This report for non-fatal serious injury/device malfunction has been stored under the covid-19 pandemic in accordance with the guidance published by fda, postmarketing adverse event reporting for medical products and dietary supplements during a pandemic.The device was returned to olympus medical systems corp.(omsc) for evaluation.Omcs checked the outside of the device, there was no abnormality.When omsc attached the device to the omsc device (clv-s190) and confirmed the work of omsc device (clv-s190), there was no abnormality.The exact cause was unknown; however, omsc assumed a potential cause as follows.The xenon light source using the device did not work properly temporarily by some cause.
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