Patent GB1482857A successfully refreshed from Google Patents.
US20050107865A1
Expired / Lapsed
US
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Endoprosthesis having foot extensions
Assignee: Abbott Laboratories
•
Filing: 2004-11-19
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Granted: —
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Expires: 2024-11-19
Abstract
Abstract Endoprosthesis, such as a stent, includes at least one annular element defined by a first set of strut members interconnected to define apices proximate opposite sides of the annular element. The annular element further includes a foot extension extending between at least one pair of circumferentially-adjacent strut members. The foot extension has first and second foot portions extending circumferentially from corresponding ends of the circumferentially-adjacent strut members, and are contoured to provide at least two areas of flexure. The first and second foot portions are joined at a toe portion of the foot extension, and define a circumferentially-directed apex between the pair of circumferentially-adjacent strut members. Preferably, at least one or more additional annular elements, each defined by interconnected strut members, are provided. The annular elements are generally expandable between a delivery configuration and a deployed configuration. The annular elements are longitudinally aligned and connected at connection locations. Preferably, each connection location includes a foot extension, such as by an overlapping pattern between the longitudinally-adjacent annular elements or by a connector extending therebetween.
Inventors
- 👤 Anton Clifford
- 👤 Kevin Kang
- 👤 David Lowe
- 👤 Jeff Pappas
- 👤 Erik Eli
- 👤 Howard Huang
- 👤 Lisa Weldon
- 👤 Ketan Muni
- 👤 Eugene Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:30
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91508; A61F2002/91516; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2220/00; A61F2220/0008; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
223 words
1 . An endoprosthesis for delivery in a body lumen comprising: a first set of interconnected strut members defining a first annular element, each strut member of the first annular element including a first end and a second end; a second set of interconnected strut members defining a second annular element, each strut member of the second annular element including a first end and a second end; the first annular element and the second annular element aligned longitudinally adjacent to each other along a longitudinal axis and connected to each other at at least one connection location, the first and second annular elements being expandable between a delivery configuration and a deployed configuration; at least one of the first and second annular elements including a foot extension extending between at least one pair of circumferentially-adjacent strut members, the foot extension including a first foot portion extending circumferentially from the first end of one of the circumferentially-adjacent strut members of the pair and a second foot portion extending circumferentially from the first end of the other of the circumferentially-adjacent strut members, the first and second foot portions joined at a toe portion of the foot extension, the first and second annular elements forming a generally tubular member having open ends; and a marker associated with one of open ends of the generally tubular member.
Claim 2
Dependent Claim
223 words
1 . An endoprosthesis for delivery in a body lumen comprising: a first set of interconnected strut members defining a first annular element, each strut member of the first annular element including a first end and a second end; a second set of interconnected strut members defining a second annular element, each strut member of the second annular element including a first end and a second end; the first annular element and the second annular element aligned longitudinally adjacent to each other along a longitudinal axis and connected to each other at at least one connection location, the first and second annular elements being expandable between a delivery configuration and a deployed configuration; at least one of the first and second annular elements including a foot extension extending between at least one pair of circumferentially-adjacent strut members, the foot extension including a first foot portion extending circumferentially from the first end of one of the circumferentially-adjacent strut members of the pair and a second foot portion extending circumferentially from the first end of the other of the circumferentially-adjacent strut members, the first and second foot portions joined at a toe portion of the foot extension, the first and second annular elements forming a generally tubular member having open ends; and a marker associated with one of open ends of the generally tubular member.
Claim 3
Dependent Claim
27 words
2 . The endoprosthesis of claim 1 , further including a marker housing associated with one of the annular elements and extending from one of the ends.
Claim 4
Dependent Claim
27 words
3 . The endoprosthesis of claim 2 , wherein a portion of the marker extends beyond an outer and an inner surface of the generally tubular member.
Claim 5
Dependent Claim
14 words
4 . The endoprosthesis of claim 3 , wherein the marker comprises a rivet.
Claim 6
Dependent Claim
24 words
5 . The endoprosthesis of claim 4 , wherein the marker has a higher radiopacity than that of the material of the annular elements.
Claim 7
Dependent Claim
15 words
6 . The endoprosthesis of claim 5 , wherein the marker is made of Tantalum.
Claim 8
Dependent Claim
21 words
7 . The endoprosthesis of claim 4 , wherein the rivet is deformed axially after being disposed within the marker housing.
Claim 9
Dependent Claim
21 words
8 . The endoprosthesis of claim 7 , wherein the rivet is deformed radially after being disposed within the marker housing.
Claim 10
Dependent Claim
17 words
9 . The endoprosthesis of claim 8 , wherein the marker housing includes an aperture formed therein.
Claim 11
Dependent Claim
35 words
10 . The endoprosthesis of claim 8 , wherein the rivet has a first and second diameter, wherein the second diameter of the marker is greater than that of the aperture of the marker housing.
Claim 12
Dependent Claim
75 words
11 . An endoprosthesis device for delivery in a body lumen, comprising: a thin-walled, generally tubular member having open ends with a first diameter and a second diameter; and at least one marker element connected to at least one end of the thin-walled generally tubular member, the marker comprising a marker housing and a rivet, a portion of the rivet extending generally beyond an outer surface and an inner surface of the substantially tubular member.
Claim 13
Dependent Claim
75 words
11 . An endoprosthesis device for delivery in a body lumen, comprising: a thin-walled, generally tubular member having open ends with a first diameter and a second diameter; and at least one marker element connected to at least one end of the thin-walled generally tubular member, the marker comprising a marker housing and a rivet, a portion of the rivet extending generally beyond an outer surface and an inner surface of the substantially tubular member.
Claim 14
Dependent Claim
15 words
12 . The endoprosthesis of claim 11 , wherein the rivet is constructed of Tantalum.
Claim 15
Dependent Claim
28 words
13 . The endoprosthesis of claim 11 , wherein the marker housing includes an aperture formed therein, wherein the rivet is disposed within and extends from said aperture.
Claim 16
Dependent Claim
24 words
14 . The endoprosthesis of claim 13 , wherein said rivet is physically deformed after being disposed within the aperture of the marker housing.
Claim 17
Dependent Claim
21 words
15 . The endoprosthesis of claim 14 , wherein the rivet is deformed along an axis generally perpendicular to the rivet.
Claim 18
Dependent Claim
22 words
16 . The endoprosthesis of claim 11 , wherein the thin-walled generally tubular member is media blasted before insertion of the rivet.
Claim 19
Dependent Claim
21 words
17 . The endoprosthesis of claim 16 , wherein the thin-walled generally tubular member is electropolished before insertion of the rivet.
Claim 20
Dependent Claim
26 words
18 . The endoprosthesis of claim 11 , wherein the thin-walled generally tubular member includes at least one rivet disposed on each of the open ends.
Claim 21
Dependent Claim
18 words
19 . The endoprosthesis of claim 11 , wherein the rivet is frictionally retained within the marker housing.
Claim 22
Dependent Claim
82 words
20 . A method of manufacturing an endoprosthesis device, comprising: forming an endoprosthesis for delivery in a body lumen; smoothing surfaces of the endoprosthesis by media blasting; polishing the surfaces of the endoprosthesis with an electropolishing process; disposing a radiopaque marker within an opening formed within a structure of an endoprosthesis device; applying a force to said marker, thereby forming two heads on the marker, wherein each of the heads extends beyond and inner and an outer surface of the endoprosthesis device.
Claim 23
Dependent Claim
82 words
20 . A method of manufacturing an endoprosthesis device, comprising: forming an endoprosthesis for delivery in a body lumen; smoothing surfaces of the endoprosthesis by media blasting; polishing the surfaces of the endoprosthesis with an electropolishing process; disposing a radiopaque marker within an opening formed within a structure of an endoprosthesis device; applying a force to said marker, thereby forming two heads on the marker, wherein each of the heads extends beyond and inner and an outer surface of the endoprosthesis device.
Claim 24
Dependent Claim
53 words
21 . The method of claim 20 , wherein the step of forming an endoprosthesis comprises forming a plurality of strut members defining at least one annular member, wherein the strut members have first and second ends and a pair of strut members are interconnected at a first end with a foot extension.
Claim 25
Dependent Claim
21 words
22 . The method of claim 21 , wherein the step of forming a plurality of strut members comprises laser cutting.
Claim 26
Dependent Claim
23 words
23 . The method of claim 22 , further comprising the step of honing an inner surface of the endoprosthesis before media blasting.
Claim 27
Dependent Claim
23 words
24 . The method of claim 23 , further comprising the step of heat treating the endoprosthesis before smoothing surfaces by media blasting.
Claim 28
Dependent Claim
24 words
25 . The method of claim 24 , further comprising the step of descaling the endoprosthesis before disposing the radiopaque marker in the opening.
Claim 29
Dependent Claim
16 words
26 . The method of claim 25 , wherein the descaling process comprises an acid soak.
Claim 30
Dependent Claim
16 words
28 . The method of claim 20 , wherein the marker comprises a generally cylindrical member.
Claim 31
Dependent Claim
26 words
29 . The method of claim 28 , wherein the cylindrical member includes a first and second end, the first end including an increased diameter portion.
Claim 32
Dependent Claim
30 words
30 . The method of claim 29 , wherein said endoprosthesis is formed from a unitary generally tubular member having an inner and an outer surface defining a wall thickness.
Claim 33
Dependent Claim
16 words
31 . The method of claim 20 , further comprising a first passivation processing after polishing.
Claim 34
Dependent Claim
22 words
32 . The method of claim 20 , further comprising a second passivation processing step after forming two heads on the marker.
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