Patent ID: 8323327
Filing Date: 2012-12-04
Classification: A61F

Abstract:
1. A stent delivery catheter system, comprising: a) an elongated shaft outer member having a lumen extending therein and a stent sheath distal portion, and a self-expanding stent which is radially restrained in a collapsed configuration within the stent sheath distal portion and which radially expands from the collapsed configuration to an expanded configuration upon release of the radially restraining force of the stent sheath distal portion of the shaft outer member; and b) a balloon catheter dimensioned for relative axial movement within the shaft outer member, which has an elongated shaft having an inflation lumen and a device receiving lumen, a stent stop fixedly secured to the balloon catheter which is reversibly radially expandable to deploy from a collapsed to a radially expanded configuration, wherein in the expanded configuration the stent stop being configured to prevent longitudinal displacement of the stent within the shaft outer member proximally of the stent stop, and a balloon on a distal section of the elongated shaft having an interior in fluid communication with the inflation lumen such that the balloon is inflatable from a noninflated to an inflated configuration, and which is releasably locked with respect to the shaft outer member and slidably disposed therein in an unlocked configuration, wherein the collapsed stent in the stent sheath distal portion is coaxially disposed around the noninflated balloon and has an inner surface radially spaced from an outer surface of the noninflated balloon.