Transmyocardial revascularization using radiofrequency energy
First Claim
1. A method of forming a revascularization channel in a desired region of a wall of a patient'"'"'s heart, comprising:
- a) providing an elongated shaft having proximal and distal ends and an RF energy emitter located at the distal end;
b) introducing the elongated shaft into the body of the patient and directing the RF energy emitter to the desired region of the heart wall wherein the revascularization channel is to be formed; and
c) supplying RF energy to the RF energy emitter to form a revascularization channel in a myocardial layer of the patient'"'"'s heart wall.
8 Assignments
0 Petitions
Accused Products
Abstract
The invention is directed to a system and method for revascularization of a patient'"'"'s heart tissue by at least one burst of RF energy over an interval of about 1 to about 500 msec, preferably about 30 to about 130 msec. The device preferably has an elongated insulated, electrical conducting shaft with an uninsulated distal tip which is configured to emit RF energy. A method is described for myocardial revascularization of a human heart in which an elongated flexible device is used which includes a radiofrequency ablation device. In some embodiments, the device is configured to be introduced percutaneously, on other embodiments, the device is configured to be introduced intraoperatively. The RF energy emitter is advanced to a position adjacent a desired area of the heart wall. The device is activated, moving tissue to form a revascularization channel.
-
Citations
8 Claims
-
1. A method of forming a revascularization channel in a desired region of a wall of a patient'"'"'s heart, comprising:
-
a) providing an elongated shaft having proximal and distal ends and an RF energy emitter located at the distal end; b) introducing the elongated shaft into the body of the patient and directing the RF energy emitter to the desired region of the heart wall wherein the revascularization channel is to be formed; and c) supplying RF energy to the RF energy emitter to form a revascularization channel in a myocardial layer of the patient'"'"'s heart wall. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of forming a revascularization channel in a desired region of a wall of a patient'"'"'s heart, the wall having an inner endocardium layer, an outer epicardium layer and an intermediate myocardium layer between the endocardium and the epicardium layers, comprising:
-
a) providing an elongated device having proximal and distal ends and a means to form a revascularization channel comprising radiofrequency ablation means located at the distal end; b) introducing the device into the body of the patient and directing the distal end of the device to the desired region of the wall wherein the revascularization channel is to be formed; and c) supplying radiofrequency energy to the radiofrequency ablation means to form a revascularization channel in the myocardium layer.
-
Specification