Orthopedic casts with controlled flexibility
AssigneeEbi, LLC
InventorsRoy A. Morris, Jose A. Alvarez
Life of this patent
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Abstract
An orthopedic casting material comprising a substrate impregnated with a water-curable resin comprising an aromatic polyisocyanate and a polyol, wherein the free NCO level of said prepolymer is from about 6% to about 10%. Preferably the free NCO level is from about 7% to about 8%. Preferably the polyol has a molecular weight of at least 2,000, and a hydroxyl number of from about 28 to about 56, preferably from about 35 to about 40. The casting material may be packaged as a kit with a casting aid comprising a substrate impregnated with a lubricating material.
Claims42
An orthopedic casting material comprising a substrate impregnated with a water-curable prepolymer comprising an aromatic polyisocyanate and a polyol, wherein the free NCO level of said prepolymer is from about 6% to 10%, wherein said casting material is substantially free of lubricating materials.
An orthopedic casting material comprising a substrate impregnated with a water-curable prepolymer comprising an aromatic polyisocyanate and a polyol, wherein the free NCO level of said prepolymer is from about 6% to about 7.5%.
A kit for the formation of an orthopedic cast, comprising:
- (a) a casting material comprising a substrate impregnated with a water-curable prepolymer comprising aromatic polyisocyanate and a polyol, wherein the free NCO level of said prepolymer is from about 6% to 10%;
- and
- (b) a casting aid comprising a substrate and a lubricating material coated on said substrate.
Dependencies are inferred from the claim text.