The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2000
Filed:
Mar. 07, 1997
Randy J Kesten, Mountain View, CA (US);
Cardiogenesis Corporation, Sunnyvale, CA (US);
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.