DEVICES FOR REDUCING THE SIZE OF AN INTERNAL TISSUE OPENING

• US 20080039929A1
• Filed: 08/08/2007
• Published: 02/14/2008
• Est. Priority Date: 08/09/2006
• Status: Active Grant

• Current Assignee: Coherex Medical, Inc. (Johnson & Johnson)
• Original Assignee: Coherex Medical, Inc. (Johnson & Johnson)
• Inventors: Davis, Clark, Fox, DeWayne, Linder, Richard, Miles, Scott, Edmiston, Daryl
• Granted Patent: US 8,979,941 B2
• Time in Patent Office: Days
• US Class Current: 623/1.15
• 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 17/0487 Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122
• CPC Class Codes: A61B 17/083 Clips, e.g. resilient
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12168 having a mesh structure A61B17/1214 takes precedence
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/00407 Ratchet means
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00579 Barbed implements
• CPC Class Codes: A61B 2017/00588 Rigid or stiff implements, e.g. made of several rigid parts linked by hinges
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/00601 Implements entirely comprised between the two sides of the opening
• 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 2017/0061 Implements located only on one side of the opening
• CPC Class Codes: A61B 2017/00619 Locking means for locking the implement in expanded state
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/00654 entirely comprised between the two sides of the opening
• CPC Class Codes: A61B 2017/00858 high friction or non-slip
• CPC Class Codes: A61B 2017/00862 : elastic or resilient
• CPC Class Codes: A61B 2017/00867 : shape memory effect
• CPC Class Codes: A61B 2017/00884 : enhancing wound closure
• CPC Class Codes: A61B 2017/0488 : Instruments for applying suture clamps, clips or locks
• CPC Class Codes: A61B 2017/0496 : for tensioning sutures
• CPC Class Codes: A61B 2017/12054 : Details concerning the detachment of the occluding device from the introduction device

Abstract

A medical system for treating an internal tissue opening can include a closure device and associated delivery device. The closure device can include a body portion operatively associated with a first anchor and a second anchor. The body portion can include a plurality of segments defining a multi-cellular structure. The closure device can be configured to apply lateral force to tissue of the internal tissue opening to bring tissue together. The closure device can have a substantially flat aspect, and can include a member adapted to induce tissue growth. The anchors can extend from the body portion and return back to the body portion to define a closed periphery. The anchors can include undulations and can include multiple segments. A method of forming a closure device can include positioning a material on a working surface and cutting a closure device from the material.

Claims

1. A medical device deployable at least partially within a tissue structure, the medical device comprising:

a frame configured to assume a substantially flat configuration, said frame comprising a central portion and at least one anchor, said at least one anchor extending from said central portion and connecting to said frame, wherein said at least one anchor defines a closed periphery of said frame.

2. A medical device as recited in claim 1, wherein said frame comprises a superelastic material.

3. A medical device as recited in claim 1, wherein said central portion comprises a multi-cellular structure.

4. A medical device as recited in claim 1, wherein at least a portion of said central portion defines at least a portion of said at least one anchor.

5. A medical device as recited in claim 1, wherein said at least one anchor extends from said central portion and then returns and joins back into said central portion to define a closed periphery.

6. A medical device as recited in claim 1, wherein said at least one anchor can move between a collapsed orientation and an expanded orientation.

7. A medical device as recited in claim 1, wherein said at least one anchor extends from a first portion of said central portion and joins to said central portion at a second portion spaced apart from said first portion to define a closed periphery.

8. A medical device deployable at least partially within a tissue structure, the medical device comprising:

a frame configured to assume a substantially flat configuration, said frame including at least one anchor configured to adapt to different sizes of tissue structures, said at least one anchor including an undulation configured to facilitate movement of the medical device between an non-deployed orientation and a deployed orientation.

9. A medical device as recited in claim 8, further comprising a multi-cellular body portion.

10. A medical device as recited in claim 9, wherein said at least one anchor is operatively associated with said multi-cellular body portion.

11. A medical device as recited in claim 8, wherein said at least one anchor comprises a distal anchor.

12. A medical device as recited in claim 8, further comprising a second anchor including an undulation.

13. A medical device as recited in claim 8, further comprising a tissue growth inducing member associated with said frame.

14. A medical device deployable at least partially within a tissue structure the medical device comprising:

a frame configured to assume a substantially flat configuration, said frame comprising a central portion and at least one anchor, said at least one anchor including multiple anchor portions extending from said central portion, said multiple anchor portions being configured to position and stabilize said frame.

15. A medical device as recited in claim 14, wherein said frame comprises a flat stent.

16. A medical device as recited in claim 14, wherein said central portion comprises a plurality of segments defining one or more cells.

17. A medical device as recited in claim 14, wherein said multiple anchor portions comprise reinforced segments.

18. A medical device as recited in claim 17, wherein said reinforced segments extend from a joining portion of said central portion.

19. A medical device as recited in claim 14, wherein said at least one anchor is at least partially defined by at least a portion of said central portion.

20. A medical device deployable at least partially within a tissue structure, the medical device comprising:

a unitary frame configured to assume a substantially flat configuration, said unitary frame including a central portion and at least one anchor extending from said central portion.

21. A medical device as recited in claim 20, wherein said central portion and said at least one anchor have a seamless unitary structure.

22. A medical device as recited in claim 20, wherein said frame comprises a multi-cellular structure.

23. A medical device as recited in claim 20, wherein said at least one anchor is operatively associated with said central portion.

24. A medical device as recited in claim 20, wherein said frame is configured to preferentially expand from a constricted configuration to a less constricted configuration.

25. A medical device as recited in claim 20, wherein said at least one anchor comprises a distal anchor.

26. A medical device as recited in claim 20, further comprising a second anchor operatively associated with said central portion, wherein said second anchor comprises a proximal anchor.

27. A method of forming a medical device, the method comprising:

positioning a material; and

removing portions of said material to form a unitary medical device from said material, said medical device comprising a non-tubular body portion having a plurality of interconnecting body support segments, said plurality of body support segments defining one or more cells, and an anchor operatively associated with said body portion.

28. A method as recited in claim 27, wherein said medical device is configured to assume a substantially flat configuration.

29. A method as recited in claim 27, wherein said positioning comprises positioning a material on a working surface.

30. A method as recited in claim 27, wherein said material is a superelastic material.

31. A method as recited in claim 27, wherein said material comprises NiTiNol.

32. A method as recited in claim 27, wherein said removing comprises cutting with a laser.