Cardiac pacer for pacing a human heart.

摘要

A cardiac pacer which generates pacing pulses at a predetermined pacing rate, comprises a device (8) for generating an alternating signal which is unable to pace the heart (1). The pacing pulses and the alternating signal are transmitted to the heart. The alternating signal after transmittal to the heart is measured and processed (9) in a manner that a respiratory signal is obtained. The predetermined pacing rate is then varied dependent on the respiratory signal.