CN209751375U - foam dressing with medicine slow-release function - Google Patents
foam dressing with medicine slow-release function Download PDFInfo
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- CN209751375U CN209751375U CN201821838845.8U CN201821838845U CN209751375U CN 209751375 U CN209751375 U CN 209751375U CN 201821838845 U CN201821838845 U CN 201821838845U CN 209751375 U CN209751375 U CN 209751375U
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- foam dressing
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Abstract
The utility model provides a foam dressing with drug slow release function, which comprises a first protective layer (1), a foam layer (2), a slow release layer (3) and a second protective layer (4) which are sequentially bonded from top to bottom; the slow release layer (3) is provided with meshes (5); the meshes (5) are oval. The utility model discloses a foam dressing has not only realized the medicine slow-release in the foam blanket through setting up the slowly-releasing layer, has alleviateed the direct stimulation of medicine to wound and skin, has avoided the adhesion of wound and foam dressing moreover, has reduced the secondary damage of foam dressing to the wound, through set up oval mesh on the slowly-releasing layer, has not only reached the slowly-releasing effect, has adjusted medicine release rate moreover, has improved the slowly-releasing efficiency of medicine, foam dressing hemostasis ability reinforce can not cause the secondary damage to the wound, and biodegradability is good, friendly to the environment.
Description
Technical Field
The utility model belongs to the technical field of the medicine, a foam dressing with medicine slowly-releasing function is related to.
Background
traditional wound dressings include dry gauze and oil gauze, the dry gauze is used to cover the wound, but the exudate management capacity is limited, and adhesion to the wound may cause re-injury of the new epithelial tissue; the oil gauze type dressing contains vaseline or triglyceride, and can prevent wound adhesion, but has poor ability to promote wound healing. Because the liquid secreted by the wound surface can not permeate the rubberized fabric layer, the traditional wound dressing is easy to cause the soaking of local skin, so that the wound and the surrounding skin are whitened and even rotten. Modern wound dressing has avoided the drawback of traditional wound dressing to a great extent, not only can carry out comprehensive protection to the wound, can promote wound healing moreover.
CN 207323621U discloses a novel foam dressing, novel foam dressing includes isolation layer, absorbed layer and protective layer, the absorbed layer comprises the foam of single face concave-convex shape and corresponding carrier medicine. The medical dressing of the utility model has the functions of the traditional foam dressing, and simultaneously, the dressing removal is easier, the work of medical staff is reduced, and the secondary injury of the wound is avoided; however, the concave and convex surface of the foam dressing may cause secondary damage to the wound.
CN 206950272U discloses antiseized even negative pressure drainage protect wound sponge dressing, including sponge layer and antiseized membrane, antiseized membrane is the mesh form structure of fretwork, avoids sponge dressing and wound adhesion in the treatment process, alleviates the misery when patient removes sponge dressing. However, the dressing is thick and has poor breathability.
therefore, the foam dressing with good air permeability and mild property is provided for wound hemostasis, and has important significance in the technical field of medicines.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a foam dressing with medicine slowly-releasing function, foam dressing gas permeability is good, has medicine slowly-releasing effect, can avoid in the treatment process with the wound adhesion, biodegradability is good.
to achieve the purpose, the utility model adopts the following technical proposal:
in a first aspect, the utility model provides a foam dressing with drug slow release function, which comprises a first protective layer 1, a foam layer 2, a slow release layer 3 and a second protective layer 4 which are sequentially adhered from top to bottom;
the slow release layer 3 is provided with meshes 5;
the mesh 5 is oval.
The utility model discloses in, through setting up slowly-releasing layer 3, not only realized the medicine slow-release in the foam blanket, alleviateed the medicine to the direct stimulation of wound and skin, avoided the adhesion of wound with the foam dressing moreover, reduced the secondary damage of foam dressing to the wound.
the utility model discloses set up oval mesh on slowly-releasing layer 3, compare with circular, when oval semiminor axis is the same with circular shape radius, oval-shaped area is bigger, oval mesh structure has not only reached the slowly-releasing effect, has adjusted medicine release speed moreover, has improved the slowly-releasing efficiency of medicine.
preferably, the cross section of the foam layer 2 is smaller than the cross section of the first protective layer 1.
preferably, the cross-section of the slow-release layer 3 is not smaller than the cross-section of the foam layer 2.
the utility model discloses in, foam blanket 2 and the 3 parcels of slowly-releasing layer are between first protective layer 1 and second protective layer 4.
Preferably, the material of the first protective layer 1 is polylactic acid.
the utility model discloses in, adopt polylactic acid to prepare first protective layer 1, improved the biodegradability of foam dressing.
Preferably, said first protective layer 1 is coated and/or mixed with glue.
In the utility model, the viscose of coating and/or sneaking in on the first protective layer 1 is used for being fixed in the wound with the foam dressing.
preferably, the thickness of the foam layer 2 is 0.1-1mm, and may be, for example, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1 mm.
preferably, the foam layer 2 is coated and/or mixed with a hemostatic agent.
Preferably, the thickness of the sustained-release layer 3 is 0.01 to 0.1mm, and may be, for example, 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, or 0.1 mm.
Preferably, the minor axis of the mesh 5 is 0.5-20 μm, and may be, for example, 0.5 μm, 0.6 μm, 0.7 μm, 0.8 μm, 0.9 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, 19 μm or 20 μm, preferably 1-10 μm.
preferably, the ratio of the pore area of the mesh 5 to the area of the slow release layer 3 is (1.5-2: 1), and may be, for example, 1.5:1, 1.6:1, 1.7:1, 1.8:1, 1.9:1, or 2: 1.
preferably, the material of the second protective layer 4 is polyvinyl chloride or release paper.
In a specific embodiment, the utility model provides a foam dressing with drug slow-release function, which comprises a first protective layer 1, a foam layer 2, a slow-release layer 3 and a second protective layer 4 which are sequentially adhered from top to bottom;
The slow release layer 3 is provided with meshes 5;
the cross section of the foam layer 2 is smaller than that of the first protective layer 1;
The cross section of the slow release layer 3 is not smaller than that of the foam layer 2;
the first protective layer 1 is made of polylactic acid;
the first protective layer 1 is coated with and/or mixed with viscose;
the thickness of the foam layer 2 is 0.1-1 mm;
the foam layer 2 is coated with and/or mixed with a hemostatic agent;
the thickness of the slow release layer 3 is 0.01-0.1 mm;
The meshes 5 are oval;
the short axis of the mesh 5 is 1-20 μm;
the ratio of the pore area of the mesh 5 to the area of the slow release layer 3 is (1.5-2) to 1;
the second protective layer 4 is made of polyvinyl chloride or release paper.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the foam dressing of the utility model is provided with the slow release layer, which not only realizes the slow release of the medicine in the foam layer, lightens the direct stimulation of the medicine to the wound and the skin, but also avoids the adhesion of the wound and the foam dressing, and reduces the secondary damage of the foam dressing to the wound;
(2) the foam dressing of the utility model is provided with the oval meshes on the slow release layer, thereby not only achieving the slow release effect, but also adjusting the drug release speed and improving the slow release efficiency of the drug;
(3) The utility model discloses a foam dressing hemostasis ability reinforce can not cause the secondary damage to the wound, and biodegradability is good, and is friendly to the environment.
Drawings
fig. 1 is a side view of a foam dressing, wherein 1-a first protective layer, 2-a foam layer, 3-a slow release layer, 4-a second protective layer, 5-a mesh.
Detailed Description
to further illustrate the technical means and effects of the present invention, the present invention will be further described with reference to the following embodiments and accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention.
the examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications. The reagents or apparatus used are conventional products commercially available from normal sources, not indicated by the manufacturer.
Example 1
a side view of the foam dressing of this embodiment is shown in figure 1.
The foam dressing comprises a first protective layer 1, a foam layer 2, a slow release layer 3 and a second protective layer 4 which are sequentially adhered from top to bottom;
The slow release layer 3 is provided with meshes 5;
the cross section of the foam layer 2 is smaller than that of the first protective layer 1;
the cross section of the slow release layer 3 is not smaller than that of the foam layer 2;
the first protective layer 1 is made of polylactic acid;
the first protective layer 1 is coated with and/or mixed with viscose;
The thickness of the foam layer 2 is 0.1 mm;
the foam layer 2 is coated with and/or mixed with a hemostatic agent;
The thickness of the slow release layer 3 is 0.01 mm;
the meshes 5 are oval;
The short axis of the mesh 5 is 1 μm;
the ratio of the pore area of the mesh 5 to the area of the slow release layer 3 is 1.5: 1;
the second protective layer 4 is made of polyvinyl chloride or release paper.
example 2
the foam dressing comprises a first protective layer 1, a foam layer 2, a slow release layer 3 and a second protective layer 4 which are sequentially adhered from top to bottom;
the slow release layer 3 is provided with meshes 5;
the cross section of the foam layer 2 is smaller than that of the first protective layer 1;
the cross section of the slow release layer 3 is not smaller than that of the foam layer 2;
The first protective layer 1 is made of polylactic acid;
The first protective layer 1 is coated with and/or mixed with viscose;
The thickness of the foam layer 2 is 1 mm;
The foam layer 2 is coated with and/or mixed with a hemostatic agent;
The thickness of the slow release layer 3 is 0.1 mm;
the meshes 5 are oval;
The short axis of the mesh 5 is 20 mu m;
The ratio of the hole area of the mesh 5 to the area of the slow release layer 3 is 2: 1;
the second protective layer 4 is made of polyvinyl chloride or release paper.
Example 3
The foam dressing comprises a first protective layer 1, a foam layer 2, a slow release layer 3 and a second protective layer 4 which are sequentially adhered from top to bottom;
The slow release layer 3 is provided with meshes 5;
the cross section of the foam layer 2 is smaller than that of the first protective layer 1;
The cross section of the slow release layer 3 is not smaller than that of the foam layer 2;
the first protective layer 1 is made of polylactic acid;
The first protective layer 1 is coated with and/or mixed with viscose;
The thickness of the foam layer 2 is 0.5 mm;
The foam layer 2 is coated with and/or mixed with a hemostatic agent;
the thickness of the slow release layer 3 is 0.05 mm;
the meshes 5 are oval;
The short axis of the mesh 5 is 10 mu m;
the ratio of the pore area of the mesh 5 to the area of the slow release layer 3 is 1.8: 1;
the second protective layer 4 is made of polyvinyl chloride or release paper.
example 4
The foam dressing comprises a first protective layer 1, a foam layer 2, a slow release layer 3 and a second protective layer 4 which are sequentially adhered from top to bottom;
The slow release layer 3 is provided with meshes 5;
The cross section of the foam layer 2 is smaller than that of the first protective layer 1;
The cross section of the slow release layer 3 is not smaller than that of the foam layer 2;
the first protective layer 1 is made of polylactic acid;
The first protective layer 1 is coated with and/or mixed with viscose;
the thickness of the foam layer 2 is 0.8 mm;
The foam layer 2 is coated with and/or mixed with a hemostatic agent;
The thickness of the slow release layer 3 is 0.08 mm;
The meshes 5 are oval;
the short axis of the mesh 5 is 15 mu m;
the ratio of the pore area of the mesh 5 to the area of the slow release layer 3 is 1.6: 1;
The second protective layer 4 is made of polyvinyl chloride or release paper.
Example 5
the foam dressing comprises a first protective layer 1, a foam layer 2, a slow release layer 3 and a second protective layer 4 which are sequentially adhered from top to bottom;
the slow release layer 3 is provided with meshes 5;
the cross section of the foam layer 2 is smaller than that of the first protective layer 1;
The cross section of the slow release layer 3 is not smaller than that of the foam layer 2;
The first protective layer 1 is made of polylactic acid;
the first protective layer 1 is coated with and/or mixed with viscose;
The thickness of the foam layer 2 is 0.2 mm;
the foam layer 2 is coated with and/or mixed with a hemostatic agent;
the thickness of the slow release layer 3 is 0.02 mm;
the meshes 5 are oval;
the short axis of the mesh 5 is 5 μm;
The ratio of the pore area of the mesh 5 to the area of the slow release layer 3 is 1.7: 1;
the second protective layer 4 is made of polyvinyl chloride or release paper.
to sum up, the utility model discloses a foam dressing has not only realized the medicine slow-release in the foam blanket through setting up the slowly-releasing layer, has alleviateed the medicine to the direct stimulation of wound and skin, has avoided the adhesion of wound with the foam dressing moreover, has reduced the secondary damage of foam dressing to the wound, through set up oval mesh on the slowly-releasing layer, has not only reached the slowly-releasing effect, has adjusted medicine release rate moreover, has improved the slowly-releasing efficiency of medicine, the foam dressing hemostatic ability is strong, can not cause the secondary damage to the wound, and biodegradability is good, and is friendly to the environment.
The applicant states that the present invention is described in detail by the above embodiments, but the present invention is not limited to the above detailed method, i.e. the present invention is not meant to be implemented by relying on the above detailed method. It should be clear to those skilled in the art that any improvement of the present invention, to the equivalent replacement of each raw material of the present invention, the addition of auxiliary components, the selection of specific modes, etc., all fall within the protection scope and disclosure scope of the present invention.
Claims (9)
1. the foam dressing with the drug slow-release function is characterized by comprising a first protective layer (1), a foam layer (2), a slow-release layer (3) and a second protective layer (4) which are sequentially adhered from top to bottom;
The foam layer (2) is coated with and/or mixed with a hemostatic agent;
the slow release layer (3) is provided with meshes (5);
the meshes (5) are oval;
the short axis of the mesh (5) is 0.5-20 μm.
2. The foam dressing according to claim 1, characterized in that the cross section of the foam layer (2) is smaller than the cross section of the first protective layer (1).
3. The foam dressing according to claim 1, characterized in that the cross section of the slow-release layer (3) is not smaller than the cross section of the foam layer (2).
4. The foam dressing according to claim 1, characterized in that the material of the first protective layer (1) is polylactic acid;
the first protective layer (1) is coated with and/or mixed with viscose.
5. Foam dressing according to claim 1, characterized in that the thickness of the foam layer (2) is 0.1-1 mm.
6. the foam dressing according to claim 1, characterized in that the thickness of the slow-release layer (3) is 0.01-0.1 mm.
7. The foam dressing according to claim 1, characterized in that the minor axis of the mesh (5) is 1-10 μm.
8. the foam dressing according to claim 1, characterized in that the ratio of the pore area of the mesh (5) to the area of the slow-release layer (3) is (1.5-2): 1.
9. The foam dressing according to claim 1, characterized in that the material of the second protective layer (4) is polyvinyl chloride or release paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821838845.8U CN209751375U (en) | 2018-11-08 | 2018-11-08 | foam dressing with medicine slow-release function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821838845.8U CN209751375U (en) | 2018-11-08 | 2018-11-08 | foam dressing with medicine slow-release function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209751375U true CN209751375U (en) | 2019-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821838845.8U Active CN209751375U (en) | 2018-11-08 | 2018-11-08 | foam dressing with medicine slow-release function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209751375U (en) |
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2018
- 2018-11-08 CN CN201821838845.8U patent/CN209751375U/en active Active
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