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Nieuwenhuis, Jelte (author)
master thesis 2023
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van Veggel, Stein (author)
In the field of soft robotics, rigid joints and links are replaced by soft, deformable elements, This causes soft continuum robot arms to excel in unpredictable environments, but to face challenges during control and shape reconstruction. The sensing ability present in octopus suckers provides inspiration for solutions. Octopuses employ their...
master thesis 2023
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Pool, Lotte (author)
Brachytherapy is a type of internal radiation therapy that is used to treat cervical cancer. It involves the application of a radioactive source in close proximity to the tumour. This can be done either by directly inserting the source into (or close to) the tumour using interstitial hollow needles, or by loading the source into an intracavitary...
master thesis 2023
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Sekar, Anand (author)
Colonoscopy is a widely used endoscopic procedure to diagnose colorectal cancer (CRC) which is considered the fourth most common cancer in the US and the second most common cancer in Europe. Colonoscope, used in colonoscopy, consists of a thin flexible hollow tube that is inserted into the rectum of a person and propagated through the entire...
master thesis 2023
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Tuijp, Jeroen (author)
Endoscopic instruments are integral components of minimally invasive procedures, widely used for diagnoses and treatment of diseases. When navigating the endoscope, it should experience a minimum of friction, while an increase in friction is beneficial for performing the medical procedure. Friction can be reduced by squeeze film levitation,...
master thesis 2023
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Lucas, Valentin (author)
Retinal detachment occurs when liquid slips behind the retina and does not allow the latter to lay flat on the posterior region of the eye. It alters the vision of the patient, hence requiring surgery to be corrected. In some cases, retinal detachment can occur after the retina has been treated for other pathologies. <br/>Indeed, more than 20%...
master thesis 2022
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Kaptijn, Guy (author)
Spinal fusion surgery is applied, amongst other reasons, to correct unwanted curves in a spine hampered by scoliosis. During spinal fusion surgery, holes in the vertebra must be drilled, after which pedicle screws are placed. Traditional drilling only allows for the formation of straight holes. Ill-placed trajectories cannot be course-corrected,...
master thesis 2022
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Müller, Rob (author)
Abstract—Spinal fusion surgery is an operation in which two or more adjacent vertebrae are rigidly connected, with the goal to remedy spinal instability, deformation of the vertebrae, or a herniated intervertebral disc. Vertebrae are conventionally fixated by means of pedicle screws, the downsides of which are accidental cortical wall breaches...
master thesis 2022
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Van Schoor, Steijn (author)
Minimally invasive surgery has some major benefits over traditional open surgery for the patient, but makes surgery more complex for the surgeon. Articulating instruments can regain some of the manoeuvrability that is lost by using a small incision. However, in endoscopic neurosurgery such articulating devices do currently not exist, due to...
master thesis 2021
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Vasileiou, Christos (author)
Tendon-driven soft exosuits have gained much attention in recent years due to their ability to support people with mobility problems during daily life activities. A task that is particularly assisted by such robotic systems, due to its challenging nature, is stair climbing. However, assisting foot clearance during the swing phase of stair...
master thesis 2021
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Waal, Mees (author)
Cable Driven Parallel Robots, or CDPRs, might provide art historians and curators with an improved automated way of scanning 3D art objects. This application requires CDPRs to rotate around a 3D object with large panning and tilting, while avoiding collisions. While no designs exist for this purpose, this article investigates and proposes new...
master thesis 2021
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Overdevest, Joram (author)
This thesis contains two contributions to the stabilization of visually guided robotic lampreys: the head stabilization method and the head-led target tracking design. Both approach the problem that camera inputs, attached to the head segment, are disturbed due to the participation of the head in the locomotion gait of the robot. Head...
master thesis 2021
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Staats, Laurens (author)
Lateral torsional buckling (LTB) of I-beams is an established buckling phenomenon in civil and structural engineering known for causing structural failures. However when a buckling instability is present the structure contains a form of negative stiffness. Due to the observed tendency of I-beams subject to LTB to twist about their longitudinal...
master thesis 2021
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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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de Kuiper, Mike (author)
Background: Colonoscopy is a successful screening method to prevent colorectal cancer (CRC). Biopsies are performed from suspicious tissue spots during the colonoscopic procedure to find cancerous polyps in an early stage of the disease. However, taking multiple biopsies is rather time-consuming and requires many repetitious actions from the...
master thesis 2021
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Kooiman, Hugo (author)
This report describes the design of a wire rope based grasper for a tissue transport mechanism based on friction including means for operation. The previous transport mechanism design had no mechanism to transfer tissue into the lumen to be transported. To create the grasper, the wire ropes were plastically deformed to bend outward, creating the...
master thesis 2021
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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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Helwig, Roemer (author)
Falling is a significant problem for older adults. It can cause severe injury and even death. Furthermore, the fear of falling has a significant influence on the life of the elderly, and therefore they reduce their physical activity. Two new balance assistive devices are being developed to reduce the risk of falling. Both devices use a control...
master thesis 2020
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d'Hont, Sander (author)
Introduction: When navigating through tight and delicate environments, steerable tools are highly desired. Follow-the-leader locomotion, as in the biological snake, is a solution that is obtained with shape memory control. The often used electric equipment to control the shape makes the current state-of-the-art of snake-like robots too complex....
master thesis 2019
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Sendrowicz, Alexander (author)
During endonasal pituitary surgery - an approach of skull base surgery - long slender instruments are inserted through the nose of the patient, in order to remove a pituitary lesion. One of the instruments which is repeatedly used is the surgical punch, which is able to remove pieces of bone in order to create access to the lesion. The drawback...
master thesis 2018
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