US4988341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilizing dressing device and method for skin puncture
Assignee: Clinical Diagnostic Systems Inc
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Filing: 1989-06-05
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Granted: 1991-01-29
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Expires: 2009-06-05
Abstract
Abstract A dressing device and method are described, for use with a needle that is injected into the skin. The dressing device comprises a cover sheet and a gel medium attached to the cover sheet, the gel medium being transparent and effective to reseal after being punctured by the needle. Most importantly, the gel medium includes a sterilizing agent. Injection of the needle into the skin occurs only after the needle penetrates the gel medium, so that the needle is disinfected or sterilized.
Inventors
- 👤 Richard L. Columbus
- 👤 Thomas R. Kissel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/023; A61M; A61M5/00; A61M5/42; A61M5/427; A61F2013/00361; A61F2013/00727; A61F2013/00748; A61F2013/00846; A61F2013/00902; A61F2013/0091
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
112 words
A sterilizing device for use with a needle to inject into or remove a liquid from a site on a live host body, said device comprising: a transparent, puncturable, resealable gel medium containing a sterilizing agent preincorporated therein, said medium being constructed to :over said site; a non-absorbent protective cover on one side of said medium having margin portions extending beyond the outside margin of said medium; means for retaining said medium to said cover; and adhesive disposed on surface portions of said extending portions of said cover, said adhesive being disposed for exposure and contact of said host body when said medium is exposed and in contact with said host body.
Claim 2
Dependent Claim
112 words
A sterilizing device for use with a needle to inject into or remove a liquid from a site on a live host body, said device comprising: a transparent, puncturable, resealable gel medium containing a sterilizing agent preincorporated therein, said medium being constructed to :over said site; a non-absorbent protective cover on one side of said medium having margin portions extending beyond the outside margin of said medium; means for retaining said medium to said cover; and adhesive disposed on surface portions of said extending portions of said cover, said adhesive being disposed for exposure and contact of said host body when said medium is exposed and in contact with said host body.
Claim 3
Dependent Claim
50 words
A device as defined in claim 1, wherein said retaining means comprise a second protective cover adhered to said one side protective cover with said gel medium sandwiched between them, said second cover being capable in a portion thereof of visual examination of said gel medium and site underneath it.
Claim 4
Dependent Claim
21 words
A device as defined in claim 1, wherein said gel medium comprises an interlaced network of agar and an acrylamide copolymer.
Claim 5
Dependent Claim
34 words
A device as defined in claim 1, wherein said sterilizing agent is an agent selected from the group consisting of an anti-bacterial agent, a fungicide, an anti-yeast agent, an antiviral agent and mixtures thereof.
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) | 1994-01-28 | 1994-07-30 | 1995-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-28 | 1998-07-30 | 1999-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-28 | 2002-07-30 | 2003-01-29 | $7700.00 | Window Closed / Lapsed |