Signaling method for an implantable cardiac stimulation device and a cardiac stimulation device

A stimulation device for a heart having a myocardium, comprising:

• a pulse generator for producing cardiac stimulation pulses;
• a stimulation electrode for delivering the pulses, the stimulation electrode being connected to the pulse generator;
• a signal generator for producing and delivering pulse triggering signals at defined moments in time, the signal generator being connected to the pulse generator;
• a cardiac phase measurement sensor for recording a first measurement value which is dependent on the current phase of the cardiac cycle;
• and
• means for measuring time to determine a cycle duration between the occurrence of a predetermined phase of a defined first cardiac cycle and the occurrence of the same phase of the directly subsequent second cardiac cycle, the means being connected to the cardiac phase measurement sensor;
• wherein a time matching means is provided to predetermine the period of time between the occurrence of the predetermined phase of the second cardiac cycle and the subsequent production of a pulse triggering signal, the time matching means being connected on an input side to the time measurement means and on an output side to the signal generator.