Transcutaneous oxygen and local perfusion measurement

Details Transcutaneous oxygen and local perfusion measurement Transcutaneous oxygen and local perfusion measurement

1979-06-21

1981-09-22

Cohen, Lee S.

Surgery

Truss

Pad

204195B, 204195P, 219209, 219501, A61B 500

Patent

active

042904315

ABSTRACT:
An apparatus and method for measuring and monitoring blood oxygen content and local perfusion factor. A transcutaneous gas measurement probe is heated by application of an electric current to a semi-conductor device housed therein. The heat developed in a semi-conductor device heats the probe to a constant temperature under the control of a temperature monitoring and regulating circuit and the amount of power applied to the semi-conductor device is measured by multiplying the current conducted through the semiconductor device by the voltage across it to provide a measurement of local perfusion factor. An alerting device is provided to signal when blood oxygen content and local perfusion factor are outside a predetermined acceptable range.

REFERENCES:
patent: 3308221 (1967-03-01), Hilbiber
patent: 3320407 (1967-05-01), Holmes
patent: 3450863 (1969-06-01), Scholl
patent: 3789853 (1974-02-01), Reinhard
patent: 4114602 (1978-09-01), Huch et al.
patent: 4126137 (1978-11-01), Archibald
Vesterager, "Transcutaneous PO2 Electrode", Scand J. Clin. Lab. Invest., 37 (Supp. 146), 27-30, 1977.
Huch et al., "Transcutaneous Measurement of . . . PO2", J. Perinct. Med., 1 (1973), 183.
Vesterager, "Continuous Transcutaneous . . . PO2", Measurement of O2, 1976, pp. 260-269.
Eberhard et al., "Method for Cutaneous . . . presure", Biomed. Technik., vol. 18, No. 6, pp. 216-221, Dec. 1973.

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