Electrode assembly for sensing heart activity

Details Electrode assembly for sensing heart activity Electrode assembly for sensing heart activity

1987-08-14

1989-06-06

Cohen, Lee S.

Surgery

Truss

Pad

A61B 504

Patent

active

048362085

ABSTRACT:
An electrode assembly for sensing heart activity and especially heart activity from a fetal epidermis during the birth of a child. A fetal electrode introducer includes a rigid guide tube with an intermediate universal joint which allows the guide tube to be bent at the best angle to accommodate each patient. The intermediate joint allows a smooth transmission of the rotary motion manually applied at a distal handle to drive the electrode into the fetal epidermis.
A sliding sleeve covers the fetal electrode to provide a bearing for rotation, protects the electrode from contamination, and also serves as a resistance means to indicate to the user that the assembly has abutted against the fetal epidermis. Such resisting means includes either a detent or lockable system, or a breakable membrane.

REFERENCES:
patent: 3750650 (1973-08-01), Ruttgers
patent: 4311153 (1982-01-01), Smits
patent: 4321931 (1982-03-01), Hon
patent: 4437467 (1984-03-01), Helfer et al.
patent: 4501276 (1985-02-01), Lombardi
patent: 4577635 (1986-03-01), Meredith

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