ISO 7206-4 Fatigue Test on Femoral Stem скачать в хорошем качестве

ISO 7206-4 Fatigue Test on Femoral Stem

The ISO 7206-4 standard describes the endurance properties test and fatigue test on stemmed femoral components and neck region of the stemmed femoral components of hip endoprostheses. For the test, the hip endoprosthesis is cemented into a corresponding test fixture and cyclically loaded by means of a dynamic testing machine. The embedment as well as the oscillating load and the number of cycles differ depending on the design and length of the hip endoprosthesis and the part of the standard to be tested. With the LTM, ZwickRoell offers an electro-dynamic testing system that is particularly suitable for this application: The test according to ISO 7206-4 and ISO 7206-6 can be performed with an LTM electrodynamic testing machine. In addition to the standard requirements, higher cycle loads and a higher number of cycles can also be carried out with this testing system. The general mechanical requirements defined in the standard, including the orientation of the hip endoprosthesis to the test load, the embedding height and the load-application angle, can be accurately defined by means of a ZwickRoell embedding device. The custom-designed test fixture by ZwickRoell enables testing in compliance with ISO 7206-4 and ISO 7206-6 standards. The compensating bearing ensures a purely axial load on the femoral stem. The ZwickRoell testing software testXpert R allows you to run user-friendly progressive load tests (Locati tests). The test can also be performed under physiological ambient conditions (e.g. temperature-controlled saline solution at 37 °C) using a ZwickRoell medium container. This is particularly important if the hip implant features conical taper connections in the stem or neck region. 00:00 – Intro 00:09 – Embedding the specimen at the required angle 00:42 – Fatigue test 00:47 – Summary ISO 7206-4 Fatigue Test on Femoral Stem