Patent ID: 7754937

Claim:
A wound packing for application to a wound under a cover, the cover establishing a confined space in which said wound packing is located and to which suction is applied to remove wound exudates from the wound and from said wound packing while said wound packing is in place, said wound packing promoting wound contraction along an axis, said wound packing being arranged for facilitating the transfer of wound exudates from the wound and from said wound packing, said wound packing comprising a plurality of biocompatible nonabsorbent fibers coupled together to form a nonabsorbent anisotropic structure having a first compressive response along a first axis and a second compressive response along a second axis perpendicular to the first axis, the second compressive response being different from the first compressive response, said nonabsorbent anisotropic structure comprising at least two layers, each layer being formed from biocompatible fibers coupled together, each layer being coupled to another layer, said at least two layers comprising a substantially flat first layer having an upper surface and a lower surface and a second layer having a nonlinear cross section with a plurality of peaks and troughs, wherein said troughs of said second layer are coupled to said upper surface of said first layer to form a corrugated unit and wherein said corrugated unit is interconnected to another corrugated unit by coupling said peaks of said second layer of one corrugated unit to the lower surface of said first layer of an adjacent corrugated unit.