The device was not returned 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 revealed no other similar incidents.The investigation was unable to determine a conclusive cause for the reported noise problem and the difficult to remove.It may be possible that the dragonfly was incorrectly mated to the doc or there was a system issue on the doc causing noise.It also may be possible that the user¿s technique when removing the dragonfly over the guide wire may have contributed to the interaction between the devices, resulting in the reported difficult to remove.However, without having the device to examine, this could 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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