(b)(4).The device history record (dhr) review for this intellicart system noted no related non-conformances, requests for deviation (rfd), change notices (cn), or any other issues with manufacturing.The dhr review found no issues with the device and all verifications, inspections, and tests were successfully completed.The device was noted to have not been previously repaired by zimmer biomet surgical.Replite was contacted about the cart and dispatched a service technician to be at the site.The technician arrived at the site on 31 oct 2017 and tech could not reproduce the reported issue.The technician ran wash cycle and verified level sensor calibration and then verified that the unit was functioning as intended.The technician then returned the unit to service without further incident.The device was tested, inspected, and repaired without any repair checklist.The service technician was unable to reproduce the reported event.Therefore, based on the information provided, a specific root cause of the reported event cannot be determined.The investigation was based on the information that was provided initially and any information that was obtained throughout the follow-up process.
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