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CHABLOZ
Composants

CHABLOZ
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Lower Limbs


 MANUFACTURING METHOD

The manufacture of lower limb orthosis requires a good knowledge of human biomechanics to avoid moments of force that increase component wear, and a good knowledge of the properties of materials used to prevent deformation which will lead to a bad correction or a rupture.

Formerly manufactured  in leather steel, heavy and unreliable, we now manufacture these braces using two methods depending on the instructions and medico-technical requirements of the patient.


Thermoforming

We use a thin polypropylene that is thermoformed to the structure  of the orthosis which is manufactured in dural or carbon, and which is then adjusted on the positive cast.

This allows us to include metal to increase the rigidity and strength of the device.

Orthotics made using this method are relatively light and their finish similar to that of conventional leather devices (trim entirely sewn onto the polypropylene).

Carbon pre preg

This technique comes from the composites industry (aviation, aerospace ...). It consists of using fibres (carbon, Kevlar, glass, Dyneema) impregnated with epoxy resin that is used to optimize the mechanical properties of the device.

The choice of quality, quantity, and direction of the fibres is critical to optimizing the strength and weight of the equipment. Only the joints remain.

All our manufacturing protocols were developed in partnership with a professional in composite materials. This interdisciplinary work has allowed us to optimize the performance of our orthotics.

This method enables us to produce flexible strong parts with highly elastic properties.

The Orthotics have thus become dynamic.

Advantages:

  • Lowest weight
  • Increased reliability
  • The most reduced encombrance
  • The possibility of replacing the ankle joint with a mechanical blade with energy return. This blade is dimentioned according to its weight, activity and the size of the patient.

Disadvantages:

This material cannot be retouched, it requires the creation of  a prototype apparatus made of transparent plastic which allows us to validate the suitability of the future device, but lengthens the time of manufacture.

 

Originally the carbon is black, however we can paint the braces flesh-colored or coloured according to the requirements of our patients.