Patent ID: 8708938
Filing Date: 2014-04-29
Classification: A61F,D04B,D10B,Y10T

Abstract:
1. A low density substrate for a medical bandage, comprising: (a) a heat-treated elongate fabric having two opposed major faces connected by yarns extending between the faces, and two opposed, longitudinally-extending side edges defining a predetermined fabric thickness; and (b) a plurality of longitudinally-extending voids formed in the fabric and communicating with both of the two opposed major faces for reducing the density of the substrate while maintaining sufficient mass to harden into a rigid structure upon activation of a reactive system; wherein the fabric comprises a warp knitted fabric and the density reducing voids are formed by wales omitted at intervals along the length of the substrate in one or more of a chain, inlay and center stitch of the fabric and stitches omitted in the width direction of the substrate when viewed in the length direction of the substrate; and wherein the major faces and longitudinally-extending side edges of the substrate are covered with a tubular cushioning material constructed of non-woven material adapted to pass water therethrough to the substrate, and the cushioning material and the substrate together form a unitary medical bandaging product; and wherein the longitudinally-extending side edges include one or more low modulus yarn selected from the group consisting of polyester, polyethylene and polypropylene.