Searched for: subject%3A%22body%255C-powered%22
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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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Vertongen, Jens (author)
The development of the Delft Cylinder Hand (DCH) demonstrated the design of a lightweight and functional hydraulic body-powered (BP) hand prostheses. The low friction losses of the hydraulics make it an attractive alternative to a classical mechanic transmission using rigid linkages and Bowden cables. There are benefits and trade-offs associated...
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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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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Panhuyzen, Rogier (author)
Background Despite its high demand, prostheses are too often abandoned because they fail to meet the main requirements control, comfort and cosmesis. Body-powered hook prostheses provide good control due to their proprioceptive feedback but are in general not efficient nor appealing. The WILMER group has developed an appealing voluntary-opening...
master thesis 2020
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Tromp, Sanne (author)
Background: The majority of the amputated population is living in low-resource countries, but only a small minority has access to rehabilitating services. The accessibility of upper limb prostheses in these countries is poor due to limited technical and medical resources. 3D printing is regarded as a promising manufacturing alternative in...
master thesis 2020
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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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Noë, tom (author)
Children missing an upper limb face a wide range of issues. Besides the difficulties adult prosthetic users face, such as unsatisfactory function, comfort, and appearance, children also have to deal with the challenges associated with growth. The goal of this thesis was to design an appealing solution for these growing children with an upper...
master thesis 2019
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Schelvis, Davey (author)
In the Netherlands, there are around 3750 patients suffering from an upper limb deficiency. Many different prosthetic hands have been designed to give these people the function of their hand back. Of the people who own such a prosthetic hand, about forty percent does not wear their hand and about half of the wearers does not use all of the...
master thesis 2018
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Hadiputra, Andika Praditya (author)
master thesis 2018
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Markna, Riho (author)
The work presented in the thesis was motivated by the history of cineplasty and aims to create a supportive system for the body powered upper limb prostheses. A mechanical signal (pulling) from a cineplastic site or a harness system (e.g. shoulder harness) is used to control a prosthetic device. These signals are often too weak to comfortably...
master thesis 2018
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van der Kroft, Merle (author)
Access to prosthetics is very limited to many potential<br/>users, while the need is high. There are two main reasons<br/>for this that both are related to the production of prosthetics: the lack of skilled people and high costs. Minimized<br/>assembly production using 3D printing could be a solution: no training is required, assembly takes only...
master thesis 2018
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Coehoorn, H.H. (author)
The field of upper limb prosthetics focuses on the development of artificial replacement devices for upper limb loss, from partial finger loss to amputation of the entire arm at the shoulder. Hand and hook prostheses are designed to replace the functionality of a missing hand and can be powered either by external sources (e.g. electricity) or by...
master thesis 2017
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Bierbaum, S. (author)
Myoelectric as well as body-powered hand prostheses, the two commercially available prosthetic control types, have both their specific advantages. Advanced myoelectric prostheses for example have the characteristic of facilitating multiple degrees of freedom due to grip type variation and/or wrist movements. Compared to prosthetic devices with...
master thesis 2017
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Schipperen, R.D. (author)
The Delft Cylinder Hand and similar body powered hand prostheses require an input force that is too high for daily tasks. The force is perceived as uncomfortable and leads to a high rate of users abandoning their prosthesis. Reducing the input force by increasing the mechanical advantage of the system is not feasible, as this would unfavourably...
master thesis 2015
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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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Van Mil, E.H.A. (author)
An important advantage of body-powered prostheses, compared to other types of prostheses, is the presence of proprioceptive feedback. Proprioception makes it easier to perform goal directed movements. Body-powered prostheses (for transradial upper-limb amputees) used nowadays make use of one way control, which means that only the opening or the...
master thesis 2013
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Gudfinnsdottir, T. (author)
Body-powered prostheses are active upper limb prostheses that utilize harnessing of body movements to grasp objects. The high rejection rates (up to 45%) of body-powered prostheses indicate that users are not satisfied with their prostheses. One of the most prominent problems is the discomfort experienced while wearing and operating the...
master thesis 2013
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Valk, M.L. (author)
The available shoulder harness controlled prostheses do no fulfill the requirements of the users. It is unknown for which operating forces and cable displacements the user can make good use of proprioceptive feedback without feeling pain, discomfort or fatigue. These operating forces and cable displacements can be related to grasping forces and...
master thesis 2012
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