A T-shaped intraluminal shunt has been utilized during carotid endarterectomy. It is convenient, allows confirmation of shunt patency and flow, and permits monitoring of systemic and internal carotid "stump" pressure without puncturing the arteries.
Brener BJ, Brief DK, Alpert J, Parsonnet V. A T-Shaped Carotid Shunt. Arch Surg. 1975;110(10):1249-1250. doi:10.1001/archsurg.1975.01360160087016