Delivery device for an acidity monitoring system
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United States of America Patent
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May 20, 2008
Grant Date -
Oct 28, 2004
app pub date -
Apr 25, 2003
filing date -
Apr 25, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention is directed to techniques for delivering a capsule for sensing acidity to a location along the esophagus via a delivery device that detects pressure variations to identify a lower esophageal sphincter (LES). More specifically, the distal end of a probe of the delivery device enters the esophagus, and extends through the esophagus into the stomach via the LES. The distal end of the probe is slowly retracted back into the esophagus and the pressure variation within a pressure sensitive chamber of the delivery device, caused by the LES, is detected to identify the location of the LES. As described, the pressure sensitive chamber can comprise a balloon filled with air or an airtight chamber formed within a distal end of the probe. In either case, the pressure sensitive chamber deforms due to the pressure of the LES thereby causing a pressure variation used to identify the location of the LES.
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