The hand consists of five fingers and one palm. It is mainly used to grasp and hold things. It is one of the most important human organs. Even if only one of them is lost, it will bring a lot of trouble to life. Not only can we not easily create art by hand, even eating, bathing, and writing can become big problems.
In the movie "Star Wars," Darth Vader, one of the protagonists, lost his hand several times, but he could still use his "hands" normally because he had "manipulators." Although the movie is beautiful, the reality is cruel. At present, "hand-made prosthetic limbs" installed by disabled persons can only serve as decorative functions
In fact, turning "prosthetic hand prostheses" into "robots" in "Star Wars" has always been a dream of the medical and scientific communities. Now researchers from the Georgia Institute of Technology in the United States have taken the lead in realizing this dream. They took inspiration from Star Wars to develop an intelligent new prosthetics powered by ultrasonic algorithms that allow amputees to use their hands like normal people.
(The researchers conducted experiments on real hands, and then used the experimental data for "February" perceptual feedback. Figure | Georgia Tech University)
This new type of prosthetic limb can enable handicapped people to complete various operations, and basic functions such as bathing and eating can be easily mentioned. Highly difficult activities such as piano performance can be realized. In the experimental video, a musician who lost his right hand five years ago successfully played a piano tune with a “prosthetic hand prosthesis” he wore.
Although this technology seems very "science fiction", it is still based on the basic biological laws of human development. Although the amputees lose their hands, the brain nerves can still communicate with the forearm muscles. Because the movements of these forearm muscles are exactly the muscle groups that command the movement of the fingers, when someone wants to move the “prosthetic prosthesis”, the ultrasound can The movement of the forearm muscle is detected and the detection signal is transmitted to the "prosthetic" equipment; next, the machine's built-in machine algorithm system will measure the exact meaning of human muscle movement expression; finally, the prosthesis can be issued according to the algorithm's instructions. , Exercise like a normal hand.
The Georgia Tech research team stated that in the next step they will work hard to reduce the power consumption of ultrasonic sensors and make the device smaller in size, making this "prosthetic hand prosthesis" more suitable for people with disabilities.