Prosthetic Valve Apparatus, In Particular for Cardiac Applications

• US 20070255400A1
• Filed: 10/21/2004
• Published: 11/01/2007
• Est. Priority Date: 10/23/2003
• Status: Abandoned Application

• Current Assignee: Alessandro Verona, Roberto Erminio Parravicini
• Original Assignee: Alessandro Verona, Roberto Erminio Parravicini
• Inventors: Verona, Alessandro, Centola, Marcos, Parravicini, Roberto
• Application Number:
  US10/576,483
• Publication Number:
  US 20070255400A1
• Time in Patent Office: Days
• US Class Current: 623/2.410
• 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: A61F 2210/009 magnetic

Abstract

A prosthetic valve apparatus, in particular for cardiac applications. The apparatus comprises a valve prosthesis fastened to a suture ring. The apparatus further provides for the valve prosthesis to be fastened to the suture ring by means of a plurality of magnets which provide a magnetic attraction between the two components.

Claims

1. A valve prosthesis apparatus, in particular for cardiac applications, apparatus comprising a valve prosthesis applied on a suture ring apparatus that is wherein said valve prosthesis is fastened to said suture ring by magnetic means.

2. Valve prosthesis apparatus according to claim 1, wherein said magnetic means are contained in a respective continuous groove obtained respectively on said valve prosthesis and on said suture

3. Apparatus according to claim 2, wherein at least one part of said magnetic means are contained in a continuous groove obtained in a stent which is a part of said valve prosthesis.

4. Apparatus according to claim 2, wherein said magnetic means comprise a plurality of magnets.

5. Apparatus according to claim 2, wherein said magnetic means comprise magnets with annular shape

6. Apparatus according to claim 1, wherein said valve prosthesis comprises a stent and valve strips.

7. Apparatus according to claim 6, wherein said valve strips are made of a biomaterial.

8. Apparatus according to claim 7, wherein said biomaterial is derived from corneal stroma, in particular from corneal stroma of tuna fish.

9. Apparatus according to claim 1, wherein at least one portion of said valve prosthesis and at least one portion of said suture ring are coated by a synthetic tissue able to facilitate the suture of said valve prosthesis and of said suture ring.

10. Apparatus according to claim 1, wherein said valve prosthesis and said suture ring are made of deformable materials such as to allow their insertion into the body of a patient through a catheter, i.e. without having to proceed to a traditional heart surgery operation.

11. Apparatus according to claim 10, wherein the magnets are immersed in said deformable materials.

12. Apparatus according to claim 10, wherein the suture ring is made of a synthetic material, in particular polyester.

13. Apparatus according to claim 10, wherein the suture ring has a plurality of hooks able to facilitate its fastening in the implant site.

14. A system for implanting in the human body a prosthetic apparatus comprising a magnetic valve prosthesis and a magnetic suture ring which are easily deformable by compression;

said implant system comprising the following steps;

(a) temporarily reducing by compression the dimensions of the magnetic valve prosthesis (module no. 2) and the magnetic suture ring (module no. 1) in such a way as to allow their insertion in a catheter able to transport said modules no. 1 and no. 2 in the implant site;

(b) inserting said catheter carrying said modules no. 1 and no. 2 into a peripheral vein or artery under constant angiographic control;

(c) releasing the suture ring, which is expanded until assuming the original dimensions, once it reaches the implant site;

(d) fastening said suture ring in the implant site;

(e) releasing the valve prosthesis, which is expanded until assuming the original dimensions, once it reaches the implant site; and

(f) magnetically fastening said valve prosthesis to said suture ring.