Protective assembly for a percutaneous access device

• US 6,503,228 B1
• Filed: 03/31/2000
• Issued: 01/07/2003
• Est. Priority Date: 03/31/2000
• Status: Active Grant

• Current Assignee: L.VAD Technology, Inc.
• Original Assignee: L.VAD Technology, Inc.
• Inventors: Li, Jun, Kantrowitz, Adrian, Freed, Paul, Taro, George
• Primary Examiner(s): Nguyen, Anhtuan T.
• Assistant Examiner(s): Sirmons, Kevin C.
• Application Number:
  US09/539,938
• Time in Patent Office: 1,012 Days
• Field of Search: 604/500, 604/502, 604/93.01, 604/288-1-2, 604/164.04, 604/164.07, 604/164.08, 604/197, 604/264, 604/175, 604/891.1
• US Class Current: 604/175
• CPC Class Codes: A61M 2039/0288 protectors, caps or covers therefor
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A protective assembly for a protruding portal shields a neck portion of the portal. The protective assembly is well suited for shielding a percutaneous access device during surgical implantation. The protective assembly includes a lid seating pin configured to seat within the interior of the portal and a lid secured to the pin extending over exterior portions of the portal and gapped from the portal face and the neck. Optionally, the pin inserts within a temporary turret engaging the interior of the portal.

Claims

1. A protective assembly for a portal, said assembly comprising:

a protruding portal having an interior, a face and a neck;

a protective lid having a surface gapped from the face and the neck;

a lid seating pin extending into the interior of said protruding portal and engaging said lid; and

a turret forming essentially a right cylinder adapted to seat within the interior of said portal, said turret having a base and inner wall terminating at an upper edge so as to form a cup, wherein said pin engages the cup.

2. A protective assembly for a portal, said assembly comprising:

a protruding portal having an interior, a face and a neck;

a protective lid having a surface gapped from the face and the neck;

a lid seating pin extending into the interior of said protruding portal and engaging said lid;

a turret adapted to seat within the interior of said portal, said turret having a base and inner wall terminating at an upper edge so as to form a cup, wherein said pin engages the cup; and

a screw selectively securing said turret to said portal.

3. A protective assembly for a portal, said assembly comprising:

a protruding portal having an interior, a face and a neck;

a protective lid having a surface gapped from the face and the neck;

a lid seating pin extending into the interior of said protruding portal and engaging said lid; and

a turret adapted to seat within the interior of said portal, said turret having a base and inner wall terminating at an upper edge so as to form a cup, wherein said pin engages the cup and the upper edge of said turret contacts the portal facing surface of said protective lid.

4. A protective assembly for a percutaneous access device comprising:

a turret adapted to seat within said device, said turret having a base, an exterior wall and an inner wall terminating at an upper edge so as to form a cup, the base having a through hole;

a screw selectively securing said turret to said device;

a lid centering pin adapted to fit within the cup, said pin having side walls and a top surface, said pin having lateral dimensions such that the side walls are adjacent to the inner wall upon fitting said pin into the cup, the top surface having at least one blind hole therein;

a protective lid having a lip extending from a cover surface, the cover surface having an aperture aligning with the at least one hole upon said lid engaging said pin, the lip surrounding the outer surface of the protruding part of said device and forming a gap therewith; and

at least one screw adapted to engage the at least one blind hole and the aperture to selectively secure said lid to said pin such that the cover surface contacts the upper edge of said turret.

5. The assembly of claim 4 wherein the base of said turret has at least two blind base holes.

6. The assembly of claim 4 wherein said screw is selectively engaged to urge said turret against said portal.

7. The assembly of claim 4 further comprising a first O-ring placed about said screw and in contact with the base of said turret upon selectively securing said turret to said device.

8. The assembly of claim 7 further comprising a second O-ring simultaneously in contact with the exterior of said turret and said device.

9. The assembly of claim 8 wherein said first and second O-rings form a fluid barrier within said device.

10. The assembly of claims 4 wherein the cup of said turret forms essentially a right cylinder.

11. The assembly of claim 4 wherein the inner wall of said turret has a tapered edge at the upper edge.

12. The assembly of claim 4 wherein said pin forms essentially a right cylinder.

13. The assembly of claim 4 wherein the cup and said pin are concentric.

14. The assembly of claim 4 further comprising a plurality of blind holes in the top surface of said pin and a plurality of apertures in said lid such that each of said plurality of holes aligns with one of said plurality of apertures upon said lid engaging said pin, providing handles for pushing in and pulling off the lid-pin assembly from the cup of said turret.

15. The assembly of claim 4 wherein said pin is tapered at its bottom edge to promote the engagement with the cup of said turret.

16. The assembly of claim 4 wherein said protective lid is constructed of a material comprising stainless steel.

17. The assembly of claim 4 wherein the cover of said lid contacts the upper edge of said turret upon engagement.

18. The assembly of claim 4 further comprising an auxiliary ring to provide a counter force against the skin during removal of said protective assembly.

19. The assembly of claim 18 wherein said ring has an inner diameter larger than the outer diameter of said lid.

20. The assembly of claim 18 wherein said ring comprises perfluoropolyethylene.

21. The assembly of claim 4 further comprising a deformable film ring bounded by the inner wall of said turret and the side walls of said pin.

22. The assembly of claim 21 wherein said deformable film ring comprises a polymeric material.