Cryosurgical instrument with enhanced heat transfer
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United States of America Patent
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Jun 28, 2011
Issued Date -
N/A
app pub date -
Mar 25, 2010
filing date -
Mar 25, 2010
priority date (Note) -
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Abstract
Cryosurgical instruments and methods utilizing improved heat transfer characteristics. A cryosurgical device includes: a tubular housing; a cryogen supply passage; a heat exchange enhancing member in the housing, disposed along a longitudinal axis of the housing; an annular cooling passage between the heat exchange enhancing member and the tubular housing; a tip cooling and cryogen flow directing section that transmits a temperature of a cryogen flow to the tip, and an insulation element in the tubular housing.
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