(b)(4).The complaint rd900 neopuff infant resuscitator was not returned to the fisher & paykel healthcare (f&p) for evaluation.Our investigation is thus based on the initial information reported by the customer.The customer reported that the peak inspiratory pressure (pip) valve's adjustment knob of the complaint rd900 neopuff infant resuscitator is broken.We are unable to determine what has caused the reported event without the complaint device.The neopuff is a portable, reusable device used to assist in the delivery of respiratory breaths to an infant until adequate spontaneous breathing occurs.Being a portable device, the neopuff can be susceptible to damage, for instance when accidentally dropped or subjected to considerable external force.The physical damage reported was most likely due to impact to the subject neopuff unit.It must also be noted that the subject neopuff is more than 12 years old.The neopuff technical manual states the following: "dropping the neopuff 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." each neopuff unit is assembled and 100% tested in the production line to verify that each unit conforms to critical product specifications.Any unit that fails is rejected.
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