Shock wave generator for an apparatus for non-contacting disinte

Details Shock wave generator for an apparatus for non-contacting disinte Shock wave generator for an apparatus for non-contacting disinte

1987-05-29

1989-01-03

Smith, Ruth S.

Surgery

Truss

Perineal

367175, A61B 1722

Patent

active

047949147

ABSTRACT:
The invention is directed to a shock wave generator for an apparatus for non-contacting disintegration of calculi in the body of a life form which includes a housing filled with a liquid, a membrane closing the housing and connected thereto along the edge thereof, and a device for pulse-like driving of the membrane. In order to suppress overstressing of the membrane and deformations of the membrane which are diletorious in view of the focussability of the shock waves, a tubular spring resilient in the moving direction of said membrane are provided between said housing and said membrane, said membrane being connected to said housing with said resilient spring in a fashion essentially free of bending moment.

REFERENCES:
patent: 2561368 (1951-07-01), Hayes et al.
patent: 2978669 (1961-04-01), Harris
patent: 3495211 (1970-02-01), Harris
patent: 4655220 (1987-04-01), Hahn et al.
patent: 4697588 (1987-10-01), Reichenberger

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