Manufacturers ref#: (b)(4).Summary of investigational findings: the user advanced igtcfs-65-jp-jug-tulip to the desired position and he pushed the release button, but the filter was not released.He pushed the button several times, but the filter was not released.Another device was used instead, and the procedure was completed.There has been no adverse effects to the patient.Introducer dilator, sheath and tulip filter were provided for product evaluation.Blood/biological matter was present.The sheath had kinks, a mark was noticed, and it looks like a scratch from the inside of the sheath.The tip of the sheath had some dents.Per the product evaluation, it is unknown what may have caused the reported adverse event.Review of device history record showed no evidence to suggest that the device was not manufactured according to specification.According to instruction for use excessive force should not be used to place the filter.Based on the information and product evaluation it has not been possible to establish the likely cause of event, but excessive back tension could result in difficulty for the release mechanism which caused the filter not to be released.Cook medical will continue to monitor for similar events.This report is required by the fda under 21 cfr 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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