Exemption number e2016032.(b)(4).Summary of investigational findings: investigation is base on description of event and returned product.The jugular introducer was returned.No damage was found on the grasping hook and it moved freely when pressing the release mechanism.Also, after attaching a testing filter to the grasping hook, it worked as intended and the filter released without difficulties.Based on these findings the exact reason for the difficulties encountered cannot be determined, but it is known from the literature that excessive back tension could result in deployment difficulties/failure when pressing the release button.The ifu addresses the issue through the statement "while keeping slight back tension on the introducer, push the release button completely to ensure proper release of the filter" and the warning "excessive tension during deployment may prevent the filter from releasing when the release mechanism is activated".No evidence to suggest that this device was not manufactured according to specifications cook medical will continue to monitor for similar events.
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