Patent ID: 7942917
Filing Date: 2011-05-17
Classification: A61F

Abstract:
1. A stent system comprising: an actuation shaft having an elongated tubular body defining a lumen; a stent releasably attached to the actuation shaft and formed from a resilient tube having a fluid passageway in fluid communication with the actuation shaft lumen, the stent having a helical expanded configuration where the resilient tube forms consecutive loops which have a blood flow lumen therethrough and a linear delivery configuration where the loops of the resilient tube are substantially straightened, wherein the stent is transformable from the delivery configuration to the helical expanded configuration through introduction of a deployment fluid into the fluid passageway of the resilient tube via the actuation shaft lumen; a guidewire with an elongated body having a reduced diameter distal portion; and a ring attached to a distal end of the stent, wherein the ring is slidable over the guidewire distal portion to abut a step in the guidewire.