By Anthony Clark,Plastics & Rubber Weekly
Matthew Mikosz, president of US-based Partial Hand Solutions, developed the M-Finger prosthetic as a response to the number of service personnel returning home with hand and finger injuries. The prototype was built with material development assistance from custom compounder RTP Company.
"While there were a number of prosthetic hand designs on the market, no functional mechanical fingers had yet been developed," said Mikosz. "With M-Fingers, I saw an opportunity to give back to veterans who had lost something."
The M-Finger design uses an RTP 2300 Series glass-filled rigid thermoplastic polyurethane for the inner structure of the fingers and multi-position thumb. These are then overmoulded with an RTP 1200 Series thermoplastic polyurethane elastomer, which provides each finger with dexterity to independently and gently conform to whatever it grasps.
PIC: The fingers, which are actuated by flexing the wrist, include moulded-in fingernails for picking up small objects such as coins"