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Modular Prosthetic Limb Replicates Much of the Arm's Motor and Sensory Functions

July 11th, 2013 Scott Jung Military Medicine, Neurology, News, Rehab

Modular-Prosthetic-Limb Thanks to recent advancements in robotics, sensors, and neurology, prosthetic limbs have become much more functional replacements for amputees. The latest is the Modular Prosthetic Limb (MPL), a result of joint research between the University of Arizona and Johns Hopkins University.

Modular-Prosthetic-Limb-2

Dr. Albert Chi (left) assists patient Johnny Matheny with the robotic Modular Prosthetic Limb.

U of A scientists tout it as the “world’s most advanced prosthetic limb.” They have good reasons: the Modular Prosthetic Limb contains 100 sensors built into the arm which are capable of receiving information about temperature, pressure, joint angles and acceleration, as well as surface texture and proprioception (relative position). Movement of the arm is conveyed with just the user’s thoughts. Moreover, the MPL is truly modular, able to replace an amputated limb at any injury level, and, its neural components can be configured using the new “targeted muscle re-innervation” technique that utilizes the still viable nerves and muscles in an amputated limb.

Johnny Matheney is a user of the Modular Prosthetic Limb who lost his arm to cancer a few years ago. Since he began to use the MPL in May of last year, Matheney says he he has gained the ability to point his prosthetic finger, grasp a ball and flex his wrist. He can tell the difference between his index and little finger as well as detect the difference between soft and hard objects.

More info from Johns Hopkins University: Modular Prosthetic Limb

News article from the University of Arizona: Thought-Controlled Robotic Arm ‘Makes a Big Negative a Whole Lot Better’

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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