Plant investigation: no parts were returned to the manufacturer for physical evaluation.However, an on-site evaluation was performed by a fresenius field service technician (fst).The fst found the machine to be operating within specifications.A records review was performed on the reported serial number.An investigation of the device manufacturing records was conducted by the manufacturer.There were no non-conformances, or any associated rework identified during the manufacturing process which could be related to the reported event.In addition, the device history record (dhr) review confirmed the results of the in-progress and final quality control (qc) testing met all requirements.The investigation into the cause of the reported problem was not able to be confirmed.The machine underwent and passed functional checks, and was found to be operating within specifications.Clinical investigation: there is a temporal relationship between hd therapy utilizing the 2008t machine and the patient event of coding.However, there is no documentation in the complaint file to show a causal relationship between use of the machine and the patient adverse event.Additionally, there was no allegation of a machine malfunction or deficiency and the machine evaluation found no issues.The machine evaluation was completed at the clinic's request due to the patient event.Although the cause of the patient coding during treatment is unconfirmed, end stage renal disease (esrd) patients have a high prevalence of cardiovascular disease.Based on the limited information and no allegation of a malfunction or deficiency, the fresenius 2008t machine can be excluded as the cause of the patient¿s adverse event.
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