Searched for: department%3A%22Biomechanical%255C%252BEngineering%22
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Horeman, T. (author), Rodrigues, S.P. (author), Jansen, F.W. (author), Dankelman, J. (author), Van den Dobbelsteen, J.J. (author)
Background - To improve endoscopic surgical skills, an increasing number of surgical residents practice on box or virtual-reality (VR) trainers. Current training is mainly focused on hand–eye coordination. Training methods that focus on applying the right amount of force are not yet available. Methods - The aim of this project is to develop a...
journal article 2010
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Al Zaher, R. (author)
This thesis work analyses, models and presents a new frame design for the Csiro electric drive for solar cars. The main objective is to determine whether Csiro motor (CM) is more efficient than the Biel motor (BM). To do that, performance tests were conducted and compared with both drives. Results showed that the CM is more efficient at low...
master thesis 2010
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Mulder, M. (author), Abbink, D. (author), Van Paassen, R. (author), Mulder, M. (author), Van der Helm, F. (author), Boer, E.R. (author), Takada, Y. (author)
A target-travel-path generating circuit calculates a target travel path along which the controlled object can travel in the future from the current controlled object position, an ideal-control-signal calculating circuit calculates a control profile S to travel along the target travel path P, and a difference calculating circuit calculates a...
patent 2010
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Abbink, D.A. (author), Mulder, M. (author)
book chapter 2010
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Bolsterlee, B. (author)
The Dutch Shoulder and Elbow Model (DSEM) is a musculoskeletal model of the shoulder that can be used to predict internal shoulder loading (muscle forces, joint reaction forces, etc.). The DSEM uses an inverse optimisation method to predict muscle forces from net joint moments. In this study two new modes are presented that constrain the inverse...
master thesis 2010
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Tukker, A.A. (author)
Indirect Heat Induced Attachment and Detachment (HIAD) is a promising concept for gripping delicate tissues in ophthalmic surgery. However, the optimal settings of attaching to and detaching from delicate tissues are unknown. This study presents the effects of the instrument heating properties and initial contact force on the adhesion force,...
master thesis 2010
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Vermeulen, M. (author), Wisse, M. (author)
We present a design for a manipulator that is intrinsically mechanically safe, i.e. it can not cause pain (let alone damage) to a human being even if the control system has a failure. Based on the pressure pain thresholds for human skin, we derive a pinching safety constraint that limits the actuator torque, and an impact safety constraint that...
journal article 2010
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Prange, G.B. (author), Jannink, M.J.A. (author), Stienen, A.H.A. (author), Van der Kooij, H. (author), IJzerman, M.J. (author), Hermens, H.J. (author)
Background: In many stroke patients arm function is limited, which can be related to an abnormal coupling between shoulder and elbow joints. The extent to which this can be translated to activities of daily life (ADL), in terms of muscle activation during ADL-like movements, is rather unknown. Therefore, the present study examined the occurrence...
journal article 2010
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Ravensbergen, E.J. (author)
Sometimes children are born with (part of) an arm missing. Next to congenital loss, children or adults can loose their arm due to an accident or illness. The missing arm can be replaced with a prosthesis, connected to the arm remnant by a socket. Existing sockets tend to have a hot and humid climate and some sockets are difficult to don and doff...
master thesis 2010
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Collins, S.H. (author), Kuo, A.D. (author)
Background: Humans normally dissipate significant energy during walking, largely at the transitions between steps. The ankle then acts to restore energy during push-off, which may be the reason that ankle impairment nearly always leads to poorer walking economy. The replacement of lost energy is necessary for steady gait, in which mechanical...
journal article 2010
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Van der Meer, J.N. (author), Schouten, A.C. (author), Bour, L.J. (author), De Vlugt, E. (author), Van Rootselaar, A.F. (author), Van der Helm, F.C.T. (author), Tijssen, M.A.J. (author)
In dystonia, both sensory malfunctioning and an abnormal intermuscular low-frequency drive of 3–7 Hz have been found, although cause and eVect are unknown. It is hypothesized that sensory processing is primarily disturbed and induces this drive. Accordingly, experimenter-controlled sensory input should be able to inXuence the frequency of the...
journal article 2010
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Nai, T.Y. (author)
Meniscectomy is a medical procedure where ruptured meniscal tissue is removed within the knee joint. The con- ventional cutters fail to reach the entire meniscus. Therefore, the focus of this study is to create a cutter with a steerable tip, which allows sideway steering to increase the reacha- bility within the knee joint. Additionally, this...
master thesis 2010
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Horeman, T. (author), Jansen, F.W. (author), Dankelman, J. (author)
Background - The risk of obtaining a postsurgical infection depends highly on the air quality surrounding the exposed tissue, surgical instruments, and materials. Many isolators for open surgery have been invented to create a contained sterile volume around the exposed tissue. With the use of an isolator, a surgical procedure can be performed...
journal article 2010
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Guedon, A.C.P. (author)
Blood flow and the associated shear forces have important biological effects on blood vessels. It has been suggested that blood flow abnormalities play a part in the development and the rupture of a deformed part of the wall of a brain artery, which is called an intracranial aneurysm, and thus in cerebral hemorrhages. Knowledge about the blood...
master thesis 2010
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Bouarfa, L. (author), Jonker, P.P. (author), Dankelman, J. (author)
Recognizing and understanding surgical high-level tasks from sensor readings is important for surgical workflow analysis. Surgical high-level task recognition is also a challenging task in ubiquitous computing because of the inherent uncertainty of sensor data and the complexity of the operating room environment. In this paper, we present a...
journal article 2010
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Balderas Silva, D.C. (author)
This study describes a method for the identification of Time-Varying joint admittance. The method transforms the time signals into a time--frequency representation using the wavelet transform, from which the Time--Varying frequency response function (TV--FRF) is estimated, and the model parameters are derived. Analysis of the performance of the...
master thesis 2009
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Meskers, C.G.M. (author), Schouten, A.C. (author), Rich, M.M.L. (author), De Groot, J.H. (author), Schuurmans, J. (author), Arendzen, J.H. (author)
The long latency M2 electromyographic response of a suddenly stretched active muscle is stretch duration dependent of which the nature is unclear. We investigated the inXuence of the group II aVerent blocker tizanidine on M2 response characteristics of the m. Xexor carpi radialis (FCR). M2 response magnitude and eliciting probability in a group...
journal article 2009
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Caarls, J. (author), Jonker, P. (author), Kolstee, Y. (author), Rotteveel, J. (author), Van Eck, W. (author)
This paper describes the design of an optical see-through head-mounted display (HMD) system for Augmented Reality (AR). Our goals were to make virtual objects “perfectly” indistinguishable from real objects, wherever the user roams, and to find out to which extent imperfections are hindering applications in art and design. For AR, fast and...
journal article 2009
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Chmarra, M.K. (author), Klein, S. (author), De Winter, J.C.F. (author), Jansen, F.W. (author), Dankelman, J. (author)
Background - From the clinical point of view, it is important to recognize residents’ level of expertise with regard to basic psychomotor skills. For that reason, surgeons and surgical organizations (e.g., Acreditation Council for Graduate Medical Education, ACGME) are calling for assessment tools that credential residents as technically...
journal article 2009
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Van der Wees, M. (author)
The drinking water treatment industry is becoming increasingly centralized and automated. This requires a different operator training approach then the traditional on the job training. To address this requirement a drinking water treatment plant simulator was developed. A major advantage of such a simulator might be that the normally very slow...
master thesis 2009
Searched for: department%3A%22Biomechanical%255C%252BEngineering%22
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