Patent ID: 8177831

Claim:
A stent delivery device for delivering at least one stent to a treatment site, the device comprising: a catheter shaft having a proximal end and a distal end; an expandable member coupled with the catheter shaft near the distal end; at least one stent slidably positionable on the expandable member; and at least one axially movable sheath disposed over at least part of the expandable member and stent thereon, wherein: the sheath is axially movable relative to the catheter shaft to expose at least a portion of the expandable member without exposing the stent; the exposed portion of the expandable member is expandable to dilate a lesion at the treatment site without expanding the stent; a length of the exposed portion of the expandable member is selected in situ; and the sheath is also movable to expose at least a portion of the stent to allow it to expand.