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.
250 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