US20030204245A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overlapping coated stents
Assignee: Medtronic Vascular Inc
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Filing: 2002-04-26
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Granted: —
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Expires: 2022-04-26
Abstract
Abstract The present invention avoids a patient receiving a double dose of a therapeutic agent when a coated stent is overlapped with another coated stent within a vessel. A stent having a therapeutic coating on a portion of the stent is delivered within a vessel such that the portion of the stent not having a therapeutic coating is inserted within or overlaps a second coated stent. A radiopaque marker on the stent or delivery catheter guides positioning of the stent such that there is minimal or no overlap of the therapeutic coatings on the two stents.
Inventors
- 👤 Jerry Brightbill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61L; A61L31/00; A61L31/14; A61L31/16; A61L31/18; A61F2/852; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2002/072; A61F2002/826; A61F2002/91533; A61F2002/91541; A61F2002/9155; A61F2002/91558; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/006; A61F2250/0063; A61F2250/0067; A61F2250/0096; A61F2250/0098; A61L2300/00; A61L2300/40; A61L2300/416; A61L2300/60; A61L2300/606
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
42 words
1 . A first stent having a therapeutic coating designed for insertion into a second stent which also has a therapeutic coating, the first stent comprising: a stent framework; and a therapeutic coating disposed on only a portion of the stent framework.
Claim 2
Dependent Claim
42 words
1 . A first stent having a therapeutic coating designed for insertion into a second stent which also has a therapeutic coating, the first stent comprising: a stent framework; and a therapeutic coating disposed on only a portion of the stent framework.
Claim 3
Dependent Claim
43 words
2 . The first stent of claim 1 further comprising: at least one radiopaque marker positioned to guide insertion of the stent into a second stent within a vessel such that there is minimal or no overlap of therapeutic coatings on both stents.
Claim 4
Dependent Claim
24 words
3 . The first stent of claim 2 wherein at least one radiopaque marker is positioned to indicate an end of the therapeutic coating.
Claim 5
Dependent Claim
35 words
4 . The first stent of claim 1 wherein the therapeutic coating includes one or more agents selected from a group consisting of an antineoplastic agent, an antiproliferative agent, an antibiotic, and an anti-inflammatory agent.
Claim 6
Dependent Claim
15 words
5 . The first stent of claim 1 wherein the therapeutic coating inhibits vascular restenosis.
Claim 7
Dependent Claim
38 words
6 . The first stent of claim 1 wherein the therapeutic coating comprises a polymer and one or more agent(s) selected from a group consisting of an antineoplastic agent, an antiproliferative agent, an antibiotic, and an anti-inflammatory agent.
Claim 8
Dependent Claim
40 words
7 . A coated stent designed for insertion into another stent, comprising: a stent framework; a therapeutic coating disposed on at least a portion of the stent framework; and a non-therapeutic coating disposed on a portion of the stent framework.
Claim 9
Dependent Claim
40 words
7 . A coated stent designed for insertion into another stent, comprising: a stent framework; a therapeutic coating disposed on at least a portion of the stent framework; and a non-therapeutic coating disposed on a portion of the stent framework.
Claim 10
Dependent Claim
42 words
8 . The stent of claim 7 further comprising: at least one radiopaque marker positioned to guide insertion of the stent into a second stent within a vessel such that there is minimal or no overlap of therapeutic coatings on both stents.
Claim 11
Dependent Claim
29 words
9 . The stent of claim 8 wherein at least one radiopaque marker is positioned to indicate an end of a portion of the stent having a therapeutic coating.
Claim 12
Dependent Claim
35 words
10 . The stent of claim 7 wherein the therapeutic coating includes one or more therapeutic agent(s) selected from a group consisting of an antineoplastic agent, an antiproliferative agent, an antibiotic, and an anti-inflammatory agent.
Claim 13
Dependent Claim
14 words
11 . The stent of claim 7 wherein the therapeutic coating inhibits vascular restenosis.
Claim 14
Dependent Claim
14 words
12 . The stent of claim 7 wherein the therapeutic coating is a polymer.
Claim 15
Dependent Claim
17 words
13 . The stent of claim 7 wherein the non-therapeutic coating is a protective polymer coating material.
Claim 16
Dependent Claim
15 words
14 . The stent of claim 13 wherein the non-therapeutic coating is phosphorylcholine or parylene.
Claim 17
Dependent Claim
17 words
15 . The stent of claim 7 wherein the non-therapeutic coating is applied over a therapeutic coating.
Claim 18
Dependent Claim
39 words
16 . A coated stent designed for insertion into another stent, comprising: a stent; a therapeutic coating disposed on the stent, wherein the coating is removable with a solvent; and a plurality of radiopaque markers applied to the stent.
Claim 19
Dependent Claim
39 words
16 . A coated stent designed for insertion into another stent, comprising: a stent; a therapeutic coating disposed on the stent, wherein the coating is removable with a solvent; and a plurality of radiopaque markers applied to the stent.
Claim 20
Dependent Claim
35 words
17 . The stent of claim 16 wherein the therapeutic coating includes one or more therapeutic agent(s) selected from a group consisting of an antineoplastic agent, an antiproliferative agent, an antibiotic, and an anti-inflammatory agent.
Claim 21
Dependent Claim
14 words
18 . The stent of claim 16 wherein the therapeutic coating inhibits vascular restenosis.
Claim 22
Dependent Claim
14 words
19 . The stent of claim 16 wherein the therapeutic coating is a polymer.
Claim 23
Dependent Claim
46 words
20 . A system for treating a vessel, comprising: a first stent, the first stent coated with a first therapeutic coating; a second stent, the second stent having at least a first portion and a second portion, the second portion coated with a second therapeutic coating.
Claim 24
Dependent Claim
46 words
20 . A system for treating a vessel, comprising: a first stent, the first stent coated with a first therapeutic coating; a second stent, the second stent having at least a first portion and a second portion, the second portion coated with a second therapeutic coating.
Claim 25
Dependent Claim
15 words
21 . The system of claim 20 wherein the first stent has a radiopaque marker.
Claim 26
Dependent Claim
15 words
22 . The system of claim 20 wherein the second stent has a radiopaque marker.
Claim 27
Dependent Claim
25 words
23 . The system of claim 22 wherein the radiopaque marker guides positioning of the stent within a vessel and relative to the first stent.
Claim 28
Dependent Claim
17 words
24 . The system of claim 20 wherein the first portion of the second stent is uncoated.
Claim 29
Dependent Claim
17 words
25 . The system of claim 20 wherein the first portion of the second stent is coated.
Claim 30
Dependent Claim
23 words
26 . The system of claim 25 wherein the first portion of the second stent is coated with a protective polymer coating material.
Claim 31
Dependent Claim
12 words
27 . The system of claim 26 wherein the coating is Parylene.
Claim 32
Dependent Claim
43 words
28 . The system of claim 20 wherein the therapeutic coating on the second portion of the second stent includes one or more therapeutic agent(s) selected from a group consisting of an antineoplastic agent, an antiproliferative agent, an antibiotic, and an anti-inflammatory agent.
Claim 33
Dependent Claim
135 words
29 . A method of delivering overlapping stents in a vessel, comprising: delivering a first stent including a therapeutic coating disposed on at least a portion of an exterior surface of the stent framework, the first stent including one of a visible endpoint or a radiopaque marker; expanding the first stent; delivering a second stent including a therapeutic coating disposed on at least a portion of an exterior surface of the stent framework, the second stent including one of a visible endpoint or a radiopaque marker; positioning the second stent based on the visible endpoint or radiopaque marker of the first stent and the visible endpoint or radiopaque marker of the second stent such that there is minimal or no overlap of therapeutic coatings of the first and second stents; and expanding the second stent.
Claim 34
Dependent Claim
135 words
29 . A method of delivering overlapping stents in a vessel, comprising: delivering a first stent including a therapeutic coating disposed on at least a portion of an exterior surface of the stent framework, the first stent including one of a visible endpoint or a radiopaque marker; expanding the first stent; delivering a second stent including a therapeutic coating disposed on at least a portion of an exterior surface of the stent framework, the second stent including one of a visible endpoint or a radiopaque marker; positioning the second stent based on the visible endpoint or radiopaque marker of the first stent and the visible endpoint or radiopaque marker of the second stent such that there is minimal or no overlap of therapeutic coatings of the first and second stents; and expanding the second stent.
Claim 35
Dependent Claim
32 words
30 . The method of claim 29 further comprising: using a solvent to remove a portion of the therapeutic coating from one or both stents prior to delivering one or both stents.
Claim 36
Dependent Claim
36 words
31 . A method of manufacturing a coated stent designed for insertion into another stent, comprising: providing a stent; and applying a therapeutic coating to at least a portion of an exterior surface of the stent.
Claim 37
Dependent Claim
36 words
31 . A method of manufacturing a coated stent designed for insertion into another stent, comprising: providing a stent; and applying a therapeutic coating to at least a portion of an exterior surface of the stent.
Claim 38
Dependent Claim
15 words
32 . The method of claim 31 further comprising: applying at least one radiopaque marker.
Claim 39
Dependent Claim
26 words
33 . The method of claim 31 further comprising: removing the therapeutic coating from a portion of the exterior surface of the stent using a solvent.
Claim 40
Dependent Claim
27 words
34 . The method of claim 31 further comprising: masking at least a portion of an exterior surface of the stent prior to applying a therapeutic coating.
Claim 41
Dependent Claim
17 words
35 . The method of claim 34 wherein the masking material is a protective polymer coating material.
Claim 42
Dependent Claim
15 words
36 . The method of claim 35 wherein the protective polymer coating material is Parylene.
Claim 43
Dependent Claim
21 words
37 . The method of claim 34 further comprising: removing the masking material from the stent after the coating is applied.
Claim 44
Dependent Claim
38 words
38 . The method of claim 37 wherein the stent is masked by one or more materials selected from a group consisting of an adhesive-backed material, a tube that encapsulates a portion of the stent, a removable coating.
Claim 45
Dependent Claim
38 words
39 . A stent delivery system, comprising: a catheter; a stent coupled to the catheter; a therapeutic coating on at least a portion of the stent; and a radiopaque marker on one of the catheter or the stent.
Claim 46
Dependent Claim
38 words
39 . A stent delivery system, comprising: a catheter; a stent coupled to the catheter; a therapeutic coating on at least a portion of the stent; and a radiopaque marker on one of the catheter or the stent.
Claim 47
Dependent Claim
37 words
40 . The system of claim 39 wherein the radiopaque marker guides insertion of the stent into a second stent within a vessel such that there is minimal or no overlap of therapeutic coatings on both stents.
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