Automatic means for tympanometric testing

Details Automatic means for tympanometric testing Automatic means for tympanometric testing

1975-12-02

1977-01-11

Howell, Kyle L.

Surgery

Truss

Perineal

73553, 179 1N, A61B 512

Patent

active

040021610

ABSTRACT:
An instrument is described which automatically performs a tympanometric hearing test and which gives the test results in graphic form. The test instrument includes a probe which is placed in the subject's ear and which applies controlled air pressure and audio test signals to a sealed ear canal in a manner programmed by the instrument so that a plot of the ear compliance versus the ear pressure is produced on the chart. The plot is made using a coordinated chart drive and ear probe air pressure control and an audio signal generator and a compliance signal level recorder. The system automatically runs through the necessary coordinated chart advance, air pressure control, and compliance signal recordings on the chart to complete one tympanometric test after the start button is operated.

REFERENCES:
patent: 2415310 (1947-02-01), Summerville et al.
patent: 3395697 (1968-08-01), Mendelson
patent: 3757769 (1973-09-01), Arguimbau et al.
patent: 3882848 (1975-05-01), Klar
patent: 3949735 (1976-04-01), Klar et al.

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