Acoustic conduit for use with a stethoscope

Details Acoustic conduit for use with a stethoscope Acoustic conduit for use with a stethoscope

1998-06-29

1999-09-14

Dang, Khanh

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181137, A61B 702

Patent

active

059526181

ABSTRACT:
An acoustic conduit includes an outer tube and two independent inner tubes. The outer tube is formed of a first material having a first density. The inner tubes are formed of springs of a second material having a second density and each creates an acoustic chamber. The first and second materials are chosen so that the second density is greater than the first density. The acoustic conduit may be used as, for example, a stethoscope tube.

REFERENCES:
patent: 3772478 (1973-11-01), McCabe et al.
patent: 4071694 (1978-01-01), Pfeiffer
patent: 4200169 (1980-04-01), MacDonald, III et al.
patent: 4270627 (1981-06-01), Hill

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