MEDICAL DEVICE SUITABLE FOR USE IN TREATMENT OF A VALVE

• US 20110224784A1
• Filed: 10/20/2010
• Published: 09/15/2011
• Est. Priority Date: 12/15/2004
• Status: Abandoned Application

• Current Assignee: Mednua Limited
• Original Assignee: Mednua Limited
• Inventors: QUINN, Martin
• Application Number:
  US12/908,076
• Publication Number:
  US 20110224784A1
• Time in Patent Office: Days
• US Class Current: 623/2.11
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition

Abstract

A medical device (1210) comprises a generally cylindrical treatment element (1220) for location between a pair of valve leaflets (1212) situated between an atrium (1214) and a ventricle (1216) of a heart. The treatment element (1220) supports the valve leaflets (1212) at the region of co-aptation of the valve leaflets (1212) and occludes the valve opening to resist fluid flow in the retrograde direction through the valve opening. The device (1210) includes a support (1222) to support the treatment element (1210). The support has an anchor (1224) and a tether (1226), the tether (1226) being provided at the end of a guide wire (1228) which is initially utilized in the percutaneous insertion of the treatment element (1220). The treatment element (1220) includes a remotely actuatable clamp therein, in order to allow the treatment element (1220) to be secured to the guide wire (1228) or the tether (1226).

Claims

1. A device for the treatment of a valve defect, the device comprising:

a treatment element; and

an anchor,

the anchor being anchored in a wall of body tissue and being configured to extend only partially through the wall of body tissue;

the treatment element having an expanded treatment configuration and a collapsed delivery configuration;

the treatment element being proximal and movable relative to the anchor.

2. The device as claimed in claim 1, wherein relative movement of the anchor is used to anchor the anchor in a wall of a heart.

3. The device as claimed in claim 1, wherein the treatment element is rotatable relative to the anchor.

4. The device as claimed in claim 1, wherein the treatment element is slidable relative to the anchor.

5. The device as claimed in claim 1, wherein the treatment element is slidable and rotatable relative to the anchor.

28. The device as claimed in claim 1 wherein the anchor is selected from the group comprising a screw, a tine, a suture and a barb.

29. The device as claimed in claim 28 wherein the anchor is adapted for anchoring in the ventricle wall.

30. The device as claimed in claim 29 wherein the anchor is adapted for contacting the wall of the ventricle prior to anchoring.

33. The device as claimed in claim 1, wherein in the treatment configuration the treatment element extends between a pair of valve leaflets.

34. The device as claimed in claim 1, wherein the treatment element is anchored to a body tissue wall from an interior side of the body tissue wall.

35. The device as claimed in claim 1, wherein the treatment element is spaced apart from the anchor.

36. The device as claimed in claim 1, wherein the treatment element in its expanded state is configured to be located at the region of coaptation of the valve leaflets to resist fluid flow in a retrograde direction through the valve opening.

6. A medical device suitable for use in treatment of a valve, the device comprising a treatment element configured to be located between at least a pair of valve leaflets at a region of co-aptation of leaflets of a valve to resist fluid flow in a retrograde direction through an opening of the valve, and an anchor element to anchor the treatment element to a wall of body tissue, the anchor element being spaced apart from the treatment element, the anchor element configured to extend only partially through a body wall tissue.

7. The device as claimed in claim 6, wherein the anchor element extends partially through a body wall tissue from an interior side of the body wall tissue.

8. The device as claimed in claim 6, wherein the body wall tissue is a ventricle of a heart.

9. The device as claimed in claim 6, wherein the treatment element is expandable from a delivery configuration to a deployment configuration, the treatment element being substantially collapsed in the delivery configuration and substantially expanded in the deployment configuration.

10. A medical device suitable for use in treatment of a valve, the device comprising

a treatment element configured to be located between at least a pair of valve leaflets at a region of co-aptation of leaflets of a valve to resist fluid flow in a retrograde direction through an opening of the valve, and

at least one support element to support the treatment element at the region of co-aptation of the valve leaflets,

the support element extending from the treatment element to a body wall tissue, and the support element comprising an outer jacket and an inner core and an anchor at the distal end of the support element.

11. The device as claimed in claim 10, wherein the anchor is engaged with the inner core.

12. The device as claimed in claim 11, wherein the inner core is movable to anchor the anchor in a wall of a heart.

13. The device as claimed in claim 10, wherein the inner core is removable from the outer jacket.

14. The device as claimed in claim 10, wherein the outer jacket is at least partially polymeric and the inner core is at least partially metallic.

15. The device as claimed in claim 10, wherein the inner core is movable relative to the outer jacket.

16. The device as claimed in claim 10, wherein the inner core is rotatable relative to the outer jacket.

17. The device as claimed in claim 10, wherein the inner core is slidable relative to the outer jacket.

31. The device as claimed in claim 10 wherein the jacket comprises a tube.

32. The device as claimed in claim 31 wherein the tube comprises a collar.

37. A device as claimed in claim 10, wherein the support element is configured to support the treatment element extending at least partially through a valve opening.

38. A device as claimed in claim 10, wherein the support element is configured to abut an inner surface of a body tissue wall.

39. A device as claimed in claim 38, wherein the support element is configured to exert a compressive force on a body tissue wall.

40. A device as claimed in claim 10, wherein the treatment element is carried on the support element.

41. A device as claimed in claim 10, wherein the anchor element comprises a hook element or a threaded element.

18. A device for the treatment of a valve defect, the device comprising:

a treatment element configured to be located between at least a pair of valve leaflets at a region of co-aptation of leaflets of a valve to resist fluid flow in a retrograde direction through an opening of the valve, and

a treatment wire;

the treatment wire having a distal end, a proximal end and a proximal segment;

an anchor at the distal end of the treatment wire; and

the proximal segment of the treatment wire being detachable from the treatment wire.

19. The device as claimed in claim 18, wherein the proximal segment of the treatment wire is at least partially located exterior to a patient.

20. The device as claimed in claim 18, wherein the transition segment is adjacent a point of detachment of the proximal segment.

21. The device as claimed in claim 18, wherein the transition segment is provided with an atraumatic tissue implant interface.

42. The device as claimed in claim 18, wherein the anchor is configured to be extended into a body tissue wall from an interior side of the body tissue wall.

43. The device as claimed in claim 42, wherein the anchor element is configured to extend only partially through the body wall tissue.

44. The device as claimed in claim 18, wherein the treatment wire comprises a multi lumen tubing.

45. The device as claimed in claim 18, wherein the device comprises a locking element for locking the treatment element to the treatment wire.

46. The device as claimed in claim 18, wherein the treatment wire comprises a wire, or a tube, or a combination of a wire and a tube.

47. The device as claimed in claim 18, wherein the treatment element comprises a collapsed delivery configuration and an expanded treatment configuration and the treatment element is slidable over the treatment wire in the collapsed configuration and is coupled to the wire in the expanded configuration.

22. A device for the treatment of a valve defect, the device comprising:

a treatment element; and

a treatment wire;

the treatment element having an expanded treatment configuration and a collapsed delivery configuration;

the treatment wire having a distal end, a proximal end and a proximal segment; and

the treatment wire comprising a multilumen tubing.

23. The device as claimed in claim 22, wherein at least one lumen is an inflation lumen.

24. The device as claimed in claim 23, wherein the at least one inflation lumen is occludable after inflation.

25. The device as claimed in claim 22, wherein the treatment element is expandable by mechanical actuation.

26. The device as claimed in claim 22, wherein the treatment element comprises an expansion section.

27. The device as claimed in claim 26, wherein the expansion section has dimensions which are variable by inflating or deflating the expansion section.