Peripheral blood-flow condition monitor

Details Peripheral blood-flow condition monitor Peripheral blood-flow condition monitor

1996-08-12

1997-09-30

Nasser, Jr., Robert L.

Surgery

Truss

Pad

128687, 128691, 128680, A61B 500

Patent

active

056717504

ABSTRACT:
An apparatus for monitoring a peripheral blood-flow condition of a living subject by detecting a peripheral blood-flow resistance of the subject, including a first and a second pulse-wave sensor which are adapted to be worn on a first and a second portion of the subject, respectively, to detect a first and a second pulse wave, respectively, each of which is produced in synchronism with a heartbeat of the subject, a phase-difference determining device for determining a difference of respective phases of the first and second pulse waves detected by the first and second pulse-wave sensors, and a peripheral blood-flow resistance determining device for determining the peripheral blood-flow resistance of the subject, based on the phase difference determined by the phase-difference determining device, according to a predetermined relationship between peripheral blood-flow resistance and phase difference.

REFERENCES:
patent: 5101828 (1992-04-01), Welkowitz et al.
patent: 5103831 (1992-04-01), Niwa
patent: 5279303 (1994-01-01), Kawamura et al.
patent: 5289823 (1994-03-01), Eckerle
patent: 5293874 (1994-03-01), Takahashi et al.

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