Stethoscope with floating diaphragm

Details Stethoscope with floating diaphragm Stethoscope with floating diaphragm

1983-03-24

1984-10-09

Fuller, Benjamin R.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

A61B 702, H04R 2500

Patent

active

044756194

ABSTRACT:
A stethoscope including a diaphragm head with a loosely affixed diaphragm exhibiting an increased frequency response range. The diaphragm is peripherally supported adjacent the rim of the diaphragm head. The diaphragm is contacted with the head by the pressure applied by the underlying skin or clothing of the patient to eliminate sound leakage therebetween.

REFERENCES:
patent: 2356262 (1944-08-01), Mott
patent: 3108652 (1963-10-01), Littmann
patent: 3109508 (1963-11-01), Cefaly
patent: 3152659 (1964-10-01), Littmann
patent: 3157246 (1964-11-01), Howell
patent: 3179204 (1965-04-01), Cefaly
patent: 3215224 (1965-11-01), Machlup
patent: 3224526 (1965-12-01), Weber
patent: 3276536 (1966-10-01), Littmann
patent: 3303903 (1967-02-01), Speelman
patent: 3307650 (1967-03-01), Howell
patent: 3515239 (1970-06-01), Machlup et al.
patent: 3587776 (1971-06-01), Haiken
patent: 4440258 (1984-04-01), Packard
Dawson, J. B., B.M., M.R.C.P.Ed., "Auscultation and the Stethoscope", _The Practioner, vol. 193, pp. 315-322, Sep. 1964.

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