Figure 2.

Illustration of the Aspiration–Retriever Technique for Stroke in a middle cerebral artery M1 occlusion. (a) The Max ACE aspiration catheter is navigated into the patent segment of the middle cerebral artery to face the thrombus. A stent retriever device is placed across the thrombus and allowed to intercalate within the clot. Before activating the Penumbra aspiration pump apparatus the balloon guiding catheter, if used, is inflated. (b), (c) When resistance is felt while retracting the stent retriever, the entire assembly (5 Max ACE aspiration catheter and the partially resheathed stent retriever) is locked and slowly withdrawn under continuous aspiration with additional flow arrest.