The utility model purpose what provide a kind of operated eye with cataract crystal grain grinding device,It includes mainly a hollow tube,A shaft is equipped in the what tube body,And the front end of the shaft is equipped with a flexible pull ring,The flexible pull ring can with pushing shrapnel on assembling what shaft and elastic element cooperates,And make the flexible pull ring of shaft front end can be by stretching out and retracting inside tube body front end； Therefore,When pressing pushes shrapnel,Flexible pull ring is stretched out,To entangle cataract crystal grain,When what release pushes shrapnel,Generated clamping force in what tube body is inside contracted by flexible pull ring moment,Reach the purpose for crushing crystal grain.本新型目的在於提供一種眼部手術用之白內障晶粒粉碎裝置，其主要是包含有一中空管體，於該管體內設有一軸桿，而該軸桿的前端設有一伸縮拉環，該伸縮拉環能與組裝於軸桿上的按壓彈片及彈性元件配合，而使軸桿前端的伸縮拉環可由管體前端內部伸出及縮回；因此，當按壓按壓彈片時，使伸縮拉環伸出，用以套住白內障晶粒，於鬆開按壓彈片時，藉伸縮拉環瞬間內縮於管體內所產生的夾壓力，達到粉碎晶粒之目的。
