Johnson & Johnson Products, Inc.

Johnson & Johnson Orthopaedics, Inc.

Carolina Narrow Fabric Company

Hee K Yoon

George J Buese

Gene W Kammerer

Robert L Sun

Horace L Freeman

The invention provides improved orthopedic cast bandages and improved orthopedic casts which include one or more colors. The orthopedic cast bandages of the invention comprise an open mesh fabric tape and a hardenable liquid resin coated onto the fibrous tape. At least one coloring agent is visibly disposed on at least a portion of the fibrous tape. The coloring agent is stably retained by the fibrous tape in the presence of the hardenable liquid resin. Because the coloring agent is stably retained by the fibrous tape, the invention provides for colored orthopedic casting tapes which do not require the use of colored liquid resins. In addition, multiple colored, patterned orthopedic casts, not heretofore available, are provided by the invention.

Orthopedic casting bandage

A ravel-free orthopaedic casting tape made with a fiberglass substrate coated with a water reactive hardenable resin. The fiberglass substrate is coated with a soft flexible binder to provide a thin stretchable coating on the substrate prior to the application of the water reactive hardenable resin to the substrate to form a casting tape. The soft flexible binder provides ravel resistance to the casting tape.

Ravel-free orthopaedic casting tapes

The casting tape substrate of the present invention is coated with a very soft, low modulus binder which is compatible with the polyurethane prepolymer or other curable resin which will be subsequently coated onto the substrate to form the casting tape. The binder prevents the cut ends of the substrate from unraveling. The binder may be applied in a pattern or continuously to the entire length of the substrate or may be applied at spaced zones where the knitted substrate will be cut to form a particular length of casting tape.

A composition with reduced tack used to reinforce polyurethane casts is disclosed. The composition has controlled foaming activity and a viscosity between 100,000 and 1,000,000. The foaming activity and viscosity and reduced tack allow the formulation to be readily applied to the cast area that is to be reinforced.

Reinforced casting material

A conformable casting tape made with a combination of high modulus fibers and an elastomeric extensible fiber. The tape is capable of stretching 40 to 200% in the length direction and has a power of between 40 and 125 grams per inch of width at 30% elongation.

Conformable fiberglass casting tape

A fast setting casting tape made with a polyurethane prepolymer prepared with a hydrophilic polyol and an isocyanate. The casting tape has faster setting times than casting tapes made with hydropholic polyols.

Fast-setting casting tape

An improved polyurethane orthopaedic cast bandage is disclosed. The bandage is a polyurethane prepolymer coated on an open-weave, fibrous substrate. The prepolymer contains dimorpholinodiethylether as a catalyst which gives the cast bandage increased shelf stability and excellent set time.

Growing community of inventors

North Brunswick, NJ, United States of America

Hee K Yoon