Dry electrode brain wave recording system

Details Dry electrode brain wave recording system Dry electrode brain wave recording system

1989-08-25

1990-10-30

Hindenburg, Max

Surgery

Truss

Pad

128731, A61B 504

Patent

active

049670387

ABSTRACT:
In a medical electroencephalographic EEG system, a hat is placed on the head of the patient. The hat contains a plurality of electrodes conforming to the hat. A circuit board having a low-noise integrated circuit amplifiers may be mounted thereon. In one embodiment each of the electrodes has a number of flexible and elastic fingers, for example 2-16 gum rubber fingers, having a conductive tip at the end of each finger, or flexible fingers made entirely of conductive material. In another embodiment the multi-contact electrode uses fingers which are rigid and connected to a spring-loaded plate. The tips contact the patient's scalp, without conductive gel or liquid, to provide a redundancy of contacts.

REFERENCES:
patent: 3411495 (1968-11-01), Casby
patent: 3490439 (1970-01-01), Rolston
patent: 3508541 (1970-04-01), Westbrook et al.
patent: 4537198 (1985-08-01), Corbett
patent: 4683892 (1987-08-01), Johansson et al.
patent: 4709702 (1987-12-01), Sherwin
patent: 4736751 (1988-04-01), Gevins et al.

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