Reduced-pressure, composite manifolds
AssigneeKCI Licensing, Inc.
InventorsEdward S. Griffey, Larry Tab Randolph, Charles Alan Seegert
Life of this patent
Estimating the term…
Abstract
A reduced-pressure treatment system for treating a wound on a patient includes a composite manifold that may help prevent or minimize injury to a wound edge of the wound being treated with reduced pressure. The composite manifold includes a perimeter manifold member and an inboard manifold member. The perimeter manifold member is designed to not collapse substantially under reduced pressure in a therapy range. The perimeter manifold member may be more rigid with respect to compressibility than the inboard manifold member. A sealing member is used to form a fluid seal over the wound, and a reduced-pressure subsystem provides reduced pressure to the composite manifold. Other systems, methods, and dressings are presented.
Claims20
A reduced-pressure treatment system for treating a wound, the reduced-pressure treatment system comprising:
- a sealing member adapted to form a fluid seal over the wound;
- a composite manifold, comprising:
- a perimeter manifold member adapted to support an edge of the wound and carry a load asserted by the sealing member, the perimeter manifold member having an interior portion and a first bulk modulus K1, and
- an inboard manifold member disposed adjacent to the interior portion of the perimeter manifold member, the inboard manifold member having a second bulk modulus K2, wherein K1 is greater than K2;
- and
- a reduced-pressure subsystem for providing reduced pressure to the composite manifold.
A composite manifold for use in a reduced-pressure treatment system, the composite manifold comprising:
- a perimeter manifold member adapted to support a wound edge and carry a load asserted by a sealing member, the perimeter manifold member having an interior portion and a first bulk modulus K1, and
- an inboard manifold member disposed adjacent to the interior portion of the perimeter manifold member, the inboard manifold member having a second bulk modulus K2, wherein K1 is greater than K2.
A method of treating a wound site with reduced pressure, the method comprising the steps of:
- disposing a composite manifold adjacent to the wound site;
- forming a fluid seal over the composite manifold;
- fluidly coupling a reduced-pressure source to the composite manifold;
- and
- wherein the composite manifold comprises:
- a perimeter manifold member adapted to support an edge of the wound, the perimeter manifold member having an interior portion and a first bulk modulus K1, and
- an inboard manifold member disposed adjacent to the interior portion of the perimeter manifold member, the inboard manifold member having a second bulk modulus K2, wherein K1 is greater than K2.
Dependencies are inferred from the claim text.