Device for determining the pacing modality of an artificial card

Details Device for determining the pacing modality of an artificial card Device for determining the pacing modality of an artificial card

1983-06-15

1985-03-12

Kamm, William E.

Surgery

Truss

Pad

A61N 100

Patent

active

045038589

ABSTRACT:
A pacing system analyzer as connected to an implantable cardiac pacer and if an atrial pacing pulse is detected only, the analyzer sends a simulated P-wave to the pacer and determines the response of the simulated P-wave to determine if the pacing mode is AAI, AAT, or AOO. In the event a ventricular output pulse only is detected by the analyzer, a simulated R-wave is sent to the pacer and if the pacer responds either by a triggered ventricular pulse or by not changing its response, the analyzer determines that the pacer is in a VVT or VOO mode. On the other hand, if the pacer is inhibited a subsequent simulated P-wave is sent to it and the response of this P-wave determines whether or not the pacer is in a VVI or VDD mode. In the event that both atrial and ventricular pacing pulses are detected by the analyzer, the simulated R-wave is first sent to the pacer and an unchanged response determines that the pacer is in a DOO mode. On the other hand, if the pacer is inhibited so that ventricular pulses are not produced, then a simulated P-wave is sent to it. The response of the pacer to the simulated P-wave determines whether it is in a DVI or DDD mode.

REFERENCES:
patent: 3651799 (1972-03-01), Daynard
patent: 3780727 (1973-12-01), King
patent: 3782367 (1974-01-01), Hochberg et al.
patent: 4236524 (1980-12-01), Powell et al.
patent: 4290430 (1981-09-01), Bihn et al.

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