Abstract

In the condition of the insufficient number of PT, the novel wearable rehabilitation devices using a soft pneumatic actuator for the elderly are actively proposed and developed. In the previous study, a wearable wrist rehabilitation device based on a flexible robot arm using three flexible pneumatic cylinders was proposed and tested. In this study, the improvement of the device is carried out so as to use it without limitation of attitude of patient’s arm. The attitude control of the improved device based on the analytical model is also carried out. As a result, it is confirmed that the device can give the motion to patients with any attitude of their arm according to the desired position.

Highlights

  • Based on the situation of aging society and decreasing birth rate[1],it becomes serious concern that the number of welfare workers and physical therapists (“PT” for short) is not enough

  • The wrist rehabilitation device based on the flexible robot arm using three flexible pneumatic cylinders [6] was proposed and tested

  • In order to use it while the device is not fixed on the table, the improvement of attitude control system of the Fevice is required

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Summary

Introduction

Based on the situation of aging society and decreasing birth rate[1],it becomes serious concern that the number of welfare workers and physical therapists (“PT” for short) is not enough. The wrist rehabilitation device based on the flexible robot arm using three flexible pneumatic cylinders [6] was proposed and tested. In order to supply the compressed air from the base stage to the end stage, a coil type tube that covers on a flexible pneumatic cylinder was used. By this method, the device requires only an electric power cable and an air supply pipe to drive it. The total mass of the device including a controller and six quasi-servo valves is 1.14 kg

Attitude control system of tested device
Attitude control result of the device
Improvement of wearable wrist rehabilitation device
Conclusions
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