SIDE BRANCHED STENT GRAFT

摘要

A side branched stent graft comprises a main body portion and a side branch portion. Each of the main body portion and the side branch portion includes a stent and a tubular graft. The stent of the main body portion includes a plurality of stent segments, wherein at least one of the stent segments is an uprising stent segment (102). The stent of the side branch portion includes one or more stent segments, wherein at least one of the stent segments is an uprising stent segment (103). The distance between the proximal-most stent segment of the side branch portion and the main body portion is in the range of 2-8 mm. A positioning ring (105) may be used at the side opening which connects the side branch portion and the main body portion, and the positioning ring (105) can be sutured in the graft of the main body, between the graft of the main body and the graft of the side branch, or outside of the graft of the side branch.