Donor cornea girdling device with negative pressure suction disc structure

The utility model discloses a donor cornea girdling device with a negative pressure suction disc structure, relates to the field of donation cornea acquisition, and aims to solve the problems that the edges of donor corneas cut by a traditional cornea acquisition mode are not neat enough and are different in size, and the corneas collapse and fold, corneal endothelial cells are damaged and the like due to anterior chamber pressure disappearance. According to the scheme, the negative-pressure suction disc comprises a negative-pressure suction disc body, a blade guide rail is arranged on the edge of the negative-pressure suction disc, a blade clamping device is arranged on the blade guide rail, and an air pumping and injecting spring injector is arranged on the negative-pressure suction disc body. The negative pressure suction disc containing a certain amount of air is removed by pressing the air pumping and injecting spring injector, the eyeball is sucked and fixed, the blade is clamped and fixed through the b