A stent system and method for use in the prostate gland. The stent is made of a shape memory alloy such as nitinol, and has a low temperature martensite state, with a martensite transition temperature below body temperature, and a high temperature austenite state, with an austenite transition temperature...http://www.google.fr/patents/US6174305?utm_source=gb-gplus-shareBrevet US6174305 - Urological stent therapy system and method