Carefusion complaint number (b)(4).(b)(4).Results of investigation: a carefusion field service representative (fsr) evaluated the device onsite.The fsr was presented with the 3100a ventilator with the patient circuit attached.The fsr was able to power up and operate the ventilator with settings reported by the customer.The fsr found the amplitude on the performance check out of specification due to the driver displacement indicator calibration being out.The fsr checked the frequency and % inspiratory time calibrations, driver controller and power module calibrations, and transducer calibrations.The fsr performed the driver displacement calibration.The unit is operating within factory specifications and the fsr was unable to duplicate the reported issue.
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The customer reported that the power knob was at 9.4, the oscillator overheat light was on, and the customer could not center the piston, while the device was in use on a patient.The customer could smell the unit starting to overheat and the patient had a bad abg result.The patient was switched to another unit.The customer evaluated the unit after the incident and the unit passed the pre-use patient circuit calibration and performance check and the customer was not unable to duplicate the issue.
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