Expansion system for a medical and surgical dressing

Abstract From the Canadian patent

A medical and surgical dressing has an expansion system designed to cover, yet be spaced apart from a healing wound, when the dressing is applied. In its expanded configuration, the dressing is bubble shaped. The dressing includes an adhesive material for adhering to the skin of a patient surrounding the wound, and further includes several layer of material which permit circulation and filtration of air entering the space defined by the expanded bubble. The dressing and expansion system avoid direct contact with the healing wound, yet fully protect the wound from the outside environment.