Nature Portfolio’s Post

💥 Exploring factors leading to falls in transfemoral prosthesis users after stumble perturbations to their prosthesis-side, here's what we concluded: ⚡️ "Based on the stumble recovery responses, four potential deficiencies were identified in the response of the knee prostheses: (1) insufficient resistance to stance knee flexion upon ground contact; (2) insufficient swing extension after a perturbation; (3) difficulty initiating swing flexion following a perturbation; and (4) excessive impedance against swing flexion in early swing preventing the potential utilization of the elevating strategy. Each of these issues can potentially be addressed by mechanical or mechatronic changes to prosthetic design to improve quality of recovery and reduce the likelihood a fall." 🔎 Check out the O&P Edge article for a longer summary, or the Journal of NeuroEngineering and Rehabilitation publication for all the details. #biomechanics #prosthetics

Power Knee provides unique benefits not found in passive microprocessor knees, by replicating the function of lost muscles and creating motion in the prosthesis. Take an in-depth look at Power Knee’s unique benefits in the video here: https://lnkd.in/gdcxYDUq

Learn how Humotech enhances human performance through advanced motion control with Kollmorgen ⬇️ Learn how Humotech uses high-performance servo technology to help researchers and developers bring advanced prostheses and exoskeletons to market faster: https://bit.ly/42ArBgb

In advanced prosthetics, accurate data ensures seamless integration of artificial limbs with the human body, enhancing user experience. A prime example is the MIT Biomechatronics Group’s powered prosthesis, which uses FUTEK’s LCM series load cells to measure tension and compression forces at the ankle. This sensor ensures the prosthesis functions with high precision, allowing users to feel and control their artificial limb as if it were natural. Discover how precise force measurement can enhance your prosthetic designs. Learn more about FUTEK's LCM series and its applications in cutting-edge biomechatronics: https://lnkd.in/eGNy77jm #artificiallimb #bioniclimb #prostheticlimb

Real-time data based on actual human use is helping OEMs design better prostheses and exoskeletons, faster. Learn how Humotech makes a difference. #Kollmorgen #MotionControl #Exoskeletons https://ow.ly/aOOf30sFJMw

Amputees often struggle with natural interaction due to missing sensory feedback in their prostheses, including temperature perception. Muheim et al. utilize phantom thermal sensations to provide real-time temperature information about grasped objects, via a standalone system integrated into a commercially available prosthesis. This system can potentially improve prosthesis function and naturalness, and greatly benefit amputees in daily tasks. https://lnkd.in/duiTGgpZ

Investigation into the analysis method for assessing contact stress in joint prosthesis https://lnkd.in/gaAE6_CV Contact stress is the important cause of wear and failure of knee joint prostheses implanted in the human body during movement. The calculation of contact stress on joint prostheses is often inaccurate due to the deviation of joint position during activity. This paper proposes a correction method for contact stress based on finite element results. Firstly, the contact stress and contact radius between femoral and tibial prostheses of knee joint were calculated and analyzed by Hertz contact theory. Then, individualized finite element models based on the individualized geometry of the joint prosthesis and individualized loading were constructed, and the finite element contact stress was analyzed. The finite element results were calibrated utilizing the Hertz contact theory. Additionally, this study investigated the impact of three gait patterns (normal gait, medial thrust gait, and bouncing gait) on the contact stress experienced by the tibial insert. The research methods and results can provide ideas for theoretical analysis and finite element simulation of prosthetic joint contact, as well as offer theoretical support and analysis methods for evaluating the lifespan of prosthetic joints. #Contact stress #Joint prosthesis #Hertz contact #Finite element model #technology #innovation #research

Real-time data based on actual human use is helping OEMs design better prostheses and exoskeletons, faster. Learn how Humotech makes a difference. #Kollmorgen #MotionControl #Exoskeletons https://ow.ly/XmU830sA931

Real-time data based on actual human use is helping OEMs design better prostheses and exoskeletons, faster. Learn how Humotech makes a difference. #Kollmorgen #MotionControl #Exoskeletons https://ow.ly/oa2G30sFwOv

Real-time data based on actual human use is helping OEMs design better prostheses and exoskeletons, faster. Learn how Humotech makes a difference. #Kollmorgen #MotionControl #Exoskeletons https://ow.ly/2G6o30sEshr