Mechanical design and analysis of a pneumatic ankle foot orthosis

Ülkir, Osman; Akgün, Gazi; Kaplanoğlu, Erkan

doi:10.1109/ebbt.2018.8391461

Cited by 8 publications

(5 citation statements)

References 11 publications

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“…In order to provide users with physical support, the generated virtual limb can be re-constructed on motoring system to drive Hip-knee-ankle-foot orthoses (HKAFOs) [97,98]. Paralysis of hip abductor muscles is one of the most common reasons for prescribing HKAFOs.…”

Section: Construction Of Virtual Limb Using Active Orthosismentioning

confidence: 99%

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VIGOR: A Versatile, Individualized and Generative ORchestrator to Motivate the Movement of the People with Limited Mobility

Yu¹,

Wu²,

Ledesma³

et al. 2022

Smart and Pervasive Healthcare

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Physical inactivity is a major national concern, particularly among individuals with chronic conditions and/or disabilities. There is an urgent need to devise practical and innovative fitness methods, designed and grounded in physical, psychological and social considerations that will effectively promote physical fitness participation among individuals of all age groups with chronic health condition(s) and/or disabilities. This research is dedicated to achieving Versatile, Individualized, and Generative ORchestrator (VIGOR) to motivate the movement of the people with limited mobility. Tai-Chi is a traditional mind–body wellness and healing art, and its clinical benefits have been well documented. This work presents a Tai-Chi based VIGOR under development. Through the use of Helping, Pushing and Coaching (HPC) functions by following Tai-Chi kinematics, the VIGOR system is designed to make engagement in physical activity an affordable, individually engaging, and enjoyable experience for individuals who live with mobility due to disease or injury. VIGOR consists of the following major modules: (1) seamless human-machine interaction based on the acquisition, transmission, and reconstruction of 4D data (XYZ plus somatosensory) using affordable I/O instruments such as Kinect, Sensor and Tactile actuator, and active-orthosis/exoskeleton; (2) processing and normalization of kinetic data; (3) Identification and grading of kinetics in real time; (4) adaptive virtual limb generation and its reconstruction on virtual reality (VR) or active-orthosis/exoskeleton; and (5) individualized physical activity choreography (i.e., creative movement design). Aiming at developing a deep-learning-enabled rehab and fitness modality through infusing the domain knowledge (physical therapy, medical anthropology, psychology, electrical engineering, bio-mechanics, and athletic aesthetics) into deep neural network, this work is transformative in that the technology can be applied to the broad research areas of intelligent systems, human-computer interaction, and cyber-physical human systems. The resulting VIGOR has significant potentials as both rehabilitative and fitness modalities and can be adapted to other movement modalities and chronic medical conditions (e.g., yoga and balance exercise; fibromyalgia, multiple sclerosis, Parkinson disease).

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Section: Construction Of Virtual Limb Using Active Orthosismentioning

confidence: 99%

“…They can incorporate flexion-extension and abduction-adduction control and have free or locking joints [99]. Different from passive and semi-active orthoses, the HKAFOs have basically built-in power supplies, one or more actuators for moving the joint, the sensors for getting feedback data [97].…”

Section: Construction Of Virtual Limb Using Active Orthosismentioning

confidence: 99%

VIGOR: A Versatile, Individualized and Generative ORchestrator to Motivate the Movement of the People with Limited Mobility

Yu¹,

Wu²,

Ledesma³

et al. 2022

Smart and Pervasive Healthcare

Self Cite

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Section: Construction Of Virtual Limb Using Active Orthosismentioning

confidence: 99%

Smart and Pervasive Healthcare

2022

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Dr. Urvashi Sharma has a BEng in Electronic and Electrical Engineering, MSc in Biomedical Engineering, MSc in Counselling and Psychotherapy, and Ph.D. in Healthcare Information Systems. She is driven by her passion to understand how human beings relate to and encounter interventions and innovations within a given context. Over the last seventeen years, Dr. Sharma has worked in different fields and sectors including education as well as health and social care. Her work has contributed to understanding the role of users and their context in relation to a successful application and use of interventions and/or innovations. She is a proponent of stakeholder engagement and involvement in decision making, and the application of appropriate research methodologies that enable exploration of lived experiences and provide deeper insights into what really matters to users.

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“…It is used to modulate the damping at the joints. Fully-active AFO is more complex device among the AFO because it normally contain on board power source, control system, sensors, and actuators [1]. This fully active usually used to produce torque for propulsive assistance and motion control.…”

Section: Introductionmentioning

confidence: 99%

Design & Analysis of Ankle Foot Orthosis for Assisting Car Driver after Ankle Surgery

Daud¹,

H²,

Shah³

2020

IJETT

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Car accidents often occur and normally affected the car driver's foot and ankle. If it is involved surgery for the ankle treatment, the recovery process normally takes a long time. As a normal practice, ankle foot orthosis (AFO) will be worn by an ankle injury patient for shorten the recovery process and also to protect the foot from the pressure of the pedal car while driving especially during the event of such a sudden stop. However, the detail investigation of the suitability of AFO in absorbing or stand the pressure from pedal car during emergency stop is still lacking. Thus, the aim of this study is to investigate the suitability of the current AFO in absorbing or stand the pressure from pedal car during emergency stop and then propose the optimum one. The study was carried out by measuring the foot anthropometric of volunteer which it is to be used in designing the proposed AFO using SolidWorks software. There are three designs were constructed and analyzed to determine the optimum. Analytical process is done using ANSYS software and carbon fiber and polyprophelene (PP) were chosen for analyze the most suitability material for this special AFO (to use for protect immobilize foot during emergency braking). In respect to the material of AFO, results obtained can be concluded that PP is not suitable for this special AFO in absorbing impact during emergency brake. The FE results of the three designs were recorded and compared using the "screening" concept. Design with lowest stress factor is considered as the optimum design and suitable for drivers who have undergone ankle surgery. Based on the screening concept table, the second design is chosen as the optimum one. It gave the lowest maximum stress 4.5495 E + 08 and the safety factor was7.03. In respect of the geometry, based on FE simulation result and concept screening table, we can concluded that the design 2 was the optimum design. However, a better confidence of this optimum design to apply in AFO can be obtained by producing the real AFO model and then further testing needs to be conducted in order to evaluate whether or not, this device able to sustain the impact of emergency braking.

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Mechanical design and analysis of a pneumatic ankle foot orthosis

Cited by 8 publications

References 11 publications

VIGOR: A Versatile, Individualized and Generative ORchestrator to Motivate the Movement of the People with Limited Mobility

VIGOR: A Versatile, Individualized and Generative ORchestrator to Motivate the Movement of the People with Limited Mobility

Smart and Pervasive Healthcare

Design & Analysis of Ankle Foot Orthosis for Assisting Car Driver after Ankle Surgery

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