Patent ID: 8579958

Claim:
A stent delivery assembly comprising: a microcatheter having a distal region, a proximal region, and a lumen that extends from the proximal region through the distal region; a delivery tube having a lumen and a distal end, the delivery tube extending within the microcatheter lumen; a stent having a first end, a second end, an intermediate region disposed between the first end and the second end, and a lumen extending from the first end to the second end, the first end being (i) disposed within the delivery tube lumen and (ii) constrained by the delivery tube from radially expanding beyond a delivery tube lumen diameter, the second end being (i) disposed outside of the delivery tube distal end and (ii) substantially radially unconstrained by the delivery tube to expand beyond the delivery tube lumen diameter; and an elongate release member having a distal portion and extending within the delivery tube lumen and the stent lumen, the distal portion being moveable between a first position, in which the distal portion and the delivery tube collectively engage the stent first end to fix the stent first end relative to the delivery tube lumen, and a second position, in which the distal portion is moved beyond the delivery tube distal end to release the stent first end.