Detection and monitoring device

Details Detection and monitoring device Detection and monitoring device

1980-01-25

1981-12-22

Michell, Robert W.

Surgery

Truss

Pad

128689, 128721, A61B 508

Patent

active

043065678

ABSTRACT:
One or more physiological rhythmic functions can be monitored by detecting pressure waves within a predetermined, relatively narrow, frequency band associated with each of said functions, generating a corresponding signal representative of said pressure waves associated with each of said functions and demodulating the signal to detect any amplitude modulation frequency related to the rhythmic rate of each of said functions.

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Grassi, C. et al., "Normal & Pathological Respiratory Sounds Analyzed by Means of A New Phonopneumographic Appar.", Respiration 33:315-324, (1976).

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