V Lead extender for ECG

Details V Lead extender for ECG V Lead extender for ECG

1979-08-06

1981-01-06

Kamm, William E.

Surgery

Truss

Pad

A61B 504

Patent

active

042430461

ABSTRACT:
An auxiliary rotary selector switch is provided, preferably conveniently near a standard single-channel ECG instrument. The V lead of the instrument is connected to one end of the center conductor of a coaxial cable, the opposite end of which is connected to the center contact of the auxiliary switch. Each of several stationary switch contacts is connected to a conductor of an auxiliary patient cable, the opposite ends of the conductor being attached to a corresponding number of V electrodes spaced across the chest of the patient. By oscillating the center contact, separate V readings, one for each of the chest electrodes may be recorded. The extender is actually connected to the ECG instrument when the selector switch of that instrument is turned to the V lead position, and the signals from the plural V electrodes are recorded serially on the chart as the auxiliary selector switch is turned.

REFERENCES:
patent: 2400583 (1946-05-01), White
patent: 2647508 (1953-08-01), Pelavin
patent: 3058458 (1962-10-01), Daneman
patent: 3631851 (1972-01-01), Hesen
patent: 3757778 (1973-09-01), Graham
patent: 3868948 (1975-03-01), Graetz
patent: 3991747 (1976-11-01), Stanly et al.

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