Percutaneous mitral valve annuloplasty delivery system

• US 20050096666A1
• Filed: 09/20/2004
• Published: 05/05/2005
• Est. Priority Date: 12/05/2002
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Kowalsky, Leonard, Nieminen, Gregory, Doll, Brian J., Mathis, Mark L., Braxtan, Ryan, Gordon, Lucas S.
• Granted Patent: US 7,837,729 B2
• Time in Patent Office: Days
• US Class Current: 606/108
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires

Abstract

The invention is a tissue shaping system, including a tissue shaping device with an expandable anchor and a lock; a delivery catheter; a delivery mechanism adapted to deliver the tissue shaping device from outside a patient to a target site within a lumen within the patient via the delivery catheter; and an actuator adapted to deliver an actuation force to the lock to lock the anchor in an expanded configuration. The invention is also a system adapted to percutaneously deliver and deploy a tissue shaping device at a target site within a lumen of a patient. The system includes: a handle; a delivery mechanism supported by the handle and adapted to deliver the tissue shaping device from outside the patient to the treatment site via a delivery catheter; and an actuator supported by the handle and adapted to deliver an actuation force to lock an anchor of the tissue shaping device in an expanded configuration.

Claims

1. A tissue shaping system comprising:

a tissue shaping device comprising an expandable anchor and a lock;

a delivery catheter;

a delivery mechanism adapted to deliver the tissue shaping device from outside a patient to a target site within a lumen within the patient via the delivery catheter; and

an actuator adapted to deliver an actuation force to the lock to lock the anchor in an expanded configuration.

2. The tissue shaping system of claim 1 wherein the delivery mechanism comprises a pusher.

3. The tissue shaping system of claim 1 tissue shaping system further comprising a cartridge adapted to contain the tissue shaping device, the delivery mechanism being further adapted to deliver the tissue shaping device from the cartridge to the delivery catheter.

4. The tissue shaping system of claim 1 tissue shaping system further comprising a dye port adapted to admit an imaging contrast agent to the lumen.

5. The tissue shaping system of claim 4 wherein the delivery catheter and delivery mechanism are further adapted to permit delivery of imaging contrast agent from the dye port to the lumen during delivery and deployment of the tissue shaping device.

6. The tissue shaping system of claim 4 further comprising a connector extending from a proximal end of the delivery catheter, the connector comprising the dye port and a device port, the delivery mechanism being further adapted to delivery the tissue shaping device from outside the patient to the delivery catheter through the device port.

7. The tissue shaping system of claim 6 further comprising a cartridge adapted to contain the tissue shaping device and adapted to connect to the device port of the connector.

8. The tissue shaping system of claim 1 further comprising a handle associated with the delivery mechanism.

9. The tissue shaping system of claim 8 wherein the handle is adapted to support the actuator.

10. The tissue shaping system of claim 8 further comprising a cartridge adapted to contain the tissue shaping device.

11. The tissue shaping system of claim 10 wherein the cartridge is further adapted to engage the handle during delivery and/or deployment of the tissue shaping device.

12. The tissue shaping system of claim 1 wherein the actuator is further adapted to operate the delivery mechanism to move the tissue shaping device with respect to the delivery catheter.

13. The tissue shaping system of claim 12 wherein the actuator is further adapted to move the tissue shaping device with respect to the delivery catheter to expose the anchor.

14. The tissue shaping system of claim 12 wherein the actuator is further adapted to recapture the anchor into the delivery catheter.

15. The tissue shaping system of claim 12 wherein the actuator comprises a rotating nut.

16. The tissue shaping system of claim 1 wherein the actuator is adapted to move the delivery catheter distally to lock the anchor.

17. The tissue shaping system of claim 1 further comprising a locking sleeve, the actuator being further adapted to move the locking sleeve distally to lock the anchor.

18. The tissue shaping system of claim 1 further comprising an attachment mechanism adapted to attach the tissue shaping device to the delivery mechanism.

19. The tissue shaping system of claim 18 wherein the attachment mechanism comprises a tether attached to the tissue shaping device.

20. The tissue shaping system of claim 18 wherein the attachment mechanism is further adapted to release the tissue shaping device from the delivery mechanism.

21. The tissue shaping system of claim 20 wherein the attachment mechanism comprises a hitch wire and a tether attached to the tissue shaping device.

22. The tissue shaping system of claim 21 wherein the attachment mechanism further comprises a hitch wire actuator adapted to move the hitch wire to release the tether from the device.

23. The tissue shaping system of claim 20 further comprising a device release interlock adapted to prevent release of the device prior to actuating the anchor lock actuator.

24. The tissue shaping system of claim 1 wherein the anchor comprises a first anchor, the tissue shaping device further comprising a second anchor, the actuator being further adapted to deliver an actuation force to a second anchor lock to lock the second anchor in an expanded configuration.

25. The tissue shaping system of claim 1 wherein the anchor comprises a first anchor and the actuator comprises a first actuator, the tissue shaping device further comprising a second anchor and the tissue shaping system further comprising a second actuator, the second actuator being further adapted to deliver an actuation force to a second anchor lock to lock the second anchor in an expanded configuration.

26. The tissue shaping system of claim 25 further comprising a handle supporting the first and second actuators.

27. A system adapted to percutaneously deliver and deploy a tissue shaping device at a target site within a lumen of a patient, the system comprising:

a handle;

a delivery mechanism supported by the handle and adapted to deliver the tissue shaping device from outside the patient to the treatment site via a delivery catheter; and

an actuator supported by the handle and adapted to deliver an actuation force to lock an anchor of the tissue shaping device in an expanded configuration.

28. The system of claim 27 wherein the delivery system comprises a pusher supported by the handle.

29. The system of claim 27 wherein the handle comprises a cartridge interface adapted to mate with a cartridge containing a tissue shaping device.

30. The system of claim 29 wherein the delivery system is further adapted to deliver the tissue shaping device from a delivery catheter to the target site when a tissue shaping device cartridge engages the cartridge interface.

31. The system of claim 30 wherein the actuator comprises the cartridge interface.

32. The system of claim 31 wherein the actuator comprises a rotating member comprising threads adapted to mate with threads on a cartridge.

33. The system of claim 30 wherein the actuator comprises a rotating member, the cartridge interface comprising threads on the rotating member adapted to mate with threads on the cartridge.

34. The system of claim 27 further comprising a locking sleeve, the actuator being further adapted to move the locking sleeve distally to lock the anchor.

35. The system of claim 34 wherein the handle comprises a channel, the actuator being disposed in the channel.

36. The system of claim 35 wherein the actuator comprises an actuator lock adapted to prevent movement of the actuator within the channel.

37. The system of claim 27 further comprising a device attachment mechanism supported by the handle and adapted to attach the tissue shaping device to the handle.

38. The system of claim 37 wherein the attachment mechanism comprises a tether attached to the handle.

39. The system of claim 37 wherein the attachment mechanism comprises a hitch wire attached to the handle.

40. The system of claim 39 wherein the attachment mechanism further comprises a hitch wire actuator adapted to move the hitch wire to release the device.

41. The system of claim 40 further comprising a device release interlock adapted to prevent operation of the hitch wire actuator prior to actuating the anchor lock actuator.