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Publication Number
US-10406255-B2
Publication Date
2019-09-10
Expiration Date
Abstract
A hemostatic textile comprising glass fibers circular knit with bamboo-sourced rayon fibers in a tubular fashion. The knitted textile is scoured and dried to shrink the bamboo-sourced rayon relative to the glass fibers and to orient the glass fibers exteriorly of the bamboo-sourced rayon fibers such that when the hemostatic textile is administered to a wound, the glass fibers are the first to come in contact with any wound fluid, for example blood. This orientation aids in the activation of the hemostatic response which leads to faster clot times and improved overall wound-healing. A method of manufacturing and utilizing the hemostatic textile is also provided.
Core Innovation
The invention relates to hemostatic tubular textiles formed by circularly knitting glass fibers alternating stitches with secondary fibers in a tubular structure. The textile is configured so that the glass fibers are oriented exteriorly of the secondary fibers to aid in the activation of a hemostatic response. Finishing and treatment promote glass-to-fluid contact before the secondary fibers influence the surface presented to a wound fluid environment.
The method includes beam scouring the hemostatic textile by wrapping a first filter fabric in a spiral pattern about a central beam, wrapping the textile atop the first filter fabric with about 80% of each wrap overlapping the previous wrap, and wrapping a second filter fabric atop the textile. The scouring mixture uses sodium carbonate, a detergent, and an enzyme mixture, followed by rinsing with warmed water.
Additional manufacturing details include a relaxed configuration or a two-ply tubular structure, with secondary fibers that can include bamboo-sourced rayon fibers. The textile can be turned inside out prior to scouring so that one or more exterior faces are oriented towards an interior portion of the tubular structure, and tumble drying is used to shrink or de-size the textile while maintaining the exterior orientation of the glass fibers.
Claims Coverage
The partial content includes three independent method claims. Across these claims, the independent coverage centers on forming a hemostatic textile by knitting glass fibers alternating with secondary fibers in a tubular, two-ply, or relaxed configuration, beam scouring with spiral filter-fabric wrapping about a central beam, scouring with a sodium carbonate/detergent/enzyme mixture and warmed-water rinsing, tumble drying, and configuring the glass fibers to be oriented exteriorly to aid activation of a hemostatic response.
Circular knitting glass fibers alternating stitches with secondary fibers
Circular knitting glass fibers alternating stitches with secondary fibers to form the hemostatic textile.
Beam scouring with spiral wrapped filter fabrics about a central beam with about 80% overlap
Beam scouring the hemostatic textile by wrapping a first filter fabric in a spiral pattern about a central beam, wrapping the textile atop the first filter fabric with about 80% of each wrap overlapping the previous wrap, and wrapping a second filter fabric in a spiral pattern atop the textile.
Sodium carbonate, detergent, and enzyme scouring mixture
Preparing a scouring mixture with sodium carbonate, a detergent, and an enzyme mixture, urging the scouring mixture through the hemostatic textile, and rinsing with warmed water.
Tumble drying and configuring glass fibers exteriorly
Tumble drying the hemostatic textile and configuring the glass fibers to be oriented exteriorly of the secondary fibers to aid in the activation of a hemostatic response.
Two-ply tubular or relaxed configuration with inside-out turning before scouring
Forming the hemostatic textile in a tubular, two-ply, or relaxed configuration, including turning the textile inside out prior to scouring so that one or more exterior faces are oriented towards an interior portion of the tubular structure.
Across the independent claims, the inventive concept is a manufacturing method for a hemostatic textile that combines circular knitting of glass fibers alternating stitches with secondary fibers, beam scouring using spiral filter-fabric wrapping about a central beam, scouring with a sodium carbonate/detergent/enzyme mixture followed by warmed-water rinsing, tumble drying or de-sizing, and configuring the glass fibers to be oriented exteriorly of the secondary fibers to aid activation of a hemostatic response.
Stated Advantages
Aids in the activation of a hemostatic response.
Provides a configuration where glass fibers are oriented exteriorly of secondary fibers to aid activation of a hemostatic response.
De-sizes the hemostatic textile via tumble drying.
Documented Applications
Use as a hemostatic textile intended to provide an activated hemostatic response via the clotting cascade.
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