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A new method for continuous tonometric pCO2 measurement: in vitro studies
Umeå University Hospital, Department of Surgery.
Umeå University Hospital, Department of Surgery.
Umeå University Hospital, Department of Surgery.
University Hospital of Umeå, Department of Biomedical Engineering.
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1999 (English)In: Physiological Measurement, ISSN 0967-3334, E-ISSN 1361-6579, Vol. 20, no 2, p. 129-36Article in journal (Refereed) Published
Abstract [en]

The available methods for tonometric pCO2 measurement only provide the possibility of performing intermittent registrations. A new method allowing continuous tonometric pCO2 measurement has been developed and tested in an in vitro model. A standard tonometer for intestinal pCO2 measurement was modified to allow continuous perfusion of the balloon with physiological saline solution in a closed system. The pCO2 in the system was determined in a specially sructed measurement chamber with a TCM20 percutaneous pCO2 monitor. In this in vitro model the tonometer balloon was placed in a saline bath with a constant pCO2 concentration and the measurements from the closed circulating system were compared with those obtained from a standard tonometer placed in the same bath. In 8 and 24 h experiments the circulating system measured the pCO2 value as accurately and reliably as traditional tonometry. This study indicates that the new method makes continuous monitoring of pCO2 possible

Place, publisher, year, edition, pages
1999. Vol. 20, no 2, p. 129-36
National Category
Other Medical Engineering
Research subject
Medical Engineering for Healthcare
Identifiers
URN: urn:nbn:se:ltu:diva-5307DOI: 10.1088/0967-3334/20/2/002Local ID: 35ec1f70-0e03-11dc-8745-000ea68e967bOAI: oai:DiVA.org:ltu-5307DiVA, id: diva2:978181
Note
Upprättat; 1999; 20070529 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Lindahl, Olof

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