Heart Anchor Device

• US 20150039084A1
• Filed: 01/23/2007
• Published: 02/05/2015
• Est. Priority Date: 01/23/2006
• Status: Active Grant

• Current Assignee: V-Wave Ltd.
• Original Assignee: Itshak Cohen
• Inventors: Levi, Tamir, Rosenberg, Meir, Kopelman, Doron, Harel, Tamar, Ben=Amotz, Ori, Rozy, Yoram, Benbenisti, Eyal, Shafrir, Roey, Cohen, Itshak
• Granted Patent: US 9,681,948 B2
• Time in Patent Office: Days
• US Class Current: 623/2.38
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61B 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00035 pH
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00411 actuated by application of energy from an energy source outside the body
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/00853 low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
• CPC Class Codes: A61B 2017/00862 elastic or resilient
• CPC Class Codes: A61B 2017/00867 shape memory effect
• CPC Class Codes: A61B 2017/061 hollow or tubular
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442

Abstract

A medical implant including an anchor portion including a plurality of arms adapted to engage an internal tissue wall of a body from two opposite faces, wherein the anchor portion is configured such that at least one of the arms does not have an entirely overlapping arm on the other side of the wall and an opening portion adapted to define an opening for blood flow through the internal tissue wall, when the anchor portion engages the wall.

Claims

1. A medical implant, comprising:

an anchor portion including a plurality of arms adapted to engage an internal tissue wall of a body from two opposite faces, wherein the anchor portion is configured such that at least one of the arms does not have an entirely overlapping arm on the other side of the wall; and

an opening portion adapted to define an opening for blood flow through the internal tissue wall, when the anchor portion engages the wall.

2. A medical implant according to claim 1, wherein the opening portion is adapted to radially expand in changing from a collapsed state to a deployed state.

3. A medical implant according to claim 1, wherein a largest end to end extent of the anchor portion in a deployed state is at least twice the largest end to end extent of the opening defined by the opening portion.

4. A medical implant according to claim 3, wherein a largest end to end extent of the anchor portion is at least four times the largest end to end extent of the opening defined by the opening portion.

5. A medical implant according to claim 1, wherein the opening portion comprises a ring surrounding the defined opening.

6. A medical implant according to claim 1, wherein the anchor portion and opening portion are configured to have a low profile of less than 3 millimeters in a deployed state not on a tissue wall.

7. A medical implant according to claim 1, wherein the plurality of arms comprise flexible elongate elements.

8. A medical implant according to claim 1, wherein the plurality of arms comprise petals.

9. A medical implant according to claim 1, wherein in the deployed state at least one of the arms does not have an even a partially overlapping arm on the other side of the wall.

10. A medical implant according to claim 1, wherein the arms are configured to surround the orifice in a deployed state and wherein most of the arms are neighbored along a line surrounding the orifice by two arms configured to be on an opposite side of the wall.

11. A medical implant according to claim 1, wherein most of the arms of the anchoring portion do not have arms overlapping them on the other side of the wall, in the deployed state.

12. A medical implant according to claim 1, wherein the anchor portion and the opening portion are comprised in a single element.

13. A medical implant according to claim 1, comprising a mesh mounted on the opening portion.

14. A medical implant according to claim 1, comprising a valve mounted on the anchor portion in a manner which regulates flow through an opening defined by the opening portion.

15. A medical implant according to claim 14, wherein the valve is formed together with the anchor portion from a same sheet, wire or tube.

16. A medical implant according to claim 14, wherein the valve is at least partially formed from a different material from the anchor portion.

17. A medical implant according to claim 1, wherein portions of the implant are covered by ePTFE or polyurethane.

18. A medical implant according to claim 14, comprising a motor mounted on the anchor portion and adapted to control the valve.

19. A medical implant according to claim 14, comprising a sensor mounted on the anchor portion.

20. A medical implant, comprising:

an anchor portion adapted to attach to internal tissue of a body; and

an opening portion adapted to define an opening for blood flow when deployed within the body, which opening has a length of less than 3 millimeters, in which blood passing through the opening comes in contact with the implant.

21. An implant according to claim 20, wherein the anchor portion includes a plurality of arms adapted to be located on opposite sides of the attach to the tissue by including parts adapted to be located on opposite sides of a tissue wall.

22. An implant according to claim 21, wherein the anchor portion comprises a plurality of elongate elements extending radially from the opening portion, wherein a first group of the elongate elements are adapted to be located on one side of the wall and a second group of the elongate elements is adapted to be located on a second side of the wall.

23. An implant according to claim 22, wherein each of the first and second groups comprises at least three elongate elements.

24. An implant according to claim 22, wherein at least some of the elongate elements comprise petal shaped elements.

25. An implant according to claim 22, wherein at least some of the elongate elements comprise hoof shaped elements.

26. An implant according to claim 20, wherein the anchor portion and opening portion are formed from a single piece.

27. An implant according to claim 20, wherein the implant has a collapsed state and a deployed state and wherein the opening portion is adapted to apply a radial force when released from the collapsed state.

28. An implant according to claim 20, wherein the opening portion is adapted to cover less than 20% of the perimeter of the opening it defines.

29. An implant according to claim 20, wherein the anchor portion is configured to engage a tissue wall such that a length in which blood passing through the opening comes in contact with the implant is less than 1 millimeter thicker than the wall.

30. An implant according to claim 20, wherein the anchor portion and opening portion are configured to have in a deployed state a low profile of less than 3 millimeters.

31. An implant according to claim 20, wherein the anchor portion and opening portion are configured to have a low profile of less than 15% of an end to end extent of the anchor portion in a deployed state.

32. An implant according to claim 20, wherein the anchor portion and opening portion are configured to have a low profile of less than 10% of an end to end extent of the anchor portion in a deployed state.

33. An implant according to claim 20, wherein in the deployed state, the implant does not include parts within the opening defined by the opening portion, beyond parts of the opening portion defining the opening.

34. An implant according to claim 20, comprising a skirt surrounding the opening defined by the opening portion.

35. An implant according to claim 20, comprising a closure unit adapted to block blood flow through the opening.

36. An implant according to claim 35, wherein the closure unit is part of a valve which controls the extent of blood flow through the opening.

37. An implant according to claim 20, wherein the anchor portion does not include sharp points.

38. An implant according to claim 20, wherein the anchor portion includes at least one spike adapted to penetrate the tissue.

39-174. -174. (canceled)