Apparatus for acoustic irradiation of pathological changes in a

Details Apparatus for acoustic irradiation of pathological changes in a Apparatus for acoustic irradiation of pathological changes in a

1986-07-28

1987-10-06

Cohen, Lee S.

Surgery

Truss

Perineal

128328, A61B 1722

Patent

active

046975799

ABSTRACT:
The present invention is directed to a method and apparatus for acoustic irradiation of a pathological change in a patient comprising a housing containing a shock wave generator positioned in a fluid-filled focusing chamber closed by a membrane characterized by a ring of elastic material being secured to the housing and surrounding the membrane and projecting beyond the membrane while in an idle position. The ring is provided with a channel system to allow evacuation of air from the space between the ring, membrane and the skin of the patient and also for introducing a coupling fluid into this space. The housing includes a channel for introducing additional fluid into the fluid-filled focusing chamber to cause the membrane to be expanded into the space and to engage the skin of the patient with a thin film of the coupling fluid disposed therebetween.

REFERENCES:
patent: 3237623 (1966-03-01), Gordon
patent: 3942531 (1976-03-01), Hoff et al.
patent: 4135497 (1979-01-01), Meyers et al.
patent: 4355643 (1982-10-01), Laughlin et al.
patent: 4530358 (1985-07-01), Forssmann et al.
patent: 4620545 (1986-11-01), Shene et al.

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