Perfusion meter

Details Perfusion meter Perfusion meter

1976-06-17

1978-08-29

Michell, Robert W.

Surgery

Truss

Perineal

128 205P, 356 41, A61B 502

Patent

active

041096436

ABSTRACT:
A perfusion meter comprising a hand-held battery operated optical plethysmograph displays an indication of blood flow rate in response to the time-varying optical transmission characteristics of an ear or other organ. This indication, called the perfusion index, is proportional to both the amplitude and frequency of variations in the dynamic optical transmission characteristics of the ear or other organ.

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patent: 4001667 (1977-01-01), Bober
patent: 4003370 (1977-01-01), Emil et al.

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