Single Cantilevered Bend Fixture
With cantilevered bend test fixtures, the proximal end of the specimen is fixed while an orthogonal displacement is applied to the distal end. As a result the portion of the device near the fixed end experiences bending.
Double Cantilevered Bend Fixture
In some instances both ends of the device are fixed while their centerlines are displaced. This double cantilevered approach imparts bending near both ends of the specimen. Representative photos of both the cantilevered and double cantilevered test fixtures are shown.
The fixtures are designed to apply cantilevered bending across multiple samples at a customizable radius of curvature, angle or displacement. The fixture is particularly well suited for renal stent testing or device indications that require simulation of the breathing cycle. The cantilevered bend fixtures are designed to be used in a PBS bath at 37°C or with a flow loop and recirculating pump.
The relative displacement of the orthogonally moving end can be measured using either the test instrument displacement transducer or a laser micrometer. The laser micrometer can be configured to to measure the bend displacement of each stent at predetermined positions along its length.
Contact us with your specific test requirements and we will provide an estimate for creating the desired bending you are looking for.