Low profile gluteraldehyde-fixed porcine aortic prosthetic device

• US 4,079,468 A
• Filed: 10/26/1976
• Issued: 03/21/1978
• Est. Priority Date: 01/01/1976
• Status: Expired due to Term

• Current Assignee: Felix Orlando Caviano
• Original Assignee: Amadeo Joaquin Pisanu, Domingo Santo Liotta, Fidel Osvaldo Donato, Helio Mario Ferrari
• Inventors: Liotta, Domingo Santo, Pisanu, Amadeo Joaquin, Ferrari, Helio Mario, Donato, Fidel Osvaldo
• Primary Examiner(s): Frinks, Ronald L.
• Application Number:
  US05/735,576
• Time in Patent Office: 511 Days
• Field of Search: 3/1.5, 3/1
• US Class Current: 623/2.17
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: Y10S 623/90 Stent for heart valve

Abstract

A prosthetic device which includes a frame for mounting a gluteraldehyde-fixed porcine aortic valve and includes a sewing ring which surrounds the frame. The frame is provided with a proximal end and a distal end which extends beyond the ring, and the entire unit is covered with medical grade fabric.

Claims

1. A stent for a gluteraldehyde-fixed porcine heart valve prosthesis comprising

a hollow, substantially cylindrical frame for mounting a gluteraldehyde-fixed porcine heart valve, said frame having a distal and proximal end, the distance between which about the entire circumference of said frame is between 7 and 14 millimeters;

and

medical grade fabric covering the external and internal surfaces of the frame.

2. The stent according to claim 1 wherein said distance between said proximal and distal ends of said frame is between 7 and 11 millimeters to permit mounting of a porcine mitral valve.

3. The stent according to claim 1 wherein said distance between said proximal and distal ends of said frame is between 11 and 14 millimeters to permit mounting of a porcine aortic valve.

4. The stent according to claim 1 wherein said distal end has a scalloped edge.

5. The stent according to claim 1 wherein said proximal end has a flat circular rim with a rounded edge.

6. The stent according to claim 1 additionally including a sewing ring mounted on and surrounding said frame to permit suturing of said stent to a patient'"'"'s intracardiac structures, said fabric material covering said ring and said frame.

7. The stent according to claim 6 wherein said sewing ring is disposed closely adjacent to said distal end of said stent.

8. A gluteraldehyde-fixed porcine heart valve prosthesis comprising:

a stent including a hollow, substantially cylindrical frame for mounting a gluteraldehyde-fixed porcine heart valve, said frame having a distal and proximal end, the distance between which about the entire circumference of said frame is between 7 and 14 millimeters;

medical grade fabric covering the external and internal surfaces of the frame; and

a gluteraldehyde-fixed porcine heart valve sutured to said stent.

9. The prosthesis according to claim 8 wherein said distance between said proximal and distal ends of said frame is between 11 and 14 millimeters to permit mounting of a porcine aortic valve.

10. The prosthesis according to claim 8 wherein said distal end has a scalloped edge.

11. The prosthesis according to claim 8 wherein said distance between said proximal and distal ends of said frame is between 7 and 11 millimeters to permit mounting of a porcine mitral valve.

12. The prosthesis according to claim 8 wherein said porcine valve has an aortic ring which is sutured to said proximal end by means of said fabric material and an aortic ridge which is sutured to said distal end by means of said fabric material.