Implantable valve system

• US 20070118209A1
• Filed: 12/12/2006
• Published: 05/24/2007
• Est. Priority Date: 10/26/2000
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Strecker, Ernst
• Granted Patent: US 7,776,053 B2
• Time in Patent Office: Days
• US Class Current: 623/1.230
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 2017/00783 Valvuloplasty
• CPC Class Codes: A61B 2017/0647 having one single leg, e.g. tacks
• 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 2/2475 Venous valves
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

An implantable valve having a valve element or leaflet and a base that is attachable to a vessel wall using a connector such as a screw, pin or a staple. The valve can be implanted using a catheter to position the valve in a desired location and drive the connector into the vessel wall. The valve can be used as a venous valve to control blood flow within the veins, arteries, heart or the aorta of a patient.

Claims

1. A delivery catheter for a valve comprising:

a sheath;

a catheter mounted within the sheath, the catheter having a predetermined curved portion that extends from the sheath, and a valve to be delivered within a body lumen; and

a cannula attached to the catheter, the cannula having an aperture that delivers a fluid to a site and having a tip that punctures a body lumen wall for attaching the valve to the body lumen wall.

2. The catheter of claim 1 wherein the fluid comprises a contrast material.

3. The catheter of claim 1, wherein the fluid comprises an adhesive.

4. The catheter of claim 1 wherein the cannula comprises a stopper that adjusts the position of the aperture.

5. The catheter of claim 1, wherein the predetermined curved portion of the sheath positions the tip of the cannula substantially perpendicular to a longitudinal axis of the sheath.

6. The catheter of claim 1, wherein the cannula includes a needle extending from a distal end of the catheter, the needle having a cross-sectional area smaller than a cross-sectional area defined by the distal end of the catheter.

7. The catheter of claim 1, wherein the catheter defines a shoulder adjacent the cannula.

8. The catheter of claim 1, wherein the predetermined curved portion positions a first end of the catheter substantially perpendicular to a first end of the sheath when the catheter is extended a predetermined distance from the sheath.

9. The catheter of claim 1, wherein the cannula passes at least partially through an opening in the valve.

10. The catheter of claim 9, wherein the fluid comprises an adhesive delivered through the aperture to bond to at least a portion of the valve.

11. The catheter of claim 9, wherein the catheter includes shoulders that abut the valve adjacent the opening.

12. The catheter of claim 1, wherein the cannula includes a first end and a second end, the first end of the cannula resides within a lumen of the catheter and the second end of the cannula extends beyond a distal end of the catheter.

13. The catheter of claim 12, wherein catheter defines a shoulder extending proximally from the distal end to where the first end of the cannula resides within the lumen of the catheter.

14. The catheter of claim 1, wherein the aperture is positioned proximal to the tip of the cannula.

15. A valve and delivery catheter kit comprising:

a valve having a base, a valve element connected to the base and a connector to attach the base to a vessel wall such that the valve element moves relative to the base between an open position and a closed position; and

a catheter having a predetermined curved portion and a driver and a guide such that the driver attaches the connector to the vessel wall.

16. The kit of claim 15 wherein the driver comprises a flexible core.

17. The kit of claim 15 wherein the guide comprises a cable.

18. The kit of claim 15 further comprising a sheath that encloses at least a portion of the catheter.

19. The kit of claim 15 wherein the catheter further comprises a catheter connector that connects a distal end of the catheter to the valve.

20. The kit of claim 15 wherein the guide bends a distal end of the catheter.