The customer reported that the multigas unit had no end tidal co2 readings.Nihon kohden's technical services advised that the correct cable was not in use.The unit constantly tried to recalibrate causing the waveforms to flat-line then disappear.Clearing the water trap helped, but the unit worked only intermittently.The unit was in use on a patient, but no patient harm was reported.The customer sent the unit in and it is currently awaiting evaluation.Nihon kohden continues to investigate the reported event.Nihon kohden will submit a supplemental report in accordance with 21 cfr section 803.56 if additional information becomes available.
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The customer reported that the multi gas unit had no end tidal co2 readings.Nihon kohden's technical services advised that the correct cable was not in use.The unit constantly tried to recalibrate causing waveforms to flat-line then disappear.Clearing the water trap helped, but the unit worked only intermittently.The unit was in use on a patient, but no patient harm was reported.The customer sent the unit in and the unit was evaluated by nihon kohden.After extended testing was performed, the reported problem of "intermittent issues with showing entidal co2" was not duplicated, however the gas unit was replaced for precautionary measure.The unit was tested per operator's/service manual and the unit completed 24 hours of extended testing and operates to manufacturer's specifications.
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