessel, said vascular filter system comprising:
(a) a multi-filament guidewire having an outer diameter and an inner diameter, a distal end and a proximal end;
(b) a prescribed filter shape near said distal end of said guidewire, said
prescribed filter shape comprising said multi-filaments of said guidewire; said
prescribed filter shape having a proximal end, and a distal end, a smaller first
diameter for insertion into said lumen of said vessel, and a larger second
diameter for expanding to substantially equal the diameter of said lumen and
to be placed in generally sealing relationship with said lumen;
(c) a porous covering attached near said distal end of said prescribed filter shape, and;
(d) a generally solid actuating core wire for causing said prescribed filter shape to
move between said smaller first diameter, and said larger second diameter,
wherein said guidewire is coaxially disposed around said core wire.
16. The vascular filter system according to claim 15, wherein said guidewire is made
from Nickel-titanium alloy.
17. The vascular filter system according to claim 15, wherein said guidewire is made
from stainless steel alloy.
18. The vascular filter system according to claim 15 wherein said prescribed filter shape achieves said smaller first diameter when said core wire is
pushed distally to prevent said multi-filament wires from achieving said prescribed
filter shape, and wherein said prescribed filter shape achieves said second larger diameter when said core wire is pulled proximally to allow said multi-filament wires to achieve said prescribed filter shape.
19. The vascular filter system according to claim 15, wherein said guidewire is a twisted multi-filament guidewire.
20. The vascular filter system according to claim 15, wherein a pore size of said porous
covering is from about 20 to about 300 microns.
21. The vascular filter system according to claim 15, wherein said porous covering
comprises regularly-spaced laser-formed pores.
22. The vascular filter system, according to claim 15, wherein said porous covering is a
flexible polymeric material.
23. The vascular filter system according to claim 22, wherein said flexible polymeric
material is chosen from a group consisting of polyurethane, polyethylene, silicone,
nylon, polypropylene, PVC, or a co-polymer or mixture thereof.
24. The vascular filter system according to claim 22, wherein said flexible polymeric
material is an elastomeric material capable of stretching to achieve said larger second diameter of said filter.
25. The vascular filter system according to claim 15, wherein said porous covering is a flexible metallic material.
26. The vascular filter system according to claim 25, wherein said flexible metallic material is a thin film Nickel Titanium material.
US10/160,553 2001-07-18 2002-05-31 Integral vascular filter system with core wire activation Abandoned US20030018354A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/160,553 US20030018354A1 (en) 2001-07-18 2002-05-31 Integral vascular filter system with core wire activation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/907,860 US6656203B2 (en) 2001-07-18 2001-07-18 Integral vascular filter system
US10/160,553 US20030018354A1 (en) 2001-07-18 2002-05-31 Integral vascular filter system with core wire activation

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/907,860 Continuation-In-Part US6656203B2 (en) 2001-07-18 2001-07-18 Integral vascular filter system

Publications (1)

Publication Number Publication Date
US20030018354A1 true US20030018354A1 (en) 2003-01-23

Family

ID=25424762

Family Applications (2)

Application Number Title Priority Date Filing Date
US09/907,860 Expired - Lifetime US6656203B2 (en) 2001-07-18 2001-07-18 Integral vascular filter system
US10/160,553 Abandoned US20030018354A1 (en) 2001-07-18 2002-05-31 Integral vascular filter system with core wire activation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US09/907,860 Expired - Lifetime US6656203B2 (en) 2001-07-18 2001-07-18 Integral vascular filter system

Country Status (2)

Country Link
US (2) US6656203B2 (en)
EP (1) EP1277447A3 (en)

Cited By (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020107541A1 (en) * 1999-05-07 2002-08-08 Salviac Limited. Filter element for embolic protection device
US20030009189A1 (en) * 1997-11-07 2003-01-09 Salviac Limited Embolic protection device
US20030032977A1 (en) * 1997-11-07 2003-02-13 Salviac Limited Filter element with retractable guidewire tip
US20030032941A1 (en) * 2001-08-13 2003-02-13 Boyle William J. Convertible delivery systems for medical devices
US20030130684A1 (en) * 2001-12-21 2003-07-10 Eamon Brady Support frame for an embolic protection device
US20030144688A1 (en) * 1999-05-07 2003-07-31 Salviac Limited Support frame for an embolic protection device
US20030144687A1 (en) * 1999-05-07 2003-07-31 Salviac Limited Support frame for an embolic protection device
US20030187474A1 (en) * 1997-11-07 2003-10-02 Martin Keegan Embolic protection system
US20030212361A1 (en) * 1999-12-30 2003-11-13 Boyle William J. Embolic protection devices
US20030212429A1 (en) * 2002-03-05 2003-11-13 Martin Keegan Embolic protection system
US20040064099A1 (en) * 2002-09-30 2004-04-01 Chiu Jessica G. Intraluminal needle injection substance delivery system with filtering capability
US20040068288A1 (en) * 1999-12-23 2004-04-08 Olin Palmer Intravascular device and system
US20040088000A1 (en) * 2002-10-31 2004-05-06 Muller Paul F. Single-wire expandable cages for embolic filtering devices
US20040088002A1 (en) * 2001-04-30 2004-05-06 Boyle William J. Deployment and recovery control systems for embolic protection devices
US20040093009A1 (en) * 2002-09-30 2004-05-13 Denison Andy E. Embolic filtering devices
US20040093010A1 (en) * 2002-09-30 2004-05-13 Gesswein Douglas H. Guide wire with embolic filtering attachment
US20040167568A1 (en) * 1999-12-30 2004-08-26 Boyle William J. Embolic protection devices
US20040167567A1 (en) * 2001-03-23 2004-08-26 Cano Gerald G. Method and apparatus for capturing objects beyond an operative site in medical procedures
US20040172055A1 (en) * 2003-02-27 2004-09-02 Huter Scott J. Embolic filtering devices
US20050004595A1 (en) * 2003-02-27 2005-01-06 Boyle William J. Embolic filtering devices
US20050075663A1 (en) * 2001-11-27 2005-04-07 Boyle William J. Offset proximal cage for embolic filtering devices
US20050197687A1 (en) * 2004-03-02 2005-09-08 Masoud Molaei Medical devices including metallic films and methods for making same
US20050197689A1 (en) * 2004-03-02 2005-09-08 Masoud Molaei Medical devices including metallic films and methods for making same
US20050197690A1 (en) * 2004-03-02 2005-09-08 Masoud Molaei Medical devices including metallic films and methods for making same
US20050222583A1 (en) * 2000-11-09 2005-10-06 Cano Gerald G Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire
US20050228439A1 (en) * 2001-06-01 2005-10-13 Andrews Christopher C Delivery and recovery system for embolic protection system
US20060100659A1 (en) * 2004-09-17 2006-05-11 Dinh Minh Q Shape memory thin film embolic protection device with frame
US20060142838A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for loading and deploying same
US20060142851A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for making same
US20060142842A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for making same
US20060142845A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for making same
US20060229638A1 (en) * 2005-03-29 2006-10-12 Abrams Robert M Articulating retrieval device
US20060259132A1 (en) * 2005-05-02 2006-11-16 Cook Incorporated Vascular stent for embolic protection
US20060259131A1 (en) * 2005-05-16 2006-11-16 Masoud Molaei Medical devices including metallic films and methods for making same
US20060287670A1 (en) * 2005-06-20 2006-12-21 Cook Incorporated Embolic protection device having a reticulated body with staggered struts
US20070016246A1 (en) * 2005-07-12 2007-01-18 Cook Incorporated Embolic protection device with an integral basket and bag
US20070016245A1 (en) * 2005-07-12 2007-01-18 Cook Incorporated Embolic protection device with a filter bag that disengages from a basket
US20070038241A1 (en) * 2005-08-04 2007-02-15 Cook Incorporated Embolic protection device having inflatable frame
US20070078481A1 (en) * 2005-10-04 2007-04-05 Cook Incorporated Embolic protection device
US20070088382A1 (en) * 2005-10-13 2007-04-19 Bei Nianjiong J Embolic protection recovery catheter assembly
US20070088383A1 (en) * 2005-10-03 2007-04-19 Cook Incorporated Embolic protection device
US20070100372A1 (en) * 2005-11-02 2007-05-03 Cook Incorporated Embolic protection device having a filter
US20070112374A1 (en) * 2005-10-18 2007-05-17 Cook Incorporated Invertible filter for embolic protection
US20070118173A1 (en) * 2005-11-17 2007-05-24 Cook Incorporated Foam embolic protection device
US20070162071A1 (en) * 2004-03-19 2007-07-12 Burkett David H Locking component for an embolic filter assembly
US20070191877A1 (en) * 2004-09-17 2007-08-16 Dinh Minh Q Shape memory thin film embolic protection device
US20070276429A1 (en) * 2001-06-29 2007-11-29 Advanced Cardiovascular Systems, Inc. Filter device for embolic protection systems
US20080071307A1 (en) * 2006-09-19 2008-03-20 Cook Incorporated Apparatus and methods for in situ embolic protection
US20080167677A1 (en) * 1999-05-07 2008-07-10 Salviac Limited Filter element for embolic protection device
US20080215084A1 (en) * 2000-10-17 2008-09-04 Advanced Cardiovascular Systems, Inc. Delivery systems for embolic filter devices
US20080275498A1 (en) * 1999-12-23 2008-11-06 Endosvascular Technologies, Inc. Embolic basket
US20090076538A1 (en) * 2007-09-14 2009-03-19 Cook Incorporated Helical embolic protection device
US20090076539A1 (en) * 2007-09-14 2009-03-19 Cook Incorporated Helical thrombus removal device
US20090254118A1 (en) * 2000-07-13 2009-10-08 Advanced Cardiovascular Systems, Inc. Embolic protection guide wire
US20100004673A1 (en) * 2002-06-26 2010-01-07 Advanced Cardiovascular Systems, Inc. Embolic filtering devices for bifurcated vessels
US20100004674A1 (en) * 1999-12-30 2010-01-07 Advanced Cardiovascular Systems, Inc. Device for, and method of, blocking emboli in vessels such as blood arteries
US7662166B2 (en) 2000-12-19 2010-02-16 Advanced Cardiocascular Systems, Inc. Sheathless embolic protection system
US20100168785A1 (en) * 2008-12-29 2010-07-01 Cook Incorporated Embolic protection device and method of use
US20100211094A1 (en) * 2009-02-18 2010-08-19 Cook Incorporated Umbrella distal embolic protection device
US20100274277A1 (en) * 2009-04-27 2010-10-28 Cook Incorporated Embolic protection device with maximized flow-through
US7842064B2 (en) 2001-08-31 2010-11-30 Advanced Cardiovascular Systems, Inc. Hinged short cage for an embolic protection device
US7867273B2 (en) 2007-06-27 2011-01-11 Abbott Laboratories Endoprostheses for peripheral arteries and other body vessels
US7892251B1 (en) 2003-11-12 2011-02-22 Advanced Cardiovascular Systems, Inc. Component for delivering and locking a medical device to a guide wire
US20110098738A1 (en) * 2004-10-06 2011-04-28 James B Hunt Emboli capturing device having a coil and method for capturing emboli
US7959647B2 (en) 2001-08-30 2011-06-14 Abbott Cardiovascular Systems Inc. Self furling umbrella frame for carotid filter
US7972356B2 (en) 2001-12-21 2011-07-05 Abbott Cardiovascular Systems, Inc. Flexible and conformable embolic filtering devices
US8016854B2 (en) 2001-06-29 2011-09-13 Abbott Cardiovascular Systems Inc. Variable thickness embolic filtering devices and methods of manufacturing the same
US8109962B2 (en) 2005-06-20 2012-02-07 Cook Medical Technologies Llc Retrievable device having a reticulation portion with staggered struts
US20120053596A1 (en) * 2010-09-01 2012-03-01 Charles Samuel Squire Gordon Medical snare device
US8142442B2 (en) 1999-12-23 2012-03-27 Abbott Laboratories Snare
US8216269B2 (en) 2005-11-02 2012-07-10 Cook Medical Technologies Llc Embolic protection device having reduced profile
US8216209B2 (en) 2007-05-31 2012-07-10 Abbott Cardiovascular Systems Inc. Method and apparatus for delivering an agent to a kidney
US8221446B2 (en) 2005-03-15 2012-07-17 Cook Medical Technologies Embolic protection device
US8262689B2 (en) 2001-09-28 2012-09-11 Advanced Cardiovascular Systems, Inc. Embolic filtering devices
US8377092B2 (en) 2005-09-16 2013-02-19 Cook Medical Technologies Llc Embolic protection device
US8945169B2 (en) 2005-03-15 2015-02-03 Cook Medical Technologies Llc Embolic protection device
US9138307B2 (en) 2007-09-14 2015-09-22 Cook Medical Technologies Llc Expandable device for treatment of a stricture in a body vessel
US20150335415A1 (en) * 2007-01-31 2015-11-26 Stanley Batiste Intravenous filter with guidewire and catheter access guide
US9259305B2 (en) 2005-03-31 2016-02-16 Abbott Cardiovascular Systems Inc. Guide wire locking mechanism for rapid exchange and other catheter systems
US9901434B2 (en) 2007-02-27 2018-02-27 Cook Medical Technologies Llc Embolic protection device including a Z-stent waist band
CN116942255A (en) * 2023-09-18 2023-10-27 北京华脉泰科医疗器械股份有限公司 Thrombus removing device

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7314477B1 (en) 1998-09-25 2008-01-01 C.R. Bard Inc. Removable embolus blood clot filter and filter delivery unit
US7150756B2 (en) * 1999-04-01 2006-12-19 Scion Cardio-Vascular, Inc Radiopaque locking frame, filter and flexible end
US8414543B2 (en) 1999-10-22 2013-04-09 Rex Medical, L.P. Rotational thrombectomy wire with blocking device
US6951570B2 (en) 2001-07-02 2005-10-04 Rubicon Medical, Inc. Methods, systems, and devices for deploying a filter from a filter device
US6656203B2 (en) * 2001-07-18 2003-12-02 Cordis Corporation Integral vascular filter system
US9204956B2 (en) 2002-02-20 2015-12-08 C. R. Bard, Inc. IVC filter with translating hooks
US7118539B2 (en) * 2002-02-26 2006-10-10 Scimed Life Systems, Inc. Articulating guide wire for embolic protection and methods of use
US7172614B2 (en) * 2002-06-27 2007-02-06 Advanced Cardiovascular Systems, Inc. Support structures for embolic filtering devices
US7220271B2 (en) * 2003-01-30 2007-05-22 Ev3 Inc. Embolic filters having multiple layers and controlled pore size
US7323001B2 (en) * 2003-01-30 2008-01-29 Ev3 Inc. Embolic filters with controlled pore size
US7027077B2 (en) 2003-02-24 2006-04-11 Polaroid Corporation Platen assembly for thermal printer
US7331976B2 (en) 2003-04-29 2008-02-19 Rex Medical, L.P. Distal protection device
US7604649B2 (en) 2003-04-29 2009-10-20 Rex Medical, L.P. Distal protection device
US7951091B2 (en) 2003-07-31 2011-05-31 Tyco Healthcare Group Lp Guide wire with stranded tip
US7056286B2 (en) 2003-11-12 2006-06-06 Adrian Ravenscroft Medical device anchor and delivery system
US7704267B2 (en) 2004-08-04 2010-04-27 C. R. Bard, Inc. Non-entangling vena cava filter
US7794473B2 (en) 2004-11-12 2010-09-14 C.R. Bard, Inc. Filter delivery system
US9510930B2 (en) 2008-10-22 2016-12-06 Contego Medical, Llc Angioplasty device with embolic filter
US9707071B2 (en) 2004-11-24 2017-07-18 Contego Medical Llc Percutaneous transluminal angioplasty device with integral embolic filter
US8550985B2 (en) * 2004-12-14 2013-10-08 Boston Scientific Scimed, Inc. Applications of LIPSS in polymer medical devices
US8267954B2 (en) 2005-02-04 2012-09-18 C. R. Bard, Inc. Vascular filter with sensing capability
WO2006089178A2 (en) 2005-02-18 2006-08-24 Ev3 Inc. Rapid exchange catheters and embolic protection devices
US7967838B2 (en) 2005-05-12 2011-06-28 C. R. Bard, Inc. Removable embolus blood clot filter
US20070005097A1 (en) * 2005-06-20 2007-01-04 Renati Richard J Intravascular filter
US8062327B2 (en) 2005-08-09 2011-11-22 C. R. Bard, Inc. Embolus blood clot filter and delivery system
JP2009519731A (en) 2005-11-18 2009-05-21 シー・アール・バード・インコーポレイテツド Vena cava filter with filament
US7846175B2 (en) 2006-04-03 2010-12-07 Medrad, Inc. Guidewire and collapsable filter system
WO2007133366A2 (en) 2006-05-02 2007-11-22 C. R. Bard, Inc. Vena cava filter formed from a sheet
CA2655158A1 (en) 2006-06-05 2007-12-13 C.R. Bard Inc. Embolus blood clot filter utilizable with a single delivery system or a single retrieval system in one of a femoral or jugular access
US20080300620A1 (en) * 2007-05-31 2008-12-04 C.R. Bard, Inc. Embolic filter made from a composite material
EP2203209B1 (en) * 2007-06-26 2015-08-19 Roxwood Medical, Inc. Catheter apparatus for treating vasculatures
US8795318B2 (en) 2007-09-07 2014-08-05 Merit Medical Systems, Inc. Percutaneous retrievable vascular filter
US8062328B2 (en) 2007-09-07 2011-11-22 Merit Medical Systems, Inc. Percutaneous permanent retrievable vascular filter
JP2012024111A (en) * 2008-11-12 2012-02-09 Nihon Univ Guide wire for insertion in living body vessel part
EP3505136A1 (en) * 2009-07-29 2019-07-03 C.R. Bard Inc. Tubular filter
WO2011056981A2 (en) 2009-11-04 2011-05-12 Nitinol Devices And Components, Inc. Alternating circumferential bridge stent design and methods for use thereof
WO2012047308A1 (en) 2010-10-08 2012-04-12 Nitinol Devices And Components, Inc. Alternating circumferential bridge stent design and methods for use thereof
US8740931B2 (en) 2011-08-05 2014-06-03 Merit Medical Systems, Inc. Vascular filter
US8734480B2 (en) 2011-08-05 2014-05-27 Merit Medical Systems, Inc. Vascular filter
WO2013126773A1 (en) 2012-02-23 2013-08-29 Merit Medical Systems, Inc. Vascular filter
EP3305220B8 (en) 2013-03-15 2022-04-20 Vetex Medical Limited A device suitable for removing matter from inside the lumen and the wall of a body lumen
US10722338B2 (en) 2013-08-09 2020-07-28 Merit Medical Systems, Inc. Vascular filter delivery systems and methods
JPWO2016072107A1 (en) 2014-11-04 2017-08-10 テルモ株式会社 Medical device
US11096715B2 (en) 2014-11-04 2021-08-24 Terumo Kabushiki Kaisha Medical device and treatment method
EP3017775A1 (en) 2014-11-07 2016-05-11 National University of Ireland, Galway A thrombectomy device
US10292805B2 (en) 2015-01-23 2019-05-21 Contego Medical, Llc Interventional device having an integrated embolic filter and associated methods
US10953204B2 (en) 2017-01-09 2021-03-23 Boston Scientific Scimed, Inc. Guidewire with tactile feel
EP3706651A4 (en) * 2017-11-09 2021-07-28 Contego Medical, Inc. Thrombectomy device and methods of use

Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952747A (en) * 1974-03-28 1976-04-27 Kimmell Jr Garman O Filter and filter insertion instrument
US4545390A (en) * 1982-09-22 1985-10-08 C. R. Bard, Inc. Steerable guide wire for balloon dilatation procedure
US4619274A (en) * 1985-04-18 1986-10-28 Advanced Cardiovascular Systems, Inc. Torsional guide wire with attenuated diameter
US4665905A (en) * 1986-06-09 1987-05-19 Brown Charles S Dynamic elbow and knee extension brace
US4688553A (en) * 1984-11-29 1987-08-25 L. G. Medical S.A. Filter, particularly for trapping blood clots
US4727873A (en) * 1984-04-17 1988-03-01 Mobin Uddin Kazi Embolus trap
US4925445A (en) * 1983-09-16 1990-05-15 Fuji Terumo Co., Ltd. Guide wire for catheter
US4969890A (en) * 1987-07-10 1990-11-13 Nippon Zeon Co., Ltd. Catheter
US4984581A (en) * 1988-10-12 1991-01-15 Flexmedics Corporation Flexible guide having two-way shape memory alloy
US4991602A (en) * 1989-06-27 1991-02-12 Flexmedics Corporation Flexible guide wire with safety tip
US5069226A (en) * 1989-04-28 1991-12-03 Tokin Corporation Catheter guidewire with pseudo elastic shape memory alloy
US5095915A (en) * 1990-03-19 1992-03-17 Target Therapeutics Guidewire with flexible distal tip
US5171383A (en) * 1987-01-07 1992-12-15 Terumo Kabushiki Kaisha Method of manufacturing a differentially heat treated catheter guide wire
US5695519A (en) * 1995-11-30 1997-12-09 American Biomed, Inc. Percutaneous filter for carotid angioplasty
US5769816A (en) * 1995-11-07 1998-06-23 Embol-X, Inc. Cannula with associated filter
US5814064A (en) * 1997-03-06 1998-09-29 Scimed Life Systems, Inc. Distal protection device
US5827324A (en) * 1997-03-06 1998-10-27 Scimed Life Systems, Inc. Distal protection device
US5876367A (en) * 1996-12-05 1999-03-02 Embol-X, Inc. Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries
US5895399A (en) * 1996-07-17 1999-04-20 Embol-X Inc. Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries
US5910154A (en) * 1997-05-08 1999-06-08 Embol-X, Inc. Percutaneous catheter and guidewire having filter and medical device deployment
US6019736A (en) * 1995-11-06 2000-02-01 Francisco J. Avellanet Guidewire for catheter
US6068623A (en) * 1997-03-06 2000-05-30 Percusurge, Inc. Hollow medical wires and methods of constructing same
US6069814A (en) * 1989-05-26 2000-05-30 Texas Instruments Incorporated Multiple input buffers for address bits
US6152946A (en) * 1998-03-05 2000-11-28 Scimed Life Systems, Inc. Distal protection device and method
US6171328B1 (en) * 1999-11-09 2001-01-09 Embol-X, Inc. Intravascular catheter filter with interlocking petal design and methods of use
US6179861B1 (en) * 1999-07-30 2001-01-30 Incept Llc Vascular device having one or more articulation regions and methods of use
US6179859B1 (en) * 1999-07-16 2001-01-30 Baff Llc Emboli filtration system and methods of use
US6191365B1 (en) * 1997-05-02 2001-02-20 General Science And Technology Corp Medical devices incorporating at least one element made from a plurality of twisted and drawn wires
US6203561B1 (en) * 1999-07-30 2001-03-20 Incept Llc Integrated vascular device having thrombectomy element and vascular filter and methods of use
US20020183783A1 (en) * 2001-06-04 2002-12-05 Shadduck John H. Guidewire for capturing emboli in endovascular interventions
US6558405B1 (en) * 2000-08-29 2003-05-06 Advanced Cardiovascular Systems, Inc. Embolic filter
US6656203B2 (en) * 2001-07-18 2003-12-02 Cordis Corporation Integral vascular filter system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001591A1 (en) 1994-07-08 1996-01-25 Microvena Corporation Method of forming medical devices; intravascular occlusion devices
US6391044B1 (en) * 1997-02-03 2002-05-21 Angioguard, Inc. Vascular filter system
WO1999044510A1 (en) * 1998-03-04 1999-09-10 Bioguide Consulting, Inc. Guidewire filter device
AU2736901A (en) * 1999-12-23 2001-07-03 Percusurge, Inc. Strut design for an occlusion device

Patent Citations (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952747A (en) * 1974-03-28 1976-04-27 Kimmell Jr Garman O Filter and filter insertion instrument
US4545390A (en) * 1982-09-22 1985-10-08 C. R. Bard, Inc. Steerable guide wire for balloon dilatation procedure
US4925445A (en) * 1983-09-16 1990-05-15 Fuji Terumo Co., Ltd. Guide wire for catheter
US4727873A (en) * 1984-04-17 1988-03-01 Mobin Uddin Kazi Embolus trap
US4688553A (en) * 1984-11-29 1987-08-25 L. G. Medical S.A. Filter, particularly for trapping blood clots
US4619274A (en) * 1985-04-18 1986-10-28 Advanced Cardiovascular Systems, Inc. Torsional guide wire with attenuated diameter
US4665905A (en) * 1986-06-09 1987-05-19 Brown Charles S Dynamic elbow and knee extension brace
US5171383A (en) * 1987-01-07 1992-12-15 Terumo Kabushiki Kaisha Method of manufacturing a differentially heat treated catheter guide wire
US4969890A (en) * 1987-07-10 1990-11-13 Nippon Zeon Co., Ltd. Catheter
US4984581A (en) * 1988-10-12 1991-01-15 Flexmedics Corporation Flexible guide having two-way shape memory alloy
US5069226A (en) * 1989-04-28 1991-12-03 Tokin Corporation Catheter guidewire with pseudo elastic shape memory alloy
US6069814A (en) * 1989-05-26 2000-05-30 Texas Instruments Incorporated Multiple input buffers for address bits
US4991602A (en) * 1989-06-27 1991-02-12 Flexmedics Corporation Flexible guide wire with safety tip
US5095915A (en) * 1990-03-19 1992-03-17 Target Therapeutics Guidewire with flexible distal tip
US6019736A (en) * 1995-11-06 2000-02-01 Francisco J. Avellanet Guidewire for catheter
US5769816A (en) * 1995-11-07 1998-06-23 Embol-X, Inc. Cannula with associated filter
US5695519A (en) * 1995-11-30 1997-12-09 American Biomed, Inc. Percutaneous filter for carotid angioplasty
US5895399A (en) * 1996-07-17 1999-04-20 Embol-X Inc. Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries
US5876367A (en) * 1996-12-05 1999-03-02 Embol-X, Inc. Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries
US6074357A (en) * 1996-12-05 2000-06-13 Embol-X, Inc. Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries
US5827324A (en) * 1997-03-06 1998-10-27 Scimed Life Systems, Inc. Distal protection device
US6053932A (en) * 1997-03-06 2000-04-25 Scimed Life Systems, Inc. Distal protection device
US6068623A (en) * 1997-03-06 2000-05-30 Percusurge, Inc. Hollow medical wires and methods of constructing same
US5814064A (en) * 1997-03-06 1998-09-29 Scimed Life Systems, Inc. Distal protection device
US6001118A (en) * 1997-03-06 1999-12-14 Scimed Life Systems, Inc. Distal protection device and method
US6191365B1 (en) * 1997-05-02 2001-02-20 General Science And Technology Corp Medical devices incorporating at least one element made from a plurality of twisted and drawn wires
US5911734A (en) * 1997-05-08 1999-06-15 Embol-X, Inc. Percutaneous catheter and guidewire having filter and medical device deployment capabilities
US5910154A (en) * 1997-05-08 1999-06-08 Embol-X, Inc. Percutaneous catheter and guidewire having filter and medical device deployment
US6152946A (en) * 1998-03-05 2000-11-28 Scimed Life Systems, Inc. Distal protection device and method
US6179859B1 (en) * 1999-07-16 2001-01-30 Baff Llc Emboli filtration system and methods of use
US6179861B1 (en) * 1999-07-30 2001-01-30 Incept Llc Vascular device having one or more articulation regions and methods of use
US6203561B1 (en) * 1999-07-30 2001-03-20 Incept Llc Integrated vascular device having thrombectomy element and vascular filter and methods of use
US6171328B1 (en) * 1999-11-09 2001-01-09 Embol-X, Inc. Intravascular catheter filter with interlocking petal design and methods of use
US6558405B1 (en) * 2000-08-29 2003-05-06 Advanced Cardiovascular Systems, Inc. Embolic filter
US20020183783A1 (en) * 2001-06-04 2002-12-05 Shadduck John H. Guidewire for capturing emboli in endovascular interventions
US6656203B2 (en) * 2001-07-18 2003-12-02 Cordis Corporation Integral vascular filter system

Cited By (192)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050228437A1 (en) * 1997-11-07 2005-10-13 Salviac Limited Embolic protection system
US7901427B2 (en) 1997-11-07 2011-03-08 Salviac Limited Filter element with retractable guidewire tip
US20030032977A1 (en) * 1997-11-07 2003-02-13 Salviac Limited Filter element with retractable guidewire tip
US8852226B2 (en) 1997-11-07 2014-10-07 Salviac Limited Vascular device for use during an interventional procedure
US8603131B2 (en) 1997-11-07 2013-12-10 Salviac Limited Embolic protection device
US20070106322A1 (en) * 1997-11-07 2007-05-10 Salviac Limited Embolic protection device
US7842066B2 (en) 1997-11-07 2010-11-30 Salviac Limited Embolic protection system
US20030187474A1 (en) * 1997-11-07 2003-10-02 Martin Keegan Embolic protection system
US8430901B2 (en) 1997-11-07 2013-04-30 Salviac Limited Embolic protection device
US8328842B2 (en) 1997-11-07 2012-12-11 Salviac Limited Filter element with retractable guidewire tip
US20040039411A1 (en) * 1997-11-07 2004-02-26 Paul Gilson Embolic protection device
US8241319B2 (en) 1997-11-07 2012-08-14 Salviac Limited Embolic protection system
US8226678B2 (en) 1997-11-07 2012-07-24 Salviac Limited Embolic protection device
US20040073198A1 (en) * 1997-11-07 2004-04-15 Salviac Limited Embolic protection device
US8221448B2 (en) 1997-11-07 2012-07-17 Salviac Limited Embolic protection device
US8216270B2 (en) 1997-11-07 2012-07-10 Salviac Limited Embolic protection device
US20070162069A1 (en) * 1997-11-07 2007-07-12 Salviac Limited Embolic protection device
US8123776B2 (en) 1997-11-07 2012-02-28 Salviac Limited Embolic protection system
US20040127934A1 (en) * 1997-11-07 2004-07-01 Salviac Limited Embolic protection system
US8057504B2 (en) 1997-11-07 2011-11-15 Salviac Limited Embolic protection device
US8052716B2 (en) 1997-11-07 2011-11-08 Salviac Limited Embolic protection system
US20070173883A1 (en) * 1997-11-07 2007-07-26 Martin Keegan Embolic protection system
US7972352B2 (en) 1997-11-07 2011-07-05 Salviac Limited Embolic protection system
US20110125182A1 (en) * 1997-11-07 2011-05-26 Salviac Limited Filter element with retractable guidewire tip
US7901426B2 (en) 1997-11-07 2011-03-08 Salviac Limited Embolic protection device
US20050234502A1 (en) * 1997-11-07 2005-10-20 Paul Gilson Embolic protection system
US20070123931A1 (en) * 1997-11-07 2007-05-31 Salviac Limited Embolic protection system
US7846176B2 (en) 1997-11-07 2010-12-07 Salviac Limited Embolic protection system
US20110054516A1 (en) * 1997-11-07 2011-03-03 Salviac Limited Embolic protection method
US20070233181A1 (en) * 1997-11-07 2007-10-04 Abbott Laboratories Embolic protection device
US20030009189A1 (en) * 1997-11-07 2003-01-09 Salviac Limited Embolic protection device
US20050283184A1 (en) * 1997-11-07 2005-12-22 Salviac Limited Embolic protection device
US20060004403A1 (en) * 1997-11-07 2006-01-05 Salviac Limited Embolic protection system
US20060074446A1 (en) * 1997-11-07 2006-04-06 Paul Gilson Embolic protection system
US20060089663A1 (en) * 1997-11-07 2006-04-27 Salviac Limited Embolic protection device
US7842063B2 (en) 1997-11-07 2010-11-30 Salviac Limited Embolic protection device
US20070239200A1 (en) * 1997-11-07 2007-10-11 Abbott Laboratories Embolic protection device
US20070244505A1 (en) * 1997-11-07 2007-10-18 Abbott Laboratories Embolic protection device
US20060129182A1 (en) * 1997-11-07 2006-06-15 Salviac Limited Embolic protection device
US7837701B2 (en) 1997-11-07 2010-11-23 Salviac Limited Embolic protection device
US7833242B2 (en) 1997-11-07 2010-11-16 Salviac Limited Embolic protection device
US20070250107A1 (en) * 1997-11-07 2007-10-25 Salviac Limited Embolic protection system
US7785342B2 (en) 1997-11-07 2010-08-31 Salviac Limited Embolic protection device
US7780697B2 (en) 1997-11-07 2010-08-24 Salviac Limited Embolic protection system
US20060259069A1 (en) * 1997-11-07 2006-11-16 Salviac Limited Embolic protection device
US7662165B2 (en) 1997-11-07 2010-02-16 Salviac Limited Embolic protection device
US20070282369A1 (en) * 1997-11-07 2007-12-06 Salviac Limited Embolic protection device
US20080188884A1 (en) * 1997-11-07 2008-08-07 Salviac Limited Embolic protection device
US20060293704A1 (en) * 1997-11-07 2006-12-28 Salviac Limited Embolic protection device
US20070005096A1 (en) * 1997-11-07 2007-01-04 Salviac Limited Embolic protection system
US20080167677A1 (en) * 1999-05-07 2008-07-10 Salviac Limited Filter element for embolic protection device
US20090149881A1 (en) * 1999-05-07 2009-06-11 Salviac Limited Filter element for embolic protection device
US7799051B2 (en) 1999-05-07 2010-09-21 Salviac Limited Support frame for an embolic protection device
US20060122645A1 (en) * 1999-05-07 2006-06-08 Salviac Limited Support frame for an embolic protection device
US20060122644A1 (en) * 1999-05-07 2006-06-08 Salviac Limited Support frame for an embolic protection device
US20030144687A1 (en) * 1999-05-07 2003-07-31 Salviac Limited Support frame for an embolic protection device
US8002790B2 (en) 1999-05-07 2011-08-23 Salviac Limited Support frame for an embolic protection device
US20020107541A1 (en) * 1999-05-07 2002-08-08 Salviac Limited. Filter element for embolic protection device
US20030144688A1 (en) * 1999-05-07 2003-07-31 Salviac Limited Support frame for an embolic protection device
US8137377B2 (en) 1999-12-23 2012-03-20 Abbott Laboratories Embolic basket
US20040068288A1 (en) * 1999-12-23 2004-04-08 Olin Palmer Intravascular device and system
US20080275498A1 (en) * 1999-12-23 2008-11-06 Endosvascular Technologies, Inc. Embolic basket
US8142442B2 (en) 1999-12-23 2012-03-27 Abbott Laboratories Snare
US7780694B2 (en) 1999-12-23 2010-08-24 Advanced Cardiovascular Systems, Inc. Intravascular device and system
US20110004238A1 (en) * 1999-12-23 2011-01-06 Abbott Laboratories Intravascular device and system
US8845583B2 (en) 1999-12-30 2014-09-30 Abbott Cardiovascular Systems Inc. Embolic protection devices
US7918820B2 (en) 1999-12-30 2011-04-05 Advanced Cardiovascular Systems, Inc. Device for, and method of, blocking emboli in vessels such as blood arteries
US20030212361A1 (en) * 1999-12-30 2003-11-13 Boyle William J. Embolic protection devices
US20040167568A1 (en) * 1999-12-30 2004-08-26 Boyle William J. Embolic protection devices
US20100004674A1 (en) * 1999-12-30 2010-01-07 Advanced Cardiovascular Systems, Inc. Device for, and method of, blocking emboli in vessels such as blood arteries
US20090254118A1 (en) * 2000-07-13 2009-10-08 Advanced Cardiovascular Systems, Inc. Embolic protection guide wire
US8177791B2 (en) 2000-07-13 2012-05-15 Abbott Cardiovascular Systems Inc. Embolic protection guide wire
US20090030445A1 (en) * 2000-10-17 2009-01-29 Advanced Cardiovascular Systems, Inc. Delivery sysems for embolic filter devices
US20080215084A1 (en) * 2000-10-17 2008-09-04 Advanced Cardiovascular Systems, Inc. Delivery systems for embolic filter devices
US20050222583A1 (en) * 2000-11-09 2005-10-06 Cano Gerald G Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire
US20090228036A1 (en) * 2000-11-09 2009-09-10 Advanced Cardiovascular Systems, Inc. Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire
US20100121374A1 (en) * 2000-12-19 2010-05-13 Advanced Cardiovascular Systems, Inc. Sheathless embolic protection system
US7662166B2 (en) 2000-12-19 2010-02-16 Advanced Cardiocascular Systems, Inc. Sheathless embolic protection system
US7931666B2 (en) 2000-12-19 2011-04-26 Advanced Cardiovascular Systems, Inc. Sheathless embolic protection system
US20040167567A1 (en) * 2001-03-23 2004-08-26 Cano Gerald G. Method and apparatus for capturing objects beyond an operative site in medical procedures
US20040088002A1 (en) * 2001-04-30 2004-05-06 Boyle William J. Deployment and recovery control systems for embolic protection devices
US20050228439A1 (en) * 2001-06-01 2005-10-13 Andrews Christopher C Delivery and recovery system for embolic protection system
US7959646B2 (en) * 2001-06-29 2011-06-14 Abbott Cardiovascular Systems Inc. Filter device for embolic protection systems
US20070276429A1 (en) * 2001-06-29 2007-11-29 Advanced Cardiovascular Systems, Inc. Filter device for embolic protection systems
US8016854B2 (en) 2001-06-29 2011-09-13 Abbott Cardiovascular Systems Inc. Variable thickness embolic filtering devices and methods of manufacturing the same
US20100049305A1 (en) * 2001-08-13 2010-02-25 Advanced Cardiovascular Systems, Inc. Convertible delivery systems for medical devices
US20030032941A1 (en) * 2001-08-13 2003-02-13 Boyle William J. Convertible delivery systems for medical devices
US7959647B2 (en) 2001-08-30 2011-06-14 Abbott Cardiovascular Systems Inc. Self furling umbrella frame for carotid filter
US7842064B2 (en) 2001-08-31 2010-11-30 Advanced Cardiovascular Systems, Inc. Hinged short cage for an embolic protection device
US8262689B2 (en) 2001-09-28 2012-09-11 Advanced Cardiovascular Systems, Inc. Embolic filtering devices
US20050075663A1 (en) * 2001-11-27 2005-04-07 Boyle William J. Offset proximal cage for embolic filtering devices
US20070233180A1 (en) * 2001-12-21 2007-10-04 Abbott Laboratories Support frame for an embolic protection device
US20070233179A1 (en) * 2001-12-21 2007-10-04 Abbott Laboratories Support frame for an embolic protection device
US20030130684A1 (en) * 2001-12-21 2003-07-10 Eamon Brady Support frame for an embolic protection device
US8114115B2 (en) 2001-12-21 2012-02-14 Salviac Limited Support frame for an embolic protection device
US7972356B2 (en) 2001-12-21 2011-07-05 Abbott Cardiovascular Systems, Inc. Flexible and conformable embolic filtering devices
US7927349B2 (en) 2001-12-21 2011-04-19 Salviac Limited Support frame for an embolic protection device
US20030212429A1 (en) * 2002-03-05 2003-11-13 Martin Keegan Embolic protection system
US20070060946A1 (en) * 2002-03-05 2007-03-15 Salviac Limited Embolic protection system
US20070244504A1 (en) * 2002-03-05 2007-10-18 Salviac Limited Embolic protection system
US20100004673A1 (en) * 2002-06-26 2010-01-07 Advanced Cardiovascular Systems, Inc. Embolic filtering devices for bifurcated vessels
US8029530B2 (en) 2002-09-30 2011-10-04 Abbott Cardiovascular Systems Inc. Guide wire with embolic filtering attachment
US20040064099A1 (en) * 2002-09-30 2004-04-01 Chiu Jessica G. Intraluminal needle injection substance delivery system with filtering capability
US20040093009A1 (en) * 2002-09-30 2004-05-13 Denison Andy E. Embolic filtering devices
US20110029008A1 (en) * 2002-09-30 2011-02-03 Advanced Cardiovascular Systems, Inc. Guide wire with embolic filtering attachment
US7815660B2 (en) 2002-09-30 2010-10-19 Advanced Cardivascular Systems, Inc. Guide wire with embolic filtering attachment
US7976560B2 (en) 2002-09-30 2011-07-12 Abbott Cardiovascular Systems Inc. Embolic filtering devices
US20040093010A1 (en) * 2002-09-30 2004-05-13 Gesswein Douglas H. Guide wire with embolic filtering attachment
US7678131B2 (en) 2002-10-31 2010-03-16 Advanced Cardiovascular Systems, Inc. Single-wire expandable cages for embolic filtering devices
US20040088000A1 (en) * 2002-10-31 2004-05-06 Muller Paul F. Single-wire expandable cages for embolic filtering devices
US20070149997A1 (en) * 2002-10-31 2007-06-28 Muller Paul F Single-wire expandable cages for embolic filtering devices
US20040172055A1 (en) * 2003-02-27 2004-09-02 Huter Scott J. Embolic filtering devices
US8591540B2 (en) 2003-02-27 2013-11-26 Abbott Cardiovascular Systems Inc. Embolic filtering devices
US20050004595A1 (en) * 2003-02-27 2005-01-06 Boyle William J. Embolic filtering devices
US7892251B1 (en) 2003-11-12 2011-02-22 Advanced Cardiovascular Systems, Inc. Component for delivering and locking a medical device to a guide wire
US8998973B2 (en) 2004-03-02 2015-04-07 Boston Scientific Scimed, Inc. Medical devices including metallic films
US20050197690A1 (en) * 2004-03-02 2005-09-08 Masoud Molaei Medical devices including metallic films and methods for making same
US8591568B2 (en) 2004-03-02 2013-11-26 Boston Scientific Scimed, Inc. Medical devices including metallic films and methods for making same
US20050197687A1 (en) * 2004-03-02 2005-09-08 Masoud Molaei Medical devices including metallic films and methods for making same
US20050197689A1 (en) * 2004-03-02 2005-09-08 Masoud Molaei Medical devices including metallic films and methods for making same
US8308753B2 (en) 2004-03-19 2012-11-13 Advanced Cardiovascular Systems, Inc. Locking component for an embolic filter assembly
US20070162071A1 (en) * 2004-03-19 2007-07-12 Burkett David H Locking component for an embolic filter assembly
US7879065B2 (en) 2004-03-19 2011-02-01 Advanced Cardiovascular Systems, Inc. Locking component for an embolic filter assembly
US20100152769A1 (en) * 2004-03-19 2010-06-17 Advanced Cardiovascular Systems, Inc. Locking component for an embolic filter assembly
US7678129B1 (en) 2004-03-19 2010-03-16 Advanced Cardiovascular Systems, Inc. Locking component for an embolic filter assembly
US20060100659A1 (en) * 2004-09-17 2006-05-11 Dinh Minh Q Shape memory thin film embolic protection device with frame
US20070191877A1 (en) * 2004-09-17 2007-08-16 Dinh Minh Q Shape memory thin film embolic protection device
US8795315B2 (en) 2004-10-06 2014-08-05 Cook Medical Technologies Llc Emboli capturing device having a coil and method for capturing emboli
US20110098738A1 (en) * 2004-10-06 2011-04-28 James B Hunt Emboli capturing device having a coil and method for capturing emboli
US20060142845A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for making same
US20060142842A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for making same
US20110144740A1 (en) * 2004-12-29 2011-06-16 Boston Scientific Scimed, Inc. Medical Devices Including Metallic Film and at Least One Filament
US20060142838A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for loading and deploying same
US8864815B2 (en) 2004-12-29 2014-10-21 Boston Scientific Scimed, Inc. Medical devices including metallic film and at least one filament
US7901447B2 (en) * 2004-12-29 2011-03-08 Boston Scientific Scimed, Inc. Medical devices including a metallic film and at least one filament
US8992592B2 (en) 2004-12-29 2015-03-31 Boston Scientific Scimed, Inc. Medical devices including metallic films
US20060142851A1 (en) * 2004-12-29 2006-06-29 Masoud Molaei Medical devices including metallic films and methods for making same
US8632580B2 (en) 2004-12-29 2014-01-21 Boston Scientific Scimed, Inc. Flexible medical devices including metallic films
US8221446B2 (en) 2005-03-15 2012-07-17 Cook Medical Technologies Embolic protection device
US8945169B2 (en) 2005-03-15 2015-02-03 Cook Medical Technologies Llc Embolic protection device
US20060229638A1 (en) * 2005-03-29 2006-10-12 Abrams Robert M Articulating retrieval device
US9259305B2 (en) 2005-03-31 2016-02-16 Abbott Cardiovascular Systems Inc. Guide wire locking mechanism for rapid exchange and other catheter systems
US20060259132A1 (en) * 2005-05-02 2006-11-16 Cook Incorporated Vascular stent for embolic protection
US20060259131A1 (en) * 2005-05-16 2006-11-16 Masoud Molaei Medical devices including metallic films and methods for making same
US7854760B2 (en) 2005-05-16 2010-12-21 Boston Scientific Scimed, Inc. Medical devices including metallic films
US8152841B2 (en) 2005-05-16 2012-04-10 Boston Scientific Scimed, Inc. Medical devices including metallic films
US20100204784A1 (en) * 2005-05-16 2010-08-12 Boston Scientific Scimed, Inc. Medical devices including metallic films
US8109962B2 (en) 2005-06-20 2012-02-07 Cook Medical Technologies Llc Retrievable device having a reticulation portion with staggered struts
US20060287670A1 (en) * 2005-06-20 2006-12-21 Cook Incorporated Embolic protection device having a reticulated body with staggered struts
US7850708B2 (en) 2005-06-20 2010-12-14 Cook Incorporated Embolic protection device having a reticulated body with staggered struts
US8845677B2 (en) 2005-06-20 2014-09-30 Cook Medical Technologies Llc Retrievable device having a reticulation portion with staggered struts
US7771452B2 (en) 2005-07-12 2010-08-10 Cook Incorporated Embolic protection device with a filter bag that disengages from a basket
US7766934B2 (en) 2005-07-12 2010-08-03 Cook Incorporated Embolic protection device with an integral basket and bag
US7867247B2 (en) 2005-07-12 2011-01-11 Cook Incorporated Methods for embolic protection during treatment of a stenotic lesion in a body vessel
US20070016246A1 (en) * 2005-07-12 2007-01-18 Cook Incorporated Embolic protection device with an integral basket and bag
US20070016245A1 (en) * 2005-07-12 2007-01-18 Cook Incorporated Embolic protection device with a filter bag that disengages from a basket
US20070038241A1 (en) * 2005-08-04 2007-02-15 Cook Incorporated Embolic protection device having inflatable frame
US8187298B2 (en) 2005-08-04 2012-05-29 Cook Medical Technologies Llc Embolic protection device having inflatable frame
US8377092B2 (en) 2005-09-16 2013-02-19 Cook Medical Technologies Llc Embolic protection device
US20070088383A1 (en) * 2005-10-03 2007-04-19 Cook Incorporated Embolic protection device
US8632562B2 (en) 2005-10-03 2014-01-21 Cook Medical Technologies Llc Embolic protection device
US20070078481A1 (en) * 2005-10-04 2007-04-05 Cook Incorporated Embolic protection device
US8182508B2 (en) 2005-10-04 2012-05-22 Cook Medical Technologies Llc Embolic protection device
US20070088382A1 (en) * 2005-10-13 2007-04-19 Bei Nianjiong J Embolic protection recovery catheter assembly
US8252017B2 (en) 2005-10-18 2012-08-28 Cook Medical Technologies Llc Invertible filter for embolic protection
US20070112374A1 (en) * 2005-10-18 2007-05-17 Cook Incorporated Invertible filter for embolic protection
US8216269B2 (en) 2005-11-02 2012-07-10 Cook Medical Technologies Llc Embolic protection device having reduced profile
US20070100372A1 (en) * 2005-11-02 2007-05-03 Cook Incorporated Embolic protection device having a filter
US8152831B2 (en) 2005-11-17 2012-04-10 Cook Medical Technologies Llc Foam embolic protection device
US20070118173A1 (en) * 2005-11-17 2007-05-24 Cook Incorporated Foam embolic protection device
US20080071307A1 (en) * 2006-09-19 2008-03-20 Cook Incorporated Apparatus and methods for in situ embolic protection
US9907639B2 (en) 2006-09-19 2018-03-06 Cook Medical Technologies Llc Apparatus and methods for in situ embolic protection
US11672640B2 (en) 2007-01-31 2023-06-13 Stanley Batiste Thrombectomy filter and method for performing a thrombectomy
US11547545B2 (en) 2007-01-31 2023-01-10 Stanley Batiste Infusion filter and method for performing thrombolysis
US20150335415A1 (en) * 2007-01-31 2015-11-26 Stanley Batiste Intravenous filter with guidewire and catheter access guide
US9901434B2 (en) 2007-02-27 2018-02-27 Cook Medical Technologies Llc Embolic protection device including a Z-stent waist band
US8216209B2 (en) 2007-05-31 2012-07-10 Abbott Cardiovascular Systems Inc. Method and apparatus for delivering an agent to a kidney
US7867273B2 (en) 2007-06-27 2011-01-11 Abbott Laboratories Endoprostheses for peripheral arteries and other body vessels
US20090076539A1 (en) * 2007-09-14 2009-03-19 Cook Incorporated Helical thrombus removal device
US8419748B2 (en) 2007-09-14 2013-04-16 Cook Medical Technologies Llc Helical thrombus removal device
US9138307B2 (en) 2007-09-14 2015-09-22 Cook Medical Technologies Llc Expandable device for treatment of a stricture in a body vessel
US8252018B2 (en) 2007-09-14 2012-08-28 Cook Medical Technologies Llc Helical embolic protection device
US9398946B2 (en) 2007-09-14 2016-07-26 Cook Medical Technologies Llc Expandable device for treatment of a stricture in a body vessel
US20090076538A1 (en) * 2007-09-14 2009-03-19 Cook Incorporated Helical embolic protection device
US8657849B2 (en) 2008-12-29 2014-02-25 Cook Medical Technologies Llc Embolic protection device and method of use
US8388644B2 (en) 2008-12-29 2013-03-05 Cook Medical Technologies Llc Embolic protection device and method of use
US20100168785A1 (en) * 2008-12-29 2010-07-01 Cook Incorporated Embolic protection device and method of use
US20100211094A1 (en) * 2009-02-18 2010-08-19 Cook Incorporated Umbrella distal embolic protection device
US20100274277A1 (en) * 2009-04-27 2010-10-28 Cook Incorporated Embolic protection device with maximized flow-through
US20120053596A1 (en) * 2010-09-01 2012-03-01 Charles Samuel Squire Gordon Medical snare device
US8852204B2 (en) * 2010-09-01 2014-10-07 Merit Medical Systems, Inc. Medical snare device
CN116942255A (en) * 2023-09-18 2023-10-27 北京华脉泰科医疗器械股份有限公司 Thrombus removing device

Also Published As

Publication number Publication date
US6656203B2 (en) 2003-12-02
EP1277447A2 (en) 2003-01-22
US20030015206A1 (en) 2003-01-23
EP1277447A3 (en) 2003-11-26

Similar Documents

Publication Publication Date Title
US20030018354A1 (en) Integral vascular filter system with core wire activation
US6428559B1 (en) Removable, variable-diameter vascular filter system
US6596011B2 (en) Emboli extraction catheter and vascular filter system
US20030060843A1 (en) Vascular filter system with encapsulated filter
AU2003201279B2 (en) Low profile vascular filter system
US6214026B1 (en) Delivery system for a vascular device with articulation region
CA2415978C (en) Releasable and retrievable vascular filter system
US6616679B1 (en) Rapid exchange vascular device for emboli and thrombus removal and methods of use
JP5090167B2 (en) Shape memory thin film embolism prevention device with frame
US6168604B1 (en) Guide wire device for removing solid objects from body canals
US6530939B1 (en) Vascular device having articulation region and methods of use
EP1854428B1 (en) Device to create proximal stasis
US6589263B1 (en) Vascular device having one or more articulation regions and methods of use
US20040010282A1 (en) Catheter with occluding cuff
US20090228036A1 (en) Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire
JP2002537943A (en) Minimally invasive medical device placement and retrieval system
US20060282114A1 (en) Embolic protection apparatus with vasodilator coating
EP1858437B1 (en) Shape memory thin film embolic protection device
US20220192689A1 (en) Lesion Crossing Device with Embolic Protection

Legal Events

Date Code Title Description
AS Assignment

Owner name: CORDIS CORPORATION, FLORIDA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROTH, NOAH M.;JOHNSON, KIRK;WILSON, DAVID;AND OTHERS;REEL/FRAME:013251/0951;SIGNING DATES FROM 20020624 TO 20020806

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION