US5725549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coiled stent with locking ends
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1996-09-12
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Granted: 1998-03-10
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Expires: 2016-09-12
Abstract
Abstract An intravascular stent comprising a cylindrical body capable of expansion having end assemblies capable of locking in an expanded state. The end assemblies may have a series of tabs and apertures that interlock and rotate as the stent ends expand to an open position to support a section of vasculature or other body lumen. The stent is bio-compatible, may be bio-erodible, and capable of localized drug delivery.
Inventors
- 👤 Sharon Lam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:10
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2/92; A61F2/95; A61F2/958; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/3008; A61F2002/30108; A61F2002/30199; A61F2002/30289; A61F2002/30667; A61F2002/30677; A61F2210/00; A61F2210/0004; A61F2230/00; A61F2230/0063; A61F2230/0073; A61F2230/0076; A61F2230/0091; A61F2250/00; A61F2250/0058; A61F2250/0067; A61F2250/0096; A61F2250/0098; A61M2025/1043; A61M2025/1045
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
An intraluminal stent implantable in a body lumen, comprising: a cylindrical body formed from at least one strip disposed along a longitudinal direction, having a first end and a second end perpendicular to the longitudinal edges of said strip, further having a tab and a slot for receiving a tab located at the first end and the second end, said body and said ends further having a first reduced diameter and an adjustable second expanded diameter, wherein at least one said end of said at least one strip is radiopaque.
Claim 2
Dependent Claim
90 words
An intraluminal stent implantable in a body lumen, comprising: a cylindrical body formed from at least one strip disposed along a longitudinal direction, having a first end and a second end perpendicular to the longitudinal edges of said strip, further having a tab and a slot for receiving a tab located at the first end and the second end, said body and said ends further having a first reduced diameter and an adjustable second expanded diameter, wherein at least one said end of said at least one strip is radiopaque.
Claim 3
Dependent Claim
104 words
An intraluminal stent implantable in a body lumen, comprising a cylindrical stent body having a first reduced diameter and an adjustable, second expanded diameter; a first end and a second end on said cylindrical stent body; at least one ring capable of expanding from a first reduced diameter form to a second, expanded diameter form; attaching means for attaching said ring to one of said ends of said cylindrical stent body; whereby said ring undergoes irreversible plastic deformation when it is expanded from said first reduced diameter form to said second expanded diameter form, locking said cylindrical stent body in a second expanded diameter.
Claim 4
Dependent Claim
104 words
An intraluminal stent implantable in a body lumen, comprising a cylindrical stent body having a first reduced diameter and an adjustable, second expanded diameter; a first end and a second end on said cylindrical stent body; at least one ring capable of expanding from a first reduced diameter form to a second, expanded diameter form; attaching means for attaching said ring to one of said ends of said cylindrical stent body; whereby said ring undergoes irreversible plastic deformation when it is expanded from said first reduced diameter form to said second expanded diameter form, locking said cylindrical stent body in a second expanded diameter.
Claim 5
Dependent Claim
141 words
An intraluminal stent implantable in a body lumen, comprising: a body portion formed from a sheet, said sheet having a first longitudinal edge and a second longitudinal edge, further having a first end and a second end wherein said body portion is formed into a substantially cylindrical shape by joining said first longitudinal edge to said second longitudinal edge; a plurality of helical cuts in said sheet; a plurality of openings in said first end and said second end; means for expanding said first end and said second end from a first reduced diameter to a second expanded diameter, so that said first end and said second end are expanded from a first reduced diameter to a second expanded diameter, said first end and said second end undergoing irreversible plastic deformation and locking said stent in said second enlarged diameter form.
Claim 6
Dependent Claim
141 words
An intraluminal stent implantable in a body lumen, comprising: a body portion formed from a sheet, said sheet having a first longitudinal edge and a second longitudinal edge, further having a first end and a second end wherein said body portion is formed into a substantially cylindrical shape by joining said first longitudinal edge to said second longitudinal edge; a plurality of helical cuts in said sheet; a plurality of openings in said first end and said second end; means for expanding said first end and said second end from a first reduced diameter to a second expanded diameter, so that said first end and said second end are expanded from a first reduced diameter to a second expanded diameter, said first end and said second end undergoing irreversible plastic deformation and locking said stent in said second enlarged diameter form.
Claim 7
Dependent Claim
16 words
The intraluminal stent of claim 3, wherein said first end and said second end are radiopaque.
Claim 8
Independent Claim
113 words
A method for repairing a patient's vasculature or other body lumen having an occluded or partially occluded portion, comprising: mounting an intravascular stent body on a catheter having means for expanding and contracting said stent body, said stent body as mounted on said catheter having a first reduced diameter; advancing said catheter to position said stent body across the site of repair; expanding said stent body at said site of repair to engage said patient's vasculature; expanding a first end and a second on said stent body for locking said first end and said second end in an adjustable, second expanded diameter; and withdrawing said catheter from said vasculature or other body lumen.
Claim 9
Independent Claim
113 words
A method for repairing a patient's vasculature or other body lumen having an occluded or partially occluded portion, comprising: mounting an intravascular stent body on a catheter having means for expanding and contracting said stent body, said stent body as mounted on said catheter having a first reduced diameter; advancing said catheter to position said stent body across the site of repair; expanding said stent body at said site of repair to engage said patient's vasculature; expanding a first end and a second on said stent body for locking said first end and said second end in an adjustable, second expanded diameter; and withdrawing said catheter from said vasculature or other body lumen.
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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) | 2001-03-09 | 2001-09-08 | 2002-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-09 | 2005-09-08 | 2006-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-09 | 2009-09-08 | 2010-03-10 | $7700.00 | Window Closed / Lapsed |