PROBLEM TO BE SOLVED: To provide an electrophysiological study apparatus, even when an electrode is disconnected when acquiring an intracardiac electrocardiogram using multiple electrodes, capable of easily specifying the disconnected electrode.SOLUTION: The electrophysiological study apparatus includes: an offset application part for pulling up at least one of a plurality of electrodes placed at prescribed positions in the heart and pulling down at least one thereof and a conduction determination part for determining potentials of the electrodes with a threshold and determining conduction of the electrodes. When an electrode is disconnected, the conduction determination part determines conduction of the disconnected electrode.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2016,JPO&INPIT【課題】多数の電極を用いて心内心電図を取得する際に、電極が断線しても、断線した電極を容易に特定できる電気生理学的検査装置を提供すること。【解決手段】心臓内の所定部位に留置する複数の電極のうち、少なくとも一つをプルアップし、且つ、少なくとも一つをプルダウンするオフセット付与部と、前記電極の電位を閾値判定して当該電極の導通を判定する導通判定部とを有する。これにより、電極が断線すると、導通判定部が断線した電極の導通を判定する。【選択図】図5
