Therapeutic cryoablation system
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United States of America Patent
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Aug 11, 2015
Grant Date -
Feb 6, 2014
app pub date -
Aug 3, 2012
filing date -
Aug 3, 2012
priority date (Note) -
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Abstract
A cryoablation system has a gas source which provides a working gas at room temperature and at a constant set pressure. The system also includes a liquid generator which is coupled to the gas source to receive the working gas, and which then generates a working cryogen fluid in a liquid phase that operates at a temperature and pressure that lies on its Joule-Thomson Inversion Curve, with the Joule-Thomson coefficient maintained within the range 0.00±0.08 degrees F./Atmosphere. The system also includes a catheter coupled to the liquid generator for receiving the working cryogen, the catheter having a distal section which delivers the working cryogen to a treatment location.
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