LOADING AND DELIVERY OF SELF-EXPANDING STENTS

摘要

A method of deploying a stent includes providing a delivery system with the stent loaded in a reduced diameter configuration between an inner catheter and an outer sheath, the stent including a covering positioned on a luminal wall surface thereof, the inner catheter including a radially outwardly extending protrusion that extends into the covering but does not intersect a plane along the stent luminal wall surface, advancing the delivery system to a stenting site, and withdrawing the outer sheath to deploy the stent at the stenting site.

主权项

1. A method:
providing a covered stent comprising:
a stent having a lumen and a plurality of struts with apertures between the struts;luminal and abluminal covers comprising a material wherein the covers are spaced apart by the stent,wherein the abluminal and luminal covers connect to each other through the apertures; providing a stent pusher in the lumen having protrusions along the length of the lumen; compressing the stent inwardly until the protrusions deform the material; inserting the pusher and the compressed stent into a delivery sheath; and withdrawing the pusher from the lumen inside the delivery sheath by unscrewing the stent pusher.