Pus drainage device with sampling function for patients with burns

The invention discloses a pus drainage device with a sampling function for patients with burns, which comprises a drain tube, a housing, an upper cover, a support block, a guide tube, a filter net, aholding channel, a limiting channel, a slider, a spring, a flow hole, a receiving hole, and a floater. The pus drainage device is ingenious in structure, good in functionality, simple to operate and low in time and manpower consumption; a sampling mechanism enables medical personnel to conveniently carry out sampling detection on drained liquid during drainage therapy of a patient; the problem iseffectively avoided that a traditional sampling method is inconvenient to perform and high in time and manpower consumption; in addition, a drainage alarm mechanism helps effectively prevent untimelyemptying of the drained liquid in the housing from affecting the drainage therapy of the patient; operation is finally simplified for medical personnel, treatment and healing are benefited for the patient. The pus drainage devi