< Topic >In the medical application endoscope and the catheter, there are no times when it decreases the manipulation precision of the Tip bend, Tip operating mechanism of the cost which is superior in the endurance whose it is possible to assure the compact conversion of diameter size, is offered low.SolutionsFlexibility tube the Tip bend it possesses with the function part 4 where is concatenated to the end face side of 8 where is concatenated to the Tip side of 6 of the long shaku which possesses flexibiility and the flexibility tube and the flexibility tube, 3 where it is laid out in regular interval lap according to direction these wires W1, W2 and W3 extending do at least mutually parallel Out inside the flexibility tube. And furthermore as, when the physical relationship of each wire mutual layout is maintained that way, end face side of the particular each wire is jointed to the function part, Tip side of the particular each wire is jointed by the Tip bend, manipulates the function part and by the fact that each wire is hauled, revolution fluctuates & is crooked the Tip bend.< Choice figure >Drawing 1【課題】医療用内視鏡やカテーテルにおいて、先端湾曲部の操作精度を低下させること無く、径寸法のコンパクト化を図ることが可能な耐久性に優れた低コストの先端操作機構を提供する。【解決手段】可撓性を有する長尺の可撓管6と、可撓管の先端側に連結された先端湾曲部8と、可撓管の基端側に連結された操作部4とを有し、可撓管の内部には、周方向に沿って等間隔に配置された少なくとも3本のワイヤW1,W2,W3が互いに平行に延出する。さらにまた、各ワイヤ相互の配置の位置関係をそのまま維持した状態で、当該各ワイヤの基端側が操作部に接続されていると共に、当該各ワイヤの先端側が先端湾曲部に接続され、操作部を操作して各ワイヤを牽引することで、先端湾曲部を旋回・揺動・屈曲させる。【選択図】図1
