Results: the inlet port for the power cord was damaged.The penumbra system aspiration pump max 220v (pump max) was opened by a penumbra investigator and corrosion was observed on the piston crown in the outlet cylinder.Conclusions: evaluation of the returned device revealed that the pump was functional.The pump was plugged in and powered on and generated vacuum.The pump was opened by the penumbra investigator and corrosion was observed on the piston crown of the outlet cylinder.The observed corrosion may have caused the piston to seize inside the cylinder.It is likely that the seized piston became freed-up during transit, allowing the pump to function during penumbra evaluation.Further evaluation revealed the inlet port of the power cord was damaged.The root cause of this complaint cannot be determined.Penumbra pumps are 100% functionally tested during incoming quality inspection.The manufacturing records for this lot were reviewed and did not reveal any outstanding discrepancies, design, or quality concerns.
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The patient was undergoing a thrombectomy procedure using a penumbra system aspiration pump max 220v (pump max).During the procedure, the pump max was switched on, however, no vacuum was produced.The procedure was completed by manual aspiration using a syringe.There was no report of an adverse effect to the patient.
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