Stethoscope

Details Stethoscope Stethoscope

1997-10-01

1999-01-19

Dang, Khanh

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181137, A61B 702

Patent

active

058615849

ABSTRACT:
A stethoscope includes a chestpiece with at least one sound gathering device, a binaural assembly with two earpieces, and a sound transmission unit between the chestpiece and the binaural assembly for transmitting auscultatory sounds from the chestpiece to the earpieces. The chestpiece confines an acoustic path therein. The sound gathering device is mounted on the chestpiece in acoustic communication with the acoustic path. The sound transmission unit includes a rigid first hollow connector which has a first end mounted on the chestpiece in acoustic communication with the acoustic path and a second end formed as a tubular wall, and a flexible second hollow connector. The second hollow connector has a sleeve portion and a pair of transmission tubes connected integrally at one end to the sleeve portion and mated with the earpieces at an opposite end. The sleeve portion is sleeved over the tubular wall and engages sealingly the latter.

REFERENCES:
patent: 832032 (1906-10-01), Borden
patent: 4928786 (1990-05-01), Allen
patent: 5514840 (1996-05-01), Selinger

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