Searched for:
(1 - 19 of 19)
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Hardon, S.F. (author), van Kasteren, R. J. (author), Dankelman, J. (author), Bonjer, H. Jaap (author), Tuynman, J. B. (author), Horeman, T. (author)
Background: Transanal total mesorectal excision (TaTME) is associated with a relatively long learning curve. Force, motion, and time parameters are increasingly used for objective assessment of skills to enhance laparoscopic training efficacy. The aim of this study was to identify relevant metrics for accurate skill assessment in more complex...
journal article 2019
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Hardon, S.F. (author), Schilder, F. (author), Bonjer, H. Jaap (author), Dankelman, J. (author), Horeman, T. (author)
Background: Ever since the introduction of laparoscopic surgery, researchers have been trying to add steerability to instruments to allow the surgeon to operate with better reachability and less tissue interaction force. Traditional solutions to introduce this often use a combination of springs, cables, pulleys, and guiding structures,...
journal article 2019
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Hilgersom, Nick F.J. (author), Horeman, T. (author), Bleys, Ronald L.A.W. (author), Eygendaal, Denise (author), van den Bekerom, Michel P.J. (author), Tuijthof, G.J.M. (author)
Background: Elbow arthroscopy is a difficult surgical technique. Objective metrics can be used to improve safe and effective training in elbow arthroscopy. Force exerted on the elbow tissue during arthroscopy can be a measure of safe tissue manipulation. The purpose of this study was to determine the force magnitude and force direction used...
journal article 2018
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Horeman, T. (author), Buiter, E.C. (author), Pouran, B. (author), Stijntjes, M. (author), Dankelman, J. (author), Tuijthof, G.J.M. (author)
This experimental work focused on the sensor selection for the development of a needle-like instrument to treat small isolated cartilage defects with hydrogels. The aim was to identify the most accurate and sensitive imaging method to determine the location and size of defects compared to a gold standard (µCT). Only intravascular ultrasound...
journal article 2018
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Hardon, S.F. (author), Horeman, T. (author), Bonjer, H. Jaap (author), Meijerink, W. J H Jeroen (author)
Background: Within minimally invasive surgery (MIS), structural implementation of courses and structured assessment of skills are challenged by availability of trainers, time, and money. We aimed to establish and validate an objective measurement tool for preclinical skills acquisition in a basic laparoscopic at-home training program. Methods...
journal article 2018
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Horeman, T. (author), Kment, Christoph (author), Kerkhoffs, Gino M.M.J. (author), Tuijthof, G.J.M. (author)
The goal of this study was to determine the preferred handle design for two degrees of freedom steerable arthroscopic cutter by performing a two-step development approach. The expected usefulness and usability of control components of three entirely different handles were defined by an on-line survey with 101 students and the actual control...
journal article 2017
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Smit, Daan (author), Spruit, Edward (author), Dankelman, J. (author), Tuijthof, G.J.M. (author), Hamming, J (author), Horeman, T. (author)
Background Visual force feedback allows trainees to learn laparoscopic tissue manipulation skills. The aim of this experimental study was to find the most efficient visual force feedback method to acquire these skills. Retention and transfer validity to an untrained task were assessed. Methods Medical students without prior experience in...
journal article 2017
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Rodrigues, S.P. (author), Horeman, T. (author), Blomjous, M.S.H. (author), Hiemstra, E. (author), Van den Dobbelsteen, J.J. (author), Jansen, F.W. (author)
Background The aim of this study was to examine the influence of training under direct vision prior to training with indirect vision on the learning curve of the laparoscopic suture task. Methods Novices were randomized in two groups. Group 1 performed three suturing tasks in a transparent laparoscopic box trainer under direct vision followed by...
journal article 2015
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Tuijthof, G.J.M. (author), Horeman, T. (author)
Surgical device, in particular for minimally invasive surgery, provided with a shaft having a distal end to which a surgical instrument is mounted or mountable and a proximal end equipped for handling the instrument, wherein the shaft is hollow and the surgical instrument is mounted or mountable on inserts that are longitudinally movable in the...
patent 2014
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Horeman, T. (author)
In laparoscopic surgery, special instruments with long and slender shafts are inserted through small incisions in the abdominal wall. A laparoscope is used for a clear vision inside the inflated abdominal cavity while laparoscopic graspers and cutters are used for manipulation of tissue. The use of long instruments makes it difficult to “feel”...
doctoral thesis 2014
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Horeman, T. (author), Meijer, E.J. (author), Harlaar, J.J. (author), Lange, J.F. (author), Van den Dobbelsteen, J.J. (author), Dankelman, J. (author)
The tension in a suture is an important factor in the process of wound healing. If there is too much tension in the suture, the blood flow is restricted and necrosis can occur. If the tension is too low, the incision opens up and cannot heal properly. The purpose of this paper is to describe the design and evaluation of the Stitch Force (SF)...
journal article 2013
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Horeman, T. (author), Dankelman, J. (author), Jansen, F.W. (author), Van den Dobbelsteen, J.J. (author)
Box trainers equipped with sensors may help in acquiring objective information about a trainee's performance while performing training tasks with real instruments. The main aim of this study is to investigate the added value of force parameters with respect to commonly used motion and time parameters such as path length, motion volume, and task...
journal article 2013
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Sun, S. (author), Dankelman, J. (author), Horeman, T. (author)
In laparoendoscopic single-site surgery (LESS), only one single incision is used to introduce all instruments into the abdominal cavity. The introduction of multi-channel single-port devices enabled insertion of laparoscopic instruments and laparoscope through one single entry point instead of multiple entry points in conventional laparoscopic...
conference paper 2013
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Rodrigues, S.P. (author), Horeman, T. (author), Dankelman, J. (author), Van den Dobbelsteen, J.J. (author), Jansen, F.W. (author)
It is generally assumed that safety of tissue manipulations during (laparoscopic) surgery is related to the magnitude of force that is exerted on the tissue. To provide trainees with performance feedback about tissuehandling skills, it is essential to define objective criteria for judging the safety of applied forces. To be of clinical relevance...
journal article 2011
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Horeman, T. (author), Rodrigues, S.P. (author), Van den Dobbelsteen, J.J. (author), Jansen, F.W. (author), Dankelman, 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 focused mainly 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 2011
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Tuijthof, G.J.M. (author), Horeman, T. (author), Schafroth, M.U. (author), Blankevoort, L. (author), Kerkhoffs, G.M.M.J. (author)
Purpose To facilitate effective learning, feedback on performance during arthroscopic training is essential. Less attention has been paid to feedback on monitoring safe handling of delicate tissues such as meniscus. The goal is to measure in vitro probing forces of menisci and compare them with a theoretical maximum probing force (TMPF). Method...
journal article 2010
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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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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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Dankelman, J. (author), Horeman, T. (author)
The present invention relates to a surgical instrument for minimall-invasive surgery, comprising a handle, a shaft and an actuating part, characterised by a gastight cover surrounding the shaft, wherein the cover is provided with a coupler that has a feed- through opening with a loskable seal, through which feed- through opening, after the seal...
patent 2009
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