The customer reported that the "lid of the chamber" was missing from a 2050-000 drain.Pictures were provided and the drain was returned without any of its original packaging.Upon investigation of the returned drain, it appears that the drain was being set up and water was added to the water seal chamber, but there is no sign the drain was used on a patient.The tethered stopper is missing from the drain, confirming the complaint.There are no signs of damage to the drain or that the stopper's tether broke.The device is missing the stopper and so is not conforming to its specifications.The device nonconformity is confirmed.A dhr review was completed which found no anomalies in the manufacturing process.The quantities of stoppers issued to the manufacturing lot of drains indicated that all stoppers were unaccounted for.The ifu provides adequate instructions for the setup of the device and instructs the user not to use the device if it is damaged.Complaint trending found that the actual occurrence level did not exceed the anticipated occurrence level.No excursions were identified.A complaint history review was completed which found no related complaints.A recurring lot number report was completed which found no related complaints.A review of cars/capas found none related to this complaint.A ncr review found none related to this complaint.A review of scars found none related to this complaint.Both the complaint and the device nonconformity were confirmed in the device evaluation.The dhr review did not identify any anomalies in the manufacturing of lot 471086.The component quantities and scrap quantities indicated that all components were accounted for.No evidence has been identified to suggest the drain left getinge without the tethered stopper.It is not definitively known how this nonconformity occurred, so the root-cause is impossible to define.
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