Multi-Flexor

 

Author: TAN Hock Guan Adrian, Akshay MATHUR
Last Update: 10 July 2006

 

PROJECT DESCRIPTION:

Summary

Multi-Flexor is a compact, modular, and portable mechatronic device used to provide Continuous Passive Motion (CPM) to the wrist and elbow joints after the surgery in order to regain the range of motion and avoid formation stiffness in joints because of immobilization.

 

Introduction

CPM machines are used postoperatively to regain the range of motion. Existing CPM machines are quite bulky and cannot be used in inpatient or outpatient basis. However, the therapists are facing the following problems:

1. Precise control over motion parameters like range of motion, speed, pause time at end angles, duration.
2. Existing mechanism are quite bulky, immobile and costly.
3. A single device cannot be used for all the exercises (like flexion/extension, abduction/adduction, pronation/supination) of wrist and elbow joints.

This project aims to design a compact, modular and portable mechatronic device for wrist and elbow rehabilitation which can be used for all the exercises of wrist and elbow joints.

 

Design

• Compact size of the modular mechanism to support exercise on outpatient basis.
• Adjustable links to support all the exercises for wrist and elbow joints.
• Microchip's PIC microcontroller based programmable controller to adjust and precisely control the passive motion according to the patient's injury level.
• User-friendly user interface for easy programming of the device. The programming can be done even by the patient in case of outpatient basis exercise.

 

Advantages

• Ability to do all the exercises for wrist & elbow joint:
  • Flexion/Extension
  • Abduction/Adduction
  • Pronation/Supination
• The device is of compact size so that it can be carried with the patient during tours.
• Precise control over exercise parameters including speed, end angles, pause time at end angles and number of rounds for exercise.

 

GRANT:

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PERSONNEL: