Binaural stethoscope allowing surrounding noises to be heard

Details Binaural stethoscope allowing surrounding noises to be heard Binaural stethoscope allowing surrounding noises to be heard

1995-11-02

1997-04-01

Dang, Khanh

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181137, A61B 702

Patent

active

056168900

ABSTRACT:
A stethoscope comprising two earpieces (1,2) which are connected to an endpiece (3) for capturing sounds via a route for transmission (4 to 7) of the captured sounds, the endpiece being held in one hand by a practitioner during auscultation of a patient. According to the invention, the transmission route (4 to 7) comprises a closable orifice (9) which, in the open position, is capable of bringing the transmission route into sound communication with the surroundings, and whose closing and opening are controlled by the hand holding the endpiece.

REFERENCES:
patent: 2271467 (1942-01-01), Smithline
patent: 3314499 (1967-04-01), Blackman
patent: 3515239 (1970-06-01), Machlup et al.
patent: 4239089 (1980-12-01), Nelson

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