Cryosurgical spraying apparatus

Details Cryosurgical spraying apparatus Cryosurgical spraying apparatus

1991-03-14

1992-03-24

Pellegrino, Stephen C.

Surgery

Instruments

Cyrogenic application

606 20, 62 521, 62293, 222209, A61B 1736

Patent

active

050984284

ABSTRACT:
An insulated, compact, mobile crysosurgical instrument is provided that has no moving parts in contact with a liquefied gas coolant retained in an insulated container. Upon interrupting normal venting from the container, the liquefied gas coolant will build up a pressure in the container which may be increased by a squeeze pressure device. That pressure will cause the liquefied gas coolant to spray from a nozzle until normal venting is restored.

REFERENCES:
patent: 3534739 (1970-10-01), Bryne
patent: 3651813 (1972-03-01), Bryne
patent: 3739956 (1973-06-01), Reynolds
patent: 3889681 (1975-06-01), Waller et al.
patent: 4043341 (1977-08-01), Tromovitch
patent: 4376376 (1983-03-01), Gregory
patent: 4383622 (1983-05-01), Guth

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