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(b)(4).Method: the subject device, rd900aeu neopuff infant resuscitator was not returned to fisher & paykel healthcare (f&p).Our investigation is thus based on the information and videography provided by the distributor, and our knowledge of the product.Results: visual inspection of the provided videography revealed that the manometer pressure was fluctuating.Conclusion: without the subject device being returned for evaluation, the exact cause of the reported event could not be determined.The neopuff is a portable, reusable device that can be susceptible to impact damage, for instance when accidentally dropped orsubjected to considerable external force.The neopuff technical manual warns against dropping the neopuff or subjecting it to impact damage which may cause the unit to operate incorrectly.If the neopuff is suspected to have been damaged, the manometer and valve system should be performance tested.In addition, the neopuff user instructions state that the user should "check manometer reads zero with no gas flow" and check the pressure settings "prior to every use of the neopuff".As mentioned, the neopuff technical manual states the following: - dropping the neopuff / perivent infant resuscitator or other similar forms of impact may cause damage resulting in incorrect operation of the unit.If you suspect damage to have occurred, please perform checks as outlined [in the manual] before connection to a patient.
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