05402792 is referenced by 72 patents and cites 5 patents.

An ultrasonic medical apparatus, particularly convenient for use inside a body cavity, includes an applicator having an ultrasonic transducer, which may be attached to an acoustic lens such that the emitted ultrasonic waves are focused at two or more different positions. For this purpose, the wave-emitting surface of the transducer, or the acoustic lens attached to it, is partitioned into concave surface elements which may be in a concentric annular arrangement and may each have a different radius of curvature and a different center of concavity. An apparatus thus structured can be made compact and hence is convenient for use inside a body cavity.

Title
Ultrasonic medical apparatus
Application Number
8/213135
Publication Number
5402792
Application Date
March 15, 1994
Publication Date
April 4, 1995
Inventor
Tatsuo Kimura
Kyoto
JP
Agent
Heller Ehrman White & McAuliffe
Assignee
Shimadzu Corporation
JP
IPC
A61B 8/00
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