Negative-pressure wound drainage device

The utility model relates to a negative-pressure wound drainage device which is characterized in that the device comprises a foam dressing, a transparent sticking film, a suction catheter, a liquid storage tank and a special negative-pressure aspirator, wherein the foam dressing is hermetically fixed on a wood surface through the transparent sticking film; one end of the suction catheter is fixed on the transparent sticking film with a drainage hole through a sticking sucker; the other end of the suction catheter is connected with the transparent liquid storage tank; and the liquid storage tank is connected with the special negative-pressure aspirator. The negative-pressure wound drainage device enhances the wound drainage function, remarkably quickens the occlusion of an infectious cavity and accelerates the wound to heal, thereby greatly reducing the use of antibiotics, effectively preventing the infection from happening, decreasing the time in hospital, relieving the pain of a patient, and reducing the work load of medical care personnel. The negative-pressure wound drainage device has the advantages of simple operation, convenient, safe and reliable use, blockage alarm, leakage alarm and strong practicability.