Functional Evaluation of an Anthropometric Artificial Hand

  • Gonzalo Lasheras Facultad de Ingeniería, Universidad Nacional de Rio Cuarto
  • Juan M. Fontana Universidad Nacional de Río Cuarto
  • Ronald J. O'Brien Facultad de Ingeniería, Universidad Nacional de Rio Cuarto
  • Natacha S. Castro Facultad de Ingeniería, Universidad Nacional de Rio Cuarto
  • Eric Laciar Facultad de Ingeniería, Universidad Nacional de San Juan
  • Leonardo Molisani Facultad de Ingeniería, Universidad Nacional de Rio Cuarto

Abstract

During the last years, different types of upper limb prostheses have been developed to improve the quality of life of people. In developing countries, access to these prostheses is severely limited due to inflated costs. For that reason, the technological development of a low-cost prosthetic device at the national level is particularly important as it will contribute to solve a social problem. This paper presents the design and evaluation of a robotic hand prototype designed for prosthetic applications. It consists of 5 sub-actuated fingers, powered by DC motors, and equipped with force and position sensors. In addition, it has a mechanism for the thumb’s opposition that gives a greater functionality to the hand and allows the grasping of objects using three different grip configurations: cylindrical, pinch and lateral. To evaluate the functionality of the prototype, experiments were performed involving the grasping of objects of simple geometry using each of the configurations mentioned. The results obtained were satisfactory and demonstrated the ability of the hand prototype to grasp objects of daily use in a safe way
Published
2018-12-21
Section
Scientific articles