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Undergraduate Engineers Develop Brain-Controlled Prosthetic Arm

April 6th, 2011 Scott Jung Rehab

h5qdl26q.pngA couple of undergraduate biomedical engineers from Ryerson University in Toronto, Canada, have developed a brain-controlled prosthetic arm. While their robotic arm certainly isn’t the world’s first or the most technologically-advanced prosthetic, it could very well be the safest and least expensive. That’s because unlike traditional prosthetic limbs, which contain sophisticated electronic and mechanical components, the Artificial Muscle-Operated (AMO) arm is made primarily of simple pneumatic pumps and valves and a tank of compressed air to create movement. This has allowed the prosthetic to be developed at just one-quarter of the cost of a traditional prosthetic limb.
Moreover, most prosthetic limbs controlled by neural signals require an invasive and expensive re-innervation surgery to re-route major nerves, followed by weeks of training. The AMO arm uses brain signals measured with a head-worn device (EEG, we presume) connected to a computer that controls the arm’s pneumatic system.
You may be wondering if this budget robotic arm can match the performance of the more expensive and intricately designed competitors. According to Michal Prywata, one of the inventors, it only takes ten minutes to master the basic functioning of the arm. Also, the pneumatic nature of the AMO allows for a greater range of movement than other prosthetic arms. Finally, AMO arm technology has a number of potential applications, such as wheelchair devices and military robotics, and research efforts are already underway to implement improvements such as independent finger movements and enabling the arm to sense what kind of material it is holding.
Article from Ryerson University: Ryerson students invent breakthrough brain-controlled prosthetic arm…

Scott Jung

Scott Jung (@scottjung) is a Silicon Valley-based medical and health technology reporter and advocate, with a focus on wearables, telemedicine, and health technology in emerging countries. He has represented Medgadget at CES and Digital Health Summit, TEDMED, Stanford Medicine X, and SXSW. Always on the lookout for innovative medical technology worldwide, Scott has been invited to visit Colombia, Poland, and many other countries around the world to share how medtech is enriching the lives of its people. Scott holds a B.S. degree in Biomedical Engineering from the University of Southern California and an M.S. degree in Medical Product Development Management from San José State University. Scott is always looking for the next big thing in medical technology and digital health. Interested in helping him transform lives? Get in touch with him at http://scottju.ng

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