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This supplemental report is being submitted to provide the results of the legal manufacturer's final investigation.Additional information added to fields b5, d5, e1, g2, h3 and h6.A review of device history record and historical complaints analysis was conducted and no deviations that could have caused or contributed to the reported issue were identified.The device was returned to olympus for inspection, and the customer's complaint of blurry image was not confirmed.Based on the results of the investigation, a probable cause was not identified.The suggested event is detectable and preventable by handling the scope in accordance with the following sections of the instructions for use: "chapter 3 preparation and inspection.The equipment prepared before using this endoscope and procedures for inspection of the endoscope and equipment are described in this chapter.3.1 the workflow of preparation and inspection.The workflow of preparation and inspection is shown below.Before each case, prepare and inspect this endoscope as instructed below.Inspect other equipment to be used with this endoscope as instructed in their respective instruction manuals.Should any irregularity be observed after inspection, follow the instructions as described in chapter 5, ¿troubleshooting¿.If the endoscope malfunctions, do not use it.Return it to olympus for repair as described in section 5.4, ¿returning the endoscope for repair¿.Warning: never use the endoscope on a patient if any irregularity is observed.The irregular endoscope may compromise patient or user safety and may result in more severe equipment damage.In addition, it may pose an infection control risk."."chapter 5 troubleshooting.The countermeasures against troubles are described in this chapter.5.1 troubleshooting.If any irregularity is observed during the inspection described in chapter 3, ¿preparation and inspection¿, do not use the endoscope and solve the problem as described in section 5.2, ¿troubleshooting guide¿.If the problem still cannot be resolved, send the endoscope to olympus for repair as described in section 5.4, ¿returning the endoscope for repair¿.Also, should any irregularity be observed while using the endoscope, stop using it immediately and withdraw the endoscope from the patient as described in section 5.3, ¿withdrawal of the endoscope with an irregularity¿.Warning: never use the endoscope on a patient if any irregularity is observed.The irregular endoscope may compromise patient or user safety and may result in more severe equipment damage.In addition, it may pose an infection control risk".Olympus will continue to monitor field performance for this device.
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