Hip Impactor for Total Hip Arthroplasty
The brief of this project was to improve upon the industry standard hip impactor provided by ZimmerBiomet. A hip impactor is used for hip replacement surgery and undergoes large amounts of impact through the surgery.
CAD topology was used during the design process to fully understand the initial design and provide room for improvement for future development. FEA was also used as part of the process to validate models and provide feedback for designs made.
Through the back-and-forth process between CAD and FEA, an improved hip impactor was made. The impactor had improved strength by over 10% while also reducing the weight and material used by 10%.
Skills Used
CAD Design - SolidWorks
With the original product from ZimmerBiomet, a CAD topology was done initially. From there, countless designs were made in attempt to remove material or improve the strength of the device.
FEA Analysis - Ansys
The FEA was done to provide a iterative process for the design and give quick feedback. The FEA was carried out with forces identified in literature to validate the design, preparing it for mechanical testing.
Mechanical Testing
A drop-impact test was carried out on the hip impactor to simulate surgery conditions. Over 1000N of force was used to provide those conditions and the hip impactor was successful through the testing.
