BRAIDED STENT WITH EXPANSION RING AND METHOD OF DELIVERY

摘要

A self-expanding braided stent includes at least a distal radial expansion ring added to a distal end of the stent body to increase a radial expansion force of the self-expanding braided stent in deployment of the stent, and to facilitate advancement of the stent through a delivery sheath by a core advancement wire. A proximal radial expansion ring is optionally added to a proximal end of the stent body to allow the stent to be recaptured following partial deployment by retraction of the core advancement wire, prior to full deployment of a proximal portion of the stent body.

主权项

1. A braided stent, comprising:
a tubular braided stent body having a proximal end, a distal end, and an inner lumen, said tubular braided stent body being formed from a plurality of elongate members; and at least one expansion ring disposed within and fixedly connected to at least one of said proximal end and said distal end of said tubular braided stent body, said at least one expansion ring having a first end, a second end, and an inner lumen, said at least one expansion ring having a compressed configuration having a first diameter and an expanded configuration having a second diameter larger than said first diameter.