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:
Dec. 17, 2024
Filed:
Dec. 01, 2020
Shenzhen Lifetech Endovascular Medical Co., Ltd., Shenzhen, CN;
LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD., Shenzhen, CN;
Abstract
The present invention belongs to the field of medical devices, and specifically relates to a stent-graft. The stent-graft has a proximal greater curvature side and a proximal lesser curvature side. The stent-graft includes a stent body, an inner cover membrane disposed on the inner side of the stent body, and an outer cover membrane disposed on the outer side of the stent body. The stent body includes a plurality of wave rings axially arranged at intervals. Alternatively arranged crests and troughs are formed on the wave rings. The outer cover membrane is provided with a first opening, and the first opening exposes at least one trough located at or nearer to the proximal greater curvature side. According to the stent-graft of the embodiments of the present invention, the exposed trough can easily hang on a vessel wall, and thereby achieving the function of preventing the stent-graft from shifting. The crests and troughs located at the proximal lesser curvature side of the stent-graft remain covered by the outer cover membrane. Therefore, the stack state of the cover membrane and the wave ring in a stent lumen is in the blood flow direction, thereby reducing the risk of thrombosis.