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de Vries, Ellen (author)Suction grippers have the advantage to handle many different types and sizes of items, without being restricted by the dimensions of clamps to enclose an object and to handle objects more delicately. <br/>However, the challenge of attaching these grippers to irregularly-shaped and rough surfaces remains a persistent issue. Despite advancements...master thesis 2023
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- van Loo, Lars (author) master thesis 2023
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van der Staaij, Jasper (author)An intracranial aneurysm is a bulge in the cerebral vasculature. The rupture of an aneurysm results in a brain bleed. As a consequence, most patients become severely handicapped or may even die. Preventive treatment with endovascular coiling is controversial due to the high risk of complications. These complications are partly caused by the...master thesis 2022
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Verberne, Yinte (author)The surgical procedure of tissue extraction from the human body for precautionary or curative measures is common in many medical fields. Currently, aspiration catheters are the golden standard, enabling removal by means of a suction force. By Sakes et al., an alternative mechanism is proposed, transporting tissue based on friction, inspired by...master thesis 2022
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Greidanus, Max (author)As their name suggests, variable stiffness mechanisms are mechanical systems that are capable of altering their stiffness. They can do this in order to adapt their interaction with the environment. One of the applications where variable stiffness can offer advantages is in healthcare. Specifically in minimally invasive surgical procedures, such...master thesis 2021
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Jamin, Tom (author)Background<br/>Elephants that wander onto the fields of farmers in Myanmar are being shot with makeshift guns. By doing this, the farmers are able to make these animals leave the area without killing them. This results in elephants walking around with bullets inside their body and wounds that need to be looked after. Traditional methods for...master thesis 2021
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de Vries, Jelle (author)Mobile soft robots show great potential for exploration of unknown and hard to navigate environments. Sadly, most of these robots are currently being held back by their power sources and control systems. These components, which are usually quite heavy and bulky, need to be integrated before mobile soft robots can cut their tethers and explore...master thesis 2021
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van Gelder, Sebastiaan (author)Background: Currently colonoscopies are difficult procedures to complete without complications. Due to the limitations in the state of the art flexible colonoscopes specialized maneuvers are required in order to allow the colonoscope to travel into the colon and reduce colon stretching. This thesis proposes a novel self-propelling mechanism...master thesis 2021
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Kortman, Vera (author)Gripping slippery, compliant, and irregular tissues during MIS is often challenging using a conventional gripper. A force grip has to compensate for the low friction coefficient between the gripper’s jaws and tissue surface. This study focuses on the development of a suction gripper as an alternative for the well-known tissue gripper. Suction...master thesis 2021
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Copier, Rick (author)Objective: this paper aims to evaluate the adhesive and frictional properties of the keratinised epithelium on the adhesive pads of tree frogs. Modeling methods: two modeling methods have been developed. One of these methods involves the implementation of discrete fibres in a relatively compliant material matrix while the other method involves...master thesis 2021
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Treep, Sanne (author)Background: The goal of minimally invasive surgery (MIS) is to perform surgery by minimal damaging the body. Compared to traditional open surgery MIS results in faster recovery and lower mortality, and is therefore the preferred method for performing a biopsy. Natural Orifice Transluminal Endoscopic Surgery (NOTES) is a type of MIS where an...master thesis 2021
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Verheijen, Daan (author)When inserting a flexible endoscope into a human colon during colonoscopy, limitations in the endoscope design can cause medical implications such as excessive colon stretching and buckling of the endoscope shaft. This thesis proposes a novel propulsion mechanism design for flexible endoscopes which changes the method of insertion as a way to...master thesis 2021
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Doelman, Michiel (author)Background: Accessing targets through complex trajectories with multiple curves in series, remains challenging today in many application fields, like surgery, the Fukushima disaster, maintenance of complex tube networks, mining and space operations. Current steerable devices require control of an extensive amount of segments, while moving as a...master thesis 2021
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Tonnelé, Matthieu (author)Although traditional open surgery is still a very common and popular medical procedure, the advantages Minimally Invasive Surgery can bring are inducing a shift towards these types of operations where possible. This creates a need for new and dedicated equipment, such as endoscopes (for vision), morcellators (for tissue excision), catheters (for...master thesis 2020
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de Kater, Esther (author)Background: During minimally invasive procedures, tissue damage can be limited by using smaller incisions and by using naturally occurring body orifices to reach the intervention site. During these procedures the need can arise to transport tissue. Think of a biopsy or the removal of polyps. This calls for a tool that can transport tissue and is...master thesis 2020
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Kuipéri, Josette (author)Background: When a suspicious lesion is detected, a thorough examination is essential for the diagnostics of the lesion. Information about the nature and character of the lesion is crucial for the determination of the disease and an appropriate corresponding treatment plan. Taking a biopsy plays an important role in this examination. A biopsy is...master thesis 2018
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- Nicolai, T.E. (author) master thesis 2017
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Snaar, K.A. (author)Background: Ductoscopy is a minimally invasive procedure, using a sub millimeter fiber optical camera, to explore the mammary ductal epithelium for Pathological Nipple Discharge (serous fluid discharged from the milk duct) and breast cancer, detecting lesions up to eight years before other modalities. Although ductoscopy can revolutionize breast...master thesis 2017
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Hovland, K. (author)Current electrosurgical instruments often lack the capability to be optimally customized to a certain procedure/patient. It simply wouldn’t be feasible to produce ten or hundred different configurations in terms of dimensions and geometry of the same device. Most instruments come in one configuration. This study aims to increase the flexibility...master thesis 2016
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Van der Wiel, M. (author)Background: Chronic Total Occlusions (CTOs) are the most challenging lesions of Percutaneous Coronary Intervention (PCI). The most common failure mode is the inability to cross the lesion with a guidewire. Crossing is complicated by the lack of guidewire stiffness and the high penetration force of the fibrous proximal cap of the CTO, often...master thesis 2015