One man was able to control two robotic arms thanks to electrodes implanted in his brain. He was able to carry out complex tasks, such as cutting and eating pastry, thanks to shared control with preprogrammed gestures.
Theor some are found in the to control devices or robots, they represent one of the most promising solutions to assist people with disabilities, especially if they cannot use their hands and arms. However, the use of robotic arms poses a problem due to the complexity of the manipulations required.
The researchers of the, in the United States, have managed to get around this problem. Their solution allowed a paralyzed man to feed himself using two robotic arms. Following an injury to the the subject only kept a slight in his shoulders, elbows and wrists. The researchers implanted a in the sensorimotor regions of sound especially those that correspond to his arms.
Semi-autonomous robotic arms
Where this solution differs from other research on the subject is the shared control of robotic arms. Instead of requiring the human to guide each movement, they divided the activities into steps and programmed the robot to automatically perform certain movements. This made it possible to control the 12 degrees of freedom of the robotic arms with just four gestures recorded by thetwo per arm.
The man was thus able to drive the, equipped with a knife and fork, to cut a puff pastry and bring it to the mouth, a task that had previously been cut into 13 steps. This solution only allows you to perform a limited number of pre-programmed activities, but it may already help paralyzed people regain greater independence.