| 摘要 |
PURPOSE: To provide tubular matter easy to produce though having fine constitutional parts small in diameter and having a structure freely bendable itself according to external operation so as to be capable of pref. advancing through a winding insertion route along the winding shape thereof. CONSTITUTION: In an active bending mechanism of tubular member, at least connection units 2 (A) mounted by a predetermined number at a predetermined interval in the longitudinal direction of tubular member 1 and shape memory members 3a, 3b, 3c (B) formed so as to be raised in temp. by the supply of a current to contract or extend longitudinally and connected to the respective connection parts of the adjacent connection units at both end parts thereof to mutually connect the connection units are provided to the tubular matter 1 having flexibility and a necessary number of conductors 4 (C) connected to the connection parts of the predetermined connection units are provided along the tubular member from the end part on the operation side thereof so as to individually supply a current to the shape memory members. |
