Implantable active medical device enslaved to at least one physiological parameter

Abstract

An active implantable medical device, notably a cardiac pacemaker, enslaved to at least a physiological parameter which comprises at least one effort sensor (MV) having a plurality of determinable states, for measuring a primarily physiological parameter and delivering a signal which is a function of effort exerted by a patient bearing the device and at least one activity sensor (G) having a plurality of determinable states, for measuring a primarily physical parameter and delivering a signal which is indicative of the activity of the patient bearing the device. The determinable states of the respective sensors are determined and the relative sequence of successive changes in the state of the respective sensors are identified and analyzed periodically according to predetermined criteria. A command escape interval (IECONSIG) controlling the enslaved functioning of the device is determined from the analyzed states of the sensors. The command escape interval (IECONSIG) is then limited to predetermined values as appropriate.

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