CN204671391U - A kind of hydrogel foam dressing - Google Patents
A kind of hydrogel foam dressing Download PDFInfo
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- CN204671391U CN204671391U CN201520316593.2U CN201520316593U CN204671391U CN 204671391 U CN204671391 U CN 204671391U CN 201520316593 U CN201520316593 U CN 201520316593U CN 204671391 U CN204671391 U CN 204671391U
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Abstract
This utility model relates to a kind of hydrogel foam dressing, belongs to medical foam dressing field, is made up of backing layer, froth bed, hydrogel layer and protective layer, and tight bond successively; Described hydrogel layer is low molecular weight chitosan hydrogel layer, and the molecular mass of described low molecular weight chitosan is 5000 ~ 10000 Da.The sepage of wound surface, by froth bed and hydrogel layer compound, can either absorb cleanly by the hydrogel foam dressing that this utility model provides, and can reach again the moist environment keeping wound, make wound quickly-healing in moist environment, and can not adhesion wound.In addition, hydrogel layer is low molecular weight chitosan hydrogel layer, is easily absorbed by wound surface, effectively can promote the healing of wound, and this layer has the effect of strong antibacterial, hemostasis simultaneously.The surface area arranging hydrogel layer is less than the surface area of froth bed, is in order to the froth bed at edge can absorb unnecessary wound exudate, keeps the drying of wound surface surrounding normal skin, is not corroded by sepage.
Description
Technical field
This utility model belongs to medical foam dressing field, in particular to a kind of hydrogel foam dressing.
Background technology
Compared with traditional dressing; aerogel dressing has the advantage such as adhesion wound surface, protection wound surface; but there is antibacterial effect difference, healing cycle length, organize the shortcomings such as easy hypertrophy, liquid absorption are poor, haemostatic effect is undesirable in the aerogel dressing occurred in the market; cause postoperative care cycle of a specified duration; nursing procedure is many, is not the best selection of Clinical practice.
Chitosan-phospholipid complex can promote the healing of epithelial growth and wound, and chitosan can be absorbed by normal skin histology, but injured skin histology reduces greatly to its absorbability.Research shows, the chitosan that molecular mass is little is more easily absorbed by the body, and therefore for wounded tissue, selects low-molecular-weight chitosan to prepare medical dressing and is necessary.Chitosan is prepared into hydrogel and is used for the treatment of wound surface, the research of this respect is many, but selects low-molecular-weight chitosan to prepare the hydrogel easily absorbed, and has no report at present.
A large amount of sepages is often flowed out at the wound surface place of wound or Post operation, major part dressing imbibition ability is not strong, or when transudate is too much, sepage is easily extruded, the healthy skin tissue of dipping wound circumference, causes a lot of inconvenience to clinical treatment and postoperative care.Foam dressing, as a kind of new pattern compress, has very strong imbibition ability, lock outlet capacity, is widely used in the treatment of various acute and chronic wound surface with nursing.Medical polyurethane film has good moisture-penetrable ventilated property, and sepage can by its surperficial rapid evaporation in surrounding.Aerogel dressing in the market, the kind of foam dressing are many, but the combine dressing of hydrogel and foam is fewer, and the hydrogel particularly prepared with low molecular weight chitosan and the combine dressing of foam have no report.
Existing disclosed a kind of alginate foam dressing, it is made up of adhesive linkage, alginate froth bed, macromolecule nethike embrane layer, off-style paper layer, adhesive linkage is the non-woven fabrics with one side adhesive, alginate froth bed is fixed on the adhesive in the middle of adhesive linkage, macromolecule nethike embrane layer covers above alginate froth bed, and off-style paper layer divides two pages of juxtapositions to cover above described alginate froth bed and macromolecule nethike embrane layer.This dressing is owing to alginate froth bed being provided with macromolecule nethike embrane layer, and after causing alginate froth bed to absorb wound exudate, wound surface is dry incrustation easily, is unfavorable for wound healing; Macromolecule nethike embrane layer and wound directly contact and are easy to cause wound surface and the adhesion of macromolecule nethike embrane layer, easily cause secondary injury when peeling off; Due to across macromolecule nethike embrane layer, the anti-microbial property of this alginate froth bed declines, and easily makes wound breed bacteria; In this dressing, release paper only covers above alginate froth bed and macromolecule nethike embrane layer, and the tack coat come out then easily makes its lost cementation if any adhesive, is then unfavorable for the fixing of dressing as not having adhesive.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, there is provided a kind of hydrogel foam compound dressing, it can not only cycle of accelerating wound, there is effect that is antibacterial, that prevent adhesion simultaneously, can also absorb and a large amount of organize sepage, when being subject to external force extruding, sepage is not easily extruded.
The technical solution of the utility model is as follows:
A kind of hydrogel foam dressing, is made up of backing layer, froth bed, hydrogel layer and protective layer, and tight bond successively; Described hydrogel layer is low molecular weight chitosan hydrogel layer, and the molecular mass of described low molecular weight chitosan is 5000 ~ 10000 Da.By froth bed and hydrogel layer compound, the sepage of wound surface can either be absorbed cleanly, the moist environment keeping wound can be reached again, make wound quickly-healing in moist environment, and can not adhesion wound.In addition, hydrogel layer is low molecular weight chitosan hydrogel layer, has and is easily absorbed by wound surface, the effective healing promoting wound, and this layer has the effect of strong antibacterial, hemostasis simultaneously.
Further, the surface area of described hydrogel layer is less than the surface area of froth bed.The surface area arranging hydrogel layer is less than the surface area of froth bed, is in order to the froth bed at edge can absorb unnecessary wound exudate, keeps the drying of wound surface surrounding normal skin, is not corroded by sepage.
Further, the surface area of described froth bed is less than the surface area of backing layer.The surface area arranging froth bed is less than the surface area of backing layer, is in order on the edge of backing layer, coating medical glue fixes dressing.
Preferably, described froth bed is chitosan foam and/or polyurethane foam.Froth bed possesses excellent antibacterial, fungistatic effect while selecting chitosan foam to make it possess strong absorbent; Select polyurethane foam to make it possess the absorbent stronger than chitosan, these two kinds of selections can select suitable dressing according to the situation of wound.
Preferably, described backing layer is transparent thin polyurethane rete.Polyurethane film has very strong moisture-penetrable ventilated water proofing property, even if patient in use encounters a small amount of water because of carelessness, also can not have influence on the use of dressing.
Further, the one side that contacts with froth bed of described thin polyurethane rete and be not coated with medical pressure-sensitive adhesive by the part that froth bed covers.Be not coated with medical pressure-sensitive adhesive by the part that froth bed covers at thin polyurethane rete, be in order to by dressing when not better being fixed on wound by when foreign object, prevent dressing landing.
Further, described protective layer is divided into two pages, and juxtaposition covers above hydrogel layer, and extends to two ends, until cover backing layer two ends.Protective layer being extended to backing layer two ends is pressure sensitive adhesives in order to protect backing layer two ends to apply, makes pressure sensitive adhesive keep original shoes.
Preferably, described protective layer is release paper.
The beneficial effects of the utility model are: (1) is by froth bed and hydrogel layer compound, utilize two-layer synergism the sepage of wound surface can either be absorbed cleanly, the moist environment keeping wound can be reached again, make wound quickly-healing in moist environment, and can not adhesion wound.In addition, hydrogel layer is low molecular weight chitosan hydrogel layer, has and is easily absorbed by wound surface, effectively can promote the healing of wound, and this layer has the effect of strong antibacterial, hemostasis simultaneously.(2) surface area arranging hydrogel layer is less than the surface area of froth bed, is in order to the froth bed at edge can absorb unnecessary wound exudate, keeps the drying of wound surface surrounding normal skin, is not corroded by sepage.(3) protective layer being extended to backing layer two ends is pressure sensitive adhesives in order to protect backing layer two ends to apply, makes pressure sensitive adhesive keep original shoes.(4) backing layer polyurethane film has very strong moisture-penetrable ventilated water proofing property, and the sepage of organizing that froth bed absorbs easily is evaporated through this layer, provides moistening healing environment to wound surface, promotes the healing of wound further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of hydrogel foam dressing of this utility model;
Description of reference numerals: 1 is backing layer, 2 is froth bed, and 3 is hydrogel layer, and 4 is protective layer.
Specific embodiment
Below in conjunction with specific embodiment, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment, this utility model is further elaborated.Should be appreciated that specific embodiments and the drawings described herein only in order to explain this utility model, and be not used in restriction this utility model.
Embodiment 1:
A kind of hydrogel foam dressing of the present utility model as shown in Figure 1, is made up of backing layer 1, froth bed 2, hydrogel layer 3 and protective layer 4, and tight bond successively; Described hydrogel layer 3 is low molecular weight chitosan hydrogel layer, and the molecular mass of described low molecular weight chitosan is 5000 ~ 10000 Da.By froth bed 2 and hydrogel layer 3 compound, the sepage of wound surface can either be absorbed cleanly, the moist environment keeping wound can be reached again, make wound quickly-healing in moist environment, and can not adhesion wound.In addition, hydrogel layer 3 is low molecular weight chitosan hydrogel layer, has and is easily absorbed by wound surface, effectively can promote the healing of wound, and this layer has the effect of strong antibacterial, hemostasis simultaneously.The surface area of described hydrogel layer 3 is less than the surface area of froth bed 2.The surface area arranging hydrogel layer 3 is less than the surface area of froth bed 2, is in order to the froth bed 2 at edge can absorb unnecessary wound exudate, keeps the drying of wound surface surrounding normal skin, is not corroded by sepage.The surface area of described froth bed 2 is less than the surface area of backing layer 1.The surface area arranging froth bed 2 is less than the surface area of backing layer 1, is in order on the backing layer 1 at edge, dressing fixed by coating medical glue.Described froth bed 2 is chitosan foam and/or polyurethane foam.Froth bed 2 possesses excellent antibacterial, fungistatic effect while selecting chitosan foam to make it possess strong absorbent; Select polyurethane foam to make it possess the absorbent stronger than chitosan, this selects in two to select suitable dressing according to the situation of wound.Described backing layer 1 is transparent thin polyurethane rete.Polyurethane film has very strong moisture-penetrable ventilated water proofing property, even if patient in use encounters a small amount of water because of carelessness, also can not have influence on the use of dressing.The one side that described thin polyurethane rete contacts with froth bed and be not coated with medical pressure-sensitive adhesive by the part that froth bed covers.Scribble medical pressure-sensitive adhesive at thin polyurethane rete, be in order to by dressing when not better being fixed on wound by when foreign object, prevent dressing landing.Described protective layer 4 is release paper, is divided into two pages of juxtapositions to cover above hydrogel layer, and extends to two ends, until cover backing layer two ends.Being prolonged by protective layer 4 raw is pressure sensitive adhesives in order to protect backing layer 1 two ends apply to backing layer 1 two ends, makes pressure sensitive adhesive maintenance original shoes.
During use, open protective layer 4, hydrogel layer 3 is aimed at wound surface, utilize the sepage of froth bed 2 and hydrogel layer 3 pairs of wounds to absorb, and utilize hydrogel layer to keep the moist environment of wound, make wound healing, adhesion wound.Wound exudate can utilize the froth bed 2 at edge to absorb from the part that hydrogel layer 3 overflows, and keeps the drying of surrounding normal skin, is not corroded by sepage.Utilize the backing layer 1 of the medical pressure-sensitive adhesive of edge coating to be pasted onto on skin, make its not landing for fixing dressing.
The present embodiment accompanying drawing only provides the situation of the sectional drawing of dressing, certainly, and overall dimensions square, circular, ellipse, H type or more of dressing on this basis.Can according to the shape of wound or wound type, selectivity uses dressing.
Claims (8)
1. a hydrogel foam dressing, is characterized in that, is made up of backing layer, froth bed, hydrogel layer and protective layer, and tight bond successively; Described hydrogel layer is low molecular weight chitosan hydrogel layer, and the molecular mass of described low molecular weight chitosan is 5000 ~ 10000 Da.
2. a kind of hydrogel foam dressing according to claim 1, is characterized in that, the surface area of described hydrogel layer is less than the surface area of froth bed.
3. a kind of hydrogel foam dressing according to any one of claim 1 or 2, is characterized in that, the surface area of described froth bed is less than the surface area of backing layer.
4. a kind of hydrogel foam dressing according to claim 3, is characterized in that, described froth bed is chitosan foam and/or polyurethane foam.
5. a kind of hydrogel foam dressing according to claim 3, is characterized in that, described backing layer is transparent thin polyurethane rete.
6. a kind of hydrogel foam dressing according to claim 5, is characterized in that, the one side that described thin polyurethane rete contacts with froth bed and be not coated with medical pressure-sensitive adhesive by the part that froth bed covers.
7. a kind of hydrogel foam dressing according to claim 6, it is characterized in that, described protective layer is divided into two pages, and juxtaposition covers above hydrogel layer, and extends to two ends, until cover backing layer two ends.
8. a kind of hydrogel foam dressing according to claim 7, is characterized in that, described protective layer is release paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316593.2U CN204671391U (en) | 2015-05-18 | 2015-05-18 | A kind of hydrogel foam dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316593.2U CN204671391U (en) | 2015-05-18 | 2015-05-18 | A kind of hydrogel foam dressing |
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| Publication Number | Publication Date |
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| CN204671391U true CN204671391U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520316593.2U Expired - Fee Related CN204671391U (en) | 2015-05-18 | 2015-05-18 | A kind of hydrogel foam dressing |
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| CN (1) | CN204671391U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597138A (en) * | 2016-02-25 | 2016-05-25 | 天津泰创生物科技有限公司 | Ozonide oil blasting bead and use method and dressing plaster |
| CN105749325A (en) * | 2016-04-11 | 2016-07-13 | 武汉海吉亚生物科技有限公司 | Medical silica gel dressing and manufacture method thereof |
| CN107308485A (en) * | 2017-07-13 | 2017-11-03 | 北京健康广济生物技术有限公司 | Hydrogel foam composite and its production technology |
| CN108904135A (en) * | 2018-09-15 | 2018-11-30 | 深圳市浓华生物电子科技有限公司 | A kind of moisture film is cured the wound patch |
| CN109602474A (en) * | 2019-01-29 | 2019-04-12 | 李映辉 | A kind of infusion pressurization hemostatic adhesive bandage |
| CN109620997A (en) * | 2019-01-18 | 2019-04-16 | 万绵水 | Liquefaction of fat wound healing functional dressings and preparation method thereof |
| CN112206093A (en) * | 2019-07-10 | 2021-01-12 | 广西美丽肤医疗器械有限公司 | Waterproof breathable wet dressing |
| CN112402099A (en) * | 2020-11-11 | 2021-02-26 | 问兰药业(苏州)有限公司 | Portable and efficient burn and scald dressing |
| CN114668885A (en) * | 2022-04-15 | 2022-06-28 | 国科瑞诺(中山)生物科技有限公司 | Antibacterial healing-promoting functional dressing and preparation method thereof |
| CN115920112A (en) * | 2022-12-02 | 2023-04-07 | 深圳市菩安科技有限公司 | Long-acting antibacterial glucan-based transparent hydrogel dressing and preparation method thereof |
-
2015
- 2015-05-18 CN CN201520316593.2U patent/CN204671391U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597138A (en) * | 2016-02-25 | 2016-05-25 | 天津泰创生物科技有限公司 | Ozonide oil blasting bead and use method and dressing plaster |
| CN105749325A (en) * | 2016-04-11 | 2016-07-13 | 武汉海吉亚生物科技有限公司 | Medical silica gel dressing and manufacture method thereof |
| CN107308485A (en) * | 2017-07-13 | 2017-11-03 | 北京健康广济生物技术有限公司 | Hydrogel foam composite and its production technology |
| CN108904135A (en) * | 2018-09-15 | 2018-11-30 | 深圳市浓华生物电子科技有限公司 | A kind of moisture film is cured the wound patch |
| CN109620997A (en) * | 2019-01-18 | 2019-04-16 | 万绵水 | Liquefaction of fat wound healing functional dressings and preparation method thereof |
| CN109602474A (en) * | 2019-01-29 | 2019-04-12 | 李映辉 | A kind of infusion pressurization hemostatic adhesive bandage |
| CN112206093A (en) * | 2019-07-10 | 2021-01-12 | 广西美丽肤医疗器械有限公司 | Waterproof breathable wet dressing |
| CN112402099A (en) * | 2020-11-11 | 2021-02-26 | 问兰药业(苏州)有限公司 | Portable and efficient burn and scald dressing |
| CN114668885A (en) * | 2022-04-15 | 2022-06-28 | 国科瑞诺(中山)生物科技有限公司 | Antibacterial healing-promoting functional dressing and preparation method thereof |
| WO2023198086A1 (en) * | 2022-04-15 | 2023-10-19 | 国科瑞诺(中山)生物科技有限公司 | Antibacterial healing-promoting functionalized dressing and preparation method therefor |
| CN115920112A (en) * | 2022-12-02 | 2023-04-07 | 深圳市菩安科技有限公司 | Long-acting antibacterial glucan-based transparent hydrogel dressing and preparation method thereof |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 |