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:
Jan. 07, 1992
Filed:
Apr. 04, 1990
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A shock wave lithotrity apparatus comprises an applicator which includes a first transducer for generating ultrasonic waves and for converging the ultrasonic waves on a focal point to treat an object, a second transducer for generating ultrasonic waves at a low level for echography, and a water bag for transmitting the ultrasonic waves to the object. A lithotrity unit and a B-mode imaging unit are respectively connected to the first and second transducers. When a position mode is selected, the second transducer is driven by the B-mode imaging unit and the echography is displayed and the first transducer is driven by the lithotrity unit at a low voltage to detect the intensity of the echo signal. The degree of focus-calculus matching is calculated based on the intensity. The operator adjusts the position of the first transducer by referring to the echography and the matching degree. The operation of a trigger switch is disabled in order to inhibit the drive of the first transducer at a high level in the positioning mode. In a lithotrity mode the first transducer is driven at the high level in order to generate the shock wave at the focus point upon the operation of the trigger switch.