Air tonometry measurement of intraluminal gastrointestinal...

Details Air tonometry measurement of intraluminal gastrointestinal... Air tonometry measurement of intraluminal gastrointestinal...

A - Human Necessities

61

B

A61B 5/00 (2006.01)

Patent

CA 2161087

A method and apparatus for measuring or moni- toring pCO2, and optionally pO2, on a real-time basis, in the stomach or the intestine using air tonometry. The intraluminal measurements are made using a catheter (14) having a pCO2 sensor (12), and optionally a PO2 sensor, at its tip (14a) for in situ measurements, or by circulating a fixed amount of air through the catheter (14) with measurement occurring at the proximal end (14b) of the catheter (14). Instrumentation (16) sup- porting the sensor may be adapted for location within a patient or external to a patient.

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