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The product was not returned to abbott vascular for analysis.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other similar incidents and/or complaints reported from this lot.There was no damage noted to the guide wire during the inspection prior to use which suggests a product quality issue with respect to manufacture, design or labeling did not contribute to the reported difficulties.It should be noted that the electronic instructions for use (ifu) for the guide wire hi-torque infiltrac, cto, fda, states: carefully observe the instructions under ¿do not¿ and ¿do¿ below.Failure to do so may result in vessel trauma, guide wire damage, guide wire tip separation, or stent damage.If resistance is observed at any time, determine the cause under fluoroscopy and take remedial action as needed.Use the most suitable guide wire for the lesion being treated.Do not push, auger, withdraw, or torque a guide wire that meets resistance.Do not torque a guide wire if the tip becomes entrapped within the vasculature.In this case, the reported ifu violation does not appear to have caused or contributed to the reported failure to advance.Additionally, the force used during reaction was required to attempt to remove the device given the clinical situation.The investigation determined the reported failure to advance, difficulty to remove, tip separation and reported patient effect appear to be related to case circumstances of the procedure.Based on the reported information, during advancement, the guide wire encountered resistance with the challenging anatomy causing the failure to advance and likely causing the tip to get caught in the anatomy resulting in the difficulty to remove.Manipulation of the guide wire against resistance during retraction ultimately resulted in the tip separation.The separated portion of the guide wire remains in the patient in an area where it will not bring complications.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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