US5358492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven surgical drain and method of making
Assignee: Individual
•
Filing: 1992-09-30
•
Granted: 1994-10-25
•
Expires: 2012-09-30
Abstract
Abstract The present invention relates to a surgical drain fabric and surgical drain device and surgical sponge for providing a channel of exit or discharge from a wound or wound cavity and, more specifically, a woven surgical drain fabric, woven surgical drains, and woven surgical sponges having finished longitudinal edges useful for drawing wound drainage out of a patient's body. Preferably, the surgical drain fabric, surgical drains, and surgical sponges are woven with conductive yarns and nonconductive yarns so as to provide enhanced drainage characteristics. The fabric, drains, and sponges prepared in accordance with the invention minimize the danger of sluffing and linting and other disadvantages associated with previous surgical drain and sponge materials. A non-stick coating is applied to the external surface of the drain to reduce tissue adhesion to the drain.
Inventors
- 👤 Miriam H. Feibus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:52
CPC Classifications
A; A61; A61M; A61M27/00; A61F; A61F13/00; A61F13/15; A61F13/36
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
136 words
A woven surgical drain comprising: a first plurality of yarns and a second plurality of yarns, the yarns of said first plurality of yarns being substantially parallel to each other and extending in a first direction, the yarns of said second plurality of yarns being substantially parallel to each other and extending in a second direction substantially perpendicular to said first direction and woven with said first plurality of yarns to form an elongate woven fabric defining a tube-like channel having an external surface defining a longitudinal length and wherein said first plurality of yarns and said second plurality of yarns include conductive and nonconductive yarns and said conductive yarns make electrical contact with one another so as to form an electrically conductive matrix, and a non-stick coating applied to the external surface of said drain.
Claim 2
Dependent Claim
136 words
A woven surgical drain comprising: a first plurality of yarns and a second plurality of yarns, the yarns of said first plurality of yarns being substantially parallel to each other and extending in a first direction, the yarns of said second plurality of yarns being substantially parallel to each other and extending in a second direction substantially perpendicular to said first direction and woven with said first plurality of yarns to form an elongate woven fabric defining a tube-like channel having an external surface defining a longitudinal length and wherein said first plurality of yarns and said second plurality of yarns include conductive and nonconductive yarns and said conductive yarns make electrical contact with one another so as to form an electrically conductive matrix, and a non-stick coating applied to the external surface of said drain.
Claim 3
Dependent Claim
13 words
The drain of claim 1 wherein the tube-like channel is in hollow-tube form.
Claim 4
Dependent Claim
13 words
The drain of claim 1 wherein the tube-like channel is in hollow-tracktube form.
Claim 5
Dependent Claim
13 words
The drain of claim 1 wherein the tube-like channel is in hollow-flat-tube form.
Claim 6
Dependent Claim
12 words
The drain of claim 1 wherein said nonconductive yarns are synthetic yarns.
Claim 7
Dependent Claim
13 words
The drain of claim 5 wherein said synthetic yarns are 1-150-50 polyester yarns.
Claim 8
Dependent Claim
13 words
The drain of claim 5 wherein the synthetic yarns are 1-150-272 polyester yarns.
Claim 9
Dependent Claim
18 words
The drain of claim 1 wherein said conductive yarns consist of two or more conductive yarns plied together.
Claim 10
Dependent Claim
20 words
The drain of claim 1 wherein said conductive yarns consist of a conductive yarn plied together with a nonconductive yarn.
Claim 11
Dependent Claim
35 words
The drain of claim 1 wherein the conductive yarns are chosen from the group consisting of carbon suffused nylon; filamentary polymer substrates having finely divided electrically-conductive particles embossed on the yarn surface; and graphite yarns.
Claim 12
Dependent Claim
24 words
The drain of claim 1 wherein said conductive yarns are selected from the group consisting of carbon suffused nylon and tri-lobal carbon core polyester.
Claim 13
Dependent Claim
19 words
The drain of claim 1 wherein said conductive yarns consist of carbon suffused nylon and tri-lobal carbon core polyester.
Claim 14
Dependent Claim
20 words
The drain of claim 12 wherein the ratio of carbon suffused nylon to tri-lobal carbon core polyester is about 1:1.
Claim 15
Dependent Claim
17 words
The drain of claim 1 wherein the ratio of conductive yarns to nonconductive yarns is about 1:1.
Claim 16
Dependent Claim
39 words
The drain of claim 1 further comprising thermal sealing yarns woven about the external surface of said drain so as to encase said drain, said thermal sealing yarns having a lower melting point than said conductive and nonconductive yarns.
Claim 17
Dependent Claim
16 words
The drain of claim 1 further comprising a lock-stitch on the longitudinal length of said drain.
Claim 18
Dependent Claim
16 words
A surgical drain comprising a biocompatible plastic tube having disposed therein the drain of claim 1.
Claim 19
Dependent Claim
20 words
The drain of claim 1 wherein said coating is a woven sleeve applied to the external surface of said drain.
Claim 20
Dependent Claim
20 words
The drain of claim 1 wherein said coating is a braided sleeve applied to the external surface of said drain.
Claim 21
Dependent Claim
20 words
The drain of claim 1 wherein said coating is a knitted sleeve applied to the external surface of said drain.
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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) | 1997-10-24 | 1998-04-25 | 1998-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-24 | 2002-04-25 | 2002-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-24 | 2006-04-25 | 2006-10-25 | $7700.00 | Window Closed / Lapsed |