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A Transcutaneous P o2 Electrode Incorporating a Thermal Clearance Local Blood Flow Sensor
Author(s) -
Parker D.,
Delpy D.,
Reynolds E. O. R.,
Andrew D. ST.
Publication year - 1978
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/j.1399-6576.1978.tb01390.x
Subject(s) - thermistor , medicine , electrode , cathode , blood flow , anode , biomedical engineering , electrical engineering , cardiology , chemistry , engineering
Several possible methods for estimating and recording skin blood flow by thermal clearance are presented. The method chosen for trial with an O 2 electrode was to thermoregulate an annular anode which covered the cathode, surrounding it like a heat shell, and to measure the cooling of the cathode by blood flow, by implanting a thermistor near the surface of the cathode. This device is far less affected by ambient temperature than is simple measurement of heating power in an uninsulated tcP o2 electrode.