It was reported that when advancing the dragonfly opstar imaging catheter over the hi-torque balance middleweight hydro guide wire (bmw), the bmw wire unraveled.The bmw coils separated but the core remain intact.Resistance was felt between the two devices during removal, the devices were removed together as a single unit.There was no clinically significant delay in the procedure and no adverse patient effects.No additional information was provided.
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Visual and dimensional analysis was performed on the returned device.The reported difficulty removing the catheter was unable to be confirmed due to the device condition; however, observed damage to the returned catheter was consistent with difficulty removing.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.A query of the complaint handling database for the reported lot was performed and revealed there is no indication of a lot level quality product issue.The investigation determined that the difficulties were likely related to circumstances of the procedure.It is likely that the guidewire used became damaged, which then caused the difficulty removing the guidewire from the catheter and the subsequent stretching to the guidewire exit port of the catheter; however, this could not be confirmed.While the reported withdrawal issue could not be conclusively determined, it is likely that either the patient¿s anatomical condition(s), guidewire damage, or the guide catheter size affected the catheter withdrawal; however, this could also not be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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