Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20070027453 A1
Publication typeApplication
Application numberUS 11/465,686
Publication dateFeb 1, 2007
Filing dateAug 18, 2006
Priority dateSep 24, 2003
Also published asCA2539552A1, EP1663344A2, EP1663344A4, US7112185, US20050065475, WO2005030293A2, WO2005030293A3
Publication number11465686, 465686, US 2007/0027453 A1, US 2007/027453 A1, US 20070027453 A1, US 20070027453A1, US 2007027453 A1, US 2007027453A1, US-A1-20070027453, US-A1-2007027453, US2007/0027453A1, US2007/027453A1, US20070027453 A1, US20070027453A1, US2007027453 A1, US2007027453A1
InventorsCharles Hart, Henry Kahle, Scott Taylor
Original AssigneeApplied Medical Resources Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Anti-inversion trocar seal
US 20070027453 A1
Abstract
The invention is directed to a trocar seal adapted to form a seal around a surgical instrument, the trocar seal comprising a housing having an axis extending between a proximal end and a distal end and forming a working channel sized and configured to receive the surgical instrument; an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the housing across the working channel; portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument; and at least one structure formed integrally with or proximate to the septum seal to prevent inversion of the septum seal upon withdrawal of the surgical instrument. The septum seal or the housing may further comprise a sidewall to include the structure extending from the sidewall to the distal face of the seal to tether the seal distally. The structure may be integrally formed with the proximal face of the septum seal to reinforce the seal, or the structure may be integrally formed with the distal face of the septum seal to tether the seal distally The structure may be an annular reinforcement or rib, and is formed so as to allow side-to-side movement or floatation of the seal. The trocar seal may further comprise a plurality of radially extending ribs formed on the proximal or distal face of the septum seal to reinforce the seal. The trocar seal may further comprise a tensile element formed on the distal face of the septum seal.
Images(6)
Previous page
Next page
Claims(26)
1. A trocar seal adapted to form a seal around a surgical instrument, comprising:
a housing having an axis extending between a proximal end and a distal end and forming a working channel sized and configured to receive the surgical instrument;
an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the housing across the working channel;
portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument;
a zero closure valve, the zero closure valve in a non-contacting relationship with the portions of the septum seal defining the hole; and
at least one structure operationally coupled to the septum seal to prevent inversion of the septum seal upon withdrawal of the surgical instrument.
2. The trocar seal of claim 1, wherein the septum seal comprises a sidewall including the structure extending from the sidewall to the distal face of the seal to tether the seal downward.
3. The trocar seal of claim 1, wherein the housing comprises a sidewall including the structure extending from the sidewall to the distal face of the seal to tether the seal downward.
4. The trocar seal of claim 1, wherein the structure is integrally formed on the proximal face of the septum seal to reinforce the seal.
5. The trocar seal of claim 1, wherein the structure is integrally formed on the distal face of the septum seal to tether the distal face of the seal downward.
6. The trocar seal of claim 5, wherein the structure is an annular reinforcement.
7. The trocar seal of claim 6, wherein the annular reinforcement is formed so as not to prevent side-to-side movement or floatation of the seal.
8. The trocar seal of claim 4, wherein the structure is an annular reinforcement.
9. A trocar seal adapted to form a seal around a surgical instrument, comprising:
a housing having an axis extending between a proximal end and a distal end and forming a working channel sized and configured to receive the surgical instrument;
an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the housing across the working channel;
portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument;
a zero closure valve, the zero closure valve in a non-contacting relationship with the portions of the septum seal defining the hole; and
at least one structure operationally coupled to the septum seal to prevent inversion of the septum seal upon withdrawal of the surgical instrument;
wherein the structure is an annular rib.
10. The trocar seal of claim 9, wherein the annular rib is formed so as not to prevent floatation of the seal.
11. The trocar seal of claim 4, wherein the structure is an annular rib.
12. The trocar seal of claim 5, further comprising a plurality of radially extending ribs formed on the distal face of the septum seal to reinforce the seal.
13. The trocar seal of claim 12, wherein the plurality of radially extending ribs are formed so as not to prevent floatation of the seal.
14. The trocar seal of claim 4, further comprising a plurality of radially extending ribs formed on the proximal face of the septum seal to reinforce the seal.
15. The trocar seal of claim 5, further comprising a tensile element formed on the distal face of the septum seal.
16. The trocar seal of claim 15, wherein the tensile element is formed from surgical suture, an elastomer, a thermoplastic, or a metal wire.
17. The trocar seal of claim 1, wherein the structure includes any structure disposed distally of the septum seal and is placed in tension when the seal is moved proximally.
18. The trocar seal of claim 1, wherein the structure includes any structure disposed proximally of the septum seal and is placed in compression when the seal is moved proximally.
19. A trocar adapted to form a seal around a surgical instrument, comprising:
a cannula having an axis extending between a proximal end and a distal end;
a housing disposed at the proximal of the cannula and forming with the cannula a working channel sized and configured to receive the surgical instrument;
an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the cannula across the working channel;
portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument; and
a zero closure valve, the zero closure valve in a non-contacting relationship with the portions of the septum seal defining the hole; and
means for preventing inversion of the septum seal upon withdrawal of the surgical instrument.
20. The trocar of claim 19, wherein the septum seal comprises a sidewall including the structure extending from the sidewall to the distal face of the seal to tether the seal downward
21. The trocar of claim 19, wherein the housing comprises a sidewall including the structure extending from the sidewall to the distal face of the seal to tether the seal downward.
22. The trocar of claim 19, wherein the structure is integrally formed on the proximal face of the septum seal to reinforce the seal.
23. The trocar of claim 19, wherein the structure is integrally formed on the distal face of the septum seal to tether the distal face of the seal downward.
24. The trocar of claim 23, wherein the structure is an annular reinforcement.
25. The trocar of claim 24, wherein the annular reinforcement is formed so as not to prevent side-to-side movement or floatation of the seal.
26-36. (canceled)
Description
  • [0001]
    This is a non-provisional application claiming the priority of provisional application Ser. No. 60/505,791, filed on Sep. 24, 2003, entitled “Trocar Seal With Anti-Inversion Properties”, which is fully incorporated herein by reference.
  • BACKGROUND OF THE INVENTION
  • [0002]
    1. Field of the Invention
  • [0003]
    This invention relates generally to instrument seals in surgical devices and most specifically to septum seals in laparoscopic trocars.
  • [0004]
    2. Discussion of Related Art
  • [0005]
    Less invasive abdominal surgery, commonly referred to as laparoscopic surgery, is undertaken with instruments extending across the abdominal wall. In this procedure, the volume of the abdominal surgical site is increased by inflating the abdomen with a gas. In order to maintain the pressure of the gas within the abdomen while passing instruments across the abdominal wall, access devices, commonly referred to as trocars, are positioned through holes in the abdomen. These trocars are provided with seals which engage the instruments as they are passed through the trocar and into the inflated abdomen.
  • [0006]
    The seals most commonly used for this purpose are septum seals which are elastomeric and are generally planar in configuration. The septum seals are generally made of a thin material that may tend to engage the body or shaft of an inserted instrument and be drawn along with the axial motion of the instrument as the instrument is placed, used, or removed through the septum seals. These seals extend across a working channel of the trocar and form a seal with the instrument as the instrument is passed through a hole in the septum seal. When the instrument is inserted, the septum seal is pushed generally in the distal direction as it forms a seal with the instrument. When the instrument is withdrawn, the opposite effect occurs; the septum seal is pulled generally in the proximal direction causing the seal to invert. This inversion can add undesirable friction during use of the instrument and may cause the septum to bind or gather between the instrument and portions of the seal housing or floating ring or other adjacent structures when the instrument is withdrawn.
  • SUMMARY OF THE INVENTION
  • [0007]
    The invention is directed to a trocar seal adapted to form a seal around a surgical instrument, the trocar seal comprising a housing having an axis extending between a proximal end and a distal end and forming a working channel sized and configured to receive the surgical instrument; an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the housing across the working channel; portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument; and at least one structure formed integrally with or proximate to the septum seal to prevent inversion of the septum seal upon withdrawal of the surgical instrument. In one aspect, the septum seal may further comprise a sidewall including the structure extending from the sidewall to the distal face of the seal to tether the seal distally. In another aspect, the housing may comprise a sidewall including the structure extending from the sidewall to the distal face of the seal to tether the seal distally. In yet another aspect, the structure may be integrally formed with the proximal face of the seal to reinforce the seal, or the structure may be integrally formed with the distal face of the septum seal to tether the seal distally.
  • [0008]
    The structure may be an annular reinforcement or annular rib, and is formed so as not to prevent side-to-side movement or floatation of the seal. The trocar seal may further comprise a plurality of radially extending ribs formed on the proximal or distal face of the septum seal to reinforce the seal. The trocar seal may further comprise a tensile element formed on the distal face of the septum seal. The tensile element may be formed from surgical suture, an elastomer, a thermoplastic, or a metal wire. It is appreciated that in all of the above aspects of the invention, the structure may include any structure disposed distally of the septum seal and is placed in tension when the seal is moved proximally. Similarly, the structure may include any structure disposed proximally of the septum seal and is placed in compression when the seal is moved proximally.
  • [0009]
    In another aspect of the invention, a trocar adapted to form a seal around a surgical instrument is disclosed, the trocar comprising a cannula having an axis extending between a proximal end and a distal end; a housing disposed at the proximal end of the cannula and forming with the cannula a working channel sized and configured to receive the surgical instrument; an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the cannula across the working channel; portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument; and at least one structure formed integrally with or proximate to the septum seal to prevent inversion of the septum seal upon withdrawal of the surgical instrument.
  • [0010]
    These and other features of the invention will become more apparent with a discussion of the various embodiments in reference to the associated drawings.
  • DESCRIPTION OF THE DRAWINGS
  • [0011]
    The accompanying drawings, which are included in and constitute a part of this specification, illustrate the embodiments of the invention and, together with the description, explain the features and principles of the invention. In the drawings:
  • [0012]
    FIG. 1 illustrates an axial cross-section view of a trocar seal including a septum seal and a plurality of gussets in accordance to a first embodiment of the invention;
  • [0013]
    FIG. 2 illustrates an axial cross-section view of a trocar seal including a septum seal and a plurality of annular reinforcements in accordance to a second embodiment of the invention;
  • [0014]
    FIG. 3 illustrates an axial cross-section view of a trocar seal including a septum seal and an annular rib in accordance to a third embodiment of the invention;
  • [0015]
    FIG. 4 illustrates an axial cross-section view of a trocar seal including a septum seal and a plurality of radial ribs in accordance to a fourth embodiment of the invention; and
  • [0016]
    FIG. 5 illustrates an axial cross-section view of a trocar seal including a septum seal and a plurality of tethers in accordance to a fifth embodiment of the invention.
  • DESCRIPTION OF THE INVENTION
  • [0017]
    A feature of the present invention is to prevent the septum portion of a trocar seal from inverting during withdrawal of instruments such as laparoscopic clip appliers or laparoscopic graspers. The septum seal normally includes an access hole which is smaller than the diameter of the utilized instrument to affect a seal around the instrument shaft and prevent loss of pneumoperitoneum during laparoscopic procedures. Frictional forces between the instrument shaft and the opening of the septum seal are therefore present and predispose the septum seal to invert during withdrawal of laparoscopic instruments.
  • [0018]
    Inversion of the septum seal during instrument withdrawal can result in binding of the instrument between the proximal opening of the seal housing, the septum seal, and the shaft of the instrument. This occurs as a result of the septum seal first being pulled into the proximal opening of the seal housing and then being compressed between the instrument shaft and the proximal opening of the seal housing. The present invention includes features which inhibit or prevent inversion of the septum seal during withdrawal of laparoscopic instruments and therefore the present invention eliminates the risk of an instrument binding within the trocar seal during withdrawal.
  • [0019]
    Another feature of the present invention is that by preventing the inversion of the septum seal, the surface area of the septum which is in contact with the outer diameter of the instrument shaft is limited to the circumference of the opening of the septum seal multiplied by the thickness of the septum seal at the opening. This translates into a reduction of frictional forces between the septum seal and the utilized instrument, which is highly desirable during laparoscopic procedures. If the septum seal is allowed to invert, then the surface area of the septum which is in contact with the instrument is significantly increased, as compared to the present invention, resulting in very high frictional forces which can lead to operative complications at a critical point when the laparoscopic surgeon must quickly and smoothly remove and replace instruments through the trocar. By reducing the frictional forces or instrument drag, the present invention facilitates rapid and smooth instrument exchanges during laparoscopic procedures.
  • [0020]
    The present invention also facilitates smooth and accurate positioning of instruments such as laparoscopic clip appliers within the peritoneal cavity due to the fact that inversion of the septum seal is prevented. In prior art devices in which the septum seal can invert, axial movement of clip appliers can result in a stutter-step motion which occurs as the septum seal toggles between a non-inverted state and an inverted state This in turn can cause many difficulties, for example, in positioning of the clip applier jaws over a vessel, delaying placement of the clip or even in misplacing of the clip itself. By eliminating the inversion of the septum seal during instrument positioning within the peritoneal cavity, the present invention facilitates rapid, smooth, and accurate positioning of laparoscopic instruments at the operative site.
  • [0021]
    The present invention includes novel features which can inhibit the inversion of the septum seal. These features serve generally to either tether the septum seal on its distal side or reinforce the septum seal on its proximal side.
  • [0022]
    Referring to FIG. 1, there is shown an axial cross-section view of a trocar seal 100 adapted to form a seal around a surgical instrument. The trocar seal comprises a housing 10 having an axis 12 extending between a proximal end 14 and a distal end 16 and forming a working channel 18 sized and configured to receive the surgical instrument, and an elastomeric septum seal 20 having a proximal face and a distal face, the septum seal 20 being disposed in the housing 10 and extending transverse to the axis 12 of the housing across the working channel 18. It is appreciated that portions of the septum seal 20 define a hole 22 having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel 18 the septum seal forms a seal with the instrument. In this aspect, the seal 20 further includes a plurality of gussets 24 incorporated onto the distal face of the seal 20 to prevent inversion as the surgical instrument is withdrawn from the trocar seal 100. It is appreciated that the trocar seal 100 typically includes a zero closure valve 30 such a double-duckbill valve. Both of the septum seal 20 and the zero closure valve 30 function to form seals across the working channel 18, the septum seal 20 forms its seal in the presence of the surgical instrument while the zero closure valve 30 forms its seal in the absence of the instrument.
  • [0023]
    In one aspect, the septum seal 20 may further comprise a sidewall including the gussets 24 extending from the sidewall to the distal face of the septum seal 20 and serving to tether the seal distally and thus preventing inversion. The gussets 24 are configured such that side-to-side movement or floatation of the septum seal 20 is not compromised. The gussets 24 may or may not be integral to the septum seal 20. Alternatively, the gussets 24 may be incorporated onto the proximal face of the septum seal 20.
  • [0024]
    Referring to FIG. 2, there is shown an axial cross-section view of a trocar seal 100 b, wherein elements of structures similar to those previously discussed are designated by the same reference numeral followed by the lower case letter “b”, the trocar seal 100 b being adapted to form a seal around a surgical instrument. The trocar seal 100 b comprises a housing 10 b having an axis 12 b extending between a proximal end 14 b and a distal end 16 b and forming a working channel 18 b sized and configured to receive the surgical instrument, and an elastomeric septum seal 20 b having a proximal face and a distal face, the septum seal 20 b being disposed in the housing 10 b and extending transverse to the axis 12 b of the housing across the working channel 18 b. It is appreciated that portions of the septum seal 20 b define a hole 22 b having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel 18 b the septum seal forms a seal with the instrument. In this aspect, the seal 20 b further includes an annular reinforcement 26 incorporated onto the distal face of the seal 20 b to prevent inversion as the surgical instrument is withdrawn from the trocar seal 100 b. In particular, the annular reinforcement 26 serves to tether the distal face of the septum seal 20 b downward and thus prevents inversion. The annular reinforcement 26 is configured so that side-to-side movement or floatation of the septum seal 20 b is not compromised. The annular reinforcement 26 may or may not be integral to the septum seal 20 b. Alternatively, the annular reinforcement 26 may be incorporated onto the proximal face of the septum seal 20 b.
  • [0025]
    Referring to FIG. 3, there is shown an axial cross-section view of a trocar seal 100 c, wherein elements of structures similar to those previously discussed are designated by the same reference numeral followed by the lower case letter “c”, the trocar seal 100 c being adapted to form a seal around a surgical instrument. The trocar seal 100 c comprises a housing 10 c having an axis 12 c extending between a proximal end 14 c and a distal end 16 c and forming a working channel 18 c sized and configured to receive the surgical instrument, and an elastomeric septum seal 20 c having a proximal face and a distal face, the septum seal 20 c being disposed in the housing 10 c and extending transverse to the axis 12 c of the housing across the working channel 18 c. With this aspect, the seal 20 c further includes an annular rib 28 incorporated onto the distal face of the seal 20 c to prevent inversion as the surgical instrument is withdrawn from the trocar seal 100 c. The annular rib 28 serves to reinforce the face of the septum seal 20 c and thus prevents inversion. The annular rib 28 is configured so that side-to-side movement or floatation of the septum seal 20 c is not compromised. The annular rib 28 may or may not be integral to the septum seal 20 c. Alternatively, the annular rib 28 may be incorporated onto the proximal face of the septum seal 20 c.
  • [0026]
    Referring to FIG. 4, there is shown an axial cross-section view of a trocar seal 100 d, wherein elements of structures similar to those previously discussed are designated by the same reference numeral followed by the lower case letter “d”, that is adapted to form a seal around a surgical instrument. The trocar seal 100 d comprises a housing 10 d having an axis 12 d extending between a proximal end 14 d and a distal end 16 d and forming a working channel 18 d sized and configured to receive the surgical instrument, and an elastomeric septum seal 20 d having a proximal face and a distal face, the septum seal 20 d being disposed in the housing 10 d and extending transverse to the axis 12 d of the housing across the working channel 18 d In this aspect, the seal 20 d further includes a plurality of radially extending ribs 32 incorporated onto the distal face of the seal 20 d to prevent inversion as the surgical instrument is withdrawn from the trocar seal 100 d The radially extending ribs 32 serve to reinforce the face of the septum seal 20 d and thus prevent inversion. The ribs 32 are configured so that side-to-side movement or floatation of the septum seal 20 d is not compromised. The radially extending ribs 32 may or may not be integral to the septum seal 20 d. Alternatively, the radially extending ribs 32 may be incorporated onto the proximal face of the septum seal 20 d.
  • [0027]
    In yet another aspect of the invention as illustrated in FIG. 5, there is shown an axial cross-section view of a trocar seal 100 e, wherein elements of structures similar to those previously discussed are designated by the same reference numeral followed by the lower case letter “e”, that is adapted to form a seal around a surgical instrument. The trocar seal 100 e comprises a housing 10 e having an axis 12 e extending between a proximal end 14 e and a distal end 16 e and forming a working channel 18 e sized and configured to receive the surgical instrument, and an elastomeric septum seal 20 e having a proximal face and a distal face, the septum seal 20 e being disposed in the housing 10 e and extending transverse to the axis 12 e of the housing across the working channel 18 e. In this aspect, the seal 20 e further includes a plurality of tensile elements or tethers 34 incorporated onto the distal face of the seal 20 e to prevent inversion as the surgical instrument is withdrawn from the trocar seal 100 e. The tensile elements 34 serve to reinforce the face of the septum seal 20 e and thus prevent inversion. The tensile elements 34 may be configured from surgical suture and may be integral to the septum seal 20 e In another aspect, the septum seal 20 e may further comprise a sidewall including the tensile elements 34 extending from the sidewall to the distal face of the septum seal 20 e and serving to tether the distal face of the seal downward and thus preventing inversion.
  • [0028]
    The invention further contemplates any structure, whether or not it is attached to the septum valve, which will inhibit movement of the valve in the proximal direction upon withdrawal of an instrument. This might include any structure disposed on the distal side of the septum valve which would be placed in tension if the valve tended to move proximally. It would also include any structure disposed on the proximal side of the valve which would typically be placed in compression if the valve were to move in the proximal direction.
  • [0029]
    It will be understood that many other modifications can be made to the various disclosed embodiments without departing from the spirit and scope of the invention For these reasons, the above description should not be construed as limiting the invention, but should be interpreted as merely exemplary of preferred embodiments.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US4240411 *Apr 18, 1978Dec 23, 1980Olympus Optical Co., Ltd.Device for sealing an endoscope channel
US4653477 *Sep 6, 1985Mar 31, 1987Olympus Optical Co., Ltd.Endoscope forceps stopcock
US4929235 *Jul 31, 1985May 29, 1990Universal Medical Instrument Corp.Self-sealing percutaneous tube introducer
US5092857 *May 17, 1991Mar 3, 1992Fleischhacker John JHemostasis valve having support shoulders
US5308336 *Sep 28, 1982May 3, 1994Applied Medical ResourcesSeal protection mechanism
US5330437 *Nov 12, 1993Jul 19, 1994Ethicon Endo-SurgerySelf sealing flexible elastomeric valve and trocar assembly for incorporating same
US5342315 *Apr 12, 1993Aug 30, 1994Ethicon, Inc.Trocar seal/protector assemblies
US5342316 *Aug 17, 1993Aug 30, 1994Wallace Henry GResealable sampling port
US5385553 *Jun 15, 1993Jan 31, 1995Applied Medical Resources CorporationTrocar with floating septum seal
US5401248 *Feb 22, 1994Mar 28, 1995Ethicon Endo-SurgerySeal for trocar assembly
US5407433 *Feb 10, 1993Apr 18, 1995Origin Medsystems, Inc.Gas-tight seal accommodating surgical instruments with a wide range of diameters
US5443452 *Apr 23, 1993Aug 22, 1995Applied Medical ResourcesSeal assembly for access device
US5456284 *May 10, 1993Oct 10, 1995Applied Medical Resources CorporationElastomeric valve assembly
US5584850 *May 25, 1995Dec 17, 1996Applied Medical Resources CorporationTrocar having an anti-inversion seal
US5628732 *Jan 19, 1996May 13, 1997Ethicon Endo-Surgery, Inc.Trocar with improved universal seal
US5709664 *Mar 1, 1996Jan 20, 1998Applied Medical Resources CorporationTrocar valve assembly
US5826598 *Jul 15, 1997Oct 27, 1998Meehan; Katharine E.Scented hair accessory
US5827228 *Feb 16, 1996Oct 27, 1998Ethicon, Inc.Seal members for surgical trocars
US5895377 *Feb 18, 1997Apr 20, 1999United States Surgical CorporationValve system for cannula assembly
US5906595 *Apr 25, 1997May 25, 1999Ethicon Endo-Surgery, Inc.Trocar having protector with flexible end and improved seal assembly
US5989224 *Feb 23, 1998Nov 23, 1999Dexide CorporationUniversal seal for use with endoscopic cannula
US6093176 *Mar 10, 1998Jul 25, 2000Core Dynamics, Inc.Trocar with disposable valve and reusable cannula
US6123689 *Mar 28, 1997Sep 26, 2000Applied Medical Resources CorporationReusable cannula with disposable seal
US6752938 *Oct 13, 2001Jun 22, 2004Invigor Biotechnology Co., Ltd.Method of preparing microsphere composite of collagen and bioceramic powder
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7914496May 21, 2008Mar 29, 2011Tyco Healthcare Group LpAccess assembly with ribbed seal
US7981092May 8, 2008Jul 19, 2011Ethicon Endo-Surgery, Inc.Vibratory trocar
US8075530Mar 20, 2009Dec 13, 2011Applied Medical Resources CorporationInstrument seal with inverting shroud
US8273060Apr 28, 2008Sep 25, 2012Ethicon Endo-Surgery, Inc.Fluid removal in a surgical access device
US8292854Feb 18, 2011Oct 23, 2012Tyco Healthcare Group LpAccess assembly with ribbed seal
US8377090Aug 15, 2012Feb 19, 2013Applied Medical Resources CorporationBlunt tip obturator
US8517977Oct 8, 2007Aug 27, 2013Applied Medical Resources CorporationVisual insufflation port
US8568362Jul 31, 2009Oct 29, 2013Ethicon Endo-Surgery, Inc.Surgical access device with sorbents
US8579807Apr 28, 2008Nov 12, 2013Ethicon Endo-Surgery, Inc.Absorbing fluids in a surgical access device
US8608768Mar 2, 2012Dec 17, 2013Applied Medical Resources CorporationBlunt tip obturator
US8608769Aug 3, 2012Dec 17, 2013Applied Medical Resources CorporationBladeless optical obturator
US8636686Oct 12, 2010Jan 28, 2014Ethicon Endo-Surgery, Inc.Surgical access device
US8636759Mar 30, 2010Jan 28, 2014Applied Medical Resources CorporationBladeless obturator
US8690831Apr 25, 2008Apr 8, 2014Ethicon Endo-Surgery, Inc.Gas jet fluid removal in a trocar
US8870747Apr 28, 2008Oct 28, 2014Ethicon Endo-Surgery, Inc.Scraping fluid removal in a surgical access device
US8915842Jul 14, 2008Dec 23, 2014Ethicon Endo-Surgery, Inc.Methods and devices for maintaining visibility and providing irrigation and/or suction during surgical procedures
US8940009Nov 15, 2013Jan 27, 2015Applied Medical Resources CorporationBladeless optical obturator
US9033929Sep 7, 2012May 19, 2015Ethicon Endo-Surgery, Inc.Fluid removal in a surgical access device
US9155558Jan 23, 2012Oct 13, 2015Applied Medical Resources CorporationInsufflating optical surgical instrument
US9254125Dec 23, 2013Feb 9, 2016Applied Medical Resources CorporationBladeless obturator
US9254148May 2, 2012Feb 9, 2016Applied Medical Resources CorporationLow-profile surgical universal access port
US9265899Jan 26, 2009Feb 23, 2016Applied Medical Resources CorporationInsufflating access system
US9314266Aug 8, 2013Apr 19, 2016Applied Medical Resources CorporationFirst-entry trocar system
US9358040Jul 12, 2013Jun 7, 2016Applied Medical Resources CorporationFirst-entry trocar system
US9358041Apr 28, 2008Jun 7, 2016Ethicon Endo-Surgery, LlcWicking fluid management in a surgical access device
US9427257Nov 3, 2015Aug 30, 2016Applied Medical Resources CorporationHighly responsive instrument seal
US9492062Aug 12, 2013Nov 15, 2016Applied Medical Resources CorporationVisual insufflation port
US9545248Nov 18, 2013Jan 17, 2017Applied Medical Resources CorporationBlunt tip obturator
US9655643Dec 16, 2014May 23, 2017Applied Medical Resources CorporationBladeless optical obturator
US9724125Jul 28, 2016Aug 8, 2017Applied Medical Resources CorporationHighly responsive instrument seal
US20080086074 *Oct 8, 2007Apr 10, 2008Applied Medical Presources CorporationVisual insufflation port
US20080171988 *Oct 31, 2007Jul 17, 2008Erblan Surgical, Inc.Double-cone sphincter introducer assembly and integrated valve assembly
US20080294113 *May 21, 2008Nov 27, 2008Oivind BrockmeierAccess Assembly With Ribbed Seal
US20090192444 *Jan 26, 2009Jul 30, 2009Applied Medical Resources CorporaionInsufflating access system
US20090240204 *Mar 20, 2009Sep 24, 2009Applied Medical Resources CorporationInstrument seal with inverting shroud
US20090270681 *Apr 28, 2008Oct 29, 2009Ethicon Endo-Surgery, Inc.Scraping fluid removal in a surgical access device
US20090270817 *Apr 28, 2008Oct 29, 2009Ethicon Endo-Surgery, Inc.Fluid removal in a surgical access device
US20100010310 *Jul 14, 2008Jan 14, 2010Ethicon Endo-Surgery, Inc.Methods and devices for maintaining visibility and providing irrigation and/or suction during surgical procedures
US20110144445 *Feb 18, 2011Jun 16, 2011Tyco Healthcare Group LpAccess assembly with ribbed seal
USD634006Apr 2, 2008Mar 8, 2011Erblan Surgical, Inc.Double-cone sphincter introducer assembly and integrated valve assembly
USD700326Aug 17, 2011Feb 25, 2014Ethicon Endo-Surgery, Inc.Trocar housing
USD735852Jul 27, 2012Aug 4, 2015Ethicon Endo-Surgery, Inc.Fluid remover
USD736926Jan 17, 2014Aug 18, 2015Ethicon Endo-Sugery, Inc.Trocar housing
WO2009117694A2 *Mar 20, 2009Sep 24, 2009Applied Medical Resources CorporationInstrument seal with inverting shroud
WO2009117694A3 *Mar 20, 2009Mar 18, 2010Applied Medical Resources CorporationInstrument seal with inverting shroud
Classifications
U.S. Classification606/108, 604/167.03
International ClassificationA61B17/34, A61F11/00
Cooperative ClassificationA61B17/3498, A61B17/3462, A61B2017/3464
European ClassificationA61B17/34H, A61B17/34V
Legal Events
DateCodeEventDescription
Aug 18, 2006ASAssignment
Owner name: APPLIED MEDICAL RESOURCES CORPORATION, CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HART, CHARLES C.;KAHLE, HENRY;TAYLOR, SCOTT V.;REEL/FRAME:018142/0222;SIGNING DATES FROM 20040921 TO 20040922