Selective organ cooling catheter with guidewire apparatus and temperature-monitoring device
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United States of America Patent
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Apr 24, 2012
Grant Date -
Mar 20, 2008
app pub date -
Nov 13, 2007
filing date -
Jan 23, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A guidable catheter for heating or cooling fluid in a feeding vessel in a vasculature of a patient includes a heat transfer element having exterior surface irregularities to create turbulence in a surrounding fluid. A supply catheter delivers a working fluid to an interior of the heat transfer element, and a return catheter returns a working fluid from the interior of the heat transfer element. A guidewire tube is provided adjacent one of the supply catheter or the return catheter and runs substantially parallel to the axis of the guidable catheter to receive a guidewire disposed within the guidewire tube. A temperature-monitoring device is disposed at the distal tip of the guidewire. Feedback is provided to control the temperature of a source of working fluid.
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