Hüftgelenkimplantate
alle Verfahren akkreditiert
Drittkörperverschleißtest basierend auf - ISO 14242-1
Die Testung basiert auf ISO 14242-1. Zusätzlich wird die Prüfflüssigkeit mit Drittkörperpartikel kontaminiert.
Aktuelle Prüfverfahren
ISO 14242-1: Implants for surgery - wear of total hip prostheses - Part 1: Loading and displacement parameters for wear-testing machines and corresponding environmental conditions for tests
ISO 14242-2: Implants for surgery - wear of total hip prostheses Part 2: Methods of measurement
In total hip arthroplasty (THA), accelerated wear is observed when third-body particles migrate into the bearing surface. Third-body particles can be bone cement, bone chips, debris generated at modular connections or fragments from previous implant failures. All specimens are tested according to ISO 14242-1 using the EndoLab® hip joint simulator.
Particle concentration, size and material (PMMA, ceramic, bone chip) is defined in cooperation with the customer and shall correspond to worst case conditions. To maintain the third-body particle suspension in the test fluid, each test chamber can be circulated by individual peristaltic pumps.
As an alternative, roughening of the components to a predefined Ra-value can be performed. This method allows for more consistent wear determination as third body particles do not adhere to the surfaces.
