New Design Of Knee Locking System For Knee Support Health Device

Bernabas, Kesavan (2019) New Design Of Knee Locking System For Knee Support Health Device. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) New Design Of Knee Locking System For Knee Support Health Device.pdf - Submitted Version Download (739kB)

Abstract

Knee braces are supports to be worn when you have pain in your knee. These are usually used for a period of weeks right after an injury or surgery. They keep the knee stable but still allow limited movement while it is healing. Braces are made from combinations of metal, foam, plastic, or elastic material and straps. They come in many sizes, colours, and designs. ROMknee brace is one of the types of knee braces available in the market. ROM Knee Brace is a custom adjusted ROM brace, which controls and restrict flexion and extension of the knee joint through a hinge module to allow a ROM or immobilization to the knee. It is usually worn by knee injury patients for a certain period after they underwent knee surgery. The hinge module in the ROM knee brace plays an important role in controlling and restricting the ROM of the knee. The hinge module of currently available ROM knee brace in the market needs to be adjusted manually during ROM angle adjustment process. Hence, it is important to explore alternative options for the hinge module design that may serve the same purpose in an easy way. The purpose of this project is to provide an easy handling knee brace’s hinge mechanism during adjusting a desired rotational range in the extension or flexion direction which can be user-friendly and convenient to the user. An easily adjustable solenoid hinge module was developed consisting of 22 components. The design of the solenoid hinge module was developed in Solidworks 2016 software. A set of 5v solenoids is used in this design as a locking mechanism which reduces the manpower during the knob locking process. This solenoid based hinge module concept for ROM knee brace is very new and not available in the market right now. This concept makes the angle adjustment process semi-automatic and easier. There are two types of analysis conducted on the design namely stress analysis and kinematic analysis. Based on the maximum stress and total deformation result from the stress analysis, the design is capable to withstand the external force that might be applied by the user during limiting ROM of their knee. Besides that, the motion of the hinge mechanism joints also has been identified from the kinematic analysis

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