ASTM F2606 Three-Point Bending Balloon Expandable Vascular Stents and Stent Systems
ASTM F2606 "Standard Guide for Three-Point Bending of Balloon Expandanble Vascular Stents and Stent Systems" provides guidelines for quantitatively characterizing these products. It provides data that can be used to compare the flexibility of different products by direct comparison of load-deflection curves and by comparison of calculated slopes of the curves.
The standard calls for a specific three-point bend fixture. The upper load applicator and the lower static supports must have a radius of 6.35 mm. It is recommended that they are designed to minimize friction by using low-friction materials (like Delrin) or by allowing support rotation through bearings. The fixture shown at the right is our standard miniature three-point bend fixture, which is not manufactured using any special materials or bearings for friction reduction. However, these materials can be modified and changed to a customer's specific needs.
Further, if testing in a bath is required, which would be the case if the specimens are sensitive to temperature change from ambient to 37° C or to hydration, then the fixture can be supplied in stainless steel to prevent rust. The fixture can be easily adapted to our standard BioPuls™ Bath, which can maintain physiological conditions of 37° C +/- 1° C.
We recommend Bluehill® Software with the test profiler module to load and unload the specimen, and to obtain a typical hysteresis curve. The software can provide for the load-deflection data on both segments of the curve, as well as a variety of additional calculations, such as slope, that will allow for direct comparison of a variety of different specimens.
The BioPuls submersible pneumatic side action grips and temperature-controlled bath with pneumatic lifting and lowering mechanism is the ideal testing solution for a wide variety of biomedical testing applications.
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Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: and Instron Connect – a new feature that provides a direct communication link to Service. Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.
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5940 Single Column universal testing systems are ideal for low-force, low-capacity testing up to 2 kN. They are commonly used to test medical devices and biomaterials, textiles, elastomers, food, small components and microelectronics, wire, paper, and plastic film.
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5960 Dual Column Series are versatile universal testing instruments for mid-range testing up to 50 kN. They are commonly used for plastics, metals, rubber materials, automotive components, composites and non-ambient temperature applications.
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