Air caloric delivery tubes

Details Air caloric delivery tubes Air caloric delivery tubes

1975-11-05

1976-12-07

Michell, Robert W.

Surgery

Truss

Perineal

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

Patent

active

039956202

ABSTRACT:
Delivery tubes used with air caloric stimulation systems, when measuring vestibular responses. The delivery tubes fit into the patient's ears at the nozzle end thereof. Silastic tubing is provided narrower at the nozzle end for forming a higher velocity narrower stream of air directed at the tympanic membrane to produce more effective and consistent heat exchange with the labyrinth. A shield is provided to prevent the tubing from impinging on the tympanic membrane and to retain the apparatus in place. A handle is also provided to aid in the insertion of the delivery tube into the air canal, and to aid in attaching the delivery nozzle of the delivery head regularly used with the air caloric stimulation system.

REFERENCES:
patent: 989839 (1911-04-01), Fowler
patent: 1591410 (1926-07-01), Spang
patent: 3000271 (1961-09-01), Harvey et al.
patent: 3563231 (1971-02-01), Ducote
patent: 3636940 (1972-01-01), Gravlee
patent: 3794017 (1974-02-01), Servos
patent: 3882848 (1975-05-01), Klar et al.

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