Venous prosthesis

• US 20040243219A1
• Filed: 07/01/2004
• Published: 12/02/2004
• Est. Priority Date: 02/26/2002
• Status: Abandoned Application

• Current Assignee: Forschungszentrum Karlsruhe Gmbh
• Original Assignee: Forschungszentrum Karlsruhe Gmbh
• Inventors: Vogel, Bernd, Fischer, Harald
• Application Number:
  US10/883,176
• Publication Number:
  US 20040243219A1
• Time in Patent Office: Days
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded

Abstract

In a venous prosthesis for a catheter-implantation into a blood vessel, a stent structure is provided which consists of a biocompatible material and which includes a unidirectional valve which consist of, or is coated with, a cell rejecting thrombose-inhibiting material.

Claims

1. A venous prosthesis for a catheter-implantation into a blood vessel, comprising:

a) a stent structure (1) of a biocompatible material which is implanted into the blood vessel for growing together with the blood vessel, and

b) a unidirectional fluid valve (2) firmly installed in the stent structure (1), said fluid valve consisting at least at the surface thereof of a cell rejecting thrombose-inhibiting material.

2. A venous prosthesis according to claim 1, wherein said stent structure (1) consists of one of a shape memory material and a hyper-elastic material.

3. A venous prosthesis according to claim 1, wherein said stent structure (1) consists of a nickel titanium alloy.

4. A venous prosthesis according to claim 1, wherein said fluid valve (2) comprises at least one flap (3).

5. A venous prosthesis according to claim 4, wherein said at least one flap (3) of said fluid valve (2) is an integral part of said stent structure (1).

6. A venous prosthesis according to claim 1, wherein said fluid valve (2) is a plastic part which is molded or cast together with the stent structure.

7. A venous prosthesis according to claim 1, wherein said fluid valve (2) consists of a nickel titanium alloy and is fixed in the stent structure (1) by one of welding, soldering and cementing.

8. A venous prosthesis according to claim 1, wherein said fluid valve (2) and said stent structure are manufactured from a single part.

9. A venous prosthesis according to claim 1, wherein at least parts of said venous prosthesis consist at least at the surfaces thereof of a medication containing or medication permeable material.