B medical monitoring circuit

Details B medical monitoring circuit B medical monitoring circuit

1985-11-06

1986-12-09

Kamm, William E.

Surgery

Truss

Pad

128901, A61B 504

Patent

active

046274413

ABSTRACT:
A monitoring circuit for use in conjunction with an electrical stimulator and an electrical monitor, such as an EKG monitor, having a differential amplifier input. The circuit functions by equalizing the electrical signals due to the stimulator on both inputs of the electrophysiological monitoring device. Because the stimulator induced signals appear at equal levels on both inputs, the differential amplifier of the monitoring device will cancel them out, allowing display of the underlying physiological signals.

REFERENCES:
patent: 4161945 (1979-07-01), Grossman
patent: 4194511 (1980-03-01), Feldman
patent: 4211237 (1980-07-01), Nagel
patent: 4324253 (1982-04-01), Greene et al.
patent: 4331157 (1982-05-01), Keller, Jr. et al.

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