Interference resistant biomedical transducer

Details Interference resistant biomedical transducer Interference resistant biomedical transducer

1986-11-13

1988-11-15

Kamm, William E.

Surgery

Truss

Pad

381 67, 381190, 310310, 310358, 128773, A61B 502

Patent

active

047841540

ABSTRACT:
An interference resistant biomedical transducer for monitoring the acoustic output of a patient's cardiac or respiratory system which provides a high degree of rejection of acoustic noise and spurious electromagnetic signals. The transducer comprises a piezoelectric diaphragm assembly having electrodes which produce a differential output signal. The transducer housing includes a massive metal disc and a compliant handle which provide a mechanical filter to remove undesired signals such as those related to motion of the patient and ambient acoustic noise.

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