CN108283725A - A kind of preparation method carrying Types of Medicine wound dressing - Google Patents
A kind of preparation method carrying Types of Medicine wound dressing Download PDFInfo
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- CN108283725A CN108283725A CN201810179779.6A CN201810179779A CN108283725A CN 108283725 A CN108283725 A CN 108283725A CN 201810179779 A CN201810179779 A CN 201810179779A CN 108283725 A CN108283725 A CN 108283725A
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- Prior art keywords
- polyurethane
- wound dressing
- film
- particle
- types
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Classifications
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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
-
- 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
- A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
-
- 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
- A61L15/44—Medicaments
-
- 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
-
- 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
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
-
- 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
- A61L2300/418—Agents promoting blood coagulation, blood-clotting agents, embolising agents
-
- 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
- A61L2300/45—Mixtures of two or more drugs, e.g. synergistic mixtures
Abstract
The invention discloses a kind of preparation methods carrying Types of Medicine wound dressing.The present invention is mainly that polyurethane hydrogel particle, thermoplastic polyurethane particle, solvent are added in reactor, and heating stirring makes polyurethane hydrogel particle and thermoplastic polyurethane particle be completely dissolved in solvent, and polyurethane solutions are obtained after cooling；Yunnan Baiyao powder is added, solidliquid mixture, and vacuum defoaming are uniformly mixing to obtain；By solidliquid mixture even application in release paper, release paper is immersed in deionized water, waits for that solidliquid mixture is fully cured film forming and is placed in 50 DEG C of drying boxes, release paper is removed after cooling to get immobilized Yunnan Baiyao film；Immobilized Yunnan Baiyao film is soaked in 3h in Japanses beauty-berry grass extracting solution, then carries out vacuum freeze drying and obtains dual drug-loading film；Film is cut into appropriate size according to practical application request, and is pasted on medical non-woven fabrics gauze, is i.e. product.Raw material of the present invention is easy to get, equipment is simple, product energy dissipate stasis of blood hemostasis, swelling and pain relieving, antibacterial anti-inflammatory.
Description
Technical field
The invention belongs to organic composite material technical fields, and in particular to a kind of preparation method carrying Types of Medicine wound dressing.
Background technology
Wound dressing is a kind of medical supplies bound up a wound, and by flap coverage to realize protection, promotes wound healing.
Traditional wound dressing is mainly based on gauze, absorbent cotton and synthetic fibers etc..Meanwhile the shortcomings that traditional wound dressing, is also ten clearly demarcated
It is aobvious：Easily cause infection；Wound fluid can not be absorbed, and incrustation rate is slowed down；Dressing is easy and surface of a wound adhesion, during dressing
It is easy to cause secondary injury.Therefore, traditional wound dressing gradually cannot be satisfied clinical requirement.Novel wound dressing not only needs pair
The surface of a wound provides protection, it is also necessary to can absorb wound fluid, keep surface of a wound moistening, prevent trauma surface infestation, hemostasis and anti-inflammation from promoting
Wound healing.With the development of modern medical techniques and the continuous development of material technology, novel wound dressing is gradually by extensive
Concern.
Invention content
The purpose of the present invention is to provide a kind of raw materials to be easy to get, equipment simply carries the preparation method of Types of Medicine wound dressing.
The method of the present invention includes following steps in sequence：
(1) by dry polyurethane hydrogel particle, thermoplastic polyurethane particle, solvent according to 10~18:25~42:
120 weight ratio is added in reactor, is heated to 50~80 DEG C and stirs to make polyurethane hydrogel particle and thermoplastic polyurethane
Particle is completely dissolved in solvent, and after being cooled to room temperature, polyurethane solutions are made；
(2) in polyurethane solutions obtained by step (1), dry Yunnan Baiyao powder, polyurethane solutions and Yunnan is added
The weight ratio of baiyao powder is 155~180:40~60, and it is uniformly mixing to obtain solidliquid mixture using high speed agitator, and subtract
Pressure defoaming 0.5h；
(3) then release paper is immersed into deionized water by solidliquid mixture even application obtained by step (2) in release paper
In, wait for that solidliquid mixture is fully cured film forming and is placed on 1~2h in 50 DEG C of drying boxes, after cooling remove release paper to get to
Immobilized Yunnan Baiyao film；
(4) immobilized Yunnan Baiyao film made from step (3) is soaked in 3h in Japanses beauty-berry grass extracting solution, then carries out vacuum refrigeration
It is dried to obtain dual drug-loading film；
(5) dual drug-loading film is cut by appropriate size according to practical application request, and is pasted on medical non-woven fabrics gauze
On to get to a kind of load Types of Medicine wound dressing.
Preferably, step (1) the polyurethane hydrogel particle is nonionic polyurethane hydrogel particle.
Preferably, the thermoplastic polyurethane particle described in step (1) is polyether polyurethane particle, and shore hardness is
50A or 60A.
Preferably, the solvent of step (1) is one kind in n,N-Dimethylformamide and n,N-dimethylacetamide.
Preferably, the Yunnan Baiyao powder of step (2) is the brown ceramic powder that fineness is 500~2000 mesh.
Preferably, in solidliquid mixture obtained in step (2), polyurethane hydrogel, thermoplastic polyurethane, solvent,
The weight percent of Yunnan Baiyao powder is：Polyurethane hydrogel accounts for 4.7%~8.9%, and thermoplastic polyurethane accounts for 11.6%~
19.8%, solvent accounts for 55.8%~61.5%, and Yunnan Baiyao powder accounts for 18.9%~28.0%.
Preferably, the weight percent of Japanses beauty-berry grass extracting solution is in step (4)：Japanses beauty-berry grass extract component accounts for 5.0~
10.0%, deionized water accounts for 90.0~95.0%.
Preferably, dual drug-loading film outward appearance obtained by step (5) is yellow, by being coated on release paper in regulating step (3)
On solidliquid mixture thickness control dual drug-loading film thickness between 0.42~0.52mm.
Wound dressing prepared by the method for the present invention has the following advantages that compared with traditional wound dressing：
The load Types of Medicine wound dressing of the present invention, Yunnan Baiyao powder content is high, therefore the wound dressing has Yunnan Baiyao
Invigorating circulation of blood to dissipate blood stasis and reducing swelling and relieving pain and other effects；Meanwhile dual drug-loading film has also adsorbed a large amount of active material in Japanses beauty-berry grass extracting solution,
So the wound dressing is also with the dissipate stasis of blood hemostasis of Japanses beauty-berry grass, swelling and pain relieving, antibacterial anti-inflammatory and other effects.
Specific implementation mode
Below by specific embodiment, the present invention is described in further detail, wherein the raw material is medical
Grade product, equipment are the production equipment of general industry.
Embodiment 1：
Weigh 18 kilograms of nonionic polyurethane hydrogel particles, the thermoplastic polyurethane that 25 kilograms of shore hardnesses are 50A
Particle, 120 kilograms of n,N-Dimethylformamide are placed in reactor, be heated to 50 DEG C and stir make polyurethane hydrogel particle and
Thermoplastic polyurethane particle is completely dissolved, and obtains polyurethane solutions after cooling；40 kilogram of 500 mesh Yunnan Baiyao powder is added,
It is uniformly mixing to obtain solidliquid mixture by high speed agitator；Solidliquid mixture is applied rapidly after carrying out 0.5h vacuum defoaming processing
It spreads in release paper, then immerses release paper in deionized water, film forming to be solidified is placed in drying box, in 50 DEG C of dryings
1h removes release paper to get to immobilized Yunnan Baiyao film after cooling；Immobilized Yunnan Baiyao film is immersed into Japanses beauty-berry grass extracting solution
3h in (Japanses beauty-berry grass extractive content is 5.0%), then carry out vacuum freeze drying and obtain dual drug-loading film；It is coated on by adjusting
The thickness of solidliquid mixture thickness control dual drug-loading film in release paper is 0.42mm；According to practical application request by dual load
Medicine film is cut into appropriate size, and dual drug-loading film is pasted on medical non-woven fabrics gauze and is applied to get to a kind of load Types of Medicine wound
Material.
In the present embodiment, the weight percentage of nonionic polyurethane hydrogel is 8.9% in gained solidliquid mixture,
The weight percentage of thermoplastic polyurethane is 12.3%, and the weight percentage of n,N-Dimethylformamide is 59.1%, cloud
The weight percentage of southern baiyao powder is 19.7%.Obtained dual drug-loading film color is yellow, thickness 0.42mm.
Embodiment 2：
Weigh 10 kilograms of nonionic polyurethane hydrogel particles, the thermoplastic polyurethane that 42 kilograms of shore hardnesses are 50A
Particle, 120 kilograms of n,N-Dimethylformamide are placed in reactor, be heated to 60 DEG C and stir make polyurethane hydrogel particle and
Thermoplastic polyurethane particle is completely dissolved, and obtains polyurethane solutions after cooling；40 kilogram of 1000 mesh Yunnan Baiyao powder is added,
It is uniformly mixing to obtain solidliquid mixture by high speed agitator；Solidliquid mixture is applied rapidly after carrying out 0.5h vacuum defoaming processing
It spreads in release paper, then immerses release paper in deionized water, film forming to be solidified is placed in drying box, in 50 DEG C of dryings
2h removes release paper to get to immobilized Yunnan Baiyao film after cooling；Immobilized Yunnan Baiyao film is immersed into Japanses beauty-berry grass extracting solution
3h in (Japanses beauty-berry grass extractive content is 10.0%), then carry out vacuum freeze drying and obtain dual drug-loading film；It is applied by adjusting
In the solidliquid mixture thickness control dual drug-loading film in release paper thickness be 0.45mm；It will be dual according to practical application request
Medicine carrying membrane is cut into appropriate size, and dual drug-loading film is pasted on medical non-woven fabrics gauze to get to a kind of load Types of Medicine wound
Dressing.
In the present embodiment, the weight percentage of nonionic polyurethane hydrogel is 4.7% in gained solidliquid mixture,
The weight percentage of thermoplastic polyurethane is 19.8%, and the weight percentage of n,N-Dimethylformamide is 56.6%, cloud
The weight percentage of southern baiyao powder is 18.9%.Obtained dual drug-loading film color is yellow, thickness 0.45mm.
Embodiment 3：
Weigh 10 kilograms of nonionic polyurethane hydrogel particles, the thermoplastic polyurethane that 25 kilograms of shore hardnesses are 60A
Particle, 120 kilograms of n,N-dimethylacetamide are placed in reactor, be heated to 70 DEG C and stir make polyurethane hydrogel particle and
Thermoplastic polyurethane particle is completely dissolved, and obtains polyurethane solutions after cooling；40 kilogram of 1500 mesh Yunnan Baiyao powder is added,
It is uniformly mixing to obtain solidliquid mixture by high speed agitator；Solidliquid mixture is applied rapidly after carrying out 0.5h vacuum defoaming processing
It spreading in release paper, then immerses release paper in deionized water, film forming to be solidified is placed in drying box, in 50 DEG C of dry 1h,
Removal release paper is to get to immobilized Yunnan Baiyao film after cooling；Immobilized Yunnan Baiyao film is immersed into Japanses beauty-berry grass extracting solution (Callicarpa bodinieri Levl.
Careless extractive content be 6.0%) in 3h, then carry out vacuum freeze drying and obtain dual drug-loading film；By adjusting coated on release
The thickness of solidliquid mixture thickness control dual drug-loading film on paper is 0.48mm；According to practical application request by dual drug-loading film
It is cut into appropriate size, dual drug-loading film is pasted on medical non-woven fabrics gauze to get to a kind of load Types of Medicine wound dressing.
In the present embodiment, the weight percentage of nonionic polyurethane hydrogel is 5.1% in gained solidliquid mixture,
The weight percentage of thermoplastic polyurethane is 12.8%, and the weight percentage of n,N-dimethylacetamide is 61.5%, cloud
The weight percentage of southern baiyao powder is 20.6%.Obtained dual drug-loading film color is yellow, thickness 0.48mm.
Embodiment 4：
Weigh 10 kilograms of nonionic polyurethane hydrogel particles, the thermoplastic polyurethane that 25 kilograms of shore hardnesses are 60A
Particle, 120 kilograms of n,N-dimethylacetamide are placed in reactor, be heated to 80 DEG C and stir make polyurethane hydrogel particle and
Thermoplastic polyurethane particle is completely dissolved, and obtains polyurethane solutions after cooling；60 kilogram of 2000 mesh Yunnan Baiyao powder is added,
It is uniformly mixing to obtain solidliquid mixture by high speed agitator；Solidliquid mixture is applied rapidly after carrying out 0.5h vacuum defoaming processing
It spreads in release paper, then immerses release paper in deionized water, film forming to be solidified is placed in drying box, in 50 DEG C of dryings
2h removes release paper to get to immobilized Yunnan Baiyao film after cooling；Immobilized Yunnan Baiyao film is immersed into Japanses beauty-berry grass extracting solution
3h in (Japanses beauty-berry grass extractive content is 8.0%), then carry out vacuum freeze drying and obtain dual drug-loading film；It is coated on by adjusting
The thickness of solidliquid mixture thickness control dual drug-loading film in release paper is 0.52mm；According to practical application request by dual load
Medicine film is cut into appropriate size, and dual drug-loading film is pasted on medical non-woven fabrics gauze and is applied to get to a kind of load Types of Medicine wound
Material.
In the present embodiment, the weight percentage of nonionic polyurethane hydrogel is 4.6% in gained solidliquid mixture,
The weight percentage of thermoplastic polyurethane is 11.6%, and the weight percentage of n,N-dimethylacetamide is 55.8%, cloud
The weight percentage of southern baiyao powder is 28%.Obtained dual drug-loading film color is yellow, thickness 0.52mm.
Claims (8)
1. a kind of preparation method carrying Types of Medicine wound dressing, it is characterised in that including following steps in sequence：
(1) by dry polyurethane hydrogel particle, thermoplastic polyurethane particle, solvent according to 10~18:25~42:120
Weight ratio is added in reactor, is heated to 50~80 DEG C and stirring makes polyurethane hydrogel particle and thermoplastic polyurethane particle fill
Divide and be dissolved in solvent, after being cooled to room temperature, polyurethane solutions are made；
(2) in polyurethane solutions obtained by step (1), dry Yunnan Baiyao powder, polyurethane solutions and Yunnan Baiyao is added
The weight ratio of powder is 155~180:40~60, and it is uniformly mixing to obtain solidliquid mixture using high speed agitator, and depressurize and disappear
Steep 0.5h；
(3) then solidliquid mixture even application obtained by step (2) is immersed release paper in deionized water in release paper,
It waits for that solidliquid mixture is fully cured film forming and is placed on 1~2h in 50 DEG C of drying boxes, removes release paper after cooling to get to immobilized
Yunnan Baiyao film；
(4) immobilized Yunnan Baiyao film made from step (3) is soaked in 3h in Japanses beauty-berry grass extracting solution, then carries out vacuum freeze drying
Obtain dual drug-loading film；
(5) dual drug-loading film is cut by appropriate size according to practical application request, and be pasted on medical non-woven fabrics gauze, i.e.,
Obtain a kind of load Types of Medicine wound dressing.
2. carrying the preparation method of Types of Medicine wound dressing according to claim 1, it is characterised in that：Step (1) described polyurethane
Hydrogel particle is nonionic polyurethane hydrogel particle.
3. carrying the preparation method of Types of Medicine wound dressing according to claim 1, it is characterised in that：Thermoplastic described in step (1)
Type polyurethane particle is polyether polyurethane particle, and shore hardness is 50A or 60A.
4. carrying the preparation method of Types of Medicine wound dressing according to claim 1, it is characterised in that：The solvent of step (1) is N,
One kind in dinethylformamide and DMAC N,N' dimethyl acetamide.
5. carrying the preparation method of Types of Medicine wound dressing according to claim 1, it is characterised in that：The Yunnan Baiyao of step (2)
Powder is the brown ceramic powder that fineness is 500~2000 mesh.
6. carrying the preparation method of Types of Medicine wound dressing according to claim 1, it is characterised in that：Obtained by step (2)
In solidliquid mixture, polyurethane hydrogel, thermoplastic polyurethane, solvent, Yunnan Baiyao powder weight percent be：Polyurethane
Hydrogel accounts for 4.7%~8.9%, and thermoplastic polyurethane accounts for 11.6%~19.8%, and solvent accounts for 55.8%~61.5%, and Yunnan is white
Medicinal powder end accounts for 18.9%~28.0%.
7. carrying the preparation method of Types of Medicine wound dressing according to claim 1, it is characterised in that：Japanses beauty-berry grass carries in step (4)
Taking the weight percent of liquid is：Japanses beauty-berry grass extract component accounts for 5.0~10.0%, and deionized water accounts for 90.0~95.0%.
8. carrying the preparation method of Types of Medicine wound dressing according to claim 1, it is characterised in that：Dual load obtained by step (5)
Medicine film appearance is yellow, passes through the solidliquid mixture thickness control dual drug-loading film being coated in regulating step (3) in release paper
Thickness is between 0.42~0.52mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179779.6A CN108283725A (en) | 2018-03-05 | 2018-03-05 | A kind of preparation method carrying Types of Medicine wound dressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179779.6A CN108283725A (en) | 2018-03-05 | 2018-03-05 | A kind of preparation method carrying Types of Medicine wound dressing |
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| Publication Number | Publication Date |
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| CN108283725A true CN108283725A (en) | 2018-07-17 |
Family
ID=62833171
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810179779.6A Pending CN108283725A (en) | 2018-03-05 | 2018-03-05 | A kind of preparation method carrying Types of Medicine wound dressing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699563A (en) * | 2022-02-22 | 2022-07-05 | 中国医科大学附属盛京医院 | Load type polyether polyurethane film, preparation method and application thereof |
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| CN114699563A (en) * | 2022-02-22 | 2022-07-05 | 中国医科大学附属盛京医院 | Load type polyether polyurethane film, preparation method and application thereof |
| CN114699563B (en) * | 2022-02-22 | 2024-02-02 | 中国医科大学附属盛京医院 | Supported polyether polyurethane film, preparation method and application thereof |
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