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 july 9, 2019.Upon further investigation of the reported event, the following information is new and/or changed: d4 (additional device information - added exp date).G4 (date received by manufacturer).G7 (indication that this is a follow-up report).H2 (follow-up due to additional information).H4 (device manufacture date).H6 (identification of evaluation codes 4114, 3259, 4315).Method code #1: 4114 - device not returned.Method code #2: 3331 - analysis of production records.Method code #3: 11 - testing of device from same lot/batch retained by manufacturer.Results code: 3259 - improper physical structure.Conclusions code: 25 - cause traced to manufacturing.The affected sample was not returned.A picture was provided and confirms that the thermistor is missing from the oxygenator, however, the level of detail needed to determine a definitive root cause is not available in the picture.A representative retention sample was reviewed and found that the thermistor was inserted and bonded in the port.The most likely cause is the thermistor had no or an insufficient amount of bonding agent applied.This would allow the thermistor to be inserted into the port and remain in the port for a period of time, but not be securely affixed in the port to where it would fall out after packaging.All available information has been placed on file in quality management for appropriate tracking, trending, and follow-up.
|