Electrode, fixed and stabilised by vacuum

Details Electrode, fixed and stabilised by vacuum Electrode, fixed and stabilised by vacuum

A - Human Necessities

61

B

326/17.1

A61B 5/04 (2006.01) A61B 5/0408 (2006.01)

Patent

CA 1258694

ABSTRACT OF THE DISCLOSURE, The invention relates to an electrode intended, for example, for electro- cardiogram examinations, and capable of being held in position by suction. Vacuum conditions are created through a hose or tube, through which a measuring conductor is drawn. The electrode comprises an inflexible backpiece, an intermediate component made of an elastomeric material, and an electrode plate, preferably made of a. silver-coated plastics. The intermediate component includes a relatively inflexible sealing ring which, in the operative state of the electrode, supports against the skin of a patient via a sealing lip and against the opposing side of the back- piece. The electrode plate is firmly connected to the backpiece, while the sealing ring carried by the intermediate component is movable and can be readily sprung away from the backpiece via a. resilient member, When no load is exerted on the lip-side of the ring and the ring is thus urged outwardly, a vacuum valve is closed automatically through the inter- mediate component, and is re-opened when the electrode is pressed against the surface of the skin, whereupon the electrode is held firmly by suction.

466104

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