US3625745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antithrombogenic article and process
Assignee: General Electric Co
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Filing: 1970-03-18
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Granted: 1971-12-07
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Expires: 1990-03-18
Abstract
Abstract A thin, continuous adherent coating is formed on a substrate by ultraviolet surface photopolymerization of a synthetic organic antithrombogenic compound in the gaseous phase. The resulting coated article exhibits antithrombogenic behavior and is suitable for prosthetic use.
Inventors
- 👤 Archibald N Wright
- 👤 Hans-Dieter Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/60; A; A61; A61L; A61L33/00; A61L33/0005; B05D3/00; B05D3/06; B05D3/061; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31678
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
26 words
A process according to claim 1 wherein said synthetic organic antithrombogenic compound is selected from the group consisting of an anticoagulant compound and a fibrinolytic compound.
Claim 2
Dependent Claim
15 words
A process according to claim 1 wherein said synthetic organic antithrombogenic compound is vinyl substituted.
Claim 3
Dependent Claim
27 words
A process according to claim 2 wherein said anticoagulant compound is selected from the group consisting of bishydroxycoumarin, ethyl biscoumacetate, 3-(alpha-acetonylbenzyl)-4-hydroxycoumarin, 2-phenylindane-1,3-dione, 2(p-(phenylsulfonyl) phenyl)-1,3-indanedione, and 2-diphenylacetyl-1, 3-indanedione.
Claim 4
Dependent Claim
31 words
A process according to claim 2 wherein said fibrinolytic compound is sElected from the group consisting of epsilon -aminocaproic acid, p-aminobenzoic acid, salicylic acid, aspirin, phenylbutazone, urethane, dextran, chlorpheniramine, and dipyridamole.
Claim 5
Dependent Claim
12 words
A process according to claim 1 wherein said substrate is a metal.
Claim 6
Dependent Claim
12 words
A process according to claim 1 wherein said substrate is a nonmetal.
Claim 7
Dependent Claim
57 words
An antithrombogenic article comprised of a substrate the surface of which is coated with an adherent continuous thin coating of a surface photopolymerized vapor of a synthetic organic antithrombogenic compound, said synthetic organic antithrombogenic compound being vaporizable in a substantial vacuum by heat without being significantly degraded to produce a vapor pressure of less than 10 torr.
Claim 8
Dependent Claim
27 words
An antithrombogenic article according to claim 8 wherein said synthetic organic antithrombogenic compound is selected from the group consisting of an anticoagulant compound and a fibrinolytic compound.
Claim 9
Dependent Claim
28 words
An antithrombogenic article according to claim 9 wherein said anticoagulant compound is selected from the group consisting of bishydroxycoumarin, ethyl biscoumacetate, 3-(alpha-acetonylbenzyl)-4-hydroxycoumarin, 2-phenylindane- 1,3-dione, 2(p-(phenylsulfonyl) phenyl)-1,3-indanedione, and 2-diphenylacetyl-1,3-indanedione.
Claim 10
Dependent Claim
32 words
An antithrombogenic article according to claim 9 wherein said fibrinolytic compound is selected from the group consisting of epsilon -aminocaproic acid, p-aminobenzoic acid, salicylic acid, aspirin, phenylbutazone, urethane, dextran, chlorpheniramine, and dipyridamole.
Claim 11
Dependent Claim
13 words
An antithrombogenic article according to claim 8 wherein said substrate is a metal.
Claim 12
Dependent Claim
13 words
An antithrombogenic article according to claim 8 wherein said substrate is a nonmetal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |