Design, development and implementation of a biomechanical right-hand prosthesis: Second stage

Luis Fernando Cajamarca, Jorge Matute, John Calle, Fernando Yunga, José Vargas, Fernando Urgiles

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This document presents the development of a right-hand biomechanical prosthesis. This artificial limb provides range of motion to a person whose hand has been amputated at the wrist level, allowing them to grab objects through a cylindrical grip, lateral grip, tip grip and twisting of the wrist, helping the patient to perform daily activities like drinking water, holding pens, typing, and holding flat and cylindrical objects. This research is carried out in two phases: during the first phase a prototype was developed that allows for movement of the fingers using a system of links that integrates a micro controller commanded through signals relayed from an optical sensor placed 10 mm from the stump of the patient; in the second phase a prototype that improves the anthropometry and aesthetics of the prosthesis by taking measurements and 3D scanning of a human hand is developed, it also integrates the rotating movement of the wrist using a broached axle and cube system that allows the prosthesis to rotate 360° on its own axis, the battery dimensions are also reduced and it is placed on the back of the prosthesis; to ensure that the forearm is fastened, a low-weight socket is developed to accommodate the rotating system. About 70% of the components are 3D-printed and the remaining 30% are obtained through conventional machining processes. The result is a prosthesis that allows up to 37 sequences, featuring a non-invasive, easy to manipulate control system and a cost of less than 3,000 dollars, lastly, implementation of the prosthesis is done on a right-hand amputee, who manages to control the prosthesis within three months of daily practice.

Original languageEnglish
Title of host publicationGHTC 2017 - IEEE Global Humanitarian Technology Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
ISBN (Electronic)9781509060467
DOIs
StatePublished - 22 Dec 2017
Event7th IEEE Global Humanitarian Technology Conference, GHTC 2017 - San Jose, United States
Duration: 19 Oct 201722 Oct 2017

Publication series

NameGHTC 2017 - IEEE Global Humanitarian Technology Conference, Proceedings
Volume2017-January

Conference

Conference7th IEEE Global Humanitarian Technology Conference, GHTC 2017
CountryUnited States
CitySan Jose
Period19/10/1722/10/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

  • 3D printing
  • anthropometrics
  • biomechanical prosthesis

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