Systems and methods for processing physiological signals

Details Systems and methods for processing physiological signals Systems and methods for processing physiological signals

1981-12-21

1985-08-27

Kamm, William E.

Surgery

Truss

Pad

A61B 500

Patent

active

045371962

ABSTRACT:
For suppressing cardiovascular artifact present in a respiration signal, a cardiovascular artifact filter suppresses artifacts in response to an output signal generated by a cardiotachometer. The output signal is proportional to the fundamental frequency of the cardiovascular artifact. Recurrence of respiration is determined by coupling the filter to a threshold detector. A minimum threshold level proportional to the maximum amplitude of the artifact is supplied to the detector for minimizing the false indication of respiration recurrence due to presence of an artifact in the respiration signal.

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patent: 4064537 (1977-12-01), Ota et al.
patent: 4161945 (1979-07-01), Grossman
patent: 4243045 (1981-01-01), Maas
patent: 4379460 (1983-04-01), Judell
Plumb et al., "IEEE Transactions on Biomedical Engineering, vol. 11, #4, Oct. 1964, pp. 157-159.

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