PROBLEM TO BE SOLVED: To provide a nerve stimulation apparatus capable of continuing to apply nerve stimulation even if stimulating electrodes are somewhat out of place after being indwelled.SOLUTION: A nerve stimulation apparatus 1 comprises: stimulating electrodes 6a-6d a stimulation signal generation unit 101 for generating a stimulation signal to be applied to the stimulating electrodes an electrode selection unit 102 for selecting a pair of stimulating electrodes to which the stimulation signal is applied, from among the stimulating electrodes 6a-6d a detection sensor 7 and a detection unit 103 for detecting a response of a patient and a control unit 104 for controlling the operation of the electrode selection unit 102 and of the stimulation signal generation unit 101 to exert electric stimulation. The control unit 104 calculates the amount of effect of the electric stimulation to determine the effect of the electric stimulation on the basis of the detection value of the response of the patient detected by the detection unit 103 when the electric stimulation is provided. Unless the determined amount is within a predetermined allowable range, the control unit can control the electrode selection unit 102 to change the pair of stimulating electrodes to which the stimulation signal is applied to another pair of stimulating electrodes.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】神経刺激装置において留置後の刺激電極の位置がある程度ずれても、安定して神経刺激を継続することができるようにする。【解決手段】神経刺激装置1は、刺激電極6a~6dと、これら刺激電極に印加する刺激信号を生成する刺激信号生成部101と、刺激電極6a~6dのうちから、刺激信号を印加する刺激電極の対を選択する電極選択部102と、患者の反応を検出する検出センサ7および検出部103と、電極選択部102および刺激信号生成部101の動作を制御して電気刺激を行う制御部104と、を備え、制御部104は、電気刺激時に検出部103によって検出された患者の反応の検出値に基づいて電気刺激の効果を判定する判定量を求め、この判定量が予め決められた許容範囲に入らない場合に、電極選択部102を制御して、刺激信号を印加する刺激電極の対を他の刺激電極の対に変更することができる構成とする。【選択図】図3
