PROBLEM TO BE SOLVED: To provide an intraocular lense inserting instrument with a novel structure which enables the smaller deformation of intraocular lenses while effectively preventing the rotation of the intraocular lenses within an inserting cylinder part.SOLUTION: Upper and lower flat surfaces 25 and 26 are formed extending flatly over the entire length of a through hole 22 in an inserting cylinder part 20 while being connected smoothly to left and right wall surfaces 28 and 30 over the entire length of the through hole 22. The left and right wall surfaces 28 and 30 have vertical linear parts extending almost parallel in the vertical way on the side of the base end opening part 23 at least at a part in the direction of the extension of the through hole 22. A tapered part which is made curved to be concave inward gradually toward the tip opening part 24 with a gradual reduction in the radius of curvature so that the upper and lower flat surfaces 25 and 26 approach each other gradually to lessen the sectional area of the inserting cylinder part is formed to make the tip opening part 24 almost oval.COPYRIGHT: (C)2008,JPO&INPIT【課題】挿入筒部内における眼内レンズの回転を有効に防止しつつ、眼内レンズを小さく変形せしめることの出来る、新規な構造の眼内レンズの挿入器具を提供すること。【解決手段】挿入筒部20における貫通孔22の全長に亘って平坦に延びる上下平坦面25,26を形成する一方、該貫通孔22の全長に亘って該上下平坦面25,26を左右壁面28,30と滑らかに接続すると共に、該貫通孔22の延出方向の少なくとも一部に、該左右壁面28,30が基端開口部23の側では略平行に上下方向で延びる縦方向直線部を有する一方、先端開口部24へ行くに連れて内方に凹となる湾曲形状でその曲率半径が次第に小さくされることにより、該上平坦面25と該下平坦面26が次第に接近せしめられて断面積が小さくされた先細部を形成することによって、該先端開口部24を略オーバル形状とした。【選択図】図1
