Device and method for modifying the shape of a body organ

• US 7,828,841 B2
• Filed: 12/21/2007
• Issued: 11/09/2010
• Est. Priority Date: 05/08/2002
• Status: Expired due to Fees

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Kowalsky, Leonard, Mathis, Mark L., Beeson, Cruz, Reuter, David G.
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/963,417
• Publication Number:
  US 20080097594A1
• Time in Patent Office: 1,054 Days
• Field of Search: 623 236- 238
• US Class Current: 623/2.36
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2250/001 for adjusting a diameter
• CPC Class Codes: A61F 2250/0059 temporary

Abstract

An intravascular support device includes a support or reshaper wire, a proximal anchor and a distal anchor. The support wire engages a vessel wall to change the shape of tissue adjacent the vessel in which the intravascular support is placed. The anchors and support wire are designed such that the vessel in which the support is placed remains open and can be accessed by other devices if necessary. The device provides a minimal metal surface area to blood flowing within the vessel to limit the creation of thrombosis. The anchors can be locked in place to secure the support within the vessel.

Claims

1. A device for modifying the shape of tissue adjacent to a lumen, the device comprising:

a first anchor adapted to securely contact a lumen wall when the device is deployed in a lumen, the first anchor having an unexpanded delivery configuration and an expanded deployed configuration;

a lock locking the first anchor in its expanded deployed configuration;

a reshaper extending from the first anchor and adapted to contact the lumen wall when the device is deployed in the lumen; and

a second anchor, the second anchor having an unexpanded delivery configuration and an expanded deployed configuration, the reshaper extending from the first anchor to the second anchor.

2. The device of claim 1 wherein the lock is a first lock, the device further comprising a second lock locking the second anchor in its expanded deployed configuration.

3. The device of claim 1 wherein the lumen is a coronary sinus, the first anchor being adapted to securely contact a wall of the coronary sinus with radially outwardly directed force when the device is deployed in the coronary sinus, the reshaper being adapted to contact the coronary sinus wall and to apply force to the posterior of a mitral valve annulus through the coronary sinus wall.

4. The device of claim 1 wherein the lock comprises a locking element connected to the first anchor.

5. The device of claim 1 wherein the lock comprises a locking element connected to the reshaper.

6. The device of claim 1 wherein the first anchor comprises a flexible member extending from the reshaper in a curved path not parallel to the central axis of the lumen.

7. The device of claim 6 wherein the lock comprises a locking element connected to the flexible member.

8. The device of claim 6 wherein the flexible member is adapted to extend from the axis of the reshaper in at least a first place and a second place.

9. The device of claim 8 wherein the flexible member comprises two arms extending from the first place and two arms extending from the second place.

10. The device of claim 9 wherein the flexible member is adapted to have the two arms extending from the first place and the two arms extending from the second place meet at a third place.

11. The device of claim 10 wherein the flexible member is adapted to have the third place outside of the axis of the reshaper.

12. The device of claim 11 wherein the flexible member is formed in a bowed figure eight pattern.

13. The device of claim 9 wherein the lock comprises a locking element connected to the flexible member.

14. The device of claim 13 wherein the locking element comprises a loop connecting the two arms extending from the first place.

15. The device of claim 14 wherein the locking element comprises a first locking element, the lock further comprising a second locking element connected to the reshaper.

16. The device of claim 15 wherein the reshaper comprises a support wire, the second locking element comprising a bend in the support wire.

17. The device of claim 15 wherein the second locking element comprises a camming surface extending from the reshaper.

18. The device of claim 6 wherein the lock comprises a first locking element connected to the flexible member, the lock further comprising a second locking element connected to the reshaper.

19. The device of claim 18 wherein the reshaper comprises a support wire, the second locking element comprising a bend in the support wire.

20. The device of claim 18 wherein the second locking element comprises a camming surface extending from the reshaper.

21. The device of claim 6 further comprising a crimp, the flexible member comprising two ends held by the crimp.

22. The device of claim 21 wherein the flexible member is adapted to extend from an axis of the crimp in at least a first place and a second place, the first place comprising one end of the crimp.

23. The device of claim 22 wherein the second place comprises another end of the crimp.

24. The device of claim 1 wherein the first anchor is further adapted to circumferentially engage the lumen wall with a radially outwardly directed force in the expanded deployed configuration.