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Stress-strain analysis of lower limb prosthetic
Musilová, Kateřina ; Fuis, Vladimír (referee) ; Návrat, Tomáš (advisor)
This master thesis deals with lower-limb prosthesis. The aim of the first part of this work is stress-strain analysis of trans-tibial prosthesis, which is understand without prosthetic socket and the foam prosthetic feet. Analysis is made using finite element method in ANSYS Workbench 12.0 software. For the purpose of setting up the computational model it is necessary to make few partial models. Model of geometry of the prosthesis is made in SolidWorks 2009. Based on the outputs of stress-strain analysis and the results evaluation, the critical component is chosen and this one is evaluated according to limite state for fatigue. The algorithm of evaluation of named component in the state of high cycle fatigue is discussed in the second part of this thesis.
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Design of robotic lower limb prosthesis
Remiš, Matúš ; Kočiš, Petr (referee) ; Szabari, Mikuláš (advisor)
The subject of the bachelor thesis is to design powered ankle-foot prothesis. Theoretical part aims on gait analysis, research in the field of prosthetics and an overview of commercially available prostheses. In the practical part, after the multicriteria analysis of design variants, technical calculations of the parameters of selected components follow, supplemented by economic evaluation and drawing documentation.
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Leg prothesis
Bulva, Ondřej ; Harabiš, Vratislav (referee) ; Balogh, Jaroslav (advisor)
This thesis deals with the current state of development of active lower limb prostheses and focuses mainly on own design of active prostheses. The introduction deals with the anatomy of lower limb and briefly describes the walk cycle. In other chapters are summarized amputation techniques in the lower limb, followed by a description of the allocation of prostheses according to the level of amputation, which were described in earlier chapters. The thesis also deals with the division of prostheses according to the patient's activity level and briefly describes the structural differences in these individual cases. Chapter describing the actual development in the field of active prostheses initiates part dealing with the detailed description of the part of the prosthesis. The following chapters deal with the design and implementation of a prototype of active transfemoral prosthesis. The penultimate chapter deals with the software description of all parts of the prosthesis. This chapter is followed by an evaluation of the achieved results.
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Design of stend for testing of prosthetic feet
Švachová, Michaela ; Paloušek, David (referee) ; Koutný, Daniel (advisor)
The Bachelor's Thesis first reviews the general body of knowledge related to biomechanics of gait. The paper also provides definition and classification of a lower leg prosthesis together with a review of the most widely used transtibial prosthesis testing methods. The project also provides description and loading conditions of the main d ynamical a nd s tatical t est o f a lower leg p rosthesis a cording t o E N Č SN 10 328. The paper starts with analyzing the problem and continues with construction solutions complaint with testing requirements. The main output of the project is a 3D model of a test stand design with pneumatic actuator created in Inventor 2013 with related calculations in MathCad 14. The project includes also an assembly drawing, drawings of the welded pieces and drawings of other components.
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Design of Transtibial Posthesis With Use of Additive Manufacturing Technology.
Kopecký, Martin ; Náhlík, Luboš (referee) ; Koutný, Daniel (advisor)
The thesis deals with the design of a transtibial prosthesis by additive manufacturing technology. Based on walking biomechanics and the current situation of knowledge a prosthetic foot has been designed for a patient with low level of physical activity. Furthermore, the thesis describes the design of an individual socket for the patient. The socket has been designed by reverse engineer procedure based on the three-dimensional geometry of patient´s stump obtained by 3D scanning. Testing samples of the foot and the socket have been made for the check of functionality of both the devices and then subjected to mechanical tests in accordance to the methodology regulation ISO 10328. Finally, the thesis depicts the FDM technology used for the production of functional samples of the designed devices; assembly of modular transtibial prosthesis and its testing by the patient.
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Kinematic analysis of movement of cyclist with transtibial prosthesis.
Stoklásek, Pavel ; Mazůrek, Ivan (referee) ; Paloušek, David (advisor)
This work is aiming to the area of biomechanics and deals with the experimental finding of appropriate kinematic ratios of crank mechanism on racing bicycle and transtibial prosthesis of racing cyclists with an assessment of kinematic ratios depending on the overall athletic performance. The primary aim of the work is investigation of the impact of inappropriate existing kinematic ratios of leg prosthesis and crank mechanism on the kinematics and dynamics of top athlete. The work presents experiments that proposes find out appropriate kinematic ratio of the length of kinematic members and possibility to improve overall athletic performance. The measurement is supplemented about cycling analysis of racer realized via cameras tracking system and measuring muscle activity by EMG. The work also includes a description of impact of various factors on cycling.
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Transtibial prosthesis for recreational in-line skating
Sabo, Karol ; Dočkal, Aleš (referee) ; Koutný, Daniel (advisor)
The master thesis deals with the engineering design and realization of a transtibial prosthesis for recreational in-line skating. The first part of thesis summarize background information about skating. The next part analyzes the kinematics of ankle joint based on gained information and own measurement by Motion capture method in Kinovea software. The thesis continues with realization of more versions of prosthesis followed by testing with patient. Finally, the thesis discus measured data.
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Design of robotic lower limb prosthesis
Remiš, Matúš ; Kočiš, Petr (referee) ; Szabari, Mikuláš (advisor)
The subject of the bachelor thesis is to design powered ankle-foot prothesis. Theoretical part aims on gait analysis, research in the field of prosthetics and an overview of commercially available prostheses. In the practical part, after the multicriteria analysis of design variants, technical calculations of the parameters of selected components follow, supplemented by economic evaluation and drawing documentation.
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