US4027676A
Expired / Lapsed
US
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Coated sutures
Assignee: Ethicon Inc
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Filing: 1975-01-07
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Granted: 1977-06-07
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Expires: 1995-01-07
Abstract
Abstract A coated, absorbable suture wherein a particular absorbable composition comprising a film-forming polymer, a lubricant and a hydrophobic material is provided for coating sutures, particularly multifilament synthetic absorbable sutures, in order to improve the smoothness in tie-down properties of the sutures.
Inventors
- 👤 Frank V. Mattei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:10
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/53; A; A61; A61L; A61L17/00; A61L17/06; A61L17/10; A61L17/12; A61L17/14; A61L17/145; C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/08; C09; C09D; C09D131/00; C09D131/02; C09D131/04; D06M13/00; D06M13/10; D06M13/224; D06M15/21; D06M15/285; C08L; C08L67/00; C08L67/08; C08L71/00; C08L71/02; C10; C10M; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/082; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/12; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/028; C10M2217/04; C10M2217/044; C10M2217/045; C10M2217/06; C10N; C10N2040/00; C10N2040/46; C10N2050/00; C10N2050/015; C10N2050/02; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
148 words
A finished multifilament absorbable surgical suture having improved tie down properties characterized in that the surface of the suture is coated with an absorbable composition providing in combination: a. from about 10 to 50 percent by weight of an absorbable film forming polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide, copolymers of vinyl acetate with unsaturated carboxylic acids, water soluble or dispersible cellulose derivatives, natural gums, high molecular weight crystalline ethylene oxide polymers, polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone, gelatin, collagen, polyamino acids, and conjugated unsaturated triglycerides, b. from about 20 to 60 percent by weight of an absorbable lubricant comprising a polyalkylene glycol having a molecular weight between about 5,000 and 200,000, and c. from about 10 to 40 percent by weight of an absorbable hydrophobic material selected from the group consisting of higher fatty acids and esters of higher fatty acids.
Claim 2
Dependent Claim
148 words
A finished multifilament absorbable surgical suture having improved tie down properties characterized in that the surface of the suture is coated with an absorbable composition providing in combination: a. from about 10 to 50 percent by weight of an absorbable film forming polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide, copolymers of vinyl acetate with unsaturated carboxylic acids, water soluble or dispersible cellulose derivatives, natural gums, high molecular weight crystalline ethylene oxide polymers, polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone, gelatin, collagen, polyamino acids, and conjugated unsaturated triglycerides, b. from about 20 to 60 percent by weight of an absorbable lubricant comprising a polyalkylene glycol having a molecular weight between about 5,000 and 200,000, and c. from about 10 to 40 percent by weight of an absorbable hydrophobic material selected from the group consisting of higher fatty acids and esters of higher fatty acids.
Claim 3
Dependent Claim
12 words
A suture of claim 1 wherein said suture is of braided construction.
Claim 4
Dependent Claim
27 words
A suture of claim 2 wherein said suture is composed of an absorbable polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide.
Claim 5
Dependent Claim
23 words
A multifilament suture of claim 3 wherein said suture in size 2-0 has a dry roughness value not higher than about 3 pounds.
Claim 6
Dependent Claim
14 words
A multifilament suture of claim 4 wherein said suture is a size 2-0 suture.
Claim 7
Dependent Claim
31 words
A multifilament suture of claim 5 wherein said suture has a wet roughness value not higher than about 4 pounds after being submerged in water at 25° C. for one minute.
Claim 8
Dependent Claim
31 words
A suture of claim 1 wherein said absorbable film-forming polymer is a copolymer of lactide and glycolide containing about 65 percent of dilactyl moieties and about 35 percent of diglycolyl moieties.
Claim 9
Dependent Claim
35 words
A suture of claim 1 wherein said absorbable film-forming polymer is a copolymer of vinyl acetate and crotonic acid containing about 10 percent of crotonic acid moieties and about 90 percent of vinyl acetate moieties.
Claim 10
Dependent Claim
14 words
A suture of claim 1 wherein said absorbable film-forming polymer is dehydrated castor oil.
Claim 11
Dependent Claim
25 words
A suture of claim 1 wherein said polyalkylene glycol is selected from the group consisting of homopolymers and copolymers of ethylene oxide and propylene oxide.
Claim 12
Dependent Claim
23 words
A suture of claim 1 wherein said polyalkylene glycol is a polyethylene glycol having a molecular weight between about 5,000 and about 50,000.
Claim 13
Dependent Claim
13 words
A suture of claim 1 wherein said higher fatty acid is stearic acid.
Claim 14
Dependent Claim
25 words
A suture of claim 1 wherein said esters of higher fatty acids are selected from the group consisting of sorbitan tristearate and hydrogenated castor oil.
Claim 15
Independent Claim
144 words
A method for improving the tie down characteristics of an absorbable multifilament suture which comprises coating said suture with an absorbable composition providing in combination: a. from about 10 to 50 percent by weight of an absorbable film forming polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide, copolymers of vinly acetate with unsaturated carboxylic acids, water soluble or dispersible cellulose derivatives, natural gums, high molecular weight crystalline ethyleneoxide polymers, polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone, gelatin. collagen, polyamino acids, and conjugated unsaturated triglycerides, b. from about 20 to 60 percent by weight of an absorbable lubricant comprising a polyalkylene glycol having a molecular weight between about 5,000 and 200,000 and c. from about 10 to 40 percent by weight of an absorbable hydrophobic material selected from the group consisting of higher fatty acids and esters of higher fatty acids.
Claim 16
Independent Claim
144 words
A method for improving the tie down characteristics of an absorbable multifilament suture which comprises coating said suture with an absorbable composition providing in combination: a. from about 10 to 50 percent by weight of an absorbable film forming polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide, copolymers of vinly acetate with unsaturated carboxylic acids, water soluble or dispersible cellulose derivatives, natural gums, high molecular weight crystalline ethyleneoxide polymers, polyacrylamide, polyvinyl alcohol, polyvinyl pyrrolidone, gelatin. collagen, polyamino acids, and conjugated unsaturated triglycerides, b. from about 20 to 60 percent by weight of an absorbable lubricant comprising a polyalkylene glycol having a molecular weight between about 5,000 and 200,000 and c. from about 10 to 40 percent by weight of an absorbable hydrophobic material selected from the group consisting of higher fatty acids and esters of higher fatty acids.
Claim 17
Dependent Claim
13 words
The method of claim 14 wherein said suture is of a braided construction.
Claim 18
Dependent Claim
28 words
The method of claim 14 where said suture is composed of an absorbable synthetic polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide.
Claim 19
Independent Claim
94 words
A method for improving the tie-down characteristics of a multifilament suture composed of an absorbable synthetic polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide which comprises coating said suture with an absorbable coating composition comprising (1) from about 10 to bout 50 weight percent of a copolymer of lactide and glycolide, (2) from about 20 to about 60 weight percent of a polyethylene glycol having a molecular weight between about 5,000 and about 50,000 and (3) from about 10 to about 40 weight percent of hydrogenated castor oil.
Claim 20
Independent Claim
94 words
A method for improving the tie-down characteristics of a multifilament suture composed of an absorbable synthetic polymer selected from the group consisting of homopolymers and copolymers of lactide and glycolide which comprises coating said suture with an absorbable coating composition comprising (1) from about 10 to bout 50 weight percent of a copolymer of lactide and glycolide, (2) from about 20 to about 60 weight percent of a polyethylene glycol having a molecular weight between about 5,000 and about 50,000 and (3) from about 10 to about 40 weight percent of hydrogenated castor oil.
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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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |