US Patent 7867206 Vacuum therapy and cleansing dressing for wounds

A bandage for use with a vacuum source includes a wound dressing member to be placed in contact with a wound surface and a suction port associated with the wound dressing member. The member is configured with spacers contacting the wound surface to define suction space between the member and the wound surface. The member also includes holes in communication with the suction space. Passageways of the bandage are provided between the suction port and the holes.