Method of thawing cryosurgical apparatus
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United States of America Patent
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May 27, 1997
Grant Date -
N/A
app pub date -
May 31, 1994
filing date -
Nov 5, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of thawing of cryosurgical apparatus, and in particular a cryosurgical probe, subsequent to a freezing process involves the interuption of the cryogen supply to the probe followed by the introduction of a warmed inert gas. The gas is circulated within the probe cryogen circulation system to affect thawing of the apparatus so that the probe may easily be withdrawn from the body. The gas, which may be nitrogen, is preferably passed through a heat exchange arrangement before being introduced into the probe.
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