Source: http://www.google.com/patents/US20050131460?dq=6246862
Timestamp: 2017-10-22 22:49:27
Document Index: 415722926

Matched Legal Cases: ['art.\n3', 'art.\n4', 'art.\n14', 'art.\n15', 'art.\n19', 'Application No. 60']

Patent US20050131460 - Methods and apparatus for treatment of patent foramen ovale - Google Patents
Methods and apparatus for treatment of patent foramen ovale (PFO) generally involve use of a catheter having treatment means at its distal end. In some embodiments, the treatment means includes one or more abrasive needles used to abrade tissue adjacent the PFO to induce closure of the PFO. In other...http://www.google.com/patents/US20050131460?utm_source=gb-gplus-sharePatent US20050131460 - Methods and apparatus for treatment of patent foramen ovale
Publication number US20050131460 A1
Also published as CA2519636A1, EP1605848A2, EP1605848A4, EP2455037A1, US7637924, US8038672, US20040267191, US20060241581, US20120010608, WO2004087235A2, WO2004087235A3
Publication number 053274, 11053274, US 2005/0131460 A1, US 2005/131460 A1, US 20050131460 A1, US 20050131460A1, US 2005131460 A1, US 2005131460A1, US-A1-20050131460, US-A1-2005131460, US2005/0131460A1, US2005/131460A1, US20050131460 A1, US20050131460A1, US2005131460 A1, US2005131460A1
Inventors Hanson Gifford, Mark Deem, William Malecki
Patent Citations (99), Referenced by (132), Classifications (43), Legal Events (3)
US 20050131460 A1
Methods and apparatus for treatment of patent foramen ovale (PFO) generally involve use of a catheter having treatment means at its distal end. In some embodiments, the treatment means includes one or more abrasive needles used to abrade tissue adjacent the PFO to induce closure of the PFO. In other embodiments, treatment means includes an energy transmission member or more apertures for dispensing a fluid to contact and close the PFO. An exemplary method involves advancing a catheter device to position the distal end adjacent the PFO, exposing a plurality of abrasive needles from the catheter, advancing the needles through the PFO and/or tissue adjacent the PFO, and retracting the needles relative to the PFO to abrade at least a portion of the tissue.
advancing a closure device coupled with a distal end of a catheter device at least partway through the patent foramen ovale; and
releasing the closure device from the distal end of the catheter to induce closure of the patent foramen ovale,
wherein a portion of the released closure device disposed within the patent foramen ovale applies lateral force against tissues at opposite sides of the patent foramen ovale to bring tissue between the sides together.
2. A method as in claim 1, wherein the closure device is advanced through a right atrium of the heart.
3. A method as in claim 1, wherein the closure device is advanced through a left atrium of the heart.
4. A method as in claim 1, wherein the catheter is advanced over a guidewire.
5. A method as in claim 1, wherein delivering the closure device comprises:
releasing a left atrial portion of the closure device from the catheter device such that it contacts tissue of the patent foramen ovale in a left atrium of the heart; and
releasing a right atrial portion of the closure device from the catheter device such that it contacts tissue of the patent foramen ovale in a right atrium of the heart,
wherein a bridging portion of the closure device extends through the patent foramen ovale between the left atrial portion and the right atrial portion such that the closure device applies the lateral force.
6. A method as in claim 5, wherein the left atrial portion is released before the right atrial portion.
7. A method as in claim 5, wherein the right atrial portion is released before the left atrial portion.
removing the closure device from the patent foramen ovale through the catheter device; and
repositioning the closure device at least partially through the patent foramen ovale and in contact with tissue of the patent foramen ovale.
9. A method as in claim 8, wherein removing the closure device comprises:
advancing the catheter device over the closure device to straighten the closure device; and
retracting the catheter device to remove the closure device from the patent foramen ovale.
10. A method as in claim 9, wherein the left atrial portion is straightened before the right atrial portion.
11. A method as in claim 9, wherein the right atrial portion is straightened before the left atrial portion.
advancing a closure device coupled with a distal end of a catheter device through tissue adjacent the patent foramen ovale; and
wherein the released closure device apposes septum primum and septum secundum tissue of the patent foramen ovale to close the patent foramen ovale.
13. A method as in claim 12, wherein advancing the closure device comprises advancing the catheter device from the right atrium of the heart.
14. A method as in claim 12, wherein advancing the closure device comprises advancing the catheter device from the left atrium of the heart.
15. A method as in claim 12, wherein the closure device is advanced through septum primum tissue adjacent the patent foramen ovale.
16. A method as in claim 12, wherein the closure device is advanced through septum secundum tissue adjacent the patent foramen ovale.
17. A method as in claim 12, wherein the closure device is advanced through tissue of the atrial septum.
18. A method as in claim 17, wherein advancing the closure device comprises advancing the catheter device from a right atrium of the heart across the atrial septum to a left atrium of the heart.
19. A method as in claim 18, wherein advancing he closure device further comprises advancing the closure device from the left atrium of the heart into tissues of the patent foramen ovale.
20. Apparatus for treating a patent foramen ovale in a heart, the apparatus comprising:
at least one closure device removably coupled with the catheter distal end,
wherein the at least one closure device is expandable from a first dimension to a second larger dimension sized to engage the tissue of the patent foramen ovale, and wherein the at least one closure device in the larger dimension applies lateral force to tissue at opposite sides of the patent foramen ovale to bring tissues between the opposite sides together.
21. Apparatus as in claim 20, wherein the closure device can revert or be made to revert to its first dimension
22. Apparatus as in claim 20, wherein the closure device is biodegradable.
23. Apparatus as in claim 20, wherein the closure device comprises a material selected from the group consisting of Nitinol, stainless steel, platinum, gold, tantalum, a shape-memory or super-elastic material, and any alloy or combination thereof.
24. Apparatus as in claim 20, wherein the at least one closure device comprises a clip.
25. Apparatus as in claim 24, wherein the clip comprises a wire.
26. Apparatus as in claim 24, wherein the clip comprises a non-penetrating clip configured so as to not penetrate tissue.
27. Apparatus as in claim 24, wherein the clip comprises:
a first end portion for applying force against tissue of the patent foramen ovale in a left atrium of the heart;
a second end portion for applying force against tissue of the patent foramen ovale in a right atrium of the heart; and
a bridging portion between the two end portions for applying the lateral force to tissue at opposite sides of the patent foramen ovale.
28. Apparatus as in claim 20, wherein the closure device further comprises a tissue solder or adhesive to hold together and seal the patent foramen ovale.
29. Apparatus as in claim 20, wherein the closure device comprises a spiral needle.
30. Apparatus as in claim 20, wherein the catheter is passable over a guidewire.
31. Apparatus for treating a patent foramen ovale in a heart comprising a clip expandable from a first dimension to a second larger dimension sized to engage the tissue of the patent foramen ovale, wherein the clip in the larger dimension applies lateral force to tissue at opposite sides of the patent foramen ovale to bring tissues between the opposite sides together.
32. Apparatus as in claim 31, wherein the clip can revert or be made to revert to its first dimension
33. Apparatus as in claim 31, wherein the clip is biodegradable.
34. Apparatus as in claim 31, wherein the clip comprises a material selected from the group consisting of Nitinol, stainless steel, platinum, gold, tantalum, a shape-memory or super-elastic material, and any alloy or combination thereof.
35. Apparatus as in claim 31, wherein the clip comprises a wire.
36. Apparatus as in claim 31, wherein the clip comprises a non-penetrating clip configured so as to not penetrate tissue.
37. Apparatus as in claim 31, wherein the clip comprises:
This application is a continuation of U.S. patent application Ser. No. 10/811,228 (Attorney Docket No. 022128-000400US), filed Mar. 26, 2004, which claims priority from U.S. Provisional Patent Application No. 60/458,854 (Attorney Docket No. 022128-000100US), filed on Mar. 27, 2003; No. 60/478,035 (Attorney Docket No. 022128-00010US), filed on Jun. 11, 2003, and No. 60/490,082 (Attorney Docket No. 022128-000120US), filed on Jul. 24, 2003, the full disclosures of which are incorporated herein by reference. This application is related to U.S. patent application Ser. No. 10/665,974 (Attorney Docket No. 022128-000300US), filed on Sep. 16, 2003; Ser. No. 10/679,245 (Attorney Docket No. 022128-000200US), filed Oct. 2, 2003; and Ser. No. 10/787,532 (Attorney Docket No. 022128-000130US), filed Feb. 25, 2004, the full disclosures of which are incorporated herein by reference.
Apparatus and methods according to the present invention may rely on energy, in various forms, to seal the PFO, either with or without an associated implant. Implants, such as patches, self-closing elements, or the like, may be welded into place using energy in a variety of ways. In various embodiments, any suitable type or configuration of welding substance, matrix, patch or the like may be used to enhance application of energy for providing PFO closure. Devices and methods using various types of energy and tissue welding substances to close PFOs are described fully in U.S. patent application Ser. No. 10/665,974 (Attorney Docket No. 22128-000300US), which was previously incorporated by reference.
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Cooperative Classification A61B2018/00291, A61B2017/0649, C08L2201/12, A61B2018/00619, A61B2017/00579, A61B18/1492, A61B17/0644, A61B17/0057, A61B2017/00243, A61B17/0218, A61B2090/3614, A61N7/022, A61B2017/0641, A61B2018/00285, A61B2017/00615, A61B2018/00791, A61B2017/00623, A61B2017/00592, A61B2017/0061, A61B2018/00875, A61B2018/1425, A61B2018/00351, A61B2017/00668, A61B2018/0063, A61B2018/00702, A61B18/1477, A61B2018/00261, A61B2018/00011, A61B2018/1472, A61B17/10, A61B17/083, A61B2017/0645, A61B2017/00867, A61B18/20, A61B2017/00575, A61B18/18, A61B2017/00597, A61B2018/00214