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Patient 1
A REVIEW OF THE OUTSIDE OF THE HANDPIECE WAS PERFORMED. VISIBLE BURN MARKS WERE OBSERVED AT THE PROXIMAL END OF THE SHEATH (WHITE PORTION OF THE HANDPIECE). IT WAS ALSO NOTED THAT A WHITE RING COULD BE SEEN WITHIN THE BURN MARKS SUGGESTING A BREAK AND/OR BEND AT THAT POINT. THE HANDPIECE WAS ATTACHED TO THE LASER FOR TESTING. THE LASER LIGHT DID NOT TRAVEL TO THE END OF THE SHEATH. THE SHEATH WAS REMOVED FROM THE HEAT SHRINK (BLACK PORTION) AND NOTICEABLE BURN MARKS AT THE END OF THE SHEATH WERE OBSERVED. THE LASER LIGHT COULD BE VIEWED AT THE END OF THE KNURLED NUT BUT DUE TO DAMAGE TO THE SHEATH, THE LIGHT DID NOT TRAVEL FURTHER. THE HEAT SHEATH WAS OPENED SO THE INSIDE COULD BE VIEWED. BASED ON ALL OBSERVED DAMAGE TO THE HANDPIECE IT WAS SUGGESTED THAT THE CAUSE OF THE BURNING WAS DUE TO A BEND OR BREAK IN THE SHEATH OVER THE SINGLE FIBER. A DEFINITIVE ROOT CAUSE IS UNKNOWN AND THE INVESTIGATION IS CURRENTLY ONGOING. THIS INVESTIGATION IS CURRENTLY ONGOING. ANY ADDITIONAL INFORMATION WILL BE PROVIDED IN THE FOLLOW-UP REPORT.