Enhanced audiotransmission stethoscope

Details Enhanced audiotransmission stethoscope Enhanced audiotransmission stethoscope

1983-05-09

1986-02-11

Hix, L. T.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

A61B 702

Patent

active

045694133

ABSTRACT:
A stethoscope is provided which includes a stethoscope head and a pair of ear tips which are connected by tube means which provide individually separate air passages from the stethoscope head to the ear tips. The length of each of the air passages is selected such that the resonant peaks of sound transmitted from the stethoscope head to one ear lie in the resonant valleys of sound transmitted from the stethoscope head to the other ear. This is achieved by utilizing separate air passages which have a length ratio in the range of about 0.63 to about 0.73. The stethoscope is preferably utilized in conjunction with a dual stethoscope head having a bell receiver for transmitting low frequency sounds and a diaphragm receiver for transmitting high frequency sounds.

REFERENCES:
patent: 3570625 (1971-03-01), Allen

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