Pre-chopping nucleus sleeving and cutting device

The utility model discloses a pre-chopping nucleus cutting device, which relates to the field of medical equipment and comprises a tube body mechanism, a threaded seat mechanism is arranged at one end of the tube body mechanism, a connecting rod is arranged on the inner wall of the tube body mechanism, a fixed cap mechanism is arranged at one end of the threaded seat mechanism, and a thumb ring is arranged at one end of the tube body mechanism. The dustproof function of the short rod is achieved by arranging the fixed cap mechanism, the function of splitting the crystalline lens nucleus by forming a sleeve cutting area is achieved by arranging the tube body mechanism and the threaded seat, the fixed cap is slightly rotated, the cutting seat rotates the positions among the multiple spring blocks, the fourth spring retracts, the fixed cap is taken down and rotated, and the tube body is held by the four fingers of the right hand. The thumb is inserted into the thumb ring and moves leftwards to push the movable s