CN203736390U - Wound covering - Google Patents
Wound covering Download PDFInfo
- Publication number
- CN203736390U CN203736390U CN201320329924.7U CN201320329924U CN203736390U CN 203736390 U CN203736390 U CN 203736390U CN 201320329924 U CN201320329924 U CN 201320329924U CN 203736390 U CN203736390 U CN 203736390U
- Authority
- CN
- China
- Prior art keywords
- wound
- layer
- tissue layer
- wound covering
- covering thing
- 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 - Fee Related
Links
Abstract
The utility model relates to a wound covering which is used for covering a wound. The wound covering is characterized by comprising a fabric layer and an adsorption layer, wherein the fabric layer is woven by polyacrylonitrile activated carbon fiber; the activated carbon fiber is formed from polyacrylonitrile oxidized fiber in hydrous carbon dioxide gas at the temperature of 700 DEG C TO 1200 DEG C for 1 to 60 min; the adsorption layer is arranged on one side, far away from the wound, of the fabric layer, and is made of macromolecule with high water absorbing capacity, cotton, alginate, polyvinyl alcohol, PU foam or the combination of the macromolecule, the cotton, the alginate, the polyvinyl alcohol and PU foam; the water absorbing capacity of the adsorption layer is higher than that of the fabric layer. As the fabric layer cannot generate dust and can be kept in a dry condition, the problem that the wound is not easy to heal can be effectively avoided.
Description
Technical field
This utility model relates to a kind of wound covering thing, refers to especially a kind of wound covering thing being made up of a tissue layer and an adsorption layer.
Background technology
In medical field, because the absorbability of absorbent charcoal material is stronger with gauze than traditional medical, be often applied to wound covering thing.But activated carbon felt Colophonium (Pitch) or lignin (Cellulose) etc. being made into existing Technology, cannot avoid having active carbon dust and produce, if can cause wound healing difficulty just accidentally fall into wound.
In addition, although the absorbability of above-mentioned absorbent charcoal material is stronger, but the tissue fluid producing when wound is while too much or changing new product in time, the reach capacity wound covering thing of state of absorption tissue fluid may cause wound too moist, thereby the healing of wound is had a negative impact.
Summary of the invention
For the problems referred to above, main purpose of the present utility model is to provide a kind of wound covering thing, wherein has and can directly contact wound and not have the activated carbon felt that dust produces, and more can make wound keep dry.
For achieving the above object, a kind of wound covering thing provided by the utility model, be used for covering a wound, it is characterized in that described wound covering thing comprises: a tissue layer, described tissue layer is to be formed by polyacrylonitrile active carbon fiber braiding, and its NACF be polyacrylonitrile oxidation fiber in moisture carbon dioxide, at 700 DEG C to 1200 DEG C, maintain 1 to 60 minute institute form; One adsorption layer, is located at the side of described tissue layer away from described wound, and its material is super absorbent polymer, cotton, alginate, polyvinyl alcohol, PU foam or its combination; Described adsorption layer to the absorbability of water higher than described tissue layer.
In above-mentioned technical solutions of the utility model, the volume ratio that the micropore that the NACF mesoporous of described tissue layer is less than 2 nanometers accounts for total hole is 30% to 70%.
The volume ratio that the micropore that the NACF mesoporous of described tissue layer is less than 2 nanometers accounts for total hole is 45% to 60%.
The BET specific surface area of the NACF of described tissue layer is between 300m
2/ g to 2000m
2between/g.
The far infrared irradiation rate of described tissue layer is greater than 75%.
The smelly eliminating rate of described tissue layer is greater than 65%.
Described tissue layer is greater than 70% to the antibiotic rate of staphylococcus aureus and bacillus pyocyaneus.
Also comprise and be located at the protective layer of described adsorption layer away from a side of described wound.
Also comprise and be located at the waterproof ventilative layer of described adsorption layer away from a side of described wound.
Also comprise and be located at that described tissue layer approaches a side of described wound and for contacting the anti-glutinous layer of described wound.
Adopt technique scheme, produce because the tissue layer of wound covering thing of the present utility model does not have dust, can directly contact wound and contribute to the healing of wound.In addition, because of adsorption layer to the absorbability of water higher than tissue layer, make most tissue fluid meeting being produced by wound be absorbed into adsorption layer from wound through tissue layer, and then the state that tissue layer is kept dry, avoid wound because of the too moist problem that is difficult for healing that produces with this.
Brief description of the drawings
Fig. 1 is the side view of the first preferred embodiment of this utility model wound covering thing;
Fig. 2 is the side view of the second preferred embodiment of this utility model wound covering thing;
Fig. 3 is the side view of the 3rd preferred embodiment of this utility model wound covering thing;
Fig. 4 is the side view of the 4th preferred embodiment of this utility model wound covering thing.
Detailed description of the invention
In order to describe structure of the present utility model, Characteristic in detail, the following preferred embodiment of existing act also coordinates brief description of the drawings as follows.
As shown in Figure 1, be the first preferred embodiment of this utility model wound covering thing 1, for covering a wound (not shown), wound covering thing 1 comprises a tissue layer 11 and an adsorption layer 12.
Tissue layer 11 is for contacting wound, and formed by polyacrylonitrile active carbon fiber braiding, and its manufacturing step is: one, a polyacrylonitrile oxidation fabric is provided; Two, taking moisture carbon dioxide as activated gas; Three, polyacrylonitrile oxidation fabric is placed in to high temperature furnace and is heated to 700-1200 DEG C, and import activated gas, maintain 1 minute to 1 hour and can form polyacrylonitrile active carbon fiber fabric, become tissue layer 11 through cutting into suitable size.The entrance of high temperature furnace all with inert gas shielding, is avoided the material generation spontaneous combustion of being volatilized by polyacrylonitrile oxidation fabric with outlet.In addition, preferably heating-up temperature interval is 900-1000 DEG C.
It should be noted that by the made polyacrylonitrile active carbon fiber fabric of preceding method and can not produce dust, can not affect the healing of wound therefore can directly contact wound.
Adsorption layer 12 is arranged at the side of tissue layer 11 away from wound, and its material is super absorbent polymer, cotton, alginate, PU foam, polyvinyl alcohol or its combination.Wherein, adsorption layer 12 to the absorbability of water higher than tissue layer 11.
In the present embodiment, be a pressure-sensitive adhesive agent 100 to be coated to the surface of tissue layer 11, then pressure-sensitive adhesive agent 100 coated to the surface of adsorption layer 12, finally both are carried out to pressing, the combination with reinforcement fabric ply 11 with adsorption layer 12.Pressure-sensitive adhesive agent adopts such as polyacrylate, siloxanes or poly-isobutyl diene etc.But adhesive agent also can select other kinds to substitute aforementioned pressure-sensitive adhesive agent.In addition, tissue layer 11 also can be combined by his mode of planting with adsorption layer 12, and for example specific weaving method, therefore pressure-sensitive adhesive agent 100 is also inessential in this utility model.
The feature of tissue layer 11 is as follows: one, the BET specific surface area of the NACF of tissue layer 11 is greater than 300m
2/ g, is preferably 600-2000m
2/ g; Two, to account for the volume ratio of total hole be 30%-70% to the micropore of the NACF of tissue layer 11, is preferably 45%-60%.What wherein, aperture was less than 2 nanometers is called micropore (micropore); Three, far infrared irradiation rate is greater than 75%; Four, smelly eliminating rate is greater than 65%; Five, the antibiotic rate of staphylococcus aureus is greater than to 70%, is preferably more than 90%.According to the specification of AATCC100, antibiotic rate (%)=(matched group antibacterial residual quantity-experimental group antibacterial residual quantity)/matched group antibacterial residual quantity x100%, represents that antibacterial effect better therefore antibiotic rate is higher; Six, the antibiotic rate of bacillus pyocyaneus is greater than to 70%, is preferably more than 90%.Wherein, BET specific surface area is less than about 280m
2/ g, micropore account for the active carbon fibre dimensional fabric that the volume ratio of total hole is less than approximately 30%, and its antibacterial ability, far infrared irradiation rate and smelly eliminating rate are obviously poor, as for BET specific surface area higher than 2000m
2the volume ratio that/g and micropore account for total hole, higher than 70% active carbon fibre dimensional fabric, is difficult for being made by prior art.
Refer to following result of the test, so that effect of tissue layer 11 is had to clearer and complete understanding.
Test piece one: use and one utilize aforesaid method, temperature be 1000 DEG C, time be the polyacrylonitrile active carbon fiber cloth (not shown) that makes under the condition of 5 minutes as tissue layer 11, its cloth is heavily 90g/m
2, BET specific surface area is 1000m
2/ g, and the volume ratio that micropore accounts for whole holes is 52%.Use a cotton (not shown) as adsorption layer 12, utilize polyacrylate pressure-sensitive adhesive agent and this polyacrylonitrile active carbon fiber cloth to cohere into lamellar wound covering thing 1 as shown in Figure 1.
Test piece records its staphylococcus aureus and bacillus pyocyaneus antibiotic rate is 99.9% once test (according to the specification of AATCC100); It is 89% that far infrared part of detecting records its far infrared irradiation rate through test (according to specification JSC-3); Test piece one is placed in to human wrist place, after one hour, approximately can improves 2 DEG C of the temperature that test piece one pastes place.It is 87% that smelly eliminating part of detecting records its NH3 smelly eliminating rate through test (according to the deodorization evaluation test method of Japanese JAFET), and test result is as listed in following table 1.
Test piece two, three: use one to utilize aforesaid method, being 700 DEG C in temperature is the polyacrylonitrile active carbon fiber cloth tissue layer 11 with test piece three as test piece two respectively making under the condition of 5 minutes with 900 DEG C, time, and its BET specific surface area is respectively 300,400m
2/ g, the volume ratio that micropore accounts for whole holes is respectively 34,38%.Other are as all identical with test piece one in method of testing such as bonding mode, smelly eliminating rate of tissue layer 11 and adsorption layer 12 etc., and test result is as listed in following table 1.
Test piece four, five: use one to utilize aforesaid method, temperature be 1000 DEG C, time be respectively 30 minutes with the condition of 60 minutes under the polyacrylonitrile active carbon fiber cloth tissue layer 11 with test piece five as test piece four respectively that makes, its BET specific surface area is respectively 1500,2000m
2/ g, the volume ratio that micropore accounts for whole holes is respectively 51,49%.Other are as all identical with test piece one in method of testing such as bonding mode, smelly eliminating rate of tissue layer 11 and adsorption layer 12 etc., and test result is as listed in following table 1.
Relatively test piece A, B: use one to utilize aforesaid method, temperature be 500 DEG C with 600 DEG C, time be the polyacrylonitrile active carbon fiber cloth that makes under the condition of 5 minutes as tissue layer, its BET specific surface area is respectively 100m
2/ g and 280m
2/ g, the volume ratio that micropore accounts for whole holes is respectively 10% and 27%.Other are as all identical with test piece one in method of testing such as bonding mode, smelly eliminating rate of tissue layer 11 and adsorption layer 12 etc., and test result is as listed in following table 1.
Table 1 is by the test result of the prepared wound covering thing of different activities carbon fabric
Test result from above-mentioned: one, BET specific surface area between 300 to 2000m
2between/g, the micropore test piece one to five of volume ratio between 30%-70% that account for total hole have preferably far infrared irradiation rate, smelly eliminating rate and staphylococcus aureus and bacillus pyocyaneus antibiotic rate; Two, BET specific surface area is lower than about 280m
2the volume ratio that/g and micropore account for total hole has poor far infrared irradiation rate, smelly eliminating rate and staphylococcus aureus and bacillus pyocyaneus antibiotic rate lower than approximately 30% comparison test piece A with comparison test piece B.
Bonded fabric layer 11 and absorbed layer 12, the advantage of this utility model wound covering thing 1 is as follows: the tissue layer 11 that, adopts polyacrylonitrile (PAN) NACF to be interwoven, can not produce dust, can directly contact wound, can not affect the healing of wound; Two,, because tissue layer 11 can directly contact wound, make polyacrylonitrile active carbon fiber can produce preferably smelly eliminating, antibacterial and emitting far infrared ray with blood circulation promoting texts; Three, because of adsorption layer 12 to the absorbability of water higher than tissue layer 11, make most wound fluid be absorbed into adsorption layer 12 via tissue layer 11, not only absorbability is stronger than known techniques, the state that more can make tissue layer 11 keep dry, avoids wound because too moist being difficult for heals thus.
As shown in Figure 2; for the second preferred embodiment of this utility model wound covering thing 1; its structure is roughly identical with the first preferred embodiment; difference is therebetween: wound covering thing 1 also comprises one and is arranged at the protective layer 13 of adsorption layer 12 away from a side of wound, to cover and to protect tissue layer 11 and adsorption layer 12.Any known protective layer that is used in wound covering thing all can be applicable to this utility model, such as polyethylene, polyurethane, nylon, polyamide, poly-cellulose, polrvinyl chloride, polyvinyl dichloride, polyolefin, polyureas and polyester etc.But protective layer 13 also can be established according to need and not.
As shown in Figure 3, for the 3rd preferred embodiment of this utility model wound covering thing 1, its structure is roughly identical with the first preferred embodiment, and difference is therebetween: wound covering thing 1 also comprises one and is arranged at the waterproof ventilative layer 14 of adsorption layer 12 away from a side of wound.By the setting of waterproof ventilative layer 14, in the time that the transudate of wound too much exceedes the absorbtivity of adsorption layer 12, wound fluid can be to leaking outside.In addition, also can prevent that wound from touching any outside liquid that can hinder wound healing.Any known waterproof ventilative layer that is used in wound covering thing all can be applicable to this utility model, such as PU resin, W/O oil-in-water type resin and politef (PTFE) etc.But waterproof ventilative layer 14 also can be established according to need and not.
As shown in Figure 4, for the 4th preferred embodiment of this utility model wound covering thing 1, its structure is roughly identical with the first preferred embodiment, and difference is therebetween: wound covering thing 1 also comprises is located at that tissue layer 11 approaches a side of wound and for contacting the anti-glutinous layer 15 of wound.The material of anti-glutinous layer 15 is porous substrate, any known anti-glutinous layer material that is used in wound covering thing all can be applicable to this utility model, such as natural fiber, polyethylene fibre, polyolefine fiber, polyester fiber, polyurethane fiber, Fypro, poly-cellulose fibre and cotton fiber etc., by the made thin film of above material, fabric or non-woven tool porous; Can penetrate mobile for body fluid or blood.Anti-glutinous layer 15 be difficult for wound produce be stained with glutinous, therefore can not damage wound when user is changed wound covering thing 1.But anti-glutinous layer 15 also can be established according to need and not.
According to spirit of the present utility model; the structure of wound covering thing can be changed; for example be provided with protective layer 13 is sandwiched in tissue layer 11 and adsorption layer 12 wherein with anti-glutinous layer 15 simultaneously; or be provided with waterproof ventilative layer 14 and anti-glutinous layer 15 simultaneously; such as these easy full of beard and variation, all should be contained by scope of patent protection of the present utility model.
Claims (7)
1. a wound covering thing, for covering a wound, is characterized in that described wound covering thing comprises:
One tissue layer, described tissue layer is to be formed by polyacrylonitrile active carbon fiber braiding;
One adsorption layer, is located at the side of described tissue layer away from described wound, and its material is super absorbent polymer, cotton, alginate, polyvinyl alcohol or PU foam; Described adsorption layer to the absorbability of water higher than described tissue layer.
2. wound covering thing as claimed in claim 1, is characterized in that: the volume ratio that the micropore that the NACF mesoporous of described tissue layer is less than 2 nanometers accounts for total hole is 30% to 70%.
3. wound covering thing as claimed in claim 2, is characterized in that: the volume ratio that the micropore that the NACF mesoporous of described tissue layer is less than 2 nanometers accounts for total hole is 45% to 60%.
4. wound covering thing as claimed in claim 1, is characterized in that: the BET specific surface area of the NACF of described tissue layer is between 300m
2/ g to 2000m
2between/g.
5. wound covering thing as claimed in claim 1, is characterized in that: also comprise and be located at the protective layer of described adsorption layer away from a side of described wound.
6. wound covering thing as claimed in claim 1, is characterized in that: also comprise and be located at the waterproof ventilative layer of described adsorption layer away from a side of described wound.
7. wound covering thing as claimed in claim 1, is characterized in that: also comprise and be located at that described tissue layer approaches a side of described wound and for contacting the anti-glutinous layer of described wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320329924.7U CN203736390U (en) | 2013-06-07 | 2013-06-07 | Wound covering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320329924.7U CN203736390U (en) | 2013-06-07 | 2013-06-07 | Wound covering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203736390U true CN203736390U (en) | 2014-07-30 |
Family
ID=51336261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320329924.7U Expired - Fee Related CN203736390U (en) | 2013-06-07 | 2013-06-07 | Wound covering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203736390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2531344A (en) * | 2014-10-17 | 2016-04-20 | Brightwake Ltd | Composite wound dressing |
| GB2531345A (en) * | 2014-10-17 | 2016-04-20 | Brightwake Ltd | Composite wound dressing |
-
2013
- 2013-06-07 CN CN201320329924.7U patent/CN203736390U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2531344A (en) * | 2014-10-17 | 2016-04-20 | Brightwake Ltd | Composite wound dressing |
| GB2531345A (en) * | 2014-10-17 | 2016-04-20 | Brightwake Ltd | Composite wound dressing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI767911B (en) | Negative pressure wound dressing management system | |
| CN103857365B (en) | Wound dressing and treatment method | |
| TWI524906B (en) | Surface sheet material for wound dressing and wound dressing | |
| JP5052789B2 (en) | Wound dressing and wound dressing kit | |
| CN104884008A (en) | Wound dressing | |
| CN103251482A (en) | Wound covering | |
| US20220062061A1 (en) | Negative pressure wound therapy apparatus | |
| US20130012902A1 (en) | Wound dressing comprising a superabsorbing substance | |
| US9125963B2 (en) | Wound dressing | |
| WO2013029652A1 (en) | Bandage | |
| CN105597136A (en) | Moisture-transfer and fast drying wound dressing | |
| CN206275772U (en) | A kind of Anti-seepage air-permeable pad of cotion | |
| CN203736390U (en) | Wound covering | |
| CN206273260U (en) | A kind of new superabsorbent water dressing | |
| CN201660736U (en) | Moisture-permeability negative-ion releasing fabric | |
| CN218458247U (en) | Portable wound surface management dressing | |
| CN204839946U (en) | Strong pad that absorbs water of imitating | |
| KR101620483B1 (en) | Absorbent fibrous sheet materials | |
| CN111941942A (en) | Breathable fabric | |
| CN209059663U (en) | A kind of medical antislip nonwoven ace bandage | |
| CN208319412U (en) | Self-adhering-type surgical incision dressing | |
| TWI594737B (en) | Wound covering | |
| CN108517187A (en) | A kind of non-woven fabrics | |
| CN213830750U (en) | Heat-absorbing jean fabric with cool feeling | |
| CN219007259U (en) | Wood pulp composite non-woven fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20190607 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |