EP0732088A2
Expired / Lapsed
EP
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Expandable stent forming projecting barbs and method for deploying
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1996-03-14
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Granted: —
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Expires: 2016-03-14
Abstract
Abstract An intraluminal stent for implanting in a body lumen in which a plurality of connecting members are deformed radially outwardly to form projecting barbs for attaching the stent to a body lumen. The stent has a first, unexpanded low profile diameter for intraluminal delivery, and a second, larger expanded diameter for implanting in a body lumen in which projecting barbs are formed and which penetrate the body lumen to assist in attaching the stent to the walls of the body lumen.
Inventors
- 👤 Geoffrey A. Orth
- 👤 Scott C. Anderson
- 👤 Peter S. Brown
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 09:06
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/958; A61F2002/075; A61F2002/825; A61F2002/828; A61F2/848; A61F2002/8483; A61F2002/9155; A61F2002/91558; A61F2002/91566; A61F2002/91575; A61F2002/91591; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/0058; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2250/00; A61F2250/0014; A61F2250/0036; A61F2250/0058; A61F2250/0071
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
93 words
An expandable intraluminal stent (10) for implanting in a body lumen, comprising: a first stent section (11) having at least one cylindrical element (13) facing a first direction; a second stent section (12) having at least one cylindrical element (13) facing a second direction opposite to said first direction; a plurality of connecting members (20) connecting said first section to said second section; and a weakened portion (21) in at least some of said connecting members, said connecting members being deformable at said weakened portion to provide a plurality of projecting barbs (22).
Claim 2
Dependent Claim
21 words
The intravascular stent of claim 1, wherein said weakened portion (21) includes at least one notch in said connecting members (20).
Claim 3
Dependent Claim
37 words
The intravascular stent of claim 1, wherein said connecting members (20) have a bevelled- edge member (25) attached to a portion thereof, said bevelled-edge member penetrating the body lumen when said connecting members (20) are deformed outwardly.
Claim 4
Dependent Claim
23 words
The intravascular stent of claim 1, wherein the overall length of said stent in its unexpanded and expanded configurations is substantially the same.
Claim 5
Dependent Claim
102 words
An intraluminal stent (10) for implanting in a body lumen, comprising: a first stent section (11) and a second stent section 12) each having at least one expandable cylindrical element (13) which are interconnected so as to be aligned on a common longitudinal axis; a plurality of connecting members (20) connecting said first stent section to said second stent section; and a notch (21) in at least some of said connecting members (20) providing a weakened area so that said connecting members having a notch can be deformed outwardly to form a plurality of projecting barbs (22) for penetrating the body lumen.
Claim 6
Dependent Claim
35 words
The intravascular stent of claim 1 or clam 5, wherein said stent has a smooth outer surface having no projections or rough edges and a first, unexpanded diameter providing a low profile for intraluminal delivery.
Claim 7
Dependent Claim
39 words
The intravascular stent of claim 1 or claim 5, wherein said stent has a second, expanded diameter so that said outer surface of said stent contacts the body lumen and said plurality of projecting barbs contact the body lumen.
Claim 8
Dependent Claim
17 words
The intravascular stent of claim 7, wherein said plurality of projecting barbs (22) penetrate the body lumen.
Claim 9
Dependent Claim
18 words
The intravascular stent claim 1 or claim 5, wherein said stent is attached to a tubular graft (35).
Claim 10
Dependent Claim
20 words
The intravascular stent of claim 1 or claim 5, wherein said stent is formed from a single piece of tubing.
Claim 11
Dependent Claim
20 words
The intravascular stent of claim 1 or claim 5, wherein said stent is formed from a flat sheet of material.
Claim 12
Dependent Claim
52 words
The intravascular stent of claim 11, wherein said flat sheet of material has a first longitudinal edge and a second longitudinal edge, and said stent is rolled into a cylindrical configuration from said flat sheet of material so that said first longitudinal edge abuts said second longitudinal edge and is attached thereto.
Claim 13
Dependent Claim
30 words
The intravascular stent of claim 5, wherein said first stent section and said second stent section are expanded from within causing said connecting members having a notch to deform outwardly.
Claim 14
Dependent Claim
34 words
The intravascular stent of claim 5, wherein said first stent section is twisted relative to said second stent section in order to deform said connecting members having a notch thereby forming said projecting barbs.
Claim 15
Dependent Claim
36 words
The intravascular stent of claim 5, wherein said first stent section and said second stent section are forced toward each other thereby deforming radially outwardly said connecting members having a notch and forming said projecting barbs.
Claim 16
Dependent Claim
19 words
The intravascular stent of claim 5, wherein at least some of said connecting members have a plurality of notches.
Claim 17
Dependent Claim
35 words
The intravascular stent of claim 5, wherein said connecting members having a notch have a bevelled-edge member (25) attached to a portion thereof, said bevelled-edge member penetrating the body lumen when the stent is expanded.
Claim 18
Independent Claim
212 words
A method for implanting an intraluminal stent (10) in a body lumen where said stent has a plurality of cylindrical elements (13) which are expandable in a radial direction and which are interconnected so as to be aligned on a common longitudinal axis, and said stent having a plurality of connecting members (20) for interconnecting said cylindrical elements, where at least some of said connecting members have a notch so that as said cylindrical elements (13) are radially expanded said connecting members (20) having a notch buckle outwardly to form a plurality of projecting barbs (22), the method comprising: providing a delivery catheter (50) having an expansion member (40) at its distal end; mounting said intraluminal stent on said expansion member of said catheter; delivering said stent on said expansion member of said catheter percutaneously through the patient's vasculature to a specific location; expanding said expansion member and thereby expanding said stent outwardly into contact with the body lumen; forming a plurality of projecting barbs (22) by deforming the connecting members (20) having a notch (21) so that they buckle outwardly, said projecting barbs penetrating the body lumen; and contracting said expansion member and withdrawing said catheter and said expansion member from the patient leaving said stent implanted in the body lumen.
Claim 19
Dependent Claim
41 words
The method of implanting an intraluminal stent of claim 18, wherein said stent is attached to a tubular graft (35) prior to said mounting step so that said stent and tube graft combination can be used for repairing an aortic aneurysm.
Claim 20
Dependent Claim
50 words
The method of implanting an intraluminal stent of claim 19, wherein said connecting members having a notch (21) also have a bevelled-edge member (25) attached to a portion thereof, the method further comprising penetrating the body lumen by said bevelled-edge member when the connecting members having a notch buckle outwardly.
References Cited (Backward Citations)
No citation records indexed.
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