CN113041388A - Foam dressing for nursing skin ulcer and preparation process thereof - Google Patents
Foam dressing for nursing skin ulcer and preparation process thereof Download PDFInfo
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- CN113041388A CN113041388A CN202110359378.0A CN202110359378A CN113041388A CN 113041388 A CN113041388 A CN 113041388A CN 202110359378 A CN202110359378 A CN 202110359378A CN 113041388 A CN113041388 A CN 113041388A
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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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives 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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
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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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/425—Porous materials, e.g. foams or sponges
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Materials For Medical Uses (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a foam dressing for nursing skin ulcer and a preparation process thereof, and relates to the technical field of medical nursing. The foam dressing for nursing skin ulcer is composed of polyisocyanate, polyester polyol, a catalyst, a chain extender, a physical foaming agent, a flame retardant, a release agent, water and a white colorant; the weight portion ratio is as follows: 80-100 parts of polyisocyanate, 60-80 parts of polyester polyol, 4-8 parts of catalyst, 4-8 parts of chain extender, 2-6 parts of physical foaming agent, 4-8 parts of flame retardant, 4-8 parts of release agent, 40-50 parts of water and 10-14 parts of white colorant. The foam dressing for nursing skin ulcer is prepared from polyisocyanate and polyester polyol as main materials, a catalyst, a chain extender, a physical foaming agent, a flame retardant, a release agent, water and a white coloring agent as dressings through a preparation process, and the medical dressing prepared from the high polymer material has the advantages of proper size, high flexibility, good hygroscopicity and anti-infection property, and can reduce the use of natural resources.
Description
Technical Field
The invention relates to the technical field of medical care, in particular to a foam dressing for nursing skin ulcer and a preparation process thereof.
Background
The dressing is an article for covering wounds and is used for covering sores, wounds or other damaged medical materials, the traditional dressing mainly comprises dry gauze and oily gauze, the dressing has certain defects in the using process and is easy to cause bacterial breeding, scab skin is formed along with tissue fluid and skin, pain is caused when the wounds are changed with medicines, the dressing such as the dry gauze and the oily gauze is easy to shift due to the movement of limbs in the using process, friction is caused between the wounds and the dressing, the wounds are broken and bleeding is caused, and the ventilation of the wounds can be influenced in the using process of the traditional dressing, and the healing of the wounds can be influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the foam dressing for nursing skin ulcer and the preparation process thereof, the prepared foam dressing for nursing skin ulcer has the advantages of high flexibility, good air permeability, capability of ensuring that a wound is in a moist state, accelerating the recovery of the wound, reducing the offset and the like, and solves the problems that the existing partial skin ulcer dressing has poor air permeability, is easy to offset in the using process and the like.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a foam dressing for nursing skin ulcer is composed of polyisocyanate, polyester polyol, catalyst, chain extender, physical foaming agent, flame retardant, release agent, water and white colorant; the weight portion ratio is as follows: 80-100 parts of polyisocyanate, 60-80 parts of polyester polyol, 4-8 parts of catalyst, 4-8 parts of chain extender, 2-6 parts of physical foaming agent, 4-8 parts of flame retardant, 4-8 parts of release agent, 40-50 parts of water and 10-14 parts of white colorant.
Preferably, the catalyst is one or more of diether, stannous octoate, triethylene diamine, N-dimethyl cyclohexylamine and potassium carboxylate.
Preferably, the chain extender is one or more than two of 1, 4-butanediol, 1, 6-hexanediol, glycerol, trimethylolpropane, diethylene glycol, triethylene glycol, neopentyl glycol, sorbitol, diethylaminoethanol, ethylenediamine, N-dihydroxy and aniline.
Preferably, the physical foaming agent is one or more of aliphatic, pentane, hexane, decane, monochloromethane, dichloromethane, trichlorofluoromethane and dichlorodifluoromethane.
Preferably, the flame retardant is one or more than two of antimony trioxide, magnesium hydroxide and aluminum hydroxide.
Preferably, the release agent is one or more than two of talcum powder, mica powder, argil and white clay.
A foam dressing for treating skin ulcers, comprising the steps of:
s1, color adding: pouring warm water and white colorant in a certain proportion into a stirring tank, and stirring and mixing the mixture by a stirrer for 4-6 minutes.
S2, pre-stirring: sequentially pouring polyisocyanate, polyester polyol, a chain extender, a flame retardant and a release agent into a stirring tank in S1 according to a certain proportion, sealing the stirring tank, stirring the substances in the tank by a stirrer, and stirring for 10-14 minutes.
S3, total stirring: and (3) uniformly stirring the substances in the stirring tank in the step (S2), pouring the catalyst and the physical foaming agent into the stirring tank according to a certain proportion, stirring the substances in the tank by using a stirrer, and stirring for 6-10 minutes.
S4, shaping: pumping the mixed substance in the S3 into a forming box by a material pump to ensure that the depth of the mixture in the forming box is 4-6 decimeters, and naturally drying and shaping at room temperature.
S5, molding: and cutting the foam board formed by air drying in the S4 into foam dressing with proper size by using a cutting device.
S6, packaging: one side of the foam dressing in the S5 is bonded with the center of the adhesive paper, so that a user can fix and attach the auxiliary material to the wound without other adhesive articles such as bandages when using the adhesive paper, the release paper covers the foam dressing and the adhesive paper, the foam dressing and the adhesive paper are packaged by a packaging bag and a packaging machine, and the packaged foam dressing is put into a sterilization and disinfection device for disinfection for 5-10 minutes.
Preferably, in the S3, during the stirring process in the stirring tank, the tank is heated by a heater, and the heating temperature is 50 ℃ to 80 ℃.
Preferably, in S5, the foam dressing is cut into a circle with a radius of 3 cm.
Preferably, in S1, S2 and S3, the rotation speed of the stirrer is 600-800 r/min.
Compared with the prior art, the invention has the beneficial effects that:
the foam dressing for nursing skin ulcer and the preparation process thereof, polyisocyanate and polyester polyol are used as main materials, white foam dressing with proper size, high flexibility, good hygroscopicity and anti-infection property is formed by using a catalyst, a chain extender, a physical foaming agent, a flame retardant, a mold release agent, water and a white colorant as dressings through the preparation process, the bleeding condition of a wound can be conveniently observed through dyeing of the white colorant, whether the wound is healed or not is judged, the medical dressing processed by the high polymer material can also reduce the use of natural resources, such as pure cotton like gauze and the like, the fund used in large range of hospitals and the like is reduced, wound seepage can be absorbed, wound secretion is reduced, and by the matching use of wound liquid medicine, a slightly acid, oxygen-free or low-oxygen and moderate-moist wound environment can be formed, and the release of growth factors is promoted, the wound healing agent has the advantages that the cell proliferation is stimulated, the regeneration capacity and the cell movement of epidermal cells are improved, the wound healing is promoted, the adhesion between dressing and wound granulation tissue can be reduced, the secondary mechanical injury during replacement can not be caused, the environment and microorganisms can be blocked, the harmful bacteria propagation is effectively inhibited, the chance of contacting bacteria and the wound surface is reduced, the dressing replacement frequency is reduced, the labor intensity of nursing personnel is reduced, the cost is saved, the infection of the wound is reduced, the human tissue proliferation and the wound repair are facilitated, the wound healing agent further reduces the scar formation due to no stimulation and damage to the wound surface, can effectively relieve the wound pressure, reduces the bedsore incidence rate of bedridden patients, is convenient to use, and good in compliance, and can be suitable for all parts of a body.
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 foam dressing for nursing skin ulcer is composed of polyisocyanate, polyester polyol, catalyst, chain extender, physical foaming agent, flame retardant, release agent, water and white colorant; the weight portion ratio is as follows: 80 parts of polyisocyanate, 60 parts of polyester polyol, 4 parts of catalyst, 4 parts of chain extender, 2 parts of physical foaming agent, 4 parts of flame retardant, 4 parts of release agent, 40 parts of water and 10 parts of white colorant, wherein the catalyst is one or more than two of diether, stannous octoate, triethylene diamine, N-dimethyl cyclohexylamine and potassium carboxylate, the chain extender is one or more than two of 1, 4-butanediol, 1, 6-hexanediol, glycerol, trimethylolpropane, diethylene glycol, triethylene glycol, neopentyl glycol, sorbitol, diethylaminoethanol, ethylenediamine, N-dihydroxy and aniline, the physical foaming agent is one or more than two of aliphatic series, pentane, hexane, decane, chloromethane, dichloromethane, trichloromonofluoromethane and dichlorodifluoromethane, the flame retardant is one or more than two of antimonous oxide, magnesium hydroxide and aluminum hydroxide, the release agent is one or more than two of talcum powder, mica powder, argil and white clay.
A foam dressing for treating skin ulcers, comprising the steps of:
s1, color adding: pouring warm water and white colorant in a certain proportion into a stirring tank, and stirring and mixing the warm water and the white colorant by a stirrer for 4 minutes; s2, pre-stirring: sequentially pouring polyisocyanate, polyester polyol, a chain extender, a flame retardant and a release agent into a stirring tank in S1 according to a certain proportion, sealing the stirring tank, stirring the substances in the tank by a stirrer, and stirring for 10 minutes; s3, total stirring: uniformly stirring the substances in the stirring tank in the step S2, pouring the catalyst and the physical foaming agent into the stirring tank according to a certain proportion, stirring the substances in the tank by using a stirrer, and stirring for 6 minutes;
s4, shaping: pumping the mixed substance in the S3 into a forming box through a material pump to ensure that the depth of the mixture in the forming box is 4 decimeters, and naturally drying and shaping the mixture at room temperature; s5, molding: cutting the foam board formed by air drying in the S4 through a cutting device, and cutting the foam board into foam dressing with proper size; s6, packaging: one side of the foam dressing in the S5 is adhered to the center of the adhesive paper, so that a user can conveniently use the foam dressing without fixing and adhering auxiliary materials to a wound through other adhesive articles such as bandages, the release paper covers the foam dressing and the adhesive paper, the foam dressing and the adhesive paper are packaged through a packaging bag and a packaging machine, the packaged foam dressing is placed into a sterilization and disinfection device for disinfection, the disinfection time is 5 minutes, in S3, in the stirring process in a stirring tank, the tank is heated through a heater, the heating temperature is 50 ℃, in S5, the foam dressing is cut into a circle, the radius of the foam dressing is 3 centimeters, in S1, S2 and S3, and the rotation speed of a stirrer is 600 r/min.
Example two:
a foam dressing for nursing skin ulcer is composed of polyisocyanate, polyester polyol, catalyst, chain extender, physical foaming agent, flame retardant, release agent, water and white colorant; the weight portion ratio is as follows: 90 parts of polyisocyanate, 70 parts of polyester polyol, 6 parts of catalyst, 6 parts of chain extender, 4 parts of physical foaming agent, 6 parts of flame retardant, 6 parts of release agent, 450 parts of water and 12 parts of white colorant, wherein the catalyst is one or more than two of diether, stannous octoate, triethylene diamine, N-dimethyl cyclohexylamine and potassium carboxylate, the chain extender is one or more than two of 1, 4-butanediol, 1, 6-hexanediol, glycerol, trimethylolpropane, diethylene glycol, triethylene glycol, neopentyl glycol, sorbitol, diethylaminoethanol, ethylenediamine, N-dihydroxy and aniline, the physical foaming agent is one or more than two of aliphatic series, pentane, hexane, decane, chloromethane, dichloromethane, trichloromonofluoromethane and dichlorodifluoromethane, the flame retardant is one or more than two of antimonous oxide, magnesium hydroxide and aluminum hydroxide, the release agent is one or more than two of talcum powder, mica powder, argil and white clay.
A foam dressing for treating skin ulcers, comprising the steps of:
s1, color adding: pouring warm water and white colorant in a certain proportion into a stirring tank, and stirring and mixing the warm water and the white colorant by a stirrer for 5 minutes; s2, pre-stirring: sequentially pouring polyisocyanate, polyester polyol, a chain extender, a flame retardant and a release agent into a stirring tank in S1 according to a certain proportion, sealing the stirring tank, stirring the substances in the tank by a stirrer, and stirring for 12 minutes; s3, total stirring: uniformly stirring the substances in the stirring tank in the S2, pouring the catalyst and the physical foaming agent into the stirring tank according to a certain proportion, stirring the substances in the tank by using a stirrer, and stirring for 8 minutes;
s4, shaping: pumping the mixed substance in the S3 into a forming box through a material pump to ensure that the depth of the mixture in the forming box is 5 decimeters, and naturally drying and shaping the mixture at room temperature; s5, molding: cutting the foam board formed by air drying in the S4 through a cutting device, and cutting the foam board into foam dressing with proper size; s6, packaging: one side of the foam dressing in the S5 is adhered to the center of the adhesive paper, so that a user can conveniently and fixedly attach the auxiliary materials to the wound without other adhesive articles such as bandages when using the adhesive paper, the release paper covers the foam dressing and the adhesive paper, the foam dressing and the adhesive paper are packaged through a packaging bag and a packaging machine, the packaged foam dressing is placed into a sterilization and disinfection device for disinfection, the disinfection time is 7.5 minutes, in S3, in the stirring process in a stirring tank, the tank needs to be heated through a heater, the heating temperature is 65 ℃, in S5, the foam dressing is cut into a circle, the radius of the foam dressing is 3 centimeters, and in S1, S2 and S3, the rotation speed of a stirrer is 700 r/min.
Example three:
a foam dressing for nursing skin ulcer is composed of polyisocyanate, polyester polyol, catalyst, chain extender, physical foaming agent, flame retardant, release agent, water and white colorant; the weight portion ratio is as follows: 100 parts of polyisocyanate, 80 parts of polyester polyol, 8 parts of catalyst, 8 parts of chain extender, 6 parts of physical foaming agent, 8 parts of flame retardant, 8 parts of release agent, 50 parts of water and 14 parts of white colorant, wherein the catalyst is one or more than two of diether, stannous octoate, triethylene diamine, N-dimethyl cyclohexylamine and potassium carboxylate, the chain extender is one or more than two of 1, 4-butanediol, 1, 6-hexanediol, glycerol, trimethylolpropane, diethylene glycol, triethylene glycol, neopentyl glycol, sorbitol, diethylaminoethanol, ethylenediamine, N-dihydroxy and aniline, the physical foaming agent is one or more than two of aliphatic series, pentane, hexane, decane, chloromethane, dichloromethane, trichloromonofluoromethane and dichlorodifluoromethane, the flame retardant is one or more than two of antimonous oxide, magnesium hydroxide and aluminum hydroxide, the release agent is one or more than two of talcum powder, mica powder, argil and white clay.
A foam dressing for treating skin ulcers, comprising the steps of:
s1, color adding: pouring warm water and white colorant in a certain proportion into a stirring tank, and stirring and mixing the warm water and the white colorant by a stirrer for 6 minutes; s2, pre-stirring: sequentially pouring polyisocyanate, polyester polyol, a chain extender, a flame retardant and a release agent into a stirring tank in S1 according to a certain proportion, sealing the stirring tank, stirring the substances in the tank by a stirrer, and stirring for 14 minutes; s3, total stirring: uniformly stirring the substances in the stirring tank in the step S2, pouring the catalyst and the physical foaming agent into the stirring tank according to a certain proportion, stirring the substances in the tank by using a stirrer, and stirring for 10 minutes;
s4, shaping: pumping the mixed substance in the S3 into a forming box through a material pump to ensure that the depth of the mixture in the forming box is 6 decimeters, and naturally drying and shaping the mixture at room temperature; s5, molding: cutting the foam board formed by air drying in the S4 through a cutting device, and cutting the foam board into foam dressing with proper size; s6, packaging: one side of the foam dressing in the S5 is adhered to the center of the adhesive paper, so that a user can conveniently use the adhesive paper without fixing and adhering auxiliary materials to a wound through other adhesive articles such as bandages, the release paper covers the foam dressing and the adhesive paper, the foam dressing and the adhesive paper are packaged through a packaging bag and a packaging machine, the packaged foam dressing is placed into a sterilization and disinfection device for disinfection, the disinfection time is 10 minutes, in S3, in the stirring process in a stirring tank, the tank is heated through a heater, the heating temperature is 80 ℃, in S5, the foam dressing is cut into a circle, the radius of the foam dressing is 3 centimeters, in S1, S2 and S3, and the rotation speed of a stirrer is 800 r/min.
It can be seen from this that: the foam dressing for nursing skin ulcer and the preparation process thereof are characterized in that polyisocyanate and polyester polyol are used as main materials, and a catalyst, a chain extender, a physical foaming agent, a flame retardant, a release agent, water and a white colorant are used as the dressing, so that the foam dressing with proper size, high flexibility, good hygroscopicity and anti-infection property is formed by the preparation process, the use of natural resources can be reduced, the use of pure cotton such as gauze can be reduced, the fund for large-scale use in hospitals and the like can be reduced, the wound seepage can be absorbed, the wound secretion can be reduced, and the micro-acid can be formed by matching the wound liquid medicine, The wound environment is anaerobic or hypoxic and moderately moist, growth factor release is promoted, cell proliferation is stimulated, the regeneration capacity and cell movement of epidermal cells are improved, wound healing is promoted, adhesion between dressing and wound granulation tissue can be reduced, secondary mechanical damage during replacement can not be caused, environment and microorganisms can be separated, harmful bacteria propagation is effectively inhibited, the chance of bacteria contacting with a wound surface is reduced, the dressing replacement frequency is reduced, the labor intensity of nursing personnel is reduced, cost is saved, wound infection is reduced, human tissue proliferation and wound repair are facilitated, scar formation is further reduced due to no stimulation and damage to the wound surface, wound surface pressure can be effectively relieved, the incidence rate of bedsores of bedridden patients is reduced, the wound environment is convenient to use and good in compliance, and the wound environment can be suitable for all parts of a body.
Claims (10)
1. A foam dressing for treating skin ulcers, characterized by: the polyurethane foaming agent consists of polyisocyanate, polyester polyol, a catalyst, a chain extender, a physical foaming agent, a flame retardant, a release agent, water and a white coloring agent; the weight portion ratio is as follows: 80-100 parts of polyisocyanate, 60-80 parts of polyester polyol, 4-8 parts of catalyst, 4-8 parts of chain extender, 2-6 parts of physical foaming agent, 4-8 parts of flame retardant, 4-8 parts of release agent, 40-50 parts of water and 10-14 parts of white colorant.
2. A skin ulcer care foam dressing as claimed in claim 1, wherein: the catalyst is one or more than two of diether, stannous octoate, triethylene diamine, N-dimethyl cyclohexylamine and potassium carboxylate.
3. A skin ulcer care foam dressing as claimed in claim 1, wherein: the chain extender is one or more than two of 1, 4-butanediol, 1, 6-hexanediol, glycerol, trimethylolpropane, diethylene glycol, triethylene glycol, neopentyl glycol, sorbitol, diethylaminoethanol, ethylenediamine, N-dihydroxy and aniline.
4. A skin ulcer care foam dressing as claimed in claim 1, wherein: the physical foaming agent is one or more than two of aliphatic, pentane, hexane, decane, monochloromethane, dichloromethane, trichlorofluoromethane and dichlorodifluoromethane.
5. A skin ulcer care foam dressing as claimed in claim 1, wherein: the flame retardant is one or more than two of antimony trioxide, magnesium hydroxide and aluminum hydroxide.
6. A skin ulcer care foam dressing as claimed in claim 1, wherein: the release agent is one or more than two of talcum powder, mica powder, argil and white clay.
7. A preparation process of a foam dressing for nursing skin ulcer is characterized by comprising the following steps: the method comprises the following steps:
s1, color adding: pouring warm water and white colorant in a certain proportion into a stirring tank, and stirring and mixing the mixture by a stirrer for 4-6 minutes.
S2, pre-stirring: sequentially pouring polyisocyanate, polyester polyol, a chain extender, a flame retardant and a release agent into a stirring tank in S1 according to a certain proportion, sealing the stirring tank, stirring the substances in the tank by a stirrer, and stirring for 10-14 minutes.
S3, total stirring: and (3) uniformly stirring the substances in the stirring tank in the step (S2), pouring the catalyst and the physical foaming agent into the stirring tank according to a certain proportion, stirring the substances in the tank by using a stirrer, and stirring for 6-10 minutes.
S4, shaping: pumping the mixed substance in the S3 into a forming box by a material pump to ensure that the depth of the mixture in the forming box is 4-6 decimeters, and naturally drying and shaping at room temperature.
S5, molding: and cutting the foam board formed by air drying in the S4 into foam dressing with proper size by using a cutting device.
S6, packaging: and (3) adhering one surface of the foam dressing in the step S5 to the center of the adhesive paper, covering the release paper on the foam dressing and the adhesive paper, packaging the foam dressing and the adhesive paper through a packaging bag and a packaging machine, and sterilizing the packaged foam dressing in a sterilization and disinfection device for 5-10 minutes.
8. The process for preparing a foam dressing for treating skin ulcer according to claim 7, wherein: in the step S3, in the stirring process in the stirring tank, the tank needs to be heated by a heater, and the heating temperature is 50 ℃ to 80 ℃.
9. The process for preparing a foam dressing for treating skin ulcer according to claim 7, wherein: in S5, the foam dressing is cut into a circle with a radius of 3 cm.
10. The process for preparing a foam dressing for treating skin ulcer according to claim 7, wherein: in the S1, S2 and S3, the rotation speed of the stirrer is 600-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359378.0A CN113041388A (en) | 2021-04-02 | 2021-04-02 | Foam dressing for nursing skin ulcer and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359378.0A CN113041388A (en) | 2021-04-02 | 2021-04-02 | Foam dressing for nursing skin ulcer and preparation process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113041388A true CN113041388A (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110359378.0A Pending CN113041388A (en) | 2021-04-02 | 2021-04-02 | Foam dressing for nursing skin ulcer and preparation process thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070161936A1 (en) * | 2006-01-06 | 2007-07-12 | Svetlik Harvey E | Wound treatment-dressing and method of manufacture |
| CN103189026A (en) * | 2010-08-19 | 2013-07-03 | 保罗·哈特曼公司 | Use of a polyurethane foam as a wound dressing in negative pressure therapy |
| CN111363186A (en) * | 2018-12-25 | 2020-07-03 | 万华化学集团股份有限公司 | Polyurethane foam material, preparation method thereof and application thereof in wound dressing |
| CN113577375A (en) * | 2021-08-09 | 2021-11-02 | 南昌智产科技有限公司 | Medical sterile foam dressing and preparation method thereof |
-
2021
- 2021-04-02 CN CN202110359378.0A patent/CN113041388A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070161936A1 (en) * | 2006-01-06 | 2007-07-12 | Svetlik Harvey E | Wound treatment-dressing and method of manufacture |
| CN103189026A (en) * | 2010-08-19 | 2013-07-03 | 保罗·哈特曼公司 | Use of a polyurethane foam as a wound dressing in negative pressure therapy |
| CN111363186A (en) * | 2018-12-25 | 2020-07-03 | 万华化学集团股份有限公司 | Polyurethane foam material, preparation method thereof and application thereof in wound dressing |
| CN113577375A (en) * | 2021-08-09 | 2021-11-02 | 南昌智产科技有限公司 | Medical sterile foam dressing and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 李俊贤主编: "《塑料工业手册 聚氨酯》", 31 July 1999, 北京：化学工业出版社 * |
| 钱立军等: "《高分子材料》", 31 July 2020, 北京：中国轻工业出版社 * |
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