PROBLEM TO BE SOLVED: To provide a defibrillation system capable of reliably performing defibrillation while reducing a burden on a patient.SOLUTION: A defibrillation system includes an electrode part mounted on the heart or the body surface for applying electric energy to the heart, a defibrillator for generating electric energy based on a predetermined defibrillation waveform, and a lead for electrically connecting the electrode part and the defibrillator. The defibrillation waveform has a first waveform part W1, and a second waveform W2 whose application is made immediately after the first waveform part W1, which generates a load voltage larger than that of the first waveform part W1, and whose application time is shorter than that of the first waveform part. A polarity at the termination of the first waveform part W1 is different from that at the initial stage of the second waveform W2.COPYRIGHT: (C)2016,JPO&INPIT【課題】患者の負担を低減しつつ、確実に除細動を行うことができる除細動システムを提供する。【解決手段】除細動システムは、心臓または体表面に取り付けられて心臓に電気エネルギーを印加する電極部と、所定の除細動波形に基づいた電気エネルギーを発生させる除細動器と、電極部と除細動器とを電気的に接続するリードとを備え、除細動波形は、第一波形部W1と、第一波形部W1の直後に印加され、第一波形部W1よりも大きい負荷電圧を発生させるとともに第一波形部よりも印加時間が短い第二波形W2とを有し、第一波形部W1の終了時における極性と、第二波形W2の初期における極性とが異なっている、【選択図】図5
