Cryosurgical instrument with redirected flow
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United States of America Patent
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Nov 26, 2013
Grant Date -
Sep 13, 2012
app pub date -
Dec 29, 2011
filing date -
Mar 9, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A cryosurgical instrument that includes: an external shaft with a cryotip; a heat exchanger that cools a portion of the external shaft and the tip when cryogen is received thereby; and a flow diverter that receives a flow of cryogen, that splits the received flow of cryogen into two or more split cryogen flows, and that delivers the split cryogen flows to the heat exchanger, the flow diverter including a first passage with one or more inlet ports at an upstream side of the diverter that receive the flow of cryogen and two or more outlet ports at a downstream side of the diverter and in fluid communication with the heat exchanger.
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