US3589367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical dressing
Assignee: Parke Davis and Co LLC
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Filing: 1969-07-07
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Granted: 1971-06-29
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Expires: 1989-07-07
Abstract
Abstract A surgical dressing is provided for direct contact with the wound. The dressing is well suited for placing on the healing area since like surgical gauze it is substantially free from the tendency to deposit loose fibers in the wound site. The construction of the dressing can be readily varied to accomplish selected purposes in terms of bulk, absorbency, feel, etc.
Inventors
- 👤 James W Sease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:04
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/01; A61F13/01034; A61F13/01042; A61F13/01008; A61F13/01012; A61F13/15; A61F13/53; A61F13/534; A61F13/53409; A61F2013/00361; A61F2013/00727; A61F2013/00731; A61F2013/00744; A61F13/15577; A61F2013/15821; A61F2013/53445
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
111 words
A surgical dressing adapted to be placed as a four-ply sponge directly upon a wound site comprising a laminated assembly in sequence of a gauze fabric facing layer, a wet-strength fluidtransmissible nonwoven fabric layer, and an absorbent fiber layer, the layers being generally rectilinear and coextensive except for the facing layer which in single ply is wider so that edge portions extend beyond the lateral edges of the other layers, the edge portions being infolded at the lateral edges and the free ends also being infolded, the resulting assembly being adapted to be machine folded twice in half to provide a four-ply sponge having facing surfaces substantially free of long fibers.
Claim 2
Dependent Claim
111 words
A surgical dressing adapted to be placed as a four-ply sponge directly upon a wound site comprising a laminated assembly in sequence of a gauze fabric facing layer, a wet-strength fluidtransmissible nonwoven fabric layer, and an absorbent fiber layer, the layers being generally rectilinear and coextensive except for the facing layer which in single ply is wider so that edge portions extend beyond the lateral edges of the other layers, the edge portions being infolded at the lateral edges and the free ends also being infolded, the resulting assembly being adapted to be machine folded twice in half to provide a four-ply sponge having facing surfaces substantially free of long fibers.
Claim 3
Dependent Claim
18 words
A surgical dressing according to claim 1 including a wadding layer coextensive with and supporting the fiber layer.
Claim 4
Dependent Claim
18 words
A four-ply surgical dressing according to claim 1 wherein the gauze fabric facing layer is 20/12 cotton gauze.
Claim 5
Dependent Claim
26 words
A surgical dressing according to claim 1 wherein the nonwoven fabric layer is a wet-strength web at least equivalent to a 15 gram rayon bound-fiber web.
Claim 6
Dependent Claim
27 words
A surgical dressing according to claim 3 wherein the nonwoven fabric layer is an absorbent wet-strength web at least equivalent to a 15 gram rayon bound-fiber web.
Claim 7
Dependent Claim
25 words
A surgical dressing according to claim 1 wherein the bulk of the fiber layer is at least about 16 grams per square yard of gauze.
Claim 8
Dependent Claim
19 words
A surgical dressing according to claim 2 wherein the wadding layer is cellulose rated at 14 pounds per ream.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |