Mfr completed the entire form.Device eval: one used anesthesia breathing bag was returned for eval.Visual inspection of the returned sample observed several tears in the bag material, as well as a weakening of the material near the bag's bushing.The tears and weakening of the material were found to be consistent with the device having been exposed to excessive light, heat, and/or humidity during storage.A review of the device history record revealed no defects or discrepancies related to the reported issue.Additionally, mfg conducts 100% visual inspection of these device during assembly and had the device been torn or worn at that time, it would have been detected and scrapped.There was no evidence found to suggest the event was caused by an intrinsic defect in the product.(b)(4).
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