Stethoscope having means for measuring pulse frequency

Details Stethoscope having means for measuring pulse frequency Stethoscope having means for measuring pulse frequency

1980-12-24

1983-03-22

Stellar, George G.

A61B 502

Patent

active

043777279

ABSTRACT:
An improved stethoscope having means for measuring the frequency of a series of pulses, such as human heart pulses, is disclosed, in the use of which such pulses are detected simultaneously with detection of a series of timed detectable reference impulses produced by a reference impulse producer having means for adjusting the frequency of the reference impulses produced thereby and also having readout means indicating the frequency of the reference impulses, wherefore upon adjustment of the frequency of the reference impulses as necessary to match that of said pulses, the frequency of said pulses is indicated on the readout means.

REFERENCES:
patent: 1686138 (1928-10-01), Marvel

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