A review of the returned sample found the metal stiffener was found stuck in the catheter and the catheter was curled.Biological material was found inside the metal stiffener when removed.The event description explains that the issue occurred during preparation, so a possible cause could be that the dried biological material found on the metal stiffener caused the resistance experienced by the user.Once the component was cleaned, the catheter was able to advance in the device without any resistance.
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