Cryosurgical apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 6, 1993
Grant Date -
N/A
app pub date -
Jul 19, 1991
filing date -
Dec 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cryosurgical probe for freezing human or animal tissue in a surgical procedure utilising the Joule Thomson effect. The probe is provided with a valve arrangement which enables selective purging and freezing cycles to be employed in rapid succession, and remote from the Joule-Thomson nozzle. In this way purging is limited to those parts of the probe which are affected by moisture contamination during the normal pre-sterilising process, and without interference with the Joule-Thomson nozzle.
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