Patent ID: 8764816
Filing Date: 2014-07-01
Classification: A61F

Abstract:
1. A deployment system for a self-expanding stent, comprising, prior to initiating deployment of the self-expanding stent, a self-expanding stent having a length extending between proximal and distal ends and having a smaller compacted diameter prior to deployment and a larger deployed diameter; a first tubular sheath having a first length portion that coaxially surrounds at least a substantial portion of the length of said compacted stent; and a second tubular sheath that coaxially surrounds the first length portion of the first tubular sheath and the substantial portion of the length of the compacted stent; and a second length portion of the first tubular sheath that everts back over and coaxially surrounds: the second tubular sheath, the first length portion of the first tubular sheath and at least the substantial portion of the length of the compacted stent; wherein the application of tension from a proximal direction to a proximal end of the second length portion of the first tubular sheath causes the first length portion of the first tubular sheath to progressively evert over the distal end of the second tubular sheath as the second tubular sheath moves in a proximal direction, thereby deploying the stent to the larger diameter beginning at the distal end of the stent.