As for the assembly body for system traction with operation, you remove on the long support component and are laid out possibly, you include the arm component of the pair which can move alongside the same component. The arm component includes, respectively, penetrating the fixed component and the external housing and the fixed component which are laid out inside the external housing and the housing outside the same, the aisle which extends and. The long support component has extended, passing by the aisle, the fixed component allows the fact that it moves to opposite direction mutually alongside the support component where the arm component is long, the arm component directs mutually and in order to obstruct the fact that it moves, energization is done to engagement state of the release possibly long support component. Each arm component, in order furthermore, the revolution of the rotary possible engagement part and the engagement part which can be engaged in each retractor part in 1st direction vis-a-vis the arm component to restrict, release possibly furthermore includes the fixed element which energization is done to engagement state of the engagement part.< Choice figure >Drawing 1手術での組織牽引のための組立体は、細長い支持部材上に取り外し可能に配置されていて、同部材に沿って動かすことのできる一対の腕部材を含んでいる。腕部材は、それぞれ、外部ハウジングと、同外部ハウジング内に配置されている固定部材と、外部ハウジング及び固定部材を貫いて延びる通路と、を含んでいる。細長い支持部材は、通路を通って延びており、固定部材は、腕部材が細長い支持部材に沿って互いに反対方向に動くことを許容し、腕部材が互いに向けて動くことを阻止するように、解放可能に細長い支持部材との係合状態へ付勢されている。各腕部材は、更に、各開創器部分に係合できる回転可能な係合部分と、係合部分の回転を腕部材に対して第1の方向に制限するように、解放可能に係合部分との係合状態へ付勢されている固定要素を更に含んでいる。【選択図】図1
