The investigation has been finalized.According to the information provided by the technician, the gas modules have been replaced and the issue has been solved.The device passed all performance tests and could be returned to clinical use.Moisture in a gas module as previous investigation has shown may affect the electronic inside the gas module.According to the users' manual, maximum levels of water, (h2o < 7 g/m3) in the supplied gases to the ventilator must not be exceeded.The gas module regulate the gas flow and a fault in the gas module may lead to inaccurate gas flow regulation.This will be detected during system checkout and alarms will be activated if the failure occurs during treatment.The issue has been assessed as usability related, the user did not disconnect the supply hoses before cleaning maintenance was performed.Why the user did not disconnect before cleaning has not been determined.The correction of field #h8 usage of device was required.This is based on the internal evaluation.#h8 usage of device: previous usage of device: unknown.Corrected usage of device: reuse.
|