The sample was not provided for evaluation; however, a photo of the affected product was received from the customer.The photo showed the oxygenator and reservoir set up for a case, with the purge line connected to the reservoir lid.The one-way valve could be seen flowing in the direction towards the oxygenator, when the proper direction should be flowing towards the reservoir.The clamp was in the correct location on the purge line; therefore, the valve was built into the line in the wrong direction.A retention sample from the same product code/lot number combination was visually inspected and it was confirmed that the one-way valve was built in the proper direction on the purge line.(b)(4).Method: device from reserve sample evaluated; photographic inspection; manufacturing review.Results: assembly problem.Conclusions: maintenance deficiency.All available information has been placed on file in quality management for appropriate tracking, trending and follow-up.
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