Investigation - evaluation: klinikum landsberg a.Lech (germany) informed cook that the wire guide in a c-tqts-1200 (thal-quick chest tube set) from lot 7820419 unraveled during a chest drain placement on (b)(6) 2019.The customer reported that the wire separated when it was withdrawn through the chest drain obturator (stiffener).The patient did not require any procedures to retrieve the wire, and did not experience adverse effects.A review of the documentation including the complaint history, device history record (dhr), manufacturing instructions (mi) and quality control, as well as a visual inspection of the returned device, was conducted during the investigation.One used and damaged wire guide was returned to cook for evaluation.Upon visual inspection, the safety wire was noted to be broken from the distal weld ball and was protruding through the coil.As a result, the wire guide was elongated from the solder connection to the distal tip.The distal weld ball is present and attached to the coiling.The solder connection appears to be intact.Evaluation of the device did not suggest that it was manufactured out of specification.Additionally, a document-based investigation evaluation was performed.A review of the device master record (dmr) found that adequate inspection activities are in place to address this failure mode prior to distribution.A review of the dhr for the reported complaint device lot (7820419) revealed no recorded non-conformances.However, a review of the wire guide sub-assembly lot recorded non-conformances for a broken solder and for curve damage in which the non-conforming devices were scrapped.A database search found this to be the only event associated with the reported complaint device lot.Reviewing the design history file found that the device is both safe and effective for its intended use.As a result, cook concluded that there is no evidence that non-conforming material exists either in house or in the field.Cook also reviewed product labeling.The complaint c-tqts-1200 was shipped with the instructions for use.The ifu states: "instructions for use 5.When the appropriate drainage site has been identified, advance the soft "j" end of the wire guide though the needle nd into the pleural space.Note: the wire guide should pass through the needle and advance into the pleural space without resistance.8.While maintaining the wire guide position, dilate the tract and opening into the pleural space by advancing, in sequence small to large, the supplied dilators over the wire guide.Introduction into the pleural space is facilitated by rotating and advancing the dilators in line with the wire guide to prevent its kinking.9.With the wire guide still positioned within the pleural space, advance the chest tube inserter/chest tube assembly over the wire guide and into the pleural space.Note: if resistance is encountered during chest tube assembly insertion, determine the cause of resistance and take necessary action to relieve resistance before proceeding.Note: it is important t advance the chest tube assembly into the pleural space in the same line as the wire guide.This will make introduction easier and avoid kinking of the wire guide.10.Remove the wire guide and chest tube inserter, leaving the chest tube in place." based on the information provided, evaluation of the returned device, and the results of our investigation, a definitive root cause was traced to component failure without a design or manufacturing deficiency.The customer informed cook that the wire guide was withdrawn through the chest tube obturator (stiffener) and unraveled.It is possible that when the wire was withdrawn, the "j" curve caught on the stiffener tip and the safety wire separated from the weld ball, resulting in elongation.The appropriate personnel have been notified.Cook will continue to monitor for similar complaints.Per the quality engineering risk assessment no further action is required.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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