Patent ID: 8540699

Claim:
An apparatus for administering reduced pressure treatment to a wound on a body, the apparatus comprising: an overlay comprising: a top member comprising: a first top portion extending generally in a first direction; a second top portion adjacent to the first top portion, the second top portion completely circumscribing the first top portion and extending generally in a second direction that is generally perpendicular to the first direction and is generally in the direction toward the body at or surrounding the wound when the overlay is applied to a wound in use; and a first opening formed through the first top portion in communication with a port, the port being dimensioned and configured to connect to a conduit for connection to a source of reduced pressure; wherein; the first top portion and the second top portion are integrally formed; and the first top portion and the second top portion comprise a rigid or semi-rigid, liquid-impermeable material; a liquid impermeable base member supporting the top member, the base member comprising: a first base portion attached to the second top portion and extending generally in the first direction; and a second base portion adjacent to and integrally formed with the first base portion, the second base portion completely circumscribing the first base portion and extending generally in the second direction toward the body at or surrounding the wound when the overlay is applied to a wound in use so as to create a volume of space underneath the base member; a base layer portion adjacent to the second base portion, the base layer portion circumscribing the second base portion and extending generally in the first direction; and adhesive formed on at least one surface of the base layer portion, the at least one surface being the surface of the base layer portion configured to be closest to the body when the overlay is applied to a wound in use; wherein: the second top portion extends away from the first top portion so that the first base portion does not lie in the same plane as the first top portion; the second base portion extends away from the first base portion so that the base layer portion does not lie in the same plane as either the first base portion or the first top portion; the first top portion, the first base portion and the base layer portion each have an elongated shape; an outer perimeter of the base layer portion is larger than an outer perimeter of the first base portion; the outer perimeter of the first base portion is greater than an outer perimeter of the first top portion; and the first top portion, the first base portion, and the base layer portion are substantially parallel to one another.