Microport Endovascular (shanghai) Co., Ltd.

Shanghai Microport Endovascular Medtech (group) Co., Ltd.

Shanghai Vasolutions Medtech Co., Ltd.

Shanghai Intervascular Medtech Co., Ltd.

Zhenyu Yuan

Qing Zhu

Qiyi Luo

Zhonghua Li

Yanbin Gao

Dingguo Huang

Liwen Wang

Chunlin Tu

Dadong Peng

Xiaojuan Deng

Zhenghua Miao

Mengqin Liu

Zhikai Xing

Shun Xia

Qingru Ji

A branched stent graft, a convey system comprising thereof and manufacturing method thereof, the branched stent graft includes a main body () and a side branch (), at least a portion of a lowermost stent section of the side branch () closest to the main body () is not stitched to the cover of the side branch from a lower end to an upper end, the at least a portion of the lowermost stent section is located on a side of the side branch corresponding to a folding direction of the side branch. After deployed, the branched stent graft has an effective supporting force at the base portion of the side branch. In addition, during the deployment of the stent, the side branch can expand to a maximal extent even when the positioning is slightly inaccurate. Further, vascular stenosis or occlusion will not be caused even when subsequent endothelialization occurs.

Branched stent graft, delivery system comprising same and method of fabricating same

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

Branched stent graft

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Shanghai, China

Zhenyu Yuan