Seat for knee joint cavity perfusion treatment

The utility model provides a seat for knee joint cavity perfusion treatment, which comprises a seat and a back, and further comprises a support telescopic rod which is arranged on the lower surface of the seat, can be telescopically adjusted in length and is used for supporting the seat and adjusting the height of the seat; the hip pad paper replacing device comprises hip pad paper which is arranged on the upper surface of the chair seat; the hip pad paper replacing device is arranged on the lower surface of the chair seat and is used for automatically replacing the hip pad paper on the chair seat; the foot pedal is arranged below one end of the chair seat and is connected with the chair seat through a connecting plate; the pedal is hinged to the lower end of the connecting plate and can rotate relative to the connecting plate; and the barrier-free armrests are arranged on the chair back, are hinged with the chair back and can rotate relative to the chair back. The height of the seat for joint cavity perfusio