NDLI: Development of a flexible PCO/sub 2/ microsensor for gastrointestinal pHi monitoring

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Development of a flexible PCO/sub 2/ microsensor for gastrointestinal pHi monitoring

Content Provider	IEEE Xplore Digital Library
Author	Sacristan, E. Peura, R.A. Shahnarian, A. Fiddian-Green, R.
Copyright Year	1991
Description	Author affiliation: Dept. of Biomed. Eng., Worcester Polytech. Inst., MA, USA (Sacristan, E.)
Abstract	The intramucosal pH (pHi) is indirectly determined by measuring the PCO/sub 2/ in the lumen of the gut, and the bicarbonate ion concentration in an arterial blood sample; the pHi is then calculated using the Henderson-Hasslebach equation. A microsensor is developed to measure the intramural PCO/sub 2/. The microsensor is designed as part of a flexible catheter for insertion into the colon or stomach. The sensor satisfied all accuracy and performance criteria after being tested in vivo. The in vivo performance was validated in pigs, with induced intestinal ischemia by comparing the sensor pHi measurements to those determined using a balloon tanometer and a needle pH electrode directly placed in the mucosal tissue.<>
Starting Page	141
Ending Page	143
File Size	275906
Page Count	3
File Format	PDF
ISBN	0780300300
DOI	10.1109/NEBC.1991.154620
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-04-04
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microsensors In vivo Blood Equations Catheters Colon Stomach Testing Intestines Ischemic pain
Content Type	Text
Resource Type	Article

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