< Topic >With the absorption tool which is used for coupling remedy, with the simple structure which can make production cost inexpensive, at the same time fine adjustment of suction force the instrument which is possible easily is offered.SolutionsAs needed as cup section in the inner circle wall of 1 of the cylinder form the lower part aperture at size and the cup section sleeve possibly the piston the piston section 2 which designates 21 which the dense Inlaying is done and the piston rod as spiral shellfish axis 22 and spiral shellfish axis 22 the spiral shellfish conjunction Interpolation the spiral shellfish hole which is done is provided on top of cup section 1, with the spiral shellfish hole and turning spiral shellfish axis 22 relatively, the rotary handle 31 which makes piston move 21 inside the cylinder having, it becomes.< Choice figure >Drawing 3【課題】カップリング治療に使用する吸引具で、製造コストを低廉にできる簡単な構造で、且つ吸引力の微調整を容易に可能である器具を提供する。【解決手段】適宜大きさで下方が開口したシリンダ形状のカップ部1と、カップ部の内周壁に摺動可能に密嵌したピストン21及びピストンロッドを螺軸22としたピストン部2と、螺軸22を螺合挿通する螺孔をカップ部1の上部に設けると共に、螺孔と螺軸22を相対的に回転させてピストン21をシリンダ内で移動させる回転ハンドル31とを備えてなる。【選択図】図3
