(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).The device was not returned for evaluation.A review of the lot history record and complaint history of the reported device could not be conducted because the lot number was not provided.It should be noted that the absorb gt1 instructions for use states: an unexpanded scaffold may be retracted into the guiding catheter one time only.An unexpanded scaffold should not be reintroduced into the artery once it has been pulled back into the guiding catheter.Subsequent movement in and out through the distal end of the guiding catheter should not be performed, as the scaffold may be damaged or dislodged during retraction back into the guiding catheter.Based on the information reviewed, there is no indication of a product quality issue with respect to manufacture, design or labeling.The investigation determined the reported difficulties appear to be related to circumstances of the procedure.
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It was reported that the procedure was to treat a lesion in the left anterior descending (lad) artery with a 90% angle from the left main to the lad.Pre-dilatation was performed with a 3.0 x 20 mm non-compliant balloon.The 3.0 x 28 mm absorb gt1 delivery catheter was advanced, but it couldn't be advanced all the way to the lesion.The delivery catheter was removed and backloaded into a 6f guideliner and advanced it again, but it still would not go.Resistance was met with the anatomy and the guideliner.An attempt was made to pull the delivery catheter back into the guideliner, but it wouldn't go in all the way.The devices were removed together from the patient.Upon examination of the device, the scaffold was damaged from getting caught on the end of the guideliner.A xience stent was implanted with a good patient outcome.There was no clinically significant delay in procedure and no adverse patient effects.No additional information was provided.
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