User-centred design as an important component of technological development

Jankowski, Natalie; Schönijahn, Laura; Salchow, Christina; Ivanova, Ekaterina; Wahl, Michael

doi:10.1515/cdbme-2017-0015

Cited by 7 publications

(11 citation statements)

References 18 publications

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“…The system presented in the project RETRAINER [45] and the GO-SAIL system [46] are two examples of where an integration of lower and upper arm support was realized. As both presented array identification methods turned out to be suitable for finding VEs for grasp-and-release tasks, both methods together with the forearm movement compensation presented in [44] could be integrated into a holistic system for a hand neuroprosthesis including a user-evaluated interface [21].…”

Section: Discussionmentioning

confidence: 99%

“…We conducted face-to-face user acceptance and satisfaction surveys using standardized and system specific questionnaires and interviews. ‘Users’ in the context of rehabilitation systems might refer to patients and health professionals such as physicians and therapists as well [21]. The interests of both user groups need to be considered for the successful integration of new technologies.…”

Section: Introductionmentioning

confidence: 99%

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User-centered practicability analysis of two identification strategies in electrode arrays for FES induced hand motion in early stroke rehabilitation

Salchow-Hömmen

Jankowski

Valtin

et al. 2018

J NeuroEngineering Rehabil

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BackgroundSurface electrode arrays have become popular in the application of functional electrical stimulation (FES) on the forearm. Arrays consist of multiple, small elements, which can be activated separately or in groups, forming virtual electrodes (VEs). As technology progress yields rising numbers of possible elements, an effective search strategy for suitable VEs in electrode arrays is of increasing importance. Current methods can be time-consuming, lack user integration, and miss an evaluation regarding clinical acceptance and practicability.MethodsTwo array identification procedures with different levels of user integration—a semi-automatic and a fully automatic approach—are evaluated. The semi-automatic method allows health professionals to continuously modify VEs via a touchscreen while the stimulation intensities are automatically controlled to maintain sufficient wrist extension. The automatic approach evaluates stimulation responses of various VEs for different intensities using a cost function and joint-angles recordings. Both procedures are compared in a clinical setup with five sub-acute stroke patients with moderate hand disabilities. The task was to find suitable VEs in two arrays with 59 elements in total to generate hand opening and closing for a grasp-and-release task. Practicability and acceptance by patients and health professionals were investigated using questionnaires and interviews.ResultsBoth identification methods yield suitable VEs for hand opening and closing in patients who could tolerate the stimulation. However, the resulting VEs differed for both approaches. The average time for a complete search was 25% faster for the semi-automatic approach (semi-automatic: 7.3min, automatic: 10.5min). User acceptance was high for both methods, while no clear preference could be identified.ConclusionsThe semi-automatic approach should be preferred as the search strategy in arrays on the forearm. The observed faster search duration will further reduce when applying the system repeatedly on a patient as only small position adjustments for VEs are required. However, the setup time will significantly increase for generation of various grasp types and adaptation to different arm postures. We recommend different levels of user integration in FES systems such that the search strategy can be chosen based on the users’ preferences and application scenario.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

User-centered practicability analysis of two identification strategies in electrode arrays for FES induced hand motion in early stroke rehabilitation

Salchow-Hömmen

Jankowski

Valtin

et al. 2018

J NeuroEngineering Rehabil

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“…The first pillar is a user-centered development and design approach in prosthetics [13][14][15][16][17] and its implementation in manufacturers' research and development processes, which is still hindered by perceived financial and regulatory barriers. 18,19 User-centered development takes into account a diversity of user needs and preferences to a greater extent than is usually the case in medical product development and is commonly seen as a means to improve products with regard to functionality and user acceptance.…”

Section: Involvement Of Stakeholders and A 4-pillar Framework To Impr...mentioning

confidence: 99%

Improving access to prosthetic limbs in Germany: An explorative review

Baumann,

Maria

2023

Prosthetics &Amp; Orthotics International

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Background: Meeting the needs of users when it comes to accessing prosthetic limbs is an important factor in the acceptance and use of a prosthesis; the cost of such prosthetics also constitutes a potential financial challenge. Objectives: The aim of this study was to investigate potential hurdles to accessing limb prosthetics in the German health care system, including organizational, social, economic, and regulatory issues, and to provide food for thought about ethical implications. Methods: Sixteen German users of limb prosthetics with upper-limb and/or lower-limb amputation were recruited by means of purposive sampling. Semistructured interviews were performed, with the guiding question being as follows: “What were your experiences with the German prosthetic care and reimbursement system?” Ten stakeholders (insurance representatives, prosthetic technicians, medical service representatives, a law expert, and a lawyer) were asked about the issues they encounter in their work related to prosthetic care and reimbursement, and about ways to ameliorate these issues. A qualitative content analysis method was used to analyze the data. Results: Half of the interviewed service users experienced hurdles to gaining a suitable prosthetic device, such as waiting times and pressure to negotiate their need for a certain prosthesis. Some of the views expressed about the issues relating to prosthetic reimbursement in Germany were common to all stakeholders, whereas some conflicted with the views of others. Conclusions: Equitable access to prostheses and the efficient distribution of prosthetic innovations could be improved by organizational and regulatory measures. Furthermore, a user-centered design of prostheses, a health technology assessment, monitoring of prosthetic care pathways, and a societal discussion about rationing in health care should be considered as parts of a broader approach to tackle this issue.

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“…We can't address what we don't know, this is why it is so important for developers in all fields engage with those lived experts. 1 My injury attached the label of 'disabled' on me. Before that I was a 'consumer'.…”

Section: Shifting Perspectives To the Consumermentioning

confidence: 99%

Exoseketons: A Rehab Tech Consumer’s Unexpected March to Action

Angus¹

2021

Can. Prosthet. Orthot. J.

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This paper is both a stakeholder perspectives as well as a ‘case study’ describing a journey from sudden disability to participant and investor in exoskeleton design. It tells of my experiences and opinions, as a successful fashion designer, when my life took a drastic turn on becoming paralysed from the waist down over the course of 24 hours, by a spinal tumour. Getting this diagnosis was ‘the worst day in my life’, and it was quickly followed by the ‘second worst’ when, in my determination to walk again, I received Knee Ankle Foot Orthotics (KAFOs) and was shocked to learn that this appeared to be the best technology solution available on the market ‘suitable’ for use in the community. Initial anger at the system for not being better, at the rehab team for their complacency, and at myself for allowing a feeling of helplessness to take over led to questions such as: what does this say about our society? and what are we all willing to accept, for ourselves and others? This is professional opinion and an essay about how we see ourselves and how others see us. The journey from pre-injury ‘consumer’ to post-injury ‘disabled’ person and learning that being labeled ‘disabled’ leads to the additional handicap of the narrow vision of “cost” taken by the mobility industry where innovative ideas are stripped down to the bare minimum with the excuse that patients are “lucky” to have what they have been “given”. Grappling with these labels and inequities and seeking a better outcome, I became an integral team member of an exoskeleton development team, leading to the design of The Next Generation Exoskeleton! This is MY story, the story of Chloe Angus. It is the story of inclusive, user focused design and is a call to include and respect the end users of all assistive device technology design early in the design process and it is being told from the perspective of a person having experience and success in the world of business. Article PDF Link: https://jps.library.utoronto.ca/index.php/cpoj/article/view/37250/28296 How To Cite: Angus C. Exoseketons: a rehab tech consumer’s unexpected march to action. Canadian Prosthetics & Orthotics Journal. 2021; Volume 4, Issue 2, No.2. https://doi.org/10.33137/cpoj.v4i2.37250 Corresponding Author: Chloe AngusChloe Angus Design, Vancouver, BC, Canada.E-Mail: chloe@chloeangus.comORCID ID: https://orcid.org/0000-0002-5468-3121

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User-centred design as an important component of technological development

Cited by 7 publications

References 18 publications

User-centered practicability analysis of two identification strategies in electrode arrays for FES induced hand motion in early stroke rehabilitation

User-centered practicability analysis of two identification strategies in electrode arrays for FES induced hand motion in early stroke rehabilitation

Improving access to prosthetic limbs in Germany: An explorative review

Exoseketons: A Rehab Tech Consumer’s Unexpected March to Action

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