Device for generating sound impulses for medical applications

Details Device for generating sound impulses for medical applications Device for generating sound impulses for medical applications

1994-03-04

1996-08-27

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

055491103

ABSTRACT:
A device, which is especially made for the generation of shockwaves to detect inner-body objects, is equipped with piezo-ceramic transducer elements which act as an electro-acoustical transducer which can be driven by a high-voltage source with high-voltage impulses to generate shock waves or sound impulses through directed deformations and length changes of the transducer elements is dependent on the given polarization of the transducer elements and the polarity of the high-voltage impulses. The sound energy emitted by the device may then be especially high if the transducer elements are excited and biased with a bias potential before the appearance of a high-voltage impulse and the polarity of the bias potential is opposite to that of the high-voltage impulse.

REFERENCES:
patent: 5101133 (1992-03-01), Schafer
patent: 5111805 (1992-05-01), Jaggy et al.
patent: 5410205 (1995-04-01), Gururaja

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