Provided is a medical device which can protect a sub lumen surely and a process for producing the medical device. Such a medical device is the catheter (100) including the resinous tubular main body (sheath) (10) containing the main lumen (20) and the sub lumen (80) which is placed outer peripheral side of the main lumen (20) extending along the longitudinal direction of the main lumen (20) the reinforce layer (30) which is placed between the main lumen and the sub lumen (80) to surround the main lumen (20) and the wire (91) placed at outer peripheral side of the tubular main body (10) to the sub lumen (80) so as to surround the outer periphery of the main lumen (10). The wire (91) is embedded in the tubular main body (10) to support the outer periphery of the tubular main body (10).本發明提供一種可確實地保護次腔之醫療機器及醫療機器之製造方法。於此種醫療機器中,導管(100)包括:樹脂製之管狀本體(鞘)(10),其形成有主腔(20)、及配置於主腔(20)之外周側且沿著上述主腔(20)之長度方向延伸之次腔(80);補強層(30),其配置於主腔(20)與次腔(80)之間,且包圍主腔(20);及金屬線(91),其配置於較次腔(80)更靠管狀本體(10)之外周面側,且以包圍主腔(20)之外周之方式配置。金屬線(91)埋設於管狀本體(10)中,且支撐管狀本體(10)之外周面。11‧‧‧內層12‧‧‧外層20‧‧‧主腔50‧‧‧塗層70‧‧‧操作線80‧‧‧次腔82‧‧‧中空管90‧‧‧線圈91‧‧‧金屬線100‧‧‧導管t‧‧‧長度(壁厚)
