UH-MIGUEL-M

UH-MIGUEL-M

UH-MIGUEL is a low-cost underactuated hand prosthesis with electric actuation. It is manufactured using only a domestic 3D printer and two different materials: PLA and Filaflex. This hand is the result of the final Master project of Miguel Martínez for the Master of Design and Manufacturing, supervised by Imma Llop and Néstor Jarque. It is an evolution of the previous design with mechanical actuation UH-MIGUEL.

It has 14 degrees of freedom controlled by a motor located in the harness together with the control system. The actuation system features a two-level underactuation mechanism based on pulleys: one level distributes motion among the different fingers in the palm, and another operates across the joints of each finger. In addition, it provides two positions for thumb adduction (opposition and lateral pinch), which can be selected by the user by manually rotating and locking the thumb.