US6652579B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiopaque stent
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 2000-06-22
•
Granted: 2003-11-25
•
Expires: 2020-06-22
Abstract
Abstract A tubular stent formed from a plurality of cylindrical rings and connecting links where selected connecting links are of comparatively high mass in relation to the other links. The high-mass links have sufficient mass to be visible during a fluoroscopy procedure when formed from a moderately radiopaque material such as stainless steel. The high-mass links being arranged in a spiral pattern along the length of the stent to ensure that the stent is fluoroscopically visible regardless of the stents orientation during the implantation procedure.
Inventors
- 👤 Daniel L. Cox
- 👤 Timothy A. Limon
- 👤 Wouter E. Roorda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
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; A61F2002/91575; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
107 words
A radiopaque intravascular stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter; each cylindrical ring having a proximal end and a distal end and a cylindrical wall extending circumferentially between the proximal end and the distal end of the cylindrical ring; and at least one connecting link attaching each cylindrical ring to an adjacent cylindrical ring, wherein at least one of the connecting links is a high-mass connecting link having a non-linear shape; wherein the stent is a unitary structure formed from a single material.
Claim 2
Dependent Claim
107 words
A radiopaque intravascular stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter; each cylindrical ring having a proximal end and a distal end and a cylindrical wall extending circumferentially between the proximal end and the distal end of the cylindrical ring; and at least one connecting link attaching each cylindrical ring to an adjacent cylindrical ring, wherein at least one of the connecting links is a high-mass connecting link having a non-linear shape; wherein the stent is a unitary structure formed from a single material.
Claim 3
Dependent Claim
26 words
The stent of claim 1 , wherein the high-mass connecting links have a configuration selected from the group consisting of circles, squares, rectangles, trapezoids, or triangles.
Claim 4
Dependent Claim
23 words
The stent of claim 1 , wherein at least one high-mass connecting link attaches every other cylindrical ring to an adjacent cylindrical ring.
Claim 5
Dependent Claim
20 words
The stent of claim 3 , wherein each high-mass connecting link is circumferentially offset from the preceding high-mass connecting link.
Claim 6
Dependent Claim
22 words
The stent of claim 4 , wherein the circumferentially offset connecting links form a spiral pattern along the length of the stent.
Claim 7
Dependent Claim
17 words
The stent of claim 1 , wherein each cylindrical ring comprises a plurality of peaks and valleys.
Claim 8
Dependent Claim
24 words
The stent of claim 6 , wherein the peaks of each cylindrical ring are axially aligned with the valleys of each adjacent cylindrical ring.
Claim 9
Dependent Claim
14 words
The stent of claim 1 , wherein the stent is formed from a tube.
Claim 10
Dependent Claim
15 words
The stent of claim 1 , wherein the stent is formed from a metal alloy.
Claim 11
Dependent Claim
14 words
The stent of claim 1 , wherein the stent is formed from stainless steel.
Claim 12
Dependent Claim
16 words
The stent of claim 1 , wherein the stent is formed from a shape memory alloy.
Claim 13
Dependent Claim
123 words
A radiopaque stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter; each cylindrical ring having a plurality of peaks and valleys, the valleys of one cylindrical ring being circumferentially offset from the valleys of an adjacent cylindrical ring; and at least one connecting link attaching each cylindrical ring to an adjacent cylindrical ring, the connecting link being positioned substantially within one of the valleys and attaching the valley to an adjacent peak, wherein at least one of the connecting links is a high-mass connecting link having a non-linear shape; wherein the stent is a unitary structure formed from a single material.
Claim 14
Dependent Claim
123 words
A radiopaque stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter; each cylindrical ring having a plurality of peaks and valleys, the valleys of one cylindrical ring being circumferentially offset from the valleys of an adjacent cylindrical ring; and at least one connecting link attaching each cylindrical ring to an adjacent cylindrical ring, the connecting link being positioned substantially within one of the valleys and attaching the valley to an adjacent peak, wherein at least one of the connecting links is a high-mass connecting link having a non-linear shape; wherein the stent is a unitary structure formed from a single material.
Claim 15
Dependent Claim
26 words
The stent of claim 12 , wherein the high-mass connecting links have a configuration selected from the group consisting of circles, squares, rectangles, trapezoids, or triangles.
Claim 16
Dependent Claim
23 words
The stent of claim 12 , wherein at least one high-mass connecting link attaches every other cylindrical ring to an adjacent cylindrical ring.
Claim 17
Dependent Claim
20 words
The stent of claim 14 , wherein each high-mass connecting link is circumferentially offset from the preceding high-mass connecting link.
Claim 18
Dependent Claim
22 words
The stent of claim 15 , wherein the circumferentially offset connecting links form a spiral pattern along the length of the stent.
Claim 19
Dependent Claim
14 words
The stent of claim 12 , wherein the stent is formed from a tube.
Claim 20
Dependent Claim
15 words
The stent of claim 12 , wherein the stent is formed from a metal alloy.
Claim 21
Dependent Claim
14 words
The stent of claim 12 , wherein the stent is formed from stainless steel.
Claim 22
Dependent Claim
16 words
The stent of claim 12 , wherein the stent is formed from a shape memory alloy.
Claim 23
Dependent Claim
136 words
A radiopaque stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter, wherein each cylindrical ring has a proximal end and a distal end and a cylindrical wall extending circumferentially between the proximal end and the distal end, and further wherein the cylindrical rings are formed of a plurality of U-shaped portions, Y-shaped portions, and W-shaped portions; and at least one connecting link attaches each cylindrical ring to an adjacent cylindrical ring, the connecting links being positioned substantially within the cylindricial walls of the cylindrical rings and, wherein at least one of the connecting links is a high-mass link having a non-linear shape; wherein the stent is a unitary structure formed from a single material.
Claim 24
Dependent Claim
136 words
A radiopaque stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter, wherein each cylindrical ring has a proximal end and a distal end and a cylindrical wall extending circumferentially between the proximal end and the distal end, and further wherein the cylindrical rings are formed of a plurality of U-shaped portions, Y-shaped portions, and W-shaped portions; and at least one connecting link attaches each cylindrical ring to an adjacent cylindrical ring, the connecting links being positioned substantially within the cylindricial walls of the cylindrical rings and, wherein at least one of the connecting links is a high-mass link having a non-linear shape; wherein the stent is a unitary structure formed from a single material.
Claim 25
Dependent Claim
23 words
The sent of claim 21 , wherein the Y-shaped portions are formed from the combination of the U-shaped portions with the connecting links.
Claim 26
Dependent Claim
18 words
The stent of claim 21 , wherein the W-shaped portions incorporate at least a portion of connecting links.
Claim 27
Dependent Claim
26 words
The stent of claim 21 , wherein the high-mass connecting links have a configuration selected from the group consisting of circles, squares; rectangles, trapezoids, or triangles.
Claim 28
Dependent Claim
23 words
The stent of claim 21 , wherein at least one high-mass connecting link attaches every other cylindrical ring to an adjacent cylindrical ring.
Claim 29
Dependent Claim
20 words
The stent of claim 25 , wherein each high-mass connecting link is circumferentially offset from the preceding high-mass connecting link.
Claim 30
Dependent Claim
22 words
The stent of claim 26 , wherein the circumferenitally offset connecting links form a spiral pattern along the length of the stent.
Claim 31
Dependent Claim
14 words
The stent of claim 21 , wherein the stent is formed from a tube.
Claim 32
Dependent Claim
15 words
The stent of claim 21 , wherein the stent is formed from a metal alloy.
Claim 33
Dependent Claim
14 words
The stent of claim 21 , wherein the stent is formed from stainless steel.
Claim 34
Dependent Claim
16 words
The stent of claim 21 , wherein the stent is formed from a shape memory alloy.
Claim 35
Dependent Claim
134 words
A radiopaque intravascular stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter; each cylindrical ring having a proximal end and a distal end and a cylindrical wall extending circumferentially between the proximal end and the distal end of the cylindrical ring; and at least a portion of each ring having a higher mass than the rest of the ring, and wherein the portion of adjacent rings having a higher mass are circumferentially offset such that a pattern of higher mass metal is defined, the pattern extending from the proximal end of the stent to the distal end of the stent; wherein the stent is a unitary structure formed from a single material.
Claim 36
Dependent Claim
134 words
A radiopaque intravascular stent for use in a body lumen, comprising: a plurality of cylindrical rings interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter; each cylindrical ring having a proximal end and a distal end and a cylindrical wall extending circumferentially between the proximal end and the distal end of the cylindrical ring; and at least a portion of each ring having a higher mass than the rest of the ring, and wherein the portion of adjacent rings having a higher mass are circumferentially offset such that a pattern of higher mass metal is defined, the pattern extending from the proximal end of the stent to the distal end of the stent; wherein the stent is a unitary structure formed from a single material.
Claim 37
Dependent Claim
12 words
The stent of claim 32 , wherein the pattern defined is geometric.
Claim 38
Dependent Claim
12 words
The stent of claim 33 , wherein the geometric pattern is helical.
Claim 39
Dependent Claim
21 words
The stent of claim 32 , wherein the portion of each ring having higher mass includes at least one connecting link.
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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) | 2006-11-24 | 2007-05-26 | 2007-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-11-24 | 2011-05-26 | 2011-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-11-24 | 2015-05-26 | 2015-11-25 | $7700.00 | Window Closed / Lapsed |