CA1248333A - Surgical sponge - Google Patents
Surgical spongeInfo
- Publication number
- CA1248333A CA1248333A CA000448446A CA448446A CA1248333A CA 1248333 A CA1248333 A CA 1248333A CA 000448446 A CA000448446 A CA 000448446A CA 448446 A CA448446 A CA 448446A CA 1248333 A CA1248333 A CA 1248333A
- Authority
- CA
- Canada
- Prior art keywords
- yarns
- sheet
- sponge
- layers
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Materials For Medical Uses (AREA)
Abstract
SURGICAL SPONGE
ABSTRACT OF THE DISCLOSURE
A surgical sponge comprising, a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns. The sheet has one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet, with a substantial number of the yarns in one layer generally parallel to the tie-in yarns being located intermediate the corresponding yarns in another layer of the sheet to define a staggered configuration of the sheet yarns, with the tie-in yarns limiting freedom of movement of the staggered woven yarns to retain them in place, and with the sheet being folded into a multiple ply configuration.
ABSTRACT OF THE DISCLOSURE
A surgical sponge comprising, a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns. The sheet has one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet, with a substantial number of the yarns in one layer generally parallel to the tie-in yarns being located intermediate the corresponding yarns in another layer of the sheet to define a staggered configuration of the sheet yarns, with the tie-in yarns limiting freedom of movement of the staggered woven yarns to retain them in place, and with the sheet being folded into a multiple ply configuration.
Description
BACKGROUND OF THE INVENTION
The present invention relates to medical devices, and more particularly to surgical sponges and wound dressings.
This invention is concerned with wound dressings and surgical sponges, such as ABD packs, or abdominal packs. Surgi-cal sponges and wound dressings have evolved over many years of surgical practice. Presently used sponges and dressings are an attempt to retain both the advantages of thin, soft and flexible single layers and the absorptive cushioning and insulating prop-erties of thicker padlike structures. As a result, the spongesand dressings have traditionally been formed of multiple layers of thin, soft, low-count gauzelike material which are unified along fairly widely separated lines usually extending longitu-dinally or txansversely but in some instances in both directions.
Unification has been accomplished either by lines of machine stitching whether the pack is formed of separated layers or, as is more common, by folding a single width of fabric, or by inter-weaving yarns in various layers of the multi-ply fabric.
Although such sponges and dressings have been found useful in the past, it is desirable to improve the 1uid trans-fer characteristics o the sponges and dressings, and minimize snagging of the sponges and dressings. Also, it is desirable to make the sponges and dressings both absorbent and nonadherent to the wound. As used hereinafter,~the term "surgical sponges"
will include wound dresslngs.
;
~ ~ , ~ .
,~ . . .
33~3 A principal feature of the present invention is the provision of an improved surgical sponge of simplified construction.
A surgical sponge according to one aspect of the present invention comprises, a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns. The sheet has one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet, with a substantial number of the yarns in one layer generally parallel to the tie-in yarns being located intermediate the corresponding yarns in another layer of the sheet to define a staggered configuration of the sheet yarns, and with the sheet being folded into a multiple ply configuration.
It has been found that the tie-in yarns limit freedom of movement of the staggered woven yarns to retain them in place.
It has also been found that the staggered yarns give the sponge an appearance of a high count gauze material.
In addition, the staggered yarns improve the fluid transfer characteristics of the sponge and facilitates absorbing body fluids.
Another feature of our surgical sponge is that the tie-in yarns mînimize the snagging of the sheet.
A further feature of our surgical sponge is that it improves wicking into an inner layer due to the tie-in yarns which are part of both layers~
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Yet another feature of our sponge is that an outer layer of the sponge may be constructed from a hydrophobic material and an inner layer can be constructed from a hydrophilic material, such that the sponge is both absorbent and nonadherent to a wound.
Still another feature of our sponge is that different layers may have different sized yarns in order to texturize the sheet and provide different abrasion and conformability characteristics in the layers.
A surgical sponge according to a further aspect of the present invention comprises a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns, with at least one layer in the sheet comprising substantially hydrophobic yarns, with at least another layer of the sheet comprising substantially hydrophilic yarns, with said sheet being folded into a multiple ply configuration, and with the layer of hydrophobic yarns facing outwardly from the folded sheet.
A surgical sponge according to yet another aspect of the present invention comprises a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns, with a substantial number of the yarns in one layer of the sheet being of a different size from a substantial number of yarns in another layer of the sheet, and with said sheet being folded into a multiple ply configuration.
1~ , - ' ~
~ ` " .
~LZ48333 Further fea-tures will become more fully apparent in the following description of the embodiments of this invention and from the appended claims.
DESCRIPTIo~ OF THE DRAWINGS
In the drawings:
Fig. 1 is a perspective view of a surgical sponge of tha present invention;
Fig. 2 is a plan view of a sheet in -the sponge of Fig. l;
Fig. 3 is a fragmentary sectional view taken substantially as indicated along the line 3-3 of Fig. 2; and Fig. 4 is a fragmentary plan view taken on an enlarged scale of generally parallel warp yarns of the sheet of Fig. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to Figs. 1-3, there is shown a surgical sponge generally designated 10 comprising a sheet 12 of absorbent material being folded into a multiple ply con~iguration, as shown in Fig. 1. With reference to Figs. 1-3, the sheet 12 has a pair of opposed side edges 14a and 14b, and a pair of opposed end edges 16a and 16b connecting the side edges 14a and b. The :' . . , ~ ~, ` :
~l29~l~333 sheet 12 has a first layer 18 of open mesh gauze fabric having a plurality of generally parallel woven spaced warp yarns 22 extending between the end edges 16a and b, and a plurality of generally parallel woven spaced filling yarns 2~ e~tending between the side edges 14a and b. The sheet 12 has a second layer 20 of an open mesh gauze fabric having a plurality of gen-erally parallel woven spaced warp yarns 26 extending between the end edges 16a and b, and a plurality of generally parallel woven spaced filling yarns 28 extending between the side edges 14a and b.
The sheet 12 has a plurality of spaced generally par-allel tie-in yarns 30 which are interwoven between the layers 18 and 20 in the warp direction of the sheet 12. Of course, in an alternative form, the sheet 12 could have tie-in filling yarns which are interwoven between the layers 18 and 20 of the sheet 12. With reference to Fig. 4, a substantial number of the warp yarns 22 in the layer 18 which are generally parallel to the tie-in yarns 30 are located intermediate the corresponding warp yarns 26 of the layer 20 of the sheet 12 to define a staggered configuration of the warp yarns 22 and 26. The tie-in yarns 30 limit freedom of movement of the staggered woven yarns 22 and 26 in order to retain them in place. Of course, the filling yarns 24 and 28 also may be staggered in the sheet 12. In any event, the staggered yarns give the sheet 12 an appearance of high count gauze, and improve the fluid transfer characteristics in the sponge 10, while the tie-in yarns 30 minimize snagging of the sheet 12.
With reference to Figs. 1-3, in an alternative embodi ment of the invention, the layer 18 may be woven ~rom hydropho-bic yarns, such as polyester, and the layer 20 may be wo~en from .~ ~
,:
~2~3333 hydrophilic yarns, such as cotton. When the sheet 12 is folded into the multiple ply configuration, the hydrophobic layer 18 faces outwardly from the folded sheet in order to define a non-adherent surface of the sponge 10 for contacting a wound on a patient, while the inner hydrophilic layer 20 provides absorb-ency for the sponge.
I~ith reference to Figs. 1-3, in yet another embodiment of the invention, the first layer 18 may be woven from yarns of a different size from the yarns in the second layer 20. In this emboaiment, the different sized yarns texturize the fabric, and provide different abrasion characteristics in the layers l~ and 20.
The foregoing detailed description is given for clear-ness of understanding only, and no unnecessary limitations lS should be understood therefrom, as modifications will be obvious to those skilled in the art.
B
,b
The present invention relates to medical devices, and more particularly to surgical sponges and wound dressings.
This invention is concerned with wound dressings and surgical sponges, such as ABD packs, or abdominal packs. Surgi-cal sponges and wound dressings have evolved over many years of surgical practice. Presently used sponges and dressings are an attempt to retain both the advantages of thin, soft and flexible single layers and the absorptive cushioning and insulating prop-erties of thicker padlike structures. As a result, the spongesand dressings have traditionally been formed of multiple layers of thin, soft, low-count gauzelike material which are unified along fairly widely separated lines usually extending longitu-dinally or txansversely but in some instances in both directions.
Unification has been accomplished either by lines of machine stitching whether the pack is formed of separated layers or, as is more common, by folding a single width of fabric, or by inter-weaving yarns in various layers of the multi-ply fabric.
Although such sponges and dressings have been found useful in the past, it is desirable to improve the 1uid trans-fer characteristics o the sponges and dressings, and minimize snagging of the sponges and dressings. Also, it is desirable to make the sponges and dressings both absorbent and nonadherent to the wound. As used hereinafter,~the term "surgical sponges"
will include wound dresslngs.
;
~ ~ , ~ .
,~ . . .
33~3 A principal feature of the present invention is the provision of an improved surgical sponge of simplified construction.
A surgical sponge according to one aspect of the present invention comprises, a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns. The sheet has one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet, with a substantial number of the yarns in one layer generally parallel to the tie-in yarns being located intermediate the corresponding yarns in another layer of the sheet to define a staggered configuration of the sheet yarns, and with the sheet being folded into a multiple ply configuration.
It has been found that the tie-in yarns limit freedom of movement of the staggered woven yarns to retain them in place.
It has also been found that the staggered yarns give the sponge an appearance of a high count gauze material.
In addition, the staggered yarns improve the fluid transfer characteristics of the sponge and facilitates absorbing body fluids.
Another feature of our surgical sponge is that the tie-in yarns mînimize the snagging of the sheet.
A further feature of our surgical sponge is that it improves wicking into an inner layer due to the tie-in yarns which are part of both layers~
B
~Z~333~
Yet another feature of our sponge is that an outer layer of the sponge may be constructed from a hydrophobic material and an inner layer can be constructed from a hydrophilic material, such that the sponge is both absorbent and nonadherent to a wound.
Still another feature of our sponge is that different layers may have different sized yarns in order to texturize the sheet and provide different abrasion and conformability characteristics in the layers.
A surgical sponge according to a further aspect of the present invention comprises a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns, with at least one layer in the sheet comprising substantially hydrophobic yarns, with at least another layer of the sheet comprising substantially hydrophilic yarns, with said sheet being folded into a multiple ply configuration, and with the layer of hydrophobic yarns facing outwardly from the folded sheet.
A surgical sponge according to yet another aspect of the present invention comprises a sheet of absorbent material comprising a plurality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns, with a substantial number of the yarns in one layer of the sheet being of a different size from a substantial number of yarns in another layer of the sheet, and with said sheet being folded into a multiple ply configuration.
1~ , - ' ~
~ ` " .
~LZ48333 Further fea-tures will become more fully apparent in the following description of the embodiments of this invention and from the appended claims.
DESCRIPTIo~ OF THE DRAWINGS
In the drawings:
Fig. 1 is a perspective view of a surgical sponge of tha present invention;
Fig. 2 is a plan view of a sheet in -the sponge of Fig. l;
Fig. 3 is a fragmentary sectional view taken substantially as indicated along the line 3-3 of Fig. 2; and Fig. 4 is a fragmentary plan view taken on an enlarged scale of generally parallel warp yarns of the sheet of Fig. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to Figs. 1-3, there is shown a surgical sponge generally designated 10 comprising a sheet 12 of absorbent material being folded into a multiple ply con~iguration, as shown in Fig. 1. With reference to Figs. 1-3, the sheet 12 has a pair of opposed side edges 14a and 14b, and a pair of opposed end edges 16a and 16b connecting the side edges 14a and b. The :' . . , ~ ~, ` :
~l29~l~333 sheet 12 has a first layer 18 of open mesh gauze fabric having a plurality of generally parallel woven spaced warp yarns 22 extending between the end edges 16a and b, and a plurality of generally parallel woven spaced filling yarns 2~ e~tending between the side edges 14a and b. The sheet 12 has a second layer 20 of an open mesh gauze fabric having a plurality of gen-erally parallel woven spaced warp yarns 26 extending between the end edges 16a and b, and a plurality of generally parallel woven spaced filling yarns 28 extending between the side edges 14a and b.
The sheet 12 has a plurality of spaced generally par-allel tie-in yarns 30 which are interwoven between the layers 18 and 20 in the warp direction of the sheet 12. Of course, in an alternative form, the sheet 12 could have tie-in filling yarns which are interwoven between the layers 18 and 20 of the sheet 12. With reference to Fig. 4, a substantial number of the warp yarns 22 in the layer 18 which are generally parallel to the tie-in yarns 30 are located intermediate the corresponding warp yarns 26 of the layer 20 of the sheet 12 to define a staggered configuration of the warp yarns 22 and 26. The tie-in yarns 30 limit freedom of movement of the staggered woven yarns 22 and 26 in order to retain them in place. Of course, the filling yarns 24 and 28 also may be staggered in the sheet 12. In any event, the staggered yarns give the sheet 12 an appearance of high count gauze, and improve the fluid transfer characteristics in the sponge 10, while the tie-in yarns 30 minimize snagging of the sheet 12.
With reference to Figs. 1-3, in an alternative embodi ment of the invention, the layer 18 may be woven ~rom hydropho-bic yarns, such as polyester, and the layer 20 may be wo~en from .~ ~
,:
~2~3333 hydrophilic yarns, such as cotton. When the sheet 12 is folded into the multiple ply configuration, the hydrophobic layer 18 faces outwardly from the folded sheet in order to define a non-adherent surface of the sponge 10 for contacting a wound on a patient, while the inner hydrophilic layer 20 provides absorb-ency for the sponge.
I~ith reference to Figs. 1-3, in yet another embodiment of the invention, the first layer 18 may be woven from yarns of a different size from the yarns in the second layer 20. In this emboaiment, the different sized yarns texturize the fabric, and provide different abrasion characteristics in the layers l~ and 20.
The foregoing detailed description is given for clear-ness of understanding only, and no unnecessary limitations lS should be understood therefrom, as modifications will be obvious to those skilled in the art.
B
,b
Claims (11)
1. A surgical sponge, comprising:
a sheet of absorbent material comprising a plural-ity of layers of an open mesh gauze fabric having generally par-allel woven spaced warp and filling yarns, said sheet having one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet, with a substantial number of the yarns in one layer generally par-allel to the tie-in yarns being located intermediate the corres-ponding yarns in another layer of the sheet to define a stag-gered configuration of the sheet yarns, with said tie-in yarns limiting freedom of movement of the staggered woven yarns to retain them in place, and with said sheet being folded into a multiple ply configuration.
a sheet of absorbent material comprising a plural-ity of layers of an open mesh gauze fabric having generally par-allel woven spaced warp and filling yarns, said sheet having one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet, with a substantial number of the yarns in one layer generally par-allel to the tie-in yarns being located intermediate the corres-ponding yarns in another layer of the sheet to define a stag-gered configuration of the sheet yarns, with said tie-in yarns limiting freedom of movement of the staggered woven yarns to retain them in place, and with said sheet being folded into a multiple ply configuration.
2. The sponge of claim 1 wherein said sheet has two layers.
3. The sponge of claim 1 wherein said tie-in yarns and staggered yarns comprise warp yarns of the sheet.
4. A surgical sponge, comprising:
a sheet of absorbent material comprising a plural-ity of layers of an open mesh gauze fabric having generally par-allel woven spaced warp and filling yarns, with at least one layer in the sheet comprising substantially hydrophobic yarns, with at least another layer of the sheet comprising substanti-ally hydrophilic yarns, with said sheet being folded into a mul-tiple ply configuration, and with the layer of hydrophobic yarns facing outwardly from the folded sheet.
a sheet of absorbent material comprising a plural-ity of layers of an open mesh gauze fabric having generally par-allel woven spaced warp and filling yarns, with at least one layer in the sheet comprising substantially hydrophobic yarns, with at least another layer of the sheet comprising substanti-ally hydrophilic yarns, with said sheet being folded into a mul-tiple ply configuration, and with the layer of hydrophobic yarns facing outwardly from the folded sheet.
5. The sponge of claim 4 wherein the hydrophobic layer comprises polyester yarns.
6. The sponge of claim 4 wherein the hydrophilic layer comprises cotton yarns.
7. The sponge of claim 4 wherein the sheet has two layers.
8. The sponge of claim 4 wherein the sheet has one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet.
9. A surgical sponge, comprising:
a sheet of absorbent material comprising a plur-ality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns, with a substantial number of the yarns in one layer of the sheet being of a differ-ent size from a substantial number of yarns in another layer of the sheet, and with said sheet being folded into a multiple ply configuration.
a sheet of absorbent material comprising a plur-ality of layers of an open mesh gauze fabric having generally parallel woven spaced warp and filling yarns, with a substantial number of the yarns in one layer of the sheet being of a differ-ent size from a substantial number of yarns in another layer of the sheet, and with said sheet being folded into a multiple ply configuration.
10. The sponge of claim 9 wherein the sheet has two layers.
11. The sponge of claim 9 wherein the sheet has one or more spaced generally parallel tie-in yarns interwoven between the layers in at least one direction of the sheet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47245483A | 1983-03-07 | 1983-03-07 | |
| US472,454 | 1983-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1248333A true CA1248333A (en) | 1989-01-10 |
Family
ID=23875569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000448446A Expired CA1248333A (en) | 1983-03-07 | 1984-02-28 | Surgical sponge |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1248333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115581794A (en) * | 2022-08-31 | 2023-01-10 | 武汉纺织大学 | Oriented imbibition chitosan composite sponge and application thereof |
-
1984
- 1984-02-28 CA CA000448446A patent/CA1248333A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115581794A (en) * | 2022-08-31 | 2023-01-10 | 武汉纺织大学 | Oriented imbibition chitosan composite sponge and application thereof |
| CN115581794B (en) * | 2022-08-31 | 2023-08-08 | 武汉纺织大学 | Directional imbibition chitosan composite sponge and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |