Conceptual design of an alignment device for transfemoral prosthesis

Vásquez, Ana Isabel; Pérez, Juliana Uribe

doi:10.17533/udea.redin.20200805

Cited by 3 publications

(2 citation statements)

References 7 publications

(6 reference statements)

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“…Amputation of the upper limb is one of the leading causes of disability and probably occurs at all levels of the limbs. This problem urgently needs to be addressed and solutions found to provide a better quality of life to the millions of people who face the same conditions [1].…”

Section: Introductionmentioning

confidence: 99%

Static, Dynamic, and High Cycle Fatigue Analysis of Crossed Spherical Gearing for Robotic Arm Ball Joint: A Finite Element Analysis Approach

Serna-Landivar,

Risco Sernaqué,

Rivas Moreano

et al. 2024

Int. J. Onl. Eng.

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Crossed spherical gearing is used in the joints of robotic arm prostheses and allows mobility in 3 degrees of freedom. This paper aims to evaluate the design of a cross-spherical gear with three different materials, PEEK, AISI 304L, and Ti-6Al-4V, for a robotic arm prosthesis by finite element analysis. ANSYS mechanical software (version 2021 R1) was used to perform the static analysis and evaluate the deformations and stresses, modal analysis of natural frequencies and vibration modes, and high cycle fatigue analysis to determine fatigue resistance. The results obtained in the static analysis show that the maximum stresses are in the same zones for the three materials and have similar values. However, the Ti-6Al-4V and ASI 304L materials have a higher safety factor than PEEK, with a value of 5.17. In conclusion, the crossed spherical gearing is numerically validated using the finite element analysis so that the prototype can be later manufactured at an experimental level, and the values obtained for the crossed spherical gearing of the robotic arm prosthesis can be verified.

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Section: Introductionmentioning

confidence: 99%

Static, Dynamic, and High Cycle Fatigue Analysis of Crossed Spherical Gearing for Robotic Arm Ball Joint: A Finite Element Analysis Approach

Serna-Landivar,

Risco Sernaqué,

Rivas Moreano

et al. 2024

Int. J. Onl. Eng.

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“…La amputación de las extremidades superiores es una de las principales causas de discapacidad y puede ocurrir en cualquier nivel de la extremidad, esto es una problemática que se debe de abordar con urgencia y buscar soluciones para dar calidad de vida a las millones de personas que se encuentran en estas condiciones [1].…”

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Numerical simulation of three degrees of freedom ball joint crossed spherical gear for a robotic arm prosthesis

Serna-Landivar,

Anticona-Valderrama,

Flores

2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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The objective of this article is to evaluate, through the finite element method, the design of a crossed spherical gear with two different materials (polyether ether ketone -PEEK and titanium alloy -Ti-6Al-4V) for a robotic arm prosthesis. The software ANSYS Mechanical was used to simulate strains, stresses, natural frequencies and modes of vibration. The results obtained show that the maximum stresses occur on the same regions for both materials and have similar values. However, the titanium alloy (Ti-6Al-4V) has a higher safety factor compared to that of the PEEK.Therefore, the spherical crossed gear made of titanium has better dynamic behavior and a higher safety factor in the event of an overload of the robotic arm prosthesis.

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Functionality and Comfort Design of Lower-Limb Prosthetics: A Review

Alluhydan,

Siddiqui,

Elkanani

2023

Journal of Disability Research

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This literature review on the design of amputated lower limbs has covered various aspects related to prosthetic limb design. It has highlighted the need for continuous improvement and innovation in order to enhance user satisfaction, mobility, and overall quality of life. Biomechanical factors such as gait analysis, joint range of motion, force distribution, and energy efficiency were identified as crucial considerations in amputated lower-limb design. Socket design principles, focusing on comfort and proper load distribution, were found to be essential for achieving a well-fitting and functional prosthetic limb. Emerging technologies, including advanced materials, robotics, neural interfaces, and sensor technology, were explored as potential avenues for improvement. These technologies showed promise in enhancing functionality, control, and sensory feedback in prosthetic limbs. A user-centric approach was emphasized, involving users in the design process and incorporating their feedback and preferences. Affordability and accessibility were highlighted as significant concerns, calling for the development of cost-effective solutions. Long-term performance and durability were also emphasized, stressing the need for robust materials and quality control processes. The integration of neural interfaces and sensory feedback posed opportunities and challenges for achieving more natural limb control and sensation. To sum up, this literature review has furnished valuable perspectives on amputated lower-limb design, underscoring the significance of refining design principles, accounting for biomechanical variables, embracing emerging technologies, and integrating user input. Future directions include addressing affordability, long-term performance, and neural integration while leveraging advancements in materials, technology, and user-centered design.

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Conceptual design of an alignment device for transfemoral prosthesis

Cited by 3 publications

References 7 publications

Static, Dynamic, and High Cycle Fatigue Analysis of Crossed Spherical Gearing for Robotic Arm Ball Joint: A Finite Element Analysis Approach

Static, Dynamic, and High Cycle Fatigue Analysis of Crossed Spherical Gearing for Robotic Arm Ball Joint: A Finite Element Analysis Approach

Numerical simulation of three degrees of freedom ball joint crossed spherical gear for a robotic arm prosthesis

Functionality and Comfort Design of Lower-Limb Prosthetics: A Review

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