US4296745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical sealant composition
Assignee: VIRGOCREST Ltd (T/A FRANKLIN MEDICAL)
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Filing: 1979-11-13
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Granted: 1981-10-27
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Expires: 1999-11-13
Abstract
Abstract An adhesive surgical dressing which comprises a backing material provided on one side with a composition comprising per 100 parts, by weight, of a non-biodegradable, tacky, polymeric binding agent, from 12 to 25 parts, by weight, of an inert reinforcing filler and a coating on at least the intended skin contacting face of the dressing of a non-biodegradable, water-activated adhesive/thickner, the composition having an aqueous swell value of from 5 to 40% and a cold flow value of from 50 to 90%, is disclosed. An adhesive surgical dressing composition which comprises per 100 parts, by weight, of a non-biodegradable, tacky, polymeric binding agent, from 5 to 150 parts, by weight, of a non-biodegradable, water-activated adhesive/thickner and from 12 to 25 parts, by weight, of an inert reinforcing filler, is also disclosed. The adhesive material obviates certain disadvantages of known materials in that it adheres satisfactorily to moist surfaces, it absorbs moisture and maintains its adhesion and is physiologically acceptable.
Inventors
- 👤 Christopher D. Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
A; A61; A61L; A61L24/00; A61L24/04; A61L24/043; A61F; A61F5/00; A61F5/44; A61F5/443; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61L15/585; C; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J123/22; A61L2400/00; A61L2400/14; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2738
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
72 words
An adhesive surgical dressing which comprises a backing material provided on one side with a composition comprising per 100 parts, by weight, of a non-biodegradable, tacky, polymeric binding agent, selected from a group consisting of polyisoprene, polyurethane, silicone, and polyisobutylene, from 12 to 25 parts, by weight, of an inert reinforcing filler and a coating on at least the intended skin contacting face of the dressing of a non-biogradeable, water-activated polyacrylamide adhesive/thickner.
Claim 2
Dependent Claim
72 words
An adhesive surgical dressing which comprises a backing material provided on one side with a composition comprising per 100 parts, by weight, of a non-biodegradable, tacky, polymeric binding agent, selected from a group consisting of polyisoprene, polyurethane, silicone, and polyisobutylene, from 12 to 25 parts, by weight, of an inert reinforcing filler and a coating on at least the intended skin contacting face of the dressing of a non-biogradeable, water-activated polyacrylamide adhesive/thickner.
Claim 3
Dependent Claim
33 words
An adhesive surgical dressing as claimed in claim 1 wherein the non-biodegradable, water-activated adhesive/thickner is dispersed throughout the composition and is present in an amount of from 5 to 150 parts, by weight.
Claim 4
Dependent Claim
20 words
An adhesive surgical dressing as claimed in claim 1 or claim 2 wherein the reinforcing filler is a fume silica.
Claim 5
Dependent Claim
21 words
An adhesive surgical dressing as claimed in claim 1 or claim 2 wherein the backing material is a microporous polymer sheet.
Claim 6
Dependent Claim
52 words
An adhesive surgical dressing as claimed in claim 1 or claim 2 wherein the composition also contains up to 40 parts, by weight, of a synthetic swelling clay and up to 4 parts, by weight, of a pH adjuster to produce a pH value for the composition of from 6 to 7.
Claim 7
Dependent Claim
46 words
An adhesive surgical dressing as claimed in claim 1 or claim 2 wherein the dressing has, on the intended skin contact face, a removable cover layer and the composition also comprises a release promoting agent in an amount of from 5 to 50 parts, by weight.
Claim 8
Dependent Claim
22 words
An adhesive surgical dressing as claimed in claim 1 or claim 2 which is in the form of a stoma sealing ring.
Claim 9
Dependent Claim
56 words
An adhesive surgical dressing composition which comprises per 100 parts, by weight, of a non-biogradable, tacky, polymeric binding agent, selected from a group consisting of polyisoprene, polyurethane, silicone, and polyisobutylene, from 5 to 150 parts, by weight, of a non-biogradeable, water-activated polyacrylamide adhesive/thickner and from 12 to 25 parts, by weight, of an inert reinforcing filler.
Claim 10
Dependent Claim
56 words
An adhesive surgical dressing composition which comprises per 100 parts, by weight, of a non-biogradable, tacky, polymeric binding agent, selected from a group consisting of polyisoprene, polyurethane, silicone, and polyisobutylene, from 5 to 150 parts, by weight, of a non-biogradeable, water-activated polyacrylamide adhesive/thickner and from 12 to 25 parts, by weight, of an inert reinforcing filler.
Claim 11
Dependent Claim
47 words
An adhesive surgical dressing composition as claimed in claim 8 also containing up to 40 parts, by weight, of a synthetic swelling clay and up to 4 parts, by weight, of a pH adjuster to produce a pH value for the composition of from 6 to 7.
Claim 12
Dependent Claim
44 words
An adhesive surgical dressing composition as claimed in claim 8 or claim 9 having, on the intended skin contact face, a removable cover layer and the composition also comprises a release promoting agent in an amount of from 5 to 50 parts, by weight.
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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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |