US5314446A
Expired / Lapsed
US
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Sterilized heterogeneous braids
Assignee: Ethicon Inc
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Filing: 1992-02-19
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Granted: 1994-05-24
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Expires: 2012-02-19
Abstract
Abstract Heterogeneous braided multifilament of first and second set of yarns mechanically blended by braiding, in which first and second set of yarns are composed of different fiber-forming materials. Heterogeneous braids are useful for preparation of surgical sutures and ligatures.
Inventors
- 👤 Alastair W. Hunter
- 👤 Arthur Taylor, Jr.
- 👤 Mark Steckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:29
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06166; A61L; A61L17/00; A61L17/04; A61L17/06; A61L17/10; A61L17/105; A61L17/12; D; D04; D04C; D04C1/00; D04C1/06; D04C1/12; A61B17/12; A61B17/12009; D10; D10B; D10B2509/00; D10B2509/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
116 words
A surgical suture consisting essentially of a heterogeneous braid composed of a first and second set of continuous and discrete yarns in a sterilized, braided construction wherein at least one yarn from the first set is in direct intertwining contact with a yarn from the second set; and a) each yarn from the first set is composed of a plurality of filaments of a first fiber-forming material selected from the group consisting of PTFE, FEP, PFA, PVDF, PETFE, PP and PE; and b) each yarn from the second set is composed of a plurality of filaments of a second fiber-forming material selected from the group consisting of PET, nylon and aramid; and c) optionally a core.
Claim 2
Dependent Claim
116 words
A surgical suture consisting essentially of a heterogeneous braid composed of a first and second set of continuous and discrete yarns in a sterilized, braided construction wherein at least one yarn from the first set is in direct intertwining contact with a yarn from the second set; and a) each yarn from the first set is composed of a plurality of filaments of a first fiber-forming material selected from the group consisting of PTFE, FEP, PFA, PVDF, PETFE, PP and PE; and b) each yarn from the second set is composed of a plurality of filaments of a second fiber-forming material selected from the group consisting of PET, nylon and aramid; and c) optionally a core.
Claim 3
Dependent Claim
14 words
The surgical suture of claim 1 wherein the suture is attached to a needle.
Claim 4
Dependent Claim
20 words
The surgical suture of claim 1 wherein the first fiber-forming material exhibits a surface energy less than about 38 dynes/cm.
Claim 5
Dependent Claim
20 words
The surgical suture of claim 3 wherein the first fiber-forming material exhibits a surface energy less than about 30 dynes/cm.
Claim 6
Dependent Claim
14 words
The surgical suture of claim 1 wherein the first set of yarns is PTFE.
Claim 7
Dependent Claim
20 words
The surgical suture of claim 5 wherein the second set of yarns exhibits a yarn tenacity greater than 3.0 grams/denier.
Claim 8
Dependent Claim
20 words
The surgical suture of claim 6 wherein the second set of yarns exhibits a yarn tenacity greater than 5.0 grams/denier.
Claim 9
Dependent Claim
14 words
The surgical suture of claim 1 wherein the second set of yarns is PET.
Claim 10
Dependent Claim
30 words
The surgical suture of claim 8 wherein the volume fraction of the first set of yarns in the braided sheath and core ranges from about 20 to about 80 percent.
Claim 11
Dependent Claim
26 words
The surgical suture of claim 9 wherein the fiber fineness of the yarns of the first and second sets is less than 10 denier per filament.
Claim 12
Dependent Claim
29 words
The surgical suture of claim 1 wherein at least one yarn from the first set of yarns is plied together to a yarn from the second set of yarns.
Claim 13
Dependent Claim
14 words
The surgical suture of claim 8 wherein the suture is attached to a needle.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-05-23 | 1997-11-22 | 1998-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-23 | 2001-11-22 | 2002-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-23 | 2005-11-22 | 2006-05-24 | $7700.00 | Window Closed / Lapsed |