Apparatus and method for assessing transmurality of a tissue ablation
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United States of America Patent
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-
Mar 20, 2007
Grant Date -
Nov 27, 2003
app pub date -
Feb 19, 2003
filing date -
Feb 19, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An instrument is provided to assess the transmurality of an ablation lesion from a first surface of a targeted biological tissue to an opposed second surface thereof. The instrument includes at least a first electrode operably attached to an ablation instrument adapted to engage a tissue first surface, and at least a second electrode adapted to engage a tissue second surface, the at least second electrode positioned generally opposed to the at least first electrode. Alternatively, the at least second electrode may be adapted to be placed within a chamber of an organ. These electrodes each measure at least one of conduction time, conduction velocity, phase angle, and impedance through at least a portion of the targeted tissue to determine the transmurality of the ablation lesion.
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