Design of a Hydraulic Prosthetic Hand: Adding an active thumb to the Delft Cylinder Hand

Body Powered Hand Prostheses provide the user with a replacement for a missing hand. Current body powered hand prostheses are inefficient and require large input forces for the control. Improvements are needed to provide amputees with adequate body powered hand prostheses. The Delft Cylinder Hand, a promising design for an underactuated...

Design of 2nd generation WILMER Open Socket

Upper limb amputation causes several functional disabilities and lowers patient’s self body image. At Delft University of Technology the WILMER Open Socket has been developed for below elbow amputees. It allows easy donning and doffing, and minimizes perspiration problems by leaving 75% of the skin uncovered. However, the relative large locking...

Design of a power-assistance system for body-powered hand-prostheses

Body-powered hand prostheses are characterized by low weight and low cost compared to externally powered prostheses. They also provide force and position feedback, allowing for accurate and fast position and force control of the prosthesis. Body-powered hand prostheses are often rejected on the basis of low efficiency. The high forces needed to...