By establishing a shunt between the splenic vein and the left renal vein, the 9 5/8" Stoney Spleno-Renal Shunt Clamp is a specialized vascular clamp used in splenorenal shunt procedures, which are commonly performed to manage portal hypertension. This procedure helps decompress the portal venous system and lowers the risk of esophageal variceal bleeding, particularly in patients with liver cirrhosis.