IMPLANTABLE MEDICAL DEVICE FOR PULSE GENERATION AND WITH MEANS FOR C0LLECTING AND STORING ENERGY DURING A RECHARGE PHASE

摘要

A pulse generating implantable medical device comprising a power source for energizing the medical device, a control unit, a plurality of switching units (SW-RC-1, SW-STIM-1, SW-RT-1), a timing unit, a pulse generating unit adapted to generate one or many stimulation pulses to be applied to human or animal tissue via one or many stimulation electrodes, and a coupling capacitor in series with each stimulation electrode. A stimulation pulse is adapted to be applied during a stimulation pulse timing cycle that includes a stimulation phase and a recharge phase, and the timing of a stimulation pulse timing cycle is controlled by said control unit via the timing unit and said switching units. The implantable medical device further comprises an energy storage unit and, during the recharge phase, one or many of the switching units is adapted to establish electrical connection between said one or many stimulation electrodes and said energy storage unit in order to collect and store energy from applied stimulation pulses.