Searched for: contributor%3A%22Plettenburg%2C+D.H.+%28mentor%29%22
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Groeneveld, Iris (author)
Background<br/>An upper limb amputee currently has two choices for a body-powered prosthesis, a Voluntary Opening (VO) or Voluntary Closing (VC) hand prosthesis. Which type is best, depends on the task and the individual. Currently, there are no good options for VO and VC in one design. <br/>Objectives<br/>To design a proof-of-principle of a...
master thesis 2023
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Kracht, Sebas (author)
For patients with a hand disability, hand exoskeletons can improve their ability to perform activities of daily living.<br/>Its complicating that on the hand little space is available to build an exoskeleton. So, moment arms of actuators must be small. This complicates generating adequate moments. Strong actuators may be a solution, but they add...
master thesis 2021
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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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Mastenbroek, Merel (author)
Background Upper limb prostheses help people with an upper limb deficiency in performing activities of daily living. They can be divided into two categories; body-powered and externally powered prostheses. The advantage of body-powered prostheses is that they provide feedback to the user. The advantage of externally powered prostheses is the low...
master thesis 2021
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Leseman, Gailey (author)
Many patients with an upper-limb deficiency choose not to wear their prosthetic devices due to a multitude of reasons, including physical discomfort and unintuitive, cognitively demanding control methods. A new haptic interface was developed combining the desirable control characteristics of body-powered control prostheses with the comfort of an...
master thesis 2021
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de Groot, Patty (author)
Patients who suffer from Duchenne Muscular Dystrophy, have to live with hand impairments for over 15 years. This significantly influences their ability to live independently. Currently, static splinting interspersed with stretching of the hand is the course of treatment for this patient group and developed active hand orthoses focus mainly on...
master thesis 2021
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Boogaard, Lars (author)
Lower limb exoskeletons enable paraplegic patients to stand-up and walk again. However, the weight and overall functional performance of the exoskeleton prevents them from being widely used. To reduce the weight and increase<br/>the performance, pneumatic actuators can be used as an alternative to the commonly used electromechanical actuators....
master thesis 2021
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van Houts, Chris (author)
Nowadays the design of prosthetic hands is mainly focused on myo-electric control for more functionality. And easy producible 3d printed prosthetics to lower the costs of a custom prosthesis. As a result of this change of focus, the body powered prosthetic hands currently on the market are mainly simple clamping mechanisms with no innovative...
master thesis 2021
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Kieft, J. (author)
Introduction: Almost 57 percent of above elbow amputees stop using their prosthesis. One of the main factors of non-wear is the high weight. Pneumatic actuation can be more lightweight than electronic actuation, and might therefore help with reducing the mass of a prosthesis and...
master thesis 2020
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Kusters, Madelon (author)
Aim: This project aims to design a lightweight, inexpensive and easy to use upper arm prosthesis through improving the design of ARM3D, which is a 3D printed body-powered transhumeral arm prosthesis. This study will cover general shortcomings of body-powered arm prostheses as the weight, cost, amount of parts and limited accessibility of them....
master thesis 2020
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Hoek, A.L. (author)
Hand prostheses commonly advertise on three main selling points: strength, speed and lightweight. Most conventional hand prostheses are only able to combine two of these three attributes. Therefore, combining all three attributes into a single device can result in a commercially attractive hand prosthesis. Another interesting point, particularly...
master thesis 2020
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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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Mos, Daniek (author)
The WILMER appealing prehensor is a body-powered (BP) prosthesis for people with a trans-radial upper limb deficiency, which is highly appreciated because of its outward appearance and functionality. Currently, prehension of the WILMER appealing prehensor is voluntary opening (VO). Voluntary closing (VC) prehension could offer the prosthetic...
master thesis 2020
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Jansen, Hilde (author)
Prostheses are challenging to obtain in low-income countries due to a lack of experts, remote locations, unfortunate production circumstances and an inadequate amount of research. A 3D printed WILMER open fitting for transradial amputees has been developed, which can solve this problem. It is entirely 3D printed and connects the prosthesis to...
master thesis 2020
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Vervaet, joost (author)
A large proportion of upper extremity prostheses are abandoned by their users. <br/>Commonly, the main reasons for abandonment are related to comfort, control and cosmetics.<br/>Prostheses are often experienced as too heavy and have limited functionality. <br/>A pneumatic power source is able to provide a relatively high force using a small and...
master thesis 2020
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Verzendaal, Jan Maarten (author)
This thesis studies the possibility of energy increase in tape-spring assemblies through stacking, defined as the practice of placing tape-springs on top of each other in parallel. consists of five chapters. Chapter 2 consists of a paper that presents a theoretical approach to stacking of tape-springs, and studies the potential of energy storage...
master thesis 2020
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Karthaus, Zoë (author)
Although a wide variety of upper limb prostheses is available, a large number of prostheses include wrist joints providing an insufficient amount of functionality. Compensatory movements have to be made in order to execute activities of daily living, causing fatigue and discomfort. This dissatisfaction amongst prosthetic users, which can result...
master thesis 2019
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Lambers, Jorrinde (author)
Current upper-limb prostheses are often rejected as a result of high activation forces that are needed for control. Another reason for rejection is the absence of appropriate proprioceptive feedback. In this study, a pneumatic control system was designed that decreased the activation forces and where proprioceptive feedback was provided. The...
master thesis 2019
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Peeters Weem, Froukje (author)
Upper limb amputees, using a body-powered prosthesis, generate energy with their shoulders which leads to opening or closing of the prosthesis. The preference for one of these types, voluntary opening (VO) or voluntary closing (VC), differs for individuals and for task specifics. Research is, therefore, done regarding terminal devices which...
master thesis 2019
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Broderick, Cathy (author)
This project investigates the needs of diabetic and vascular amputees to establish design criteria for a new lower-limb prosthesis liner specifically for diabetes and vascular patients. Initially, a literature review was conducted to investigate liner material properties and outcomes during use, as well as how often diabetic and older amputees...
master thesis 2019
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