The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2019
Filed:
Jun. 19, 2015
Lifetech Scientific (Shenzhen) Co., Ltd., Shenzhen, CN;
Yongsheng Wang, Shenzhen, CN;
Caiping Liu, Shenzhen, CN;
Deyuan Zhang, Shenzhen, CN;
Wei Guo, Shenzhen, CN;
Lifetech Scientific (Shenzhen) Co., Ltd., Shenzhen, CN;
Abstract
A bifurcated stem graft () comprises a body () and a side branch () that forms an acute angle with the body (). The side branch () comprises a covering film () and a first bare stent () only disposed on the covering film (). Part of the first bare stent () is positioned adjacent a boundary line () of the body () and the covering film () and is located in a vertex angle area () of the acute angle. Due to the fact that part of the first bare stem () is attached to the vertex angle area (), after the stem () is released, the self-expanded part of the first bare stent () enables the vertex angle area () of the side branch () to be effectively supported, the covering film is not prone to shrinkage, and a leading wire can enter easily. Meanwhile, a special bare stent attached to the vertex angle area () does not need to be additionally disposed on the first bare stent (), and thus the technology for preparing the bare stem is simplified; furthermore, the first bare stent () is only disposed on the side branch () and does not need to span the connecting part of the body () and the side branch (), and thus the waveform can be shaped easily.