Searched for: author%3A%22Smit%2C+G.%22
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Zillen, Eva (author), van der Windt, B. (author), Vallery, H. (author), Smit, G. (author)
Background: Pneumatic actuators are widely used in applications like (medical) robots, or prostheses. Pneumatic actuators require a complex manufacturing process and are produced in standardized dimensions to reduce costs. Over the last decade 3D-printing has emerged as a cost-effective and efficient production method in medical applications....
journal article 2024
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Krinis, S.L.L. (author), Chadwell, Alix (author), Kenney, Laurence (author), Smit, G. (author)
Introduction<br/><br/>The Delft Self-Grasping Hand (SGH) is an adjustable passive hand prosthesis that relies on wrist flexion to adjust the aperture of its grasp. The mechanism requires engagement of the contralateral hand meaning that hand is not available for other tasks. A commercialised version of this prosthesis, known as the mHand Adapt,...
journal article 2024
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Vallery, H. (author), Lachmann, F. (author), van der Helm, S.G. (author), Pennycott, A. (author), Smit, G. (author)
Standing up using one leg is a challenging task for those with a transfemoral amputation, particularly for elderly users with a low activity level. Active prostheses are generally not accessible to this group and available passive prostheses do not support standing up. This article presents the design and evaluation of the “Energy Restoring...
journal article 2023
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Heeringa, W.M. (author), Della Santina, C. (author), Smit, G. (author)
Industrial automation calls for precise tasks with cycle times reduced to the minimum. At the same time, when handling delicate products such as fruits and vegetables, accelerations must be kept low to keep interaction forces under a certain threshold to avoid damage. This trade-off hinders the penetration of automation in many relevant...
conference paper 2023
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Drost, S.C. (author), Pustina, P. (author), Angelini, Franco (author), De Luca, Alessandro (author), Smit, G. (author), Della Santina, C. (author)
Performing precise, repetitive motions is essential in many robotic and automation systems. Iterative learning control (ILC) allows determining the necessary control command by using a very rough system model to speed up the process. Functional iterative learning control is a novel technique that promises to solve several limitations of classic...
conference paper 2023
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O’Brien, Lisa (author), Montesano, Elena (author), Chadwell, Alix (author), Kenney, Laurence (author), Smit, G. (author)
(1) Background: This study investigated the feasibility of conducting a two-week “real-world” trial of the Self Grasping Hand (SGH), a novel 3D printed passive adjustable prosthesis for hand absence; (2) Methods: Single-group pilot study of nine adults with trans-radial limb absence; five used body-powered split-hooks, and four had passive...
journal article 2022
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Culmone, C. (author), van Starkenburg, R.I.B. (author), Smit, G. (author), Breedveld, P. (author)
In laparoscopy, a small incision size improves the surgical outcome but increases at the same time the rigidity of the instrument, with consequent impairment of the surgeon’s maneuverability. Such reduction introduces new challenges, such as the loss of wrist articulation or the impossibility of overcoming obstacles. A possible approach is using...
journal article 2022
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Sinke, Maaike (author), Chadwell, Alix (author), Smit, G. (author)
Background: Research into prosthesis training and design puts a burden on the small population of people with upper-limb absence who can participate in these studies. One solution is to use a prosthetic hand simulator, which allows for attaching a hand prosthesis to an intact limb. However, whether the results of prosthesis simulator studies...
review 2022
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den Hartog, D.D.G. (author), Harlaar, J. (author), Smit, G. (author)
Stumbling during gait is commonly encountered in patients who suffer from mild to serious walking problems, e.g., after stroke, in osteoarthritis, or amputees using a lower leg prosthesis. Instead of self-reporting, an objective assessment of the number of stumbles in daily life would inform clinicians more accurately and enable the evaluation...
journal article 2021
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Culmone, C. (author), Lussenburg, K.M. (author), Alkemade, J.P.E. (author), Smit, G. (author), Sakes, A. (author), Breedveld, P. (author)
In the field of medical instruments, additive manufacturing allows for a drastic reduction in the number of components while improving the functionalities of the final design. In addition, modifications for users’ needs or specific procedures become possible by enabling the production of single customized items. In this work, we present the...
journal article 2021
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Chadwell, Alix (author), Chinn, Natalie (author), Kenney, Laurence (author), Karthaus, Zoë J. (author), Mos, Daniek (author), Smit, G. (author)
The Delft Self-Grasping Hand is an adjustable passive prosthesis operated using the concept of tenodesis (where opening and closing of the hand is mechanically linked to the flexion and extension of the wrist). As a purely mechanical device that does not require harnessing, the Self-Grasping Hand offers a promising alternative to current...
journal article 2021
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Cuellar Lopez, J.S. (author), Plettenburg, D.H. (author), Zadpoor, A.A. (author), Breedveld, P. (author), Smit, G. (author)
Various upper-limb prostheses have been designed for 3D printing but only a few of them are based on bio-inspired design principles and many anatomical details are not typically incorporated even though 3D printing offers advantages that facilitate the application of such design principles. We therefore aimed to apply a bio-inspired approach...
journal article 2021
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Ali, A. (author), Dodou, D. (author), Smit, G. (author), Rink, Ruben (author), Breedveld, P. (author)
Positioning and stabilizing a catheter at the required location inside a vessel or the heart is a complicated task in interventional cardiology. In this review we provide a structured classification of catheter stabilization mechanisms to systematically assess their challenges during cardiac interventions. Commercially available, patented,...
review 2021
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Dittli, Jan (author), Hofmann, Urs A.T. (author), Bützer, Tobias (author), Smit, G. (author), Lambercy, Olivier (author), Gassert, Roger (author)
Wearable robots assist individuals with sensorimotor impairment in daily life, or support industrial workers in physically demanding tasks. In such scenarios, low mass and compact design are crucial factors for device acceptance. Remote actuation systems (RAS) have emerged as a popular approach in wearable robots to reduce perceived weight...
journal article 2021
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Remmerswaal, Evan (author), Weygers, Ive (author), Smit, G. (author), Kok, M. (author)
We present a novel approach to estimate the relative sensor orientation from inertial sensors placed on connected body segments. Drift in the relative orientation estimates obtained by integrating the gyroscope measurements is corrected solely by incorporating common information in the inertial sensor measurements due to the connection of the...
conference paper 2021
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Smit, G. (author)
Background: Current body-powered hands have very low acceptance rates. They also require high activation forces. In the past, a high acceptance rate was reported for the then-available Hüfner hand, a hand which could be controlled by relatively low activation forces. Objective: The aim of this study was to measure and quantify the mechanical...
journal article 2021
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Vertongen, J. (author), Kamper, Derek G. (author), Smit, G. (author), Vallery, H. (author)
The large interest in robot hands and active hand prostheses has in recent years been joined by that in active hand orthoses. Despite the differences in intended uses, these three categories of artificial hand devices share key characteristics. Examination of the commonalities could stimulate future design. Thus, in this article, we undertook...
journal article 2020
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Culmone, C. (author), Smit, G. (author), Breedveld, P. (author)
Goal: Additive manufacturing, also known as 3D printing, has begun to play a significant role in the field of medical devices. This review aims to provide a comprehensive overview and classification of additively manufactured medical instruments for diagnostics and surgery by identifying medical and technical aspects. Methods: A scientific...
review 2019
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Henselmans, P.W.J. (author), Smit, G. (author), Breedveld, P. (author)
One of the most prominent drivers in the development of surgical procedures is the will to reduce their invasiveness, attested by minimally invasive surgery being the gold standards in many surgical procedures and natural orifices transluminal endoscopic surgery gaining acceptance. A logical next step in this pursuit is the introduction of...
journal article 2019
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Cuellar Lopez, J.S. (author), Smit, G. (author), Breedveld, P. (author), Zadpoor, A.A. (author), Plettenburg, D.H. (author)
In developing countries, the access of amputees to prosthetic devices is very limited. In a way to increase accessibility of prosthetic hands, we have recently developed a new approach for the design and 3D printing of non-assembly active hand prostheses using inexpensive 3D printers working on the basis of material extrusion technology. This...
journal article 2019
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