US6042597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical stent design
Assignee: Boston Scientific Scimed Inc
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Filing: 1998-10-23
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Granted: 2000-03-28
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Expires: 2018-10-23
Abstract
Abstract An expandable tubular reinforcing member used for body lumens such as blood vessels, the reinforcing member being formed of a continuous elongated helical element comprised of spaced undulating portions forming end loop portions and including a plurality of curvilinear connector elements extending between and interconnecting at least some of the adjacent undulating portions of the helical element over its length.
Inventors
- 👤 Graig L. Kveen
- 👤 Burns P. Doran
- 👤 Robert T. Judnitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/88; A61F2002/91508; A61F2002/91516; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
88 words
A stent for implantation in a body lumen, the stent having an open-ended tubular shape defined by a structure comprising: at least one continuous elongated helical band element comprised of substantially uniform shaped and spaced undulating portions forming end loop portions, the helical element extending substantially over the length of the stent body, each of the undulating portions forming a peak and a trough, and a plurality of curvilinear elements extending between and interconnecting the peaks of the adjacent, undulating portions of the helical element over its length.
Claim 2
Dependent Claim
88 words
A stent for implantation in a body lumen, the stent having an open-ended tubular shape defined by a structure comprising: at least one continuous elongated helical band element comprised of substantially uniform shaped and spaced undulating portions forming end loop portions, the helical element extending substantially over the length of the stent body, each of the undulating portions forming a peak and a trough, and a plurality of curvilinear elements extending between and interconnecting the peaks of the adjacent, undulating portions of the helical element over its length.
Claim 3
Dependent Claim
15 words
The stent of claim 1 in which the undulating portions are in a sinusoidal pattern.
Claim 4
Dependent Claim
18 words
The stent of claim 1 in which the curvilinear elements extend between the loops of the undulating portions.
Claim 5
Dependent Claim
15 words
The stent of claim 1 in which the curvilinear elements include at least one bend.
Claim 6
Dependent Claim
11 words
The stent of claim 4 in which the bend is U-shaped.
Claim 7
Dependent Claim
15 words
The stent of claim 1 in which the curvilinear elements include at least two bends.
Claim 8
Dependent Claim
11 words
The stent of claim 6 in which the bends are U-shaped.
Claim 9
Dependent Claim
14 words
The stent of claim 6 in which the bends open in substantially opposite directions.
Claim 10
Dependent Claim
16 words
The stent of claim 1 wherein adjacent undulating portions of the helical element are in phase.
Claim 11
Dependent Claim
17 words
The stent of claim 1 wherein adjacent undulating portions of the helical element are out of phase.
Claim 12
Dependent Claim
16 words
The stent of claim 1 wherein the interconnecting elements extend between longitudinally spaced loop end portions.
Claim 13
Dependent Claim
28 words
The stent of claim 1 wherein the interconnecting elements extend between longitudinally spaced helical portions from and to loop end portions which are diagonally spaced from each other.
Claim 14
Dependent Claim
65 words
A stent for implantation in a body lumen, the stent having an open-ended tubular shape defined by a structure comprising: at least one helically arranged band element forming a tubular configuration, the band being made up of a plurality of uniformly shaped closed, interconnected cells; a plurality of curvilinear connector elements extending between and interconnecting longitudinally spaced portions of the band over its tubular length.
Claim 15
Dependent Claim
65 words
A stent for implantation in a body lumen, the stent having an open-ended tubular shape defined by a structure comprising: at least one helically arranged band element forming a tubular configuration, the band being made up of a plurality of uniformly shaped closed, interconnected cells; a plurality of curvilinear connector elements extending between and interconnecting longitudinally spaced portions of the band over its tubular length.
Claim 16
Dependent Claim
14 words
The stent of claim 13 in which the cells of the band are rectangular.
Claim 17
Dependent Claim
12 words
The stent of claim 13 in which the curvilinear connectors are sinusoidal.
Claim 18
Dependent Claim
103 words
A stent comprising: a continuous elongated helical band element comprised of undulating portions forming end loop portions, the helical band element extending substantially over the length of the stent body, each of the undulating portions forming a peak and a trough, each of the undulating portions disposed at an oblique angle relative to the longitudinal axis, and a plurality of curvilinear elements, each of the curvilinear elements disposed at an oblique angle relative to the longitudinal axis, the curvilinear elements forming a helical pattern between and interconnecting the peaks and troughs of the adjacent, undulating portions of the helical element over its length.
Claim 19
Dependent Claim
103 words
A stent comprising: a continuous elongated helical band element comprised of undulating portions forming end loop portions, the helical band element extending substantially over the length of the stent body, each of the undulating portions forming a peak and a trough, each of the undulating portions disposed at an oblique angle relative to the longitudinal axis, and a plurality of curvilinear elements, each of the curvilinear elements disposed at an oblique angle relative to the longitudinal axis, the curvilinear elements forming a helical pattern between and interconnecting the peaks and troughs of the adjacent, undulating portions of the helical element over its length.
Claim 20
Dependent Claim
16 words
The stent of claim 16 wherein the undulating portions have a substantially uniform size and shape.
Claim 21
Dependent Claim
27 words
The stent of claim 17 wherein all of the undulating portions are disposed at substantially the same angle relating to the longitudinal axis throughout the helical band.
Claim 22
Dependent Claim
32 words
The stent of claim 17 wherein one or more of the undulating portions are disposed at different oblique angles, relative to one another, relating to the longitudinal axis throughout the helical band.
Claim 23
Dependent Claim
27 words
The stent of claim 17 wherein all of the curvilinear elements are disposed at substantially the same angle relating to the longitudinal axis throughout the helical band.
Claim 24
Dependent Claim
32 words
The stent of claim 17 wherein one or more of the curvilinear elements are disposed at different oblique angles, relative to one another, relating to the longitudinal axis throughout the helical band.
Claim 25
Dependent Claim
22 words
The stent of claim 13 further comprising at least one slot which is at least partially interspaced between the interconnected closed cells.
Claim 26
Dependent Claim
12 words
The stent of claim 13 wherein the cells are substantially diamond shaped.
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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) | 2003-03-28 | 2003-09-27 | 2004-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-28 | 2007-09-27 | 2008-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-28 | 2011-09-27 | 2012-03-28 | $7700.00 | Window Closed / Lapsed |