Surgery – Diagnostic testing – Measuring anatomical characteristic or force applied to or...
Reexamination Certificate
2008-05-20
2008-05-20
Hindenburg, Max F. (Department: 3736)
Surgery
Diagnostic testing
Measuring anatomical characteristic or force applied to or...
C600S300000
Reexamination Certificate
active
07374547
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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Bravo pH Capsule With Delivery System, User Guide, Medtronic, 2002.
Bravo pH Receiver, User Guide, Medtronic 2002.
Hindenburg Max F.
Medtronic Inc.
Shumaker & Sieffert PA
Towa Rene
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