The patient was undergoing a thrombectomy procedure in the m2 segment of the middle cerebral artery (mca) using a penumbra system red 62 reperfusion catheter (red62), a velocity delivery microcatheter (velocity), a benchmark bmx96 access system (bmx96), a stent retriever and a guidewire.During the procedure, the physician advanced the stent retriever using the velocity and the red62 to the target location.The physician then removed the guidewire and the velocity and trapped the clot inside the stent retriever.It was reported that the physician corked the stent retriever outside the red62 and then removed the stent retriever and the red62 together.Upon removal, the distal end of the red62 was noticed to be fractured but remained connected.The procedure was completed at this point and thrombolysis in cerebral infarction (tici) grade 3 was achieved.There was no report of an adverse effect to the patient.
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Evaluation of the returned red62 confirmed that the device was fractured.Evaluation also revealed that a non-penumbra stent retriever was retracted into the red62.If the stent retriever and red62 are forcefully manipulated against resistance during retraction, damage such as a fracture may occur.Penumbra products are visually inspected during in-process inspection and during quality inspection after manufacturing.The manufacturing records for this lot were reviewed and did not reveal any outstanding discrepancies, design, or quality concerns.H3 other text : placeholder.
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