Stethoscope having means for measuring pulse frequency
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United States of America Patent
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Mar 22, 1983
Grant Date -
N/A
app pub date -
Dec 24, 1980
filing date -
Dec 24, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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