Patent US4677143A successfully refreshed from Google Patents.
US4677143A
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Antimicrobial compositions
Assignee: Allegiance Corp
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Filing: 1985-11-27
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Granted: 1987-06-30
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Expires: 2005-11-27
Abstract
Abstract Antimicrobial compositions finding particular utility for coating access systems, lead devices including shunts, cannulae, catheters, catheter adapters, wires and other solid or hollow tubular devices used for a variety of medical purposes is provided. The composition comprises a material selected from the group consisting of acrylonitrile-butadiene-styrene copolymers, polyvinyl chloride, mixtures thereof, polyesters, polyurethanes, styrene-block copolymers, natural and synthetic rubbers, polycarbonates, nylon and silicone rubber mixed with an oligodynamic material consisting essentially of compounds of physiological, antimicrobial metals.
Inventors
- 👤 Dean Laurin
- 👤 James Stupar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:50
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/14; A61L29/16; A01; A01N; A01N25/00; A01N25/08; A01N25/10; A01N59/00; A01N59/16; A61L29/08; A61L29/085; C; C08; C08K; C08K3/00; C08K3/01; C08K3/015; A61L2300/00; A61L2300/10; A61L2300/102; A61L2300/104; A61L2300/40; A61L2300/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
An antimicrobial composition comprising: 30-99.85% by weight of a binder; and 0.15-70% by weight of an antimicrobial metal compound, said binder having a sufficiently low dielectric constant so as to allow said antimicrobial compound to form a chain-like structure to create an initial dose of antimicrobial action upon first use by allowing antimicrobial ions on a surface of said composition to dissove, said chain-like structure providing a pathway in said binder to allow interior antimicrobial ions in said composition to come to said surface of said composition to provide subsequent doses of antimicrobial action.
Claim 2
Dependent Claim
94 words
An antimicrobial composition comprising: 30-99.85% by weight of a binder; and 0.15-70% by weight of an antimicrobial metal compound, said binder having a sufficiently low dielectric constant so as to allow said antimicrobial compound to form a chain-like structure to create an initial dose of antimicrobial action upon first use by allowing antimicrobial ions on a surface of said composition to dissove, said chain-like structure providing a pathway in said binder to allow interior antimicrobial ions in said composition to come to said surface of said composition to provide subsequent doses of antimicrobial action.
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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) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |