CN204446300U - A kind of composite medical dressing - Google Patents
A kind of composite medical dressing Download PDFInfo
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- CN204446300U CN204446300U CN201520074551.2U CN201520074551U CN204446300U CN 204446300 U CN204446300 U CN 204446300U CN 201520074551 U CN201520074551 U CN 201520074551U CN 204446300 U CN204446300 U CN 204446300U
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- layer
- dressing
- carboxymethyl chitosan
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- chitosan hydrogel
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Abstract
This utility model provides a kind of composite medical dressing, from the side for contacting with wound site, comprise dressing layer successively, adhered layer, described dressing layer is that carboxymethyl chitosan hydrogel layer and polyurethane film lamination system form, described adhered layer comprises polyurethane film and is coated in the pressure sensitive adhesive of its nearly dressing layer side, and dressing layer and adhered layer are transparent.Carboxymethyl chitosan hydrogel layer surface is covered with the off-style paper layer be made up of Ge Laxin silicone oil paper, and thin polyurethane rete bonds away from the side of carboxymethyl chitosan hydrogel layer and adhered layer.This dressing structure is simple, easy to make, easy to use.This compound dressing not only has antibacterial, wound healing promoting, breathes freely, suppresses synulotic effect, and can also understand wound healing situation in real time, facilitates the adjustment of wound therapy regimen, more convenient and practical.Solve the difficult problem that traditional dressing needs secondary dressing fixing simultaneously.
Description
Technical field
This utility model belongs to medical material technical field, relates to a kind ofly having antibacterial, wound healing promoting, observable wound situation composite medical dressing.
Background technology
Because burn, ulcer or other reasons cause large-area skin injury, the flap coverage such as multiplex artificial skin, collagem membrane (sponge) clinically, reduce the loss of tissue fluid and albumen, reduce bacteria attack wound surface, wound healing.But there is histocompatibility difference in these materials, mechanical strength is low, without shortcomings such as antibacterial activities.Carboxymethyl chitosan has good biocompatibility, biocidal property, can promote the character such as fibroblastic growth, is suitable as Wound dressing material.Carboxymethyl chitosan can not only promote the growth of skin flbroblast and epidermal keratinocytes, wound healing, and can suppress the secretion of type i collagen fiber (the major collagen composition in cicatrix), reduces the ratio of I/III collagen.Therefore, carboxymethyl chitosan has the growth of promotion normal skin fibroblast and suppresses cicatrical fibrosis to be formed with the effect of dual biological activity, effectively can suppress cicatrization while wound healing.In addition, because the amino in carboxymethyl chitosan can play certain effect with the antibacterial of wound surface, reduce the activity of antibacterial, thus can certain bacteriostasis property be played, prevention traumatic infection.Therefore, carboxymethyl chitosan is a kind of Wound dressing material of good performance.
Use wound dressing, when needs observe wound or wound surface situation, great majority are all need to tear adhered layer or take off outer fixing dressing could observe, like this, be unfavorable for that medical personnel more enter wound situation in time, and adhered layer of repeatedly tearing can increase the misery of patient.
Utility model content
The technical problem that this utility model solves is to provide a kind of wound healing promoting, ventilative, the convenient composite medical dressing observing wound healing situation.This composite medical dressing is direct and Wound contact by carboxymethyl chitosan hydrogel layer, the performance of carboxymethyl chitosan hydrogel layer biological function can be contributed to, transparent thin polyurethane rete, not only moisture-penetrable ventilated property is stronger, the wound exudate absorbed in hydrogel layer can be made through precipitation, there is provided moistening healing environment to wound surface, and adhered layer and dressing layer have transparent nature, two-layer compound also can directly observe wound healing situation.Adhered layer plays the effect of fixing dressing, solves the difficult problem that dressing needs secondary dressing fixing.
For solving above-mentioned technical barrier, the technical scheme that this utility model provides is:
Described a kind of composite medical dressing, from the side for contacting with wound site, comprise dressing layer successively, adhered layer, it is characterized in that: described dressing layer is that carboxymethyl chitosan hydrogel layer and polyurethane film lamination system form, and described polyurethane film laminating is located at described adhered layer side, and described adhered layer comprises polyurethane film and is coated in the pressure sensitive adhesive of its nearly dressing layer side, described dressing layer and adhered layer have transparent nature, and two-layer compound also can directly observe wound healing situation.
Nano-far-infrared powder body is mixed with in described carboxymethyl chitosan hydrogel layer, make this dressing while possessing the performance of carboxymethyl chitosan, also can play effect of nano-far-infrared powder body, can promote and improve blood circulation, strengthen the metabolic function of human body, improve the immunity of human body, there is antiinflammatory, detumescence, analgesic effect simultaneously.
Described carboxymethyl chitosan hydrogel layer thickness is 0.1mm-2mm.Described carboxymethyl chitosan hydrogel layer is provided with aperture, and aperture is less than 30 μm, and aperture rate is at 45%-60%.Described carboxymethyl chitosan hydrogel layer is covered with release paper away from adhered layer side, and release paper periphery and adhered layer bond fixing.
Further, described dressing layer by layer size be less than adhesive-layer.
Preferably, described release paper is Ge Laxin silicone oil paper, plays protection against the tide, grease proofing effect.
Preferably, described pressure sensitive adhesive is acrylate pressure sensitive adhesive, polyurethane contact adhesive, medical Polyisobutylene PSA.
During use, open release paper, directly by carboxymethyl chitosan hydrogel layer and Wound contact, transparent thin polyurethane rete, not only moisture-penetrable ventilated property is stronger, and the wound exudate absorbed in hydrogel layer can be made through precipitation, and is conducive to directly observing wound healing situation.Adhered layer plays the effect of fixing dressing.
The beneficial effects of the utility model: be mixed with nano-far-infrared powder body in carboxymethyl chitosan hydrogel layer, also can play the antiinflammatory of nano-far-infrared powder body, detumescence, analgesic function while making hydrogel possess the performance of carboxymethyl chitosan, make dressing function more comprehensive.By carboxymethyl chitosan hydrogel layer and transparent polyurethane film lamination system are formed, the wound exudate absorbed in hydrogel layer can be made through precipitation, the injury avoiding sepage to cross multipair skin causing, moistening healing environment is provided to wound surface, and dressing layer and adhered layer are transparent, two-layer be compounded with to be beneficial to observe wound healing situation.Real-time understanding wound healing situation, facilitates the adjustment of therapeutic scheme, more convenient and practical.And adhered layer plays the effect of fixing dressing, solve the difficult problem that dressing needs secondary dressing fixing.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model composite medical dressing.
Description of reference numerals: 1, release paper; 2, carboxymethyl chitosan hydrogel layer; 3, thin polyurethane rete; 4, adhered layer.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1:
As shown in Figure 1, a kind of composite medical dressing, carboxymethyl chitosan hydrogel layer 2 and thin polyurethane rete 3 lamination system form dressing layer.Wherein, nano-far-infrared powder body is mixed with in carboxymethyl chitosan hydrogel layer 2.Carboxymethyl chitosan hydrogel layer 2 is covered with away from the side of adhered layer 4 off-style paper layer 1 be made up of Ge Laxin silicone oil paper, adhered layer 4 comprises transparent polyurethane film and is coated in its side acrylate pressure sensitive adhesive, and thin polyurethane rete 3 and adhered layer are coated with acrylate pressure sensitive adhesive side and bond.The thickness of hydrogel is 0.1mm, and hydrogel has aperture, and aperture is less than 30um, and aperture rate is 45% ~ 60%; Adhered layer grammes per square metre 70g/m
2; Off-style paper layer grammes per square metre is 60g/m
2.
Embodiment 2:
As shown in Figure 1, a kind of composite medical dressing, carboxymethyl chitosan hydrogel layer 2 and thin polyurethane rete 3 lamination system form dressing layer.Wherein, nano-far-infrared powder body is mixed with in carboxymethyl chitosan hydrogel layer 2.Carboxymethyl chitosan hydrogel layer 2 is covered with away from the side of adhered layer 4 off-style paper layer 1 be made up of Ge Laxin silicone oil paper, adhered layer 4 comprises transparent polyurethane film and is coated in its side polyurethane contact adhesive, and thin polyurethane rete 3 and adhered layer are coated with polyurethane contact adhesive side and bond.The thickness of hydrogel is 0.5mm, and hydrogel has aperture, and aperture is less than 30um, and aperture rate is 45% ~ 60%; Adhered layer grammes per square metre 60g/m
2; Off-style paper layer grammes per square metre is 70g/m
2.
Embodiment 3:
As shown in Figure 1, a kind of composite medical dressing, carboxymethyl chitosan hydrogel layer 2 and thin polyurethane rete 3 lamination system form dressing layer.Wherein, nano-far-infrared powder body is mixed with in carboxymethyl chitosan hydrogel layer 2.Carboxymethyl chitosan hydrogel layer 2 is covered with away from the side of adhered layer 4 off-style paper layer 1 be made up of Ge Laxin silicone oil paper, adhered layer 4 comprises transparent polyurethane film and is coated in the medical Polyisobutylene PSA in its side, and thin polyurethane rete 3 and adhered layer are coated with medical Polyisobutylene PSA side and bond.The thickness of hydrogel is 1.0mm, and hydrogel has aperture, and aperture is less than 30um, and aperture rate is 45% ~ 60%; Adhered layer grammes per square metre 65g/m
2; Off-style paper layer grammes per square metre is 70g/m
2.
Claims (6)
1. a composite medical dressing, from the side for contacting with wound site, comprise dressing layer successively, adhered layer, it is characterized in that: described dressing layer is that carboxymethyl chitosan hydrogel layer and polyurethane film lamination system form, described polyurethane film laminating is located at described adhered layer side, and described adhered layer comprises polyurethane film and is coated in the pressure sensitive adhesive of its nearly dressing layer side.
2. a kind of composite medical dressing according to claim 1, is characterized in that: be mixed with nano-far-infrared powder body in described carboxymethyl chitosan hydrogel layer, and described carboxymethyl chitosan hydrogel layer thickness is 0.1mm-2mm.
3. a kind of composite medical dressing according to claim 1, is characterized in that: described carboxymethyl chitosan hydrogel layer is provided with aperture, and aperture is less than 30 μm, and aperture rate is at 45%-60%.
4. a kind of composite medical dressing according to claim 1, is characterized in that: described carboxymethyl chitosan hydrogel layer is coated with release paper away from the side of adhered layer, and described release paper outer rim and adhered layer bond fixing.
5. a kind of composite medical dressing according to claim 4, is characterized in that: described release paper is Ge Laxin silicone oil paper.
6. a kind of composite medical dressing according to claim 1, is characterized in that: described dressing layer by layer size is less than adhered layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074551.2U CN204446300U (en) | 2015-02-03 | 2015-02-03 | A kind of composite medical dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074551.2U CN204446300U (en) | 2015-02-03 | 2015-02-03 | A kind of composite medical dressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204446300U true CN204446300U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520074551.2U Expired - Fee Related CN204446300U (en) | 2015-02-03 | 2015-02-03 | A kind of composite medical dressing |
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| Country | Link |
|---|---|
| CN (1) | CN204446300U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106798944A (en) * | 2017-01-16 | 2017-06-06 | 广州弘泰塑胶科技有限公司 | TPU medical treatment application films and preparation method thereof |
| CN108542897A (en) * | 2018-05-22 | 2018-09-18 | 代朋岳 | A kind of application for treating canker sore |
| CN116328016A (en) * | 2023-04-04 | 2023-06-27 | 中山大学附属第七医院(深圳) | Novel self-pressure-measuring balloon catheter |
| CN116407675A (en) * | 2023-04-21 | 2023-07-11 | 上海市第十人民医院 | Antibacterial gel and preparation method and application thereof |
-
2015
- 2015-02-03 CN CN201520074551.2U patent/CN204446300U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106798944A (en) * | 2017-01-16 | 2017-06-06 | 广州弘泰塑胶科技有限公司 | TPU medical treatment application films and preparation method thereof |
| CN108542897A (en) * | 2018-05-22 | 2018-09-18 | 代朋岳 | A kind of application for treating canker sore |
| CN116328016A (en) * | 2023-04-04 | 2023-06-27 | 中山大学附属第七医院(深圳) | Novel self-pressure-measuring balloon catheter |
| CN116407675A (en) * | 2023-04-21 | 2023-07-11 | 上海市第十人民医院 | Antibacterial gel and preparation method and application thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20220203 |