Combined prosthetic aortic heart valve and vascular graft with sealed sewing ring

• US 5,891,195 A
• Filed: 05/24/1996
• Issued: 04/06/1999
• Est. Priority Date: 05/24/1996
• Status: Expired due to Term

• Current Assignee: Corcym SRL (LivaNova Plc)
• Original Assignee: Sulzer Carbomedics Inc. (Zimmer Biomet Holdings, Inc.)
• Inventors: Campbell, Louis A., Sauter, Joseph A., Klostermeyer, Tammi E.
• Primary Examiner(s): Willse, David H.
• Application Number:
  US08/652,953
• Time in Patent Office: 1,047 Days
• Field of Search: 623/2, 623/900
• US Class Current: 623/1.26
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/2403 with pivoting rigid closure members check valves with hinged closure members in general F16K15/03
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442

Abstract

A combined heart valve and vascular graft, or "valve/graft combination", wherein the heart valve has a sewing ring that is substantially impervious to blood flow. In our preferred embodiment, the sewing ring comprises a solid circular silicone insert which supports the sewing ring radially outwardly form the valve and forms a shield to prevent the flow of blood through the sewing ring.

Claims

1. An implantable prosthetic device comprising

a prosthetic heart valve having

an orifice,

at least one leaflet mounted within said orifice, movable between open and closed positions, and

a sewing ring surrounding said orifice, said sewing ring having means for substantially preventing blood from passing through said sewing ring, and

a vascular graft having a proximal end and a distal end, the proximal end being connected to said prosthetic heart valve.

2. The implantable prosthetic device according to claim 1 wherein the sewing ring further comprises an insert circumferentially disposed around said orifice.

3. The implantable prosthetic device according to claim 2 wherein said insert is comprised of an impervious material.

4. The implantable prosthetic device according to claim 3 wherein said insert is comprised of silicone.

5. The implantable prosthetic device according to claim 1 wherein said sewing ring further comprises a stiffening ring and a fabric collar, said fabric collar being captured between said stiffening ring and said orifice.

6. The implantable prosthetic device according to claim 5 wherein the sewing ring further comprises a insert circumferentially disposed around said stiffening ring.

7. The implantable prosthetic device according to claim 6 wherein said insert is comprised of an impervious sheet.

8. The implantable prosthetic device according to claim 7 wherein said insert is comprised of silicone.