< Topic > The tube travel abroad coming out of the fluid which is in the midst of joint mirror operating is minimized, when from soft organization around the operation field by the surgeon discharge of the fluid is made possible while simultaneously, offering also the invasion mouth for operation, which for the joint mirror operation instrument is stabilized in addition as for the surgeon keeping the invasion mouth for operation, offer the tube travel abroad coming out minimization device which can decrease the quantity of the tube travel abroad coming out of the fluid which occurs with around organization.Solutions The sleeve where it covers the joint mirror instrument, possesses the central tube cavity which was made at size and the size which the removal possibly are arranged is characterized by the distal (2036) edge and the proximal edge Outside the sheath which possesses the drainage tube cavity inside being overturned, it was arranged, it spreads outside, the rib of plural longitudinal axis directions It is arranged between the aforementioned ribs, the aforementioned drainage tube cavity and the fluid plural it possesses the drainage open part which you have communicated, the passage of plural longitudinal axis directions And the aforementioned drainage tube cavity and the fluid the manifold which is arranged in the proximal edge of the sleeve which has communicated Being the device in order to minimize the tube travel abroad coming out which it has, the aforementioned plural drainage open parts, the tube travel abroad coming out minimization device which features that removal of the excessive fluid from organization around the operation region is made possible.< Selective figure >Figure 2【課題】関節鏡手術中の流体の管外遊出を最小化し、外科医による手術野周囲の軟組織から流体の排出を可能にすると同時に、関節鏡手術器具のための安定した手術用侵入口も提供し、また外科医は手術用侵入口を保持しながら、周囲組織で発生した流体の管外遊出の量を減らすことができる管外遊出最小化装置を提供すること。【解決手段】関節鏡器具を覆い、取り外し可能に配置されるサイズおよび寸法で作られた中央管腔を有し、遠位端および近位端によって特徴付けられたスリーブ;内部に排液管腔を有する鞘の外側を覆って配置された、外側に広がる、複数の前後軸方向のリブ;前記リブの間に配置さ
