A visual inspection was performed on the returned device.The inner and outer member were noted to be stretched.The reported difficult to advance/position and difficult to remove could not be tested due to the condition of the returned device.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 incidents.The investigation was unable to determine a conclusive cause for the reported difficult to advance/remove.Factors which may contribute to difficulty advancing and removing the device in the introducer sheath include, but are not limited to, damage to the stent, damage to the introducer sheath/guiding catheter, introducer sheath/guiding catheter size selection or procedural technique (devices not properly supported or coaxially aligned).In addition, it is likely that interaction of the device with the introducer sheath during advancement and retraction likely contributed to the observed deformation due to compressive stress (kinked inner/outer member) and stretched inner/outer member.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
|