Percutaneous mitral valve annuloplasty device delivery method

• US 20050119673A1
• Filed: 09/20/2004
• Published: 06/02/2005
• 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: Braxtan, Ryan, Kowalsky, Leonard, Nieminen, Gregory, Doll, Brian J., Mathis, Mark L., Gordon, Lucas S.
• Granted Patent: US 8,182,529 B2
• Time in Patent Office: Days
• US Class Current: 606/151
• 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: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires

Abstract

The invention is a method of delivering and deploying a tissue shaping device in a lumen within a patient, with the tissue shaping device including an anchor. In some embodiments the method includes the steps of: inserting a delivery catheter into the lumen; percutaneously delivering the device to a target site within the lumen through a delivery catheter; operating an actuator to expose an anchor; and operating the actuator to lock the anchor. In other, the method includes the steps of: inserting a delivery catheter into the lumen; moving the device from a cartridge into the delivery catheter; delivering the device to a target site within the lumen; operating an actuator to move the delivery catheter with respect to the anchor to expose the anchor; and expanding the anchor.

Claims

1. A method of delivering and deploying a tissue shaping device in a lumen within a patient, the tissue shaping device comprising an anchor the method comprising:

inserting a delivery catheter into the lumen;

percutaneously delivering the device to a target site within the lumen through a delivery catheter;

operating an actuator to expose an anchor;

and operating the actuator to lock the anchor.

2. The method of claim 1 wherein the step of operating the actuator to expose the anchor comprises operating the actuator to move the delivery catheter proximally.

3. The method of claim 2 wherein the step of operating the actuator to lock the anchor comprises operating the actuator to move the delivery catheter distally.

4. The method of claim 1 further comprising permitting the anchor to self-expand after exposing the anchor.

5. The method of claim 1 wherein the step of operating the actuator to lock the anchor comprises engaging the anchor with an actuation force.

6. The method of claim 5 wherein the step of engaging the anchor with an actuation force comprises expanding and locking the anchor.

7. The method of claim 1 further comprising applying a proximally directed force on the anchor after locking the anchor.

8. The method claim 7 wherein the anchor is a first anchor, the tissue shaping device further comprising a second anchor, the method further comprising expanding the second anchor.

9. The method of claim 1 wherein the anchor is a first anchor, the tissue shaping device further comprising a second anchor, the method further comprising operating the actuator to expose the second anchor.

10. The method of claim 9 further comprising permitting the second anchor to self-expand after exposing the second anchor.

11. The method of claim 9 further comprising expanding and locking the second anchor.

12. The method of claim 11 wherein the actuator is a first actuator, the step of expanding and locking the second anchor comprising operating a second actuator to expand and lock the second anchor.

13. The method of claim 1 further comprising delivering an imaging contrast agent through the delivery catheter to the treatment site while the tissue treatment device is within the lumen.

14. The method of claim 1 further comprising releasing the tissue shaping device from a delivery mechanism.

15. The method of claim 14 wherein the actuator is a first actuator, the releasing step comprising operating a second actuator to release the tissue shaping device,from the delivery mechanism.

16. The method of claim 14 wherein the releasing step further comprises disconnecting a tether from the tissue shaping device.

17. The method of claim 16 wherein the disconnecting step comprises removing a hitch wire from the tissue shaping device.

18. The method of claim 1 further comprising recapturing the tissue shaping device into the delivery catheter.

19. The method of claim 1 wherein the percutaneously delivering step comprises moving the tissue shaping device from a cartridge into the delivery catheter.

20. The method of claim 19 further comprising attaching the cartridge to the delivery catheter.

21. The method of claim 20 wherein the attaching step comprises attaching the cartridge to a connector extending from the delivery catheter.

22. A method of delivering and deploying a tissue shaping device in a lumen of a patient, the tissue shaping device comprising an anchor, the method comprising:

inserting a delivery catheter into the lumen;

moving the device from a cartridge into the delivery catheter;

delivering the device to a target site within the lumen;

operating an actuator to move the delivery catheter with respect to the anchor to expose the anchor; and

expanding the anchor.

23. The method of claim 22 further comprising locking the cartridge onto the delivery catheter.

24. The method of claim 22 further comprising loading the tissue shaping device into the cartridge.

25. The method of claim 22 wherein the delivering step comprises moving a pusher distally to push the device through the delivery catheter.

26. The method of claim 25 wherein the pusher is attached to a handle, the delivering step comprising moving the handle toward the cartridge.

27. The method of claim 26 further comprising engaging the cartridge with the handle.

28. The method of claim 27 further comprising moving the cartridge at least partially into the handle after the engaging step.

29. The method of claim 27 wherein the engaging step comprises mating the actuator with the cartridge.

30. The method of claim 27 wherein the actuator is mounted on the cartridge prior to the engaging step, the engaging step comprising attaching the actuator to the handle.

31. The method of claim 27 wherein the actuating step comprises rotating the actuator after the engaging step.

32. The method of claim 27 wherein the delivering step comprises delivering the device substantially to a distal end of the delivery catheter when the cartridge engages the handle.

33. The method of claim 22 wherein the expanding step comprises permitting the anchor to self-expand.

34. The method of claim 22 further comprising locking the anchor in an expanded configuration.

35. The method of claim 34 wherein the locking step comprises applying an external actuation force on the anchor.

36. The method of claim 35 wherein the applying step comprises operating the actuator to move the delivery catheter distally.

37. The method of claim 22 wherein the expanding step comprises applying an external actuation force on the anchor.

38. The method of claim 37 wherein the applying step comprises operating the actuator to move the delivery catheter distally.

39. The method of claim 22 further comprising applying a proximally directed force on the device after the expanding step.

40. The method of claim 39 wherein the applying step comprises pulling proximally on a tether attached to the device.

41. The method of claim 39 wherein the anchor comprises a distal anchor, the method further comprising operating the actuator to move the delivery catheter proximally to expose a proximal anchor after the applying step.

42. The method of claim 22 wherein the anchor comprises a distal anchor, the method further comprising operating the actuator to move the delivery catheter proximally to expose a proximal anchor.

43. The method of claim 42 further comprising expanding the proximal anchor.

44. The method of claim 43 further comprising locking the proximal anchor in an expanded configuration.

45. The method of claim 44 wherein the step of locking the proximal anchor comprises applying an external actuation force on the proximal anchor.

46. The method of claim 45 wherein the step of applying an external actuation force on the proximal anchor comprises operating the actuator to move the delivery catheter distally.

47. The method of claim 45 wherein the actuator is a first actuator, the step of applying an external actuation force on the proximal anchor comprising operating a second actuator to move a proximal anchor locking device distally.

48. The method of claim 43 wherein the step of expanding the proximal anchor comprises applying an external actuation force on the proximal anchor.

49. The method of claim 48 wherein the step of applying an external actuation force on the proximal anchor comprises operating the actuator to move the delivery catheter distally.

50. The method of claim 48 wherein the actuator is a first actuator, the step of applying an external actuation force on the proximal anchor comprising operating a second actuator to move a proximal anchor expansion device distally.

51. The method of claim 22 further comprising disengaging the device from a delivery device.

52. The method of claim 51 wherein the disengaging step comprises disengaging a tether from the device.

53. The method of claim 52 wherein the step of disengaging a tether comprises disengaging a hitch wire from the device.

54. The method of claim 53 wherein the actuator is a first actuator, the step of disengaging a hitch wire comprising operating a second actuator to move the hitch wire proximally.

55. The method of claim 51 wherein the actuator is a first actuator, the disengaging step comprising operating a second actuator.

56. The method of claim 22 further comprising recapturing the device after the expanding step.

57. The method of claim 56 wherein the recapturing step comprises operating the actuator to move the delivery catheter distally.