US6863685B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiopacity intraluminal medical device
Assignee: Cordis US Corp
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Filing: 2001-06-19
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Granted: 2005-03-08
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Expires: 2021-06-19
Abstract
Abstract A stent or other intraluminal medical device having markers formed from housings integral with the stent and marker inserts having a higher radiopacity than the stent provides for more precise placement and post-procedural visualization in a vessel, by increasing the radiopacity of the stent under X-ray fluoroscopy. The housings are formed integral to the stent and the marker inserts are made from a material close in the galvanic series to the stent material and sized to substantially minimize the effect of galvanic corrosion.
Inventors
- 👤 Luis A. Davila
- 👤 Jorge Orlando Mendez
- 👤 Alan R. Pelton
- 👤 Karl K. Scheidt
- 👤 William D. Shaw, Jr.
- 👤 James Silver
- 👤 Christine Trepanier
- 👤 David J. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:29
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61L; A61L31/00; A61L31/02; A61L31/022; A61L31/08; A61L31/10; A61L31/14; A61L31/18; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/0067; A61F2250/0068; A61F2250/0096; A61F2250/0098; A61F2310/00; A61F2310/00389; A61F2310/0097
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
243 words
An intraluminal medical device comprising: a substantially tubular member having an inner surface defining an inner radius of curvature, an outer surface defining an outer radius of curvature, open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel; and at least one marker integral to and extending from at least one end of the substantially tubular member, the at least one marker comprising a marker housing having an inner surface and an outer surface and a marker insert having an inner surface and an outer surface, the inner surface of the marker housing and the marker insert each having a radius of curvature equal to the radius of curvature of the inner surface of the substantially tubular member, the outer surface of the marker housing having a radius of curvature equal to the radius of curvature of the outer surface of the substantially tubular member, and the outer surface of the marker insert having a radius of curvature less than the radius of curvature of the outer surface of the marker housing such that the outer surface of the marker insert is recessed below the outer surface of the marker housing, the marker housing defining an opening that is conical in the radial direction with the outer surface of the marker housing having a diameter larger than the diameter of the inner surface of the marker housing.
Claim 2
Dependent Claim
243 words
An intraluminal medical device comprising: a substantially tubular member having an inner surface defining an inner radius of curvature, an outer surface defining an outer radius of curvature, open ends, and a first diameter for insertion into a lumen of a vessel and a second diameter for anchoring in the lumen of the vessel; and at least one marker integral to and extending from at least one end of the substantially tubular member, the at least one marker comprising a marker housing having an inner surface and an outer surface and a marker insert having an inner surface and an outer surface, the inner surface of the marker housing and the marker insert each having a radius of curvature equal to the radius of curvature of the inner surface of the substantially tubular member, the outer surface of the marker housing having a radius of curvature equal to the radius of curvature of the outer surface of the substantially tubular member, and the outer surface of the marker insert having a radius of curvature less than the radius of curvature of the outer surface of the marker housing such that the outer surface of the marker insert is recessed below the outer surface of the marker housing, the marker housing defining an opening that is conical in the radial direction with the outer surface of the marker housing having a diameter larger than the diameter of the inner surface of the marker housing.
Claim 3
Dependent Claim
18 words
The intraluminal medical device according to claim 1 , wherein the intraluminal medical device comprises a superelastic alloy.
Claim 4
Dependent Claim
27 words
The intraluminal medical device according to claim 2 , wherein the superelastic alloy comprises from about 50.0 percent to about 60 percent Nickel and the remainder Titanium.
Claim 5
Dependent Claim
31 words
The intraluminal medical device according to claim 1 , wherein the marker housing comprises the same material as the intraluminal medical device and is integral thereto, thereby forming a unitary structure.
Claim 6
Dependent Claim
30 words
The intraluminal medical device according to claim 4 , wherein the marker insert comprises a material having a radiopacity higher than that of the material comprising the intraluminal medical device.
Claim 7
Dependent Claim
15 words
The intraluminal medical device according to claim 5 , wherein the marker insert comprises Tantalum.
Claim 8
Dependent Claim
23 words
The intraluminal medical device according to claim 6 , wherein the marker insert is secured in the marker housing by frictional, locking engagement.
Claim 9
Dependent Claim
23 words
The intraluminal medical device according to claim 7 , wherein the marker insert is secured in the marker housing by a protruding ridge.
Claim 10
Dependent Claim
252 words
An intraluminal medical device comprising: a thin-walled, substantially tubular member having an inner surface defining an inner radius of curvature, an outer surface defining an outer radius of curvature, open ends, and a first diameter for insertion into the lumen of a vessel and a second diameter for anchoring in the lumen of the vessel, the thin-walled tubular member comprising a superelastic alloy; and at least one marker integral to and extended from at least one end of the substantially tubular member, the at least one marker comprising a marker housing having an inner surface and an outer surface and a marker insert having an inner surface and an outer surface, the inner surface of the marker housing and the marker insert each having a radius of curvature equal to the radius of curvature of the inner surface of the substantially tubular member, the outer surface of the marker housing having a radius of curvature equal to the radius of curvature of the outer surface of the substantially tubular member, and the outer surface of the marker insert having a radius of curvature less than the radius of curvature of the outer surface of the marker housing such that the outer surface of the marker insert is recessed below the outer surface of the marker housing, the marker housing defining an opening that is conical in the radial direction with the outer surface of the marker housing having a diameter larger than the diameter of the inner surface of the marker housing.
Claim 11
Dependent Claim
252 words
An intraluminal medical device comprising: a thin-walled, substantially tubular member having an inner surface defining an inner radius of curvature, an outer surface defining an outer radius of curvature, open ends, and a first diameter for insertion into the lumen of a vessel and a second diameter for anchoring in the lumen of the vessel, the thin-walled tubular member comprising a superelastic alloy; and at least one marker integral to and extended from at least one end of the substantially tubular member, the at least one marker comprising a marker housing having an inner surface and an outer surface and a marker insert having an inner surface and an outer surface, the inner surface of the marker housing and the marker insert each having a radius of curvature equal to the radius of curvature of the inner surface of the substantially tubular member, the outer surface of the marker housing having a radius of curvature equal to the radius of curvature of the outer surface of the substantially tubular member, and the outer surface of the marker insert having a radius of curvature less than the radius of curvature of the outer surface of the marker housing such that the outer surface of the marker insert is recessed below the outer surface of the marker housing, the marker housing defining an opening that is conical in the radial direction with the outer surface of the marker housing having a diameter larger than the diameter of the inner surface of the marker housing.
Claim 12
Dependent Claim
31 words
The intraluminal medical device according to claim 9 , wherein the marker housing comprises the same material as the intraluminal medical device and is integral thereto, thereby forming a unitary structure.
Claim 13
Dependent Claim
22 words
The intraluminal medical device according to claim 10 , wherein the marker housing defines a substantially elliptical open having a predetermined curvature.
Claim 14
Dependent Claim
30 words
The intraluminal medical device according to claim 11 , wherein the marker insert comprises a material having a radiopacity higher than that of the material comprising the intraluminal medical device.
Claim 15
Dependent Claim
15 words
The intraluminal medical device according to claim 12 , wherein the marker insert comprises Tantalum.
Claim 16
Dependent Claim
29 words
The intraluminal medical device according to claim 13 , wherein the marker insert has a curvature equal to that of the curvature of the opening in the marker housing.
Claim 17
Dependent Claim
19 words
The intraluminal medical device according to claim 14 , wherein the marker insert has a diameter of 0.02 inches.
Claim 18
Dependent Claim
23 words
The intraluminal medical device according to claim 15 , wherein the marker insert is secured in the marker housing by frictional, locking engagement.
Claim 19
Dependent Claim
23 words
The intraluminal medical device according to claim 16 , wherein the marker insert is secured in the marker housing by a protruding ridge.
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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) | 2008-03-07 | 2008-09-06 | 2009-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-03-07 | 2012-09-06 | 2013-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-03-07 | 2016-09-06 | 2017-03-08 | $7700.00 | Window Closed / Lapsed |