Seeing Hand Offers New Hope to Amputees
TEHRAN (Tasnim) - Bioengineers developed a 'hand that sees' which is able to reach for and grasp objects automatically, responding ten times quicker than current prosthetics.
A new generation of prosthetic limbs which will allow the wearer to reach for objects automatically, without thinking -- just like a real hand -- are to be trialed for the first time.
Led by biomedical engineers at Newcastle University, and funded by the Engineering and Physical Sciences Research Council (EPSRC), the bionic hand is fitted with a camera which instantaneously takes a picture of the object in front of it, assesses its shape and size and triggers a series of movements in the hand.
Bypassing the usual processes which require the user to see the object, physically stimulate the muscles in the arm and trigger a movement in the prosthetic limb, the hand 'sees' and reacts in one fluid movement.
Publishing their findings in the Journal of Neural Engineering, co-author on the study Dr. Kianoush Nazarpour, a Senior Lecturer in Biomedical Engineering at Newcastle University, explained, "Prosthetic limbs have changed very little in the past 100 years -- the design is much better and the materials' are lighter weight and more durable but they still work in the same way.”
"Using computer vision, we have developed a bionic hand which can respond automatically -- in fact, just like a real hand, the user can reach out and pick up a cup or a biscuit with nothing more than a quick glance in the right direction,” he added.
The 'hand that sees', explained Dr. Nazarpour, is an interim solution that will bridge the gap between current designs and the future.
