Diseño y construcción de un prototipo de prótesis para falanges ausentes de la mano mediante manufactura aditiva

Abstract

This project focuses on the design and construction of a prototype prosthesis for a person with amputated distal and middle phalanges, seeking to improve their quality of life by restoring the functionality of the hand. The loss of these phalanges significantly impacts the ability to perform daily and work tasks, affecting autonomy and interaction with the environment. The prototype was customized to the patient, adapted to the user’s specific measurements, optimizing fit, comfort and functionality, through the use of 3D printing, facilitating rapid design iteration and adaptation to individual user needs. The results obtained showed a 72.5% correlation of the ROM of the prosthesis with respect to the ROM of the patient’s contralateral hand, on the other hand, the prototype generates grip forces on average of 0.875N, a result obtained from tests with a didactic dynamometer.