DEVICES FOR REDUCING THE SIZE OF AN INTERNAL TISSUE OPENING

• US 20080039953A1
• 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: Fox, DeWayne, Davis, Clark, Linder, Richard, Miles, Scott, Edmiston, Daryl
• Granted Patent: US 9,220,487 B2
• Time in Patent Office: Days
• US Class Current: 623/23.76
• 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, non-slip on handles A61B2017/00429
• CPC Class Codes: A61B 2017/00862 : elastic or resilient for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/00867 : shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/00884 : enhancing wound closure
• CPC Class Codes: A61B 2017/0488 : Instruments for applying suture clamps, clips or locks for applying suture anchors A61B2017/0409; for applying wound clamps A61B17/10; for applying ligaturing clamps or clips A61B17/128
• 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. A segment can define a variable width along a length of the segment to have a substantially equal stress level along the length when deflected. The closure device can be configured to apply lateral force to tissue of the internal tissue opening to bring tissue together for closure. The closure device can have a substantially flat aspect, and have a depth thickness that is substantially greater than the thickness or width of a majority of the members forming the closure device. The closure device can also include a member adapted to induce tissue growth.

Claims

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

a framework configured to assume a substantially flat configuration, said framework comprising a central portion and at least one anchor extending from said central portion, said central portion including central frame portions having a length and a width, wherein the width of at least one of said central frame portions varies along at least a portion of the length of said at least one of said central frame portions.

2. A medical device as recited in claim 1, wherein said central portion is configured to preferentially expand from a collapsed orientation.

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

4. A medical device as recited in claim 1, wherein said central frame portions in a common lateral plane have substantially equal lengths.

5. A medical device as recited in claim 1, wherein said at least one central frame portion is configured to have a substantially uniform stress along said at least a portion of said length when deflected.

6. A medical device as recited in claim 1, wherein at least one of said central frame portions at least partially defines said at least one anchor.

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

a framework configured to assume a substantially flat configuration, said framework comprising a central portion and at least one anchor extending from said central portion, said central portion including a plurality of central frame portions, at least one of said plurality of central frame portions including a first portion and a second portion, said first portion having a greater rigidity than said second portion.

8. A medical device as recited in claim 7, wherein said central portion comprises a multi-cellular structure.

9. A medical device as recited in claim 7, wherein said central portion is adapted to apply lateral force to the tissue of the tissue structure.

10. A medical device as recited in claim 7, further comprising a tissue growth promoting member associated with said framework.

11. A medical device as recited in claim 7, wherein said first portion has a width that is greater than the width of said second portion.

12. A medical device as recited in claim 7, wherein said first portion comprises a first material and said second portion comprises a second material, said first material being more rigid than said second material.

13. A medical device as recited in claim 7, wherein central frame portions of said plurality of central frame portion in a common lateral plane have substantially equal lengths.

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

a framework configured to assume a substantially flat configuration, said framework comprising a central portion and at least one anchor extending from said central portion, said central portion including central frame portions, at least one of said central frame portions having an aspect ratio of a depth dimension to a lateral width dimension of at least about 2 to 1.

15. A medical device as recited in claim 14, wherein said at least one anchor is operatively associated with said central portion.

16. A medical device as recited in claim 14, further comprising a second anchor operably associated with said central portion, wherein said first anchor comprises a proximal anchor and wherein said second anchor comprises a distal anchor.

17. A medical device as recited in claim 14, wherein said aspect ratio is between about 2:

1 and 10;

1.

18. A medical device as recited in claim 14, wherein said aspect ratio is about 4:

1.

19. A medical device as recited in claim 14, wherein said central frame portion is configured to resist movement out of plane of the substantially flat configuration.

20. A medical device as recited in claim 14, wherein said central frame portion comprises a multi-cellular structure.