Patent US6485509B2 successfully refreshed from Google Patents.
US6485509B2
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Stent having variable properties and method of its use
Assignee: Boston Scientific Scimed Inc
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Filing: 2000-12-12
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Granted: 2002-11-26
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Expires: 2020-12-12
Abstract
Abstract A stent and method of its use, the stent in its expanded configuration, exhibiting varying outward radial force along its length. In use, the expanded stent is of a tapered configuration which provides greater force in vessel regions requiring greater force and less force in regions requiring less. In particular the stent is useful in the ostium regions and at areas of bifurcation in vessels. Varying force over the length of the stent is achieved by varying the number of elements, the density of elements, the thickness of the elements making up the stent body, and maintaining a substantially metal to artery ratio in the expanded stent over its length.
Inventors
- 👤 Douglas P. Killion
- 👤 James R. Lininger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:43
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2250/00; A61F2250/0014; A61F2250/0018; A61F2250/0029; A61F2250/0039; A61F2250/0048
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
72 words
An unexpanded stent having a first portion and a second portion, the first and second portions connected one to the other, the first portion comprising a plurality of abutting interconnected serpentine bands of like configuration, the second portion comprising a plurality of spaced serpentine bands of like configuration, spaced serpentine bands which are adjacent one another connected by connectors whose first and second ends are circumferentially and longitudinally offset from one another.
Claim 2
Dependent Claim
72 words
An unexpanded stent having a first portion and a second portion, the first and second portions connected one to the other, the first portion comprising a plurality of abutting interconnected serpentine bands of like configuration, the second portion comprising a plurality of spaced serpentine bands of like configuration, spaced serpentine bands which are adjacent one another connected by connectors whose first and second ends are circumferentially and longitudinally offset from one another.
Claim 3
Dependent Claim
72 words
The stent of claim 1 wherein the spaced serpentine bands include a first spaced serpentine band, a second spaced serpentine band, and a third spaced serpentine band, the first spaced serpentine band connected to the second spaced serpentine band by first connectors and the second spaced serpentine band connected to the third spaced serpentine band by second connectors where the number of first connectors is greater than the number of second connectors.
Claim 4
Dependent Claim
43 words
The stent of claim 2 wherein the spaced serpentine bands further include a fourth spaced serpentine band which is connected to the third spaced serpentine band via third connectors where the number of second connectors is greater than the number of third connectors.
Claim 5
Dependent Claim
10 words
The stent of claim 3 wherein the connectors are linear.
Claim 6
Dependent Claim
34 words
The stent of claim 1 wherein the first portion comprises a plurality of first struts and the second portion comprises a plurality of second struts, the first struts being wider than the second struts.
Claim 7
Dependent Claim
34 words
The stent of claim 1 wherein the first portion comprises a plurality of first struts and the second portion comprises a plurality of second struts, the first struts being shorter than the second struts.
Claim 8
Dependent Claim
39 words
A stent having a first portion and a second portion, the first portion connected to the second portion, the first portion comprising a plurality of symmetric cells, the second portion comprising a plurality of connected, spaced apart serpentine bands.
Claim 9
Dependent Claim
39 words
A stent having a first portion and a second portion, the first portion connected to the second portion, the first portion comprising a plurality of symmetric cells, the second portion comprising a plurality of connected, spaced apart serpentine bands.
Claim 10
Dependent Claim
20 words
The stent of claim 7 wherein serpentine bands which are adjacent one another are connected via a plurality of connectors.
Claim 11
Dependent Claim
22 words
The stent of claim 8 wherein the connectors have first and second ends which are circumferentially and longitudinally offset from one another.
Claim 12
Dependent Claim
24 words
The stent of claim 9 wherein the spacing between connectors which are circumferentially adjacent one another increase along the length of the second portion.
Claim 13
Dependent Claim
26 words
The stent of claim 9 wherein the number of connectors between serpentine segments which are adjacent one another decreases along the length of the second portion.
Claim 14
Dependent Claim
39 words
The stent of claim 7 further comprising a third portion connected to the first portion, the third portion comprising a plurality of connected, spaced apart serpentine bands, the first portion disposed between the second portion and the third portion.
Claim 15
Dependent Claim
39 words
The stent of claim 12 wherein serpentine bands in the third portion which are adjacent one another are connected via a plurality of connectors having first end and second ends which are longitudinally and circumferentially offset from one another.
Claim 16
Dependent Claim
24 words
The stent of claim 13 wherein serpentine bands in the third portion which are adjacent one another are connected via a plurality of connectors.
Claim 17
Dependent Claim
30 words
The stent of claim 14 wherein the connectors between adjacent serpentine bands in the third portion have first and second ends which are circumferentially and longitudinally offset from one another.
Claim 18
Dependent Claim
28 words
The stent of claim 15 wherein the spacing between connectors in the third portion which are circumferentially adjacent one another increase along the length of the third portion.
Claim 19
Dependent Claim
26 words
The stent of claim 15 wherein the number of connectors between serpentine segments which are adjacent one another decreases along the length of the second portion.
Claim 20
Dependent Claim
34 words
The stent of claim 7 wherein the first portion comprises a plurality of first struts and the second portion comprises a plurality of second struts, the first struts being wider than the second struts.
Claim 21
Dependent Claim
34 words
The stent of claim 7 wherein the first portion comprises a plurality of first struts and the second portion comprises a plurality of second struts, the first struts being shorter than the second struts.
Claim 22
Dependent Claim
36 words
The stent of claim 7 wherein the first portion comprises a plurality of first struts and the second portion comprises a plurality of second struts, the first struts being shorter and wider than the second struts.
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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) | 2005-11-25 | 2006-05-27 | 2006-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-25 | 2010-05-27 | 2010-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-25 | 2014-05-27 | 2014-11-26 | $7700.00 | Window Closed / Lapsed |