Prosthetics

For millennia, philosophers have debated whether or not the self exists solely in the mind, the body, or both. Well, it’s unclear whether this will help clear things up or just muddy the waters further, but Swedish neuroscientists are now claiming that the human brain can add outside objects such as a third arm to one’s physical sense of self, and that people can even mentally project their “self” out of their own body and into someone else’s. If these findings hold up, the implications for virtual reality, robotics and prostheses could be substantial.  Read More

According to tests recently performed at the University of Manchester, two ancient Egyptian artificial big toes were likely used by their owners for walking, and not simply placed on their dead bodies for religious or ritualistic reasons. If so, it would make them the world's earliest-known prosthetic devices. The tests involved getting big-toeless volunteers to try walking while wearing replicas of the two toes ... and the toes were up to the task.  Read More

Luke Skywalker/Steve Austin-like bionic hands might seem like something straight out of... well, science fiction, but they’re most definitely not. There are now actually several companies competing to sell hands that can perform complex, independent-fingered tasks, and that can even return a sense of touch to the amputee user. In the recent past, we’ve told you about several of these devices, including the iLimb, the SmartHand, and the CYBERHAND. Recently, British company RSLSteeper officially threw its hat (or glove?) into the ring, with the unveiling of its bebionic myo-electric hand.  Read More

Most of us take it for granted, but walking isn't as simple as it looks. With the natural human gait the ankle exerts force to push off the ground. A typical prosthesis doesn’t reproduce the force exerted by a living ankle, resulting in amputees spending much more energy in comparison to walking naturally. A new prototype artificial foot recycles energy that is otherwise wasted in between steps to significantly cut the energy spent per step, making it easier for amputees to walk.  Read More

The fact that the hand is such a debilitating body part to lose has spurred researchers to develop a functional and aesthetically pleasing bionic replacement. While seemingly not as severe as the loss of an entire hand, the loss of fingers can be just as much of a hindrance and represents the largest group of arm amputees. Short of removing the remaining partial hand, there has been no bionic option available to replace missing fingers. Now, the same company responsible for the i-LIMB Hand has addressed this deficit with the launch of ProDigits, the world’s first powered-bionic finger.  Read More

Scientists have successfully wired a state-of-the-art artificial hand to existing nerve endings in the stump of a severed arm. Its creators say the device, called “SmartHand,” resembles a real hand in function, sensitivity and appearance. In order to develop such an intelligent artificial prosthetic hand with all the basic features displayed by a real one, the SmartHand team integrated recent advances in nanobioscience, cognitive neuroscience and information technologies.  Read More

Existing robotic prostheses have limited motor control, provide no sensory feedback and can be uncomfortable to wear. In an effort to make a prosthesis that moves like a normal hand, researchers at the University of Michigan have bioengineered a scaffold that is placed over severed nerve endings like a sleeve and could improve the function of prosthetic hands and possibly restore the sense of touch for injured patients.  Read More

Routine physical examinations of a more intimate nature may become a little less awkward and a little more precise according to a team of engineering students from the University of Florida. The team's design of a ‘mixed reality’ human patient could be the answer in managing this delicate aspect of bedside manner. The mixed reality human is named Amanda Jones and she exists, in both virtual and physical form, as a life-sized cyberspace image on a flat screen, and as a mannequin with a prosthetic breast. Her purpose is noble: to help train medical students to conduct intimate breast exam procedures.  Read More

An artificial knee costing just USD$20 promises to deliver much needed help to amputees who are disadvantaged or impoverished – particularly when the price of high-end titanium knee joints can range anywhere from USD$10,000 to USD$100,000. The artificial knee, dubbed the JaipurKnee, was developed by Joel Sadler, a lecturer in mechanical engineering and d'Arbeloff Fellow, and his team at the Hasso Plattner Institute of Design at Stanford University.  Read More