This device referenced in this report was returned to olympus medical systems corp.For evaluation.During the evaluation, the reported phenomenon duplicated.There was a pinhole inside the instrument channel and corrosion inside the bending rubber.The pinhole was close to the instrument channel port and the inside wall of the instrument channel was scraped and scratched.The manufacturing record of the subject device was reviewed with no abnormality possibly associated with the reported phenomenon.The exact cause of the reported event could not be conclusively determined, but water or chemical solution may intrude from the pinhole of the instrument channel into the subject device and cause damage to the image unit as there was a pinhole inside the instrument channel and corrosion inside the bending rubber.Possible causes for the scraped and scratched channel are to insert a therapeutic device with scratches or deformation or to insert a forceps while the cup is open.If additional information becomes available at a later time, this report will be supplemented.
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