Mechanical evaluation of the “Hüfner hand” prosthesis

Background: Current body-powered hands have very low acceptance rates. They also require high activation forces. In the past, a high acceptance rate was reported for the then-available Hüfner hand, a hand which could be controlled by relatively low activation forces. Objective: The aim of this study was to measure and quantify the mechanical...

Passive prosthetic hands and tools: A literature review

The group of passive prostheses consists of prosthetic hands and prosthetic tools. These can either be static or adjustable. Limited research and development on passive prostheses has been performed although many people use these prosthesis types. Although some publications describe passive prostheses, no recent review of the peer-reviewed...

Prosthetic pride

An artificial leg, a hearing aid, a dust mask: there is a fair degree of stigma attached to some products. How do you deal with that as a designer? Kristof Vaes completed his doctorate on this subject in a joint study by the University of Antwerp and TU Delft.

The Lightweight Delft Cylinder Hand, the First Multi-Articulating Hand That Meets the Basic User Requirements

Rejection rates of upper limb prostheses are high (23-45%). Amputees indicate that the highest design priority should be reduction of the mass of the prosthetic device. Despite all efforts, the mass of the new prosthetic hands is 35-73% higher than that of older hands. Furthermore current hands are thicker than a human hand, they operate slower...

Mechanical Stability of Cementless Implants: The Glenoid Replacement

The aim of this project is to evaluate the contribution of different variables to the mechanical (in)stability of a cementless glenoid component. This is done using both numerical and experimental methods that allow the measurement or estimation of the bone-implant interface micromotions around the glenoid component in several scenarios that are...

Belastbaarheid van de menselijke huid op druk- en schuifkrachten

In deze skriptie worden resultaten uit de literatuur op het gebied van de mechanische belastbaarheid van de menselijke huid behandeld. Daarbij wordt alleen gekeken naar die belastinggevallen, waarvan verwacht kan worden dat ze bij het dragen van pro- en orthesen zullen voorkomen: drukkracht (eventueel negatief) loodrecht op de huid en...

Kinderpolsprothese voor flexie en rotatie (passief)

Onderzocht wordt een eenvoudig principeontwerp voor een kinderpolsprothese,geschikt voor rotatie zowel als flexie, waarbij de belangrijkste 'ontwerpkriteria zijn de eenvoud van bediening en de fabrikagekosten.