US5330452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Topical medicating device
Assignee: Individual
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Filing: 1993-06-01
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Granted: 1994-07-19
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Expires: 2013-06-01
Abstract
Abstract A topical medicating device includes a transparent viscoelastic gel pad having one or more pharmacologically-active substances incorporated therein; a sheet of transparent, impermeable, and elastic material providing an occlusive layer adjacent to the upper surface of the viscoelastic gel pad; an elastic retaining ring perimetrically surrounding the viscoelastic gel pad to prevent migration due to external pressure; and a porous meshwork attached to the elastic retaining ring so as to additionally anchor the gel pad from migration. The porous meshwork member may be located at the surface of the viscoelastic gel pad opposite the aforementioned occlusive covering sheet, or may run through the viscoelastic gel pad in its anchoring function. The viscoelastic gel pad, occlusive covering sheet, and retaining ring with porous meshwork may be affixed to a target skin surface of the patient by an adhesive tape bandage with a visual access opening. The adhesive bandage may be formed to integrally include the impermeable occlusive layer adjacent to the surface of the viscoelastic gel pad. As a topical anesthetic device, the liquid fraction of the viscoelastic gel pad may be a solution of alcohol and water, preferably, but not limited to, 70% ethyl alcohol, wherein is dissolved 10% to 40%, by weight, of Lidocaine, U.S.P./N.F.
Inventors
- 👤 Gerald P. Zook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:20
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/70; A61K9/7023; A61K9/703; A61F; A61F13/00; A61F13/02; A61F13/0203; A61F13/0213; A61F13/0226; A61F13/0246; A61F13/025; A61K9/7084; A61F2013/00361; A61F2013/00544; A61F2013/00604; A61F2013/00608; A61F2013/00727; A61F2013/00748; A61F2013/00795; A61F2013/00825; A61F2013/00846; A61F2013/00851; A61F2013/00855; A61F2013/00885; A61F2013/00893; A61F2013/00902; A61F2013/00906; A61F2013/0091
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
147 words
A topical medicating device, comprising: a. a viscoelastic gel pad, having an upper surface, a lower surface, and a lateral perimeter; b. a flexible retaining ring formed to fit closely about the lateral perimeter of said viscoelastic gel pad; said retaining ring having an upper surface and a lower surface, and bounding a central area wherein said viscoelastic gel pad is located; c. an impermeable sheet member, attached about the upper surface of said retaining ring, which provides an occlusive layer adjacent to said upper surface of said viscoelastic gel pad; d. a thin, porous meshwork affixed to said retaining ring and extending across said central area of said retaining ring to support said viscoelastic gel pad within said central area; and e. means for attaching said viscoelastic gel pad and said flexible retaining ring with affixed porous meshwork to a target skin surface upon a patient.
Claim 2
Dependent Claim
147 words
A topical medicating device, comprising: a. a viscoelastic gel pad, having an upper surface, a lower surface, and a lateral perimeter; b. a flexible retaining ring formed to fit closely about the lateral perimeter of said viscoelastic gel pad; said retaining ring having an upper surface and a lower surface, and bounding a central area wherein said viscoelastic gel pad is located; c. an impermeable sheet member, attached about the upper surface of said retaining ring, which provides an occlusive layer adjacent to said upper surface of said viscoelastic gel pad; d. a thin, porous meshwork affixed to said retaining ring and extending across said central area of said retaining ring to support said viscoelastic gel pad within said central area; and e. means for attaching said viscoelastic gel pad and said flexible retaining ring with affixed porous meshwork to a target skin surface upon a patient.
Claim 3
Dependent Claim
26 words
The topical medicating device, as recited in claim 1, wherein said thin porous meshwork is positioned adjacent to said lower surface of said viscoelastic gel pad.
Claim 4
Dependent Claim
24 words
The topical medicating device, as recited in claim 1, wherein said thin, porous meshwork is positioned within and extends through said viscoelastic gel pad.
Claim 5
Dependent Claim
25 words
The topical medicating device, as recited in claim 1, wherein said means for attaching said topical medicating device to a patient includes an adhesive bandage.
Claim 6
Dependent Claim
21 words
The topical medicating device, as recited in claim 4, wherein said adhesive bandage includes a window adjacent said impermeable sheet member.
Claim 7
Dependent Claim
22 words
The topical medicating device, as recited in claim 4, wherein said adhesive bandage is formed to integrally include said impermeable sheet member.
Claim 8
Dependent Claim
21 words
The topical medicating device, as recited in claim 1, wherein said viscoelastic gel pad and impermeable, elastic sheet member are transparent.
Claim 9
Dependent Claim
23 words
The topical medicating device, as recited in claim 1, wherein said viscoelastic gel pad is perfused with one or more pharmacologically active agents.
Claim 10
Dependent Claim
156 words
A topical anesthetic device, comprising: a. a viscoelastic gel pad, having an upper surface, a lower surface, and a lateral perimeter, said viscoelastic gel pad being perfused with an anesthetic; b. a flexible retaining ring formed to fit closely about the lateral perimeter of said viscoelastic gel pad; said retaining ring having an upper surface and a lower surface, and bounding a central area wherein said viscoelastic gel pad is located; c. an impermeable sheet member, attached about the upper surface of said retaining ring, which provides an occlusive layer adjacent to said upper surface of said viscoelastic gel pad; d. a thin, porous meshwork affixed to said retaining ring and extending across said central area of said retaining ring to support said viscoelastic gel pad within said central area; and e. means for attaching said viscoelastic gel pad and said flexible retaining ring with affixed porous meshwork to a target skin surface upon a patient.
Claim 11
Dependent Claim
156 words
A topical anesthetic device, comprising: a. a viscoelastic gel pad, having an upper surface, a lower surface, and a lateral perimeter, said viscoelastic gel pad being perfused with an anesthetic; b. a flexible retaining ring formed to fit closely about the lateral perimeter of said viscoelastic gel pad; said retaining ring having an upper surface and a lower surface, and bounding a central area wherein said viscoelastic gel pad is located; c. an impermeable sheet member, attached about the upper surface of said retaining ring, which provides an occlusive layer adjacent to said upper surface of said viscoelastic gel pad; d. a thin, porous meshwork affixed to said retaining ring and extending across said central area of said retaining ring to support said viscoelastic gel pad within said central area; and e. means for attaching said viscoelastic gel pad and said flexible retaining ring with affixed porous meshwork to a target skin surface upon a patient.
Claim 12
Dependent Claim
26 words
The topical anesthetic device, as recited in claim 9, wherein said thin porous meshwork is positioned adjacent to said lower surface of said viscoelastic gel pad.
Claim 13
Dependent Claim
24 words
The topical anesthetic device, as recited in claim 9, wherein said thin, porous meshwork is positioned within and extends through said viscoelastic gel pad.
Claim 14
Dependent Claim
25 words
The topical anesthetic device, as recited in claim 9, wherein said means for attaching said topical medicating device to a patient includes an adhesive bandage.
Claim 15
Dependent Claim
22 words
The topical anesthetic device, as recited in claim 12, wherein said adhesive bandage includes a window adjacent said impermeable elastic sheet member.
Claim 16
Dependent Claim
22 words
The topical anesthetic device, as recited in claim 12, wherein said adhesive bandage is formed to integrally include said impermeable sheet member.
Claim 17
Dependent Claim
21 words
The topical anesthetic device, as recited in claim 9, wherein said viscoelastic gel pad and said impermeable sheet member are transparent.
Claim 18
Dependent Claim
35 words
The topical anesthetic device, as recited in claim 9, said viscoelastic gel pad having a liquid fraction, said liquid fraction is a solution of alcohol and water in which the anesthetic lidocaine, U.S.P./N.F. is dissolved.
Claim 19
Dependent Claim
25 words
The topical anesthetic device, as recited in claim 16, wherein said liquid fraction of said viscoelastic gel pad is approximately 70% ethyl alcohol, by weight.
Claim 20
Dependent Claim
31 words
The topical anesthetic device, as recited in claim 16, wherein said liquid fraction of said viscoelastic gel includes between 10 percent and 40 percent, by weight, of lidocaine, U.S.P./N.F. dissolved therein.
Claim 21
Dependent Claim
41 words
The topical medicating device, as recited in claim 8, wherein said pharmacologically active agents are antifungal agents, antibiotic agents, antiseptic agents, anti-inflammatories, local anesthetics, penetration enhancers, keratolytic agents, enzymes, hormones, vesicants, caustics, plant and animal venom denaturants, or substance P depleters.
References Cited (Backward Citations)
US3419006A
Cited
US3814095A
Cited
US4158359A
Cited
US4379454A
Cited
US4631227A
Cited
US4909244A
Cited
US4909244B1
Cited
US4788971A
Cited
US4991574A
Cited
US4842931A
Cited
US5167649A
Cited
US5181914A
Cited
US4988341A
Cited
US5015228A
Cited
US5098421A
Cited
US5106629A
Cited
US5204110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-18 | 1998-01-17 | 1998-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-18 | 2002-01-17 | 2002-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-18 | 2006-01-17 | 2006-07-19 | $7700.00 | Window Closed / Lapsed |