| 摘要 |
A medical tube (31) has at least one wire (37) running from the proximal end to the vicinity of the distal end, which wire (37) is connected to the tube adjacent the distal end so as to allow the distal tip to be deflected upon movement of the wire. The tube has gaps (71) therein on one side as to form a predetermined region of weak ness, whereby upon tension being applied to the wire (37) the distal end of the tube bends in the direction of the predetermined region of weakness. The medical tube may be a sheath (33) in which is disposed a preformed inner catheter (35) having a comple x curve formed into the distal end thereof. By suitable manipulation of the wire (37) and of the inner catheter (35) with respe ct to the sheath (33) the shape of the exposed portion of the distal end of the inner catheter may be transformed to a variety of shapes.
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