Fluid actuated stent delivery system

The present invention relates generally to the implantation of stent prostheses in body lumens and to delivery systems for transporting and accurately deploying or releasing such stents. More specifically, the invention is directed to a mechanism method for delivering and deploying a self-expanding stent utilizing a fluid-operated containment and releasing system. A delivery system for procuring implantation of an expandable stent in a bodily lumen of interest is disclosed including a fluid-operated moving cylinder sleeve for retaining the stent in place during delivery retracting to release a stent at the implantation site.