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Prosthetics


— Health and Wellbeing

Scientists replace amputee's hand ... along with its sense of touch

By - February 10, 2014 13 Pictures
A man who lost his left hand in an accident nine years ago has had his sense of touch restored using a prosthetic hand surgically wired to nerves in his upper arm. During the trial Dennis Aabo Sørensen was able to grasp objects, detect the strength of grip, distinguish shape and identify objects by touch while blindfolded. The work was carried out by scientists from École Polytechnique Fédérale de Lausanne (EPFL) and Scuola Superiore Sant'Anna (SSSA). Read More
— Science

Monkeys control arms of avatar using their mind

By - November 7, 2013 1 Picture
Recently there's been increasing hope for people who have lost the use of their arms, as various research institutes have started developing prosthetic arms that can be controlled by thought alone. So far, all of the systems have just allowed users to control a single arm – for many of the tasks that we perform on a daily basis, that's simply not enough. Now, however, scientists at North Carolina's Duke University have succeeded in getting two rhesus monkeys to control both arms of animated digital avatars, using nothing but their mind. Read More
— Robotics

AMBER 2 bipedal robot mimics humans for a more natural gait

By - November 3, 2013 6 Pictures
Bipedal robots have proved a challenging frontier for roboticists, with styles ranging from clunkers to lurchers to those seemingly falling over drunk. However, the AMBER lab at Texas A&M University has created universal mathematical functions of walking derived from human data and optimized for robotic systems. Their own proof of concept robots have strikingly human gaits and react appropriately to disturbances. Furthermore, the system has the potential to be applied to other bipedal robots to similarly upgrade their stride. Read More
— Science

Experimental brain implants pave way for touch-simulating prosthetics

By - October 16, 2013 1 Picture
It's something most of us take for granted, but our sense of touch is every bit as useful to us as our sight and hearing. Though it seems simple, picking up and holding an object requires nearly instantaneous sensation in the parts of our hands and fingers in contact with the desired object, as well as a sense of the pressure we're applying. Many experimental efforts to simulate a sense of touch in amputees fitted with prosthetics require the subject to learn new associations between touching an object and some abstract sensation. But new research at the University of Chicago suggests that it is possible to map the individual finger pads of a prosthetic hand to the corresponding parts of the brain. In other words, prosthetic hands which offer a realistic sense of touch may theoretically be possible. Read More
— Inventors and Remarkable People

Teen's inexpensive 3D-printed prosthetic could aid amputees in the third world

By - August 13, 2013 6 Pictures
Advanced prosthetics have come a long way in the last few years, but the costs have also skyrocketed. A cheaper alternative may be on its way thanks to Easton LaChappelle, a 17-year old high school student from Colorado, who is using free online resources and the boom in inexpensive 3D printers to develop a functional prosthetic arm and hand. His projects have already earned him an invitation to the White House, and he's now working at NASA on the Robonaut team. Read More

Disabled duck gets a 3D-printed foot

Buttercup the duck was born with a strange birth defect. One of the little duckling's legs faced the wrong direction. To remedy the situation, 3D printing technology has been used to create a prosthetic leg that should allow Buttercup to live a somewhat normal, albeit much more famous, life. Read More
— Robotics

DARPA's advanced prosthetics give bomb disposal robot a delicate touch

By - June 19, 2013 18 Pictures
A new bomb disposal robot developed at the Johns Hopkins University Applied Physics Laboratory (APL) is blurring the line between advanced prosthetics and robotics. Rather than building arms and hands from scratch specifically for the robot, the Bimanual Dexterous Robotics Platform (BDRP) is equipped with artificial limbs designed for amputees. The combination is relatively unique, and provided the team with a secondary use for the Modular Prosthetic Limb (MPL) it developed for the DARPA Revolutionizing Prosthetics program. Read More
— Health and Wellbeing

DARPA uses nerve/muscle interfaces to give amputees feedback and improve control

By - June 2, 2013 2 Pictures
Artificial limbs have come a long way in recent years with the development of prostheses that can be controlled directly by the patient’s nerves. The problem is, links between living nerves and the prostheses break down over time, which makes permanent attachment and practical control difficult. To understand why this happens and to help give patients more control over their prostheses, DARPA has instituted a number of programs aimed at improving neural interfaces and allowing amputees to have better control of advanced prostheses in the near term. Read More
— Science

Piezoelectric skin provides human-like sense of touch

By - April 30, 2013 3 Pictures
For years now, scientists across the globe have strived to find a method that gives robots an accurate sense of touch, and with good reason. A robot with an improved ability to feel would be better equipped to identify objects, judge its movements with greater care, and perform more tasks overall. In the latest step towards that goal, researchers at Georgia Tech have crafted a new type of touch-reactive material that's sensitive enough to read fingerprints and could provide robots with a sense of touch that resembles our own. Read More
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