Foam coated CSR/surgical instrument wrap fabric
AssigneePrecision Fabrics Group, Inc.
InventorsCharles G. Barnes, A. Frank Baldwin
Life of this patent
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Abstract
A sterilizable, water vapor permeable, bacterial barrier foam-coated medical fabric suitable for use as a medical instrument wrap or CSR wrap which features a nonwoven textile-type substrate coated with a continuous network of an open cell microporous foam that forms a network of interconnected cells distributed among and covering nearly the entire surface of the substrate. This foam extends into the substrate itself and presents a network of interconnected cells that form a tortuous path from the face of the fabric to the opposite side of the fabric to define a bacterial barrier to inhibit or stop the passage of bacteria, yet permits steam and water vapor to pass into and out of the fabric.
Claims25
A sterilizable, water vapor permeable, bacterial barrier foam-coated medical fabric suitable for use as a medical instrument wrap composed of a nonwoven textile substrate having a continuous network of an open cell microporous, hydrophobic foam distributed among and covering substantially the entire top surface of the textile substrate and extending into the textile substrate, the network of interconnected cells forming a tortuous path from the face of the fabric to the back of the fabric and defining a bacterial barrier yet allowing steam and water vapor to pass into and out of the fabric, the fabric having a Frazier air permeability at 0.5" W.C. (INDA 70.1-70) in the range of about 50 to about 250 cfm and a bacterial filtration efficiency (mil. spec. 36954C) for a single ply of at least 60%.
A two ply, sterilizable, water vapor permeable, bacterial barrier foam-coated medical fabric suitable for use as a medical instrument wrap composed of a pair of nonwoven textile substrates having between them a continuous network of an open cell microporous, hydrophobic foam distributed among and covering substantially the entire contacting surface of each of the textile substrates and extending into each of the textile substrates, the network of interconnected cells forming a tortuous path from the face of one of the fabrics to the back of the other fabric and defining a barrier to bacterial while allowing steam and water vapor to pass into and out of the fabric, the fabric having a Frazier air permeability at 0.5" W.C. (INDA 70.1-70) in the range of about 15 to about 200 and a bacterial filtration efficiency (mil. spec. 36954C) of at least 60%.
Dependencies are inferred from the claim text.