Axially Compressible Bare Stent with Overlapping Wires for Aortic Treatment
Summary
USPTO granted Patent US12599492B2 to Shanghai Flowdynamics Medical Technology Co., Ltd. for an axially compressible bare stent used in aortic aneurysm and dissection treatment. The stent is formed by interleaving two wires of different diameters (20-150 μm and 150-600 μm) to achieve at least 30% metal coverage with strong radial support. Inventors are Jian Ding and Chenying Fan. The patent includes 16 claims.
What changed
USPTO issued Patent US12599492B2 granting exclusive rights to Shanghai Flowdynamics Medical Technology Co., Ltd. for an axially compressible bare stent design. The patent covers a stent formed by interleaving at least two wires of different diameters (20-150 μm and 150-600 μm), providing at least 30% metal coverage and strong radial support for aortic applications.
Medical device manufacturers developing bare stents for aortic aneurysm or dissection treatment should review this patent to assess potential infringement risks. Competitors in the vascular device space may need to design around these claims or seek licensing arrangements. The 16 allowed claims establish broad protection for the dual-wire interleaving design and axial compressibility feature in bare stent applications.
What to do next
- Monitor patent portfolio for infringement by competing bare stent manufacturers
- Review patent claims for potential licensing opportunities
Archived snapshot
Apr 14, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Axially compressible bare stent
Grant US12599492B2 Kind: B2 Apr 14, 2026
Assignee
SHANGHAI FLOWDYNAMICS MEDICAL TECHNOLOGY CO., LTD.
Inventors
Jian Ding, Chenying Fan
Abstract
An axially compressible bare stent for an aorta, formed by interleaving at least two wires having different diameters, i.e., a first wire and a second wire, in an overlapping manner. In a natural release state, the bare stent has a metal coverage of at least 30%. The first wire has a diameter of 20-150 μm, and the second wire has a diameter of 150-600 μm. During the use in the treatment of aortic aneurysms and/or aortic dissection lesions, low liquid permeability and a strong radial support force are provided at a desired location in an aorta by means of the axial compressibility of the bare stent.
CPC Classifications
A61F 2/04 A61F 2/82 A61F 2/86 A61F 2/88 A61F 2/885 A61F 2/90 A61F 2/07 A61F 2250/0039 A61F 2002/823 A61B 17/12113
Filing Date
2020-11-06
Application No.
18003357
Claims
16
Named provisions
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