Endocardial electrode

Details Endocardial electrode Endocardial electrode

1982-09-30

1985-03-26

Cohen, Lee S.

Surgery

Truss

Pad

128786, A61N 102

Patent

active

045066795

ABSTRACT:
An improved endocardial electrode (10) of the type having an electrical conductor (14) encased in material (16) which is generally inert to body fluids and terminating at an exposed, electrically conductive tip (12). A plurality of non-conductive, resilient tines (20) extends from the encasing material (16) near the electrode tip (12). Each tine (20) forms a substantially ninety degree angle with respect to the electrical conductor (14). A blocking surface (22) is provided adjacent to a portion of each tine (20) surface facing the electrode tip (12). The blocking surface (22) allows only an upper portion of each tine to be deformed in the direction of the electrode tip (12) while allowing the entire tine to be deformed away from the electrode tip, thereby providing a decreased deformation resistance as the electrode tip (12) is inserted into a vein (34) or between heart trabeculae, and an increased deformation resistance as the electrode tip (12) is withdrawn through a vein (34) or from heart trabeculae.

REFERENCES:
patent: 4236529 (1980-12-01), Little
patent: 4269198 (1981-05-01), Stokes
patent: 4301815 (1981-11-01), Doring

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