Apparatus for measuring blood flow

Details Apparatus for measuring blood flow Apparatus for measuring blood flow

1991-11-21

1994-03-08

Green, Randall L.

Surgery

Truss

Pad

128634, A61B 500

Patent

active

052918866

ABSTRACT:
An apparatus for measuring blood flow repeatedly segmentally scans a region of in vivo tissue with a coherent light beam. Each scanning segment comprises a scanning period during which the light beam is scanned and a rest period during which the light beam is not scanned. During the rest period, the light beam is directed at a measuring point of the in vivo tissue. Measurement data is obtained dependent on the intensity of scattered light from the measurement point. The measurement data is time series data of chronological changes in the intensity of scattered light caused by blood in the in vivo tissue. The blood flow rate is calculated from frequency-analysis of the time series data.

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