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The Arm2u biomedical engineering team from the Barcelona School of Industrial Engineering of the Universitat Politècnica de Catalunya designed and constructed a configurable transradial prosthesis that responds to the user's nerve impulses using 3D printing technology.
Following the development of the first prosthesis last year, the team has advanced by producing a second prototype—a fully functional robotic arm—that allows for the opening and closing of the hand and forearm rotation. It is based on EMG sensors, which gather the instructions from a patient's muscle contraction and convert these electrical impulses into a signal that the microcontroller can comprehend and use.
The second model has a number of enhancements, including an inbuilt LCD screen that continuously updates information about the prosthesis' state, including its battery life, the effort required by the fingertips, interior temperature, and more.The new design is also lighter overall than the previous generation, which makes it more comfortable, and has improved adaptability that enables adjusting to the user's arm size.
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