Being the medical application guide wire, this the metal core (1) and the spiral wire (2) and to have the conveying component (3) and the boss (4), the metal core (1), to be the variable diameter structure which designs to be the respective rectilinear condition structure (1-3), step condition structure (1-2) and rectilinear condition structure (1-1) from near edge to the far edge, the spiral wire (2) one or to be multiple, the metal core (1) to be locked by the rectilinear condition structure (1-1) of the far edge and step condition structure (1-2), the conveying component (3) one or to be multiple, the metal core (1) step condition structure (1-2) It is locked, the boss (4) the aforementioned conveying component (3) the metal core after (1) is locked to step condition structure (1-2). It plants the said medical application guide wire and the occasion where the instrument is conveyed, the conveying component on that plants and the resistance which the shrubbery instrument receives to every section by rubbing with the inner wall of the instrument, becomes uniform, can convey the shrubbery instrument to human body tube intracavity securely.医療用ガイドワイヤであって、これは金属芯(1)と、螺旋ワイヤ(2)と、搬送部材(3)と、ボス(4)とを備え、金属芯(1)は近端から遠端へ、それぞれ直線状構造(1-3)、段状構造(1-2)、直線状構造(1-1)となっている可変径構造であり、螺旋ワイヤ(2)は一つ又は複数であり、金属芯(1)の遠端の直線状構造(1-1)及び段状構造(1-2)に固定され、搬送部材(3)は一つ又は複数であり、金属芯(1)の段状構造(1-2)に固定され、ボス(4)は前記搬送部材(3)の後の金属芯(1)の段状構造(1-2)に固定される。該医療用ガイドワイヤは植え込み器具を搬送する際、その上の搬送部材が植え込み器具の内壁と摩擦することにより、植え込み器具が節毎に受ける抵抗が均一になり、植え込み器具を人体管腔内に確実に搬送できる。
