Pace pulse signal conditioning circuit

Surgery – Truss – Pad

Patent

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Details

128419PT, A61B 504

Patent

active

045748136

ABSTRACT:
An EKG signal processing apparatus comprising an input to which the EKG signal may be applied, an output at which the processed EKG signal is to appear, a resistor and a normally conductive signal switch connected in series between one terminal of said input and one terminal of said output, a capacitor connected across the output, a differentiator, and a bipolar comparator for providing a signal indicating the presence of a pace pulse at said input, and a signal switch control responsive to said signal for making said signal switch nonconductive for at least a portion of a pace pulse and until any voltage following the pace pulse has reached a low value.

REFERENCES:
patent: 3897774 (1975-08-01), Burdick et al.
patent: 3986496 (1976-10-01), Brastad
patent: 4105023 (1978-08-01), Marchese et al.
patent: 4149527 (1979-04-01), Naylor et al.
patent: 4226245 (1980-10-01), Bennett, Jr.
patent: 4243045 (1981-01-01), Maas

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