Biphasic otoscopic air stimulator for performing clinical calori

Details Biphasic otoscopic air stimulator for performing clinical calori Biphasic otoscopic air stimulator for performing clinical calori

1977-01-13

1978-08-15

Cohen, Lee S.

Surgery

Truss

Perineal

128 2N, 128 21M, 128 9, 128401, A61B 1900

Patent

active

041064933

ABSTRACT:
A caloric testing apparatus for introducing heated or cooled air, under direct visual control, into the outer ear canal of a human subject for purposes of testing inner ear balance mechanisms. The device includes a speculum for observing the ear canal during the flow of air, thereby assuring proper direction of the impinging air jet. The apparatus includes temperature-controlled liquid baths for providing hot or cold air, and has arrangements for providing suitably timed irrigation periods, adjustable so as to control the magnitudes of the caloric stimulations. Measurements can be made by the electrical recording of eye movements for accurate measurement of nystagmic response intensity.

REFERENCES:
patent: 1693021 (1928-11-01), Cameron
patent: 3384076 (1968-05-01), Speelman
patent: 3698387 (1972-10-01), Moore et al.
patent: 3934578 (1976-01-01), Heine
patent: 3942515 (1976-03-01), Servos et al.
patent: 3995620 (1976-12-01), Epley
Aantaa, "Caloric Test with Air", Acta Otol., Supp 224, vol. 24, 1967, pp. 82-85.
Gates et al., "The Thermoelectric Air Stimulator" Arch. Otol., vol. 92, Jul. 1970, pp. 80-84.
Proctor et al., "Construction . . . Air Stimulator for Caloric Vest. Testing", Laryngoscope, vol. 86, No. 1, pp. 126-131, Jan. 1976.
Proctor et al., "A Method for Adjusting . . . Air Coloric Test", Trans. Am. Accd. of Opht. & Otol., Mar.-Apr. 1976, pp. 210-222.
Proctor et al., "Irrigation Handle With Temp. Sensor . . . ", Laryngoscope, vol. 83, 1973, pp. 1717-1721.
Albemaz et al., "The Use of Air . . . Stimulation", Laryngoscope, vol. 82, 1972, pp. 2198-2203.

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