US5383903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimethylsiloxane-alkylene oxide copolymer coatings for filaments
Assignee: United States Surgical Corp
•
Filing: 1992-08-20
•
Granted: 1995-01-24
•
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 16:06
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.
References Cited (Backward Citations)
CA677420A
Cited
US3187752A
Cited
US3541127A
Cited
US3418354A
Cited
US3280160A
Cited
DE1815899A1
Cited
US3629310A
Cited
DE2063099A1
Cited
US3755399A
Cited
US3839743A
Cited
US3837891A
Cited
US4043344A
Cited
US4217228A
Cited
US4184004A
Cited
US4207071A
Cited
US4283519A
Cited
US4359545A
Cited
US4624676A
Cited
SU1164339A1
Cited
JPS6031761A
Cited
US4578116A
Cited
US4617340A
Cited
US4590224A
Cited
US4699967A
Cited
US4774937A
Cited
US4649920A
Cited
US4784665A
Cited
JPS6340560A
Cited
US4711241A
Cited
EP0258749A2
Cited
US4738950A
Cited
US5123912A
Cited
WO1989003851A1
Cited
US4983180A
Cited
EP0331774A1
Cited
US4937277A
Cited
US5102707A
Cited
US5194473A
Cited
US5244967A
Cited
US5147383A
Cited
US5294649A
Cited
US5102420A
Cited
EP0486305A1
Cited
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 |