Gauging system for monitoring channel depth in percutaneous endocardial revascularization
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United States of America Patent
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Apr 13, 1999
Grant Date -
N/A
app pub date -
Oct 24, 1996
filing date -
Oct 24, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gauging system for monitoring channel depth in percutaneous endocardial revascularization surgery includes a catheter for percutaneous insertion into a heart chamber, including a source of tissue ablative energy for ablating a part of the wall of the heart chamber where a channel is to be created; a sensor device proximate the distal end of the catheter for sensing a boundary of the heart wall proximate the channel; and a detection circuit, responsive to the sensor device, for determining the position of the terminus of the channel in the heart chamber; alternatively, a mechanical stop extending radially beyond the distal tip may be used for physically limiting penetration of the catheter tip into the drilled channels.
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