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Hinges help healing.

For a badly sprained or broken ankle, the first step to recovery may be a new all-plastic Variable Geometry Orthosis (VGO), designed by Clinitex Medical Corp. of Huntersville, N.C. It is the first such device to feature living hinges.

The all-plastic orthosis, which is significantly lighter than plaster casts, covers a foam leg wrap from below the knee to the foot and is secured with hook-and-loop closures. The VGO has two side paddles with living hinges made of ICI's Maranyl|R~ AMX-9 glass filled nylon 6/6 compound. Four living hinges hold the side supports in place like the fittings on a ski boot and enable the orthosis to conform to any leg size or shape.

In addition to the comfort and better fit afforded by the living hinges, the orthosis also is designed with a lower foot support. This low heel height takes the limp out of the user's walk and eliminates the awkward ankle rotation and hip displacement that come from the higher heels used on plaster casts. ICI Fibres, 910 North Elm, Greensboro, NC 27401; (800) 849-4424; Fax (919) 378-0470. Circle 170.
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Title Annotation:Variable Geometry Orthosis constructed with living hinges made by ICI Americas Inc. ICI Fibres using Maranyl AMX-9 glass filled nylon 6/6 compound
Publication:Plastics Engineering
Date:Nov 1, 1992
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