Method for controlling the base frequency of a pacemaker.

摘要

A sensor is used with an algorithm to give a measure of patient activity or response. When there is a state of response signalled by the sensor as well as slower cardiac activity then the base frequency is diminished to a preset minimum in graduated steps. When renewed activity takes place indicated either by sensor signals or by cardiac activity then the base frequency is raised from the minimum base frequency to the programmed base frequency in graduated steps. The sensor may be connected to patient breathing or to an accelerometer indicating trunk activity.