US6849086B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraluminal stent and graft
Assignee: Lifeport Sciences LLC
•
Filing: 2002-03-01
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Granted: 2005-02-01
•
Expires: 2022-03-01
Abstract
Abstract An intraluminal stent and graft includes a stent made of a continuous helix of zig-zag wire and loops which connect adjacent apices of the wire. The stent is compressible and self-expandable substantially to a pre-compressed configuration. The device also includes a graft secured to the stent and made of a suitable biocompatible material.
Inventors
- 👤 Andrew H. Cragg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/82; A61F2/86; A61F2/88; A61F2/90; A61F2/962; A61F2/966; A61L; A61L31/00; A61L31/04; A61L31/06; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2002/075; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2002/30316; A61F2002/30329; A61F2002/30462; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0025; A61F2220/0066; A61F2220/0075; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00035; A61F2310/00131; A61L2400/00; A61L2400/16
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
106 words
A stent-graft combination comprising a tubular stent having a plurality of hoops aligned adjacent one another along the axis of said tubular stent, each of said hoops comprising a plurality of elongate elements, with pairs of said elongate elements meeting one another and forming vertices axially pointing in a direction along the axis of the stent, wherein at least some of said vertices axially abut and are individually connected to oppositely pointed vertices of elongate elements of an adjacent hoop by separate connecting members which connected adjacent vertices so that they about one another, further including a tubular graft member disposed circumferentially adjacent the tubular stent.
Claim 2
Dependent Claim
106 words
A stent-graft combination comprising a tubular stent having a plurality of hoops aligned adjacent one another along the axis of said tubular stent, each of said hoops comprising a plurality of elongate elements, with pairs of said elongate elements meeting one another and forming vertices axially pointing in a direction along the axis of the stent, wherein at least some of said vertices axially abut and are individually connected to oppositely pointed vertices of elongate elements of an adjacent hoop by separate connecting members which connected adjacent vertices so that they about one another, further including a tubular graft member disposed circumferentially adjacent the tubular stent.
Claim 3
Dependent Claim
18 words
A stent-graft combination according to claim 1 , wherein said stent is comprised of a shape memory material.
Claim 4
Dependent Claim
15 words
A stent-graft combination according to claim 1 , wherein said shape memory material is nitinol.
Claim 5
Dependent Claim
17 words
A stent-graft combination according to claim 1 , wherein said stent is comprised of an elastic material.
Claim 6
Dependent Claim
15 words
A stent-graft combination according to claim 1 , wherein said elastic material is stainless steel.
Claim 7
Dependent Claim
18 words
A stent-graft combination according to claim 1 , wherein said graft covers diamond shaped openings in said stent.
Claim 8
Dependent Claim
27 words
A stent-graft combination according to claim 1 , wherein said graft covers diamond shaped openings in said stent and is attached to said stent by ligature loops.
Claim 9
Dependent Claim
21 words
A stent-graft combination according to claim 7 , wherein said ligature loops also form connections between abutting apices of said stent.
Claim 10
Dependent Claim
20 words
A stent-graft combination according to claim 1 , wherein the graft is disposed on the outer surface of the stent.
Claim 11
Dependent Claim
20 words
A stent-graft combination according to claim 1 , wherein the graft is disposed on the inner surface of the stent.
Claim 12
Dependent Claim
17 words
A stent according to claim 1 , wherein said graft member including a drug substance disposed thereon.
Claim 13
Dependent Claim
14 words
A stent according to claim 1 , wherein said graft comprises polyester or polytetrafluoroethylene.
Claim 14
Dependent Claim
137 words
A method of reinforcing a body vessel using a tubular sheath disposed between an entry location in a body and an implantation location, said method comprising the steps of: a. providing stent-graft combination as recited in claim 1 ; b. compressing the stent-graft combination into its compressed configuration; c. inserting the compressed stent-graft combination into the tubular sheath; d. delivering the compressed stent-graft combination through the tubular sheath to the implantation location; and e. withdrawing the sheath while holding the stent at the implantation location within the vessel and expanding the stent-graft combination within the implantation location as the sheath is withdrawn by permitting the self-expandable stent-graft combination, as the constraint of the sheath is removed, to return to said expanded configuration; whereby the stent-graft combination is securely disposed in the implanted state against said body vessel.
Claim 15
Dependent Claim
21 words
A method according to claim 13 , wherein the stent of said stent-graft combination is comprised of a shape memory material.
Claim 16
Dependent Claim
14 words
A method according to claim 14 , wherein said shape memory material is nitinol.
Claim 17
Dependent Claim
20 words
A method according to claim 13 , wherein the stent of said stent-graft combination is comprised of an elastic material.
Claim 18
Dependent Claim
14 words
A method according to claim 16 , wherein said elastic material is stainless steel.
Claim 19
Dependent Claim
23 words
A method according to claim 15 , wherein step b is performed at a reduced temperature such that the nitinol is not elastic.
Claim 20
Dependent Claim
105 words
Method of implanting a prosthesis at an implementation site in a body lumen comprising providing a stent graft combination as recited in claim 1 , said stent-graft combination having first and second configurations the diameter of said stent or prosthesis in said first configuration being smaller than in said second configuration, said method comprising introducing said stent or prosthesis, while in its first configuration into a body lumen in communication with said implantation site but remote therefrom, transporting said stent-graft combination to said implantation site and causing or permitting said stent-graft combination to assume its second configuration, whereby it is retained at said implantation site.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-02-01 | 2008-08-02 | 2009-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-02-01 | 2012-08-02 | 2013-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-02-01 | 2016-08-02 | 2017-02-01 | $7700.00 | Window Closed / Lapsed |