Patent US6712843B2 successfully refreshed from Google Patents.
US6712843B2
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US
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Stent with differential lengthening/shortening members
Assignee: Boston Scientific Scimed Inc
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Filing: 2001-11-20
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Granted: 2004-03-30
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Expires: 2021-11-20
Abstract
Abstract A stent includes a first portion which does not substantially lengthen axially upon radial contraction of the first portion and a second portion which lengthens axially upon radial contraction of the second portion. The second portion extends from the first portion and constitutes a free end portion of the stent.
Inventors
- 👤 Christopher J. Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2220/00; A61F2220/0025; A61F2220/005; A61F2220/0058
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
76 words
A stent comprising a first portion which does not substantially lengthen axially upon radial contraction of the first portion and a second portion which lengthens axially upon radial contraction of the second portion, the second portion extending from the first portion and constituting a free end portion of the stent, the first portion being a non-braided tubular member, the non-braided tubular member defining a plurality of openings therein, the second portion being braided in its entirety.
Claim 2
Dependent Claim
76 words
A stent comprising a first portion which does not substantially lengthen axially upon radial contraction of the first portion and a second portion which lengthens axially upon radial contraction of the second portion, the second portion extending from the first portion and constituting a free end portion of the stent, the first portion being a non-braided tubular member, the non-braided tubular member defining a plurality of openings therein, the second portion being braided in its entirety.
Claim 3
Dependent Claim
16 words
The stent of claim 1 wherein at least a portion of the stent is balloon expandable.
Claim 4
Dependent Claim
15 words
The stent of claim 1 wherein at least a portion of the stent is self-expanding.
Claim 5
Dependent Claim
30 words
The stent of claim 1 further comprising a third portion which expands axially upon radial contraction of the stent, the third portion constituting another free end portion of the stent.
Claim 6
Dependent Claim
11 words
The stent of claim 4 wherein the third portion is braided.
Claim 7
Dependent Claim
20 words
The stent of claim 1 wherein the first portion is formed by cutting a plurality of openings in a tube.
Claim 8
Dependent Claim
19 words
The stent of claim 1 wherein the first portion is formed of a rolled sheet with openings provided therein.
Claim 9
Dependent Claim
32 words
The stent of claim 1 having a delivery configuration and an expanded configuration wherein the first portion foreshortens by less than 10% upon expansion from the delivery configuration to the expanded configuration.
Claim 10
Dependent Claim
28 words
The stent of claim 8 wherein the second portion foreshortens axially by an amount in excess of 10% upon expansion from the delivery configuration to the expanded configuration.
Claim 11
Dependent Claim
12 words
The stent of claim 1 made of a single piece of material.
Claim 12
Dependent Claim
46 words
A non-braided outer stent having at least one braided inner portion joined thereto, the non-braided outer stent defining a plurality of openings therethrough, only a portion of the non-braided outer stent being disposed about at least a portion of the at least one braided inner portion.
Claim 13
Dependent Claim
46 words
A non-braided outer stent having at least one braided inner portion joined thereto, the non-braided outer stent defining a plurality of openings therethrough, only a portion of the non-braided outer stent being disposed about at least a portion of the at least one braided inner portion.
Claim 14
Dependent Claim
11 words
The stent of claim 11 comprising a single braided inner portion.
Claim 15
Dependent Claim
24 words
The stent of claim 12 wherein the braided inner portion extends outward in an axial direction from one end of the non-braided outer stent.
Claim 16
Dependent Claim
34 words
The stent of claim 11 comprising two braided inner portions, one braided inner portion at a first end of the stent and the other braided inner portion at a second end of the stent.
Claim 17
Dependent Claim
48 words
The stent of claim 14 wherein one of the braided inner portions extends outward in an axial direction from one end of the non-braided outer stent and the other of the braided inner portions extends outward in an axial direction from another end of the non-braided outer stent.
Claim 18
Independent Claim
82 words
A method of forming a stent comprising the steps of: providing a tube, the tube being a non-braided tubular member defining a plurality of openings therethrough, the tube having a first end and a second end and a plurality of strands extending from each of the first end and second end; forming a braided portion with a flowpath therethrough at each end of the tube by braiding the strands, each braided portion having an end corresponding to an end of the stent.
Claim 19
Independent Claim
82 words
A method of forming a stent comprising the steps of: providing a tube, the tube being a non-braided tubular member defining a plurality of openings therethrough, the tube having a first end and a second end and a plurality of strands extending from each of the first end and second end; forming a braided portion with a flowpath therethrough at each end of the tube by braiding the strands, each braided portion having an end corresponding to an end of the stent.
Claim 20
Dependent Claim
16 words
The method of claim 16 wherein the braided portion comprises no more than 10 braided strands.
Claim 21
Dependent Claim
16 words
The method of claim 16 wherein the braided portion comprises no more than 8 braided strands.
Claim 22
Dependent Claim
23 words
The method of claim 16 wherein the tube having the plurality of strands extending therefrom is formed of a single piece of material.
Claim 23
Dependent Claim
24 words
The method of claim 16 wherein the braided portion shortens in an axial direction by in excess of 10% upon expansion of the stent.
Claim 24
Dependent Claim
37 words
The method of claim 16 wherein the providing step further comprises the steps of: providing a tube; removing material from at least one end of the tube to form a plurality of strands extending from the tube.
Claim 25
Dependent Claim
42 words
A method of stenting a peripheral vessel comprising the steps of: providing a stent as in claim 9 ; delivering the stent to a desired location in a peripheral vessel; radially expanding the stent at the desired location in the peripheral vessel.
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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) | 2007-03-30 | 2007-09-29 | 2008-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-30 | 2011-09-29 | 2012-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-30 | 2015-09-29 | 2016-03-30 | $7700.00 | Window Closed / Lapsed |