< Topic > The simple cleaning instrument which cleans inside torokaru which is used for the operation under the endoscope is offered. Solutions It designates the cleaning instrument 1 which cleans inside torokaru 11, as the elongate body of the cylinder shape, grasps on the one hand destal amount by the hand and in the handle section 6 which is manipulated, it makes the wiper 7 which inserts the part of other edge side in torokaru. It inhales body fluids such as blood and the fat drop to which wiper 7 rim formation, comes in contact at least inside torokaru 11 it designates as the absorptivity which is taken. It makes wiper 7, longer than torokaru 11, the same as the perforation hole of torokaru 11 or makes the almost same cross section, the same as the perforation hole of torokaru 11 or makes the almost same thickness. The inserting edge of wiper 7 flaring the neutron leakage stop valve 14 of the vapor for coelom expansion inside torokaru 11, although it passes, it turns cleaning instrument 1, to above necessary strength.< Choice figure > Drawing 4【課題】 内視鏡下手術に用いるトロカールの内部を清掃する簡便な掃除道具を提供する。【解決手段】 トロカール11の内部を清掃する掃除道具1は、棒状の細長体にし、一方の端部分を手で掴んで操作するハンドル部6に、他方の端側の部分をトロカールに差し込む拭取部7にする。拭取部7の少なくとも外周層は、トロカール11の内部に付着する血液や脂肪滴などの体液を吸い取る吸収性にする。拭取部7は、トロカール11より長くし、トロカール11の貫通孔と同じ又はほぼ同じ断面形状にし、トロカール11の貫通孔と同じ又はほぼ同じ太さにする。掃除道具1は、拭取部7の差込端がトロカール11内の体腔膨張用気体の漏れ止め弁14を押し広げて通過するのに必要な強度以上にする。【選択図】 図4