Laser in-situ windowing device with brain protection function

The utility model relates to the technical field of medical instruments, in particular to a laser in-situ windowing device with a brain protection function, which comprises a pushing pipe fitting and a protection filter screen, a cutting component is arranged at the front end of the pushing pipe fitting, and the cutting component is used for cutting an original embedded support. The protective filter screen is of a metal woven structure and is arranged on the downstream of the cutting assembly, the protective filter screen can expand when reaching a preset position, the protective filter screen comprises a funnel-shaped collecting part after expansion, the smaller end of the collecting part is fixedly connected to the pushing pipe fitting, and the other end of the collecting part is fixedly connected to the cutting assembly. The larger end of the collecting part faces the cutting assembly and is provided with an opening, so that fragments and the like generated in the windowing process of an original implante