Searched for: subject%3A%22Upper%255C%2Blimb%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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van der Stoep, Eline (author)
People that are recovering from a stroke need frequent and high-intensity training to regain their upper-limb capacity. This will eventually result in better performances and higher quality of their daily life. Robotic devices are often used to assist stroke patients in rehabilitation. The minimally-supervised portable hand trainer, which is...
master thesis 2023
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van de Ruit, M.L. (author), van der Velden, Levinia L. (author), Onneweer, Bram (author), Benner, Joyce L. (author), Haarman, Claudia J.W. (author), Ribbers, G.M. (author), Selles, R.W. (author)
Background: Upper limb impairments in a hemiparetic arm are clinically quantified by well-established clinical scales, known to suffer poor validity, reliability, and sensitivity. Alternatively, robotics can assess motor impairments by characterizing joint dynamics through system identification. In this study, we establish the merits of...
journal article 2023
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Schuurbiers, Stefan (author)
Of all reported cases, muscular pain in the arms is the second main cause of work-related musculoskeletal disorders (WMSDs) in European workers. The most popular prevention method for shoulder-related WMSDs are passive shoulder exoskeletons, as of their light weight and ease of use. Yet, due to their static force-angle characteristic, passive...
master thesis 2022
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Wenk, Nicolas (author), Jordi, Mirjam V. (author), Buetler, Karin A. (author), Marchal Crespo, L. (author)
Combining immersive virtual reality (VR) using head-mounted displays (HMDs) with assisting robotic devices might be a promising procedure to enhance neurorehabilitation. However, it is still an open question how immersive virtual environments (VE) should be designed when interacting with rehabilitation robots. In conventional training, the...
journal article 2022
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Sinke, Maaike (author), Chadwell, Alix (author), Smit, G. (author)
Background: Research into prosthesis training and design puts a burden on the small population of people with upper-limb absence who can participate in these studies. One solution is to use a prosthetic hand simulator, which allows for attaching a hand prosthesis to an intact limb. However, whether the results of prosthesis simulator studies...
review 2022
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Sinke, Maaike (author)
<b>Introduction: Prosthesis simulators are essential tools for research and rehabilitation. They can be used to increase the amount of participants in research studies or to assist in rehabilitation. The main goal of this master thesis is to design a functioning prosthesis simulator, which can be used with commonly used...
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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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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Tiel Groenestege, Jurjen (author)
Objective: The objective of this study was to develop and evaluate a 3D printed hydraulic actuation system, applied in a multi-articulate upper limp prosthesis. The prosthesis was designed to produce sufficient pinch force to be competitive with comparable devices (30 N), and weigh less than a human hand (&lt;0.43 kg). The actuator should...
master thesis 2021
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Smit, G. (author)
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...
journal article 2021
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Di Brigida, Liliana (author), Fiorillo, Iolanda (author), Naddeo, Alessandro (author), Vink, P. (author)
This study aimed to analyse the discomfort threshold (that could be linked to sensitivity or sensation) of different regions in hand and elbow to support hand-held devices' design. Indeed, there are no studies regarding the hand and elbow discomfort threshold or sensitivity. To overcome these literature gaps, the discomfort threshold of hand...
conference paper 2021
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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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de Wit, Jesse (author)
Background: Last decades myoelectric prostheses have become more usable, functional and reliable. Yet, the cost of myoelectric upper limb prostheses are still a hindering factor of widespread usage of the prostheses. In developing countries, where the demand for prostheses is relatively higher, commercial myoelectric prostheses are out of reach...
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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Tschiersky, Martin (author), Hekman, Edsko E.G. (author), Brouwer, Dannis M. (author), Herder, J.L. (author), Suzumori, Koichi (author)
In this letter we demonstrate a pneumatic bending actuator for upper-limb assistive wearable robots which uses thin McKibben muscles in combination with a flexure strip. The actuator features both active soft actuation and passive gravity support, and in terms of force transmission bridges the gap between the classic rigid type actuators and...
journal article 2020
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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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Peñas de Santos, Pablo (author)
Generic musculoskeletal models are not reliable predicting inter-individual variations in muscle forces. Scaling the model parameters is necessary to represent the muscle characteristics of the subjects and thus to pinpoint the differences in force capacity. Optimal Fiber (OFL) and Tendon Slack Length (TSL) have been identified as the two most...
master thesis 2019
Searched for: subject%3A%22Upper%255C%2Blimb%22
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