An electrode for attachment to the skin includes a pad of foamed material soaked with electrode jelly positioned in a low profile cup member and engaging an electrical conductor at the base of the cup member. Because the pad is wetted by the jelly, it adheres to the cup member and conductor. The cup member and soaked pad are protected by a cover, a projecting portion of which engages and holds the pad in the cup member. The area of the projecting portion engaging the pad has a relatively small area in comparison to the area of the pad engaging the cup member base and conductor. The pad therefore has comparatively little adhesion to the projecting portion and the cover can be removed from the electrode without pulling the pad away from the cup member.
A package for flat lead transistors is provided in which a raised flange provides structural rigidity to prevent damage to the flat leads of the transistor.
Method and apparatus for providing an improved electrical connection between an electrode placed on the surface of the body and the underlying tissue. The electrode, including an absorbent pad saturated with a conductive material, is adhesively affixed to the body surface. The elongated fibers of a brush are brought into contact with the absorbent pad and, with an appropriate amount of force applied to the brush, the fibers micro-puncture the body surface, forcing the conductive material into microchannels beneath the body surface fomed or enlarged by the fibers and into contact with the underlying tissue.
A disposable, pre-gel body electrode for short term use has a self-contained electrolyte gel-impregnated pad therein sealed with a cap which minimizes electrolyte dry-out.
A cup for use in medical electrode structures comprises a one-piece body of plastic having a cup shape and thus having a base and a rim. The rim is rounded for comfortable skin contact and has integrally formed barbs projecting inwardly and downwardly toward the center of the cup. The barbs permit a prefilled electrolyte sponge to be dropped into the cup without appreciable resistance from the barbs, but resist any tendency for the prefilled sponge to separate from the cup. Accordingly the cup supports the prefilled electrolyte sponge for contact to the skin of a patient but resists any tendency of the sponge to escape the cup by clinging to the patient's skin.
There is disclosed a novel electrode assembly or package for two or more electrode devices, and also a novel method of fabricating not only the overall assembly, but also the devices in conjunction therewith. The electrode assembly as contemplated by the disclosure includes a carrier member in generally strip form having one or more openings therein, the number of said openings depending upon and being equal to one-half of the number of electrode devices to be employed in said assembly. A medical electrode device is secured in overlying relation to each opening, on opposite sides of the carrier member, with the gel pads of each said electrode device being disposed within the periphery of the opening and in face-to-face contact with the pad of the opposed electrode device. The electrode devices may be pre-gelled, if desired. It is contemplated that the assembly may then be packaged in a suitable container, such as a plastic or foil envelope. The method as disclosed involves the fabrication of the electrode device in an assembled relation with a carrier strip so as to provide a length of strip material having a plurality of said devices secured thereto, and the subsequent folding over of said strip to provide a carrier member with electrode devices on opposite sides thereof.