Download or read book The Design of a Lower Limb Alignment Device written by Paul Flechner and published by . This book was released on 1977 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of a Sensor Based Data Collection System for Lower Limb Prosthetic Gait Analysis written by Thomas Campbell Bulea and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The primary function of a lower limb prosthetic device is restoration of ambulation. Proper alignment - the correct spatial relationship between artificial sockets and the natural limb - is paramount to attain an efficient, comfortable gait with a desired loading pattern on residual leg. Despite advances in prosthetic device design, the clinical alignment process remains subjective and nonsystematic due to a lack of an inexpensive, effective method quantification of the amputee gait. Gait laboratories provide accurate data for gait monitoring; however cost and lab availability prohibit most patients from this benefit. Economic concerns aside, gait labs do not fill the void of information needed to quantify the alignment process. Observation time and environment are too limited to amass useful information for prosthetic alignment improvement. A more logical and systematic approach to clinical alignment requires the quantification of amputee gait before and after adjustments made by the prosthetist. To complete this quantification must span extended periods of time and terrain. Thus, there is patent need for a portable, reliable, and cost effective motion capture system. This project proposes a design for such a system. Comprised of body (prosthetic) mounted inertial sensors - accelerometers and gyroscopes - the system is designed to track kinematics of the limbs during a walking cycle. The goal of this work is to prove the feasibility of motion capture system using these body mounted sensors. The effectiveness of the system will be judged as its ability to capture planar motion using two (2) accelerometers and one gyroscope mounted on an aluminum bar (simulating a prosthetic device). The design of system was formulated based on an extensive literature review pertaining to body mounted sensor systems. The rigid structure of the prostheses gives a prosthetic mounted sensor system distinct advantage over a body mounted system in terms of inverse kinematic calculations.

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.

Download or read book A Lower Limb Prosthesis with Active Alignment for Reduced Limb Loading written by Andrew LaPre and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, the growing field of robotics has created new possibilities in lower limb prostheses. The focus of these new prostheses has been replicating the dynamics of the lost limb in order to restore gait of individuals with lower limb amputations to healthy norms. This places demanding loads on the residual limb. Compensation by the rest of body is high, causes overloading of intact joints and can lead to deterioration of mobility and overall health. Abnormalities remain present in the person's gait, stemming from the loading of soft tissue and the altered anatomy of the affected limb. In this dissertation, an experimental prosthesis is developed with systematic, simulation based techniques. Kinematics and kinetics of the prosthesis design are altered in order to actively realign the limb in relation to the center of pressure during stance, allowing positive power to be generated by the prosthesis while actively reducing the magnitude of the sagittal moment transferred to the residual limb. Initial findings show that during walking with the experimental device compared to a daily use prosthesis, peak pressures on the residual limb are lowered by over 10% while maintaining walking speed.

Download or read book Personalized Hip and Knee Joint Replacement written by Charles Rivière and published by Springer Nature. This book was released on 2020-06-30 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book describes and illustrates the surgical techniques, implants, and technologies used for the purpose of personalized implantation of hip and knee components. This new and flourishing treatment philosophy offers important benefits over conventional systematic techniques, including component positioning appropriate to individual anatomy, improved surgical reproducibility and prosthetic performance, and a reduction in complications. The techniques described in the book aim to reproduce patients’ native anatomy and physiological joint laxity, thereby improving the prosthetic hip/knee kinematics and functional outcomes in the quest of the forgotten joint. They include kinematically aligned total knee/total hip arthroplasty, partial knee replacement, and hip resurfacing. The relevance of available and emerging technological tools for these personalized approaches is also explained, with coverage of, for example, robotics, computer-assisted surgery, and augmented reality. Contributions from surgeons who are considered world leaders in diverse fields of this novel surgical philosophy make this open access book will invaluable to a wide readership, from trainees at all levels to consultants practicing lower limb surgery

Download or read book The Study of Alignment of Lower Limb Protheses written by Saeed Zahedi and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of Walking assistive Device on Lower Limb with Fall preventing Mechanism written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Human machine centered Design and Actuation of Lower Limb Prosthetic Systems written by Philipp Beckerle and published by . This book was released on 2014 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Force Transducer for Assisting with Lower Limb Alignment written by Tracie D. Gusdal and published by . This book was released on 2000 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The study of alignment of lower limb prostheses written by Saeed Zahedi and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Design of an Adjustable Device for the Fitting of Lower Extremity Braces written by Peter Joseph Luchini and published by . This book was released on 1959 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Socket Axis Determination in Lower Limb Prosthetic Alignment written by C. R. Purdey and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 22 (thesis year 1977) a total of 10,658 theses titles from 28 Canadian and 227 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 22 reports theses submitted in 1977, on occasion, certain universities do report theses submitted in previous years but not reported at the time.

Download or read book Study of Alignment in Lower Limb Prostheses written by M. S. Zahedi and published by . This book was released on 1983 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Dynamics of Human Locomotion and Co design of Lower Limb Assistive Devices written by Jesse van den Kieboom and published by . This book was released on 2014 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of an Easy Method for Documentation of Lower Limb Prosthetic Alignment written by Mohammad Fauzan Mohammad and published by . This book was released on 2013 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of a Novel Task based Knee Rehabilitation Exoskeleton Device with Assist as needed Control Strategy written by Visharath Adhikari and published by . This book was released on 2017 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis aims to design a novel task based knee rehabilitation exoskeleton device through kinematic synthesis. In contrast to prevailing research efforts, which attempt to mimic the human limb by assigning each human joint with an equivalent exoskeleton joint (e.g. a hinge joint for the elbow and knee), this thesis provides an alternative systematic approach for the design of exoskeletons to assist the complex 3D motions of the human Knee. With this method, it is not necessary to know the anatomy of the targeted limb, but rather to define the motion of the exoskeleton segments based on its point of attachment to the limb. Good alignment is often difficult and the distances between joints must be adjusted to accommodate the variety of human size. Furthermore, attempting to align each robotic joint axis with its human counterpart assumes that the position of the axis can be accurately known, and that such a fixed axis exists for the range of motion of the joint or set of joints, which is not always the case. In human- exoskeletons synergy, especially in industrial settings and rehabilitation applications, due to the repetitive and strenuous nature of the task, the fit, comfort and usability of these exoskeletons are important for the safety of the user and for the automation of the task. Improper fitting may lead an exoskeleton to move in a way that exceeds the range of movement of the human body and tear muscle ligaments or dislocate joints. In this thesis, to study the motion of the desired clinical trajectories of the human knee, the state-of-the-art of motion capture and data analysis techniques are utilized. The collected experimental kinematic data is used as an input to the kinematic synthesis. Parallel mechanisms with single degree-of-freedom (DOF) are considered to generate the complex 3D motions of the lower leg. An exact workspace synthesis approach is utilized, in which, the parameterized forward kinematics equations of each serial chain are to be converted to implicit equations via elimination. The implicit description of the workspace is made to be a function of the structural parameters of the serial chain, making it easy to relate those parameters to the motion capture data. A prototype of the mechanism has been built using 3D printing technology. And an Electromyography (EMG) signals and Force sensing resistors (FSR) are utilized to implement an assist as needed controller. The EMG signal is captured from the user leg and force sensing resistors (FSR) are applied at the attachment point of the exoskeleton and the leg, this helps to get the amount of force applied by the exoskeleton to the leg as well as for recovery tracking. The assist as needed controller eliminates the need of constant supervision, and hence saves time and reduces cost of the rehabilitation process.