Physiologically controlled pacemaker and pacemaker control system with detection of the spatial position of the patient

摘要

A cardiac pacemaker control system includes a stress detector system (1) for producing a controlled basic stimulation rate based on signals picked up within a patient's body related to physical stress and derived from a pre-ejection period of the patient. A detection device (10, 15) detects a spatial orientation of the patient, and produces an output switching signal (20) for changing the controlled basic stimulation rate depending upon the position of the patient which represents an additional measure of physical stress.