Mr. Robert Earl Profile

Robert Earl

at McGill Univ

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Proceedings Article | 19 April 2022 Presentation + Paper

Nondestructive ultrasonic quality testing of endovascular devices

Robert Earl, Richard Leask, Paul Fromme

Proceedings Volume 12048, 120480R (2022) https://doi.org/10.1117/12.2614511

KEYWORDS: Ultrasonics, Nondestructive evaluation, Safety, Medical devices

Read Abstract +

Endovascular medical devices such as catheters are composed of multiple thermal plastic components joined by butt-welding. High quality joining of components is required to ensure patient safety. The current practice for assuring quality is limited to process validation and destructive testing. An ultrasonic system for endovascular weld inspection was developed to detect faults (porosity and contamination) post welding in polyamide (Pebax-72D). Results from angled ultrasonic measurements were compared to micro-CT and found to correlate well with weld quality as a potential non destructive index for 100% in-line verification of the joining process.

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