(b)(4).Internal file number - (b)(4): during processing of this complaint, attempts were made to obtain complete event, patient and device information.Incorrect anatomy.The device was not returned for evaluation.It should be noted that the instructions for use states: the trek rx coronary dilatation catheters are indicated for balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis, for the purpose of improving myocardial perfusion, balloon dilatation of a coronary artery occlusion, for the purpose of restoring coronary flow in patients with st-segment elevation myocardial infarction and balloon dilatation of a stent after implantation.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.The investigation was unable to determine a conclusive cause for the reported difficulty positioning and removing the guide wire; however, the reported separation appears to be related to operational context due to the reported difficulty removing the balloon catheter from the guide wire.There is no indication of a product quality issue with respects to the design, manufacture, or labeling of the device.
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