Design and manufacture of the Tone - Canceling device for stroke patients

Abstract

This project presents the process of designing and manufacturing a wearable tone-cancelling medical device. When strokes happen half of the body can remain paralyzed and some of the arm muscles become contracted. The tone-cancelling device creates a specified torque-angle profile for a dynamic wrist that cancels the effects of spasticity in the wrist of stroke survivors. The project involves a mechanical study of the relative movement of the hand and the arm through the wrist and all the forces acting in the different points of the device. Moreover this device has been personalized to a specific person. The hand and arm of the author of the project has been scanned with 3D technology in order to adjust the device to him. Finally an economic analysis of the project has been done including all the expenses of the project.