Patent ID: 8696732
Filing Date: 2014-04-15
Classification: A61F

Abstract:
1. A stent delivery system comprising: an elongate shaft of a medical device, the elongate shaft extending distally from a proximal end to a distal tip portion; and a tubular stent having a proximal end, a distal end and a lumen extending therethrough along a central longitudinal axis, the tubular stent positioned on and surrounding a distal tubular portion of the elongate shaft, wherein the distal tubular portion includes the distal tip portion and a lumen extending through the distal tubular portion and the distal tip portion; wherein the distal tip portion of the medical device is deflectable from a first position to a second position, the distal tip portion of the medical device being biased toward the first position, such that when an applied force is removed from the distal tip portion, the distal tip portion automatically reverts to the first position; wherein the distal tip portion is positioned distal of the distal end of the tubular stent in the first position; wherein deflecting the distal tip portion of the medical device from the first position to the second position moves the distal tip portion toward the central longitudinal axis of the tubular stent; wherein the distal tip portion is flared radially outward toward a distal extremity of the elongate shaft in the first position such that an outer diameter of a distal portion of the distal tip portion is greater than an outer diameter of a proximal portion of the distal tip portion proximal of the distal portion of the distal tip portion in the first position; wherein the outer diameter of the distal portion of the distal tip portion and the outer diameter of the proximal portion of the distal tip portion are both greater than the diameter of the lumen of the tubular stent in the first position.