CN113577375A - Medical sterile foam dressing and preparation method thereof - Google Patents
Medical sterile foam dressing and preparation method thereof Download PDFInfo
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- CN113577375A CN113577375A CN202110906785.9A CN202110906785A CN113577375A CN 113577375 A CN113577375 A CN 113577375A CN 202110906785 A CN202110906785 A CN 202110906785A CN 113577375 A CN113577375 A CN 113577375A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0009—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
- A61L26/0019—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0004—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing inorganic materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0057—Ingredients of undetermined constitution or reaction products thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0061—Use of materials characterised by their function or physical properties
- A61L26/0085—Porous materials, e.g. foams or sponges
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/30—Compounds of undetermined constitution extracted from natural sources, e.g. Aloe Vera
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/412—Tissue-regenerating or healing or proliferative agents
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Abstract
The invention discloses a medical sterile foam dressing which comprises purified water, waterborne polyurethane prepolymer, a foam stabilizer, a catalyst, an antibacterial agent, honey essence, olive oil, metal powder, an angelica dahurica extract and a foaming agent in parts by weight: 300 parts of purified water, 50-70 parts of waterborne polyurethane prepolymer, 20-30 parts of foam stabilizer, 10-15 parts of catalyst, 10-20 parts of antibacterial agent, 15-20 parts of honey essence, 15-20 parts of olive oil, 5-10 parts of metal powder, 3-7 parts of radix angelicae extract and 5-8 parts of foaming agent, wherein the ratio of the purified water to the foam stabilizer is 10:1, the ratio of the honey essence to the olive oil is 1:1, and the foam stabilizer is organic silicon foam stabilizer. The invention can reduce the condition of bacteria attached to the foam dressing, can also play roles in alleviating edema and promoting cell growth, can also reduce the condition of scars after wound healing, prevents the beauty of skin from being affected by the scars after wound healing, and improves the use effect of the sterile foam dressing.
Description
Technical Field
The invention relates to the technical field of foam dressings, in particular to a medical sterile foam dressing and a preparation method thereof.
Background
The foam dressing can reduce the risk of wound adhesion and promote wound healing. However, most of the existing foam dressings at present still have some problems, for example, the polyurethane foam dressing mentioned in chinese patent CN108079362A can shorten the time for wound healing, but the production work in a sterile working room is not performed in the production process, bacteria may be attached during final packaging, which affects the use effect of the foam dressing, and meanwhile, the patent does not have other effects while healing wounds, is poor in functionality, and cannot meet the requirements of people, so that a medical sterile foam dressing and a preparation method thereof are provided for solving the situation.
Disclosure of Invention
The invention aims to provide a medical sterile foam dressing and a preparation method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
preferably, the cleaning agent comprises purified water, a waterborne polyurethane prepolymer, a foam stabilizer, a catalyst, an antibacterial agent, honey essence, olive oil, metal powder and an angelica dahurica extract, and the weight ratio is as follows:
300 parts of purified water 200, 50-70 parts of waterborne polyurethane prepolymer, 20-30 parts of foam stabilizer, 10-15 parts of catalyst, 10-20 parts of antibacterial agent, 15-20 parts of honey essence, 15-20 parts of olive oil, 5-10 parts of metal powder, 3-7 parts of radix angelicae extract and 5-8 parts of foaming agent.
Preferably, the ratio of the purified water to the foam stabilizer is 10:1, the ratio of the honey essence to the olive oil is 1:1, and the ratio of the purified water to the foam stabilizer is 10:1, so that the influence of excessive addition of the foam stabilizer on the use effect of the produced foam dressing is avoided.
Preferably, the foam stabilizer is a silicone foam stabilizer, and the metal powder is a mixture of copper powder and aluminum powder.
Preferably, the method comprises the following steps:
s1: pouring purified water into the first stirring box, pouring the honey essence and the olive oil into the second stirring box for stirring, and fully blending the honey essence and the olive oil through stirring to improve the using effect of the honey essence and the olive oil;
s2: the purified water in the first stirring box is heated by the heater, so that the purified water can reach a certain temperature quickly, the reaction effect of the purified water and other substances can be improved, and convenience is brought to the next mixing and stirring to a certain extent;
s3: pouring the waterborne polyurethane prepolymer, the foam stabilizer, the catalyst, the antibacterial agent and the metal powder into a first stirring box to be mixed with purified water, stirring for the first time by using an electric stirrer, heating the first stirring box at the same time, and then pouring the honey essence and the olive oil into a second stirring box to be stirred for the second time;
s4: transferring the stirred solution to a sterile room, adding the radix Angelicae Dahuricae extract into the solution, and stirring with an electric stirrer;
s5: adding the foaming agent into the stirred solution after the radix angelicae extract is added, stirring the solution by using a stirrer at the stirring speed of 380 revolutions per minute for 3-5 minutes, and heating the solution while stirring at the heating temperature of 60 ℃;
s6: pouring the finally stirred solution into a foaming mould, drying at the high temperature of 85-100 ℃ for 3-5 minutes, and then demoulding and slicing;
s7: and (5) disinfecting the sliced foam dressing to finally obtain the medical sterile foam dressing.
Preferably, the heating temperature in the step S2 is 80-90 ℃, and the heating time is 10-12 minutes.
Preferably, in the step S3, the time of the first stirring is 10 to 15 minutes, the stirring speed of the electric stirrer is 300 revolutions per minute, the temperature during heating is 50 ℃, the time of the second stirring is 5 to 7 minutes, and the stirring speed is 220 revolutions per minute.
Preferably, the stirring time in S4 is 7 to 10 minutes, and the stirring speed of the electric stirrer is 160 rpm.
Compared with the prior art, the invention has the beneficial effects that:
the invention can reduce the occurrence of bacteria by using the purified water, avoid the occurrence of bacteria breeding when other water is used for stirring, is favorable for improving the production efficiency of the sterile foam dressing, greatly reduces the occurrence of bacteria attached to the foam dressing by matching with the antibacterial agent and carrying out the final production step in a sterile room, meanwhile, the honey essence and the olive oil are matched for use, so that the effects of reducing edema and promoting cell growth can be achieved, the time for wound healing is reduced, the pain of a patient is relieved, the mood of the patient is improved, and finally the skin-beautifying and wrinkle-reducing effects are achieved by matching with the radix angelicae extract, the wound healing agent can accelerate wound healing, reduce the scar after wound healing, prevent scars after wound healing from influencing the aesthetic feeling of skin, and improve the using effect of the sterile foam dressing to a certain extent.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a medical sterile foam dressing comprises purified water, waterborne polyurethane prepolymer, a foam stabilizer, a catalyst, an antibacterial agent, honey essence, olive oil, metal powder, an angelica dahurica extract and a foaming agent, and the weight ratio of the medical sterile foam dressing is as follows: 200 parts of purified water, 50 parts of waterborne polyurethane prepolymer, 20 parts of foam stabilizer, 10 parts of catalyst, 10 parts of antibacterial agent, 15 parts of honey essence, 15 parts of olive oil, 5 parts of metal powder, 3 parts of angelica dahurica extract and 5 parts of foaming agent, wherein the ratio of the purified water to the foam stabilizer is 10:1, the ratio of the honey essence to the olive oil is 1:1, and the honey essence and the olive oil are arranged in the same ratio to achieve the effects of facilitating the fusion of the honey essence and the olive oil and improving the production efficiency of the foam dressing, wherein the foam stabilizer is an organic silicon foam stabilizer, and the metal powder is a mixture of copper powder and aluminum powder.
A preparation method of a medical sterile foam dressing comprises the following steps:
s1: pouring purified water into a first stirring box, and pouring honey essence and olive oil into a second stirring box for stirring;
s2: the purified water in the first stirring box is heated by the heater, so that the temperature of the purified water is increased, the purified water can better react with other materials when materials are added subsequently, and the working efficiency is improved to a certain extent;
s3: pouring the waterborne polyurethane prepolymer, the foam stabilizer, the catalyst, the antibacterial agent and the metal powder into a first stirring box to be mixed with purified water, stirring for the first time by using an electric stirrer, heating the first stirring box, then pouring the honey essence and the olive oil into a second stirring box to be stirred for the second time, and adding the antibacterial agent has the effects of improving the antibacterial effect of the foam dressing and reducing the occurrence of bacteria in the produced foam dressing;
s4: transferring the stirred solution to a sterile room, adding the radix angelicae extract into the solution, stirring by using an electric stirrer, wherein the radix angelicae extract has the effects of increasing the fragrance of the foam dressing, whitening the skin, increasing the functionality of the foam dressing to a certain extent and improving the using effect of the foam dressing;
s5: adding the foaming agent into the stirred solution added with the angelica dahurica extract, stirring the solution by using a stirrer at the stirring speed of 380 revolutions per minute for 3-5 minutes, heating the solution while stirring at the heating temperature of 60 ℃, wherein the foaming agent is added to facilitate the solution to generate foam, facilitate the next work and improve the using effect of the foam dressing to a certain extent;
s6: pouring the finally stirred solution into a foaming mould, drying at the high temperature of 85-100 ℃ for 3-5 minutes, then demoulding and slicing, and killing bacteria at the high temperature to eliminate the bacteria in the solution and prevent the produced foam dressing from having bacteria;
s7: the foam dressing after will cutting into slices carries out disinfection work, reachs medical aseptic foam dressing at last, through carrying out disinfection work at last, has significantly reduced the condition that the foam dressing exists the bacterium to a certain extent.
The honey essence and the olive oil in the S1 are stirred for 5-10 minutes, the heating temperature in the S2 is 80-90 ℃, the heating time is 10-12 minutes, the primary stirring time in the S3 is 10-15 minutes, the stirring speed of an electric stirrer is 300 revolutions per minute, the heating temperature is 50 ℃, the secondary stirring time is 5-7 minutes, the stirring speed is 220 revolutions per minute, the stirring time in the S4 is 7-10 minutes, and the stirring speed of the electric stirrer is 160 revolutions per minute.
Example two: a medical sterile foam dressing comprises purified water, waterborne polyurethane prepolymer, a foam stabilizer, a catalyst, an antibacterial agent, honey essence, olive oil, metal powder, an angelica dahurica extract and a foaming agent, and the weight ratio of the medical sterile foam dressing is as follows: 250 parts of purified water, 60 parts of waterborne polyurethane prepolymer, 25 parts of foam stabilizer, 13 parts of catalyst, 15 parts of antibacterial agent, 17 parts of honey essence, 17 parts of olive oil, 7 parts of metal powder, 5 parts of radix angelicae extract and 7 parts of foaming agent, wherein the ratio of the purified water to the foam stabilizer is 10:1, the ratio of the honey essence to the olive oil is 1:1, and the honey essence and the olive oil are arranged in the same ratio to achieve the effects of facilitating the fusion of the honey essence and the olive oil and improving the production efficiency of the foam dressing, wherein the foam stabilizer is an organic silicon foam stabilizer, and the metal powder is a mixture of copper powder and aluminum powder.
A preparation method of a medical sterile foam dressing comprises the following steps:
s1: pouring purified water into a first stirring box, and pouring honey essence and olive oil into a second stirring box for stirring;
s2: the purified water in the first stirring box is heated by the heater, so that the temperature of the purified water is increased, the purified water can better react with other materials when materials are added subsequently, and the working efficiency is improved to a certain extent;
s3: pouring the waterborne polyurethane prepolymer, the foam stabilizer, the catalyst, the antibacterial agent and the metal powder into a first stirring box to be mixed with purified water, stirring for the first time by using an electric stirrer, heating the first stirring box, then pouring the honey essence and the olive oil into a second stirring box to be stirred for the second time, and adding the antibacterial agent has the effects of improving the antibacterial effect of the foam dressing and reducing the occurrence of bacteria in the produced foam dressing;
s4: transferring the stirred solution to a sterile room, adding the radix angelicae extract into the solution, stirring by using an electric stirrer, wherein the radix angelicae extract has the effects of increasing the fragrance of the foam dressing, whitening the skin, increasing the functionality of the foam dressing to a certain extent and improving the using effect of the foam dressing;
s5: adding the foaming agent into the stirred solution added with the angelica dahurica extract, stirring the solution by using a stirrer at the stirring speed of 380 revolutions per minute for 3-5 minutes, heating the solution while stirring at the heating temperature of 60 ℃, wherein the foaming agent is added to facilitate the solution to generate foam, facilitate the next work and improve the using effect of the foam dressing to a certain extent;
s6: pouring the finally stirred solution into a foaming mould, drying at the high temperature of 85-100 ℃ for 3-5 minutes, then demoulding and slicing, and killing bacteria at the high temperature to eliminate the bacteria in the solution and prevent the produced foam dressing from having bacteria;
s7: the foam dressing after will cutting into slices carries out disinfection work, reachs medical aseptic foam dressing at last, through carrying out disinfection work at last, has significantly reduced the condition that the foam dressing exists the bacterium to a certain extent.
The honey essence and the olive oil in the S1 are stirred for 5-10 minutes, the heating temperature in the S2 is 80-90 ℃, the heating time is 10-12 minutes, the primary stirring time in the S3 is 10-15 minutes, the stirring speed of an electric stirrer is 300 revolutions per minute, the heating temperature is 50 ℃, the secondary stirring time is 5-7 minutes, the stirring speed is 220 revolutions per minute, the stirring time in the S4 is 7-10 minutes, and the stirring speed of the electric stirrer is 160 revolutions per minute.
Example three: a medical sterile foam dressing comprises purified water, waterborne polyurethane prepolymer, a foam stabilizer, a catalyst, an antibacterial agent, honey essence, olive oil, metal powder, an angelica dahurica extract and a foaming agent, and the weight ratio of the medical sterile foam dressing is as follows: 300 parts of purified water, 70 parts of waterborne polyurethane prepolymer, 30 parts of foam stabilizer, 15 parts of catalyst, 20 parts of antibacterial agent, 20 parts of honey essence, 20 parts of olive oil, 10 parts of metal powder, 5 parts of radix angelicae extract and 8 parts of foaming agent, wherein the ratio of the purified water to the foam stabilizer is 10:1, the ratio of the honey essence to the olive oil is 1:1, and the honey essence and the olive oil are arranged in the same ratio to achieve the effects of facilitating the fusion of the honey essence and the olive oil and improving the production efficiency of the foam dressing, wherein the foam stabilizer is an organic silicon foam stabilizer, and the metal powder is a mixture of copper powder and aluminum powder.
A preparation method of a medical sterile foam dressing comprises the following steps:
s1: pouring purified water into a first stirring box, and pouring honey essence and olive oil into a second stirring box for stirring;
s2: the purified water in the first stirring box is heated by the heater, so that the temperature of the purified water is increased, the purified water can better react with other materials when materials are added subsequently, and the working efficiency is improved to a certain extent;
s3: pouring the waterborne polyurethane prepolymer, the foam stabilizer, the catalyst, the antibacterial agent and the metal powder into a first stirring box to be mixed with purified water, stirring for the first time by using an electric stirrer, heating the first stirring box, then pouring the honey essence and the olive oil into a second stirring box to be stirred for the second time, and adding the antibacterial agent has the effects of improving the antibacterial effect of the foam dressing and reducing the occurrence of bacteria in the produced foam dressing;
s4: transferring the stirred solution to a sterile room, adding the radix angelicae extract into the solution, stirring by using an electric stirrer, wherein the radix angelicae extract has the effects of increasing the fragrance of the foam dressing, whitening the skin, increasing the functionality of the foam dressing to a certain extent and improving the using effect of the foam dressing;
s5: adding the foaming agent into the stirred solution added with the angelica dahurica extract, stirring the solution by using a stirrer at the stirring speed of 380 revolutions per minute for 3-5 minutes, heating the solution while stirring at the heating temperature of 60 ℃, wherein the foaming agent is added to facilitate the solution to generate foam, facilitate the next work and improve the using effect of the foam dressing to a certain extent;
s6: pouring the finally stirred solution into a foaming mould, drying at the high temperature of 85-100 ℃ for 3-5 minutes, then demoulding and slicing, and killing bacteria at the high temperature to eliminate the bacteria in the solution and prevent the produced foam dressing from having bacteria;
s7: the foam dressing after will cutting into slices carries out disinfection work, reachs medical aseptic foam dressing at last, through carrying out disinfection work at last, has significantly reduced the condition that the foam dressing exists the bacterium to a certain extent.
The honey essence and the olive oil in the S1 are stirred for 5-10 minutes, the heating temperature in the S2 is 80-90 ℃, the heating time is 10-12 minutes, the primary stirring time in the S3 is 10-15 minutes, the stirring speed of an electric stirrer is 300 revolutions per minute, the heating temperature is 50 ℃, the secondary stirring time is 5-7 minutes, the stirring speed is 220 revolutions per minute, the stirring time in the S4 is 7-10 minutes, and the stirring speed of the electric stirrer is 160 revolutions per minute.
And (4) judging the standard:
the invention can reduce the occurrence of bacteria by using the purified water, avoid the occurrence of bacteria breeding when other water is used for stirring, is favorable for improving the production efficiency of the sterile foam dressing, greatly reduces the occurrence of bacteria attached to the foam dressing by matching with the antibacterial agent and carrying out the final production step in a sterile room, meanwhile, the honey essence and the olive oil are matched for use, so that the effects of reducing edema and promoting cell growth can be achieved, the time for wound healing is reduced, the pain of a patient is relieved, the mood of the patient is improved, and finally the skin-beautifying and wrinkle-reducing effects are achieved by matching with the radix angelicae extract, the wound healing agent can accelerate wound healing, reduce the scar after wound healing, prevent scars after wound healing from influencing the aesthetic feeling of skin, and improve the using effect of the sterile foam dressing to a certain extent.
The experimental method comprises the following steps:
firstly, purified water is pumped into a first stirring box to be stirred, the purified water is heated while stirring, the heating temperature is 80 ℃, the stirring time is 15 minutes, simultaneously honey essence and olive oil are poured into another container to be stirred, the stirring time is 5 minutes, then 50 parts of waterborne polyurethane prepolymer, 20 parts of foam stabilizer, 10 parts of catalyst, 10 parts of antibacterial agent and 5 parts of metal powder are sequentially added into the stirred purified water, the mixture is heated, the heating temperature is 50 ℃, the mixture is stirred for about 15 minutes, then the stirred honey essence and olive oil solution are slowly poured into the mixture and are stirred simultaneously, after stirring for 5 minutes, the solution is transferred into a sterile room, then angelica dahurica extract is added into the stirred solution, the stirring is carried out, the stirring time is 7 minutes, and then adding a foaming agent into the stirred solution, stirring for 3 minutes, heating the solution while stirring at the heating temperature of 60 ℃, pouring the solution into a foaming mould after stirring, then performing high-temperature drying at the drying temperature of 100 ℃ for 3 minutes, then performing demoulding operation on the dried dressing, then performing slicing operation on the dressing, finally performing disinfection treatment on the sliced dressing, and then packaging for later use.
Claims (8)
1. A medical sterile foam dressing is characterized in that: the foaming agent comprises purified water, waterborne polyurethane prepolymer, a foam stabilizer, a catalyst, an antibacterial agent, honey essence, olive oil, metal powder, an angelica dahurica extract and a foaming agent, and the weight ratio is as follows:
300 parts of purified water 200, 50-70 parts of waterborne polyurethane prepolymer, 20-30 parts of foam stabilizer, 10-15 parts of catalyst, 10-20 parts of antibacterial agent, 15-20 parts of honey essence, 15-20 parts of olive oil, 5-10 parts of metal powder, 3-7 parts of radix angelicae extract and 5-8 parts of foaming agent.
2. A sterile foam dressing for medical use according to claim 1, wherein: the ratio of the purified water to the foam stabilizer is 10:1, and the ratio of the honey essence to the olive oil is 1: 1.
3. A sterile foam dressing for medical use according to claim 1, wherein: the foam stabilizer is an organic silicon foam stabilizer, and the metal powder is a mixture of copper powder and aluminum powder.
4. A preparation method of medical sterile foam dressing is characterized by comprising the following steps: the method comprises the following steps:
s1: pouring purified water into a first stirring box, and pouring honey essence and olive oil into a second stirring box for stirring;
s2: heating the purified water in the first stirring tank by using a heater;
s3: pouring the waterborne polyurethane prepolymer, the foam stabilizer, the catalyst, the antibacterial agent and the metal powder into a first stirring box to be mixed with purified water, stirring for the first time by using an electric stirrer, heating the first stirring box at the same time, and then pouring the honey essence and the olive oil into a second stirring box to be stirred for the second time;
s4: transferring the stirred solution to a sterile room, adding the radix Angelicae Dahuricae extract into the solution, and stirring with an electric stirrer;
s5: adding the foaming agent into the stirred solution after the radix angelicae extract is added, stirring the solution by using a stirrer at the stirring speed of 380 revolutions per minute for 3-5 minutes, and heating the solution while stirring at the heating temperature of 60-80 ℃;
s6: pouring the finally stirred solution into a foaming mould, drying at the high temperature of 85-100 ℃ for 3-5 minutes, and then demoulding and slicing;
s7: and (5) disinfecting the sliced foam dressing to finally obtain the medical sterile foam dressing.
5. The method for preparing a medical sterile foam dressing according to claim 4, wherein the method comprises the following steps: and the honey essence and the olive oil in the S1 are stirred for 5-10 minutes.
6. The method for preparing a medical sterile foam dressing according to claim 4, wherein the method comprises the following steps: the heating temperature in the S2 is 80-90 ℃, and the heating time is 10-12 minutes.
7. The method for preparing a medical sterile foam dressing according to claim 4, wherein the method comprises the following steps: in the step S3, the primary stirring time is 10-15 minutes, the stirring speed of the electric stirrer is 300 revolutions per minute, the heating temperature is 50 ℃, the secondary stirring time is 5-7 minutes, and the stirring speed is 220 revolutions per minute.
8. The method for preparing a medical sterile foam dressing according to claim 4, wherein the method comprises the following steps: and the stirring time in the step S4 is 7-10 minutes, and the stirring speed of the electric stirrer is 160 revolutions per minute.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041388A (en) * | 2021-04-02 | 2021-06-29 | 南昌智产科技有限公司 | Foam dressing for nursing skin ulcer and preparation process thereof |
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Application publication date: 20211102 |