骨科植入物的衝擊測試
當人體關節存在最小的力矩時,會導致骨關節炎的發生。缺乏關節運動會導致關節進一步的損傷和機能障礙,骨科植入物設計用於更換受損的關節,提升人體患處的活動性。例如,用於髖關節、膝關節、肩關節或肘關節植入物通常由不銹鋼製成。這種骨科植入物的製造商必須對自身生產的元件(各種植入物)進行測試,以便瞭解產品的耐衝擊性特徵。
Instron 9450 能夠優秀地滿足這種測試需求。由於各個身體部位適用的植入物具有不同的形狀和尺寸,因此必須使用各種客製的固定裝置進行測試。我們使用栓接在9450底部的T型槽板。客製化固定裝置上帶有夾緊的膝關節植入物,安裝在儀器底部的T形槽板上。採用一個45 kN帶有應變計的錘頭對膝關節植入物進行衝擊,資料擷取系統(DAS)和Bluhill Impact 軟體與落錘衝擊器搭配使用,以便擷取力量/速度資料,並對衝擊性能進行分析。
此外,也可採用圖中所示的通用板來代替T形槽板。使用這些多功能板之後,製造商可以靈活地根據自身需求來安裝多種客製固定裝置。在實際的外科流程中,這種衝擊測試在一定程度上可以進行客製,再現現實生活中的低速和高速衝擊。
註:客戶實際的測試設置為商業機密,因此並未展現在此應用說明。
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Instron Drop Towers are used to develop, fine tune, and validate material models. Testing materials under real impact conditions is a crucial step prior of product design. Using the characterization data obtained with the Instron 9400, coupled with customer supplied high-speed video, you can have confidence in your results and deliver new materials to your customers faster. Our Drop Tower impact systems, fixtures, and tups are designed to meet a wide range of applications and testing standards including: ISO, ASTM, ANSI, Airbus, Boeing, BSI, DIN, EN, FDA, Ford, GM, JIS, NASA, GOST, and more.
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9400 Series Dashboard Brochure
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