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Journal articles on the topic 'Powered Prosthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Gretsch, Kendall F., Henry D. Lather, Kranti V. Peddada, Corey R. Deeken, Lindley B. Wall, and Charles A. Goldfarb. "Development of novel 3D-printed robotic prosthetic for transradial amputees." Prosthetics and Orthotics International 40, no. 3 (2015): 400–403. http://dx.doi.org/10.1177/0309364615579317.

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Background and aim: Upper extremity myoelectric prostheses are expensive. The Robohand demonstrated that three-dimensional printing reduces the cost of a prosthetic extremity. The goal of this project was to develop a novel, inexpensive three-dimensional printed prosthesis to address limitations of the Robohand. Technique: The prosthesis was designed for patients with transradial limb amputation. It is shoulder-controlled and externally powered with an anthropomorphic terminal device. The user can open and close all five fingers, and move the thumb independently. The estimated cost is US$300.

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LEMOYNE, ROBERT. "ADVANCES REGARDING POWERED PROSTHESIS FOR TRANSTIBIAL AMPUTATION." Journal of Mechanics in Medicine and Biology 15, no. 01 (2015): 1530001. http://dx.doi.org/10.1142/s021951941530001x.

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The necessity for developing advanced prostheses are apparent in light of projections that the forecast for the number of people enduring amputation will double by the year 2050. The transtibial powered prosthesis that enables positive mechanical work about the ankle during the powered plantar flexion aspect of stance phase constitutes a paradigm shift in available transtibial prostheses. The objective of the review is to advocate the state of the art regarding the transtibial powered prosthesis. The historic origins of the prosthesis and motivations for amputation are clarified. The phases of

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Datta, D., and V. Ibbotson. "Powered prosthetic hands in very young children." Prosthetics and Orthotics International 22, no. 2 (1998): 150–54. http://dx.doi.org/10.3109/03093649809164477.

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Myoelectric prostheses are generally not provided in the United Kingdom for children before the age of 3 1/2 years. Following the introduction of a smaller sized electric hand in the United Kingdom in 1993 the authors decided to introduce electrically powered hands for a group of congenital upper limb deficient children at a much younger age compared to normal practice. Eleven children were introduced to powered prosthetic hands at an averrtge age of 20.6 months. At the review camed out for the purpose of this paper, 72.7% of these children appeared to be successfully using these powered prost

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Russell Esposito, Elizabeth, Jennifer M. Aldridge Whitehead, and Jason M. Wilken. "Step-to-step transition work during level and inclined walking using passive and powered ankle–foot prostheses." Prosthetics and Orthotics International 40, no. 3 (2015): 311–19. http://dx.doi.org/10.1177/0309364614564021.

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Background: Individuals with leg amputations who use passive prostheses have greater metabolic demands than non-amputees likely due to limited net positive work compared to a biological ankle. New powered ankle–foot prostheses can perform net positive mechanical work to aid push-off capabilities, which may reduce metabolic demands. Objectives: Compare step-to-step transition work and metabolic demand during level and inclined walking using passive and powered ankle-foot prostheses. Study Design: Repeated measures. Methods: Six individuals with transtibial amputation and six able-bodied control

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Cuellar, Juan Sebastian, Gerwin Smit, Paul Breedveld, Amir Abbas Zadpoor, and Dick Plettenburg. "Functional evaluation of a non-assembly 3D-printed hand prosthesis." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 233, no. 11 (2019): 1122–31. http://dx.doi.org/10.1177/0954411919874523.

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In developing countries, the access of amputees to prosthetic devices is very limited. In a way to increase accessibility of prosthetic hands, we have recently developed a new approach for the design and 3D printing of non-assembly active hand prostheses using inexpensive 3D printers working on the basis of material extrusion technology. This article describes the design of our novel 3D-printed hand prosthesis and also shows the mechanical and functional evaluation in view of its future use in developing countries. We have fabricated a hand prosthesis using 3D printing technology and a non-ass

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Wong, Sean, and Chloe Gui. "Brain controlled robotic arms - advancements in prosthetic technology." University of Western Ontario Medical Journal 87, no. 2 (2019): 59–61. http://dx.doi.org/10.5206/uwomj.v87i2.1161.

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A prosthesis is a medical tool used to replace a missing body part. They are designed to restore both functionality and form to the patient user. There has been a rich history in the field or prosthetics extending back centuries. However, recent advancements have led to the development of more sophisticated and innovative prosthetic technology, such as the brain controlled myoelectric prosthetic limb. While current prosthesis options such as the passive prosthetic and body-powered prosthetic have their respective limitations, the myoelectric prosthetic limb offers an unheralded level of functi

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Millstein, S. G., H. Heger, and G. A. Hunter. "Prosthetic Use in Adult Upper Limb Amputees: A Comparison of the Body Powered and Electrically Powered Prostheses." Prosthetics and Orthotics International 10, no. 1 (1986): 27–34. http://dx.doi.org/10.3109/03093648609103076.

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Three hundred and fourteen adult upper limb amputees were reviewed retrospectively at the Ontario Workers' Compensation Board. A questionnaire was used to evaluate the use of body and electrically powered prostheses. Follow-up ranged from 1 to 49 years with a mean of 15 years. Results indicated that complete or useful acceptance of an electrically powered prosthesis was reported by 69 of 83 amputees (83%); 199 of 291 amputees (68%) used the cable operated hook, 57 of 291 (20%) used the cable operated hand and 40 of 83 (48%) used the cosmetic prosthesis. The majority of amputees used more than

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Semasinghe, C. L., R. K. P. S. Ranaweera, J. L. B. Prasanna, H. M. Kandamby, D. G. K. Madusanka, and R. A. R. C. Gopura. "HyPro: A Multi-DoF Hybrid-Powered Transradial Robotic Prosthesis." Journal of Robotics 2018 (2018): 1–15. http://dx.doi.org/10.1155/2018/8491073.

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This paper proposes a multi-DoF hybrid-powered transradial robotic prosthesis, named HyPro. The HyPro consists of two prosthetic units: hand and wrist that can achieve five grasping patterns such as power grasp, tip grasp, lateral grasp, hook grasp, and index point. It is an underactuated device with 15 degrees of freedom. A hybrid powering concept is proposed and implemented on hand unit of HyPro where the key focus is on restoration of grasp functions of biological hand. A novel underactuated mechanism is introduced to achieve the required hand preshaping for a given grasping pattern using e

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Montgomery, Jana R., and Alena M. Grabowski. "Use of a powered ankle–foot prosthesis reduces the metabolic cost of uphill walking and improves leg work symmetry in people with transtibial amputations." Journal of The Royal Society Interface 15, no. 145 (2018): 20180442. http://dx.doi.org/10.1098/rsif.2018.0442.

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People with transtibial amputations (TTAs) who use a powered ankle–foot prosthesis have equivalent metabolic costs and step-to-step transition work for level-ground walking over a range of speeds compared to non-amputees. The effects of using a powered compared to passive-elastic prosthesis for sloped walking are unknown. We sought to understand how the use of passive-elastic compared to powered ankle–foot prostheses affect metabolic cost and step-to-step transition work during sloped walking. Ten people (six M, four F) with TTAs walked 1.25 m s −1 at 0°, ±3°, ±6° and ±9° using their own passi

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Cowley, Jeffrey, Linda Resnik, Jason Wilken, Lisa Smurr Walters, and Deanna Gates. "Movement quality of conventional prostheses and the DEKA Arm during everyday tasks." Prosthetics and Orthotics International 41, no. 1 (2016): 33–40. http://dx.doi.org/10.1177/0309364616631348.

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Background:Conventional prosthetic devices fail to restore the function and characteristic movement quality of the upper limb. The DEKA Arm is a new, advanced prosthesis featuring a compound, powered wrist and multiple grip configurations.Objectives:The purpose of this study was to determine if the DEKA Arm improved the movement quality of upper limb prosthesis users compared to conventional prostheses.Study design:Case series.Methods:Three people with transradial amputation completed tasks of daily life with their conventional prosthesis and with the DEKA Arm. A total of 10 healthy controls c

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Trejo-Letechipia, Manuel Alejandro, David Arturo Rodriguez-Sanchez, Reyna Berenice González-González, et al. "Design and Manufacturing of a Body-Powered Hook with Force Regulation System and Composite-Based Nanomaterials." Applied Sciences 11, no. 9 (2021): 4225. http://dx.doi.org/10.3390/app11094225.

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New developments in upper limb prostheses are based almost exclusively on myoelectric technology, which prioritizes the needs and infrastructure of developed countries. However, 80% of people with disabilities living in developing countries cannot afford these devices. The main needs of users in developing countries were identified through the I-Corps program, to select the ideal prosthesis type and generate a list of design requirements to improve prosthetic performance. A body-powered hook was developed through a four-stage process: conceptual design, detailed design, design for manufacturin

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Au, Samuel, and Hugh Herr. "Powered ankle-foot prosthesis." IEEE Robotics & Automation Magazine 15, no. 3 (2008): 52–59. http://dx.doi.org/10.1109/mra.2008.927697.

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Bhakta, Krishan, Jonathan Camargo, Pratik Kunapuli, Lee Childers, and Aaron Young. "Impedance Control Strategies for Enhancing Sloped and Level Walking Capabilities for Individuals with Transfemoral Amputation Using a Powered Multi-Joint Prosthesis." Military Medicine 185, Supplement_1 (2019): 490–99. http://dx.doi.org/10.1093/milmed/usz229.

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ABSTRACT Introduction Powered prostheses are a promising new technology that may help people with lower-limb loss improve their ability to perform locomotion tasks. Developing active prostheses requires robust design methodologies and intelligent controllers to appropriately provide assistance to the user for varied tasks in different environments. The purpose of this study was to validate an impedance control strategy for a powered knee and ankle prosthesis using an embedded sensor suite of encoders and a six-axis load cell that would aid an individual in performing common locomotion tasks, s

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Eilenberg, Michael F., Jiun-Yih Kuan, and Hugh Herr. "Development and Evaluation of a Powered Artificial Gastrocnemius for Transtibial Amputee Gait." Journal of Robotics 2018 (2018): 1–15. http://dx.doi.org/10.1155/2018/5951965.

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Existing robotic transtibial prostheses provide only ankle joint actuation and do not restore biarticular function of the gastrocnemius muscle. This paper presents the first powered biarticular transtibial prosthesis, which is a combination of a commercial powered ankle-foot prosthesis and a motorized robotic knee orthosis. The orthosis is controlled to emulate the human gastrocnemius based on neuromuscular models of matched nonamputees. Together with the ankle-foot prosthesis, the devices provide biarticular actuation. We evaluate differences between this biarticular condition and a monoartic

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Ayub, Rafi, Dario Villarreal, Robert D. Gregg, and Fan Gao. "Evaluation of transradial body-powered prostheses using a robotic simulator." Prosthetics and Orthotics International 41, no. 2 (2016): 194–200. http://dx.doi.org/10.1177/0309364616650077.

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Background: Transradial body-powered prostheses are extensively used by upper-limb amputees. This prosthesis requires large muscle forces and great concentration by the patient, often leading to discomfort, muscle fatigue, and skin breakdown, limiting the capacity of the amputee to conduct daily activities. Since body-powered prostheses are commonplace, understanding their optimal operation to mitigate these drawbacks would be clinically meaningful. Objectives: To find the optimal operation of the prosthesis where the activation force is minimized and the grip force is maximized. Study design:

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Hichert, Mona, Alistair N. Vardy, and Dick Plettenburg. "Fatigue-free operation of most body-powered prostheses not feasible for majority of users with trans-radial deficiency." Prosthetics and Orthotics International 42, no. 1 (2017): 84–92. http://dx.doi.org/10.1177/0309364617708651.

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Background: Body-powered prostheses require cable operation forces between 33 and 131 N. The accepted upper limit for fatigue-free long-duration operation is 20% of a users’ maximum cable operation force. However, no information is available on users’ maximum force. Objectives: To quantify users’ maximum cable operation force and to relate this to the fatigue-free force range for the use of body-powered prostheses. Study design: Experimental trial. Methods: In total, 23 subjects with trans-radial deficiencies used a bypass prosthesis to exert maximum cable force three times during 3 s and repo

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Zuniga, Jorge M., Adam M. Carson, Jean M. Peck, Thomas Kalina, Rakesh M. Srivastava, and Kirk Peck. "The development of a low-cost three-dimensional printed shoulder, arm, and hand prostheses for children." Prosthetics and Orthotics International 41, no. 2 (2016): 205–9. http://dx.doi.org/10.1177/0309364616640947.

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Background and aim: The prosthetic options for higher level amputees are limited and costly. Advancements in computer-aided design programs and three-dimensional printing offer the possibility of designing and manufacturing transitional prostheses at very low cost. The aim of this project was to describe an inexpensive three-dimensional printed mechanical shoulder prosthesis to assist a pre-selected subject in performing bi-manual activities. Technique: The main function of the body-powered, manually adjusted three-dimensional printed shoulder prosthesis is to provide a cost-effective, highly

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Cherelle, Pierre, Karen Junius, Victor Grosu, Heidi Cuypers, Bram Vanderborght, and Dirk Lefeber. "The AMP-Foot 2.1 : actuator design, control and experiments with an amputee." Robotica 32, no. 8 (2014): 1347–61. http://dx.doi.org/10.1017/s026357471400229x.

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SUMMARYThe Ankle Mimicking Prosthetic (AMP-) Foot 2 is a new energy efficient, powered transtibial prosthesis mimicking intact ankle behavior. The author's research is focused on the use of a low power actuator which stores energy in springs during the complete stance phase. At push-off, this energy can be released hereby providing propulsion forces and torques to the amputee. With the use of the so-called catapult actuator, the size and weight of the drive can be decreased compared to state-of-the-art powered prostheses, while still providing the full power necessary for walking.In this artic

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Liu, Ming, Philip Datseris, and He Helen Huang. "A Prototype for Smart Prosthetic Legs-Analysis and Mechanical Design." Advanced Materials Research 403-408 (November 2011): 1999–2006. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.1999.

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In this paper, we designed a prototype of powered above-knee prosthesis. Compared with other prototypes available in the literature, our designed prosthetic leg employs a redundant actuator concept to overcome the challenge faced by the single-motor transmission systems. The redundant actuator also enables the prosthesis to be partially functional when the prosthesis loses power. Finally, in order to provide optimal control parameters for designed above-knee prosthesis to perform a smooth level-ground walking task, an inverse dynamic model based on Kane’s method is constructed.

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Pitkin, Mark, Charles Cassidy, Maxim A. Shevtsov, et al. "Recent Progress in Animal Studies of the Skin- and Bone-integrated Pylon With Deep Porosity for Bone-Anchored Limb Prosthetics With and Without Neural Interface." Military Medicine 186, Supplement_1 (2021): 688–95. http://dx.doi.org/10.1093/milmed/usaa445.

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ABSTRACT Introduction The three major unresolved problems in bone-anchored limb prosthetics are stable, infection-free integration of skin with a percutaneous bone implant, robust skeletal fixation between the implant and host bone, and a secure interface of sensory nerves and muscles with a prosthesis for the intuitive bidirectional prosthetic control. Here we review results of our completed work and report on recent progress. Materials and Methods Eight female adult cats received skin- and bone-integrated pylon (SBIP) and eight male adult cats received SBIP-peripheral neural interface (PNI)

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Swartz, Ashley Quinn, Kristi Turner, Laura Miller, and Todd Kuiken. "Custom, rapid prototype thumb prosthesis for partial-hand amputation: A case report." Prosthetics and Orthotics International 42, no. 2 (2017): 187–90. http://dx.doi.org/10.1177/0309364617706421.

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Background: Due to advancements in three-dimensional printing, custom-made prostheses are becoming more viable options for persons with difficult cases of prosthetic management. The purpose of this article was to develop a custom voluntary-closing, body-powered thumb mechanism for a partial-hand amputee who had amputations of the index finger and thumb on the left, non-dominant hand. Case description and methods: The prosthesis model was manufactured using rapid prototype technology and was developed to provide greater force and functionality, and to decrease overall size compared to tradition

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Debta, Sanghamitra, and Kaushik Kumar. "Design and Analysis of Powered Ankle-Foot Mechanism Using Hydraulic System." Applied Mechanics and Materials 877 (February 2018): 384–90. http://dx.doi.org/10.4028/www.scientific.net/amm.877.384.

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Currently available foot prosthesis model are more than 50 in number. In order to perform some extraordinary errands, for example, strolling, moving, cycling, golfing, swimming, snow skiing or running they are employed. Many are waterproof and made of lightweight materials, for example, plastic, metal combinations and carbon-fiber composites. Prosthetic feet can be essential (unmoving), explained (moving in at least one bearings), or element reaction (putting away and returning vitality when strolling, giving a feeling of "pushing off," much like the human foot). However there are certain prob

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Alleva, Stefano, Michele Gabrio Antonelli, Pierluigi Beomonte Zobel, and Francesco Durante. "Biomechanical Design and Prototyping of a Powered Ankle-Foot Prosthesis." Materials 13, no. 24 (2020): 5806. http://dx.doi.org/10.3390/ma13245806.

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Powered ankle-foot prostheses for walking often have limitations in the range of motion and in push-off power, if compared to a lower limb of a healthy person. A new design of a powered ankle-foot prosthesis is proposed to obtain a wide range of motion and an adequate power for a push-off step. The design methodology for this prosthesis has three points. In the first one, a dimensionless kinematic model of the lower limb in the sagittal plane is built, through an experimental campaign with healthy subjects, to calculate the angles of lower limb during the gait. In the second point a multibody

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Biddiss, Elaine A., and Tom T. Chau. "Upper limb prosthesis use and abandonment: A survey of the last 25 years." Prosthetics and Orthotics International 31, no. 3 (2007): 236–57. http://dx.doi.org/10.1080/03093640600994581.

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This review presents an analytical and comparative survey of upper limb prosthesis acceptance and abandonment as documented over the past 25 years, detailing areas of consumer dissatisfaction and ongoing technological advancements. English-language articles were identified in a search of Ovid, PubMed, and ISI Web of Science (1980 until February 2006) for key words upper limb and prosthesis. Articles focused on upper limb prostheses and addressing: (i) Factors associated with abandonment; (ii) Rejection rates; (iii) Functional analyses and patterns of wear; and (iv) Consumer satisfaction, were

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Mendez, Joel, Sarah Hood, Andy Gunnel, and Tommaso Lenzi. "Powered knee and ankle prosthesis with indirect volitional swing control enables level-ground walking and crossing over obstacles." Science Robotics 5, no. 44 (2020): eaba6635. http://dx.doi.org/10.1126/scirobotics.aba6635.

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Powered prostheses aim to mimic the missing biological limb with controllers that are finely tuned to replicate the nominal gait pattern of non-amputee individuals. Unfortunately, this control approach poses a problem with real-world ambulation, which includes tasks such as crossing over obstacles, where the prosthesis trajectory must be modified to provide adequate foot clearance and ensure timely foot placement. Here, we show an indirect volitional control approach that enables prosthesis users to walk at different speeds while smoothly and continuously crossing over obstacles of different s

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Gao, Fan, Johanan Rodriguez, and Susan Kapp. "An experimental apparatus to simulate body-powered prosthetic usage: Development and preliminary evaluation." Prosthetics and Orthotics International 40, no. 3 (2015): 404–8. http://dx.doi.org/10.1177/0309364615574166.

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Background and aim:Harness fitting in the body-powered prosthesis remains more art than science due to a lack of consistent and quantitative evaluation. The aim of this study was to develop a mechanical, human-body-shaped apparatus to simulate body-powered upper limb prosthetic usage and evaluate its capability of quantitative examination of harness configuration.Technique:The apparatus was built upon a torso of a wooden mannequin and integrated major mechanical joints to simulate terminal device operation. Sensors were used to register cable tension, cable excursion, and grip force simultaneo

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Shibuya, Masaki, Kengo Ohnishi, and Isamu Kajitani. "Networked Multimodal Sensor Control of Powered 2-DOF Wrist and Hand." Journal of Robotics 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/7862178.

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A prosthetic limb control system to operate powered 2-DOF wrist and 1-DOF hand with environmental information, myoelectric signal, and forearm posture signal is composed and evaluated. Our concept model on fusing biosignal and environmental information for easier manipulation with upper limb prosthesis is assembled utilizing networking software and prosthetic component interlink platform. The target is to enhance the controllability of the powered wrist’s orientation by processing the information to derive the joint movement in a physiologically appropriate manner. We applied a manipulative sk

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Haverkate, Liz, Gerwin Smit, and Dick H. Plettenburg. "Assessment of body-powered upper limb prostheses by able-bodied subjects, using the Box and Blocks Test and the Nine-Hole Peg Test." Prosthetics and Orthotics International 40, no. 1 (2014): 109–16. http://dx.doi.org/10.1177/0309364614554030.

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Background: The functional performance of currently available body-powered prostheses is unknown. Objective: The goal of this study was to objectively assess and compare the functional performance of three commonly used body-powered upper limb terminal devices. Study design: Experimental trial. Methods: A total of 21 able-bodied subjects ( n = 21, age = 22 ± 2) tested three different terminal devices: TRS voluntary closing Hook Grip 2S, Otto Bock voluntary opening hand and Hosmer Model 5XA hook, using a prosthesis simulator. All subjects used each terminal device nine times in two functional t

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Krausz, Nili E., Blair H. Hu, and Levi J. Hargrove. "Subject- and Environment-Based Sensor Variability for Wearable Lower-Limb Assistive Devices." Sensors 19, no. 22 (2019): 4887. http://dx.doi.org/10.3390/s19224887.

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Significant research effort has gone towards the development of powered lower limb prostheses that control power during gait. These devices use forward prediction based on electromyography (EMG), kinetics and kinematics to command the prosthesis which locomotion activity is desired. Unfortunately these predictions can have substantial errors, which can potentially lead to trips or falls. It is hypothesized that one reason for the significant prediction errors in the current control systems for powered lower-limb prostheses is due to the inter- and intra-subject variability of the data sources

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Hashim, Nur Afiqah, Nasrul Anuar Abd Razak, Noor Azuan Abu Osman, and Hossein Gholizadeh. "Improvement on upper limb body-powered prostheses (1921–2016): A systematic review." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 232, no. 1 (2017): 3–11. http://dx.doi.org/10.1177/0954411917744585.

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Body-powered prostheses are known for their advantages of cost, reliability, training period, maintenance, and proprioceptive feedback. This study primarily aims to analyze the work related to the improvement of upper limb body-powered prostheses prior to 2016. A systematic review conducted via the search of the Web of Science electronic database, Google Scholar, and Google Patents identified 155 papers from 1921 to 2016. Sackett’s initial rules of evidence were used to determine the levels of evidence, and only papers categorized in the design and development category and patents were analyze

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Markowitz, Jared, Pavitra Krishnaswamy, Michael F. Eilenberg, Ken Endo, Chris Barnhart, and Hugh Herr. "Speed adaptation in a powered transtibial prosthesis controlled with a neuromuscular model." Philosophical Transactions of the Royal Society B: Biological Sciences 366, no. 1570 (2011): 1621–31. http://dx.doi.org/10.1098/rstb.2010.0347.

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Control schemes for powered ankle–foot prostheses would benefit greatly from a means to make them inherently adaptive to different walking speeds. Towards this goal, one may attempt to emulate the intact human ankle, as it is capable of seamless adaptation. Human locomotion is governed by the interplay among legged dynamics, morphology and neural control including spinal reflexes. It has been suggested that reflexes contribute to the changes in ankle joint dynamics that correspond to walking at different speeds. Here, we use a data-driven muscle–tendon model that produces estimates of the acti

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Versluys, Rino, Gerlinde Lenaerts, Michaël Van Damme, et al. "Successful Preliminary Walking Experiments on a Transtibial Amputee Fitted with a Powered Prosthesis." Prosthetics and Orthotics International 33, no. 4 (2009): 368–77. http://dx.doi.org/10.3109/03093640902984587.

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This paper presents the results of preliminary walking experiments on a transtibial amputee wearing a powered prosthesis. The prosthesis prototype serves as a proof-of-concept implementation for investigating the potential of pleated pneumatic artificial muscles to power a transtibial prosthesis. The device is equipped with pleated pneumatic artificial muscles, and tethered to a laboratory pressure source. The prosthesis is capable of providing the amputee with 100% of the required push-off torque and it can adapt its joint stiffness to the walking speed. This study supports the hypothesis tha

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Kejlaa, G. H. "Consumer concerns and the functional value of prostheses to upper limb amputees." Prosthetics and Orthotics International 17, no. 3 (1993): 157–63. http://dx.doi.org/10.3109/03093649309164376.

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This paper reports a study of 66 upper limb amputees in County Funen, Denmark who were visited in their homes by the author. The purpose of the study was to evaluate the consumer concerns about their prostheses and to see if these were related to cessation of prosthetic use. It was also intended to estimate functional levels of both prosthetic users and non-users. The number of amputees investigated corresponds to the annual number of persons becoming upper limb amputees in Denmark. There were 3 prosthetic systems in use, two active systems and one passive system. At review there was a group o

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Copeland, Christopher, Mukul Mukherjee, Yingying Wang, Kaitlin Fraser, and Jorge M. Zuniga. "Changes in Sensorimotor Cortical Activation in Children Using Prostheses and Prosthetic Simulators." Brain Sciences 11, no. 8 (2021): 991. http://dx.doi.org/10.3390/brainsci11080991.

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This study aimed to examine the neural responses of children using prostheses and prosthetic simulators to better elucidate the emulation abilities of the simulators. We utilized functional near-infrared spectroscopy (fNIRS) to evaluate the neural response in five children with a congenital upper limb reduction (ULR) using a body-powered prosthesis to complete a 60 s gross motor dexterity task. The ULR group was matched with five typically developing children (TD) using their non-preferred hand and a prosthetic simulator on the same hand. The ULR group had lower activation within the primary m

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Wanamaker, Andrea B., Lynsay R. Whelan, Jeremy Farley, and Ajit MW Chaudhari. "Biomechanical analysis of users of multi-articulating externally powered prostheses with and without their device." Prosthetics and Orthotics International 43, no. 6 (2019): 618–28. http://dx.doi.org/10.1177/0309364619871185.

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Background: Loss of the hand results in significant functional deficits and requires adaptation of movement patterns which may result in overuse injuries. An externally powered prosthesis may improve function of the affected limb and reduce the overreliance on the intact side; however, little research has been done in this area. Objective: Investigate changes in upper limb function and kinematics in individuals with partial-hand amputations performing a functional assessment by comparing results with and without a multi-articulating hand prosthesis. Study design: Cross-sectional. Methods: Thre

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Eilenberg, Michael F., Ken Endo, and Hugh Herr. "Biomechanic and Energetic Effects of a Quasi-Passive Artificial Gastrocnemius on Transtibial Amputee Gait." Journal of Robotics 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/6756027.

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State-of-the-art transtibial prostheses provide only ankle joint actuation and thus do not provide the biarticular function of the amputated gastrocnemius muscle. We develop a prosthesis that actuates both knee and ankle joints and then evaluate the incremental effects of this prosthesis as compared to ankle actuation alone. The prosthesis employs a quasi-passive clutched-spring knee orthosis, approximating the largely isometric behavior of the biological gastrocnemius, and utilizes a commercial powered ankle-foot prosthesis for ankle joint functionality. Two participants with unilateral trans

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LEMOYNE, ROBERT, and TIMOTHY MASTROIANNI. "CLASSIFICATION OF SOFTWARE CONTROL ARCHITECTURES FOR A POWERED PROSTHESIS THROUGH CONVENTIONAL GAIT ANALYSIS USING MACHINE LEARNING APPLICATIONS." Journal of Mechanics in Medicine and Biology 19, no. 06 (2019): 1950044. http://dx.doi.org/10.1142/s0219519419500441.

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The powered prosthesis for people with transtibial amputation offers the opportunity to more appropriately restore gait functionality with benefits, such as powered plantar flexion. In particular, various software control architectures provide unique capabilities for regulating the powered prosthesis during gait. One highly novel approach applies the winding filament hypothesis, which enables an advanced modeling of muscle characteristics, such as through introducing the attributes of titin into the muscle model. The objective of the research is to contrast the conventional control architectur

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Resnik, Linda, Shana Lieberman Klinger, Kathryn Korp, et al. "Training protocol for a powered shoulder prosthesis." Journal of Rehabilitation Research and Development 51, no. 8 (2014): vii—xvi. http://dx.doi.org/10.1682/jrrd.2014.07.0162.

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Phillips, Sam L., Linda Resnik, Christopher Fantini, and Gail Latlief. "Endpoint Control for a Powered Shoulder Prosthesis." JPO Journal of Prosthetics and Orthotics 25, no. 4 (2013): 193–200. http://dx.doi.org/10.1097/jpo.0000000000000006.

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Shaperman, J., M. Leblanc, Y. Setoguchi, and D. R. McNeal. "Is body powered operation of upper limb prostheses feasible for young limb deficient children?" Prosthetics and Orthotics International 19, no. 3 (1995): 165–75. http://dx.doi.org/10.3109/03093649509168000.

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The investigators measured efficiencies of body powered prehensors and cable control components of prostheses available for young children. Results indicated that the cable control systems and hook type prehensors have moderate to high efficiencies, but children's body powered hands have very low efficiencies. Measures of arm and shoulder strength of 3–5 year-old limb deficient children, both on the limb deficient and sound sides, were less than that reported in the literature for normal children. The findings were examined in relation to children's strength available compared with prosthesis

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Mukherjee, Monoj, and Siddhartha Das. "Efficacy and Safety of Duckbill Valve Voice Prosthesis in Comparison to Provox." Bengal Journal of Otolaryngology and Head Neck Surgery 27, no. 2 (2019): 149–53. http://dx.doi.org/10.47210/bjohns.2019.v27i2.242.

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Introduction Voice rehabilitation is the most important issue after total laryngectomy as source of vibration is removed. Three options are there like esophageal voice, electrolarynx and surgical prosthetic voice. Best is the prosthetic speech as voice is generated by lung powered air column. Provox prosthesis is the standard on and most commonly used. But it is costly for the class of patients presenting to our government hospitals. Duckbill prosthesis is very economical and may be helpful for them. There is very limited number of studies with duckbill prosthesis. Materials and Me

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Salem, Fathia H. A., Khaled S. Mohamed, Sundes B. K. Mohamed, and Amal A. El Gehani. "The Development of Body-Powered Prosthetic Hand Controlled by EMG Signals Using DSP Processor with Virtual Prosthesis Implementation." Conference Papers in Engineering 2013 (June 16, 2013): 1–8. http://dx.doi.org/10.1155/2013/598945.

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The state of the art in the technology of prosthetic hands is moving rapidly forward. However, there are only two types of prosthetic hands available in Libya: the Passive Hand and the Mechanical Hand. It is very important, therefore, to develop the prosthesis existing in Libya so that the use of the prosthesis is as practical as possible. Considering the case of amputation below the elbow, with two movements: opening and closing the hand, this work discusses two stages: developing the operation of the body-powered prosthetic hand by controlling it via the surface electromyography signal (sEMG

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Kuyper, M.-A., M. Breedijk, A. H. M. Mulders, M. W. M. Post, and A. J. H. Prevo. "Prosthetic management of children in the Netherlands with upper limb deficiencies." Prosthetics and Orthotics International 25, no. 3 (2001): 228–34. http://dx.doi.org/10.1080/03093640108726606.

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The aim of the study was to assess which children with congenital and acquired upper limb deficiencies were fitted with prostheses, what types of prostheses were prescribed as first, second and third prostheses, at what age prostheses were first prescribed and how long the children wore their prostheses.The design was a retrospective chart review at De Hoogstraat Rehabilitation Centre, Utrecht (The Netherlands). Medical files of all patients with congenital or acquired upper limb deficiencies who visited the outpatient clinic between 1972 and 1996 were reviewed, collecting data on patient char

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Yoon, Dukchan, Geon Lee, and Youngjin Choi. "Underactuated Finger Mechanism for Body-Powered Partial Prosthesis." Journal of Korea Robotics Society 11, no. 4 (2016): 193–204. http://dx.doi.org/10.7746/jkros.2016.11.4.193.

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Au, S. K., J. Weber, and H. Herr. "Powered Ankle--Foot Prosthesis Improves Walking Metabolic Economy." IEEE Transactions on Robotics 25, no. 1 (2009): 51–66. http://dx.doi.org/10.1109/tro.2008.2008747.

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KAJITANI, Isamu, Katsunori KINOSHITA, and Tomoki MITA. "MG111 Evaluations of a wrist-functional powered-prosthesis." Proceedings of the JSME Symposium on Welfare Engineering 2007 (2007): 88–90. http://dx.doi.org/10.1299/jsmewes.2007.88.

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Sup, Frank, Amit Bohara, and Michael Goldfarb. "Design and Control of a Powered Transfemoral Prosthesis." International Journal of Robotics Research 27, no. 2 (2008): 263–73. http://dx.doi.org/10.1177/0278364907084588.

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Silva, Jorge, Winfried Heim, and Tom Chau. "A Self-Contained, Mechanomyography-Driven Externally Powered Prosthesis." Archives of Physical Medicine and Rehabilitation 86, no. 10 (2005): 2066–70. http://dx.doi.org/10.1016/j.apmr.2005.03.034.

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Lenzi, Tommaso, Marco Cempini, Levi Hargrove, and Todd Kuiken. "Design, development, and testing of a lightweight hybrid robotic knee prosthesis." International Journal of Robotics Research 37, no. 8 (2018): 953–76. http://dx.doi.org/10.1177/0278364918785993.

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We present a lightweight robotic knee prosthesis with a novel hybrid actuation system that enables passive and active operation modes. The proposed hybrid knee uses a spring-damper system in combination with an electric motor and transmission system, which can be engaged to provide a stair ambulation capability. In comparison to fully powered prostheses that power all ambulation activities, a hybrid knee prosthesis can achieve significant weight reduction by focusing the design of the actuator on a subset of activities without losing the ability to produce equivalent torque and mechanical powe

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Leestma, Jennifer K., Katherine Heidi Fehr, and Peter G. Adamczyk. "Adapting Semi-Active Prostheses to Real-World Movements: Sensing and Controlling the Dynamic Mean Ankle Moment Arm with a Variable-Stiffness Foot on Ramps and Stairs." Sensors 21, no. 18 (2021): 6009. http://dx.doi.org/10.3390/s21186009.

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(1) Background: Semi-active prosthetic feet can provide adaptation in different circumstances, enabling greater function with less weight and complexity than fully powered prostheses. However, determining how to control semi-active devices is still a challenge. The dynamic mean ankle moment arm (DMAMA) provides a suitable biomechanical metric, as its simplicity matches that of a semi-active device. However, it is unknown how stiffness and locomotion modes affect DMAMA, which is necessary to create closed-loop controllers for semi-active devices. In this work, we develop a method to use only a

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