The results of the investigation are inconclusive since the device was not returned for analysis; however, a video was returned and reviewed.Review of the video revealed the catheter sheath was buckling between the guidewire exit port and distal end of the fiber optic lens, which is consistent with the reported event.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed.Based on the information received, the cause of the reported event could not be conclusively determined.
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