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US 4,067,321 AGranted
Electrodes for electroencephalographic examinations
AssigneeGovernor of Tokyo Metropolis
InventorsJun Oda, Einosuke Koga, Shiro Endo, Ichiro Aizawa, Kyoko Nishihara
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Abstract
An electrode for electroencephalographic examinations which comprises a dish type metal electrode plate having mounted thereto at the peripheral edge an annular insulating plate with plural leg pieces extending radially outward therefrom. This electrode, when appropriately positioned on the human head, will stay steadily attached for a long period of time and will not be detached easily by the movement of the head.
Claims6
An electrode for attachment to the head of a subject for electroencephalographic examinations which comprises:
- a dish-type metal electrode plate having an upper surface and a lower peripheral edge;
- a lead wire with one terminal connected to the electrode plate on the upper surface thereof and with its other terminal adapted to be connected to an electroencephalograph;
- coating means for insulatingly covering the upper surface of said electrode plate and said one terminal;
- an annular insulating plate mounted on the electrode plate at the lower peripheral edge thereof;
- three elongated leg pieces fitted to the annular insulating plate and extending outwardly equiangularly in the radial direction from the center of the electrode and downwardly from said insulating plate for intimate contact with the head skin of the subject;
- and
- means for adhesively attaching said insulating plate and said elongated leg pieces to the head skin of the subject to produce stable adhesion of said electrode to the subject's head.
4 more elements
Dependencies are inferred from the claim text.