US4477256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical sponge
Assignee: Individual
•
Filing: 1984-03-02
•
Granted: 1984-10-16
•
Expires: 2004-03-02
Abstract
Abstract A surgical sponge principally for blunt dissection formed of an elongated strip of absorbent material such as woven cotton or the like rolled to form a cylindrical structure. At least the outer layer of the roll is adhesively secured to the roll to prevent unwinding and a radiation opaque material is contained within the sponge and is preferably intermixed with the adhesive.
Inventors
- 👤 Win Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:41
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; A61F13/206; A61F13/44; A61B; A61B17/00; A61B17/32; A61B2017/320044; A61B90/00; A61B90/39
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
A surgical sponge of the blunt dissection type comprising an elongated strip of absorbent material rolled to form an essentially cylindrical roll with successive overlying layers and having an outer layer including the terminal end portion with the length of the structure being approximately equal to the width of the strip, a continuous coating of adhesive material permanently securing at least said outer layer throughout its width to said roll and a radiation opaque material within said roll.
Claim 2
Dependent Claim
78 words
A surgical sponge of the blunt dissection type comprising an elongated strip of absorbent material rolled to form an essentially cylindrical roll with successive overlying layers and having an outer layer including the terminal end portion with the length of the structure being approximately equal to the width of the strip, a continuous coating of adhesive material permanently securing at least said outer layer throughout its width to said roll and a radiation opaque material within said roll.
Claim 3
Dependent Claim
20 words
A surgical sponge of the blunt dissection type according to claim 1 wherein said adhesive is a self-setting viscous material.
Claim 4
Dependent Claim
19 words
A surgical sponge of the blunt dissection type according to claim 1 wherein said adhesive is a thermo-plastic material.
Claim 5
Dependent Claim
22 words
A surgical sponge of the blunt dissection type according to claim 1 wherein said adhesive includes a radiation opaque material carried thereby.
Claim 6
Dependent Claim
49 words
A surgical sponge of the blunt dissection type according to claim 1 wherein said strip of adsorbent material is folded upon itself to form overlying laminations prior to being rolled to form an essentially cylindrical roll and an adhesive between at least the end portions of said overlying laminations.
Claim 7
Dependent Claim
27 words
A surgical sponge of the blunt dissection type according to claim 6 wherein the adjoining ends of said strip are disposed at the center of said roll.
Claim 8
Dependent Claim
25 words
A surgical sponge of the blunt dissection type according to claim 6 wherein the folded end portion is disposed at the center of said roll.
Claim 9
Dependent Claim
39 words
A surgical sponge of the blunt dissection type according to claim 1 wherein said strip includes a layer of adhesive extending throughout substantially the entire length and width thereof and a radiation opaque material disposed within said cylindrical structure.
Claim 10
Dependent Claim
86 words
A surgical sponge of the blunt dissection type comprising an elongated strip of absorbent material folded lengthwise upon itself to provide overlying laminations and then rolled to form an essentially cylindrical roll having successive overlying layers and including an outer terminal end portion with the length of the structure being approximately equal to the width of the strip, and a continuous coating of adhesive permanently securing each successive layer throughout its length and width to the underlying layer and a radiation opaque material within said roll.
Claim 11
Dependent Claim
86 words
A surgical sponge of the blunt dissection type comprising an elongated strip of absorbent material folded lengthwise upon itself to provide overlying laminations and then rolled to form an essentially cylindrical roll having successive overlying layers and including an outer terminal end portion with the length of the structure being approximately equal to the width of the strip, and a continuous coating of adhesive permanently securing each successive layer throughout its length and width to the underlying layer and a radiation opaque material within said roll.
Claim 12
Dependent Claim
44 words
A surgical sponge of the blunt dissection type according to claim 9 wherein said folded end portion is disposed at the center of said roll and an adhesive is disposed between at least the overlying end portions of the laminations of said folded strip.
Claim 13
Dependent Claim
44 words
A surgical sponge of the blunt dissection type according to claim 9 wherein the free end portions of the folded strip are disposed at the center of the roll and an adhesive is disposed at least between the laminations adjoining the folded end portion.
References Cited (Backward Citations)
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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) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |