EP 0212352 B1 19890927 - ULTRASONIC GENERATOR
Title (en)
ULTRASONIC GENERATOR
Publication
Application
Priority
DE 3528676 A 19850809
Abstract (en)
[origin: US4718421A] An ultrasound generator for acoustic irradiation of pathological changes of a human body comprises a planarly fashioned piezo-electric transducer which is acoustically coupled to an acoustical lens on one surface by a soft metal layer and is acoustically coupled on the opposite surface by a second soft metal layer to a dampening member. The soft metal layers act as both acoustically coupling layers and as electrodes for the piezo-electric transducer. The piezo-electric transducer can be formed of either a plurality of layers which are spaced apart by soft metal layers acting as electrodes, a single piezo-electric plate, or a plurality of plates arranged side by side in the same plane.
IPC 1-7
IPC 8 full level
A61B 17/22 (2006.01); A61B 17/225 (2006.01); A61B 18/00 (2006.01); G10K 11/02 (2006.01); G10K 11/30 (2006.01)
CPC (source: EP US)
G10K 11/30 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0212352 A1 19870304; EP 0212352 B1 19890927; DE 3665949 D1 19891102; JP S62164011 U 19871019; US 4718421 A 19880112
DOCDB simple family (application)
EP 86110398 A 19860728; DE 3665949 T 19860728; JP 11974286 U 19860804; US 89010386 A 19860728