Results: there was no visible damage to the exterior of the penumbra system aspiration pump max 110 (pump max).The pump max was powered on and produced fully adjustable vacuum, with no abnormal noise detected.Conclusions: evaluation of the returned pump max revealed it was fully functional.The complaint could not be confirmed, and the root cause of the complaint could not be determined.The manufacturing records for this lot were reviewed and did not reveal any outstanding discrepancies, design, or quality concerns.
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