The rapid infuser was returned to belmont for investigation and underwent testing according to our standard operating procedures, and stress testing at elevated temperatures for 48 hours.We were unable to duplicate the customer complaint that the flow rate was changing on its own.The display and membrane switch were found to be functioning properly; the unit performed according to specification.However, upon reviewing a video provided by the user facility we were able to confirm that the touchpad was not always activated by the user's touch, therefore, we replaced the gathering board and the membrane switch in the system as a precaution.Fluid contamination can cause problems with the membrane switch/cpu board interface, which may resolve itself once the fluid has dried.The operator's manual cautions the user: "immediately wipe any spills from the device." the service and preventive maintenance schedule outlined in the manual also instructs the user to check the unit seals every six months.The manufacturing and service records for this serial number were reviewed and no anomalies were identified.Without the ability to reproduce the reported problem, a root cause could not be determined.No patient injury was reported.Belmont will continue to monitor and trend similar reports of this nature and take further action if required.Should additional information become available, a supplemental report will be provided.
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