PROBLEM TO BE SOLVED: To reliably transmit abnormal information of a body part and an indwelling part to a healthcare profession as visual information in a medical device including the body part to be fixed to a surface of a living body, the indwelling part to be placed in the interior of the living body, and a lead part for connecting the body part to the indwelling part.SOLUTION: A medical device 1 includes an abnormal signal display part 40 that is provided at a midway portion of a lead part 30 and displays an abnormal signal of at least one of a body part 10 and an indwelling part 20. The medical device is disposed outside the living body, with the indwelling part 20 placed in the interior of the living body.COPYRIGHT: (C)2015,JPO&INPIT【課題】生体表面に固定される本体部と、生体内に留置される留置部と、本体部及び留置部を接続するリード部を備える医療用デバイスにおいて、本体部や留置部の異常情報を視覚情報として確実に医療従事者に伝えることができるようにする。【解決手段】リード部30の中途部に設けられ、本体部10及び留置部20の少なくとも一方の異常信号を表示する異常信号表示部40を備え、該異常信号表示部40が、留置部20を生体内に留置した状態で生体外に配される医療用デバイス1を提供する。【選択図】図1