3557796 is referenced by 67 patents and cites 3 patents.

The cardiac pacer disclosed herein employs a digital counter driven by a relatively high frequency oscillator to time intervals which simulate various cardiac functions. When allowed to cycle repetitively, the counter provides a relatively slow, fixed rate mode of operation. However, the counter may be reset under certain conditions by ventricular signals to provide a demand mode of operation and by atrial signals under certain other conditions to provide a so-called synchronized mode of operation. Noise rejection circuitry is also disclosed.

Title
Digital counter driven pacer
Application Number
04/805,714
Publication Number
3557796
Application Date
March 10, 1969
Publication Date
January 26, 1971
Inventor
Davies Gomer L
Terry Jr Reese S
Keller Jr John W
Assignee
Cordis Corporation
IPC
A61m 01/36
A61N 01/365
A61N 01/368
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