A - Human Necessities – 41 – D
Patent
A - Human Necessities
41
D
A41D 13/12 (2006.01) A41H 43/00 (2006.01) A61B 19/08 (2006.01) A61F 13/00 (2006.01) D03D 15/00 (2006.01)
Patent
CA 2088096
Abstract of the Disclosure Three reusable surgical/medical fabrics provide improved barrier properties, as reflected by their Suter ratings, and also posses a "hand" similar to a "cotton hand". The Suter ratings are degraded in the order of 10% - 20% after 100 sterile reprocessing cycles. The fabrics are reliable free of pin holes, permitting their use as a single layer harrier panel. The fabrics are woven, respectively, with false twist 100/100 warp yarns and air textur- ized core and effect 2/60/100 fill yarns; flat trilobal 100/50 warp yarns and air texturized core and effect 2/60/100 fill yarns; and false twist 2/50/34 warp yarns and false twist 150/200 fill yarns. The fabrics are characterized by a minimum porosity of at least 10 x 106 pores/square centimeter and maximum average. and mean pore sizes. The fabrics have a thickness of at least .005 inch, a weight of at least 3.5 ounces per square yard and a filament density of at least 2.0 x 106 filaments per square inch. Filament density is obtained by increasing the number of picks in the greige construction to at least about 160 in the finished fabric. In two of the fabrics, the bulk of the greige construc- tion is increased by "mechanically" working the fabric in a "jet drying machine. -58-
Heiman Gary L.
Smith John M.
Bereskin & Parr
Heiman Gary L.
Smith John M.
LandOfFree
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