CN107510884A - A kind of Silica hydrogel elasticity scar plaster and preparation method thereof - Google Patents

A kind of Silica hydrogel elasticity scar plaster and preparation method thereof Download PDF

Info

Publication number
CN107510884A
CN107510884A CN201710918728.6A CN201710918728A CN107510884A CN 107510884 A CN107510884 A CN 107510884A CN 201710918728 A CN201710918728 A CN 201710918728A CN 107510884 A CN107510884 A CN 107510884A
Authority
CN
China
Prior art keywords
layer
medical
medicine
silicone gel
scar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710918728.6A
Other languages
Chinese (zh)
Inventor
曹晶晶
周新钦
张艳琦
李延浩
彭克林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Huibo Medical Co Ltd
Original Assignee
Henan Huibo Medical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Huibo Medical Co Ltd filed Critical Henan Huibo Medical Co Ltd
Priority to CN201710918728.6A priority Critical patent/CN107510884A/en
Publication of CN107510884A publication Critical patent/CN107510884A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/18Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/20Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/26Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/28Polysaccharides or their derivatives
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/425Porous materials, e.g. foams or sponges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/44Medicaments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2300/00Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/25Peptides having up to 20 amino acids in a defined sequence
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2300/00Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/30Compounds of undetermined constitution extracted from natural sources, e.g. Aloe Vera
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2300/00Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/412Tissue-regenerating or healing or proliferative agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2400/00Materials characterised by their function or physical properties
    • A61L2400/12Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A61M2037/0007Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin having means for enhancing the permeation of substances through the epidermis, e.g. using suction or depression, electric or magnetic fields, sound waves or chemical agents

Abstract

The present invention relates to field of medical article technology, more particularly to a kind of Silica hydrogel elasticity scar plaster and preparation method thereof,, as internal layer, to include medical sponge layer and the flexible backing layer that medical silicone gel layer, hydrophilic yarn layer of cloth, dip loading have medicine successively from inside to outside close to the side of the surface of a wound;The dip loading, which has in the medical sponge layer of medicine, is built-in with air bag, and air bag is connected with aerating device;The medicine of medical sponge layer dipping is the chitosan lecithin nanoparticle for being embedded with medicine;The material that medical silicone gel layer uses is acid medical silicone gel.One side hydrophilic yarn layer of cloth promotes drug microparticles to be transferred to gel layer, on the other hand acid silicone gel promotes the embedding of drug microparticles solution, promote skin at insoluble drug release to scar, activation scar, repair scar, pass through hydrophilic yarn layer of cloth and chitosan double action simultaneously, one layer of moisturizing film is provided to scar, and moisture is provided, mitigate the discomfort such as dry skin itch at scar.

Description

A kind of Silica hydrogel elasticity scar plaster and preparation method thereof
Technical field
The present invention relates to field of medical article technology, and in particular to a kind of Silica hydrogel elasticity scar plaster and preparation method thereof.
Background technology
Scar is change of the caused a kind of normal skin tissue on mode of appearance and histopathology after various wounds, The formation of scar is the inevitable outcome in processes of wound repair.Clinically, often left behind after patient wound's wound healing serious Scar, especially hyperplastic scar is very common.Hyperplastic scar is due to fibroblast undue growth, extracellular base The over-deposit such as proteoglycan, glycoprotein and collagen is formed in matter.A large amount of clinical researches show that skin histology tension force is in wound scar Played a crucial role in the forming process of trace, tension force is bigger, and the possibility that scar is formed after wound healing is bigger.Therefore, drop is passed through Low scar surrounding skin tissue tension, it effectively can mitigate or suppress scar hyperplasia.It is clinically at present to use pressure therapy more, such as Silicone dressing combination pressure garment or elastic sleeve are used in combination, and can prevent the formation of hyperplastic scar to a certain extent, still Pressure therapy worked only for hyperplastic scar it is very fast, and for other scars such as umbilicate type scar to no effect, in addition, pressure Therapy is not suitable for the scraggly position such as hand, foot, joint.And the pressure garment or bullet used in pressure therapy Power set its own resilient can not be controlled effectively as needed, and it is uneven pressure size to be generally present, and wearing is uncomfortable or even difficult It is inconvenient for use and expensive to endure.
Dispelled scar band and preparation method as the A of Chinese patent CN 104983495 disclose a kind of malleation Silica hydrogel elastic force, including Elastic band, the medical silicone gel layer of one layer of scar of dispelling is adhered on the elastic band, and the medical silicone gel layer is provided with protection Layer, two ends of the elastic band are a pair of ventilative fixed elastic band devices.The patent cooperates with work with layer of silicone using promotion layer With, and combination pressure therapy, promote scar quickly to repair.But the promotion layer of the patent can only pass through slow medicine with layer of silicone Slow releasing function is at scar, and the time at medicine arrival scar is long and concentration is small, and the recovery for scar needs longer effect week Phase;And the patented product acts on pressure at scar and reaches effect by elastic band fixation, pressure is excessive in operating process Easily skin at damage scar, pressure is too small, does not reach effect, elastic band pressure size can not at-once monitor and regulation, not enough Convenient, intelligence.
Therefore, it is necessary to which structure and component to elastic scar plaster carry out innovative improvement, to adapt to the items of scar reparation Demand.
The content of the invention
The defects of in order to overcome prior art, can be to wound it is an object of the invention to provide a kind of Silica hydrogel elasticity scar plaster Face applies pressure, can realize the controllability of insoluble drug release, and drug release rate is fast, disclosure satisfy that wound repair demand, uses It is convenient, it effectively can mitigate or suppress scar.
In order to realize the above object the present invention adopts the following technical scheme that:
A kind of Silica hydrogel elasticity scar plaster, as internal layer, to include medical silicone gel successively from inside to outside close to the side of the surface of a wound Layer, hydrophilic yarn layer of cloth, dip loading have medical sponge layer and the flexible backing layer of medicine;The dip loading has the doctor of medicine With air bag is built-in with spongy layer, air bag is connected with aerating device;
The medicine of medical sponge layer dipping is the chitosan-lecithin nanoparticle for being embedded with medicine;Medical silicone gel layer is adopted Material is acid medical silicone gel.
Optionally, pH=3-5 of the medical silicone gel layer.
Optionally, it is made in acidity by adding acetic acid for raw material in the medical silicone gel preparation course.
Further, the medical silicone gel is prepared by each raw material of following parts by weight:Dimethione 20 ~ 50 parts, 10 ~ 20 parts of cyclopentasiloxane, 2 ~ 8 parts of silica, 1 ~ 10 part of catalyst, acetic acid 3-8 parts.
In order to ensure each functional layer fully plays its effect, and further lifted medicine dissolving release speed and Medicine is conducted to the controllability of medical silicone gel layer, and the thickness of the medical silicone gel layer is 0.2-1mm;Medical sponge layer Thickness be 3-10mm;The thickness of hydrophilic yarn layer of cloth is 0.01-0.5mm.
Optionally, the material that the hydrophilic yarn layer of cloth uses is polypropylene fibre and synthetic cotton blended material.
Optionally, the medicine of the chitosan-lecithin particulate embedding includes Gotu Kola P.E, low molecular weight hyaluronic acid Sodium, glycerine.
The pressure applied to the surface of a wound monitor and adjust in real time in order to realize, the flexible backing layer is built-in with pressure Force snesor, pressure sensor are electrically connected with pressure display module.Further, the pressure sensor is electrically connected with pressure Control module, pressure control module are electrically connected with alarm device, when the pressure of pressure sensor detection is more than setup pressure value Pressure control module sends signal control alarm device and sounded the alarm.Wherein pressure control module can use PLC controls system System, program setting maximum pressure value, when the pressure that pressure sensor detects is more than the pressure value of setting, PLC control system Signal is sent, alarm device receives signal and sounded the alarm.
Optionally, the size of the medical silicone gel layer is more than or equal to medical sponge layer, and the size of flexible backing layer is big In medical silicone gel layer.
Optionally, the flexible backing layer is partially circumferentially laid with tack coat beyond medical silicone gel layer.
Optionally, the internal layer of the medical silicone gel layer is additionally provided with release film layer.
Optionally, the size of the release film layer is more than flexible backing layer.
Optionally, the material that the flexible backing layer uses is Medical used elastic cloth, elastic polyurethane film, tape stretch, painting There is one kind in the elastic non-woven cloth of medical pressure sensitive adhesive;The color of flexible backing layer is water white transparency or the colour of skin.
Optionally, the material that the release film layer uses is polypropylene or polyethylene.
Optionally, the release film layer is triangle line film or lozenge film.
The preparation method of above-mentioned Silica hydrogel elasticity scar plaster, it is characterised in that comprise the following steps:
1)Prepare acid medical silicone gel:Dimethione, cyclopentasiloxane, silica, acetic acid is taken to mix equal After even, catalyst is added, is mixed evenly again, bubble removing, produces acid medical silicone gel;
2)Preparing dip loading has the medical sponge layer of medicine:
A:Take medical sponge to hollow out to form cavity at middle part, air bag is placed in the cavities, air bag is connected by connecting tube and inflated Device;
B:Using acetic acid chitosan, chitosan acetic acid solution is obtained;Take lecithin, need embedding medicinal dissolving in ethanol, obtain Lecithin ethanol solution;Under stirring, chitosan acetic acid solution is added dropwise in lecithin ethanol solution, and adds emulsification Agent, the chitosan-lecithin nanoparticle for being embedded with medicine is then formed by ultrasonication;
C:The chitosan-lecithin nanoparticle injection for being embedded with medicine prepared by step B enter step A making be built-in with gas In the medical sponge of capsule, obtained dip loading has the medical sponge layer of medicine;
3)Each layer is adhesion-molded:Take step 1)The acid medical silicone gel of preparation is uniformly applied to the following table of hydrophilic yarn layer of cloth Face, by step 2)The medical sponge layer that the dip loading of preparation has medicine is bonded in the upper surface of hydrophilic yarn layer of cloth, Ran Houzai Flexible backing layer is bonded in the upper surface of medical sponge layer, 15min~30min is reacted at a temperature of being placed in 70 DEG C~90 DEG C, so After be transferred under 120 DEG C~150 DEG C temperature conditionss reaction 10min~20min, that is, complete.Accelerate silicone gel by heating It is molded in hydrophilic yarn layer of cloth lower surface.
Optionally, embedding medicinal is needed to be made up of the raw material of following parts by weight in step B:Gotu Kola P.E 5-10 parts, Low molecular weight hyaluronic acid 0.5-2 parts, glycerine 5-10 parts;
The mass percentage concentration of chitosan acetic acid solution is 2% in step B;The mass concentration of lecithin is in lecithin soln 20g/L, the mass concentration for needing embedding medicinal are 5mg/mL;The volumetric usage ratio of chitosan acetic acid solution and lecithin ethanol solution For 1:6;
Emulsifying agent in step B is Tween 80;The quality dosage of emulsifying agent is 1.2%.
Silica hydrogel elasticity scar plaster of the present invention, has the advantages that compared with prior art:
1st, elastic band and medical sponge layer compounding use, dual-pressure at scar is given, promotes scar reparation;
2nd, air bag and pharmaceutical-impregnated medical sponge are used cooperatively, and are inflated by internal airbag, air bag increase, compress pharmaceutical-impregnated Medical sponge layer, make to treat scar insoluble drug release in sponge, while increase tension force at scar, not only pressurizeed but also be administered, and pass through Air bag pressurization administration, had both improved the shortcomings that existing scar plaster medicament slow release is slow, and the action period is long, moreover it is possible to avoid by pumping It is administered continuously, control drug concentration is excessive to produce the risk stimulated to skin at scar, reaches treatment scar effect;
3rd, further, miniature pressure cell is used cooperatively with air bag, both can constantly monitor the Tensity size given at scar, Also inflation can be evacuated by air bag to adjust Tensity size.Can be according to miniature pressure cell in flexible backing layer in operating process To adjust medical sponge layer tension force, if pressure sensor is alarmed, display pressure is excessive, can be evacuated with balloon interface, reduces wound If tension force pressure is too small at mouthful, inflated with balloon interface, increase wound tension force, and discharge medicine;
4th, on the one hand the load carriers as silicone gel, the another aspect present invention are used as bone to hydrophilic yarn layer of cloth using chitosan Frame material, by introducing lecithin hydrophobic grouping, its self aggregation under the conditions of aqueous phase is assembled, tool is formed after rearranged There is the nanoparticle of hydrophily shell and hydrophobic inner core, therefore hydrophilic gauze layer can attract outside with hydrophily The chitosan-lecithin nanoparticle of shell is conducted into silicone gel, is produced guide functions to sponge drug particles, is carried Rise drug release rate;A wet environment also is provided for skin at scar simultaneously, mitigates the discomfort such as dry skin itch at scar;
5th, by the way that medicine is wrapped up into chitosan lecithin particulate, the stability of medicine is on the one hand increased;On the other hand due to Lechitin-chitosan nanoparticle formation basic theory is that chitosan is positively charged, and lecithin is negatively charged, therefore in certain limit just Negative electrical charge, which be combined with each other, is self-assembly of nanoparticle, in sour environment, H+Concentration increases, most of phosphoric acid in lecithin The anion of group is by H+Occupy, the electrostatic attraction destroyed between chitosan and lecithin, cause the release of entrapped drug, therefore The present invention uses acid medical silicone gel, for example adds acetic acid, promotes drug microparticles to discharge into silicone gel and skin, together When due to the good antibacterial, anti-inflammatory of chitosan, performance of keeping humidity, can prevent from infecting at scar, and give skin to provide a moist ring Border, promote scar reparation;Lecithin is the main component of cell membrane, has very strong biocompatibility with cell, can increase medicine The stability and Transdermal absorption ability of thing, promote the absorption of the drug ingedients such as centella;
6th, the drug ingedient such as Gotu Kola P.E, low molecular weight hyaluronic acid and glycerine and chitosan, lecithin are used cooperatively, and are both sent out Wave Gotu Kola P.E to stimulate circulation, improve the advantageous effect of cutaneous pigmentation at scar, further through low point of lecithin The absorption of sub- hyaluronic acid Penetration enhancing effect increase centella, increase centella, chitosan action effect, and also lecithin is except tool Have and promote outside osmotic effect, also there is the formation for promoting epidermis lipid barrier, be advantageous to epidermis recovery, promote scar reparation.
In a word, the present invention will be embedded with the chitosan-lecithin nanoparticle dip loading of medicine medical sponge layer, with Acid silicone gel, hydrophilic yarn layer of cloth compounding use, produce synergy, and one side hydrophilic yarn layer of cloth promotes medicine micro- Grain is transferred to gel layer, and on the other hand acid silicone gel promotes the embedding of drug microparticles solution, promotes skin at insoluble drug release to scar Skin, activation scar, scar is repaired, while by hydrophilic yarn layer of cloth and chitosan double action, one layer of moisturizing is provided to scar Film, and moisture is provided, mitigate the discomfort such as dry skin itch at scar.
Brief description of the drawings
Fig. 1 is the overall structure diagram of elastic scar plaster provided in an embodiment of the present invention.
Embodiment
The particle size for the chitosan-lecithin nanoparticle of medicine that what is prepared in following embodiments be embedded with for 120~ 160nm;The pore size of hydrophilic yarn layer of cloth is 0.4-1um;
The material that hydrophilic yarn layer of cloth uses in following embodiments forms for polypropylene fibre and artificial cotton blend;Flexible backing layer The material used for Medical used elastic cloth, elastic polyurethane film, tape stretch, scribble in the elastic non-woven cloth of medical pressure sensitive adhesive one Kind;The color of flexible backing layer is water white transparency or the colour of skin;The material that the release film layer uses is polypropylene or polyethylene;From Type film layer is triangle line film or lozenge film.
The concrete structure of the Silica hydrogel elasticity scar plaster provided in following embodiments is as shown in figure 1, with close to the one of the surface of a wound Side is internal layer, and including release film layer 10, medical silicone gel 9, hydrophilic yarn layer of cloth 7, dip loading successively from inside to outside has medicine The medical sponge layer 4 of thing and flexible backing layer 1;Dip loading, which has, is built-in with air bag 5 in the medical sponge layer 4 of medicine, air bag 5 connects It is connected to aerating device 6;
The size of hydrophilic yarn layer of cloth 7 is more than the size of medical sponge layer 4, and hydrophilic yarn layer of cloth 7 exceeds the portion of medical sponge layer 4 Divide and be circumferentially provided with gauze tack coat 8, for hydrophilic yarn layer of cloth 7, flexible backing layer 4 and medical sponge layer 1 to be bonded as into one Body;
The size of flexible backing layer 1 is more than medical silicone gel layer 9, and flexible backing layer 1 exceeds the part of medical silicone gel layer 9 Tack coat 3 is circumferentially provided with, for whole Silica hydrogel elasticity scar plaster to be fixed on into the surface of a wound.
The medicine of medical sponge layer dipping 4 is the chitosan-lecithin nanoparticle for being embedded with medicine;Medical silicone gel The material that layer 9 uses is acid medical silicone gel.
The thickness of medical silicone gel layer is 0.2-1mm;The thickness of medical sponge layer is 3-10mm;Hydrophilic yarn layer of cloth Thickness is 0.01-0.5mm.
The pressure applied to the surface of a wound monitor and adjust in real time in order to realize, flexible backing layer 1 is built-in with pressure Sensor 2, pressure sensor 2 are electrically connected with pressure display module.Further, pressure sensor is electrically connected with Stress control Module, pressure control module are electrically connected with alarm device, the pressure when the pressure of pressure sensor detection is more than setup pressure value Control module sends signal control alarm device and sounded the alarm.Wherein pressure control module can use PLC control system, journey Sequence sets maximum pressure value, and when the pressure that pressure sensor detects is more than the pressure value of setting, PLC control system sends letter Number, alarm device receives signal and sounded the alarm.
Embodiment 1
The medical silicone gel of the present embodiment Silica hydrogel elasticity scar plaster is prepared by each raw material of following parts by weight:Poly- two 35 parts of first siloxanes, 15 parts of cyclopentasiloxane, 5 parts of silica, 5 parts of catalyst, 5 parts of acetic acid;
The medicine for being embedded with the chitosan-lecithin particulate embedding of medicine is made up of the raw material of following parts by weight:Centella carries Take 5 parts of thing, 0.5 part of low-numerator sodium hyaluronate, 5 parts of glycerine.
The preparation method of the present embodiment Silica hydrogel elasticity scar plaster, it is characterised in that comprise the following steps:
1)Prepare acid medical silicone gel:Ratio takes dimethione, cyclopentasiloxane, silica, vinegar by weight After acid is mixed evenly, catalyst is added, is mixed evenly again, the bubble removing by the way of ultrasonic wave, produces acidity Medical silicone gel;
2)Preparing dip loading has the medical sponge layer of medicine:
A:Medical sponge is taken to hollow out to form cavity at middle part, cavity left and right ends are apart from the corresponding left and right lateral edges of medical sponge Distance be 5cm, the distance of upper and lower ends both sides above and below medical sponge is 10cm, by air bag place in the cavities, air bag Aerating device is connected by connecting tube;
B:Using acetic acid chitosan, the chitosan acetic acid solution that mass concentration is 2% is obtained;Take lecithin, need embedding medicinal molten Solution in ethanol, obtains lecithin ethanol solution, and the mass concentration of lecithin is 20g/L, need to embed medicine in lecithin ethanol solution The mass concentration of thing is 5mg/mL;The bubble removed in chitosan acetic acid solution is stood, under stirring, utilizes syringe (Injection needle d=0.7mm), chitosan acetic acid solution is added dropwise in lecithin ethanol solution, chitosan acetic acid solution and lecithin The volumetric usage ratio of fat ethanol solution is 1:6, and the emulsifier tween 80 of 1.2% dosage is added, then formed by ultrasonication It is embedded with the chitosan-lecithin nanoparticle of medicine;
C:The chitosan-lecithin nanoparticle injection for being embedded with medicine prepared by step B enter step A making be built-in with gas In the medical sponge of capsule, obtained dip loading has the medical sponge layer of medicine;
3)Each layer is adhesion-molded:Take step 1)The acid medical silicone gel of preparation is uniformly applied to the following table of hydrophilic yarn layer of cloth Face, by step 2)The medical sponge layer that the dip loading of preparation has medicine is bonded in the upper surface of hydrophilic yarn layer of cloth, Ran Houzai Flexible backing layer is bonded in the upper surface of medical sponge layer, 15min~30min is reacted at a temperature of being placed in 70 DEG C~90 DEG C, so After be transferred under 120 DEG C~150 DEG C temperature conditionss reaction 10min~20min, then smear bonding on the periphery of flexible backing layer Agent, release film layer covering is bonded on medical silicone gel layer, that is, completed.
Embodiment 2
The medical silicone gel of the present embodiment Silica hydrogel elasticity scar plaster is prepared by each raw material of following parts by weight:Poly- two 20 parts of first siloxanes, 10 parts of cyclopentasiloxane, 2 parts of silica, 1 part of catalyst, 3 parts of acetic acid;
The medicine for being embedded with the chitosan-lecithin particulate embedding of medicine is made up of the raw material of following parts by weight:Centella carries Take 10 parts of thing, 2 parts of low-numerator sodium hyaluronate, 10 parts of glycerine.
The preparation method of the present embodiment Silica hydrogel elasticity scar plaster as different from Example 1, chitosan acetic acid in step B The mass percentage concentration of solution is 2%;The mass concentration of lecithin is 20g/L, needs the quality of embedding medicinal dense in lecithin soln Spend for 5mg/mL;The volumetric usage ratio of chitosan acetic acid solution and lecithin ethanol solution is 1:6;The dosage of emulsifying agent is 1.2%。
Embodiment 3
The medical silicone gel of the present embodiment Silica hydrogel elasticity scar plaster is prepared by each raw material of following parts by weight:Poly- two 50 parts of first siloxanes, 20 parts of cyclopentasiloxane, 8 parts of silica, 10 parts of catalyst, 8 parts of acetic acid;
The medicine for being embedded with the chitosan-lecithin particulate embedding of medicine is made up of the raw material of following parts by weight:Centella carries Take 7 parts of thing, 1 part of low-numerator sodium hyaluronate, 7.5 parts of glycerine.
The preparation method of the present embodiment Silica hydrogel elasticity scar plaster as different from Example 1, chitosan acetic acid in step B The mass percentage concentration of solution is 2%;The mass concentration of lecithin is 20g/L, needs the quality of embedding medicinal dense in lecithin soln Spend for 5mg/mL;The volumetric usage ratio of chitosan acetic acid solution and lecithin ethanol solution is 1:6;The dosage of emulsifying agent is 1.2%。
It should be noted that release film layer is set to be used to protect on the Silica hydrogel elasticity scar plaster provided in above-described embodiment Scar plaster, it is avoided to be contaminated;Pressure sensor and pressure control module are to realize the real-time detection and alarm of pressure Function.Release film layer and pressure control module can be saved according to the application scenario of reality in actual application, fall within this The protection domain of invention.Meanwhile the restriction for the thickness of each layer is in order to preferably play the function of each layer, in practical application During those skilled in the art's thickness that can adjust each layer according to being actually needed, the thickness of each layer do not formed to the technology of the present invention The restriction of scheme.
Embodiments of the present invention are elaborated above in conjunction with drawings and examples, but the present invention is not limited to Above-mentioned embodiment, in those of ordinary skill in the art's possessed knowledge, present inventive concept can also not departed from On the premise of changed or changed.

Claims (10)

1. a kind of Silica hydrogel elasticity scar plaster, it is characterised in that, as internal layer, to include successively from inside to outside close to the side of the surface of a wound Medical silicone gel layer, hydrophilic yarn layer of cloth, dip loading have medical sponge layer and the flexible backing layer of medicine;The dipping is negative It is loaded with the medical sponge layer of medicine and is built-in with air bag, air bag is connected with aerating device;
The medicine of medical sponge layer dipping is the chitosan-lecithin nanoparticle for being embedded with medicine;Medical silicone gel layer is adopted Material is acid medical silicone gel.
2. Silica hydrogel elasticity scar plaster as claimed in claim 1, it is characterised in that pH=3- of the medical silicone gel layer 5。
3. Silica hydrogel elasticity scar plaster as claimed in claim 1, it is characterised in that in the medical silicone gel preparation course Make it in acidity by adding acetic acid for raw material.
4. Silica hydrogel elasticity scar plaster as claimed in claim 3, it is characterised in that the medical silicone gel is by following weight Each raw material of number is prepared:20 ~ 50 parts of dimethione, 10 ~ 20 parts of cyclopentasiloxane, 2 ~ 8 parts of silica, catalysis 1 ~ 10 part of agent, acetic acid 3-8 parts.
5. Silica hydrogel elasticity scar plaster as claimed in claim 4, it is characterised in that the thickness of the medical silicone gel layer is 0.2-1mm;The thickness of medical sponge layer is 5-10mm;The thickness of hydrophilic yarn layer of cloth is 0.01-0.5mm.
6. the Silica hydrogel elasticity scar plaster as any one of claim 1 ~ 5, it is characterised in that the hydrophilic yarn layer of cloth The material used forms for polypropylene fibre and artificial cotton fiber's blending.
7. the Silica hydrogel elasticity scar plaster as described in any one of claim 1 ~ 5, it is characterised in that the chitosan-lecithin The medicine of particulate embedding includes Gotu Kola P.E, low-numerator sodium hyaluronate, glycerine.
8. the Silica hydrogel elasticity scar plaster as described in any one of claim 1 ~ 5, it is characterised in that built in the flexible backing layer There is pressure sensor, pressure sensor is electrically connected with pressure display module.
9. the Silica hydrogel elasticity scar plaster as described in any one of claim 1 ~ 5, it is characterised in that the hydrophilic yarn layer of cloth Size is more than or equal to medical sponge layer, and the size of flexible backing layer is more than medical silicone gel layer;Flexible backing layer is beyond medical Silicone gel is partially circumferentially laid with tack coat.
10. a kind of preparation method of Silica hydrogel elasticity scar plaster as claimed in claim 5, it is characterised in that including following step Suddenly:
1)Prepare acid medical silicone gel:Dimethione, cyclopentasiloxane, silica, acetic acid is taken to mix equal After even, catalyst is added, is mixed evenly again, bubble removing, produces acid medical silicone gel;
2)Preparing dip loading has the medical sponge layer of medicine:
A:Take medical sponge to hollow out to form cavity at middle part, air bag is placed in the cavities, air bag is connected by connecting tube and inflated Device;
B:Using acetic acid chitosan, chitosan acetic acid solution is obtained;Take lecithin, need embedding medicinal dissolving in ethanol, obtain Lecithin ethanol solution;Under stirring, chitosan acetic acid solution is added dropwise in lecithin ethanol solution, and adds emulsification Agent, the chitosan-lecithin nanoparticle for being embedded with medicine is then formed by ultrasonication;
C:The chitosan-lecithin nanoparticle injection for being embedded with medicine prepared by step B enter step A making be built-in with gas In the medical sponge of capsule, obtained dip loading has the medical sponge layer of medicine;
3)Each layer is adhesion-molded:Take step 1)The acid medical silicone gel of preparation is uniformly applied to the following table of hydrophilic yarn layer of cloth Face, by step 2)The medical sponge layer that the dip loading of preparation has medicine is bonded in the upper surface of hydrophilic yarn layer of cloth, Ran Houzai Flexible backing layer is bonded in the upper surface of medical sponge layer, 15min~30min is reacted at a temperature of being placed in 70 DEG C~90 DEG C, so After be transferred under 120 DEG C~150 DEG C temperature conditionss reaction 10min~20min, that is, complete.
CN201710918728.6A 2017-09-30 2017-09-30 A kind of Silica hydrogel elasticity scar plaster and preparation method thereof Pending CN107510884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710918728.6A CN107510884A (en) 2017-09-30 2017-09-30 A kind of Silica hydrogel elasticity scar plaster and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710918728.6A CN107510884A (en) 2017-09-30 2017-09-30 A kind of Silica hydrogel elasticity scar plaster and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107510884A true CN107510884A (en) 2017-12-26

Family

ID=60727050

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710918728.6A Pending CN107510884A (en) 2017-09-30 2017-09-30 A kind of Silica hydrogel elasticity scar plaster and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107510884A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108295369A (en) * 2018-01-31 2018-07-20 余道逍 A kind of medical face moisture-keeping auxiliary mask
CN108379724A (en) * 2018-01-31 2018-08-10 余道逍 A kind of medical night humidification system and its control method
CN109260503A (en) * 2018-09-30 2019-01-25 振德医疗用品股份有限公司 A kind of absorbing material and preparation method thereof, the dressing comprising the material
CN109998778A (en) * 2019-05-07 2019-07-12 广州市第八人民医院 A kind of band pressure medical application suit
CN110917177A (en) * 2019-02-26 2020-03-27 山东煜和堂药业有限公司 Hyperplastic scar plaster and its making method
CN114712334A (en) * 2022-04-08 2022-07-08 季华实验室 A gel patch for treating traumatic injury, and its preparation method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1663560A (en) * 2004-03-03 2005-09-07 杭州民生药业集团有限公司 Transdermal drug administering system
CN201015652Y (en) * 2007-01-19 2008-02-06 宋保生 Skin burn concrescence paste
CN101239041A (en) * 2008-03-18 2008-08-13 天津大学 High molecule liposome and uses thereof
CN201822966U (en) * 2010-10-30 2011-05-11 中国人民解放军第四军医大学 External paster for treating skin soft tissue infection
CN201832026U (en) * 2010-04-02 2011-05-18 李汉穆 Medicine feeding device for external treatment
CN103495155A (en) * 2013-09-25 2014-01-08 南阳市汇博生物技术有限公司 Film for hyperplastic scar repair and preparation method thereof
CN203749693U (en) * 2014-01-21 2014-08-06 山东省千佛山医院 Leg medicine compress strap
CN104983495A (en) * 2015-08-10 2015-10-21 南阳市汇博生物技术有限公司 Positive pressure silicon gel elastic scar eliminating band and preparation method thereof
CN208511708U (en) * 2017-09-30 2019-02-19 河南汇博医疗股份有限公司 A kind of Silica hydrogel elasticity scar plaster

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1663560A (en) * 2004-03-03 2005-09-07 杭州民生药业集团有限公司 Transdermal drug administering system
CN201015652Y (en) * 2007-01-19 2008-02-06 宋保生 Skin burn concrescence paste
CN101239041A (en) * 2008-03-18 2008-08-13 天津大学 High molecule liposome and uses thereof
CN201832026U (en) * 2010-04-02 2011-05-18 李汉穆 Medicine feeding device for external treatment
CN201822966U (en) * 2010-10-30 2011-05-11 中国人民解放军第四军医大学 External paster for treating skin soft tissue infection
CN103495155A (en) * 2013-09-25 2014-01-08 南阳市汇博生物技术有限公司 Film for hyperplastic scar repair and preparation method thereof
CN203749693U (en) * 2014-01-21 2014-08-06 山东省千佛山医院 Leg medicine compress strap
CN104983495A (en) * 2015-08-10 2015-10-21 南阳市汇博生物技术有限公司 Positive pressure silicon gel elastic scar eliminating band and preparation method thereof
CN208511708U (en) * 2017-09-30 2019-02-19 河南汇博医疗股份有限公司 A kind of Silica hydrogel elasticity scar plaster

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108295369A (en) * 2018-01-31 2018-07-20 余道逍 A kind of medical face moisture-keeping auxiliary mask
CN108379724A (en) * 2018-01-31 2018-08-10 余道逍 A kind of medical night humidification system and its control method
CN109260503A (en) * 2018-09-30 2019-01-25 振德医疗用品股份有限公司 A kind of absorbing material and preparation method thereof, the dressing comprising the material
CN110917177A (en) * 2019-02-26 2020-03-27 山东煜和堂药业有限公司 Hyperplastic scar plaster and its making method
CN110917177B (en) * 2019-02-26 2023-01-24 山东煜和堂药业有限公司 Hyperplastic scar plaster and its making method
CN109998778A (en) * 2019-05-07 2019-07-12 广州市第八人民医院 A kind of band pressure medical application suit
CN114712334A (en) * 2022-04-08 2022-07-08 季华实验室 A gel patch for treating traumatic injury, and its preparation method

Similar Documents

Publication Publication Date Title
CN107510884A (en) A kind of Silica hydrogel elasticity scar plaster and preparation method thereof
Zarrintaj et al. Can regenerative medicine and nanotechnology combine to heal wounds? The search for the ideal wound dressing
Saghazadeh et al. Drug delivery systems and materials for wound healing applications
AU2017382407B2 (en) Devices and methods for wound treatment
CN206214465U (en) Skin or surface of a wound combine dressing and its external member
CN106456569A (en) Device for delivery of skin care composition
Zhou et al. Rational design of intelligent and multifunctional dressing to promote acute/chronic wound healing
KR20070105331A (en) Device method, and use for treatment of neuropathy involving nitric oxide
CN103520783A (en) Systems for providing fluid flow to tissues
CN103768650A (en) Wound regenerating and repairing bandage and manufacture method thereof
KR101661353B1 (en) Preparation method of hydrogel mask pack having supply control function of a single or different skin active ingredients
CN107496972B (en) Anti-adhesion wet dressing for promoting healing of burn wound and preparation method thereof
KR100542875B1 (en) Hydrogel dressings for wound dressings or packs and its preparation
Hampton et al. Healing an intractable wound using bio-electrical stimulation therapy
MX2007003206A (en) Wound care dressing and method using same.
CN208389182U (en) A kind of elasticity scar plaster
CN204017156U (en) A kind of far-infrared magnet therapeutic healing accelerating dressing
CN208511708U (en) A kind of Silica hydrogel elasticity scar plaster
CN104983495A (en) Positive pressure silicon gel elastic scar eliminating band and preparation method thereof
CN107375994A (en) A kind of medical gel adhesive bandage product preparation method
Gürtler et al. Electrospun fibers for the treatment of skin diseases
CN206214441U (en) A kind of course for the treatment of topical application of drug patch
CN208259842U (en) A kind of sugar kidney bowel lavage antiseepage dressing
WO2017134573A1 (en) Resorbable preparation for medical applications, and characteristic uses for said preparation
CN202458908U (en) Novel band-aid

Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination