Liu, T., & Realmuto, J. (2024). A Soft Robotic Exosuit for Knee Extension Using Hyper-Bending Actuators. In 2024 IEEE 7th International Conference on Soft Robotics (RoboSoft) (pp. 145-150). IEEE.
This research paper presents a novel design and fabrication framework for a soft robotic exosuit aimed at assisting lower limb movements, specifically knee extension. The study focuses on developing a hyper-bending actuator capable of delivering substantial force while remaining lightweight and comfortable for the user.
The researchers developed a hyper-bending actuator using a combination of braided mesh and knit-elastic materials. This actuator design leverages the materials' unique properties to achieve bending motion when inflated. The actuator is integrated into a custom-made neoprene pant with a 3D-printed human-robot interface for secure and comfortable attachment to the user's leg. Preliminary testing involved evaluating the exosuit's ability to generate sufficient force for assisting sit-to-stand transitions.
The proposed hyper-bending actuator demonstrated the ability to generate significant force for assisting knee extension. The researchers successfully integrated the actuator into a wearable exosuit system that is lightweight, comfortable, and easy to don and doff. Preliminary tests indicate the exosuit's potential for assisting users during sit-to-stand movements.
The study presents a promising design framework for soft robotic exosuits utilizing hyper-bending actuators. This approach offers a viable solution for developing assistive devices that are both effective and comfortable for users. The researchers highlight the potential of this technology for improving mobility and independence in individuals with movement disorders.
This research contributes to the field of soft robotics by introducing a novel actuator design and demonstrating its application in a functional exosuit system. The findings have significant implications for the development of assistive technologies aimed at improving the quality of life for individuals with mobility impairments.
The current prototype focuses solely on knee extension and requires further development to incorporate additional degrees of freedom for more complex movements. Future research will focus on refining the design, conducting rigorous testing with human subjects, and exploring the integration of hip extension capabilities.
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