Patent US5707387A successfully refreshed from Google Patents.
US5707387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible stent
Assignee: Individual
•
Filing: 1996-03-25
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Granted: 1998-01-13
•
Expires: 2016-03-25
Abstract
Abstract A tubular stent is disclosed that is made of a series of bands having a generally tubular shape with an open end. Each band has an open rectangular form made of an elongated material. The bands have the open ends (or interruptions) in an offset manner and each band has crosstie or ties which are either rigid or flexible. Ties, even if they are straight, can be disposed close to each other, or further away from each other, and can vary in number in order to adjust the relative stiffness of the stent. Each of the bands are preferably a generally rectangular shape and can be made from a wire of a variety of different cross-sections, or can be cut from a flat sheet, or burned out of a cylindrical shape.
Inventors
- 👤 Bandula Wijay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/88; A61F2002/9155
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
156 words
A stent comprising A plurality of bands, each said band composed of an elongated solid wire-like material formed into a closed and substantially rectangular shape, said substantially rectangular shape having two ends, a longitudinal axis along its length and extending between said two ends, and a horizontal axis; wherein each band is offset from the adjacent band such that the corresponding band ends are offset from each other; and wherein at least one cross-tie member extends between each pair of adjacent bands thereby connecting said bands; and wherein said plurality of bands are adapted to be rolled about said band horizontal axis to form a cylindrical stent having a gap between the two ends of each rolled band thus resulting in adjacent bands having relatively offset gaps; and wherein said bands are adapted to move such that the size of the gap changes in order to accommodate necessary changes in the cylindrical shape of the stent.
Claim 2
Dependent Claim
156 words
A stent comprising A plurality of bands, each said band composed of an elongated solid wire-like material formed into a closed and substantially rectangular shape, said substantially rectangular shape having two ends, a longitudinal axis along its length and extending between said two ends, and a horizontal axis; wherein each band is offset from the adjacent band such that the corresponding band ends are offset from each other; and wherein at least one cross-tie member extends between each pair of adjacent bands thereby connecting said bands; and wherein said plurality of bands are adapted to be rolled about said band horizontal axis to form a cylindrical stent having a gap between the two ends of each rolled band thus resulting in adjacent bands having relatively offset gaps; and wherein said bands are adapted to move such that the size of the gap changes in order to accommodate necessary changes in the cylindrical shape of the stent.
Claim 3
Dependent Claim
27 words
The stent of claim 1, wherein: said crossties are disposed adjacent and in close proximity to and on either side of said interruption on each said band.
Claim 4
Dependent Claim
31 words
The stent of claim 1, wherein: said crossties are disposed adjacent each other and closer to one side of the gap then they are to the other side of the gap.
Claim 5
Dependent Claim
15 words
The stent of claim 1, further comprising: each band has an open generally rectangular form.
Claim 6
Dependent Claim
16 words
The stent of claim 1, further comprising: at least some of said crossties are substantially straight.
Claim 7
Dependent Claim
18 words
The stent of claim 1, further comprising: at least some of said crossties contain at least one bend.
Claim 8
Dependent Claim
16 words
The stent of claim 6, further comprising: all of said crossties contain at least two bends.
Claim 9
Dependent Claim
14 words
The stent of claim 1, further comprising: all of said crossties are substantially straight.
Claim 10
Dependent Claim
16 words
The stent of claim 2, further comprising: at least some of said crossties are substantially straight.
Claim 11
Dependent Claim
14 words
The stent of claim 2, further comprising: all of said crossties are substantially straight.
Claim 12
Dependent Claim
15 words
The stent of claim 1, further comprising: said bands are self-expanding for placing the stent.
Claim 13
Dependent Claim
19 words
The stent of claim 1, further comprising: said bands are expandable with a delivery device for placing the stent.
Claim 14
Dependent Claim
15 words
The stent of claim 8, further comprising: said bands are self-expanding for placing the stent.
Claim 15
Dependent Claim
19 words
The stent of claim 8, further comprising: said bands are expandable with a delivery device for placing the stent.
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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) | 2001-01-12 | 2001-07-14 | 2002-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-12 | 2005-07-14 | 2006-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-12 | 2009-07-14 | 2010-01-13 | $7700.00 | Window Closed / Lapsed |