US5843089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent lining
Assignee: Boston Scientific Corp
•
Filing: 1996-09-20
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Granted: 1998-12-01
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Expires: 2016-09-20
Abstract
Abstract The invention features a catheter assembly and methods for delivering a hydrogel-lined stent to a body lumen, and methods for lining a stent with a hydrogel. The assembly includes a catheter which has a balloon at least a portion of which is coated with a hydrogel and an expansible stent mounted on the balloon in a contracted condition for passage with the catheter to a site of a body. Expansion of the balloon lodges the stent in the body with hydrogel coated on the inner surfaces of the stent as a lining.
Inventors
- 👤 Ronald A. Sahatjian
- 👤 James J. Barry
- 👤 Maria Palasis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:41
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/95; A61F2/958; A61K; A61K38/00; A61K38/16; A61K38/43; A61K38/46; A61K38/48; A61K38/49; A61K48/00; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0024; A61L; A61L29/00; A61L29/08; A61L29/085; A61L29/14; A61L29/145; A61L29/16; A61L31/00; A61L31/08; A61L31/10; A61L31/14; A61L31/145; A61L31/16; A61L33/00; A61L33/0005; A61L33/0011; A61L33/0023; A61L33/0029; A61L33/0047; A61M; A61M16/00; A61M16/04; A61M16/0475; A61M16/0477; A61M16/0481; A61M25/00; A61M25/0043; A61M25/0045; A61M25/10; A61M25/104; A61F2/0077; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2250/00; A61F2250/0058; A61F2250/0067; A61L2300/00; A61L2300/40; A61L2300/416; A61L2300/42; A61L2300/60; A61L2300/606; A61M2025/0046; A61M2025/0057; A61M25/01; A61M25/09; A61M2025/09175; A61M2025/09183; A61M25/1011; A61M2025/1013; A61M2025/1043; A61M2025/105; A61M2025/1086; A61M2025/1093; A61M2205/00; A61M2205/02; A61M2205/0266
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
79 words
A method for lining a stent, comprising (a) providing a catheter assembly comprising a balloon at least a portion of which is coated with a hydrogel, wherein an expansible stent is mounted on said balloon in a contracted condition, (b) introducing said assembly into a body lumen, and (c) inflating said balloon to lodge said stent in said body lumen and to release said hydrogel from said coated portion to an inner surface of said stent as a lining.
Claim 2
Independent Claim
79 words
A method for lining a stent, comprising (a) providing a catheter assembly comprising a balloon at least a portion of which is coated with a hydrogel, wherein an expansible stent is mounted on said balloon in a contracted condition, (b) introducing said assembly into a body lumen, and (c) inflating said balloon to lodge said stent in said body lumen and to release said hydrogel from said coated portion to an inner surface of said stent as a lining.
Claim 3
Dependent Claim
13 words
The method of claim 1, wherein said body lumen is a blood vessel.
Claim 4
Dependent Claim
12 words
The method of claim 2, wherein said vessel is an occluded artery.
Claim 5
Dependent Claim
12 words
The method of claim 1, wherein said hydrogel comprises a therapeutic agent.
Claim 6
Independent Claim
83 words
A method of lining a stent positioned in a body lumen, comprising: (a) providing a catheter comprising a balloon at least a portion of which is coated with a hydrogel, (b) introducing said catheter into said body lumen, (c) advancing said catheter in said body lumen until said coated portion is positioned proximate to an inner surface of said stent; and (d) inflating said balloon to release said hydrogel from said coated portion to said inner surface of said stent as a lining.
Claim 7
Independent Claim
83 words
A method of lining a stent positioned in a body lumen, comprising: (a) providing a catheter comprising a balloon at least a portion of which is coated with a hydrogel, (b) introducing said catheter into said body lumen, (c) advancing said catheter in said body lumen until said coated portion is positioned proximate to an inner surface of said stent; and (d) inflating said balloon to release said hydrogel from said coated portion to said inner surface of said stent as a lining.
Claim 8
Dependent Claim
10 words
The method of claim 5, further comprising crosslinking said hydrogel.
Claim 9
Dependent Claim
15 words
The method of claim 5, wherein said catheter further comprises a sheath over said hydrogel.
Claim 10
Dependent Claim
14 words
The method of claim 7, comprising removing said sheath prior to inflating said balloon.
Claim 11
Independent Claim
117 words
A method of lining a stent positioned in a body lumen, comprising (a) providing a catheter comprising a balloon and a delivery port, wherein said balloon comprises a first layer and a second outer aperatured layer overlying said delivery port, (b) introducing said catheter into said body lumen, (c) advancing said catheter in said body lumen until said outer aperatured layer is positioned proximate to an inner surface of said stent; (d) delivering a hydrogel into a space between said first layer and said second outer aperatured layer, and (d) inflating said balloon to press said hydrogel through said outer aperatured layer, wherein said hydrogel is deposited on said inner surface of said stent as a lining.
Claim 12
Independent Claim
117 words
A method of lining a stent positioned in a body lumen, comprising (a) providing a catheter comprising a balloon and a delivery port, wherein said balloon comprises a first layer and a second outer aperatured layer overlying said delivery port, (b) introducing said catheter into said body lumen, (c) advancing said catheter in said body lumen until said outer aperatured layer is positioned proximate to an inner surface of said stent; (d) delivering a hydrogel into a space between said first layer and said second outer aperatured layer, and (d) inflating said balloon to press said hydrogel through said outer aperatured layer, wherein said hydrogel is deposited on said inner surface of said stent as a lining.
Claim 13
Dependent Claim
10 words
The method of claim 9, further comprising crosslinking said hydrogel.
Claim 14
Independent Claim
110 words
A method of selectively lining a permeable stent to treat an aneurism, comprising (a) providing a catheter comprising a balloon at least a portion of which is coated with a hydrogel, (b) introducing said catheter into an aneurismal blood vessel comprising said permeable stent in the region of said aneurism, (c) advancing said catheter in said vessel until said coated portion is positioned proximate to said aneurism; and (d) inflating said balloon to release said hydrogel from said coated portion to an inner surface of said stent proximate to said aneurism to selectively line said stent, wherein said hydrogel renders said surface impermeable thereby reducing blood flow into said aneurism.
Claim 15
Independent Claim
110 words
A method of selectively lining a permeable stent to treat an aneurism, comprising (a) providing a catheter comprising a balloon at least a portion of which is coated with a hydrogel, (b) introducing said catheter into an aneurismal blood vessel comprising said permeable stent in the region of said aneurism, (c) advancing said catheter in said vessel until said coated portion is positioned proximate to said aneurism; and (d) inflating said balloon to release said hydrogel from said coated portion to an inner surface of said stent proximate to said aneurism to selectively line said stent, wherein said hydrogel renders said surface impermeable thereby reducing blood flow into said aneurism.
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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) | 2001-11-30 | 2002-06-01 | 2002-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-30 | 2006-06-01 | 2006-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-30 | 2010-06-01 | 2010-12-01 | $7700.00 | Window Closed / Lapsed |