Searched for: contributor%3A%22Dankelman%2C+J.+%28mentor%29%22
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Mulders, N.M. (author)
Windsurfers currently do not wear neoprene gloves when sailing in cold temperatures, as discomfort rapidly develops in the forearms when doing so. Lack of good protection against low temperatures means the hands get painfully cold and numb, limiting sailing time and pleasure. ElectroMyoGraphy (EMG) measurements were done on four forearm muscles...
master thesis 2014
document
Hoogwout, M.R. (author)
Sit-snowboards allow a person with the inability to actively use his/her legs to snowboard while sitting. However, existing prototypes do not allow using a chairlift. The goal of this study was to modify a prototype sit-snowboard, MINI, to add chairlift accessibility. MINI has a seat construction and two handlebars which allow the user to steer...
master thesis 2014
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Maagdenberg, F.J.M. (author)
Diffuse reflectance spectroscopy (DRS) allows spectral tissue sensing through optical fibers at the tip of a needle, endoscope, or other medical device. A so-called photonic tool could be applicable in a variety of application areas to aid in diagnostic decisions or to support image-guided procedures. The use of light in combination with medical...
master thesis 2014
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De Lat, B. (author)
Background: An ablation catheter with integrated high-frequency single element ultrasound transducers has been developed by Philips Research, which makes it possible to assess tissue-depth and lesion formation in real-time. The interpretation of the acquired ultrasound M-mode images is difficult due to a combination of cardiac motion and motion...
master thesis 2014
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De Glopper, M. (author)
Aseptic loosening is the major failure mode for hip prostheses. Currently, loosened prostheses are revised during open surgery. Because of a high complication rate, this demanding procedure cannot be performed in patients with a poor general health. We are developing an alternative minimally invasive refixation procedure that leaves the...
master thesis 2014
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Sjak-Shie, E.E. (author)
Abstract - When surgically drilling blind holes in bone using a Water Jet (WJ), control over the resulting depth is a challenging issue of paramount concern. This thesis was part of a project aimed at replacing the awl and mallet technique used in traditional microfracture procedures with an arthroscopic high-pressure WJ instrument is capable of...
master thesis 2013
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Hogervorst, J.C. (author)
Abstract—Percutaneous needle insertion is a minimally invasive technique, in which intervention effectiveness depends on needle placement accuracy. Targeting specific areas is difficult as needle trajectory is influenced by the highly variable and unpredictable nature of soft tissue. Furthermore the physician receives very limited information,...
master thesis 2013
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Sun, S. (author)
The goal of this thesis is to design a hybrid trainer that can quantitatively measure the LESS performance while investigating the difference between LESS and CLS, finally propose a novel objective assessment tools for future research. A force platform is developed, which measures tissue manipulation force in the range of 0-20N with an accuracy...
master thesis 2013
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Nanut, I. (author)
Percutaneous procedures are minimally invasive medical procedures that use needles to locally operate on a target in a patient’s body. The precise placement of the needle in the body is a challenging task that can affect the quality and efficiency of these procedures. Needle insertion accuracy may be improved by robot-assisted control of...
master thesis 2013
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Wulms, P.H.L.M. (author)
To improve arthroscopic skills, orthopaedic residents train on medical simulators and cadaveric training courses. Some medical simulators provide feedback while cadaveric specimen offer the most realistic training environments. Providing objective feedback while training on cadaveric specimen will be an major improvement to the cadaveric...
master thesis 2013
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Oortwijn, P.T. (author)
Vibration in moving mechanisms and manipulators is almost always present due to manufacturing tolerances, assembly errors and non-uniform density of materials. Small errors in parameters such as mass and length may result in a non-balanced mechanism producing shaking forces. Normally a mechanism would be balanced using a trial and error method,...
master thesis 2013
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Goos, T.G. (author)
Very preterm infants need support to survive. This support almost always incorporates respiratory support in the form of pressure and additional oxygen. Since late 2010 multiple resuscitation councils have advised oxygen saturation targets after birth. An observational study was conducted to observe to which extent the European Resuscitation...
master thesis 2013
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Sluiman, J.V. (author)
Internationally the health care system is under pressure and research aims to give insights in hospitals’ processes to identify areas where ef?ciency gains can be achieved. At the Rotterdam Eye Hospital a case study is conducted to track the location of patients throughout their hospital visit, collecting data about patients’ processes and...
master thesis 2013
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Van Lith, J.Y. (author)
Endovascular interventions are a type of minimally invasive surgery used to diagnose and treat vascular conditions. Long, thin and flexible medical devices like catheters are percutaneously inserted into the blood vessels. Time-action analysis has shown that the navigation of the medical devices from the access to the destination site is...
master thesis 2012
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Cuschieri, M. (author)
Nowadays, drug eluting stents (DES) are the treatment of choice for de novo atherosclerotic lesions. Novel DES are shifting to polymer-free (PF) drug delivery in order to avoid the problem of late stent thrombosis associated with long term polymer presence in the vessel lumen. The scope of this study was to assess the potential of a microporous...
master thesis 2012
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Bakker, J.P. (author)
The current method of minimally invasive harvesting the sural nerve in infants takes too much time. To reduce harvesting time a new Minimally Invasive Nerve Dissector (MIND) was designed. The MIND reduces instrument change by combining the two most used functions of the currently used instruments: firstly, the movement of the graft with the hook...
master thesis 2012
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Van Eig, E.R. (author)
The currently performed corrective distal radius osteotomy procedures show several complications, such as tendon irritation and tendon rupture, due to friction with implemented fixation implants. This study focused on the development of a new fixation implant for positioning and fixation of bone segments for corrective osteotomy, that ensures a...
master thesis 2012
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Krijger, T. (author)
Endo-Nasal Skull-Base Surgery (ENSBS) is preformed at the area around the base of the skull and has great advantages compared to Open Skull Base Surgery (OSBS). Due to limitations in surgical equipment, ENSBS is not always a viable option. This research attempts to address these limitations through the development of a highly manoeuvrable,...
master thesis 2012
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Gahler, M.C. (author)
Accurate positioning of the needle tip during insertion is essential to ensure a maximum effect of the treatment. Target error is a problem and a lot research fields aim to improve needle insertions. The possibility to measure cutting force and stiffness force separately from friction forces supports the development of new types of needles,...
master thesis 2012
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Ambrosi, M. (author)
All around the world countries’ populations are aging and with this increase of expected lifetimes there is additional need for medical interventions such as hip replacements. With many people outliving the lifetime of these implanted parts, revisions are sometimes necessary. In some hip prostheses, layers of fibrous tissue can grow and decrease...
master thesis 2012
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