Device analysis: product analysis concluded a pump malfunction based on the identification of a pump functional test failure.The pump failed the inflation test and did not transfer a sufficient amount of fluid to fully inflate the cylinders.Although an allegation related to a "fluid leak" with the cylinders was reported, based on the cylinders performing within specification, the pump was concluded as the most probable cause of the reported events.An inflation issue with the pump would result in the cylinders not sufficiently inflating and could present as a fluid leak to the user.The cylinder investigation did not identify any abnormalities nor device malfunctions; the cylinders performed within specification.The identified pump malfunction is therefore concluded as the most probable cause of the reported events as an inflation issue would result in the device operating different than normal and could present as a leak as the cylinders would not fully inflate with this malfunction.The product record review indicated that the reported events do not represent an unanticipated event.Review of the manufacturing documentation confirmed all required in-process and final inspections and testing were completed.Based on this investigation, the investigation conclusion code of cause traced to component failure was chosen because the reported events could be traced to a component failure through product investigation.Based on the results of this investigation, no escalation is required.
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