PROBLEM TO BE SOLVED: To provide a crushing tip with which a contact surface area between the crushing tip, which vibrates ultrasonically, and a crystalline lens is increased, and with which crushing and emulsification of the crystalline lens can be performed efficiently.SOLUTION: In this crushing tip which is inserted into a crystalline lens of an eye of a patient during an ophthalmic surgery and which is given ultrasonic vibrations to crush the crystalline lens and suck out the crushed crystalline lens, one or a plurality of partition walls 11, 21, 31 are provided in a through hole 10a in a cylindrical tip body 10 in such a way as to traverse the through hole 10a. The distal end of the partition wall 21 may be caused to protrude out further than the distal end of the tip body 10, and the protruding part may be caused to extend as far as the outer peripheral edge of the tip body 10.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2018,JPO&INPIT【課題】 超音波振動する破砕チップと水晶体との接触面積が従来の破砕チップに比して飛躍的に増大させ、水晶体の破砕と乳化を効率よく行える破砕チップを提供する。【解決手段】 眼科手術時に患者の目の水晶体内に挿し込まれ、超音波振動を付与することによって前記水晶体を破砕し吸引排出するための破砕チップにおいて、円筒状のチップ本体10の貫通孔10a内に、貫通孔10aを横断するように一つ又は複数の仕切壁11,21,31を設けた。仕切壁21の先端をチップ本体10の先端より突出させてもよく、突出させた部分を幅方向にチップ本体10の外周縁まで延長させてもよい。【選択図】 図3
