A stent delivery system for the placement of non-expandable stents in the urethra is described. The delivery system is generally composed of a catheter with a stent mounted near the distal end of the catheter. The stent is held in place by a balloon or mechanical mechanism....http://www.google.ca/patents/US7507247?utm_source=gb-gplus-sharePatent US7507247 - Urethral catheter stent delivery system