Cuffs for medical applications

• US 20060161251A1
• Filed: 06/22/2004
• Published: 07/20/2006
• Est. Priority Date: 06/30/2003
• Status: Abandoned Application

• Current Assignee: David Peter Shaw
• Original Assignee: David Peter Shaw
• Inventors: Shaw, David Peter
• Application Number:
  US10/561,886
• Publication Number:
  US 20060161251A1
• Time in Patent Office: Days
• US Class Current: 623/2.410
• CPC Class Codes: A61F 2/2403 with pivoting rigid closure members check valves with hinged closure members in general F16K15/03

Abstract

A cuff for medical applications, which may be sewn, glued or frictionally fitted in place; the cuff is made of a flexible openwork structure of a medically acceptable metal such as titanium or a titanium alloy; the flexible openwork structure may be e.g. manufactured from wire using a knitting, weaving or chainmail type structure.

Claims

1. :

A cuff for medical use wherein the cuff is made of a flexible openwork structure of a medically acceptable metal.

2. :

The cuff as claimed in claim 1 wherein the cuff is formed to provide one of the following;

a cuff for a heart valve;

a cuff for a line;

a barrier cuff for a peritoneal dialysis catheter;

an annuloplasty band;

an annuloplasty ring.

4. :

The cuff as claimed in claim 1, wherein the flexible openwork structure is selected from one of the following;

knitted wire, woven wire, wire fabricated into a chainmail structure, wire formed into a random “

steel wool”

structure.

5. :

The cuff as claimed in claim 4, wherein the metal is selected from;

titanium;

a medically approved titanium alloy.

11. :

The cuff as claimed in claim 2, wherein the flexible openwork structure is selected from one of the following;

knitted wire, woven wire, wire fabricated into a chainmail structure, wire formed into a random “

steel wool”

structure.

13. :

The cuff as claimed in claim 11, wherein the metal is selected from;

titanium;

a medically approved titanium alloy.

3. :

A cuff for a mechanical heart valve, wherein the cuff is made of a flexible openwork structure of a medically acceptable wire and provides an inner annular rim dimensioned to fit around the perimeter of the heart valve and formed integrally with an outer annulus of larger diameter than said inner annular rim.

12. :

The cuff as claimed in claim 3, wherein the flexible openwork structure is selected from one of the following;

knitted wire, woven wire, wire fabricated into a chainmail structure, wire formed into a random “

steel wool”

structure.

14. :

The cuff as claimed in claim 12, wherein the metal is selected from;

titanium;

a medically approved titanium alloy.

6. :

A method of promoting tissue ingrowth and endothelialisation and minimising the risk of foreign body infection following the insertion of a cuff in a living subject, said method comprising providing a cuff made of a flexible openwork structure of a medically acceptable metal.

9. :

The method as claimed in claim 6, wherein the flexible openwork structure is selected from one of the following;

knitted wire, woven wire, wire fabricated into a chainmail structure, wire formed into a random “

steel wool”

structure.

10. :

The method as claimed in claim 9, wherein the metal is selected from;

titanium;

a medically approved titanium alloy.

7. :

A method of promoting tissue ingrowth and endothelialisation, minimising the risk of foreign body infection and minimising paravalvular leaks following the fitting of a prosthetic heart valve mounted upon a cuff, in a living subject, and said method comprising the provision of a prosthetic heart valve having a peripheral cuff made of a flexible openwork structure of a medically acceptable metal.

8. :

The method as claimed in claim 7, wherein the cuff provides an inner annular rim dimensioned to fit around the perimeter of the heart valve and formed integrally with an outer annulus of larger diameter than said inner annular rim.

15. :

The method as claimed in claim 7, wherein the flexible openwork structure is selected from one of the following;

knitted wire, woven wire, wire fabricated into a chainmail structure, wire formed into a random “

steel wool”

structure.

16. :

The method as claimed in claim 8, wherein the flexible openwork structure is selected from one of the following;

knitted wire, woven wire, wire fabricated into a chainmail structure, wire formed into a random “

steel wool”

structure.

17. :

The method as claimed in claim 15, wherein the metal is selected from;

titanium;

a medically approved titanium alloy.

18. :

The method as claimed in claim 16, wherein the metal is selected from;

titanium;

a medically approved titanium alloy.