The user facility reported to terumo cardiovascular that prior to cardiopulmonary bypass, during setup, the faulty temperature probe was unable to register a temperature reading.As per the user facility, they did not change out the product; bypassed the temperature reading and continued with the surgery. no known impact or consequence to patient.Product was not changed out.Procedure was completed successfully.
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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 31, 2019.Upon further investigation of the reported event, the following information is new and/or changed: h6 (identification of evaluation codes 11, 3331, 4114, 3259, 4307).Method code #1: 11 - testing of device from same lot/batch retained by manufacturer.Method code #2: 3331 - analysis of production records.Method code #3: 4114 - device not returned.Results code: 3259 - improper physical structure.Conclusions code: 4307 - cause traced to component failure.The affected sample was not returned for evaluation, so a thorough investigation could not be completed.A representative retention sample from the same product/lot number combination was tested and found to be functioning properly.The root cause of the issue has been determined to be a high insertion force during assembly of the thermistor into the oxygenator module coupled with exposure to extreme temperature fluctuations.All available information has been placed on file in quality management for appropriate tracking, trending, and follow-up.
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