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Generation And Development Of A Biomechanical Finite Element Model Of The Residual Limb And Prosthetic Socket
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Book Synopsis Generation and Development of a Biomechanical Finite Element Model of the Residual Limb and Prosthetic Socket by : Laura Finney
Download or read book Generation and Development of a Biomechanical Finite Element Model of the Residual Limb and Prosthetic Socket written by Laura Finney and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Biomechancial Model of the Interface Between the Residual Limb and Prosthesis for Trans-femoral Amputees by : V.S.P Lee
Download or read book Development of a Biomechancial Model of the Interface Between the Residual Limb and Prosthesis for Trans-femoral Amputees written by V.S.P Lee and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prosthetic Biomechanics in Engineering by : N.A. Abu Osman
Download or read book Prosthetic Biomechanics in Engineering written by N.A. Abu Osman and published by CRC Press. This book was released on 2021-12-30 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prosthetic biomechanics is an interdisciplinary field of engineering, medicine, and biology, focused on enhancing people’s lifestyles. In the past 20 years, the field of prosthetic biomechanics and its potential have grown due to the support of advances in engineering technologies. Prosthetic Biomechanics in Engineering is about the recent advances in prosthetic engineering research. The scope of the book is focused on the design, development, and evaluation of a prosthetic systems that are being used in biomechanical applications. The book covers advanced materials, conceptual design, classification, ergonomics design applications, brain computer interface (BCI) system, motion analysis, postural stand stability, upper and lower limb prosthetics, types of suspension systems for prosthetics, Fiber Bragg Grating-based techniques, and pressure on the residual limb and the socket. The early chapters effectively describe new sensors for in-socket systems, new pylon material, and advanced gait analysis. Further chapters discuss advanced techniques for the design and development of prosthetics based on clinical and emergency uses. The information provided in this book is intended for researchers and investigators to encourage further advances in the field of prosthetics research, and for the development of rehabilitation equipment for the improvement of human health, and it: Presents recent advances in prosthetic biomechanics engineering research Discusses the design and development of limb prosthetic systems Explores advanced concepts of the prosthetic sockets Describes gait analysis of prosthetics and orthotics Dr Noor Azuan Abu Osman is a practicing engineer and Professor of Biomechanics with Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Malaysia.
Book Synopsis Design and Verification of a Finite Element Analysis Model for Predicting Deflection of Actively Actuated Prosthetic Sockets by : Rafael Rodriguez
Download or read book Design and Verification of a Finite Element Analysis Model for Predicting Deflection of Actively Actuated Prosthetic Sockets written by Rafael Rodriguez and published by . This book was released on 2011 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: A lower limb prosthesis provides assistance to its user in both ambulation and stationary support. The lower limb prosthesis consists of a socket, which interfaces with the residual limb, a pylon, attachment hardware to secure the pylon to the socket, and a prosthetic foot. For the prosthesis to be effective, the socket must be comfortable, functional and aesthetically appealing, usually in that order. Lack of comfort and fit can cause movement problems and health issues. The residual limb of the amputee changes its volume throughout the day and in order to maintain comfort a socket must be able to adapt to these volume changes. Previous research has resulted in the development of concepts for inflatable prosthetic sockets capable of addressing this need. The concepts rely on laser sintering (LS) to manufacture the parts. This research focuses on the development of a finite element analysis (FEA) method to assist in the design of adaptive sockets. The FEA can be used to predict the pressure-deflection curve of a given socket design. The FEA method was verified by experiments using LS manufactured test specimens. Results from FEA simulations indicate that the LS-manufactured sockets will achieve the desired deflection (~0.1 in) for relatively low pressures (
Book Synopsis The Use of a Novel Residuum Model to Design a Variable-impedance Transtibial Prosthetic Socket by : David Moinina Sengeh
Download or read book The Use of a Novel Residuum Model to Design a Variable-impedance Transtibial Prosthetic Socket written by David Moinina Sengeh and published by . This book was released on 2016 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: For people living with limb amputation, the prosthetic socket - the interface between the residuum and prosthesis - is the most critical component. When a socket is uncomfortable, especially due to poor fit, the quality of life for a patient is greatly hindered. However, conventional design of sockets is largely artisan, with limited input of quantitative data. Current computer-aided and manufacturing (CAD/CAM) designs are still not clinically applicable solutions. Due to model identification procedures that employ non patient-specific and incomplete data sets, today's finite element (FE) models of the residuum are not predictive, leading to suboptimal socket designs. As such, there exists a need for a comprehensive biomechanical model of the residuum for the quantitative design and computational evaluation of patient-specific prosthetic sockets. This thesis presents a combined experimental-numerical approach to evaluate and validate a transtibial residuum biomechanical model. The central hypothesis of the work is that a single biomechanical model can predict the large non-linear response at various sites on a residuum under load. To evaluate this hypothesis, a non-linear, two-tissue model was formulated where tissue geometries were defined using MRI data of the residuum. The non-linear viscoelastic material parameters of the model were identified through inverse FEA-based optimization using in-vivo indentation experimental data at four locations. Using optimized model tissue parameters, the mean percentage error (mean absolute error/ maximum experimental force) between the experimental and simulation force-time curves at 14 other locations across the evaluated transtibial residuum was 7 ± 3%. Using this same modeling methodology and a single set of material constants to describe the bulk soft tissue biomechanical response of seven distinct transtibial residual limb models, the average percentage error for indentations at multiple locations across all seven limbs was 7 ± 1%. From these predictive models of residuum limbs, one rigid novel socket and two multimaterial transtibial sockets were designed, fabricated and evaluated through an entirely quantitative, automated and repeatable methodology. In a preliminary clinical investigation, the novel sockets were shown to reduce peak contact pressures at the tibia and fibular head regions on the residuum by significant amounts during standing compared to a conventional socket interface designed and fabricated by a trained prosthetist.
Book Synopsis Development of a Biomechanical Model of the Interface Between the Residual Limb and Prosthesis for Trans-femoral Amputees by : Vee Sin Peter Lee
Download or read book Development of a Biomechanical Model of the Interface Between the Residual Limb and Prosthesis for Trans-femoral Amputees written by Vee Sin Peter Lee and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biomechanical Model of Transhumeral Prostheses by : Rebekah Freilich
Download or read book Biomechanical Model of Transhumeral Prostheses written by Rebekah Freilich and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: It has been shown that the interface between the prosthetic socket and residual limb (S-RL) interface is an important factor in determining acceptance and outcomes of upper limb prostheses. [1] Among the most common complaint from amputees is that the prosthesis is uncomfortable due to developing skin irritation which is usually attributed to poor fit (Nielson 1990). In order to understand why skin irritations can and do occur it is imperative to examine the biomechanical properties of the S-RL interface. A primary reason behind the development of skin irritation is instability of the socket upon the residuum. Alley (2009) asserts that excess slip, axial rotation, and translation are the facets of instability that cause skin irritations due to friction and shear. Measuring the motion at the S-RL interface is not commonly done and therefore there is still no valid and reliable method to quantify the motion clinically. A licensed prosthesis fabricated a transhumeral residual limb model to fit within a typical, harness suspended transhumeral prosthesis. A custom testing apparatus was built to hold the residual limb model and prosthesis for testing. Eight infrared markers were placed on the prosthesis and residual limb model: Two each respectively on the "wrist", elbow axis, socket, and on the residual limb model. The model consists of 3 rigid segments, the forearm, socket, and residual limb. Pearson r correlations were done to see how strongly correlated the motion analysis calculated values were to the accepted values. All results were significant with a r
Book Synopsis Biomechanics of Lower Limb Prosthetics by : Mark R. Pitkin
Download or read book Biomechanics of Lower Limb Prosthetics written by Mark R. Pitkin and published by Springer. This book was released on 2009-10-14 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foreword from a Clinical Biomechanist, Applied Physiologist and Prosthetist teaching graduate students in Prosthetics & Orthotics. While there are many books on Biomechanics, arguably the quintessential science of limb prosthetics, none addresses the fundamental principles in sufficient detail and depth to be practically useful to the prosthetist, rehabilitation specialist or researcher. Dr. Pitkin’s monograph is an exemplary collection of theoretical principles from his research and o- ers, presented in its clinical and applied biomechanics form. The textbook provides an excellent overview of the many facets of lower limb prosthetic design and engineering for the ardent clinician researcher and student. The book delves into many of the basic concepts that are required knowledge for the clinician and the scientist to have as the foundation for their work. Dr. Pitkin has an e- quent manner in which he reflects on the history and literature to tell the storied evolution of prosthetic design . He takes the reader on a journey to consider his theories, which have substantive foundations to contemplate. By the end of chapter one, we have the basic h- tory and an appreciation for the rationale behind the “rolling joint ankle” with evidence to support his theoretical views.
Book Synopsis Prosthetic Designs for Restoring Human Limb Function by : William Craelius
Download or read book Prosthetic Designs for Restoring Human Limb Function written by William Craelius and published by Springer Nature. This book was released on 2021-07-30 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides a thorough introduction and overview of the design and engineering of state-of-the-art prosthetics and assistive technologies. Innovations in prosthetics are increasingly made by cross-disciplinary thinking, and the author introduces the application of biomedical, mechanical, electrical, computer, and materials engineering principles to the design of artificial limbs. Coverage includes the fundamentals of biomechanics, biomechanical modeling and measurements, the basics of anatomy and physiology of limb defects, and the historical development of prosthetic design. This book stimulates the innovative thinking necessary for advancing limb restoration, and will be essential reading for students, as well as researchers, professional engineers, and prosthetists involved in the design and manufacture of artificial limbs. Learning enhanced by the exercises, including physical modeling with MATLAB and Simulink; Includes appendices with relevant equations and parameters for reference; Introduction to the design and engineering of prosthetics and assistive technologies.
Book Synopsis Finite Elements in Biomechanics by : Richard H. Gallagher
Download or read book Finite Elements in Biomechanics written by Richard H. Gallagher and published by John Wiley & Sons. This book was released on 1982 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Rehabilitation Research and Development by :
Download or read book Journal of Rehabilitation Research and Development written by and published by . This book was released on 1995 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Element Method and Medical Imaging Techniques in Bone Biomechanics by : Rabeb Ben Kahla
Download or read book Finite Element Method and Medical Imaging Techniques in Bone Biomechanics written by Rabeb Ben Kahla and published by John Wiley & Sons. This book was released on 2020-01-02 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital models based on data from medical images have recently become widespread in the field of biomechanics. This book summarizes medical imaging techniques and processing procedures, both of which are necessary for creating bone models with finite element methods. Chapter 1 introduces the main principles and the application of the most commonly used medical imaging techniques. Chapter 2 describes the major methods and steps of medical image analysis and processing. Chapter 3 presents a brief review of recent studies on reconstructed finite element bone models, based on medical images. Finally, Chapter 4 reveals the digital results obtained for the main bone sites that have been targeted by finite element modeling in recent years.
Book Synopsis Development of a Finite Element Analysis Heat Transfer Model of a Trans-tibial Residual Limb and Prosthesis by : Jeffrey Thomas Peery
Download or read book Development of a Finite Element Analysis Heat Transfer Model of a Trans-tibial Residual Limb and Prosthesis written by Jeffrey Thomas Peery and published by . This book was released on 2003 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computer Modelling of the Residual Limb for the Development of Prosthetic Sockets and Liners with the Cellular Structure by : Vasja Plesec
Download or read book Computer Modelling of the Residual Limb for the Development of Prosthetic Sockets and Liners with the Cellular Structure written by Vasja Plesec and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of lower limb prostheses continues to rely primarily on manual methods, which are outdated and characterized by labour-intensive processes, lengthy time requirements, high costs, and a heavy reliance on the expertise of prosthetists. Achieving a satisfactory fit between the residual limb and socket remains a challenge, often leading to discomfort, pain, and potential wearer tissue damage. However, advancements in computer technology and numerical simulation offer an opportunity to predict stresses and strains experienced by the residual limb during prosthesis usage. This, in turn, aids in the development process by enhancing the design of the prosthetic socket and liner through virtual environments. In this dissertation we developed a generic numerical transtibial model to bridge the gap between clinical practice and numerical simulations. Biomechanically validated, this model generates outcomes applicable to a broader amputee population, facilitating comparative analysis of socket and liner designs and materials under different loading conditions. Furthermore, the dissertation explores the utilization of a 3D-printed socket manufactured through the cost-effective fused filament fabrication process, using polylactic acid filament, aiming to reduce the costs and establish a streamlined production process. The 3D-printed socket was evaluated within the virtual environment using the developed transtibial model. The numerical findings indicate that the 3D-printed socket can effectively withstand the loads encountered during the stages of prosthesis donning, single-leg stance, heel strike, and push-off, thereby presenting a viable alternative to the prevalent composite socket. Additionally, a cellular structure composed of a flexible thermoplastic elastomeric material is proposed as a prosthetic liner to enhance comfort by reducing contact pressure while maintaining the required stability. Numerical results indicate that by manipulating cellular parameters such as unit cell type and relative density of the structure, a customized response can be achieved. This customized response effectively reduces contact pressure for a given scenario without increasing displacement, thereby improving comfort while maintaining stability.
Book Synopsis Stress Distribution and Optimum Design of Polypropylene and Laminated Transtibial Prosthetic Sockets. FEM and Experimental Implementations by : Hayder Al-Shuka
Download or read book Stress Distribution and Optimum Design of Polypropylene and Laminated Transtibial Prosthetic Sockets. FEM and Experimental Implementations written by Hayder Al-Shuka and published by GRIN Verlag. This book was released on 2018-02-08 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Study from the year 2017 in the subject Medicine - Other, , language: English, abstract: This study presents analyses for below knee prosthetic socket of a human. Socket stress distribution is performed on three types of socket, polypropylene (5mm), polypropylene (3mm) and a standard laminate (3mm) sockets to determine the stresses path through the prosthetic socket during the gait cycle. It is found that heel strike phase is the critical phase. The stresses increase at the socket base while the maximum deflection is maximum at the patellar region of the socket. This work is achieved by finite element program, ANSYS. The development of design specifications of a below the knee prosthetic socket is presented in this study for successful ambulation and comfort. Seven different design models are created by changing the socket wall thickness and the material. Polypropylene socket gives the best results with regard to the allowable deflection for the regions of the pressure relief areas of the stump. The effect of varying the modulus of elasticity on the polypropylene socket is considered in this study. Three models are analyzed with different tensile creep moduli during different periods. It is found that the polypropylene socket will enlarge in size with time. An experimental study is conducted to compare the strength of five prosthetic sockets made of different materials. Compression, three-point flexural and tensile tests are implemented by the Testometric machine. The laminate sockets have larger compressive stiffness than polypropylene while polypropylene has larger flexural stiffness than the tested laminates except for socket No.5.
Book Synopsis Predicting Pressure Distribution Between Transfemoral Prosthetic Socket and Residual Limb Using Finite Element Analysis by : Rajesh Surapureddy
Download or read book Predicting Pressure Distribution Between Transfemoral Prosthetic Socket and Residual Limb Using Finite Element Analysis written by Rajesh Surapureddy and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a non-linear Finite Element (FE) model was created and analyzed to determine the pressure distribution between the residual limb and the prosthetic socket of a transfemoral amputee. This analysis was performed in an attempt to develop a process allowing healthcare providers and engineers to simulate the fit and comfort of transfemoral prosthetics to reduce the number of re-fittings needed for the amputees. The analysis considered the effects of interference due to insertion of the limb into the prosthesis, referred to as donning, and also the effects due to the body weight of the amputee. A non-linear finite element static implicit analysis method was utilized. This analysis implemented multiple finite element techniques, including geometric non-linearity due to large deflections, non-linear contacts due to friction between the contact surfaces of the residual limb and the socket, and non-linear hyper-elastic material properties for the residual limb's soft tissue. This non-linear static analysis was carried out in two time-steps. The first step involved solving the interference fit analysis to study the pre-stresses developed due to the effect of donning. The donning process results in soft tissue displacement to accommodate the internal geometry of the prosthesis. In the second load application time-step, an additional load of half the person's body weight was applied to the femur. The maximum normal stress (contact pressure) of 84 kPa was observed due to the combined effect of the donning procedure and body weight application, comparable to the studies performed by other researchers. The procedure developed through this work can be used by future researchers and prosthetic designers in understanding how to better design transfemoral prosthesis.
Book Synopsis A Synergistic Approach to Transtibial Socket Interface Mechanics by : Amy Lorraine Lenz
Download or read book A Synergistic Approach to Transtibial Socket Interface Mechanics written by Amy Lorraine Lenz and published by . This book was released on 2017 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
