Cryosurgical device
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United States of America Patent
Stats
-
Jul 14, 1981
Grant Date -
N/A
app pub date -
Jul 12, 1979
filing date -
Jul 15, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention concerns a cryosurgical instrument with a probe for cooling limited zones of biological tissues, of which the thermally well-conducting tip has a hollow interior cross-section, into which a supply conduit connects with a constricted exit gap, through which a gas for cooling of the tip by means of the Joule-Thomson effect can be supplied by flow through the exit gap and can be led away therefrom through a coaxial discharge conduit open eventually to the atmosphere, the instrument also being provided with a device for control of the temperature of the probe tip.
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