The Hydraulic WILMER Tweezer: Design and Development of a Hydraulic Voluntary Closing Mechanism within a Body Powered Split-Hook Prosthesis

Background Despite its high demand, prostheses are too often abandoned because they fail to meet the main requirements control, comfort and cosmesis. Body-powered hook prostheses provide good control due to their proprioceptive feedback but are in general not efficient nor appealing. The WILMER group has developed an appealing voluntary-opening...

A new 3D printed Volume Adaptive Prosthetic Socket for below-the-knee amputees

The lower leg stump is not a stable volume. Volume changes during the day between -10% and +5% may occur and these are caused by fluid movements in the stump. These volume changes can mess up a good fitting prosthetic socket and this can lead to pain and injuries. A new invention called “Unimode Beams” solves this issue by placing over 100 beams...

Flex Fingers: Design of a partial hand prosthesis

This master thesis describes the development of Flex Fingers, a prosthesis for people with a partial hand defect. People with a partial hand defect miss fingers and sometimes part of their hand, they do have a functioning wrist. There are already many types of prostheses on the market, but there is no suitable prosthesis for the target group....