Design of an exercise glove for hand rehabilitation using spring mechanism

Serbest, Kasım; Ates, Serdar; Stienen, Arno H. A.

doi:10.1109/biyomut.2016.7849403

Cited by 4 publications

(9 citation statements)

References 10 publications

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“…Rehabilitation SEG are designed to help the patient regain strength, dexterity, and coordination to recover hand functionality and range of motion (ROM) [33]. These SEG are focused on performing specific fist motions such as full, hook, straight, and tabletop [18] or open-close to improve grasping tasks [34]. Thumb, index, and middle finger flexion-extension is needed for strong grasping [31,35].…”

Section: Seg Design Criteriamentioning

confidence: 99%

“…Nevertheless, low repeatability is the main drawback during this process [48]. Recent developments involve thermomethods [34], inverse flow injection [42,82], lost wax molding [88], or fused deposition modeling with 3D printing at home to reduce SEG costs and facilitate its acquisition [89]. However, there is still room to improve SEG materials and fabrication with low costs.…”

Section: Manufacture Criterionmentioning

confidence: 99%

“…Normally, open-loop control (OLC) and closed-loop control strategies are implemented during SEG operation. OLC schemes have used springs [1,34] or mechanical switches [54] for manual operation where patients are able to drive an actuator to accomplish a specific task [96]. OLC strategies require the system to be stable by construction.…”

Section: Applied Bionics and Biomechanicsmentioning

confidence: 99%

“…Regarding fluid actuation, 10 N to 15 N are required for grasping tasks [11,41]. SEG must be able to generate 7 N per finger or around 25 N on the whole hand with distributed forces along the fingers to minimize pressure location points, according to [34]. Normally, actuators with variable stiffness require 120 kPa for pinching and 160 kPa for grasping [18] while multisegment actuators require between 345 kPa and 400 kPa for flexion motion [51].…”

Section: Applied Bionics and Biomechanicsmentioning

confidence: 99%

“…Patients should take physical therapy sessions at rehabilitation facilities as well as at home [46,92] in order to perform exercises on their own and not only depend on the availability of therapists [34]. SEG must be lightweight to allow their transportation [31,73].…”

Section: Portability Criterionmentioning

confidence: 99%

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Design Criteria of Soft Exogloves for Hand Rehabilitation-Assistance Tasks

Dávila-Vilchis

Ávila-Vilchis

Vilchis-González

et al. 2020

Applied Bionics and Biomechanics

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This paper establishes design criteria for soft exogloves (SEG) to be used as rehabilitation or assistance devices. This research consists in identifying, selecting, and grouping SEG features based on the analysis of 91 systems that have been proposed during the last decade. Thus, function, mobility, and usability criteria are defined and explicitly discussed to highlight SEG design guidelines. Additionally, this study provides a detailed description of each system that was analysed including application, functional task, palm design, actuation type, assistance mode, degrees of freedom (DOF), target fingers, motions, material, weight, force, pressure (only for fluids), control strategy, and assessment. Such characteristics have been reported according to specific design methodologies and operating principles. Technological trends are contemplated in this contribution with emphasis on SEG design opportunity areas. In this review, suggestions, limitations, and implications are also discussed in order to enhance future SEG developments aimed at stroke survivors or people with hand disabilities.

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Section: Seg Design Criteriamentioning

confidence: 99%

Section: Manufacture Criterionmentioning

confidence: 99%

Section: Applied Bionics and Biomechanicsmentioning

confidence: 99%

Section: Applied Bionics and Biomechanicsmentioning

confidence: 99%

Section: Portability Criterionmentioning

confidence: 99%

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Design Criteria of Soft Exogloves for Hand Rehabilitation-Assistance Tasks

Dávila-Vilchis

Ávila-Vilchis

Vilchis-González

et al. 2020

Applied Bionics and Biomechanics

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Biomechanical Evaluation of Dynamic Splint Based on Pulley Rotation Design for Management of Hand Spasticity

Yang

Emzain

Huang

2021

IEEE Trans. Neural Syst. Rehabil. Eng.

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A dynamic splint is superior to traditional static splint, offering more benefits such as reduced spasticity, allowing comfortable stretch, repositioning fingers in extension positions, and increasing hand performance. This paper suggested the development of a dynamic splint based on a pulley rotation with a locking system as a home rehabilitation device to reduce hand spasticity in stroke patients. Moreover, this study consisted of two main activities: simulation using finite element analysis and clinical experimental trials. Eight stroke patients participated in 4 weeks of intervention using the proposed dynamic splint for a combined total of least 3 hours per day at home. Outcome measures included Fugl-Meyer Assessment (FMA) and Modified Modified Ashworth Scale (MMAS) at baseline, 2 weeks, and 4 weeks. After 4 weeks of wearing, participants were also asked to fill out a satisfaction questionnaire. The results showed that wearing this proposed dynamic splint over 4 weeks, the hand function of participants increased significantly(p < 0.05), and the spasticity of the hand muscles decreased significantly(p < 0.05). With an overall rating of 8 out of 10 points, stroke participants had a high level of satisfaction with this home-use dynamic splint. The findings indicated that stroke patients who used this proposed splint showed substantial changes in hand function and reduced hand spasticity.

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Design and Analysis of a Dynamic Splint Based on Pulley Rotation for Post-Stroke Finger Extension Rehabilitation Device

Emzain

Huang²,

Yang

et al. 2020

JRM

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The presence of rehabilitation tools is essential to more rapidly cure hand muscle disorders of people affected by stroke. One of the tools is a dynamic splint that is fit-sized, lightweight, comfortable to wear, and easy to operate. The paper proposes the design and analysis of new dynamic splints based on pulley rotation as a rehabilitation device for finger extension after stroke. This device consists of the main splint, the pulley, the locker, the finger handles, the ball bearing, and the fishing line. To lock and stop pulley turning, the locking system is designed to complement it which is also the most important mechanical segment. The shear stress of the pulley was 0.026 N/mm2. The deformation, stress, and strain energy of the locking system section were analyzed by the finite element method. The results showed that the deformation distribution around the locker section was at 0.1-0.15 mm intervals. The maximum stress 25.0786 MPa, which is still inferior to the yield strength of ABS Material (28.5 MPa). The safety factor of the structure is about n = 1.14. The largest strain energy was 0.2856 mJ at the same place as with the maximum stress which was close to the conical end of the locker. The correlation between stress-strain energy and moment was linear as well. In future work, a prototype will be fabricated using 3D printers, and it will be applied to the stroke patient. In addition, the therapies will be involved to assess the improvement of the finger extension of stroke patients.

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Design of an exercise glove for hand rehabilitation using spring mechanism

Cited by 4 publications

References 10 publications

Design Criteria of Soft Exogloves for Hand Rehabilitation-Assistance Tasks

Design Criteria of Soft Exogloves for Hand Rehabilitation-Assistance Tasks

Biomechanical Evaluation of Dynamic Splint Based on Pulley Rotation Design for Management of Hand Spasticity

Design and Analysis of a Dynamic Splint Based on Pulley Rotation for Post-Stroke Finger Extension Rehabilitation Device

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