Patent US5383903A successfully refreshed from Google Patents.
US5383903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimethylsiloxane-alkylene oxide copolymer coatings for filaments
Assignee: United States Surgical Corp
•
Filing: 1992-08-20
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Granted: 1995-01-24
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Expires: 2012-08-20
Abstract
Abstract Filaments or sutures are coated with a dimethylsiloxane-alkylene oxide copolymer to improve the handling characteristics of the filament or suture.
Inventors
- 👤 Nagabhushanam Totakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:59
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/10; A; A61; A61L; A61L17/00; A61L17/14; A61L17/145; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/647
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
22 words
A surgical suture comprising: a filament of a synthetic material; a coating on said filament, said coating comprising a dimethylsiloxane-alkylene oxide copolymer.
Claim 2
Dependent Claim
22 words
A surgical suture comprising: a filament of a synthetic material; a coating on said filament, said coating comprising a dimethylsiloxane-alkylene oxide copolymer.
Claim 3
Dependent Claim
26 words
A suture as in claim 1 wherein said copolymer comprises a block containing dimethylsiloxane and a block containing polyethylene oxide, polypropylene oxide or a combination thereof.
Claim 4
Dependent Claim
27 words
A suture as in claim 1 wherein said synthetic material is selected from the group consisting of propylene, nylon, polyamide, polyesters, segmented polyether-ester block copolymers and polyurethanes.
Claim 5
Dependent Claim
13 words
A suture as in claim 1 wherein said synthetic material is polyethylene terephthalate.
Claim 6
Dependent Claim
14 words
A suture as in claim 1 wherein the suture comprises a plurality of filaments.
Claim 7
Dependent Claim
11 words
A suture as in claim 1 wherein said filaments are braided.
Claim 8
Dependent Claim
16 words
A suture as in claim 1 wherein said sutures are braided to form a spiroid braid.
Claim 9
Dependent Claim
55 words
A suture as in claim 1 wherein said coating comprises a copolymer of the following formula: ##STR2## wherein R represents a divalent hydrocarbon group such as an alkyl or alkylene group and R' represents an alkylene oxide group or combination of different alkylene oxide groups and m, n and x represent number of repeating units.
Claim 10
Dependent Claim
24 words
A suture as in claim 8 wherein said R' group is selected from the group consisting of ethylene oxide, propylene oxide and combinations thereof.
Claim 11
Independent Claim
37 words
A method of closing a wound in tissue comprising: providing a suture comprising one or more filaments having thereon a coating, said coating comprising a dimethylsiloxane-polyalkylene oxide copolymer; and approximating and securing the tissue with said suture.
Claim 12
Independent Claim
37 words
A method of closing a wound in tissue comprising: providing a suture comprising one or more filaments having thereon a coating, said coating comprising a dimethylsiloxane-polyalkylene oxide copolymer; and approximating and securing the tissue with said suture.
Claim 13
Dependent Claim
26 words
A method as in claim 10 wherein said copolymer comprises a block containing dimethylsiloxane and a block containing polyethylene oxide, polypropylene oxide or a combination thereof.
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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) | 1998-01-23 | 1998-07-25 | 1999-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-23 | 2002-07-25 | 2003-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-23 | 2006-07-25 | 2007-01-24 | $7700.00 | Window Closed / Lapsed |