ISO 11491: Implants for surgery – Test method for impact resistance of ceramic femoral heads for hip joint prostheses
This international Standard specifies a test method for determining the impact resistance of ceramic femoral heads for hip joint prostheses. The Standard can be used for the purpose of material development, material comparison, quality assurance, implant system characterization, reliability analysis and design data generation.
Impact resistance is determined by applying impacts of increasing energy to the head/taper construct and identifying the maximum energy that does not result in fracture. Alternatively, the impact load may be determined by quasi-static load-release cycles identifying the maximum load that does not result in fracture.