Sengstaken-Blakemore tube [Robert W. Sengstaken, American neurosurgeon, b. 1923; Arthur H. Blakemore, American surgeon, 1897–1970] , a thick catheter having a triple lumen and two balloons, used to produce pressure by balloon tamponade to arrest hemorrhaging from esophageal varices. Attached to a tube, one balloon is inflated in the stomach and exerts pressure against the upper orifice. Similarly attached, another longer and narrower balloon exerts pressure on the walls of the esophagus. The third tube is used for withdrawing gastric contents.