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Case-study of a user-driven prosthetic arm design: bionic hand versus customized body-powered technology in a highly demanding work environment

Published on Dec 1, 2018in Journal of Neuroengineering and Rehabilitation 3.58
· DOI :10.1186/s12984-017-0340-0
Wolf Schweitzer13
Estimated H-index: 13
(UZH: University of Zurich),
Michael J. Thali48
Estimated H-index: 48
(UZH: University of Zurich),
David Egger1
Estimated H-index: 1
Cite
Abstract
Prosthetic arm research predominantly focuses on “bionic” but not body-powered arms. However, any research orientation along user needs requires sufficiently precise workplace specifications and sufficiently hard testing. Forensic medicine is a demanding environment, also physically, also for non-disabled people, on several dimensions (e.g., distances, weights, size, temperature, time). As unilateral below elbow amputee user, the first author is in a unique position to provide direct comparison of a “bionic” myoelectric iLimb Revolution (Touch Bionics) and a customized body-powered arm which contains a number of new developments initiated or developed by the user: (1) quick lock steel wrist unit; (2) cable mount modification; (3) cast shape modeled shoulder anchor; (4) suspension with a soft double layer liner (Ohio Willowwood) and tube gauze (Molnlycke) combination. The iLimb is mounted on an epoxy socket; a lanyard fixed liner (Ohio Willowwood) contains magnetic electrodes (Liberating Technologies). An on the job usage of five years was supplemented with dedicated and focused intensive two-week use tests at work for both systems. The side-by-side comparison showed that the customized body-powered arm provides reliable, comfortable, effective, powerful as well as subtle service with minimal maintenance; most notably, grip reliability, grip force regulation, grip performance, center of balance, component wear down, sweat/temperature independence and skin state are good whereas the iLimb system exhibited a number of relevant serious constraints. Research and development of functional prostheses may want to focus on body-powered technology as it already performs on manually demanding and heavy jobs whereas eliminating myoelectric technology’s constraints seems out of reach. Relevant testing could be developed to help expediting this. This is relevant as Swiss disability insurance specifically supports prostheses that enable actual work integration. Myoelectric and cosmetic arm improvement may benefit from a less forgiving focus on perfecting anthropomorphic appearance.
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  • Citations (11)
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References167
Newest
Published on Feb 1, 2018in Prosthetics and Orthotics International 1.48
Mona Hichert2
Estimated H-index: 2
(TU Delft: Delft University of Technology),
Alistair N. Vardy5
Estimated H-index: 5
(TU Delft: Delft University of Technology),
Dick H. Plettenburg9
Estimated H-index: 9
(TU Delft: Delft University of Technology)
Background: Body-powered prostheses require cable operation forces between 33 and 131 N. The accepted upper limit for fatigue-free long-duration operation is 20% of a users’ maximum cable operation force. However, no information is available on users’ maximum force. Objectives: To quantify users’ maximum cable operation force and to relate this to the fatigue-free force range for the use of body-powered prostheses. Study design: Experimental trial. Methods: In total, 23 subjects with trans-radia...
Published on Jun 13, 2017in Philosophical Transactions of the Royal Society A
Thomas Roberts11
Estimated H-index: 11
(University of Surrey),
Aimie L. B. Hope3
Estimated H-index: 3
(University of Surrey),
Alexandra C.H. Skelton5
Estimated H-index: 5
(University of Cambridge)
If targets to reduce greenhouse gas emissions and thereby tackle climate change are to be achieved, it will be necessary to reduce both embodied energy costs (e.g. in terms of producing and manufacturing the products and services that society consumes) and operational energy costs. Reducing the number of purchases that people regret could be a first step in changing the overall dynamic of consumption patterns. This research looks at some potentially adverse effects of consumption on well-being (...
Published on Jun 1, 2017in Prosthetics and Orthotics International 1.48
Ali Hussaini2
Estimated H-index: 2
(UNB: University of New Brunswick),
Peter J. Kyberd27
Estimated H-index: 27
(University of Greenwich)
Background:Advancements in upper limb prosthesis design have focused on providing increased degrees of freedom for the end effector through multiple articulations of a prosthetic hand, wrist and elbow. Measuring improvement in patient function with these devices requires development of appropriate assessment tools.Objectives:This study presents a refined clothespin relocation test for measuring performance and assessing compensatory motion between able-bodied subjects and subjects with upper lim...
Published on May 1, 2017in Jpo Journal of Prosthetics and Orthotics
Tuan Duong1
Estimated H-index: 1
,
Brandon Wagner1
Estimated H-index: 1
+ 4 AuthorsAlec Friedrich1
Estimated H-index: 1
ABSTRACTIntroductionUpper-limb amputations make up 10% to 20% of the total amputations in the United States. Of the two million individuals currently living with limb loss, 30% to 50% do not wear their prosthesis regularly. This is a result of lack of education, lack of training, discomfort, poor co
Published on May 1, 2017in Jpo Journal of Prosthetics and Orthotics
Peter J. Kyberd27
Estimated H-index: 27
This study is part of a program to investigate the function of prosthetic arm systems, specifically the new generation multifunction hands. The Southampton Hand Assessment Procedure was used to measure the relative performance of a range of commercial multifunction prosthetic hands. To compare different designs of hands, a single subject was used with repeated measures. Hands from Touch Bionics (i-limb), Steeper (BeBionic), and Ottobock (Michelangelo) were tested and compared with the most effec...
Published on Apr 1, 2017in Prosthetics and Orthotics International 1.48
Rafi Ayub1
Estimated H-index: 1
(UTD: University of Texas at Dallas),
Dario J. Villarreal5
Estimated H-index: 5
(UTD: University of Texas at Dallas)
+ 1 AuthorsFan Gao17
Estimated H-index: 17
Background:Transradial body-powered prostheses are extensively used by upper-limb amputees. This prosthesis requires large muscle forces and great concentration by the patient, often leading to discomfort, muscle fatigue, and skin breakdown, limiting the capacity of the amputee to conduct daily activities. Since body-powered prostheses are commonplace, understanding their optimal operation to mitigate these drawbacks would be clinically meaningful.Objectives:To find the optimal operation of the ...
Jeremy D. Brown6
Estimated H-index: 6
(UPenn: University of Pennsylvania),
Timothy S. Kunz1
Estimated H-index: 1
+ 3 AuthorsR. Brent Gillespie16
Estimated H-index: 16
(UM: University of Michigan)
Myoelectric prostheses have many advantages over body-powered prostheses, yet the absence of sensory feedback in myoelectric devices is one reason body-powered devices are often preferred by amputees. While considerable progress has been made in the mechanical design and control of myoelectric prostheses, research on haptic feedback has not had a similar impact. In this study, we seek to develop a fundamental understanding of the utility of force feedback and vision in the functional operation o...
Published on Feb 14, 2017in Frontiers in Neurorobotics 3.00
Ivan Vujaklija9
Estimated H-index: 9
(Imperial College London),
Aidan D. Roche9
Estimated H-index: 9
(Medical University of Vienna)
+ 4 AuthorsOskar C. Aszmann24
Estimated H-index: 24
(Medical University of Vienna)
Missing an upper limb dramatically impairs daily-life activities. Efforts in overcoming the issues arising from this disability have been made in both academia and industry, although their clinical outcome is still limited. Translation of prosthetic research into clinics has been challenging because of the difficulties in meeting the necessary requirements of the market. In this perspective, we suggest that one relevant factor determining the relatively small clinical impact of myocontrol algori...
Published on Jan 18, 2017in PLOS ONE 2.78
Mona Hichert2
Estimated H-index: 2
,
David A. Abbink3
Estimated H-index: 3
+ 1 AuthorsDick H. Plettenburg9
Estimated H-index: 9
It is generally asserted that reliable and intuitive control of upper-limb prostheses requires adequate feedback of prosthetic finger positions and pinch forces applied to objects. Body-powered prostheses (BPPs) provide the user with direct proprioceptive feedback. Currently available BPPs often require high cable operation forces, which complicates control of the forces at the terminal device. The aim of this study is to quantify the influence of high cable forces on object manipulation with vo...
Published on Dec 1, 2016in Journal of Neuroengineering and Rehabilitation 3.58
Laura H. B. Huinink1
Estimated H-index: 1
(UMCG: University Medical Center Groningen),
Hanneke Bouwsema3
Estimated H-index: 3
(UM: Maastricht University)
+ 2 AuthorsRaoul M. Bongers18
Estimated H-index: 18
(UMCG: University Medical Center Groningen)
Background Little is known about action-perception learning processes underlying prosthetic skills in body-powered prosthesis users. Body-powered prostheses are controlled through a harness connected by a cable that might provide for limited proprioceptive feedback. This study aims to test transfer of training basic tasks to functional tasks and to describe the changes over time in kinematics of basic tasks of novice body-powered prosthesis users.
Cited By11
Newest
Purpose of Review A primary focus for many children with cerebral palsy (CP) is functional independence. However, due to neurologic insults that occur early in life, typical gait pattern development is impaired. Research has shown the importance of task-oriented movements in reorganizing the central nervous system in a functionally meaningful way. Advancements in technology, when used in conjunction with conventional strategies, have made it possible for therapists to utilize devices that provid...
Published on Feb 21, 2019in PLOS ONE 2.78
Scott Adams3
Estimated H-index: 3
,
Kevin E. Bennet21
Estimated H-index: 21
+ 2 AuthorsAbbas Z. Kouzani25
Estimated H-index: 25
Deep brain stimulation (DBS) is a neuromodulatory approach for treatment of several neurological and psychiatric disorders. A new focus on optimising the waveforms used for stimulation is emerging regarding the mechanism of DBS treatment. Many existing DBS devices offer only a limited set of predefined waveforms, mainly rectangular, and hence are inapt for exploring the emerging paradigm. Advances in clinical DBS are moving towards incorporating new stimulation parameters, yet we remain limited ...
Biswarup Neogi1
Estimated H-index: 1
(JIS College of Engineering),
Swati Barui (Narula Institute of Technology)+ 3 AuthorsSudeshna Ghosh1
Estimated H-index: 1
(University College West)
Published on Oct 16, 2018
Ivan Vujaklija (Aalto University)
Robotic manipulators can be controlled in an autonomous way with great precision and dexterity. At the same time they can be equipped with sensors capable of conveying highly precise information on the surroundings, many times superior to that of a human sensory system. However, our limited capacity of interfacing these robots with the human body makes current prosthetic systems to be perceived by the users as simple tools rather than limbs. After decades of developments, osseointegration, selec...
Kilian Baur4
Estimated H-index: 4
(ETH Zurich),
Florian L. Haufe (UZH: University of Zurich)+ -3 AuthorsRobert Riener45
Estimated H-index: 45
(UZH: University of Zurich)
Assistive robotic technology will only fulfill its potential if devices are accepted and regularly used by people with physical disabilities in their everyday life. The Cybathlon is a unique championship in which people with physical disabilities compete against each other to complete everyday tasks using latest robotic technology. The competition herewith offers a platform to drive forward research and challenge the usability of assistive robots. Furthermore, it helps to promote inclusion by in...
Published on Jul 3, 2018in Expert Review of Medical Devices 2.21
Ivan Vujaklija9
Estimated H-index: 9
(Imperial College London),
Dario Farina70
Estimated H-index: 70
(Imperial College London)
ABSTRACTIntroduction: In the last 15 years, the market for prosthetic arms and hands has shifted toward systems with greater degrees of actuation. There has also been a progressive use of emerging technologies to overcome hardware design challenges. Moreover, the proliferation of rapid prototyping has resulted in applications in the prosthetic market. Even though there are concerns on robustness and wide-user acceptance, the affordable and customizable solution offered by rapid prototyping, comb...
Published on Mar 23, 2018
Claudio Castellini26
Estimated H-index: 26
,
Risto Kõiva6
Estimated H-index: 6
+ 2 AuthorsBjörn M. Eskofier10
Estimated H-index: 10
Human-machine interfaces to control prosthetic devices still suffer from scarce dexterity and low reliability; for this reason, the community of assistive robotics is exploring novel solutions to the problem of myocontrol. In this work, we present experimental results pointing in the direction that one such method, namely Tactile Myography (TMG), can improve the situation. In particular, we use a shape-conformable high-resolution tactile bracelet wrapped around the forearm/residual limb to discr...