Results: a pipe cleaner was inserted into the vacuum inlet and revealed blood inside the pump max.The device housing was opened by the penumbra investigator and dried blood was found on the inside of the device housing and vacuum pump.Conclusions: evaluation of the returned pump max revealed blood inside the pump max vacuum assembly.This is likely a result of incorrectly connecting the aspiration tubing directly to the vacuum inlet rather than the canister supplied by penumbra.This would allow blood to enter the vacuum assembly.If fluid is aspirated into the pump max, it will likely prevent the pump from functioning properly.Functional testing was performed and confirmed that the vacuum pump was unable to power on and unable to produce sufficient vacuum pressure.Penumbra pumps are 100% visually inspected and 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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During preparation for a thrombectomy procedure, the hospital staff noticed that the motor of the penumbra system aspiration pump max 110 (pump max) did not produce any sound.The hospital staff checked the power cable connection and turned the pump max on and off multiple times; however, the pump max did not work at all.The issue with the pump max was found prior to use and therefore the pump max was not used in the procedure.The procedure was completed using another suction equipment.
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