Classification and Comparison of Mechanical Design of Powered Ankle–Foot Prostheses for Transtibial Amputees Developed in the 21st Century: A Systematic Review

Liu, Jinjing; Osman, Noor Azuan Abu; Kouzbary, Mouaz Al; Kouzbary, Hamza Al; Razak, Nasrul Anuar Abd; Shasmin, Hanie Nadia; Arifin, Nooranida

doi:10.1115/1.4049437

Cited by 11 publications

(5 citation statements)

References 71 publications

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“…5). A list of ankle and foot prostheses was made and described the main mechanisms that transmit the strength of the ankle joint (Liu et al, 2021). -with electrohydraulic actuators (EHA)) organized on 2 levels of hierarchical classification (Fodor et al, 2022).…”

Section: Resultsmentioning

confidence: 99%

Technical Progress in Limb Prostheses: A Classification of Existing Devices

Fodor

Seghedin

2022

Bulletin of the Polytechnic Institute of Iași. Machine Constructions Section

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The technical evolution of the prosthetic field is swift and the technical solutions for the limb prostheses are found in a vast number of the specialized literature, therefore for good information management, a generalized classification of the field is necessary. Based on the use of the idea diagram method, a multicriteria classification of the lower and upper limb prostheses was performed. The classification was made according to the levels of limb amputation, the way of attaching prosthetic devices to the patient, the generations of technological performance adopted over time, the areas in which these prosthetic devices are used, and the mechanisms used for generation and transmission of forces in the joints of ankle & foot prostheses. The results include general information and help novice researchers in future approaches to the field of limb prostheses.

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Section: Resultsmentioning

confidence: 99%

Technical Progress in Limb Prostheses: A Classification of Existing Devices

Fodor

Seghedin

2022

Bulletin of the Polytechnic Institute of Iași. Machine Constructions Section

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“…The motor-loop controller works to generate the main torque command 𝑇 𝑀 with the feedback from motor (𝜃 𝑀 𝑎𝑛𝑑 𝜃 ̇𝑀 ), and the ankle-loop controller generates 𝑇 𝐴 to amend 𝑇 𝑀 . Therefore, the total torque command 𝑇 𝑟𝑒𝑓 for the inner-level torque/current control of the motor is shown in equation (2). On the aspect of parameters, the stiffness and damping parameters of the motor-loop controller are tuned as constant as usual.…”

Section: Figure 1 Schematic Diagram Of Se+uepamentioning

confidence: 99%

“…Since the first powered transtibial prosthesis is proposed [1], its advantage of providing net power during the operation has been approved. According to our previous statistics, 91 powered transtibial prostheses were developed and reported in the last 20 years, where more than 85% of these devices are driven by motorized actuators [2]. Therefore, the control of motorized actuators considerably influences to what extent a powered transtibial prosthesis can perform stably and accurately.…”

Section: Introductionmentioning

confidence: 99%

Design of an Improved Impedance Controller for Powered Transtibial Prosthesis

Xie

Liu

2022

J. Phys.: Conf. Ser.

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With the rapid development of powered transtibial prostheses, the control of motorized actuators is a research hotspot. This study designs a double-loop impedance controller to improve the performance of the traditional controller. Including time-varying parameters, the designed controller is implemented on a novel elastic actuator. Under different loads of users’ weights, simulation tests are conducted in a working condition of walking, and the results show that the designed control system has outstanding performances in the control of an entire gait cycle. The error between output and reference of ankle joint position during walking is less than 0.013rad in each sample time. A position disturbance test demonstrates that the control also has a high tolerance of any position disturbance at the ankle joint. The double-loop impedance controller can replace traditional finite-state impedance control in the field of the powered transtibial prosthesis and has the potential to be applied in other relative fields.

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“…To remedy the defect, researchers paid attention to the powered ankle-foot prosthesis as a new direction of development. Since the powered prosthesis was first proposed in 1998 [11], more than 90 different kinds of designs were reported according to our previous statistics [12]. In this case, it is worth studying whether wearing the powered ankle-foot prosthesis can provide a better rehabilitation extent than wearing the ESAR foot for the users as expected.…”

Section: Introductionmentioning

confidence: 98%

Design and preliminary verification of a novel powered ankle–foot prosthesis: From the perspective of lower-limb biomechanics compared with ESAR foot

Liu,

Cheah

et al. 2024

PLoS ONE

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A novel powered ankle–foot prosthesis is designed. The effect of wearing the novel prosthesis and an energy-storage-and-return (ESAR) foot on lower-limb biomechanics is investigated to preliminarily evaluate the design. With necessary auxiliary materials, a non-amputated subject (a rookie at using prostheses) is recruited to walk on level ground with an ESAR and the novel powered prostheses separately. The results of the stride characteristics, the ground reaction force (GRF) components, kinematics, and kinetics in the sagittal plane are compared. Wearing the powered prosthesis has less prolongation of the gait cycle on the unaffected side than wearing the ESAR foot. Wearing ESAR or proposed powered prostheses influences the GRF, kinematics, and kinetics on the affected and unaffected sides to some extent. Thereinto, the knee moment on the affected side is influenced most. Regarding normal walking as the reference, among the total of 15 indexes, the influences of wearing the proposed powered prosthesis on six indexes on the affected side (ankle’s/knee’s/hip’s angles, hip’s moment, and Z- and X-axis GRF components) and five indexes on the unaffected side (ankle’s/knee’s/hip’s angles and ankle’s/hip’s moments) are slighter than those of wearing the ESAR foot. The influences of wearing the powered prosthesis on two indexes on the unaffected side (knee’s moment and X-axis GRF component) are similar to those of wearing the ESAR foot. The greatest improvement of wearing the powered prosthesis is to provide further plantarflexion after reaching the origin of the ankle joint before toe-off, which means that the designed powered device can provide further propulsive power for the lifting of the human body’s centre of gravity during walking on level ground. The results demonstrate that wearing the novel powered ankle–foot prosthesis benefits the rookie in recovering the normal gait more than wearing the ESAR foot.

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Classification and Comparison of Mechanical Design of Powered Ankle–Foot Prostheses for Transtibial Amputees Developed in the 21st Century: A Systematic Review

Cited by 11 publications

References 71 publications

Technical Progress in Limb Prostheses: A Classification of Existing Devices

Technical Progress in Limb Prostheses: A Classification of Existing Devices

Design of an Improved Impedance Controller for Powered Transtibial Prosthesis

Design and preliminary verification of a novel powered ankle–foot prosthesis: From the perspective of lower-limb biomechanics compared with ESAR foot

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