Manufacturers ref# (b)(4).After investigation the event for this pr370174 is no longer reportable.Summary of investigational findings: reportedly the ¿ivcf would not completely deploy¿.Additional information could not be obtained, but based on the investigation findings it is assumed that the filter would not release from the jugular introducer.The released tulip filter and the jugular introducer inside the blue sheath were returned.The filter and the blue sheath were found according to specifications, but the grasping hook stuck inside the jugular introducer and could not be moved when pressing the release button.It still did not move after soaked in water, why the introducer handle was cut open for investigation, but the release mechanism was found working as intended.However, a lot of hardened blood/contrast in the distal tip of the introducer was found to be the reason for the sticking grasping hook/release mechanism and consequently the reason for the difficulties in releasing the filter.There are adequate controls in place to ensure that the device is manufactured to specifications.It was assessed that because no non-conformances were detected, there is evidence that the dhr was fully executed.In addition, no other lot related complaints have been received from the field.It is therefore concluded that there is no evidence that nonconforming product exists in house or in field.Cook medical will continue to monitor for similar events.This report is required by the fda under 21cfr part 803.This report is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement made in it is intended to be an admission that any cook device is defective or malfunctioned; that a death or serious injury occurred; or that any cook device caused or contributed to; or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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