It was reported that the dragonfly optis imaging catheter was purged normally.It was attempted to be used in the right coronary artery lesion with 90% stenosis, moderate tortuosity, mild angulation and mild calcification.When the live view was selected before a pullback, the in vivo image appeared dark.Due to the dark image, the physician suspected an air leak in the dragonfly.Purging of the dragonfly catheter was thought to be insufficient so the catheter was removed from the patient and purged a few times outside of the patient, but the issue persisted.Another catheter was used to continue and complete the procedure with no adverse patient consequences.The physician thought the issue might be due to the dragonfly itself since the catheter was purged normally.No additional information was provided.
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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 identified revealed no other complaints reported from this lot.Based on the information provided, a definitive cause for the imaging issue and air/gas leak could not be determined.It is possible that improper syringe preparation may have occurred such as retracting the syringe during preparation causing air to take up space in the syringe or the syringe not being fully tightened, causing air to enter the device.It is possible that inadvertent rupture/damage may have occurred causing air to enter the device; however, without having the device to examine, this could not be confirmed.Based on the reported information, the suspected air leak may have contributed to the reported imaging issue.Potentially, inadvertent damage may have occurred on the optical fiber resulting in the reported imaging issue; 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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