Miniature negative pressure adjustable drainage device special for microscopic hand and foot surgery department

The utility model relates to the technical field of medical treatment, in particular to a miniature negative pressure adjustable drainage device special for microscopic hand and foot surgery, which comprises a drainage tube, a threaded tube is fixed at one end of the drainage tube, a first fixing tube is fixed at the other end of the threaded tube, the diameter of a round hole is gradually increased along the direction towards the threaded tube, and a second fixing tube is fixed at the other end of the threaded tube. And rubber plugs are installed in all the round holes through pulling structures, a liquid collecting device is installed at the end, back on to the threaded pipe, of the first fixing pipe, and a negative pressure device is installed on the side wall of the second fixing pipe. The device is reasonable in design, through arrangement of a second fixing pipe and rubber plugs, the device can drive an inner groove to move through rotation of the second fixing pipe, the number of opened rubber plugs is