Nuclear pore membrane composite medical dressing

The present invention relates to a nucleopore membrane composite type medical dressing. It includes basic membrane layer, said basic membrane layer is formed from single layer of nucleopore membrane or formed by superimposing several layers of nucleopore membranes, all the nucleopore membrane layers are successively up-down arranged according to the pore diameter from large to small, between membrane and membrane they are cohered together by means of pressure-sensitive adhesive, the pore diameter range of nucleopore membrane is 1-10 microns, its permeability range is 0.05%-50%, on one side of basic membrane layer directly-contacted with surface for wound a layer of skin friendly layer made up by selecting aquagel or silicon gel material is superimposed, on the side of basic membrane layer non-contacted with surface of wound a layer of reinforcing layer made up by using transparent porous semipermeable polymer material or non-woven fabric is superimposed.