The product was not returned for evaluation.Without the return of the device, the root cause of the problem cannot 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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The patient was undergoing a thrombectomy procedure in the m2 segment of the middle cerebral artery (mca) using aspiration tubing (tubing), a penumbra system 3max reperfusion catheter (3maxc), a penumbra system 3max separator (3maxs), a penumbra engine (engine), and a penumbra engine canister (canister).During the procedure, the engine indicator lights were not illuminating.It was reported that the tubing flow switch was in the off position after connecting it to the engine.The physician reset the devices; however, the issue was unresolved.It was confirmed that the engine and canister were functioning properly; therefore, the physician decided to remove the tubing.The procedure was completed using new tubing, the same engine, the same canister, and the same 3maxc and 3maxs.There was no report of an adverse effect to the patient.
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