Subcutaneous electrode structure

Details Subcutaneous electrode structure Subcutaneous electrode structure

1979-01-16

1980-08-26

Cohen, Lee S.

Surgery

Truss

Pad

A61B 504

Patent

active

042190274

ABSTRACT:
A subcutaneous electrode structure particularly suitable for a chronic implant and for taking a low noise electrocardiogram of an active animal such as a rat, dog, monkey, cow or the like, comprises a thin inflexible, smooth disc of stainless steel having a diameter as of 5 to 30 mm, which is sutured in place to the tissue of the animal being monitored. The disc electrode includes a radially directed slot extending in from the periphery of the disc for approximately 1/3 of the diameter. Electrical connection is made to the disc by means of a flexible lead wire that extends longitudinally of the slot and is woven through apertures in the disc and held thereto at the terminal end by means of a spot-welded tab. Within the slot, an electrically insulative sleeve, such as silicone rubber, is placed over the wire. The wire with the sleeve mounted thereon is captured in the plane of the disc and within the slot by means of crimping tabs extending laterally of the slot and over the insulative wire. The marginal lip of the slot area of the disc is apertured and an electrically insulative potting material, such as silicone rubber, is potted in place overlaying the wire slot region and through the apertures in the electrode.

REFERENCES:
patent: 2985172 (1961-05-01), Jones
patent: 3170459 (1965-02-01), Phipps et al.
patent: 3496929 (1970-02-01), Domingues
patent: 3543761 (1970-12-01), Bradley
patent: 3565059 (1971-02-01), Hauser et al.
patent: 4011861 (1977-03-01), Enger

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