STENT DELIVERY SYSTEM HAVING STENT SECUREMENT APPARATUS

摘要

A system/assembly for delivery and deployment of an inflation expandable stent within a vessel, comprising a catheter having proximal and distal ends; a stent, inflation expandable from a delivery diameter to a deployment diameter, such that the delivery diameter is reduced from the deployment diameter for conforming the stent to the catheter, such that the stent, in its delivery diameter, is coaxially mounted on the catheter near the catheter distal end; an expandable inflation means coaxially mounted on the catheter axially within the stent, for expansion of the stent from the delivery diameter to the deployment diameter upon application of fluid deployment pressure to the inflation means; and a securement component coaxially mounted on the catheter, axially within the expandable inflation means, the securement component designed and adapted to provide a securement pressure to the stent in the delivery diameter to maintain the stent in position on the catheter during delivery to the deployment site.

主权项

1. A medical device, comprising:
an elongate shaft including a first tubular member and a second tubular member; a balloon coupled to the shaft; a first member coupled to the first tubular member and positioned within the balloon, the first member including a distal stop with a tapered distal portion; a second member coupled to the first tubular member and positioned within the balloon, the second member having a distal end disposed proximal of a proximal end of the distal stop; and a medical implant coupled to the shaft and positioned adjacent to the balloon.