A versatile simultaneous multifinger photocell plethysmography system for use in clinical and occupational medicine.
Wasserman-D; Carlson-W; Samueloff-S; Asburry-W; Doyle-T
Med Instrum 1979 Aug; 13(4):232-234
A photoplethysmography system used for the simultaneous multifinger qualitative measurement of the vascular bed of the digits is described. The system consists of fiberoptic bundles with cadmium- sulfide photodetectors, a solid state preamplifier, and incandescent lamp. Strip chart recordings of multiple simultaneous photoplethysmographic measures are included. The authors conclude that the photoplethysmography system is a versatile, durable, and reliable instrument for comprehensive field evaluations of peripheral circulation in the fingers.
NIOSH-Author; Qualitative-analysis; Analytical-methods; Analytical-instruments; Occupational-medicine; Exposure-chambers; Cardiovascular-system; Bionics; Medical-equipment