Stereophonic stethoscope

Details Stereophonic stethoscope Stereophonic stethoscope

1996-02-13

1997-07-22

Dang, Khanh

Acoustics

Anatomic or prosthetic relation

Ear and mouth

A61B 702

Patent

active

056505981

ABSTRACT:
A stethoscope provided with two conducting tubes and sound sensors, and two 3-way stopcocks; enabling the sound from one sensor to be conducted to one ear, while that from the second sensor is conducted to the other ear. One of the conducting tubes may be detached when the stethoscope is used for monophonic auscultation.

REFERENCES:
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patent: 1853951 (1932-04-01), Zala
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patent: 3124211 (1964-03-01), Cefaly
patent: 4706777 (1987-11-01), Baumberg
patent: 4997055 (1991-03-01), Grady
Kerr, W.J., Althausen, T.L., Bassett, A.M., Goldman, M.J. The symballophone: a modified stethoscope for the lateralization and comparison of sound. Am. Ht. J. 14: 594, 1937.
Wetherill, H.E. An improved form of stethoscope Am. J. Med. Sci. 126, 884, 1902.
Ackerman, N.B., Bell, R.E. and deLemos, R.A. Differential pulmonary auscultation in neonates. Clin. Pediat. 21, 566, 1982.
Walker, J.A. and Mathur, A.K. A bilateral Stethoscope. Anaesthesia, 38, 164, 1983.
Hopkins, R.L. Differential auscultation of the acutely ill patient. Annals of Emergency Medicine, 14, 589, 1985.
Shanmugan, S. Teaching Stethoscope revisited, J.A.P.I., 34, 892, 1986.
Lee, E. of Stethoscopes and Stopcocks. Anesth. Analg. 73, 98, 1991.

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