Systems for transcarotid artery revascularization

A system for neuroprotection for use during carotid arterial interventions including transcarotid artery revascularization (TCAR), the system comprising:

• an arterial access device comprising an arterial sheath having a distal and a proximal end, and an extension device removably connected to the proximal end of the arterial sheath,
• the arterial sheath comprising:
• (a) a first body having a proximal end, a distal end, a first lumen, and a first hemostatic valve positioned at the proximal end, and
• (b) a second lock portion having a proximal end, a distal end, the second lock portion extending distally from the distal end of the second body, the second lock portion configured to releasably interlock with the first lock portion and
• (c) a defeater configured to pierce the first hemostatic valve and at least partially disposed inside the second body, the Defeater having a proximal end, a distal end, and a Defeater lumen extending distally from a distal end of the second lumen, the Defeater configured to actuate the first hemostatic valve such that, when the extension device is connected to the arterial sheath, the first lumen, the Defeater lumen, and the one lumen form a continuous lumen;
• a venous sheath fluidly connected with the arterial access device, and
• wherein the distal end of the first body of the arterial sheath comprises a footplate configured to seal an insertion point in the carotid artery during the carotid arterial interventions.