Clinical investigation: there is a temporal relationship between pd therapy on the liberty select cycler with the fmc cassette and the patient event of not feeling well with subsequent hospitalization with possible infection.However, there is no documentation in the complaint file to show a causal relationship between the patient event and use of the liberty select cycler.Although it was not confirmed, all pd patients are at increased risk of infection due to a compromised immune system.There are several causes of infection in the peritoneal cavity other than pd including abscess, pancreatitis and diverticulitis.Based on the available information and no allegation of a malfunction, deficiency or defect, the liberty select cycler and fmc cassette can be excluded as the cause of the patient not feeling well with hospitalization and possible infection.Plant investigation: the sample was not returned to the manufacturer and the lot number was not provided.A manufacturing review was performed on the products shipped to the patient for the three (3) month time frame which immediately preceded the event occurrence date.This review included the lot numbers for all fresenius liberty cycler sets shipped to this account within the selected time frame.The entire set of lots have been sold and distributed.There were no non-conformances or abnormalities identified during the manufacturing process which could be associated with the reported event.An investigation of the device history records (dhr) was conducted and confirmed that the results of the in-progress and final quality control (qc) testing met all requirements.The product lots involved met all specifications for release.A review of the dhr did not reveal a probable cause for the customer complaint.As a physical evaluation could not be performed, a definitive conclusion regarding the reported incident could not be reached and a cause could not be confirmed.
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