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The device was returned to olympus, testing and inspection found that the device had no image.This complaint is most likely the result of a broken image sensor.Testing and inspection also found the following: the customer¿s complaint was confirmed, due to wear of the angle wire, the bending angle in the up direction became longer than normal.The investigation is ongoing; therefore, the root cause of the reported event cannot be determined at this time.However, if additional information becomes available this report will be supplemented accordingly.
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This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the investigation, the root cause of the event was unable to be identified.It is likely the image sensor unit has been damaged (disconnection, etc.), or the mounted parts (ic chip, capacitor, etc.) of the electric board have failed due to use stress, external factors, or handling.The inspection method for the event is described as follows in the instructions for use (ifu) "chapter 3 preparation and inspection 3.8 inspection of combination function with related equipment".[inspection of endoscopic images] check that normal light observation and nbi observation images (excluding bf-mp290f) are projected properly.1 observe the palm, etc.Using normal light observation images and nbi observation images (excluding bf-mp290f).2 confirm that the illumination light is emitted.3 adjust the light intensity to an appropriate brightness.4 check that there are no abnormalities such as noise, blurring, or cloudiness in the normal light observation image and nbi observation image (excluding bf-mp290f).5 operate the ud angle lever of the endoscope to bend the curved part.6 operate the insertion tube rotation ring of the endoscope to rotate the insertion tube.7 check that normal light observation images and nbi observation images (except for bf-mp290f) do not disappear for a moment.8 align the up index on the insertion tube rotating ring with the up index on the operation unit." olympus will continue to monitor field performance for this device.
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