Screw-type skin seal with inflatable membrane

• US 5,997,515 A
• Filed: 04/11/1997
• Issued: 12/07/1999
• Est. Priority Date: 05/19/1995
• Status: Expired due to Term

• Current Assignee: General Surgical Innovations Incorporated (Johnson Controls International plc)
• Original Assignee: General Surgical Innovations Incorporated (Johnson Controls International plc)
• Inventors: Hermann, George D., de la Torre, Roger A., Thayer, Christopher Eric
• Primary Examiner(s): MCDERMOTT, CORRINE MARIE
• Application Number:
  US08/840,104
• Time in Patent Office: 970 Days
• Field of Search: 604/174, 604/175, 604/246, 604/247, 604/250, 604/256, 604/278, 604/337, 606/213, 606/215
• US Class Current: 604/256
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3431 being collapsible, e.g. made of thin flexible material A61B17/3423 takes precedence
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 2017/00544 pneumatically
• CPC Class Codes: A61B 2017/3464 with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments
• CPC Class Codes: A61B 2017/349 Trocar with thread on outside
• CPC Class Codes: A61M 2039/0626 used with other surgical instruments, e.g. endoscope, trocar
• CPC Class Codes: A61M 2039/0633 the seal being a passive seal made of a resilient material with or without an opening
• CPC Class Codes: A61M 2039/066 Septum-like element
• CPC Class Codes: A61M 2039/0673 comprising means actively pressing on the device passing through the seal, e.g. inflatable seals, diaphragms, clamps
• CPC Class Codes: A61M 39/06 Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
• CPC Class Codes: A61M 39/0613 with means for adjusting the seal opening or pressure A61M39/0693 takes precedence

Abstract

A skin seal or trocar stabilizer with an inflatable membrane disposed inside, whereby medical instruments may be passed through the skin seal into a endoscopic work space while the inflatable membrane is inflated, thereby allowing the use of normal short conventional open surgery instruments during endoscopic procedures and during insufflation.

Claims

1. A skin seal comprising:

a tube having a proximal end, a distal end, an outer surface, and an inner bore, said proximal end having a larger outer diameter than said distal end forming a continuous taper therebetween;

an inflatable membrane disposed within said inner bore of said flexible tube; and

an inflation port extending from a wall of said flexible tube and in communication with said inflatable membrane.

2. The skin seal of claim 1 further comprising a plurality of protrusions extending inwardly from said inflatable membrane.

3. The skin seal of claim 2 wherein said plurality of protrusions comprise a plurality of tabs.

4. The skin seal of claim 2 wherein said plurality of protrusions comprise bristle-like brush members.

5. The skin seal of claim 2 wherein said plurality of protrusions are inflatable.

6. The skin seal of claim 1 further comprising screw threads on said outer surface of said flexible tube.

7. The skin seal of claim 1 wherein the tube is flexible.

8. The skin seal of claim 1 wherein the tube is substantially rigid.

9. A skin seal comprising

a flexible tube having a proximal end, and distal end, an outer surface and an inner bore, said proximal end having a larger outer diameter than said distal end forming a continuous taper therebetween,

an inflatable membrane disposed within said inner bore of said flexible tube, said inflatable membrane having a plurality of protrusions extending inwardly therefrom, and

an inflation port extending from a wall of said flexible tube and communicating with said inflatable membrane, said inflation port extending upwardly at an angle.

10. The skin seal of claim 9 wherein said plurality of protrusions comprise a plurality of tabs.

11. The skin seal of claim 9 wherein said plurality of protrusions comprise bristle-like brush members.

12. The skin seal of claim 9 wherein said plurality of protrusions are inflatable.

13. A skin seal comprising:

a flexible tube having a proximal end, a distal end, an outer surface, and an inner bore;

an inflatable membrane disposed within said inner bore of said tube; and

a plurality of protrusions extending inwardly from said inflatable membrane, said plurality of protrusions engaging one another to form a seal upon inflation.

14. The skin of seal of claim 13 further comprising an inflation port extending from a wall of said flexible tube and communicating with said inflatable membrane through an inflation passageway in said wall of said flexible tube.

15. The skin seal of claim 14 wherein said inflation port is angled upwardly from said wall.

16. The skin seal of claim 13 wherein said plurality of protrusions comprise a plurality of tabs.

17. The skin seal of claim 13 wherein said plurality of protrusions comprise a plurality of bristle-like brush members.

18. The skin seal of claim 13 wherein said plurality of protrusions are inflatable.

19. The skin seal of claim 13 wherein said proximal end has a larger outer diameter than said distal end forming a continuous taper therebetween.

20. The skin seal of claim 13 further comprising screw threads formed on said outer surface of said flexible tube.

21. A skin seal comprising:

a tube having a proximal end, a distal end, an outer surface, and an inner bore;

an inflatable membrane disposed within said inner bore of said tube;

a plurality of protrusions extending inwardly from said inflatable membrane, said plurality of protrusions adapted to engage a medical instrument inserted through said inner bore and to form a seal around said medical instrument upon inflation of said inflatable membrane; and

plurality of protrusions on said outer surface adapted to engage the tissue surrounding an incision being sealed.

22. The skin seal of claim 21 further comprising an inflation port extending from a wall of said tube and communicating with said inflatable membrane through an inflation passageway in said wall of said flexible tube.

23. The skin seal of claim 22 wherein said inflation port is angled upwardly from said wall.

24. The skin seal of claim 21 wherein said plurality of protrusions extending inwardly comprise a plurality of tabs.

25. The skin seal of claim 21 wherein said plurality of protrusions extending inwardly comprise a plurality of bristle-like brush members.

26. The skin seal of claim 21 wherein said plurality of protrusions extending inwardly from said inflatable member are inflatable.

27. The skin seal of claim 21 wherein said proximal end has a larger diameter than said distal end forming a continuous taper therebetween.

28. The skin seal of claim 21 wherein said plurality of protrusions on said outer surface comprises screw threads.

29. The skin seal of claim 21 wherein the tube is flexible.

30. The skin seal of claim 21 wherein the tube is substantially rigid.

31. A skin seal comprising:

a flexible tube having a proximal end, a distal end, an outer surface, and an inner bore, said inner bore extending between the proximal end and the distal end;

an inflatable membrane disposed within said inner bore of said flexible tube;

a plurality of protrusions on said outer surface adapted to engage the tissue surrounding an incision being sealed; and

an inflation port extending from a wall of said flexible tube and in communication with said inflatable membrane.

32. The skin seal of claim 31 further comprising a plurality of protrusions extending inwardly from said inflatable membrane.

33. The skin seal of claim 32 wherein said plurality of protrusions extending inwardly comprise a plurality of tabs.

34. The skin seal of claim 32 wherein said plurality of protrusions extending inwardly comprise bristle-like brush members.

35. The skin seal of claim 32 wherein said plurality of protrusions extending inwardly are inflatable.

36. The skin seal of claim 31 wherein said proximal end has a larger outer diameter than said distal end forming a continuous taper therebetween.

37. The skin seal of claim 31 wherein said plurality of protrusions on said outer surface comprises screw threads.

38. A skin seal comprising:

a tube defining a central axis having a proximal end, a distal end, an outer surface and an inner bore;

an inflatable membrane disposed within said inner bore of said tube;

an inflation port extending from a wall of said tube and in communication with said inflatable membrane, said inflation port extending proximally at an acute angle to said tube at an intersection with said tube; and

a plurality of protrusions on said outer surface adapted to engage the tissue surrounding an incision being sealed.

39. The skin seal of claim 38 further comprising a plurality of protrusions extending inwardly from said inflatable membrane.

40. The skin seal of claim 39 wherein said plurality of protrusions comprise a plurality of tabs.

41. The skin seal of claim 39 wherein said plurality of protrusions comprise bristle-like brush members.

42. The skin seal of claim 39 wherein said plurality of protrusions are inflatable.

43. The skin seal of claim 38 wherein said proximal end has a larger outer diameter than said distal end forming a continuous taper therebetween.

44. The skin seal of claim 38 wherein said plurality of protrusions on said outer surface comprises screw threads.