Fig 3.

Syringe setup. To avoid flow arrest when switching from one syringe to another, one should connect 2 syringes in parallel to double aspiration volume and thus aspiration time. The 3-way valve, which is in a locked position, is then connected to the hemostatic Y-adapter of the respective aspiration catheter. Before the thrombectomy maneuver starts, the syringes are fully drawn and locked to generate vacuum pressure, while the 3-way valve is still in a locked position. When the thrombectomy maneuver starts, the 3-way valve is set to be open for both syringes at the same time, thereby doubling aspiration volume and thus aspiration time.