Investigation ¿ evaluation: a visual inspection and functional testing of the returned device was conducted.A document based investigation was also performed.This included a review of complaint history, the device history record, drawings, quality control data, and specifications.One device was returned for investigation.A functional test was performed, and it was noted that when fluid was inserted into the balloon lumen, fluid backflow out of the other lumen, indicating lumen communication.The lumen communication is preventing the balloon from inflating properly.A review of the device history record found no non-conformances that may have contributed to this failure mode.A complaint history search revealed this is the only complaint associated with lot number 8562164.A review of relevant manufacturing documents was conducted.It was concluded that the device aspect in question was visually/functionally inspected by quality control and no related gaps in production or processing controls were noted.This product is 100 % leak tested.Current controls for manufacturing are in place to assure functionality and device integrity prior to shipping.There is no indication that a design process or related failure mode contributed to this event.The conclusion for this device issue has been traced to component failure.Per the quality engineering risk assessment, no further action is warranted.Cook medical has notified the appropriate personnel and will continue to monitor this device via the complaints database for similar complaints.
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