At first, I was intended to build a Robotic Exoskeleton as my final project. However, I changed my mind later to build a monitoring and assessement device for knee as a first step for me in the rehabilitation indistry.

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First Idea: Robotic Exoskeleton

The aim of this project is to create a robotic exoskeleton to rehabilitate people after joint replacement surgery faster. I think this project will be important for the medical industry in my country because many joint replacements take place in the tiny island Bahrain annually.

First, I have searched about the human walking sequence to imagine how the Robotic Exoskeleton should move and found this useful image published on ResearchGate:


Based on the walking sequence, there are two parts of the human leg responsiable for the movement process, which are the hip and knee joints. Therefore, two motors will be required to move each leg. The exoskeleton should be made from a heavy material such as aluminum so it can hold the human body.

Second Idea: Knee monitoring device

The project is basically a "Wearable knee assessment and monitoring device". It will be created to help therapists and patients after knee replacement surgery to assess and monitor the knee functionality and capability to move, bend, and rotate. The device will be made in the size of adults' knee. Knee replacement surgery is usually operated when the knee joint is damaged and caused pain. It involves changing the knee with an artificial one.

Refer to the Applications and Implications week page for more information about this project idea.

The project hardware will fit as shown in the poster provided in week 14.


It consists of the following parts:

  • Upper 3D printed case fixed on the thigh contains: first IMU sensor (MPU6050), MCU circuit, bluetooth module (HC-05), lipo battery, ON/OFF switch, and ON LED.

  • Lower 3D printed case fixed on the shank contains: second IMU sensor (MPU6050), vibration motor.

  • Knee sleeve.

  • E-Textile Jumper Wires as explained in this page.