US3896813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sutures having long-lasting biocidal properties
Assignee: Sutures Inc
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Filing: 1972-04-12
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Granted: 1975-07-29
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Expires: 1992-04-12
Abstract
Abstract Sutures are provided with long-lasting biocidal properties against both gram-negative and gram-positive bacteria by incorporating substantially water-insoluble salts of an acid antibiotic and a basic antibiotic into the body of the suture. The sutures can be prepared by sequentially impregnating the sutures with aqueous solutions of the respective antibiotics or by first forming the water-soluble salt of the antibiotic and impregnating the suture with an organic solution of the waterinsoluble salt.
Inventors
- 👤 Leonard D Kurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:53
CPC Classifications
A; A61; A61L; A61L2/00; A61L17/00; A61L17/005; D; D06; D06M; D06M16/00; A61L2103/00; A61L2103/50; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/406; A61L2300/45; A61L2300/60; A61L2300/602
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A SURGICAL SUTURE HAVING LONG-LASTING BACTERICIDAL PROPERTIES COMPRISING A SUTURE STRAND HAVING INCORPORATED SUBSTANTIALLY UNIFORMLY WITHIN THE BODY THEREOF THROUGHOUT ITS LENGTH AN EFFECTIVE AMOUNT OF A SUBSTANTIALLY WATER-INSOLUBLE SALT OF A PENICILLIN AND A BASIC ANTIBIOTIC SELECTED FROM THE GROUP CONSISTING OF GENTAMICIN AND A POLYMYXIN, SAID SUBSTANTIALLY WATER-INSOLUBLE SALT BEING HELD TENACIOUSLY IN SAID SUTURE STRAND TO PROVIDE A LONG-LASTING SOURCE OF BOTH SAID ANTIBIOTICS.
Claim 2
Dependent Claim
67 words
A SURGICAL SUTURE HAVING LONG-LASTING BACTERICIDAL PROPERTIES COMPRISING A SUTURE STRAND HAVING INCORPORATED SUBSTANTIALLY UNIFORMLY WITHIN THE BODY THEREOF THROUGHOUT ITS LENGTH AN EFFECTIVE AMOUNT OF A SUBSTANTIALLY WATER-INSOLUBLE SALT OF A PENICILLIN AND A BASIC ANTIBIOTIC SELECTED FROM THE GROUP CONSISTING OF GENTAMICIN AND A POLYMYXIN, SAID SUBSTANTIALLY WATER-INSOLUBLE SALT BEING HELD TENACIOUSLY IN SAID SUTURE STRAND TO PROVIDE A LONG-LASTING SOURCE OF BOTH SAID ANTIBIOTICS.
Claim 3
Dependent Claim
12 words
The surgical suture of claim 1 wherein the basic antibiotic is gentamicin.
Claim 4
Dependent Claim
13 words
The surgical suture of claim 1 wherein the basic antibiotic is a polymyxin.
Claim 5
Dependent Claim
13 words
The surgical suture of claim 1 wherein the basic antibiotic is polymyxin B.
Claim 6
Dependent Claim
11 words
The surgical suture of claim 4 wherein the penicillin is oxacillin.
Claim 7
Dependent Claim
18 words
The surgical suture of claim 1 wherein the substantially water-insoluble salt is a salt of gentamicin and oxacillin.
Claim 8
Dependent Claim
18 words
The surgical suture of claim 1 wherein the substantially water-insoluble salt is a salt of polymyxin and oxacillin.
Claim 9
Dependent Claim
18 words
The surgical suture of claim 1 wherein the suture is of a material selected from silk and gut.
References Cited (Backward Citations)
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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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |