This follow-up report is submitted to fda in accord with applicable regulations ¿ and as indicated by terumo cardiovascular systems in the initial report submitted to the fda on june 6, 2017.Upon further investigation of the reported event, the following information is new and/or changed: (additional device information - added exp date) (date received by manufacturer) (indication that this is a follow-up report) (follow-up due to additional information and device evaluation) (device evaluated by manufacturer) (device manufacture date) the returned sample was visually inspected.It was confirmed that the thermistor on the oxygenator was missing, with no evidence of chemical residue within the port.It is likely that the thermistor had been inserted into the port of the oxygenator, but never dipped into the chemical to bond it into the port, allowing it to come loose and not be present at the time of use.All available information has been placed on file in quality management for appropriate tracking, trending, and follow-up.
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