Surgery: splint – brace – or bandage – Orthopedic bandage – Splint or brace
Patent
1994-12-02
1996-09-10
Dvorak, Linda C.
Surgery: splint, brace, or bandage
Orthopedic bandage
Splint or brace
602 6, 602 16, 602 23, 602 26, A61F 500
Patent
active
055541046
ABSTRACT:
A soft-goods type, custom "in situ" formable knee brace for supporting weakened or injured knees is disclosed having formable components which conform to the unique configuration of an individual's leg surfaces. A flexible femoral component, extending circumferentially around the anterior femur, is pivotally connected with a flexible tibial component extending circumferentially around the anterior tibia. The pivoting hinge assemblies have their axes of rotation oriented along the axis of rotation of the knee joint, and may include condylar component pads. The initially flexible femoral and tibial components are secured to the leg and held in place by adjustable straps, and may be removed or adjusted by releasing or tightening the straps. The knee brace conforms to the leg surfaces through the use of a gas and liquid permeable matrix impregnated with a water-activated urethane polymer comprising, or contained within, each component. After tightening the knee brace around the upper and lower leg, and positioning the condylar component pads on opposite sides of the knee joint, the application of water to the matrix activates the urethane polymer which causes the components to harden into a substantially rigid structural member conforming to the unique shape of the individual's leg surfaces. An inlet duct may be included to introduce water into the matrix, and an outlet vent may be provided to permit the escape of air and gases. Padding is provided on each component for comfort. A calf component may be included to provide additional customized support.
REFERENCES:
patent: 4852557 (1989-08-01), Grim
patent: 4928678 (1990-05-01), Grim
patent: 4953543 (1990-09-01), Grim et al.
patent: 4986264 (1991-01-01), Miller
patent: 4996979 (1991-03-01), Grim et al.
patent: 5042464 (1991-08-01), Skwor et al.
patent: 5060640 (1991-10-01), Rasmusson
Dvorak Linda C.
Royce Medical Company
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