EP0506918B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Self-expanding endovascular stent
Assignee: Individual
•
Filing: 1991-10-17
•
Granted: 1996-01-03
•
Expires: 2011-10-17
Abstract
Abstract An object of this invention is to provide a radially expandable stent (1) that holds a passageway enlarged by placing the stent (1) into a lumen. The stent (1) comprises a cylindrical frame formed by a plurality of unit structures (11, 12,... 16,...); said unit structures (11, 12,... 16,...) formed into a closed zig-zag configuration including an endless series of straight sections (111) and joined by bends (112), and arranged face to face into a shape of multistage; connecting members (31, 33, 35, 37...), which connect said unit structures (11, 12,... 16,...); and a mesh (91), which is wrapped around an outside of said frame.
Inventors
- 👤 Ho Young Song
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:00
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2230/0063; A61F2230/0073; A61F2230/0078
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
91 words
A stent comprising: a cylindrical frame 10 formed by a plurality of unit structures 11, 12, 13, 14, 15, 16; each of said unit structures 11, 12, 13, 14, 15, 16 being formed into a closed zig-zag configuration including an endless series of straight sections 111, joined by bends 112, and adjacent one another along the axis of the stent; connecting members 31, 33, 35, 37, which connects said unit structures 11, 12, 13, 14, 15, 16; and a mesh 91, which is wrapped around the outside of said frame 10.
Claim 2
Dependent Claim
26 words
A stent as claimed in claim in 1 wherein anti-migration members 41, 43 with barbs are installed in a central area 100 of said frame 10.
Claim 3
Dependent Claim
26 words
A stent as claimed in claims 1 and 2 wherein said frame 10, connecting members 31, 33, 35, 37, and anti-migration members 41, 43 are gilt.
Claim 4
Dependent Claim
18 words
A stent as claimed in claims 1 and 2, wherein said mesh 91 is coated with silicon rubber.
Claim 5
Dependent Claim
107 words
A stent comprising: a cylindrical frame 20 formed by a plurality of unit structures 21, 22, 23, 24; each of said unit structures 21, 22, 23, 24 being formed into a closed zig-zag configuration including an endless series of straight sections 211, joined by bends 212, and adjacent one another along the axis of the stent; connecting members, which connect said unit 22, 23, 24; anti-migration members 42 and 44, which have the same structure as said unit structure, and placed in the ends of the upper and lower portions of said frame; and a mesh 91 which is wrapped around the outside of said frame 20.
Claim 6
Dependent Claim
39 words
A stent as claimed in claim in 5, wherein said anti-migration members 42 and 44 have larger diameters than the diameter of said frame 20, and are connected to said frame 20 by the second connecting members 32, 34.
Claim 7
Dependent Claim
25 words
A stent as claimed in claim 6, wherein the second connecting members 32, 34 consist of vertical parts 321, 341 and expansile parts 322, 342.
Claim 8
Dependent Claim
30 words
A stent as claimed in claims 5, 6 and 7, wherein the mesh is wrapped whole around the outside of said frame 20 and the anti-migration members 42 and 44.
Claim 9
Dependent Claim
20 words
A stent as claimed in claims 5 and 6, wherein said frame 20 and anti-migration members 42, 44 are gilt.
Claim 10
Dependent Claim
23 words
A stent as claimed in claims 5 and 6, wherein said mesh is coated with silicon rubber or urethane resin or the like.
References Cited (Backward Citations)
No citation records indexed.
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