It was reported while guiding the wire to the target vessel, the tip lodged itself in a small branch.While pulling the wire back, the wire was felt to be elongating.After three hours the wire was retrieved with a 5fr brite tip sheath coaxially with a 2.6fr cxi catheter.The procedure was completed successfully.The devices and their components were examined after removal and the "spring-like" wire tip was visually confirmed to be elongated/unwound.As reported, the patient did not experience any adverse effects or require any additional procedures due to this occurrence.
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A review of the complaint history, drawings, dimensional verification, device history record, documentation, instructions for use (ifu), manufacturing instructions, specifications, trends, quality control, and visual inspection of the returned device was conducted during the investigation.The reported used device was returned to cook inc.For evaluation.The length of the unraveled coil was 50.5 cm long.The coil was not separated.There was a kink located at approximately 18.5 cm from the distal end of the device (not including the unraveled portion).There was mandril separation.Measurements could not be taken for comparison as the wire was received in a severely damaged and elongated condition.A root cause is unable to be determined.Potentially patient anatomy, manufacturing errors, user technique, etc.Could have contributed to this event.In addition, separation most likely caused the difficulty experienced during retraction of the wire guide.A review of relevant manufacturing documents was conducted.It was concluded that the device aspect in question was visually/functionally inspected by quality control and no notable gaps in production or processing controls were noted.The device history record for lot number 8199415 was reviewed.No non-conformances related to the reported failure mode were noted.A search of our complaint records indicates one similar complaint from the same lot.This failure will continue to be trended, however, at this time, there is no indication from the device history record that there is nonconforming product in the field.Per the [quality engineering] risk assessment, no further action is required.Monitoring will continue to be performed for similar complaints.This report is required by the fda under 21 cfr part 803 and is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement contained herein is intended to be an admission that any cook device is defective or malfunctioned, that a death or serious injury occurred, nor that any cook device caused, contributed to, or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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