Apparatus and method of myocardial revascularization using ultra

Details Apparatus and method of myocardial revascularization using ultra Apparatus and method of myocardial revascularization using ultra

1997-03-07

2000-07-11

Manuel, George

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

606 15, A61B 1736

Patent

active

060865342

ABSTRACT:
An apparatus and method of intraoperative myocardial revascularization of the myocardium of the heart of a patient. A catheter apparatus comprising an elongated catheter, an elongated laser wave guide slidably disposed within a lumen of the catheter, and an ultrasonic transducer secured to the distal end of the elongated laser wave guide, is inserted into the patient. The distal end of the lasing apparatus is guided to the portion of the patient's heart wall in which channels will be formed, and the ultrasonic transducer is activated to create brief pulses of ultrasonic energy. The transducer receives a returned ultrasonic echo from the heart wall. The ultrasonic echo is processed by signal processing elements. The processed ultrasonic echoes are displayed to show the distance between the epicardial and endocardial surfaces of the portion of the heart wall in which the revascularization energy is to be discharged, and the distance between the operative distal end of the myocardial revascularization device and such endocardial and epicardial surfaces. After distance measurements have been performed, channels are formed in the heart wall.

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