The invention relates to the technical field of arthroscopic surgeries, and particularly discloses a filter for collecting
pathological tissues in arthroscopic surgeries, the filter comprises a box body, a water inlet
pipe and a water outlet
pipe, a first chamber and a second chamber are symmetrically embedded in the box body, and observation windows are symmetrically embedded in the surface of the box body; a water outlet
pipe is connected to the surface of the bottom of the box body, a second connecting pipe and a first connecting pipe are symmetrically installed at the bottom of the water inlet pipe, and the second connecting pipe is connected with the box body. According to the filter for collecting the
pathological tissue in the arthroscopic
surgery, the first connecting pipe and the second connecting pipe are arranged, switching between the water inlet pipe and the first connecting pipe and the second connecting pipe is achieved through the three-way valve, switching to the second connecting pipe is achieved during
conventional surgery operation, and switching to the first connecting pipe is achieved when the
pathological tissue needs to be collected in the
surgery; tissue enters the filtering cavity along with liquid through the first connecting pipe, is filtered through the holes in the
tail end, is intercepted and is directly collected through a pipeline, and the tissue is conveniently taken out.