| 摘要 |
An implantable cardiac stimulator, comprises a ventricular detection unit which is adapted to be connected to an intracardiac electrode and to record and detect ventricular events, a ventricular stimulation unit which is adapted to be connected to a ventricular electrode and to produce ventricular stimulation pulses for delivery to the ventricle of a heart, and a control unit connected to the ventricular detection unit and to the ventricular stimulation unit and adapted to actuate the ventricular stimulation unit in a VVI mode in ventricle-inhibited fashion in such a way that a ventricular stimulation pulse is triggered at a moment predetermined by a stimulation rate if it is not inhibited by detection of a natural ventricular contraction by the ventricular detection unit within a predetermined time window. The control unit is adapted to predetermine a stimulation rate, which is higher than intrinsic rate appropriate to the physiological demand.
|
