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Sleijfer, Josh (author)Humans are efficient at moving due to their exceptional mastery of bipedal locomotion. Several models have been made that attempt to model the motion of the centre of mass with a spring-mass system with various degree of success. For example, a two dimensional model tracks the height of the centre of mass well and a three dimensional model...bachelor thesis 2023
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Verhaegen, Tim (author)People with a shoulder amputation are very much dependent on active total arm prostheses to provide in their self-care and to perform basic daily activities. Research on the development of active upper limb prosthetics has been growing over the past couple of years. The state-of-the-art total prosthetic arms that have been developed are very...master thesis 2019
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Nieuwendijk, J. (author)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...master thesis 2010
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Bruinekool, R.A. (author)Body powered voluntary closing (VC) hand prostheses allow users to proportionally control grasping devices in a very intuitive sense using the concept of extended physiological proprioception (EPP). The operating force required for voluntary closing devices are however so high that muscle fatigue becomes a problem. The goal of this paper is to...master thesis 2012
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Lommerse, Luuk (author)Active hand prostheses aid people, who suffer from an upper limb deficiency, in performing activities of daily living. The two types of active hand prostheses available are the myo-electric prosthesis and body-powered prosthesis. Even though both allow a user to grasp objects, the downsides are major. The high actuation...master thesis 2021
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Versluis, E.W.L. (author)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...master thesis 2015
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Kiefte, T.M. (author)Nowadays forearm prosthesis are far from optimal, factors that need to be optimized are the mass, the price and the wear temperature of the prosthesis. This can be done by choosing cardboard as constructive material. In this report the relevant control mechanisms are investigated. A body powered prosthesis voluntary closing control is chosen as...master thesis 2011
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Tousi, A.R. (author)The voluntary opening prostheses have a limited pinch force, limiting the performance of the users in their daily activities. The proprioceptive feedback provided by these prostheses is inverse and very counterintuitive. This is caused by the voluntary opening operating principle of these prostheses. In order to improve the functional...master thesis 2011
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De Boeck, Jan (author)In the context of prosthetic devices, the absence of natural sensory feedback poses a significant challenge, leading to limited proprioceptive sensation and reduced control over artificial limbs. This study explores the potential of establishing a magnetic connection between prosthetic devices and muscles to enhance proprioceptive feedback and...master thesis 2023
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Broekzitter, Jelle (author)Many users of body-powered upper extremity prostheses experience difficulties using their device and a large group abandons usage altogether. Shoulder control via Bowden cable is widely used because of the intuitive use and low cost, but requires large shoulder movements and high operating forces that, according to literature, often exceed the...master thesis 2019
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Blok, P. (author)Rapport Nr. A-572 - Mechanismen die in prothesen worden toegepast treedt regelmatig ongewenste wrijving op. Met konventionele middelen kan dit niet altijd worden tegengegaan, reden om een studie te verrichten naar de mogelijkheden die het op elkaar afrollen van de onderdelen te bieden heeft. In deze inleidende studie wordt nagegaan welke...master thesis 1991
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Van der Beek, R.E. (author)Problem definition: The ocular prosthetic does not resemble the natural eyes enough, the pupil does not dilate and contract. To make the patients feel more complete the prosthesis should look as much as a natural eye as possible. Assignment: Improve the ocular prosthetic, by making it able for the pupil to dilate and contract, to let it resemble...master thesis 2016
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de Jong, Randy (author)Body-powered prosthetic hands used by below-elbow amputees function in two phases. There is the opening and closing motion of the hand (Motion Phase) and the phase when the hand is in contact with an object, and the fingers apply a pinching force (Pinching Phase). Each phase requires a different set of dynamics to properly function. In the...master thesis 2020
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Geurts, M.A. (author)In The Netherlands, about 3750 people have an arm prosthesis, and the rejection rate is astonishing. Especially in puberty, appearance and fashion become more important. Teenagers can be very honest, direct and even cruel in their opinion, and when you wear ‘an ugly prosthesis’ the criticism seems credible. Several studies were conducted with...master thesis 2010
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Mulder, Jelmer (author)In the Netherlands roughly 20.000 people wear an ocular prosthetic as a consequence of losing their eye due to an accident or disease. An ocular prosthetic is a type of facial prosthesis that replaces an absent natural eye. The main goal of an ocular prosthetic is to provide an aesthetic replacement of a real eye. It does not restore the ability...master thesis 2022
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Burema, Arine (author)Introduction: Amputees still experience problems with the use of their upper limb prostheses, mainly in the lack of comfort and functionality. This results in rejection of the prosthesis or overuse injuries due to compensatory movements. The comfort and functionality should be improved by reducing weight and increasing the degrees of freedom....master thesis 2021
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Van Sitteren, M.M. (author)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...master thesis 2016
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Gale Dewo, Gale (author)An upper limb prosthesis, i.e. a hand prosthesis, is a device to replace the function of an upper limb on upper limb amputees. In developing countries, amputees’ access to the device is scarce to unavailable. In addition to the absence of experts in those areas, currently there are no automatic measurement methods for upper limb amputees...master thesis 2018
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Stoop, E.M. (author)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....master thesis 2010
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ten Cate, W.J.A. (author)This graduation project was started on the observation that most orthopaedic companies seem to be still far away from producing 3D printed sockets for customers. Research into manual and digital manufacturing methods resulted in an overview of the possibilities for integrating digital tools into the socket production process. Together with the...master thesis 2017