CN212490402U - Micro-negative pressure wound exudate absorption dressing based on composition of various high polymer materials - Google Patents
Micro-negative pressure wound exudate absorption dressing based on composition of various high polymer materials Download PDFInfo
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- CN212490402U CN212490402U CN202020588469.2U CN202020588469U CN212490402U CN 212490402 U CN212490402 U CN 212490402U CN 202020588469 U CN202020588469 U CN 202020588469U CN 212490402 U CN212490402 U CN 212490402U
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Abstract
The utility model discloses a dressing is absorbed to little negative pressure wound sepage based on multiple macromolecular material is constituteed and production technology, its characterized in that: the wound dressing mainly comprises an air leakage prevention protective film (1), a water absorption and storage layer (2), an air-permeable and water-impermeable film (3) and a wound contact layer (4) from top to bottom, wherein a super absorbent is contained in the water absorption and storage layer (2). The utility model relates to a dressing is absorbed to little negative pressure wound sepage can provide suitable moist environment for the wound, accelerates wound healing.
Description
Technical Field
The utility model relates to a medical supplies, more specifically relates to a dressing that little negative pressure wound exudate was absorbed based on multiple macromolecular material is constituteed and production technology thereof.
Background
After people are injured, wound dressing is used for wound care. It is known that a great amount of exudate exists in the wound healing process, and how to maintain a proper moist environment of the wound and avoid excessive exudate is very important for wound healing. Many problems follow when the wound exudate is too much or too little, or the exudate contains harmful components, and the wound healing is eventually delayed. The micro-negative pressure wound exudate absorption dressing can create a proper humid environment for a wound through self regulation function, and simultaneously forms a micro-negative pressure state to accelerate wound healing. The traditional wound dressing can not achieve the effect at present. The materials and functions can be divided into the following three types: 1. inert dressing: has the advantages of wound surface protection, absorbability, simple preparation and low price; 2. double-acting dressing: the dressing can promote wound healing by using the local environment caused by the dressing and has stronger absorption function. For example, an absorbent film made of a polyurethane material, or a three-dimensional network water-absorbent polymer composed of gelatin, polysaccharide, a multi-dielectric composite and methacrylic resin, or a porous foam composed of polyurethane and polyoxyethylene glycol. 3. The bioactive dressing comprises the following components: the combined dressing prepared by processing the high polymer material and the biological material by a high and new technology method has a double-layer structure, and the high polymer material is applied to the outer layer, thereby providing a barrier function equivalent to epidermis; the inner layer is mainly made of collagen, chitosan and calcium alginate, and has biocompatibility, good water absorption, air permeability, adhesiveness, antibacterial and hemostatic effects.
Although conventional dressings can protect wounds and promote wound healing to various degrees, the healing effect is often poor due to poor control of exudate during the healing process of the wound.
Therefore, at present, a dressing capable of automatically adjusting exudate is urgently needed, and meanwhile, as the water absorption layer in the dressing contains a super-absorbent, a large amount of moisture can be absorbed, and a material for storing wound water vapor is matched with a breathable impermeable membrane, so that a micro-negative pressure state can be created for a wound, the wound is in a reasonable moist environment, and the wound healing is accelerated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned defect that prior art exists, provide a dressing is absorbed to little negative pressure wound sepage, provide suitable moist environment for the wound through the dressing.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a micro-negative pressure wound exudate absorption dressing based on a plurality of high polymer materials is characterized by mainly comprising an air leakage prevention protective film (1), a water absorption and storage layer (2), an air and water permeable film (3) and a wound contact layer (4) from top to bottom in sequence; the water absorbing and storing layer (2) is internally provided with a super absorbent.
Preferably, the air leakage prevention protective film is a water-permeable but air-impermeable film such as a PU film, i.e. capable of ensuring the dryness and air tightness of the skin.
Preferably, the water absorption and storage layer is an efficient gelatinization layer prepared by high-molecular water-absorbent resin.
Preferably, in practical application, the surface of the water absorption and storage layer can be coated with a fluorescent color-developing line which changes color when meeting water, and the water absorption and storage layer is replaced in time when being saturated, so that the wound is ensured to be in a proper humid environment, and the wound healing is accelerated.
Preferably, the gas-permeable and water-impermeable membrane is a POE or EPTFE membrane.
Preferably, the wound protection layer is composed of alginate, hydrogel, silicone material, etc., and a pad made of nano silver ion material can also be used.
A preparation method of a micro-negative pressure wound exudate absorption dressing based on a plurality of high polymer materials is carried out in a closed dry environment.
The air leakage prevention protective film of the dressing has good sealing with the skin of a patient.
According to the above technical scheme, the utility model discloses beneficial effect has:
(1) the wound protective layer absorbs wound exudate after contacting with the wound, maintains a moist environment, is beneficial to accelerating the wound healing process, and relieves the pain of the patient during replacement.
(2) In the process of exudation of wound exudate, due to the principle of humidity balance in the dressing, water vapor can permeate the breathable impermeable membrane to be absorbed by the water absorbing and storing layer, the state can be continued until the water absorbing and storing layer is saturated, the absorbed water amount can be controlled by adjusting the water absorbing capacity of the water absorbing and storing layer, and the wound can be matched with the breathable impermeable membrane in the process to be in a micro-negative pressure state.
(3) The air-permeable and water-impermeable film ensures the permeability of water vapor and isolates liquid at the same time, so that the wound exudate and the water absorbed by the water absorbing and storing layer can not be communicated with each other.
(4) The air leakage prevention protective film has the effects of dust prevention, water prevention, air leakage prevention and pollution prevention.
(5) The wound protection layer can be made of alginate, hydrocolloid and other materials, and a protection pad coated with nano silver ions can be used to enhance the dressing effect.
(6) The water absorbing and storing layer can be coated with fluorescent color-developing lines changing when meeting water, and can be replaced in time when the water absorbing and storing layer is saturated, so that the wound is ensured to be in a proper humid environment, and the wound healing is accelerated.
Therefore, the utility model has the obvious characteristics.
Drawings
For a clearer explanation of the invention, the drawings which are necessary for the embodiment will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained on the basis of these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a micro-negative pressure wound exudate absorption dressing based on a plurality of polymer materials provided by the present invention;
in the figure, an air leakage prevention protective film (1), a water absorption and storage layer (2), an air and water permeable film (3) and a wound contact layer (4).
FIG. 2 is a schematic view of the water absorption and storage layer (2) and a fluorescence developing line
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
In the following detailed description of the embodiments of the present invention, for the sake of clarity of the structure of the present invention, it is to be understood that the structure shown in the drawings is not drawn to scale, and is partially enlarged, deformed and simplified, and therefore the present invention is not limited thereto.
Examples
As shown in figure 1, the micro-negative pressure wound exudate absorption dressing based on the composition of a plurality of high polymer materials is characterized by mainly comprising an air leakage prevention protective film (1), a water absorption and storage layer (2), an air-permeable and water-impermeable film (3) and a wound contact layer (4) from top to bottom in sequence. Medical glue is coated on the air leakage prevention protective film (1) and is used for being stuck on skin to realize fixation and sealing of dressing, and the air leakage prevention protective film has the effects of dust prevention, water prevention, air leakage prevention and pollution prevention.
The water absorbing and storing layer (2) is internally provided with the super absorbent, the water absorbing and storing layer only allows water vapor to permeate through the air-permeable and water-impermeable film (3), so that moisture is slowly absorbed to maintain a reasonable moist environment of a wound, and meanwhile, the water absorbing and storing layer is composed of the super absorbent and always keeps a moisture absorbing state, so that a micro-negative pressure state can be maintained in the dressing, and the wound healing can be accelerated. The super absorbent is used for absorbing water, and the amount of the super absorbent is determined according to the amount of wound exudate.
The wound contact layer (4) absorbs wound secretions. The wound contact layer (4) is in direct contact with the skin, so that the wound surface is protected, and the pain of a patient is relieved as much as possible when the patient is uncovered.
The air leakage prevention protective film (1) of the dressing is firmly adhered to skin through an adhesive, so that the wound is guaranteed to be airtight, and a certain micro negative pressure is formed.
As shown in figure 2, the water absorbing and storing layer (2) contains super absorbent as high-efficiency gelling layer, and the high-efficiency gelling layer is coated with fluorescent color-developing lines which change color when meeting water, so that the saturation degree of liquid can be displayed, and the dressing can be conveniently and timely replaced.
When in use, the dressing is covered on a wound, and the air leakage prevention protective film (1) is adhered to the skin to ensure air leakage prevention.
The above, only be the present invention in the preferred embodiment of the wound dressing field, the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical scope of the present invention, and the technical solution and the concept of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A micro-negative pressure wound exudate absorption dressing based on a plurality of high polymer materials is characterized by mainly comprising an air leakage prevention protective film (1), a water absorption and storage layer (2), an air and water permeable film (3) and a wound contact layer (4) from top to bottom in sequence; the water absorbing and storing layer (2) contains super absorbent, and the air-permeable and water-impermeable film (3) can freely pass through liquid and cannot pass through water vapor, so that the humidity of the surface of a wound is balanced.
2. The wound exudate absorption dressing based on micro negative pressure composed of multiple high polymer materials as claimed in claim 1, wherein the water absorption and storage layer (2) contains super absorbent, which can absorb a large amount of water, store the wound water vapor, ensure the moist environment of the wound, and simultaneously, the high-efficiency water absorption function of the dressing is matched with the air-permeable and water-impermeable membrane (3) to form the state of micro negative pressure on the wound surface.
3. The micro-negative pressure wound exudate absorption dressing consisting of a plurality of high polymer materials according to claim 1, characterized in that the water absorption and storage layer (2) contains super absorbent, is of a sheet structure, can absorb a large amount of water, is coated with a fluorescent color development line which changes color when meeting water, can display the saturation degree of liquid, and is convenient for timely dressing change.
4. The wound fluid absorption dressing based on micro negative pressure composed of multiple high polymer materials of claim 1, wherein the air leakage prevention protective film (1) is coated with medical adhesive and used for being adhered to skin, and has the effects of dust prevention, water prevention, air leakage prevention and pollution prevention, and meanwhile, the sealing is good, a micro negative pressure environment can be formed in the dressing, and the medical adhesive is also coated at the bonding part of the edge and the skin, so that the sealing performance of the whole dressing is ensured to form the micro negative pressure environment.
5. The wound exudate absorption dressing based on multiple polymer materials with micro negative pressure as claimed in claim 1, wherein the air-permeable and water-impermeable membrane (3) can prevent liquid but allow water vapor to pass through, so as to prevent the liquid absorbed in the water storage layer (2) from flowing back to the wound, and simultaneously maintain the moist environment of the wound after the wound exudate is rapidly absorbed.
6. The micro-negative pressure wound exudate absorbing dressing based on multiple polymer materials of claim 1, wherein the wound contact layer (4) is prepared from a water absorbent pad or alginate with a silicon-containing material as a coating, hydrocolloid, and nano silver ion materials.
7. The micro-negative pressure wound exudate absorption dressing consisting of a plurality of polymer materials according to claim 1, wherein the dressing is prepared and then is sealed and stored by a water-impermeable and air-impermeable package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020588469.2U CN212490402U (en) | 2020-04-20 | 2020-04-20 | Micro-negative pressure wound exudate absorption dressing based on composition of various high polymer materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020588469.2U CN212490402U (en) | 2020-04-20 | 2020-04-20 | Micro-negative pressure wound exudate absorption dressing based on composition of various high polymer materials |
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| CN212490402U true CN212490402U (en) | 2021-02-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111329659A (en) * | 2020-04-20 | 2020-06-26 | 郑岩 | Micro-negative pressure wound exudate absorption dressing based on composition of various high polymer materials |
| CN115040321A (en) * | 2022-08-17 | 2022-09-13 | 上海大博医疗科技有限公司 | Portable dressing |
-
2020
- 2020-04-20 CN CN202020588469.2U patent/CN212490402U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111329659A (en) * | 2020-04-20 | 2020-06-26 | 郑岩 | Micro-negative pressure wound exudate absorption dressing based on composition of various high polymer materials |
| CN115040321A (en) * | 2022-08-17 | 2022-09-13 | 上海大博医疗科技有限公司 | Portable dressing |
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Effective date of registration: 20211119 Address after: 610000 room 2401, floor 24, building 1, No. 69, Tianfu Third Street, hi tech Zone, Chengdu, Sichuan Patentee after: Youbainuo (Chengdu) Biotechnology Co.,Ltd. Address before: No.3 Huangjing Road, xihanggang street, Shuangliu District, Chengdu, Sichuan 610000 Patentee before: Zheng Yan |
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