Dise？o mecánico y cosmético de una prótesis parcial de mano

the objective of present paper is the functional and cosmetic solution for a patient with mutilation of second and third hand rays and arthrodesis of the thumb if in functional position (45°). an individual design of prosthesis constructed according to the own dimensions of patient, whose process was together with patient; the results from quality function deployment (qfd) were analyzed to make changes and improvements in fixation mechanisms and systems also proposed according to the cinematics analysis by mobility simulations in different types of software, implementing a withworth's double mechanism, which must to be stable and to take advantage of the lacking spaces in the hand; by disability of the arm, shoulder and hand (dash) study we made the self-evaluation of patient. so, it was achieved the satisfaction of patient and a significant recovery of hand motor function, allowing that patient to perform more efficiently activities that before were impossible to perform, improving his quality of life and the way how himself must to face the world.