Wrist Prosthesis: New Two Degrees-Of-Freedom Hydraulic Wrist Mechanism for Hand Prostheses

Since there is a lack of functional active two degree of freedom wrist mechanisms for hand prostheses, one is designed in accordance to the needs of the user, such that it can be provided with hand prostheses and used by patients. A list of requirements is used to design a wrist mechanism, after which the prototype is tested to validate the...

Natural grasping, design and evaluation of a voluntary closing adaptive hand prosthesis

Replacement of a missing hand by an artificial alternative remains one of the biggest challenges in rehabilitation. Although many different terminal devices are available, around 27% of the amputees does not actively use their device and 20% totally refrains from wearing it. There are various reasons for prosthesis abandonment, e.g. wearing...

A New type of body-powered prosthesis: Using wrist flexion instead of shoulder movement

Body powered prostheses have many advantages: They are reliable, lightweight and relatively cheap. The disadvantage is the need of a shoulder harness, which causes discomfort, pain and trouble donning and doffing the prosthesis. The goal of this thesis is to develop a body-powered prosthesis without the need for a shoulder harness. This is...