Patent ID: 6056759
Filing Date: 2000-05-02
Classification: A61F

Abstract:
A stent delivery system for implantation of an expandable stent in a bodily lumen of interest comprising:(a) an elongate flexible catheter having distal and proximal ends;(b) at least one fluid-operated, generally cylindrical tubular sleeve for placement over and retention of a stent in a delivery configuration prior to release, said sleeve being axially adjustable relative to said catheter and said stent and having a closed end and an open end for release of a contained stent;(c) an expandable stent having a proximal and distal end and being collapsible about said catheter to a delivery configuration of reduced diameter along the length thereof;(d) fluid supply system for supplying infusing fluid into said sleeve; and(e) integral fluid driven operating mechanism for axially adjusting said sleeve along said catheter, wherein said closed end includes a first seal between said catheter and said sleeve and moveable with respect to said catheter and a second seal between said catheter and said sleeve spaced from said first seal and moveable with respect to said sleeve and a fluid infusion port in said catheter for infusing pressurized fluid between said seals for causing said sleeve to move in the direction of said closed end.