Never fall again thanks to backpack-like wearable robot

Never fall again thanks to backpack-like wearable robot
Credit: Delft University of Technology

Balance aids currently used in daily life and rehabilitation clinics are helpful but far from perfect. Canes, walkers, crutches, and handrails modify posture and prevent the hands from being used during activities like opening doors, carrying shopping, or answering the telephone. Also more sophisticated tools like mobile bodyweight support systems or robotic gait trainers are bulky or can only be used in specific environments. Andrew Berry, Daniel Lemus and Saher Jabeen, researchers BioMechanical Engineering at TU Delft, led by Professor Heike Vallery, developed a backpack-like wearable robot to provide balance support during rehabilitation; the GyBAR. Fully contained within the backpack is a gyroscopic actuator—a spinning disc repositionable with electric motors—to provide hands-free balance support in multiple activities and environments. The results of the first experiments with human subjects and potential end-users have been published in Scientific Reports.

Risks

Falling is the leading cause of accident-related injury among all , but is particularly threatening among sufferers of conditions that affect or result in sensory or cognitive impairment. Adults over the age of 65 are at great risk of serious injury during falling, and, in the event that the hip is fractured, have a 25% chance of dying from their injuries within 6-12 months of the event. To develop a hands-free balance assisting device capable of automatic detection and correction of instability, the field of wearable robotics offers great potential.

Inspiration from space

For developing the GyBAR inspiration came from space: satellites are able to change orientation in space without exerting forces or moments against the environment. Moments can be exerted on the spacecraft (or human body) by modifying the angular momentum of internal flywheels, thereby inducing or preventing rotation as desired. One technique to do this exploits a principle called the gyroscopic effect, which can be observed in spinning tops that resist the effect of gravity. Researchers at TU Delft managed to use the gyroscopic effect to construct an actuator, as opposed to its more common use as a sensor (e.g., the gyroscope sensor in your mobile phone to measure motion).

Never fall again thanks to backpack-like wearable robot
Credit: Delft University of Technology

Explore further

Smarter, lighter exoskeletons to provide better mobility therapy

More information: Daniel Lemus et al. Controller synthesis and clinical exploration of wearable gyroscopic actuators to support human balance, Scientific Reports (2020). DOI: 10.1038/s41598-020-66760-w
Journal information: Scientific Reports

Citation: Never fall again thanks to backpack-like wearable robot (2020, July 14) retrieved 11 August 2020 from https://techxplore.com/news/2020-07-fall-backpack-like-wearable-robot.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
213 shares

Feedback to editors

User comments