|Publication number||USRE36702 E|
|Application number||US 09/282,473|
|Publication date||16 May 2000|
|Filing date||30 Mar 1999|
|Priority date||14 Jul 1993|
|Also published as||CA2126150A1, CA2126150C, DE69413765D1, DE69413765T2, EP0638290A1, EP0638290B1, US5720759|
|Publication number||09282473, 282473, US RE36702 E, US RE36702E, US-E-RE36702, USRE36702 E, USRE36702E|
|Inventors||David T. Green, Salvatore Castro|
|Original Assignee||United States Surgical Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (99), Referenced by (90), Classifications (10), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This is a continuation of application Ser. No. 08/317,416, filed on Oct. 3, 1994 which is a continuation of application Ser. No. 08/091,794, filed Jul. 14, 1993, both of which are abandoned.
1. Field of the Invention
This invention relates to seal systems which are adapted to allow the introduction of surgical instrumentation into a patient's body. In particular, the invention is applicable to a cannula assembly wherein a cannula housing includes or is adapted to receive a seal assembly to sealingly accommodate instruments of different diameters inserted through the seal assembly and cannula.
2. Description of the Related Art
In laparoscopic procedures surgery is performed in the interior of the abdomen through a small incision; in endoscopic procedures surgery is performed in any hollow viscus of the body through narrow tubes or cannula inserted through a small entrance incision in the skin. Laparoscopic and endoscopic procedures generally require that any instrumentation inserted into the body be sealed, i.e. provisions must be made to ensure that gases do not enter or exit the body through the incision as, for example, in surgical procedures in which the surgical region is insufflated. Moreover, laparoscopic and endoscopic procedures often require the surgeon to act on organs, tissues, and vessels far removed from the incision, thereby requiring that any instruments used in such procedures be relatively long and narrow.
For such procedures, the introduction of a tube into certain anatomical cavities such as the abdominal cavity is usually accomplished by use of a trocar assembly comprised of a cannula assembly and an obturator assembly. Since the cannula assembly provides a direct passage for surgical instrumentation from outside the patient's body to access internal organs and tissue, it is important that the cannula assembly maintain a relatively gas-tight interface between the abdominal cavity and the outside atmosphere. The cannula assembly thus generally includes a cannula attached to a cannula housing containing a seal assembly adapted to maintain a seal across the opening of the cannula housing.
Since surgical procedures in the abdominal cavity of the body require insufflating gases to raise the cavity wall away from vital organs, the procedure is usually initiated by use of a Verres needle through which a gas such as CO2 is introduced into the body cavity, thereby creating a pneumoperitoneum. Thereafter, the pointed obturator of the obturator assembly is inserted into the cannula assembly and used to puncture the abdominal wall. The gas provides a positive pressure which raises the inner body wall away from internal organs, thereby providing the surgeon with a region within which to operate and avoiding unnecessary contact with the organs by the instruments inserted through the cannula assembly. Following removal of the obturator assembly from the cannula assembly, laparoscopic or endoscopic surgical instruments may be inserted through the cannula assembly to perform surgery within the abdominal cavity.
Without the obturator assembly to block the flow of insufflation gas out from the cavity, other structure must be provided to maintain a relatively fluid-tight interface between the abdominal cavity and the outside atmosphere. Generally in the context of insufflatory surgical procedures, there are two sealing requirements for cannula assemblies. The first requirement is to provide a substantially fluid-tight seal when an instrument is not being introduced into or is not already present in the cannula. The second requirement is to provide a substantially fluid-tight seal when an instrument is being introduced into or is already present in the cannula. Additionally, as endoscopic and laparoscopic surgical procedures and techniques have advanced, it has become desirable to accommodate surgical instrumentation of varying outside diameters through a single cannula assembly in a given surgical procedure, thereby minimizing the number of cannulae required and facilitating efficiency in the surgical procedure.
To meet the first sealing requirement, various seals have been provided for maintaining the pneumoperitoneum in the cavity when no trocar or other surgical instrument is present in the cannula. For example, a pivotally mounted flapper valve may be provided which pivots open upon insertion of an instrument and pivots closed, under a spring bias, once the instrument is removed. Conventional flapper valves may also be manually opened by pivoting a lever provided on the exterior of the housing. An example of such a flapper valve is disclosed in U.S. Pat. No. 4,943,280 to Lander. Trumpet valves are also well known for use in sealing a cannula assembly in the absence of a surgical instrument.
U.S. Pat. No. 4,655,752 to Honkanen et al. discloses a cannula including a housing and first and second seal members. The first seal member is conically tapered towards the bottom of the housing and has a circular opening in its center, while the second seal member is cup-shaped. The second seal member includes at least one slit to allow for passage of instruments.
U.S. Pat. No. 4,929,235 to Merry et al. discloses a self-sealing catheter introducer having a sealing mechanism to prevent blood or fluid leakage that includes a planar sealing element having a slit, and a conical sealing element distal of said planar sealing element so that if the distal conical sealing element is moved distally it rests upon the planar sealing element, each sealing element being adapted to surround a tube.
U.S. Pat. Nos. 4,874,377 and 5,064,416 to Newgard et al. relate to a self-occluding intravascular cannula assembly in which an elastomeric valving member is positioned transversely to a housing and is peripherally compressed to cause displacement, distortion and/or rheological flow of the elastomeric material. A frustoconical dilator projection is provided which cooperates with the elastomeric valving member in moving the valving member to a non-occluding position.
U.S. Pat. No. 5,104,3838 to Shichman relates to a trocar adapter seal which is adapted to be associated with a cannula assembly and which advantageously reduces the diameter of the cannula assembly to accommodate instruments of smaller diameter. The trocar adapter seal may be removed from the cannula assembly so that the cannula assembly may once again accommodate instruments of larger diameter. WO 93/04717 to Mueller et al. describes a similar trocar adapter seal system in which a pair of seal adapter plates are slidably mounted to the cannula housing and may be selectively positioned transverse the cannula housing aperture for accommodating surgical instrumentation therethrough.
Cannula assemblies have also been developed which are provided with a series of resilient sealing elements having a central aperture, e.g., commonly assigned, co-pending applications Ser. No. 07/874,291 filed Apr. 24, 1992 and Ser. No. 07/873,416 filed Apr. 24, 1992. Upon insertion of an instrument, the sealing elements resiliently receive the instrument, while maintaining a seal around the instrument across a range of instrument diameters, e.g., 5 to 12 mm. Upon withdrawal of the instrument, a fluid-tight seal is provided by the internal sealing elements.
Although attempts have been made to provide a seal assembly as part of or for use in conjunction with a cannula assembly which maintains the integrity of the seal between the body cavity and the atmosphere outside the patient's body, seal systems provided to date have failed to address the full range of surgeons' needs, especially when it is desired to utilize different instruments having different diameters therethrough.
The present invention provides a seal assembly which will allow a surgeon to efficaciously utilize instruments of varying diameter in a surgical procedure. The seal assembly of the invention obviates the need for multiple adapters to accommodate instruments of varying diameter by providing an apertured resilient seal member which is mounted in a gimbal-like assembly, thereby facilitating alignment of the instrument with the aperture of the seal member.
In accordance with the present invention, a seal assembly is provided which includes a housing that defines a concave ring-like track on its inner face. The seal assembly further includes a mounting member to which a resilient seal member is mounted. The mounting member has a convexly oriented arcuate outer wall that is configured and dimensioned to ride within the ring-like track. An axial cylindrical guide wall is preferably associated with the mounting member to guide surgical instruments into alignment with the aperture of the seal member. A limiter ring is also preferably associated with the housing to limit the range of motion of the mounting member relative to the housing. In a preferred embodiment, the limiter ring limits the angular motion of the mounting member to between 20 to 25 degrees relative to the axis of the housing. Internal structure may also be provided within the housing to ensure a fluid tight seal distal to the resilient seal member, e.g., a flexible bellows member.
The resilient seal member of the invention is configured and dimensioned to provide a fluid-tight seal with instruments of varying diameter. In one embodiment, the resilient seal member is cone shaped and includes an aperture of approximately 4 mm diameter. The resilience of the material from which the seal member is fabricated, e.g., polyisoprene, allows the aperture to expand or stretch to accommodate instruments of greater diameter, e.g., up to 12 mm in diameter. Structure may also be provided adjacent the proximal side of the conical seal member, e.g., multi-lobed seal protector elements, to protect the resilient seal member from puncture or laceration as a surgical instrument aligns itself with the central aperture.
Preferably, the seal assembly of the invention is adapted to be associated with a cannula assembly. The cannula assembly typically includes a tubular cannula and a cannula housing within which is positioned a cannula seal assembly. The seal cannula assembly typically provides structure which is adapted to provide a fluid-tight seal in the absence of a surgical instrument. Suitable cannula seal assemblies include a spring loaded flapper valve, a trumpet valve, a duck bill valve, or the like. The seal assembly of the invention may be associated with the cannula housing by any suitable means, e.g., a bayonnet lock.
In use, the seal assembly of the invention may be associated with a cannula assembly at any point the surgeon desires flexibility in the instrument sizes he may utilize therethrough. Thus, for example, if the surgeon is utilizing a 12 mm cannula assembly in an endoscopic surgical procedure and determines that it would be advantageous to have the flexibility to use instruments ranging in size from 4 to 12 mm through that cannula assembly, the seal assembly of the invention may be secured to the cannula assembly. Thereafter, instruments ranging in diameter from 4 to 12 mm may be efficaciously introduced therethrough. The cylindrical guide wall guides the instrument toward the aperture of the resilient seal member. The mounting member rides within the ring-like track, angularly repositioning itself with respect to the housing in response to force exerted thereon by the instrument contacting a wall thereof.
The movement of the mounting member relative to the housing which is accommodated by the gimbal-like structure of the present invention also facilitates seal maintenance once an instrument is being used within the body cavity. In particular, as an instrument is manipulated, the resilient seal member transversely repositions itself through movement of the mounting member relative to the housing, thereby ensuring that the resilient seal member maintains a fluid-tight seal around the instrument shaft.
The foregoing features of the present invention will become more readily apparent and will be better understood by referring to the following detailed description of preferred embodiments of the invention, which are described hereinbelow with reference to the drawings wherein:
FIG. 1 is a side view, partially in section, of a seal assembly of the present invention mounted to a cannula assembly;
FIG. 2 is a side view of the assembly of FIG. 1 with the mounting member and associated structure in a second position; and
FIG. 3 is a sectional side view of a portion of the seal assembly of the invention.
The present invention contemplates the use of all types of endoscopic and laparoscopic surgical instruments therethrough including, but not limited to, clip appliers, surgical staplers, lasers, endoscopes, laparoscopes, forceps, photographic devices, graspers, dissectors, suturing devices, scissors, and the like. All of such devices are referred to herein as "instruments".
The seal assembly of the present invention, either alone or in combination with a seal system internal to a cannula assembly, provides a substantial seal between a body cavity of a patient and the outside atmosphere before, during and after insertion of an instrument through the cannula assembly. Moreover, the seal assembly of the present invention is capable of accommodating instruments of varying diameters, e.g., from 5 mm to 15 mm, by providing a gas tight seal with each instrument when inserted. The flexibility of the present seal assembly greatly facilitates endoscopic surgery where a variety of instruments having differing diameters are often needed during a single surgical procedure.
Referring to the drawings, in which like reference numerals identify identical or similar parts, FIGS. 1 and 2 illustrate seal assembly 10 mounted to cannula assembly 12. Cannula assembly 12 includes a cannula 14 and a cannula housing 16. Within cannula housing 16 is a distally directed duck bill valve 18 which tapers inward to a sealed configuration, as shown. The diameter of cannula 14 may vary, but typically ranges from 10 to 15 mm for use with the seal assembly 10 of the present invention.
Seal assembly 10 includes a housing 20 which defines an internal passage 22. Housing 20 typically has a substantially cylindrical configuration. A cylindrical guide wall 24 is positioned within passage and is mounted to mounting member 25. Guide wall 24 is fabricated from a rigid plastic material, e.g., ABS, and functions to guide an instrument inserted into passage 22 into alignment with an aperture 26 formed in conical seal member 28 (see FIG. 3). Seal member 28 is fabricated from a resilient material, e.g., polyisoprene or natural rubber, and aperture 26 is adapted to stretch to sealingly engage instruments of varying diameter, e.g., from 4 to 12 mm.
Mounting member 25 is fabricated from a rigid plastic, e.g., lexan, and has a convexly oriented arcuate outer wall 30 that is adapted to cooperate with a concave ring-like track 32 formed on an inner face of housing 20. The arcuate outer wall 30 of mounting member 25 is adapted to rotate within the corresponding ring-like track 32 of housing 20. Although the mounting member 25 is free to rotate around the longitudinal axis A of cannula assembly 12, the rotation of mounting member 25 relative to housing 20 which is of importance to the present invention is the rotation of mounting member 25 relative to the axis transverse to the longitudinal axis A. This rotation may be measured as an angle relative to the longitudinal axis of cannula assembly, as designated by angle "D" in FIG. 2. A lubricant may be provided between outer wall 30 and track 32 to facilitate such rotation. A limiter ring 34 is formed on housing 20 to limit the freedom of movement of mounting member 25 with respect to housing 20. Preferably, limiter ring 34 limits the rotation of mounting member 25 relative to housing 20 to an angular orientation, designated by "D" in FIG. 2, of up to about 25 degrees.
A bellows structure 36 is mounted to and extends distally from mounting member 25. Bellows 36 is fabricated from a resilient material, e.g., polyisoprene, and ensures a substantial fluid-tight seal within housing 20, regardless of the relative position of mounting member with respect to housing 20. A cylindrical protective wall 38 is provided interior of bellows structure 36 to protect bellows 36 from puncture or laceration as an instrument is inserted through housing 20, and to guide such instrument toward duckbill valve 18. As mounting member 25 rotates relative to housing 20, bellows 36 stretches at one side and compresses on the opposite side to accommodate such motion.
Seal assembly 10 may be joined to cannula assembly 12 in a variety of ways. In a preferred embodiment, housing 20 of seal assembly 10 and cannula housing 16 of cannula assembly 12 are adapted to detachably engage each other, e.g., through a bayonnet lock or like mechanical means. Other means of joining seal assembly 10 to cannula assembly 12 will be readily apparent to one of ordinary skill in the art.
Referring to FIG. 3, a seal protector 40 may be provided adjacent the proximal side of seal member 28. Seal protector 40 functions to prevent direct contact between the potentially sharp leading edge of a surgical instrument while facilitating the passage of the instrument through aperture 26. A preferred design for seal protector 40 includes a pair of members 40a, 40b having triangularly shaped sections 42 which define slits 44, the respective members 40a, 40b being positioned such that the slits 44 of the first member bisect the triangular sections 42 of the second member, and vice versa. The triangularly shaped sections 42 deflect and contact the seal member 28 as an instrument is passed therethrough, thereby protecting the seal member 28 from puncture/laceration. The seal protectors 40a, 40b described herein are described in more detail in copending, commonly assigned Ser. No. 07/950,205, the contents of which are hereby incorporated by reference.
In use, seal assembly 10 is mounted to cannula assembly 12. An instrument is inserted into seal assembly 10 through passage 22 and into cylindrical guide wall 24 in housing 20. If the axis of the instrument is not perfectly aligned with the axis A of the cannula assembly 12/seal assembly 10, then the surgical instrument will contact the interior of guide wall 24 and/or the wall of seal member 28. This contact causes mounting member 25 to rotate within housing 10, up to the angular limit of limiting ring 34, thereby bringing aperture 26 into alignment with the surgical instrument. The seal protector(s) 40 deflect as the instrument passes through seal member 28. Aperture 26 stretches to accommodate the instrument diameter, as necessary. The instrument passes further distally into the cannula housing 16, passing through duckbill valve 18 and cannula 14, into the body cavity. As the instrument passes distally, mounting member 25 is free to rotate further with respect to housing 20. In particular, if angle D is initially relatively large as the instrument passes through aperture 26, the angle D typically is typically reduced as the instrument passes further into the cannula 14 and/or body cavity. In addition, as the surgeon manipulates the instrument within the body cavity, mounting member 25 is free to rotate relative to housing 20, thereby allowing seal member 28 to maintain sealing engagement with the instrument passed therethrough.
While the invention has been particularly shown, and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various modifications and changes in form and detail may be made therein without departing from the scope and spirit of the invention. Accordingly, modifications such as those suggested above, but not limited thereto, are to be considered within the scope of the invention.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US729423 *||3 Nov 1900||26 May 1903||Eugen Scheiber||Compression stop-cock.|
|US2008340 *||26 Jul 1934||16 Jul 1935||Alceste Salvati Agustin||Surgical injection needle and the like|
|US2402306 *||7 Oct 1943||18 Jun 1946||Turkel Henry||Retaining guard guide for needles|
|US2797837 *||19 Apr 1954||2 Jul 1957||Buford Roberts Charles||Stopper for ampoules and the like|
|US3086797 *||13 Nov 1958||23 Apr 1963||Webb Ernest C||Coupling device|
|US3197173 *||12 Jul 1960||27 Jul 1965||John H Van Dyke||Pinch valve|
|US3288137 *||7 Jan 1964||29 Nov 1966||Douglas W Lund||Anchoring device|
|US3438607 *||28 Mar 1966||15 Apr 1969||Omark Air Controls Inc||Valve for evacuator|
|US3487837 *||6 Feb 1967||6 Jan 1970||Roy A Petersen||Device for holding catheters in position|
|US3568679 *||12 Nov 1968||9 Mar 1971||Dow Corning||Catheter placement unit|
|US3683911 *||13 Aug 1970||15 Aug 1972||Pelam Inc||Protective seal for catheter|
|US3766916 *||7 Jul 1972||23 Oct 1973||Deseret Pharma||Y stylet catheter placement assembly|
|US3811440 *||9 Aug 1971||21 May 1974||Deseret Pharma||Catheter placement unit with pressure closure|
|US3856010 *||7 Sep 1973||24 Dec 1974||Deseret Pharma||Catheter placement unit with pressure closure|
|US3875938 *||22 Aug 1973||8 Apr 1975||Mellor Eli K||Multi-mode cannulating apparatus|
|US3893446 *||8 Apr 1974||8 Jul 1975||Peter S Miller||Abdominal catheter and support combination for opaque medium fluids|
|US3915168 *||30 Aug 1974||28 Oct 1975||Bard Inc C R||Intravenous catheter introduction assembly|
|US3920215 *||13 May 1974||18 Nov 1975||Knauf Dieter W||Valve|
|US3970089 *||5 Aug 1974||20 Jul 1976||Saice Dwayne D||Cardiovascular catheter seal device|
|US3977008 *||16 Dec 1974||24 Aug 1976||Zumbach Electronic-Automatic||Method and an apparatus for detecting and recording the number of phenomena|
|US3994287 *||1 Jul 1974||30 Nov 1976||Centre De Recherche Industrielle Du Quebec||Trocar|
|US4000739 *||9 Jul 1975||4 Jan 1977||Cordis Corporation||Hemostasis cannula|
|US4126133 *||13 Jul 1977||21 Nov 1978||Boris Schwartz||Intracorporeal catheter improvement|
|US4149535 *||6 May 1977||17 Apr 1979||Gist-Brocades N.V.||Catheter holding device|
|US4177814 *||18 Jan 1978||11 Dec 1979||KLI, Incorporated||Self-sealing cannula|
|US4212297 *||16 Oct 1978||15 Jul 1980||Nasa||Micro-fluid exchange coupling apparatus|
|US4231400 *||21 May 1979||4 Nov 1980||Gerard Friedling||Removable two-way connector for a faucet nozzle|
|US4240411 *||18 Apr 1978||23 Dec 1980||Olympus Optical Co., Ltd.||Device for sealing an endoscope channel|
|US4243034 *||15 Oct 1979||6 Jan 1981||Viggo Ab||Cannula or catheter assembly|
|US4318401 *||24 Apr 1980||9 Mar 1982||President And Fellows Of Harvard College||Percutaneous vascular access portal and catheter|
|US4324239 *||20 Jun 1980||13 Apr 1982||Whitman Medical Corp.||Safety valve for preventing air embolism and hemorrhage|
|US4378013 *||23 Sep 1980||29 Mar 1983||Burron Medical Inc.||Flow controller for IV chamber|
|US4380234 *||16 Aug 1979||19 Apr 1983||Baxter Travenol Laboratories, Inc.||Infusion needle attachment|
|US4392854 *||28 Nov 1980||12 Jul 1983||Bernhard Ibach||Device for fixing catheters or the like|
|US4397641 *||3 Apr 1981||9 Aug 1983||Jacobs Daimon C||Catheter support device|
|US4424833 *||2 Oct 1981||10 Jan 1984||C. R. Bard, Inc.||Self sealing gasket assembly|
|US4430081 *||6 Jan 1981||7 Feb 1984||Cook, Inc.||Hemostasis sheath|
|US4436519 *||28 May 1981||4 Apr 1989||Title not available|
|US4464178 *||25 Nov 1981||7 Aug 1984||Dalton Michael J||Method and apparatus for administration of fluids|
|US4473369 *||11 Jan 1982||25 Sep 1984||Baxter Travenol Laboratories, Inc.||Continuous ambulatory peritoneal dialysis clamping system|
|US4475548 *||1 Jun 1982||9 Oct 1984||Rudolph Muto||Fitting for endotracheal tube apparatus and method of making the fitting|
|US4496348 *||29 Nov 1979||29 Jan 1985||Abbott Laboratories||Venipuncture device|
|US4516293 *||25 Apr 1983||14 May 1985||Beran Anthony V||Clamping structure|
|US4519793 *||9 Feb 1983||28 May 1985||Galindo Eugene R||Catheter holder|
|US4533349 *||8 Nov 1982||6 Aug 1985||Medical Engineering Corporation||Skin mounted drainage catheter retention disc|
|US4579120 *||29 Jan 1985||1 Apr 1986||Cordis Corporation||Strain relief for percutaneous lead|
|US4580573 *||20 Oct 1983||8 Apr 1986||Medical Device Development Corporation, Inc.||Catheter introducer|
|US4583977 *||15 Aug 1984||22 Apr 1986||Vsesojuzny Nauchno-Issledovatelsky Institut Meditsiuskikh Polimerov||Device for lengthy fixation of a tube introduced into the patient's body|
|US4593681 *||18 Jan 1985||10 Jun 1986||Soni Prasanna L||Stabilizing device for use in arthroscopic and endoscopic surgery|
|US4610665 *||3 Jan 1984||9 Sep 1986||Terumo Kabushiki Kaisha||Medical instrument|
|US4610674 *||29 Aug 1985||9 Sep 1986||Terumo Kabushi Kaisha||Catheter introducing instrument|
|US4626245 *||30 Aug 1985||2 Dec 1986||Cordis Corporation||Hemostatis valve comprising an elastomeric partition having opposed intersecting slits|
|US4632671 *||12 Apr 1985||30 Dec 1986||Dalton Michael J||Conduit anchor adapted to receive stylet|
|US4634421 *||26 Jul 1985||6 Jan 1987||Johnson & Johnson Products Inc.||Valve for incontinent patients|
|US4645492 *||19 Feb 1986||24 Feb 1987||Medical Engineering Corporation||Catheter anchoring device|
|US4650474 *||20 Dec 1984||17 Mar 1987||Laboratoires Biotrol||Device for elimination of urine through ureterostoma|
|US4654030 *||24 Feb 1986||31 Mar 1987||Endotherapeutics||Trocar|
|US4655752 *||7 Apr 1986||7 Apr 1987||Acufex Microsurgical, Inc.||Surgical cannula|
|US4673393 *||24 Dec 1985||16 Jun 1987||Terumo Kabushiki Kaisha||Medical instrument|
|US4699616 *||13 Jun 1986||13 Oct 1987||Hollister Incorporated||Catheter retention device and method|
|US4717385 *||10 Dec 1986||5 Jan 1988||The Beth Israel Hospital Association||Surgical tube anchoring device and method for using same|
|US4723550 *||10 Nov 1986||9 Feb 1988||Cordis Corporation||Leakproof hemostasis valve with single valve member|
|US4767411 *||14 Jul 1987||30 Aug 1988||Edmunds L Henry||Protective catheter sleeve|
|US4786028 *||24 Feb 1987||22 Nov 1988||Heatrae-Sadia Heating Limited||Fluid flow control valve|
|US4798594 *||21 Sep 1987||17 Jan 1989||Cordis Corporation||Medical instrument valve|
|US4817631 *||30 Nov 1987||4 Apr 1989||Schnepp Pesch Wolfram||Method for removing tissue from a body|
|US4839471 *||18 Feb 1988||13 Jun 1989||Northern Telecom Limited||Seals|
|US4842591 *||21 Jan 1988||27 Jun 1989||Luther Ronald B||Connector with one-way septum valve, and assembly|
|US4869717 *||25 Apr 1988||26 Sep 1989||Adair Edwin Lloyd||Gas insufflation needle with instrument port|
|US4874377 *||26 May 1988||17 Oct 1989||Davis Newgard Revocable Family Living Trust||Self-occluding intravascular cannula assembly|
|US4874378 *||1 Jun 1988||17 Oct 1989||Cordis Corporation||Catheter sheath introducer|
|US4874380 *||7 Jan 1988||17 Oct 1989||E. R. Squibb And Sons, Inc.||Catheter retaining device|
|US4883053 *||17 Apr 1989||28 Nov 1989||Beth Israel Hospital||Self-supporting angulator device for precise percutaneous insertion of a needle or other object|
|US4895346 *||2 May 1988||23 Jan 1990||The Kendall Company||Valve assembly|
|US4895565 *||16 May 1988||23 Jan 1990||Cordis Corporation||Medical instrument valve|
|US4897081 *||17 Feb 1987||30 Jan 1990||Thermedics Inc.||Percutaneous access device|
|US4909798 *||12 Nov 1987||20 Mar 1990||Daig Corporation||Universal hemostasis cannula|
|US4915694 *||2 Oct 1987||10 Apr 1990||Vitaphore Corporation||Antimicrobial wound dressing and skin fixator for percutaneous conduits|
|US4917668 *||2 Feb 1989||17 Apr 1990||B.. Braun Melsungen Ag||Valve for permanent venous cannulae or for catheter insertion means|
|US4929235 *||31 Jul 1985||29 May 1990||Universal Medical Instrument Corp.||Self-sealing percutaneous tube introducer|
|US4959055 *||13 Mar 1989||25 Sep 1990||Hillyer Janice L||Retainer for a percutaneous tube|
|US4960259 *||28 Mar 1989||2 Oct 1990||Joka Kathetertechnik Gmbh||Shut-off valve for a liquid flow line or infusion device|
|US4960412 *||15 Apr 1988||2 Oct 1990||Universal Medical Instrument Corp.||Catheter introducing system|
|US4966589 *||14 Nov 1988||30 Oct 1990||Hemedix International, Inc.||Intravenous catheter placement device|
|US4978341 *||6 Apr 1989||18 Dec 1990||Schneider Europe||Introducer valve for a catheter arrangement|
|US5000745 *||18 Nov 1988||19 Mar 1991||Edward Weck Incorporated||Hemostatis valve|
|US5009391 *||31 Oct 1990||23 Apr 1991||The Kendall Company||Valve assembly|
|US5009643 *||9 Aug 1989||23 Apr 1991||Richard Wolf Medical Instruments Corp.||Self-retaining electrically insulative trocar sleeve and trocar|
|US5026352 *||22 Dec 1989||25 Jun 1991||Smiths Industries Public Limited Company||Adjustable fitments for medical tubes|
|US5041095 *||22 Dec 1989||20 Aug 1991||Cordis Corporation||Hemostasis valve|
|US5053014 *||1 Feb 1990||1 Oct 1991||Critikon, Inc.||Catheter with controlled valve|
|US5053016 *||2 Mar 1990||1 Oct 1991||United States Surgical Corporation||Valve seat for an insufflation cannula assembly|
|US5064416 *||17 Jul 1989||12 Nov 1991||Newgard Kent W||Self-occluding intravascular cannula assembly|
|US5073169 *||7 Dec 1990||17 Dec 1991||Steve Raiken||Trocar support|
|US5104383 *||20 Mar 1991||14 Apr 1992||United States Surgical Corporation||Trocar adapter seal and method of use|
|US5104389 *||27 Jun 1991||14 Apr 1992||Cordis Corporation||Medical instrument valve with foam partition member having vapor permeable skin|
|US5127626 *||2 Oct 1990||7 Jul 1992||Applied Vascular Devices, Inc.||Apparatus for sealing around members extending therethrough|
|US5127909 *||5 Apr 1990||7 Jul 1992||United States Surgical Corporation||Flapper valve for an insufflation cannula assembly|
|US5137520 *||24 Apr 1991||11 Aug 1992||Wayne Maxson||Cannula skirt|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US6551282||21 Oct 1999||22 Apr 2003||Tyco Healthcare Group Lp||Universal seal for use with endoscopic cannula|
|US6595946 *||25 Feb 2000||22 Jul 2003||United States Surgical Corporation||Valve assembly|
|US6663598||17 May 2000||16 Dec 2003||Scimed Life Systems, Inc.||Fluid seal for endoscope|
|US6702787||6 Jun 2002||9 Mar 2004||Tyco Healthcare Group Lp||Trocar seal system|
|US6767340||19 Dec 2000||27 Jul 2004||Kimberly-Clark Worldwide, Inc.||Sealing valve assembly for medical products|
|US6863661||28 May 2003||8 Mar 2005||Scimed Life Systems, Inc.||Fluid seal for endoscope|
|US6908449||19 Dec 2000||21 Jun 2005||Kimberly-Clark Worldwide, Inc.||Sealing valve assembly for medical products|
|US6908454||13 Feb 2003||21 Jun 2005||Taut, Inc.||Anchoring assembly for a medical instrument|
|US7214228||14 Jan 2003||8 May 2007||Crabtree John H||Tunnel port apparatus|
|US7217275||26 Sep 2003||15 May 2007||Crabtree John H||Tunnel port apparatus with serial gas-check assembly|
|US7244244||9 Oct 2002||17 Jul 2007||Tyco Healthcare Group Lp||Trocar seal system|
|US7316699||7 Feb 2003||8 Jan 2008||Teleflex Medical Incorporated||Introducer assembly for medical instruments|
|US7537583||19 Jan 2005||26 May 2009||Boston Scientific Scimed, Inc.||Fluid seal for endoscope|
|US7582071||28 Mar 2005||1 Sep 2009||Tyco Healthcare Group Lp||Introducer seal assembly|
|US7608082||6 Jan 2005||27 Oct 2009||Tyco Healthcare Group Lp||Surgical seal for use in a surgical access apparatus|
|US7632250 *||1 Mar 2005||15 Dec 2009||Tyco Healthcare Group Lp||Introducer seal assembly|
|US7645266||24 Feb 2006||12 Jan 2010||Boston Scientific Scimed, Inc.||Fluid seal for endoscope|
|US7731695||27 Aug 2007||8 Jun 2010||Teleflex Medical Incorporated||Caged floating seal assembly|
|US7749198||21 May 2008||6 Jul 2010||Tyco Healthcare Group Lp||Surgical portal apparatus with variable adjustment|
|US7798991||14 Nov 2007||21 Sep 2010||Genico, Inc.||Trocar and cannula assembly having variable opening sealing gland and related methods|
|US7837612||5 Apr 2006||23 Nov 2010||Ethicon Endo-Surgery, Inc.||Tissue suspension device|
|US7842013||25 May 2007||30 Nov 2010||Genico, Inc.||Trocar and cannula assembly having conical valve and related methods|
|US7850655||13 Jul 2009||14 Dec 2010||Tyco Healthcare Group Lp||Valve assembly|
|US7896846||20 Nov 2003||1 Mar 2011||Tyco Healthcare Group Lp||Trocar seal system|
|US7896847 *||5 Aug 2009||1 Mar 2011||Tyco Healthcare Group Lp||Introducer seal assembly|
|US7918827||25 Sep 2007||5 Apr 2011||Tyco Healthcare Group Lp||Seal assembly for surgical access device|
|US7938804 *||23 Feb 2010||10 May 2011||Tyco Healthcare Group Lp||Surgical access apparatus with seal and closure valve assembly|
|US7951118 *||6 Nov 2009||31 May 2011||Tyco Healthcare Group Lp||Introducer seal assembly|
|US7981086||21 May 2008||19 Jul 2011||Tyco Healthcare Group Lp||Surgical access assembly with winepress seal|
|US8012129||19 May 2009||6 Sep 2011||Tyco Healthcare Group Lp||Surgical portal apparatus with waffle seal|
|US8025641||1 Dec 2010||27 Sep 2011||Tyco Healthcare Group Lp||Powered variable seal diameter trocar employing a winepress mechanism|
|US8033995||5 Jun 2009||11 Oct 2011||Ethicon Endo-Surgery, Inc.||Inflatable retractor with insufflation and method|
|US8092430||10 Jan 2012||Tyco Healthcare Group Lp||Single port device with multi-lumen cap|
|US8118783||11 Dec 2008||21 Feb 2012||Tyco Healthcare Group Lp||Access assembly with spherical valve|
|US8123682||2 Jun 2008||28 Feb 2012||Tyco Healthcare Group Lp||Surgical hand access apparatus|
|US8133174||21 May 2008||13 Mar 2012||Tyco Healthcare Group Lp||Self constricting orifice seal|
|US8137267||8 Apr 2009||20 Mar 2012||Ethicon Endo-Surgery, Inc.||Retractor with flexible sleeve|
|US8156934||21 Sep 2006||17 Apr 2012||Trodek Ltd.||Device for securing airway tubing to a patient|
|US8206357||8 Feb 2010||26 Jun 2012||Tyco Healthcare Group Lp||Articulating surgical portal apparatus with spring|
|US8226553||25 Feb 2010||24 Jul 2012||Ethicon Endo-Surgery, Inc.||Access device with insert|
|US8231525||29 Dec 2005||31 Jul 2012||Boston Scientific Scimed, Inc.||Endoscope channel cap|
|US8235947||31 Jan 2011||7 Aug 2012||Tyco Healthcare Group Lp||Introducer seal assembly|
|US8241209||5 Jun 2009||14 Aug 2012||Ethicon Endo-Surgery, Inc.||Active seal components|
|US8257251||8 Apr 2009||4 Sep 2012||Ethicon Endo-Surgery, Inc.||Methods and devices for providing access into a body cavity|
|US8257316||11 Jun 2010||4 Sep 2012||Tyco Healthcare Group Lp||Surgical portal apparatus with variable adjustment|
|US8328844||30 Nov 2011||11 Dec 2012||Covidien Lp||Surgical hand access apparatus|
|US8353824||25 Feb 2010||15 Jan 2013||Ethicon Endo-Surgery, Inc.||Access method with insert|
|US8361109||5 Jun 2009||29 Jan 2013||Ethicon Endo-Surgery, Inc.||Multi-planar obturator with foldable retractor|
|US8409086||7 Dec 2010||2 Apr 2013||Covidien Lp||Surgical portal with rotating seal|
|US8414485||9 Apr 2013||Covidien Lp||Single port device with multi-lumen cap|
|US8419635||8 Apr 2009||16 Apr 2013||Ethicon Endo-Surgery, Inc.||Surgical access device having removable and replaceable components|
|US8430851||30 Apr 2013||Applied Medical Resources Corporation||Surgical access port|
|US8454563||8 Oct 2010||4 Jun 2013||Rogelio A. Insignares||Trocar and cannula assembly having improved conical valve, and methods related thereto|
|US8465422||5 Jun 2009||18 Jun 2013||Ethicon Endo-Surgery, Inc.||Retractor with integrated wound closure|
|US8475490||5 Jun 2009||2 Jul 2013||Ethicon Endo-Surgery, Inc.||Methods and devices for providing access through tissue to a surgical site|
|US8485971||17 Feb 2010||16 Jul 2013||Covidien Lp||Surgical hand access apparatus|
|US8517995||15 Oct 2009||27 Aug 2013||Ethicon Endo-Surgery, Inc.||Access device|
|US8545450||5 Apr 2006||1 Oct 2013||Ethicon Endo-Surgery, Inc.||Multi-port laparoscopic access device|
|US8579860||18 Jan 2012||12 Nov 2013||Covidien Lp||Access assembly with spherical valve|
|US8579870||28 Jun 2007||12 Nov 2013||Kimberly-Clark Worldwide, Inc.||Sealing valve assembly for medical products|
|US8652034||4 Oct 2011||18 Feb 2014||Warsaw Orthopedic, Inc.||Surgical instrument stabilizer and method|
|US8715165||21 Apr 2009||6 May 2014||Boston Scientific Scimed, Inc.||Fluid seal for endoscope|
|US8753264||4 Jan 2010||17 Jun 2014||Boston Scientific Scimed, Inc.||Fluid seal for endoscope|
|US8795163||5 Jun 2009||5 Aug 2014||Ethicon Endo-Surgery, Inc.||Interlocking seal components|
|US8821391||6 Mar 2009||2 Sep 2014||Ethicon Endo-Surgery, Inc.||Methods and devices for providing access into a body cavity|
|US8821445||28 May 2010||2 Sep 2014||Teleflex Medical Incorporated||Caged floating seal assembly|
|US8888746||6 Mar 2013||18 Nov 2014||Covidien Lp||Single port device with multi-lumen cap|
|US8926506||6 Mar 2009||6 Jan 2015||Ethicon Endo-Surgery, Inc.||Methods and devices for providing access into a body cavity|
|US8932275||28 Jun 2007||13 Jan 2015||Covidien Lp||Surgical seal assembly|
|US8968249 *||25 Apr 2011||3 Mar 2015||Covidien Lp||Introducer seal assembly|
|US8968250||29 Apr 2013||3 Mar 2015||Applied Medical Resources Corporation||Surgical access port|
|US9005116||25 Feb 2010||14 Apr 2015||Ethicon Endo-Surgery, Inc.||Access device|
|US9028402||7 Nov 2012||12 May 2015||Covidien Lp||Surgical hand access apparatus|
|US9033928||16 Oct 2014||19 May 2015||Covidien Lp||Single port device with multi-lumen cap|
|US9066754||6 May 2013||30 Jun 2015||Haberland Gary W||Trocar and cannula assembly having improved conical valve, and methods related thereto|
|US9078695||5 Jun 2009||14 Jul 2015||Ethicon Endo-Surgery, Inc.||Methods and devices for accessing a body cavity using a surgical access device with modular seal components|
|US20040092862 *||1 Jul 2003||13 May 2004||Joseph Pasqualucci||Valve assembly|
|US20040138675 *||14 Jan 2003||15 Jul 2004||Crabtree John H||Tunnel port apparatus|
|US20040138676 *||26 Sep 2003||15 Jul 2004||Crabtree John H.||Tunnel port apparatus with serial gas-check assembly|
|US20040204682 *||27 Apr 2004||14 Oct 2004||Smith Robert C.||Surgical sealing apparatus|
|US20040260244 *||5 May 2004||23 Dec 2004||Piechowicz Michael E.||Seals for trocars|
|US20050165356 *||21 Mar 2005||28 Jul 2005||Joseph Pasqualucci||Valve assembly|
|US20050187524 *||14 Jan 2005||25 Aug 2005||Willis Allan F.||Sealing valve assembly for medical products|
|US20050212221 *||1 Mar 2005||29 Sep 2005||Smith Robert C||Introducer seal assembly|
|US20050261661 *||28 Apr 2003||24 Nov 2005||Mcfarlane Richard H||Floating seal assembly for a trocar|
|US20100194060 *||5 Aug 2010||Erblan Surgical, Inc.||Universal closure and method of lubrication|
|US20110196207 *||11 Aug 2011||Tyco Healthcare Group Lp||Introducer seal assembly|
|EP2407091A2||5 Apr 2005||18 Jan 2012||Tyco Healthcare Group LP||Surgical hand access apparatus|
|WO2002049701A2 *||17 Dec 2001||27 Jun 2002||Kimberly Clark Co||Sealing valve assembly for medical products|
|WO2003066129A2 *||7 Feb 2003||14 Aug 2003||Taut Inc||Introducer assembly for medical instruments|
|International Classification||A61B17/34, A61M39/06|
|Cooperative Classification||A61M39/06, A61M2039/0626, A61B17/3462, A61B2017/3464, A61M2039/0686|
|European Classification||A61B17/34H, A61M39/06|
|23 Aug 2001||FPAY||Fee payment|
Year of fee payment: 4
|24 Aug 2005||FPAY||Fee payment|
Year of fee payment: 8
|24 Aug 2009||FPAY||Fee payment|
Year of fee payment: 12