Methods and systems for determining physiologic characteristics for treatment of the esophagus
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United States of America Patent
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Issued Date -
Oct 28, 2004
app pub date -
Jan 9, 2004
filing date -
Nov 16, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system for measuring physiologic characteristics for treating abnormal mucosa in the esophagus comprises a sizing device having an inflatable balloon on a distal end of a catheter that is inflated with an expansion medium to expand the balloon to engage the wall of the esophagus so that the internal cross-section can be calculated or measured. The sizing device may also include an infusion source for delivering the expansion medium and means for measuring the amount and pressure of the expansion medium inside the catheter. The system also comprises one or more energy delivery devices for injuring or ablating the mucosal layer of the esophageal wall, the energy delivery devices having an expandable member selected to engage the esophageal wall to the appropriate dimension as determined by the sizing device.
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