| 摘要 |
Heart stimulating device (2) comprising stimulation threshold measuring means (4) for performing threshold searches by measuring a stimulation threshold value, a pulse generator (6) for delivering stimulation pulses of variable amplitudes and duration, a control means (8) for controlling the pulse generator (6) to deliver stimulation pulses of amplitudes related to the measured threshold value, an interval timing means (10) for initiating time-initiated threshold searches, wherein the time between consecutive time-initiated threshold searches is defined as a threshold search interval. The interval timing means (10) varies said threshold search interval, in dependence of the result of at least the last performed threshold search.
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