Devices and methods for treating cardiac tissue

• US 9,259,267 B2
• Filed: 09/06/2006
• Issued: 02/16/2016
• Est. Priority Date: 09/06/2005
• Status: Active Grant

• Current Assignee: WL Gore and Associates Incorporated (W.L. Gore and Associates)
• Original Assignee: WL Gore and Associates Incorporated (W.L. Gore and Associates)
• Inventors: Forde, Sean
• Primary Examiner(s): Koharski, Christopher D
• Assistant Examiner(s): D ABREU, MICHAEL JOSEPH
• Application Number:
  US11/516,144
• Publication Number:
  US 20070066864A1
• Time in Patent Office: 3,450 Days
• Field of Search: 607/17, 607/33, 607101-104
• US Class Current: 1/1
• 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 18/00 Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2018/00291 using suction
• CPC Class Codes: A61B 2018/00351 Heart
• CPC Class Codes: A61B 2018/1861 with an instrument inserted into a body lumen or cavity, e.g. a catheter
• CPC Class Codes: A61B 2018/2238 with means for selectively laterally deflecting the tip of the fibre
• CPC Class Codes: A61B 2018/2244 Features of optical fibre cables, e.g. claddings

Abstract

The invention generally relates to devices and methods for treating cardiac tissue, including percutaneous closure of cardiac openings such as a patent foramen ovale (PFO) and obliteration of the cardiac cul-de-sacs. The invention includes a device having at least one elongated member. The elongated member has a first material and a second material interwoven with at least a portion of the first material. The second material is capable of transferring energy to tissue in need of treatment.

Claims

1. A device for treating cardiac tissue, comprising:

a first sheath comprising a distal end, a proximal end and a lumen extending between the distal end and proximal end of the sheath;

an elongated member slidably disposed within the lumen of the first sheath, the elongated member having two ends both affixed at a proximal end to form a closed loop having a hairpin turn at a distal end, wherein the elongated member is adapted to unfurl from the lumen of the first sheath by advancing one affixed end of the elongated member toward the distal end of the elongated member thereby advancing the hairpin turn beyond the distal end of the first sheath, the elongated member further comprising a first substantially non-conductive material, and a second energy transferring material at a portion of the elongated member, wherein when the elongated member is unfurled from the lumen of the first sheath, the portion of the elongated member with the second energy transferring material forms the hairpin turn extending beyond the distal end of the first sheath; and

an actuator operatively joined to the proximal end of the elongated member, wherein when the elongated member is unfurled and the device is actuated, the second energy transferring material is rotated about the hairpin turn.

2. The device of claim 1 wherein movement of the actuator causes the elongated member to unfurl from the lumen of the first sheath.

3. The device of claim 2 wherein extension of the elongated member in the distal direction places at least a portion of the second energy transferring material in contact with the cardiac tissue in need of treatment.

4. The device of claim 1 wherein the second energy transferring material comprises a metal selected from the group consisting of copper, gold, platinum, silver, iron, lithium, cobalt, nickel, and chromium, or a combination thereof.

5. The device of claim 1 where in the second energy transferring material comprises an energy transferring ceramic or glass material.

6. The device of claim 1 wherein the second energy transferring material is adapted to transfers energy selected from the group consisting of microwave, infrared, visible light waves, ultraviolet light waves, x-ray, gamma ray, and cosmic ray.

7. The device of claim 1 wherein the second energy transferring material is adapted to transfer radio frequency energy.

8. The device of claim 1 wherein the second energy transferring material is selected from the group consisting of a thread, filament, cord, rope, ribbon and sheet.

9. The device of claim 1 wherein at least a portion of the elongated member comprises a straight wire or bristles.

10. The device of claim 1 wherein the second energy transforming material comprises a filament.

11. The device of claim 1 wherein at least a portion of the elongated member comprises a sleeve.

12. The device of claim 1 wherein at least a portion of the elongated member comprises a braid, coil, knot, spiral or zigzag.

13. The device of claim 1 wherein at least a portion of the elongated member comprises a tube or a cone.

14. The device of claim 1 wherein the elongated member comprises a lumen.

15. The device of claim 1 wherein movement of the actuator causes movement of the elongated member in an axial direction in relation to the first sheath.

16. The device of claim 1 wherein at least one end of the elongated member is affixed to the actuator.

17. The device of claim 1 wherein movement of the actuator causes the elongated member to retract inside the lumen of the first sheath.

18. The device of claim 1 wherein the elongated member forms a closed loop wherein the two ends of the single wire joined to each other at the proximal end of said elongated member.

19. The device of claim 1 wherein at least a portion of the elongated member comprises a single wire.

20. The device of claim 1 wherein at least a portion of the second energy transferring material is interwoven with at least a portion of the first substantially non-conductive material.