04228803 is referenced by 77 patents and cites 8 patents.

A cardiac pacemaker is disclosed having means for automatically adjusting the rate of operation to correspond to physiological changes. Circuitry is provided for detecting the presence or absence of an evoked T wave following a delivered stimulus pulse, and for measuring the time interval between the stimulus pulse and the following T wave. The escape interval of the pacemaker pulse generator is varied in accordance with the detected stimulus-T interval and in the same direction, so as to vary the pacing rate in accordance with variations in such interval. Since this interval in turn corresponds to physiological changes, the pacemaker is adapted to automatically follow the patient's physiological changes.

Title
Physiologically adaptive cardiac pacemaker
Application Number
5/949044
Publication Number
4228803
Application Date
October 6, 1978
Publication Date
October 21, 1980
Inventor
Anthony F Rickards
London
GB
Agent
Woodcock Washburn Kurtz Mackiewicz & Norris
Assignee
Credit du Nord International
AN
IPC
A61N 1/30
View Original Source