Sinus tract type wound treatment device

The invention relates to the technical field of medical instruments, in particular to a sinus tract type wound treatment device which comprises a curette and a supporting assembly, and the curette comprises a curette head and a curette rod; the supporting assembly comprises an air bag and an elastic piece, the air bag is of an annular structure, the elastic piece is in a sheet shape and has elasticity, and the air bag can be inflated and deflated; the supporting assembly has an initial state and a supporting state; when the supporting assembly is in an initial state, the air bag is shrunken, the elastic piece is in a rolled shape, and the relative position between the air bag and the curette rod is fixed; when the supporting assembly is in a supporting state, the air bag is inflated, the rolling degree of the elastic piece is reduced, the air bag is fixed relative to the inner wall of the sinus tract, and an operation channel is formed in the inner diameter position, corresponding to the annular structure, of