Visual analysis was performed on the returned device.There was no information reported regarding the issue with the device.There was corrosion on the sensor chip.There was also a material separation located at 9.6 cm from the proximal end of the pressurewire, where the torque device was also securely clamped.However, the separation was still held together by the corewire, and there was no separation on the corewire and the microcables.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 indication of a lot specific product quality issue.The investigation could not determine the cause of the unknown issue due to insufficient information.The noted corrosion was likely due to the interaction between the liquid and the device during post-procedure handling since the device was returned wet.Meanwhile, an excessive force while using the torque device, likely caused bends/kinks during use which could lead to the noted material separation.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
|