Piezoelectric shock wave generator

Details Piezoelectric shock wave generator Piezoelectric shock wave generator

1991-10-15

1992-06-09

Cohen, Lee S.

Surgery

Truss

Perineal

12866203, A61B 1722

Patent

active

051198010

ABSTRACT:
A piezoelectric shock wave generator for use in medical equipment includes a plurality of piezoelectric elements being electrically interconnected to operate in parallel and mounted on a common carrier of curved configuration; a coupler medium couples shock waves as generated by these piezoelectric generators into the body of a living being, the improvement includes electrical insulation between the piezoelements being in fluid, i.e. liquid or gaseous state, in that each piezoelectric element is surrounded by the fluid in any direction towards any other piezoelectric element; the front ends of the piezoelectric elements may be physically separated, so that the coupler fluid and the isolating fluid are the same, and having a common flow space; alternatively, a membrane in front of all said piezoelectric elements provides electrical interconnection between them and physically separates the isolating fluid from the coupler liquid.

REFERENCES:
patent: 4208602 (1980-06-01), Stoller
patent: 4433396 (1984-02-01), Johnson et al.
patent: 4462092 (1984-07-01), Kawabuchi et al.
patent: 4686408 (1987-08-01), Ishiyama
patent: 4783888 (1988-11-01), Fujii et al.
patent: 5050588 (1991-09-01), Grey et al.

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