Electrode switching adapter for vertical recording of electronys

Details Electrode switching adapter for vertical recording of electronys Electrode switching adapter for vertical recording of electronys

1974-12-05

1976-03-30

Michell, Robert W.

Surgery

Truss

Perineal

346 33ME, 346 62, A61B 505

Patent

active

039467236

ABSTRACT:
A switching adapter that provides a rapid and convenient apparatus for selective recording of vertical eye movements with a single channel recorder in electronystagmograph apparatus. A number of single channel recorders are used in the field to observe the horizontal eye movements elicited by thermally induced vestibular unbalance. In certain types of pathological unbalances, vertical eye movement is also present, therefore, it is highly desirable to be able to also record the vertical eye movement. The switching adapter conveniently converts single channel recorders that are normally used for recording horizontal eye movement for recording vertical nystagmus.

REFERENCES:
patent: 3000271 (1961-09-01), Harvey et al.
patent: 3195533 (1965-07-01), Fischer
patent: 3217706 (1965-11-01), Sullivan
patent: 3699948 (1972-10-01), Ota
patent: 3721230 (1973-03-01), Ziernicki
patent: 3875930 (1975-04-01), Silva et al.
Grieco, "New Apparatus . . . Physiology," Med. & Biol. Eng., Vol. 9, No. 6, pp. 705-710, 1971.

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