Preliminary test of a functional hand orthosis prototype

Abstract

The prescription, design, fabrication, testing and training of orthotic devices are common part of interventions for occupational therapist with physically disabled individuals, with the objective of regaining function and improving occupational performance. However, orthosis for patients with chronic deficits in hand and wrist, as occurs in brachial plexus injuries, spinal cord injuries, and degenerative neurological diseases, is presented as a challenge. This work has the objective to describe the prototype of a new model of functional hand orthosis, known as Functional Glove, and the results of preliminary tests. It was conducted an exploratory study, shared into three phases. In the first phase, it was tested the operation of the biomechanics orthosis part, in the second phase, it was tested the circuit by means of myoelectrical signal, and the third phase, the operation of the entire system of orthosis. The results were satisfactory, demonstrating the proper operation of the Functional Glove as well as its ability to hold objects through the command performed by means of myoelectrical signals. We conclude that Functional Glove has the potential to assist individuals with paralysis in the hand and wrist, improving occupational performance.