Patent ID: 9532803
Date: 2017-01-03
CPC Classifications: A61B,A61F,A61M

Claim:
1. A device comprising: a longitudinal axis; a first end portion having a terminal first end diameter between 4 mm and 10 mm, the first end portion having a first length along the longitudinal axis, the first end portion being self-expanding; a second end portion having a second end diameter between 2 mm and 8 mm and smaller than the terminal first end diameter, the second end portion being substantially cylindrical, the second end portion having a second length along the longitudinal axis, the second end portion being self-expanding; an intermediate portion between the first end portion and the second end portion, the intermediate portion tapering between the first end portion and the second end portion, the intermediate portion having a third length along the longitudinal axis, the intermediate portion being deformably expandable, the first end portion being frustoconical, the first end portion tapering between the terminal first end diameter and the intermediate portion; and a graft material coupled to at least the intermediate portion, the device configured to provide fluid flow between a first passage in which the first end portion is anchored and a second passage in which the second end portion is anchored.