Inventors:
James C. Hansen - Denver CO
Tibor A. Nappholz - Englewood CO
Robert H. Whigham - Aurora CO
Assignee:
Telectronics N.V. - Curacao
International Classification:
A61B 504
Abstract:
An implantable pacemaker which stores in memory the representation of an ECG signal by compressing the data. Whenever the input signal changes by a threshold amount from the last time data was recorded, a representation of the time interval which has elapsed is recorded. In a maximimally efficient system, the only information which must be stored are the successive elapsed times, along with indications of when the input signal changes slope.