Motion artifact detection for continuous blood pressure monitor

Details Motion artifact detection for continuous blood pressure monitor Motion artifact detection for continuous blood pressure monitor

1988-02-25

1991-04-09

Cohen, Lee S.

Surgery

Truss

Pad

128672, A61B 502

Patent

active

050055810

ABSTRACT:
A method and apparatus is provided for detecting motion artifacts in data obtained from a blood pressure monitoring transducer and for preventing erroneous data related to such artifacts from interfering with the accuracy of the blood pressure measurement. Operation includes the steps of monitoring the amplitude of a pulse waveform from a first pulse to a next successive pulse and determining if the output signal changes by more than a predetermined percentage, thus indicating a motion condition.

REFERENCES:
patent: 4349034 (1982-09-01), Ramsey, III
patent: 4423738 (1984-01-01), Newgard
patent: 4543962 (1985-10-01), Medero et al.

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