Patent US4043346A successfully refreshed from Google Patents.
Patent US5207706A successfully refreshed from Google Patents.
US5207706A
Expired / Lapsed
US
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Method and means for gold-coating implantable intravascular devices
Assignee: Individual
•
Filing: 1991-01-07
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Granted: 1993-05-04
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Expires: 2011-01-07
Abstract
Abstract Implantable vascular prostheses, formed of synthetic, woven fibers are coated with a thin layer of metallic gold sufficient to create a continuous coating over the surfaces of the fibers that come into contact with blood. The coating is applied by vapor deposition or sputtering to coat the fibers without blocking or bridging the interstices formed by the intersection of the fibers.
Inventors
- 👤 Gerald Menaker, M.D.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:53
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/507; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L27/28; A61L27/30; A61L27/306; A61L31/00; A61L31/08; A61L31/082; A61L31/088; A61L33/00; A61L33/02; A61L33/022; A61F2310/00; A61F2310/00389; A61F2310/00395; A61F2310/00419; A61F2310/00568; A61F2310/00928
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
87 words
In a vascular graft for implanting into the blood circulatory system of a living recipient, said graft formed from a woven fabric of `synthetic` material polymeric substrate, said fabric characterized by interstices created by the woven nature of the fabric another, said graft having a surface formed by said fabric, said surface for exposure to the blood of said recipient, the improvement comprising: a thin layer of metallic gold applied to coat said fabric forming said surface, said layer applied to leave said interstices open and unblocked.
Claim 2
Dependent Claim
87 words
In a vascular graft for implanting into the blood circulatory system of a living recipient, said graft formed from a woven fabric of `synthetic` material polymeric substrate, said fabric characterized by interstices created by the woven nature of the fabric another, said graft having a surface formed by said fabric, said surface for exposure to the blood of said recipient, the improvement comprising: a thin layer of metallic gold applied to coat said fabric forming said surface, said layer applied to leave said interstices open and unblocked.
Claim 3
Dependent Claim
31 words
The construction of claim 1 wherein said vascular graft further comprises a tubular body formed from said fabric, said tubular body having an inner wall, said inner wall coated with gold.
Claim 4
Dependent Claim
17 words
The construction of claim 1 wherein said layer of metallic gold is vapor-deposited onto said vascular graft.
Claim 5
Dependent Claim
17 words
The construction of claim 1 wherein said layer of metallic gold i sputtered onto said vascular graft.
Claim 6
Dependent Claim
12 words
The construction of claim 1 wherein said synthetic material is tetrafluoroethylene polymer.
Claim 7
Dependent Claim
13 words
The construction of claim 1 wherein said synthetic material is polyethylene glycol terephthalate.
Claim 8
Dependent Claim
13 words
The construction of claim 1 wherein said synthetic material is expanded microporous polytetrafluoroethylene.
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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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |