Iontophoretic electrode structure

Surgery – Means for introducing or removing material from body for... – Infrared – visible light – ultraviolet – x-ray or electrical...

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128803, A61N 130

Patent

active

044190921

ABSTRACT:
An iontophoretic bioelectrode includes an enclosure having a bottom wall formed of a membrane through which ions may migrate when subjected to an electric field, and an upper wall joined to the bottom wall to define an interior compartment for holding an ion-containing solution. An electrode in the form of the male portion of a conventional clothing snap is mounted to the enclosure to communicate electrically with solution contained in the interior compartment. A needle receiving element is mounted in the upper wall of the enclosure. This element is in the form of a section of conduit having a receiving end, which is directed upwardly, and a blocking end which includes a platform for preventing a needle inserted into the receiving end from passing all the way through the conduit. A resilient plug is disposed in the receiving end of the conduit to prevent solution from escaping from the interior compartment. The plug is formed of a material through which a needle may be inserted but which, when the needle is retracted, closes about the opening made by the needle to prevent the escape of solution.

REFERENCES:
patent: 3187745 (1965-06-01), Baum et al.
patent: 3730186 (1973-05-01), Edmunds, Jr. et al.
patent: 3750094 (1973-07-01), Zenkich
patent: 3805769 (1974-04-01), Sessions
patent: 4063555 (1977-12-01), Ulinder
patent: 4137909 (1979-02-01), Hix
patent: 4166457 (1979-09-01), Jacobsen et al.
patent: 4250878 (1981-02-01), Jacobsen et al.
patent: 4304453 (1981-12-01), Grunweld

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