An imaging means 50 is introduced into the body 101, for imaging the body 101, and then transferring the power or signals to and from an external device 5 by extending from the imaging device 50, the medical device 1, through a body wall 102 of the body from the body 101 cable 43 drawn Te, the electrical terminal portion 61 which is disposed at an end of the cable 43 is electrically connected to an external device 5 has an electrical contact 63, the electrical terminal portion covering the electrical contacts at least 63 It includes a cover body 60 which is bonded watertight with a predetermined intensity 61 is gripped when pulling out the cable 43 of the body from the body 101, and an easy 66 for removing the cover 60 from electrical terminal 61 to.医療装置1は、体内101に導入され、体内101を撮像する撮像手段50と、撮像装置50から延設して外部機器5と信号または電力を授受し、体内101から体外へ体壁102を介して引き出されるケーブル43と、ケーブル43の端部に配設され、電気接点63を有して外部機器5と電気的に接続される電気端子部61と、少なくとも電気接点63を覆って電気端子部61に所定の強度で水密に接着され、体内101から体外へケーブル43を引き出すときに把持されるカバー体60と、電気端子部61からカバー体60を取り外すための易剥部66と、を具備する。