|
Stent features unique memory capability and super compatibility and corrosion resistance. It turns into a softened status in an ice water bath at 0-10℃ and can therefore change its shape to a certain degree. The stent is then sent to the sticture location inside the body by an introducer. It is capable of reassuming its original shape immediately and a continuous mild radial expanding force exerting on the inner wall of urethra is generated such that an unobstructed way at the formally stricture segment is guaranteed and a close stick with the urethra wall is effected which facilitates the embedding of mucous membrane and promotes the coverage of epithelial cells so that stone formation is prevented. |