US4185637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating composition for sutures
Assignee: Ethicon Inc
•
Filing: 1978-05-30
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Granted: 1980-01-29
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Expires: 1998-05-30
Abstract
Abstract The tie-down properties of multifilament surgical sutures are improved by coating the suture with a composition comprising a gel of a fatty acid salt in a volatile organic solvent. The gel is prepared by refluxing the fatty acid salt in the organic solvent. Sutures coated with the gel are dried to remove the solvent and deposit a residue of the fatty acid salt on the suture. Sutures coated with from 1 to 5 percent by weight of the dry fatty acid salt are characterized by a smooth knot tie-down under both wet and dry conditions.
Inventors
- 👤 Frank V. Mattei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:02
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/14; A61L17/145; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
49 words
A multifilament suture having improved tie-down properties, said suture being coated with from about 1 to 5 percent by weight of the dry residue of a composition comprising a gel of a polyvalent metal ion salt of a C 6 or higher fatty acid in a volatile organic solvent.
Claim 2
Dependent Claim
49 words
A multifilament suture having improved tie-down properties, said suture being coated with from about 1 to 5 percent by weight of the dry residue of a composition comprising a gel of a polyvalent metal ion salt of a C 6 or higher fatty acid in a volatile organic solvent.
Claim 3
Dependent Claim
20 words
A suture of claim 1 wherein the fatty acid salt is the salt of calcium, magnesium, barium, aluminum, or zinc.
Claim 4
Dependent Claim
27 words
A suture of claim 1 wherein said higher fatty acid is selected from the group consisting of C 12 to C 22 fatty acids and mixtures thereof.
Claim 5
Dependent Claim
17 words
A suture of claim 3 wherein the fatty acid salt is the salt of calcium or magnesium.
Claim 6
Dependent Claim
17 words
A suture of claim 4 wherein the fatty acid comprises a mixture of stearic and palmitic acid.
Claim 7
Dependent Claim
13 words
A suture of claim 1 wherein the fatty acid salt is calcium stearate.
Claim 8
Dependent Claim
15 words
A suture of claim 6 wherein the calcium stearate salt is substantially free of carbonates.
Claim 9
Dependent Claim
30 words
A suture of claim 1 wherein said gel contains from about 3 to 10 percent solids and is obtained by refluxing the fatty acid salt in the volatile organic solvent.
Claim 10
Dependent Claim
24 words
A suture of claim 1 wherein said volatile organic solvent is selected from the group consisting of benzene, toluene, xylene, mesitylene, 1,1,2-trichloroethane, and chloroform.
Claim 11
Dependent Claim
18 words
A suture of claim 1 wherein the suture is comprised of homopolymers or copolymers of lactide and glycolide.
Claim 12
Dependent Claim
12 words
A suture of claim 1 wherein the suture is composed of poly(p-dioxanone).
Claim 13
Dependent Claim
13 words
A suture of claim 1 wherein the multifilament suture is a braided suture.
Claim 14
Independent Claim
73 words
A method for improving the tie-down properties of a multifilament suture which comprises coating the suture with a composition comprising a gel of a polyvalent metal ion salt of a C 6 or higher fatty acid in a volatile organic solvent, and drying said coated suture to remove the organic solvent from said gel and deposit on the suture from about 1 to 5 percent by dry weight of the fatty acid salt.
Claim 15
Independent Claim
73 words
A method for improving the tie-down properties of a multifilament suture which comprises coating the suture with a composition comprising a gel of a polyvalent metal ion salt of a C 6 or higher fatty acid in a volatile organic solvent, and drying said coated suture to remove the organic solvent from said gel and deposit on the suture from about 1 to 5 percent by dry weight of the fatty acid salt.
Claim 16
Dependent Claim
16 words
A method of claim 13 wherein the gel contains from about 3 to 10 percent solids.
Claim 17
Dependent Claim
20 words
The method of claim 13 wherein the fatty acid salt is the salt of calcium, magnesium, barium, aluminum, or zinc.
Claim 18
Dependent Claim
27 words
The method of claim 13 wherein said higher fatty acid is selected from the group consisting of C 12 to C 22 fatty acids and mixtures thereof.
Claim 19
Dependent Claim
13 words
The method of claim 13 wherein the fatty acid salt is calcium stearate.
Claim 20
Dependent Claim
23 words
The method of claim 13 wherein the organic solvent is selected from the group consisting of benzene, toluene, xylene, mesitylene, 1,1,2-trichloroethane, and chloroform.
Claim 21
Dependent Claim
26 words
The method of claim 13 wherein said suture is composed of a polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide.
Claim 22
Dependent Claim
12 words
The method of claim 13 wherein said suture is composed of poly(p-dioxanone).
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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) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |