Cardiac amplifier system with low transient fast switching

Details Cardiac amplifier system with low transient fast switching Cardiac amplifier system with low transient fast switching

1980-08-21

1982-05-25

Kamm, William E.

Surgery

Truss

Pad

128902, A61B 504

Patent

active

043311580

ABSTRACT:
A cardiac amplifier system with several patient electrodes includes an amplifier with a capacitor coupled input and a switch for coupling different ones of the patient electrodes to the amplifier. A circuit including a time delay, a pair of sequentially operated controlled conduction devices and a resistive network shunts the amplifier input and charges the coupling capacitors in a controlled fashion when the selector switch is operated to prevent switching transients from being applied to the amplifier.

REFERENCES:
patent: 2865366 (1958-12-01), Partridge
patent: 3533003 (1970-10-01), Plaszczywski et al.

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