Multi-channel vascular flow monitoring system

Details Multi-channel vascular flow monitoring system Multi-channel vascular flow monitoring system

1977-07-11

1980-01-08

Cohen, Lee S.

Surgery

Truss

Pad

128734, A61B 502, A61B 505

Patent

active

041823141

ABSTRACT:
A multi-channel vascular flow monitoring system for measuring skin resistance during peripheral blood flow. Conventional EKG type electrodes supply current flow through a selected segment of skin and monitor voltage across a plurality of selected areas within the current supplied segment. Separate detectors are utilized for amplifying and filtering voltage signals received from the voltage electrodes. The detectors provide a first output voltage representing percentage of resistance changes across the voltage electrodes and a second output signal representing the resistance of each monitored skin segment. The output signals of all of the detectors are normalized by a common reference voltage and either directly displayed or further conditioned for use with various display medium.

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patent: 3882851 (1975-05-01), Sigworth
patent: 3971365 (1976-07-01), Smith
patent: 3994284 (1976-11-01), Voelker

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