MECHANICAL TISSUE DEVICE AND METHOD

• US 20080119886A1
• Filed: 07/30/2007
• Published: 05/22/2008
• Est. Priority Date: 11/20/2006
• Status: Abandoned Application

• Current Assignee: SeptRx, Inc.
• Original Assignee: Stout Medical Group, L.P. (Alphatec Holdings Incorporated)
• Inventors: GREENHALGH, E. Skott, Kleshinski, Stephen J.
• Application Number:
  US11/830,482
• Publication Number:
  US 20080119886A1
• Time in Patent Office: Days
• US Class Current: 606/200
• 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 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• 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 17/12177 comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00632 Occluding a cavity, i.e. closing a blind opening
• CPC Class Codes: A61B 2017/00867 shape memory effect
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0076 ellipsoidal or ovoid
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2230/008 paraboloidal

Abstract

The present invention relates generally to a device and method for preventing the undesired passage of emboli from a venous blood pool to an arterial blood pool. The invention relates especially to a device and method for treating certain cardiac defects, especially patent foramen ovales and other septal defects, through the use of an embolic filtering device capable of instantaneously deterring the passage of emboli from the moment of implantation. The device consists of a frame, and a braided mesh of sufficient dimensions to prevent passage of emboli through the mesh. The device is preferably composed of shape memory allow, such as Nitinol, which conforms to the shape and dimension of the defect to be treated.

Claims

1. A device configured to treat a biological tunnel defect in a septum made of tissue, comprising:

a resiliently flexible frame;

a first anchor, a second anchor, and a third anchor, wherein the first anchor and the second anchor are positioned toward a first longitudinal end of the device, and wherein the third anchor is positioned toward a second longitudinal end of the device, and wherein the first anchor is located opposite the second anchor, and wherein the first anchor, second anchor, and third anchor are configured to attach to the tissue;

a scaffold coupled to the frame, wherein the scaffold can be configured to substantially fill the tunnel defect;

and wherein the scaffold is configured to encourage growth of the tissue onto the scaffold.

2. The device of claim 1, wherein the scaffold comprises a mesh.

3. The device of claim 1, wherein the scaffold comprises a metal.

4. The device of claim 1, wherein the scaffold comprises a shape-memory metal.

5. The device of claim 1, wherein the scaffold comprises Nitinol.

6. The device of claim 1, wherein the first anchor and the second anchor are resiliently flexible.

7. The device of claim 1, wherein the first anchor and the third anchor are configured to clamp the tissue between the first anchor and the third anchor.

8. The device of claim 1, further comprising a fourth anchor, wherein the second anchor and the fourth anchor are configured to clamp the tissue between the second anchor and the fourth anchor.

9. The device of claim 1, the first anchor can be a passive anchor.

10. The device of claim 1, the first anchor can be an active anchor.

11. The device of claim 1, wherein the scaffold comprises a fabric.

12. The device of claim 1, wherein the scaffold comprises a filament.

13. The device of claim 1, wherein the scaffold is non-woven.

14. The device of claim 1, wherein the scaffold comprises a film.

15. The device of claim 1, wherein the scaffold is configured to plug the tunnel defect.

16. The device of claim 1, wherein the device is biodegradable.

17. The device of claim 1, wherein the device is non-biodegradable.

18. The device of claim 1, wherein the device comprises a drug.

19. The device of claim 18, wherein the drug is a component of a coating.

20. The device of claim 1, wherein the drug is a component of a coating.

21. The device of claim 1, comprising a non-made-material.

22. The device of claim 21, wherein the non-made-material comprises a bone chip.

23. The device of claim 1, comprising a polymer.

24. The device of claim 23, wherein the polymer comprises polylactic acid.

25. The device of claim 23, wherein the polymer comprises polyglycolic acid.

26. The device of claim 1, wherein the scaffold is non-porous.

27. The device of claim 1, wherein the device is configured to meet the contours of the tunnel defect.

28. The device of claim 1, wherein the device is configured to conform to the substantially exact shape of the tunnel defect.

29. The device of claim 1, wherein the scaffold comprises a laser cut film.

30. The device of claim 1, wherein the scaffold comprises a sheet.

31. The device of claim 1, wherein the scaffold comprises a tube.