Patent attributes
A wound covering assembly includes a wound covering membrane and a removable layer. The wound covering membrane can allow liquid or air to pass through the wound covering membrane from a wound site covered by the wound covering membrane to ambient and vice versa. The removable layer covers a portion of the wound covering membrane and is removable from the wound covering membrane when the wound covering membrane is affixed to skin around the wound site. The removable layer is configured and connected with the wound covering membrane such that air and liquid are inhibited from passing through the wound covering membrane and the removable layer when the wound covering membrane is affixed to skin surrounding the wound site and the removable layer is connected with the wound covering membrane. The wound covering assembly can be used with a pump assembly to provide negative pressure to the wound site.