T-tube

On the third postoperative day, the T-tube was removed after cholangiography showed sufficient drainage.

That's on the T-tube at forty percent oxygen."

The defect was sutured over a T-tube.

Also, he popularized a device for biliary drainage that today is known as "Kehr's T-tube".

After CBD exploration a T-tube was positioned, which was removed after 10 days.

He swore. . . . I wanted to flee, but the surgeon ordered me to stay so that he could narrate, in the most sarcastic and derisive tone imaginable, every remedial step; how he was obliged to insert, painstakingly, a T-tube into the previously unnicked and profoundly important common bile duct."