Transseptal closure of a patent foramen ovale and other cardiac defects
First Claim
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1. A treatment method for closing a patent foramen ovale comprising two flap-like tissue structures and which is located on an interatrial septum separating a right and left atrium of a heart;
- said method comprising the steps of;
a) detecting and locating the patent foramen ovale;
b) encasing the two flap-like tissue structures between one or more heat generating members;
b) energizing the one or more heat generating means; and
c) applying a therapeutic amount of energy to join the two overlapping tissue structures at one or more positions of contact.
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Abstract
The present invention provides for therapeutic treatment methods, devices, and systems for the partial or complete closure or occlusion of a patent foramen ovale (“PFO”). In particular, various methods, devices, and systems for joining or welding tissues, in order to therapeutically close a PFO are described. In yet another aspect of the invention, various methods, devices, and systems for the penetration of the interatrial septum enabling left atrial access are also provided.
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Citations
26 Claims
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1. A treatment method for closing a patent foramen ovale comprising two flap-like tissue structures and which is located on an interatrial septum separating a right and left atrium of a heart;
- said method comprising the steps of;
a) detecting and locating the patent foramen ovale;
b) encasing the two flap-like tissue structures between one or more heat generating members;
b) energizing the one or more heat generating means; and
c) applying a therapeutic amount of energy to join the two overlapping tissue structures at one or more positions of contact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- said method comprising the steps of;
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15. A treatment method for therapeutically closing a patent foramen ovale on an interatrial septum separating a right and left atrium of the heart, said treatment method comprising the steps of:
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a) determining the location of the patent foramen ovale; and
b) applying therapeutic amounts of energy to the septum at or near the location determined in step (a) to induce. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A catheter apparatus for closing a patent foramen ovale comprised of two overlapping tissue structures located on an interatrial septum which separates a right and left atrium of the heart, said apparatus comprising:
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a) a means for locating and detecting the patent foramen ovale;
b) a means for puncturing the interatrial septum at, or adjacent, the patent foramen ovale; and
c) one or more means for transseptally delivering therapeutic amounts of energy one or more tissue locations in order to affect joining of the overlapping tissue structures. - View Dependent Claims (25, 26)
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Specification