The Design Improvement of Hip Implant for Total Hip Replacement (THR)

Hip implants are artificial joints that are made of metal such as titanium or stainless-steel, and have long stems which penetrate deep into the femur canal to hold them in place. It is generally used when there is biological damage in human hip joint. Research also shows that the number of person that underwent this type of surgical operation is increasing every year especially for the elderly with the age groupof 65 and above. The purpose of this project is to study improvements on hip implant and propose a design that mostly fulfills the aspects for designing a hip implant. There are many aspects to consider in designing hip implant such as stiffness, implant characteristics and size of the implant. Materials are also one of the most important aspects in designing a hip implant because it has a positive relation to the stiffness of the implant. The materials that commonly used are Titanium and Stainless-steel. The analysis was performed by using COSMOSWorks Software. It helped in studying the reliability, failure and optimum stress that the newly designed implant can withstand. In this project, the results showed that the factor of safety (FOS) of teh implant is 1.4.