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The device is not available for analysis; therefore, no physical analysis of the product could be performed.The reported device performance allegation cannot be confirmed.The device history record (dhr) confirmed that the device met all material, assembly and performance specifications.Based on the information available, the cause that contributed to the reported event cannot be established.A risk review was completed and confirmed that the event of "fiber cap/tip-break" was defined in the risk documentation and is documented accordingly.This event type has been accounted for during product risk analysis to support acceptable risk benefit for the product.There is no objective evidence that the user did not properly handle or use the device according to the instructions for use (ifu).The ifu states: do not use if the fiber appears damaged.If damaged, replace the fiber with a new one.Use of a damaged fiber may result in injury to the patient or injury to the user.Based on all the information available, a conclusion code of cause not established was assigned to this investigation, as it was unable to determine a probable cause for the complaint.
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