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US 6,855,860 B2Granted
Composite dressings for the treatment of wounds
AssigneeSyntagoll AG
InventorsZbigniew Ruszczak, Robert Mehrl, Johann Jeckle
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AssigneeSyntagoll AG
InventorsZbigniew Ruszczak, Robert Mehrl, Johann Jeckle
Estimating the term…
Non-occlusive composite wound dressings that comprises a material polymer wound-healing layer comprised of isolated polymer fibers, and a synthetic polymer foam layer having at least one surface physically adhered to the natural layer by the physical interlocking of the polymer fibers with the surface. Also, a process for the preparation of a non-occlusive composite wound dressing comprising contacting a synthetic polymer foam porous surface with a solution and/or suspension of natural polymer fibers in a medium, and removing the medium from the fibers under conditions that result in the fibers penetrating into pores of the surface and that form a dried composite of the polymer foam adhered physically to a layer comprising natural polymer fiber.
A non-occlusive composite wound dressing comprising (1) a natural polymer would-healing layer comprised of isolated polymer fibers consisting essentially of helical collagen fibers, and (2) an at least partially air- and water vapor-permeable, non-biodegradable, bio-inert and fully polymerized synthetic polymer foam layer having at least one pore-containing surface contacting said natural layer and adhered to said natural layer by the physical interlocking of said polymer fibers with said pore-containing surface, wherein said natural and synthetic foam layers are not chemically bonded to each other and free of adhesive materials.
A process for the preparation of a non-occlusive composite wound dressing comprising:
Dependencies are inferred from the claim text.