US6264686B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravascular stent intended in particular for angioplasty
Assignee: Individual
•
Filing: 1998-02-24
•
Granted: 2001-07-24
•
Expires: 2018-02-24
Abstract
Abstract An expandable, open-work intravascular stent, having a variable-length of generatrices and an arrangement of radiopaque marker points, is particularly suited for angioplasty as the stent reinforces vessels at bifurcation points while maintaining satisfactory hydrodynamics.
Inventors
- 👤 Régis Rieu
- 👤 Patrice Bergeron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/02; A61F2/04; A61F2/06; A61F2002/065; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
195 words
A system for maintaining a patient lumen at a bifurcation of an anatomic canal comprising: two slanted-end stents each of which comprises a radially expanded mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a slanted front end defined by a plane oriented relative to the axis at an angle less than 90 degrees; one V-shaped-end stent comprising a radially expandable mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a front end defined by the intersection of two planes intersected to form a V-shaped front end as viewed radially; in which the V-shaped-end stent is implantable in a common branch of a bifurcation of the canal and oriented so that the V-shaped front end extends into the bifurcation; and in which the slanted-end stents are separately implantable in secondary branches of the bifurcation and are oriented so that each slanted front end extends into the bifurcation in abutting relation to the V-shaped front end, thereby providing reinforcing coverage to substantially all affected area of the bifurcation.
Claim 2
Independent Claim
195 words
A system for maintaining a patient lumen at a bifurcation of an anatomic canal comprising: two slanted-end stents each of which comprises a radially expanded mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a slanted front end defined by a plane oriented relative to the axis at an angle less than 90 degrees; one V-shaped-end stent comprising a radially expandable mesh structure substantially forming a cylinder having a longitudinal axis, a back end defined by a plane substantially perpendicular to the axis, and a front end defined by the intersection of two planes intersected to form a V-shaped front end as viewed radially; in which the V-shaped-end stent is implantable in a common branch of a bifurcation of the canal and oriented so that the V-shaped front end extends into the bifurcation; and in which the slanted-end stents are separately implantable in secondary branches of the bifurcation and are oriented so that each slanted front end extends into the bifurcation in abutting relation to the V-shaped front end, thereby providing reinforcing coverage to substantially all affected area of the bifurcation.
Claim 3
Dependent Claim
24 words
The system of claim 1 in which the plane defining the slanted front ends is oriented relative to the axis at approximately 50 degrees.
Claim 4
Dependent Claim
18 words
The system of claim 1 further comprising radiopaque markers forming a trihedron position on each of said 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) | 2004-07-23 | 2005-01-22 | 2005-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-07-23 | 2009-01-22 | 2009-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-07-23 | 2013-01-22 | 2013-07-24 | $7700.00 | Window Closed / Lapsed |