Process and arrangement for determining the perfusion factor of

Details Process and arrangement for determining the perfusion factor of Process and arrangement for determining the perfusion factor of

1976-07-12

1978-09-19

Michell, Robert W.

Surgery

Truss

Perineal

128 21E, A61B 500

Patent

active

041146026

ABSTRACT:
A process and an arrangement for determining the perfusion factor of a gas in a sample, particularly of oxygen dissolved in blood flowing through biological tissue, includes measuring the amount of gas diffused from the sample by means of a polarographic cell which comprises a reference electrode having a heat conductive surface which is adapted to be placed in heat-transmitting relationship over a portion of the sample, and a sensor electrode in electrolytic contact with the reference electrode so as to generate a signal indicative of the amount of gas being diffused from the sample portion. A heating unit comprising a high frequency generator to establish a high frequency field in the sample is also provided for heating the sample diathermically to a desired temperature. The temperature of the sample is thereupon detected by a temperature sensor attached to the heat conducting surface, which is operative to generate a control signal for the heating unit which is operative to maintain the temperature of the reference electrode at a substantially constant value. The amount of heat furnished by the heating unit to the reference electrode which is equivalent to the flow of blood stream is thereupon measured so that the perfusion factor of the gas is determinable from the aforementioned measured amounts of gas diffused from the sample portion and of heat supplied to the same.

REFERENCES:
patent: 3918434 (1975-11-01), Lubbers et al.
Pfluegers Archiv 273, 199-209/1961, Kanzow.
Clark, Trans. Amer. Soc. Art. Int. Org. 2, 41 (1956).
Luebbers, Pfluegers Arch. 271 431/1960.
Doctoral Thesis of Renate Huch, delivered in 1971 in Marburg, Germany, p. 7.

Affiliated with

Also associated with

Rating

Process and arrangement for determining the perfusion factor of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and arrangement for determining the perfusion factor of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and arrangement for determining the perfusion factor of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2113491