PROBLEM TO BE SOLVED: To provide an apparatus for impedance respiration measurement and a system for respiratory state measurement which are resistant to body movement artifacts and highly accurately measure a respiratory state.SOLUTION: The apparatus for impedance respiration measurement includes: a plurality of electrodes 11-1 to 11-8 which include an input pair electrode for applying a constant current and an output pair electrode for detecting a potential difference, and which are stuck to a surface of a living body so as to surround a prescribed position on the surface of the living body a measuring means 22 which is a potential difference detection means for detecting the potential difference of a first output electrode pair when a current is given from a first input electrode pair, and detecting the potential difference of a second output electrode pair when a current is given from a second input electrode pair and a calculation means 54 for calculating average impedance on the basis of the potential differences obtained from each of the first output electrode pair and the second output electrode pair.COPYRIGHT: (C)2013,JPO&INPIT【課題】体動アーチファクトに対して強く、高精度な呼吸状態測定を可能とする。【解決手段】定電流を印加するための入力ペア電極と電位差を検出するための出力ペア電極とを含む生体の表面の所定の位置を囲繞するように貼着された複数の電極11-1~11-8と、第1の入力電極ペアから電流を与えた場合に、第1の出力電極ペアの電位差を検出し、第2の入力電極ペアから電流を与えた場合に、第2の出力電極ペアの電位差を検出する電位差検出手段である測定手段22と、前記第1の出力電極ペアと前記第2の出力電極ペアとのそれぞれから得られた電位差に基づき平均インピーダンスを算出する算出手段54とを具備する。【選択図】図1
