Liquid Silicone Rubber

How do innovative silicones improve prosthetic liners?

A smiling man making exercices with his physiotherapist to get use to his left artificial leg.

 

 

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https://silicones.elkem.com/EN/Our_offer/KEC/Pages/Innovation-Cases/Liquid-Silicone-Rubber.aspx2019-07-15T08:25:12Z

The Challenge

Manufacturers of medical devices and prosthetic liners use soft silicone technologies in their products to improve patient’s care and comfort.

When making prosthetic liners, for example, silicones are essential to create soft and flexible materials that can be rolled over the patient's residual limb for protection and allow the suspension of a prosthetic device.

Silicones are essential in prosthetic liner creation for example, because of their soft and flexible properties. So silicone liners can be rolled over the patient's residual limb for protection and allow the suspension of a prosthetic device.

Liners control swelling, avoid skin abrasions and reduce the pain that amputees often experience. These features provide amputees with the flexibility they need to undertake a wide range of tasks, including small and precise movements.

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Thermoplastic vs Silicones

See why you should choose Silicones instead of Thermoplastic:

After some research and experience, we made some conclusions/concluded that:

  • Silicones were preferred because of their biocompatibility, durability and ease of use, though there was sometimes a lag in some of the mechanical properties of softer materials.
  • TPUs offered good elasticity and ease of use but could cause local irritation on the skin and the liners deteriorated over time.
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