A surgical seal assembly, includes a seal housing defining a longitudinal housing axis and having a longitudinal opening therethrough, a seal having an inner seal portion defining a passage and being adapted to form a substantial seal about a surgical instrument disposed within the passage and a gui
A surgical seal assembly, includes a seal housing defining a longitudinal housing axis and having a longitudinal opening therethrough, a seal having an inner seal portion defining a passage and being adapted to form a substantial seal about a surgical instrument disposed within the passage and a guide mounted to the seal housing. The guide has an inner guide portion proximal of the inner seal portion of the seal and spaced therefrom. The inner guide portion defines a channel adapted to generally direct the surgical instrument toward the inner seal portion of the seal upon entry of the surgical instrument within the longitudinal opening of the seal housing. The inner guide portion is relatively compliant to accommodate initial offset or angled entry of the surgical instrument.
대표청구항▼
1. A surgical seal assembly, which comprises: a seal housing defining a longitudinal axis and having a longitudinal opening therethrough, the seal housing defining proximal and distal ends;a seal having an inner seal portion defining a passage and being adapted to form a seal about a surgical instru
1. A surgical seal assembly, which comprises: a seal housing defining a longitudinal axis and having a longitudinal opening therethrough, the seal housing defining proximal and distal ends;a seal having an inner seal portion defining a passage and being adapted to form a seal about a surgical instrument disposed within the passage; anda guide mounted adjacent an internal tapered wall of the seal housing and longitudinally fixed relative to the seal, at least a portion of the guide is longitudinally aligned with and disposed radially inward of the internal tapered wall of the seal housing, the guide having an inner guide portion proximal of the inner seal portion of the seal and spaced therefrom, the inner guide portion positioned and arranged to not contact the inner seal portion during insertion of the surgical instrument through the passage of the seal, the inner guide portion defining a channel adapted to direct the surgical instrument toward the inner seal portion of the seal upon entry of the surgical instrument within the longitudinal opening of the seal housing, the inner guide portion being compliant to accommodate initial offset or angled entry of the surgical instrument, the inner guide portion of the guide being dimensioned and adapted to permit passage of the surgical instrument through the channel without forming a seal about the surgical instrument. 2. The surgical seal assembly according to claim 1 wherein the inner guide portion of the guide includes an elastomeric material. 3. The surgical seal assembly according to claim 1 wherein the channel of the inner guide portion is tapered in configuration, having a proximal entry opening and a distal exit opening, the distal exit opening defining an internal dimension less than a corresponding internal dimension of the proximal entry opening. 4. The surgical seal assembly according to claim 1 wherein the channel defines a frusto-conical configuration. 5. The surgical seal assembly according to claim 1 wherein the guide includes a plurality of compliant members, the compliant members extending at least radially inwardly relative to the longitudinal axis. 6. The surgical seal assembly according to claim 5 wherein the compliant members are mounted in cantilevered relation to the seal housing. 7. The surgical seal assembly according to claim 5 wherein the compliant members are arranged such that adjacent compliant members at least partially overlap each other. 8. The surgical seal assembly according to claim 5 wherein the compliant members extend in a direction having radial and longitudinal components of direction relative to the longitudinal axis. 9. The surgical seal assembly according to claim 1 wherein the seal housing includes an internal wall defining an internal dimension less than an internal dimension of a proximal entry opening of the channel of the inner guide portion to restrict an internal dimension of the longitudinal opening of the seal housing. 10. The surgical seal assembly of claim 1 further comprising a zero closure valve. 11. The surgical seal assembly of claim 1 wherein the seal housing defines a channel including a tapered section, and wherein the guide is spaced from the tapered section along the longitudinal axis. 12. The surgical seal assembly of claim 1 wherein the guide defines surfaces extending along axes intersecting the longitudinal axis. 13. The surgical seal assembly of claim 1 wherein the passage defined by the seal includes a proximal opening defining an internal dimension, and the channel defined by the inner guide portion is tapered in configuration and includes proximal and distal openings, the proximal opening of the channel defined by the inner guide portion being larger than the distal opening of the channel defined by the inner guide portion, and the distal opening of the channel defined by the inner guide portion being larger than the internal dimension of the proximal opening of the passage defined by the seal. 14. The surgical seal assembly of claim 1 wherein the guide is spaced from the seal along the longitudinal axis in a manner preventing interference with functioning of the seal. 15. The surgical seal assembly according to claim 1, wherein the guide is suspended from the internal tapered wall of the seal housing. 16. The surgical seal assembly according to claim 1, wherein the internal tapered wall of the seal housing is positioned and arranged to be prevented from contacting the surgical instrument during insertion of the surgical instrument. 17. A surgical assembly, which comprises: a cannula assembly including a cannula housing and a cannula sleeve extending from the cannula housing, the cannula assembly providing access to an underlying surgical site; anda seal assembly, the seal assembly including: a seal housing adapted for releasable connection to the cannula housing, the seal housing defining a longitudinal axis and having a longitudinal opening therethrough;a seal having an inner seal portion adapted to form a seal about a surgical instrument; anda guide mounted to an internal tapered wall of the seal housing and longitudinally fixed relative to the seal, the guide including a compliant inner guide portion adapted to accommodate initial offset entry of the surgical instrument within the seal housing and being mounted with respect to the seal housing to direct the surgical instrument toward the inner seal portion of the seal during continued advancement of the surgical instrument through the longitudinal opening of the seal housing, the inner guide portion of the guide being spaced from the inner seal portion in non-contacting relation therewith, the inner guide portion of the guide being dimensioned and adapted to permit passage of the surgical instrument through a channel defined therein without forming a seal about the surgical instrument. 18. The surgical assembly according to claim 17 wherein the cannula assembly includes a valve adapted to close in an absence of the surgical instrument inserted therethrough and open in a presence of the surgical instrument. 19. The surgical assembly according to claim 17 wherein the inner guide portion of the guide is isolated from the inner seal portion of the seal to not interfere with functioning of the seal. 20. The surgical assembly according to claim 19 wherein the guide includes a plurality of compliant members coaxially arranged about the longitudinal axis. 21. The surgical assembly according to claim 17 wherein the guide is disposed proximal of the seal. 22. The surgical assembly of claim 17 further comprising a zero closure valve. 23. The surgical assembly of claim 17 wherein the channel is tapered in configuration and has a proximal entry opening and a distal exit opening, the distal exit opening defining an internal dimension less than a corresponding internal dimension of the proximal entry opening. 24. The surgical assembly of claim 17 wherein the guide is spaced from the seal along the longitudinal axis in a manner preventing interference with functioning of the seal. 25. A method for performing a surgical procedure, comprising: accessing an underlying operative site with a cannula assembly, the operative site being insufflated with insufflation fluids;mounting a seal assembly to the cannula assembly, the seal assembly including a seal housing defining a longitudinal axis, a seal mounted within the seal housing, and a guide mounted to an internal tapered wall of the seal housing proximal of the seal and longitudinally fixed relative to the seal, the guide comprising an inner guide portion defining a tapered orientation obliquely arranged relative to the longitudinal axis and having a compliant material;introducing a surgical instrument within the seal assembly whereby the inner guide portion of the guide directs the surgical instrument toward an internal passage of the seal without the inner guide portion of the guide forming a seal thereabout, the guide being spaced from the internal passage so as to not interfere with functioning of the seal, and whereby the compliant material of the inner guide portion accommodates initial offset or angled entry of the surgical instrument and the seal establishes a seal about the surgical instrument; andperforming the surgical procedure with the surgical instrument. 26. The method for performing a surgical procedure according to claim 17, wherein the step of introducing the surgical instrument includes passing the surgical instrument through a zero closure valve positioned within the seal housing in order to prevent escape of the insufflation fluids following withdrawal of the surgical instrument. 27. The method for performing a surgical procedure according to claim 25 wherein the step of mounting the seal assembly to the cannula assembly includes positioning the seal assembly such that the guide is spaced from the seal along the longitudinal axis so as to prevent interference with functioning of the seal.
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이 특허에 인용된 특허 (95)
Golub Robert (36 Clubhouse La. Scarsdale NY 10583) Stein H. David (91 Larchmont Ave. Larchmont NY 10538) Cantu ; Jr. Roberto (6 Vanderbilt Dr. Lake Success NY 11020), Access device for endoscopic surgery.
Hilal Said S. (Laguna Niguel CA) Cooper Robert P. (Yorba Linda CA) Gadberry Donald L. (Huntington Beach CA), Apparatus for sealing around members extending therethrough.
Hoskin ; deceased William John,GBX ITX by Elizabeth Anne Newell ; legal representative ; Kemp Nicholas Richard,GBX, Gas-tight seal for surgical trocars.
Gentelia John S. (Madison) Williams Frank (Frankfort) Wheatley William (Utica) Longo Sharyn (Frankfort) Forbey Deborah (Smyrna NY), Laparoscopic cannula.
Ritchart Mark A. (Murrieta CA) Cooper Robert P. (Yorba Linda CA) Hart Charles C. (Huntington Beach CA) Gadberry Donald L. (Huntington Beach CA), Lever actuated septum seal.
Tomisaka Dennis M. (Dublin OH) McGinniss Vincent D. (Sunbury OH) Masterson David C. (Grove City OH), Needleless valve having a covalently bonded lubricious coating.
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Hinchliffe Peter W. J. (New Haven CT) Smith Robert C. (Danbury CT) Gresham Richard D. (Monroe CT), Seal assembly for accommodating introduction of surgical instruments.
Stephens Randy R. (Fairfield OH) Banik Michael S. (Cincinnati OH) Ashmore Leslie R. (Maineville OH) Rowe C. Daniel (Batavia OH) Selecman George E. (Salem MA), Seal members for surgical trocars.
Uschold Robert C. (Loveland Cincinnati OH) Stephens Randy R. (Loveland Fairfield OH) Mauch Jeffrey (Loveland Lynchburg VA) Smith Richard C. (Loveland Centerville OH) Houser Kevin (Centerville OH), Sliding reducer seal for surgical trocar.
Pearson Ronald W. (Denton TX) Golden Steven S. (Richardson TX) Spoonemore Kurt B. (Mansfield TX) Exline Donald E. (Carrollton TX) Hewitt Carroll (Dallas TX), Surgical sleeve and trocar.
Gorman ; Jr. Charles E. (Hamden CT) Ciccolella Michael (Lake Carmel NY) Smith Robert C. (Watertown CT) Guy Thomas D. (Fairfield CT) Azarbarzin Kurt (Ridgefield CT), Trocar adapter seal.
Powell Darrel M. ; Schwemberger Richard F. ; Privitera Salvatore ; Kelly William D. ; Keilholz David J., Trocar having protector with flexible end and improved seal assembly.
Stephens Randy R. (Fairfield OH) Schulze Dale R. (Lebanon OH) Bishop Gregory D. (Hamilton OH) Sambi Narinderjit (Maineville OH) Collins John M. (Ipswich MA) Selecman George E. (Salem MA) Sword Randal, Trocar method and apparatus.
Rowe C. Daniel (Batavia OH) Ashmore Leslie R. (Maineville OH) Carroll Chad C. (East Canton OH) Schwemberger Richard F. (Cincinnati OH) Schuler Norman F. (West Chester OH) Collins John M. (Ipswich MA), Trocar seal/protector assemblies.
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Blake ; III Joseph W. (9 Taylor Ave. Norwalk CT 06854), Trocar tube subassembly having sealing ring and duckbill sealing tube having planar, truncate, diverging sealing bills.
Smith Robert C. (Danbury CT) Hinchliffe Peter W. J. (New Haven CT) Correia James (Shelton CT) Nohilly Martin J. (Trumbull CT) Azarbarzin Kurt (Ridgefield CT) Gresham Richard D. (Monroe CT), Valve system for cannula assembly.
Smith Robert C. ; Hinchliffe Peter W. J. ; Correia James ; Nohilly Martin J. ; Azarbarzin Kurt ; Gresham Richard D., Valve system for cannula assembly.
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