Tovell tube

[tə-vĕl]
n.
  1. An endotracheal tube that has a wire spiral embedded in its wall to prevent obstruction of the lumen when the tube is compressed and to prevent kinking when the tube is bent at a sharp angle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.