One-unit of turnpike, model 5640 was returned to vsi for evaluation.On inspecting the product, it was confirmed that the tip was separated.The tip is also twisted and deformed exposing the ptfe liner.The damage on the catheter tip indicates torquing the catheter against resistance.A guidewire used along with turnpike was also examined.The tip of the turnpike was attached to the guidewire confirming separation.A manufacturing record review was completed and no related nonconformances were found.There are no non-conformances related to this lot therefore supporting the device met material, assembly and performance specifications.The most likely cause of the reported event was that the catheter was rotated excessively while the distal tip was fixed.The turnpike ifu warns; "do not rotate the catheter more than two (2) consecutive 360° rotations in either direction if the distal tip is not also rotating and advancing, as it may result in separation of the catheter, damage to the catheter, or vessel injury." the most likely root cause can therefore be related to user error and operational context.
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As reported: physician was performing a complex multivessel intervention in a heavily calcified lesion when the tip of the turnpike spiral broke off.They were able to retrieve the tip and the patient was not harmed.Additionally, the lab manager who reported, stated there was another turnpike spiral tip separation recently, however, she doesn't have specific information.This report is associated to mdr 2134812-2020-00004 and mdr 2134812-2020-00005.
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