METHOD AND DEVICE FOR CONTROLLING CHANGE OF REPLENISHMENT CONTRACTION INTERVAL IN ACTIVE PLANT TYPE MEDICAL DEVICE

摘要

PROBLEM TO BE SOLVED: To cope with the interruption or lack of speed control signals by operating a means for gradually raising a replenishment contraction interval and raising a prescribed replenishment contraction interval as the first function of the information recorded beforehand of detected heart rhythm. ;SOLUTION: The supervision module 32 of a block 30 controls an analysis module 33 and a speed calculation module 34, the analysis module 33 analyzes a heart action curve and measures the rise and decline of the heart rhythm and the speed calculation module 34 decides the decline speed of a heart frequency equivalent to the increase of the replenishment contraction interval desired to be applied to a patient corresponding the preceding heart rhythm of the patient. The calculation module 35 calculates the replenishment contraction interval applied to the block 20 and decides the replenishment contraction interval during the progress of a heart cycle, and when a spontaneous action is not detected in a detection module 21 at the end point, stimulation pulses are supplied to a heart 10 in a stimulation module 22.;COPYRIGHT: (C)1997,JPO