Gouley's catheter

Gou·ley's catheter

(gōō′lēz)
n.
A solid, curved steel instrument grooved on its inferior surface so that it can be passed over a guide inserted through a urethral stricture.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.