Tissue-viability monitoring using an oxygen-tension sensor
conference paper
Many patients still die every year as a result of anastomotic leakage after surgery. An objective aid to monitor the anastomotic site pre- and postoperatively and detect leakage at an early stage is needed. We propose a miniature measurement system to detect adequate tissue oxygenation pre- and postoperatively (continuously for 7 days) on the colon. The complete sensor chip should include an oxygen-tension sensor (pO<sub>2</sub>), a carbon dioxide tension sensor (pCO<sub>2</sub>) and a temperature sensor. The work presented here focuses on the measurements done with the oxygen-tension and temperature sensors. In-vitro measurements have been initially performed to test the sensor system and in-vivo tests were carried out on the kidney and the intestines of male wistar rats. The results obtained so far have shown the suitability of this technique for clinical application, therefore sensor-system miniaturisation is presently underway. © 2008 Springer-Verlag.
Topics
TNO Identifier
425212
ISSN
18650929
ISBN
3540922180 9783540922186
Publisher
Springer
Source title
Biomedical Engineering Systems and Technologies. BIOSTEC 2008. Communications in Computer and Information Science
Editor(s)
Fred, A.
Filipe, J.
Gamboa, H.
Filipe, J.
Gamboa, H.
Place of publication
Berlin
Pages
109-122
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