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Investigation ¿ evaluation: a review of complaint history, device history record, documentation and specification was conducted during the investigation.The vueoptic 150cm fiber optic bundle was not returned for evaluation and no photos have been provided.Without the complaint device, a physical investigation was not able to be completed.There is no indication that a design or process related failure mode contributed to this event.A review of production and quality documentation did not identify any specific issues with current manufacturing or quality controls that may have contributed to this incident.The device history record was reviewed and no non-conformances were noted.A review of complaint history revealed two additional complaints associated with complaint lot number 5346681.All three complaints are from the same customer.The three complaints from this customer for this device/lot number combination have been captured in mfr.Report numbers 1820334-2017-00835, 1820334-2017-00887, and 1820334-2017-00889.Based on the investigation evaluation, the actual root cause is unknown and no conclusion can be drawn.Per the quality engineering risk assessment, no further action is required.Cook medical has notified the appropriate personnel and will continue to monitor this device via the complaints database for similar complaints.
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