Our skeletons and muscles are an engineering miracle far beyond anything humans have achieved. Therefore, engineers are working on powered exoskeletons as a new direction. This is because these bring fresh hope to arthritis and muscular dystrophy sufferers.
However, in a sense, they are copying a technology grasshoppers, cockroaches, crustaceans, lobsters, and crabs have used for millennia. Next time you see the discarded exoskeleton of a cicada, stop and wonder.
Applications for Powered Exoskeletons in Medicine
Exoskeletons are wearable, mobile machines taking their strength from a variety of sources. These inputs are electric motors, pneumatics, levers, and hydraulics combined into systems. In industry, they grant workers greater endurance and strength.
See Exoskeleton Technology Revealed
Medical specialists are using these ‘exosuits’ to improve the quality of life of people who have lost limbs. They also bring new hope to people crippled by accidental injury or disease. Researchers in Japan have developed exoskeletons to help nurses lift and carry patients. Exosuits also help patients recover from strokes or spinal cord injuries.
Batteries’ Magic Role in This New Technology
Any mobile or portable device using electricity needs a battery. Engineers are actively involved in research to find optimum solutions. Currently, the best of these can only power a full exosuit for a few hours.
Interestingly, they have found primary cells preferable to rechargeable ones, because they pack more density. Carrying spare sets for immediate exchange is also simpler than swapping out cells for recharging. Moreover, primary cells can’t overheat and catch fire as can happen with lithium ones when recharging.
We have heard John Goodenough is developing solid-state rechargeable glass batteries that may solve this problem. There are still many bridges to cross before we perfect exoskeletons. These include developing lightweight actuators, pneumatic air muscles, and joint flexibility coming close to the fingers of a concert pianist.
Related
MXenes Could Grow Charge Life By 40%
John Goodenough’s Solid State Battery Breakthrough
Preview Image: Cicada Exoskeleton on a Flower Stem
Video Share Link: https://youtu.be/2VvbizYLT4M
