|
Investigation: the disposable set was not available for return.A disposable history search for this lot found no reports of failures.The customer reported that the culture was positive for bacillus species.Per literature review of bacillus species - infectious disease and antimicrobial therapy by (b)(6) m.D., m.P.H., bacillus organisms are widely distributed in the environment although the primary habitat is the soil.These organisms are usually found in decaying organic matter, dust, vegetable, water, and some species are part of the normal flora.In the clinical setting, outbreaks and pseudo epidemic have been traced to contaminated ventilator equipment, disinfectant (ethyl alcohol), hospital linen and dialysis equipment.Per internal documentation, the devices terumo bct manufactures to collect, separate, and store blood products are terminally sterilized to a sterility assurance level (sal) of =10-6.Additionally, a sterility assurance system has been designed and employed to ensure this sal will be achieved for every lot of product manufactured.The sterility assurance system employed at terumo bct ensures the disposable device is not the source of contamination.The device history record (dhr) was reviewed for this lot.There were no issues noted in the dhr that would have contributed to teh microbial contamination.All quality labs and sterilization passed.Root cause: a definitive root cause could not be determined.Sources of bacterial contamination include but are not limited to improper venipuncture technique, no blood diversion performed, a compromised needle, and/or post-processing laboratory practices such as qc sampling or handling techniques.The customer did not report a leak in the disposable set that may have pointed toward an instance where bacteria could be introduced.Consequently, the system was found to operate as intended.Additionally, the sterility assurance system employed at terumo bct ensures the device is not the source of contamination.
|