It was reported that there was a crack on the filter.One sample model 10010454 was returned for investigation.The set was examined for defects and abnormalities.A crack was seen going down the middle of the filter.No other defects or abnormalities were observed.The customer complaint was verified and a quality notification was sent to the supplier.From the supplier investigation, the investigation determined that vents with compromised hydrophobic properties can create an airlock condition inside the filter increasing internal pressure if air cannot be vented efficiently.Potential scenarios exist from treatments and exposures that occur post filter assembly that can compromise proper vent functionality.These exposures could include contact on the vent with tube bonding solvent, gamma irradiation or other sterilization exposures, and/or low surface tension fluids, especially those that may contain elements of alcohol or lipids that may inhibit air venting resulting in internal pressure increasing.A device history record review for model 10010454, possible lots number 24025004, 24025559 was performed.There were no quality notifications issued for the failure mode reported by the customer during the production build of this set.
|