PROBLEM TO BE SOLVED: To properly determine whether blood is properly flowing to the head section of a living body by the cardiopulmonary resuscitation (CPR) or the pulsation of the heart.SOLUTION: The impedance measuring apparatus includes drive electrodes 22 and 22, receiving electrodes 24 and 24, a detecting means 26, a process operation means 15, and a display section 11. The drive electrodes 22 and 22 are arranged in the head section of the living body, to apply an electric current. The receiving electrodes 24 and 24 are arranged in the head section, to extract signals for measuring an impedance. The detecting means 26 is used for detecting a timing when blood is ejected from the heart of the living body. The processing operation means 15 performs arithmetic processing based on the impedance acquired by the receiving electrodes 24 and 24 and the timing detected by the detecting means 26, and determines a change in impedance or effects of ejection. The display section 11 is an output means for outputting the change in impedance or the effects of ejection which has been arithmetically processed by the processing operation means 15.COPYRIGHT: (C)2013,JPO&INPIT【課題】心臓蘇生術(CPR)や心臓の拍動により、生体の頭部へ血液が適切に流れているかの適否判定等を適切に行う。【解決手段】生体の頭部に配置され、電流を印加するためのドライブ電極22、22と、前記頭部に配置され、インピーダンスを測定するための信号を取り出すレシーブ電極24、24と、前記生体の心臓から血液が拍出されるタイミングを検出するための検出手段26と、前記レシーブ電極24、24によって得られるインピーダンスと前記検出手段26により検出されたタイミングとに基づく演算処理を行い、インピーダンスの変化又は拍出の効果を求める処理演算手段15と、前記処理演算手段15により処理演算されたインピーダンスの変化又は拍出の効果を出力する出力手段である表示部11とを具備する。【選択図】図1
