Searched for: subject:"surgery"
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van Zaanen, Pam (author)
In the history of medicine and surgery, a slow transition is made from open surgery to minimally invasive surgery. Nowadays, natural orifice transluminal endoscopic surgery (NOTES) is investigated and tested. A NOTES procedure includes flexible instruments, which are inserted through natural orifices such as the mouth, nose, anus or vagina. The...
master thesis 2021
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Lether, Remie (author)
Minimally Invasive Surgery (MIS) has made tremendous impact on hospitals worldwide. Introduced as a patient friendly alternative to open surgery by significantly reducing incisions size, benefits such as faster patient recovery time, and less pain for patients, are achieved. However, in MIS, rigid instrument shafts can impair surgeons’ dexterity...
master thesis 2021
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Joosen, Max (author)
Sentinel lymph node biopsy (SLNB) is a procedure that is used to determine the stage of disease of melanoma patients and determine further treatment. However, the morbidities accompanied with this procedure are not negligible (e.g., wound infection, lymphoedema and seroma). With the goal reduce the incidence of morbidities, this thesis...
master thesis 2021
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van Hartingsveldt, Tessa (author)
During the first COVID-19 wave in the Netherlands, hospitals had to scale down their elective care all over the hospital to make room for COVID-19 patients. Even the Operating Room (OR) reduced their surgeries to acute care. It is, however, hard to define how much the OR should downscale. Also, there are no national plans on how hospitals should...
master thesis 2021
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Scheepens, K.M.J. (author)
After surgery, 15% of patients experience problems of excessive scarring, causing disfiguring and impaired function. An incision placed in the wrong direction causes unnecessary skin tension on the wound, pulling the wound edges apart. In order to close the wound, increased collagen disposition is needed. Currently, skin tension lines are used...
master thesis 2021
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Losch, M.S. (author), Swamy, A. (author), Elmi-Terander, Adrian (author), Edström, Erik (author), Hendriks, B.H.W. (author), Dankelman, J. (author)
Background: The increased popularity of minimally invasive spinal surgery calls for a revision of guidance techniques to prevent injuries of nearby neural and vascular structures. Lipid content has previously been proposed as a distinguishing criterion for different bone tissues to provide guidance along the interface of cancellous and...
journal article 2021
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Minnaard, Jeffrey (author), Kleipool, Roeland P. (author), Baars, Wim (author), Dankelman, J. (author), Stufkens, Sjoerd (author), Horeman, T. (author)
Aims: Resection of bone is performed in over 75% of all orthopaedic procedures and the electrically powered oscillating saw is commonly used to cut bone. Drawbacks are relatively large incisions and tissue damage due to overshooting often occur. Therefore, the goal of this study is to develop an improved bone-cutting system that has minimally...
journal article 2021
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Hiemstra, Olivier (author)
In recent years, patient specific instrumentation (PSI) has shown to be a promising application of 3D printing in orthopedic surgery. By aiding the surgeon with accurate placement of instruments such as saws or drills, surgeries can be performed faster, and require less surgeon experience. While most of these devices interface directly with the...
master thesis 2020
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de Haes, Philip (author)
A new radical design approach arose from the need to develop a bipolar electrosurgical instrument that is modular and cleanable, thus reusable and therefore suitable for low- and middle-income countries (LMICs). Advanced Bipolar Vessel Sealer (BVS) instruments that are currently on the market cannot be cleaned or maintained well and are...
master thesis 2020
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Weber, Maaike (author)
Objective: To develop a steerable neuroendoscopic instrument (SNI) based on user requirements found by several means of user research, and to evaluate this instrument on usability and safety. Only 5% of the potential intraventricular neuroendoscopy (INE) cases are currently treated with endoscopy. For the other 95%, an endoscopic approach is...
master thesis 2020
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Luck, Zoe (author)
<b>Noise in orthopedic operating theaters The medical staff working in orthopedic operating theaters are often exposed to significant noise generated by many simultaneous sound events (e.g. powered tools, alarms) that pose a risk to their health and well-being. This thesis focuses on their health behaviors associated with...
master thesis 2020
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Stolk, Maarten (author)
During a vitrectomy procedure vitreous is removed from the eye with a vitreous cutter, called a vitrectome. This instrument is comprised of two needles that move to cut the vitreous into small pieces before aspirating them. Vitreous cutters are complex instruments that are light and small in size to increase their accuracy. Because of their...
master thesis 2020
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Ribbers, Tamara (author)
A problem at the VUmc hospital in Amsterdam is that some patients become unrecognizable after the surgery. It is hard for surgeons to explain during the consultation how and how much the patients will change due to the surgery. Partly, because the surgeons cannot predict if the patient will become unrecognizable. Therefore, they tell them that...
master thesis 2020
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Sabelis, J.F. (author)
A chin deformity does not rarely accompany dentofacial deformities. A correction of the chin (genioplasty) is sometimes indicated in addition to orthognathic surgery. Computer-assisted surgery allows virtual planning in...
master thesis 2020
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Osman, Karim (author)
One of the main elements for creating an optimal operating room schedule is an accurate surgery duration estimation. Currently, this estimation is only done preoperatively. However, multiple factors during the surgery itself could influence the duration, for example bleeding. Literature showed the possibility of intraoperatively estimating a...
master thesis 2020
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de Ruiter, Bram (author)
The shift from open surgery with one large incision to less invasive techniques with multiple small incisions brings benefits such as less trauma, less scar formation and a faster recovery for the patient. However, in minimally invasive surgery (MIS), surgeons struggle with basic tasks such as applying sutures and tying nots. Clip appliers have...
master thesis 2020
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Groeneveld, B.S. (author)
For patients that undergo a total hip replacement (Total Hip Arthroplasty, THA), tailored communication through printed or digital information channels may improve the patient experience. This PhD project explored how a segmentation of the Total Joint Arthroplasty (TJA, both knee and hip surgery) patient population can be used to design tailored...
doctoral thesis 2020
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Bian, Yuqi (author)
Communication plays an essential role during open heart surgery. In order to improve the safety and the efficiency in the Coronary Artery Bypass Grafting (CABG) surgery. This research indicated three projects focusing on solutions of gathering and integrating medical data generated by the different machines and team members. Based on the...
master thesis 2020
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Oosting, R.M. (author), Ouweltjes, Koen (author), Hoeboer, M.D.B. (author), Hesselink, Larissa (author), Madete, J.K. (author), Diehl, J.C. (author), Groen, R. S. (author), Wauben, L.S.G.L. (author), Dankelman, J. (author)
Objective To comply to the large global need for surgery, surgical equipment that fits the challenging environment in low- and middle-income countries (LMICs) should be designed. The aim of this study is to present a context-specific design of an electrosurgical unit (ESU) and a monopolar handheld to improve global access to surgery. Scope...
journal article 2020
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Sakes, A. (author), van de Steeg, Ivo A. (author), de Kater, E.P. (author), Posthoorn, P. (author), Scali, M. (author), Breedveld, P. (author)
Currently existing tubular transportation systems for the extraction of large tissue masses during Minimal Invasive Surgery (MIS) are subjected to a large amount of operating limitations. In this study, a novel transportation mechanism (patented) was developed inspired by the egg-laying structure of wasps. The developed mechanism consists of...
journal article 2020
Searched for: subject:"surgery"
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