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US 4,286,586 AGranted
Orthopedic devices, materials and methods
AssigneeUnion Carbide Corporation
InventorJames E. Potts
Life of this patent
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AssigneeUnion Carbide Corporation
InventorJames E. Potts
Estimating the term…
There are provided orthopedic casts, splints, and the like, for use on a portion of a human or animal body, which are produced from a crosslinked copolymer of a lactone monomer and a polyfunctional acrylate monomer. The crosslinked copolymer, in the form of a sheet, web, bandage, etc., and, optionally, a supportive substrate, is heated above the softening point of the copolymer, manipulated to conform to the body portion, and cooled to a rigid state. In one embodiment, there is provided a bandage material, convertible to a rigid, porous, light-weight orthopedic cast, which comprises a substrate in the form of a netting, having on the surface of its strands a coating of the aforementioned crosslinked copolymer. The bandage material is heated to a temperature at which the crosslinked copolymer is soft and self-adherent and is then wrapped around the body portion in a series of overlying layers so as to conform to the contours of the body portion. The overlying layers are fused together to form a close-fitting unitary cast and are then cooled to a rigid state.
Orthopedic device for the fixation and immobilization of a portion of the human or animal body comprising a solid, polymeric material, shaped to the contours of said body portion, said polymeric material comprising crosslinked copolymer which is produced by crosslinking a thermoplastic, crosslinkable copolymer, having a reduced viscosity of from 0.2 to 2.0, at a concentration of 2 grams/ml. in benzene, which thermoplastic, crosslinkable copolymer is produced by reacting, at a temperature of from 25.degree. to 300.degree. C., an active-hydrogen containing initiator with a molar excess of a monomer mixture comprising:
Orthopedic device comprising a composite of a solid, polymeric material, comprising a crosslinked copolymer which is produced by crosslinking a thermoplastic, crosslinkable copolymer, which thermoplastic, crosslinkable copolymer is produced by reacting, at a temperature of from 25.degree. to 300.degree. C., an active hydrogen-containing initiator with a molar excess of a monomer mixture comprising:
Bandage material, suitable for forming an orthopedic cast, comprising a substrate in the form of a netting, the strands of said netting having on their surfaces a coating comprising a crosslinked copolymer, said crosslinked copolymer being produced by crosslinking a thermoplastic, crosslinkable copolymer which is produced by the process which comprises reacting, at a temperature from 25.degree. to 300.degree. C., an active-hydrogen containing initiator with a molar excess of a monomer mixture comprising:
Orthopedic cast for the fixation and immobilization of a portion of the human or animal body comprising a structure shaped to the contours of said body portion to form a close-fitting encasement therefor and having openings in its surface suitably disposed for the protrusion of connected non-encased body portions, the walls of said structure being a rigid, porous composite material comprising a plurality of fused overlying layers, each layer comprising:
Dependencies are inferred from the claim text.