Tip Flexibility / Tip Stiffness
Determine the flexibility of the guidewire tip by measuring the buckling deformation force.
The device is placed into a strait path with the stiffness fixture at the distal end of the path. The device is advanced across the fixture until the specified length of the device is exposed from the path. The load cell is then used to bend the device against a normal or oblique wall, to the specified angle while measuring the force. 3 tip span lengths are tested at 2 different angles.
– Calibrated dynamometer
– Stepper motor
– Data acquisition system
– Calibrated gauge block
– Tip flexibility fixtures
- Maximum, minimum and average force
FDA Guidance: Coronary, Peripheral, and Neurovascular Guidewires – Performance Tests and Recommended Labeling
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