DDI Programmable cardiac tissue stimulator

Details DDI Programmable cardiac tissue stimulator DDI Programmable cardiac tissue stimulator

1984-01-27

1986-02-25

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

045721939

ABSTRACT:
A cardiac stimulation apparatus capable of stimulation in the DDI modality having a first sensing system (46) for sensing electrical activity in the atrium, a second sensing system (48) for sensing electrical activity in the ventricle, a pulse generator logic (24) connected to the first (46) and second (48) sensing systems responsive to electrical activity sensed by the first (46) and second (48) sensing systems for determining the timing for supplying electrical pulses to the atrium and ventricle for their depolarization, a first circuit within the pulse generator logic (24) for preventing synchronization of timing within the pulse generator (24) for producing apparatus generated pulses to the ventricle when electrical activity is sensed in the atrium, a second circuit within the pulse generator logic (24) for inhibiting an apparatus generated pulse to the atrium when electrical activity is sensed resulting from natural depolarization of the atrium, and pulse generator logic timing means (32, 34, 44) for interacting with the pulse generator logic (24) for carrying out timing functions for pulse generation.

REFERENCES:
patent: 3747604 (1973-07-01), Berkovits
patent: 4388927 (1983-06-01), Schober

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