CN111529751B - Preparation method of medical sanitary non-woven fabric - Google Patents
Preparation method of medical sanitary non-woven fabric Download PDFInfo
- Publication number
- CN111529751B CN111529751B CN202010377422.6A CN202010377422A CN111529751B CN 111529751 B CN111529751 B CN 111529751B CN 202010377422 A CN202010377422 A CN 202010377422A CN 111529751 B CN111529751 B CN 111529751B
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- woven fabric
- parts
- medical
- raw materials
- protective layer
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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
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/04—Materials for stopping bleeding
Abstract
The invention belongs to the technical field of medical sanitary non-woven fabrics, and particularly relates to a preparation method of a medical sanitary non-woven fabric; comprises a protective layer and a dressing layer; the protective layer is in a sterile state and is formed by soaking in an antibacterial disinfectant; evenly distributed gelatin layers are fixedly connected to the two sides of the protective layer; a sliding groove is formed in the inner wall of the protective layer; the medical sanitary non-woven fabric is mainly used for solving the problems that most of the existing medical sanitary non-woven fabrics exist in a non-woven fabric mode, the structure is single, when a wound of a patient is slightly large, the medical property of the non-woven fabrics cannot quickly stop bleeding and sterilize the wound, so that the bleeding rate of the patient and the probability of fungal infection are increased, meanwhile, some medical sanitary non-woven fabrics have poor permeation effects, air flow in the non-woven fabrics can be reduced, the healing effect of the wound is slowed down, and some non-woven fabrics have good permeability, but the non-woven fabrics have poor bleeding stopping capability on the wound.
Description
Technical Field
The invention belongs to the technical field of medical sanitary non-woven fabrics, and particularly relates to a preparation method of a medical sanitary non-woven fabric.
Background
A nonwoven fabric, also called a nonwoven fabric, is prepared from chemical fibers, plant fibers and the like in a wet or dry paper machine by using water or air as a suspension medium, and is called a nonwoven fabric although it is a fabric rather than a woven fabric. The manufacture method comprises the steps of firstly, carrying out directional or random arrangement on textile short fibers or filaments to form a fiber web structure, and then reinforcing by adopting a mechanical, thermal bonding or chemical method. The non-woven fabric is a new-generation environment-friendly material, and has the characteristics of moisture resistance, air permeability, environmental protection, low production cost, easy decomposition, no toxicity, no stimulation and cyclic utilization. Most raw materials for preparing the non-woven fabric are polypropylene, different from polyethylene which is a raw material of a plastic bag, a chemical molecular structure has quite strong stability and is extremely difficult to degrade, so the plastic bag can be completely decomposed in 300 years, the chemical structure of the polypropylene is not stable enough, molecular chains are easy to break, and the polypropylene can be effectively degraded quickly, a non-woven fabric product is placed outdoors to be naturally decomposed for only 90 days at most, and is combusted after being discarded, so the non-woven fabric product is non-toxic, tasteless, free of any residual substance, and has the pollution degree to the environment of only 10 percent of that of the plastic bag, and is an internationally recognized environment-friendly product. The non-woven fabric is applied to the medical and health industry, tens of thousands of hospitals and medical clinics in China at present, the annual demand of the gas-proof and dust-proof mask reaches hundreds of millions, and the medical non-woven fabric has extremely wide market prospect in China. The polypropylene used as the raw material for preparing the non-woven fabric belongs to a chemical inactive substance, has the characteristics of chemical agent resistance, antibiosis and alkali corrosion resistance, has water drawing property, is not mildewed or damaged, and can isolate the corrosion of bacteria and insects in liquid, so in the aspect of medical sanitation, the non-woven fabric is always the preferred material for preparing surgical clothes, caps, masks, dust covers, absorbent cotton, sanitary underpants, wet face towels and the like, and the introduction of the medical sanitary non-woven fabric can be seen in the journal period: the medical non-woven fabric has the following problems in the prior art, namely medical sanitary equipment 1994(02) although the medical non-woven fabric has the following development and application status:
medical health non-woven fabrics that use among the prior art mostly all exists with the form of non-woven fabrics, and the structure is more single, when meetting patient's wound slightly big, the medicine nature that non-woven fabrics itself had can't stanch and disinfect to the wound fast, thereby increase patient's the bleeding rate and receive the problem of fungal infection's probability, the penetrating effect of medical health non-woven fabrics is relatively poor simultaneously, can reduce the air current in the non-woven fabrics, thereby the healing effect of wound slows down, and some non-woven fabrics have better permeability, but the non-woven fabrics is to the relatively poor problem of the hemostatic ability of wound.
In the prior art, there are some proposals about medical sanitary non-woven fabrics, such as patent No. 201010527236.2 with patent name of a medical composite non-woven fabric, although the non-woven fabric prepared by adopting a plurality of reagents has a certain antibacterial effect, the skin is affected by too much reagents, and meanwhile, the non-woven fabric prepared by the proposal has poor permeability.
In view of the above, in order to overcome the above technical problems, the present inventors have designed and developed a method for preparing a medical sanitary non-woven fabric, and have manufactured a special non-woven fabric, thereby solving the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a preparation method of a medical sanitary non-woven fabric, which is mainly used for solving the problems that most of the conventional medical sanitary non-woven fabrics exist in a non-woven fabric mode, the structure is single, when a wound of a patient is slightly large, the medical property of the non-woven fabric cannot rapidly stop and sterilize the wound, so that the bleeding rate of the patient and the probability of fungal infection are increased, meanwhile, some medical sanitary non-woven fabrics have poor permeability effects, the air flow in the non-woven fabrics can be reduced, so that the healing effect of the wound is slowed down, and some non-woven fabrics have good permeability, but the non-woven fabrics have poor bleeding stopping capability on the wound.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a preparation method of medical sanitary non-woven fabric; the feed is prepared from the following raw materials:
20-25 parts of terylene, 15-18 parts of viscose fiber, 3-5 parts of pure water, 5-7 parts of plant essence extract, 2-3 parts of dopamine mixed solution, 3-5 parts of hydrogel, 3-5 parts of medical iodine, 6-8 parts of nano silver, 6-8 parts of chitosan, 3-5 parts of hyaluronic acid and 4-6 parts of calcium alginate;
the preparation method of the medical sanitary non-woven fabric comprises the following steps:
s1: firstly, mixing the terylene and the viscose in the raw materials, extruding and hot-melting the raw materials after the raw materials are mixed, injecting the raw materials into spinning equipment for spinning after the extrusion and hot-melting are finished, and manufacturing the raw materials into cloth blanks with different sizes for later use; the fabric blank prepared from the raw materials has a skin-friendly effect, so that the fabric blank can be prevented from polluting the skin wound, and is soft and free from scraping the skin;
s2: putting pure water in raw materials into a reaction kettle, heating to 25-30 ℃, putting plant essence extracts, chitosan, nano-silver, hyaluronic acid and calcium alginate in the raw materials into the reaction kettle for mixing reaction after the pure water is heated, putting cloth blanks with different sizes prepared in S1 into the reaction kettle for soaking for 30-40 minutes in the raw material reaction process, and taking out the cloth blanks and putting the cloth blanks into a sterile dish after the soaking is finished; the prepared cloth blank is soaked in the mixed liquid, so that the cloth blank has certain antibacterial and anti-inflammatory effects, and the healing effect of the cloth blank on skin wounds is further improved;
s3: sequentially putting the dopamine mixed solution, the hydrogel and the medical iodine in the raw materials into a reaction kettle in S2 for mixing, after mixing, adhering the mixture in the reaction kettle on part of cloth blanks and gluing, and after gluing, putting the cloth blanks into a sterile dish for standing for 40-60 minutes; the mixed raw materials are adhered to the cloth blank, so that the surface of the cloth blank can be provided with a repairing layer, and the healing degree of the wound and the antibacterial and anti-inflammatory effects can be further improved;
s4: bonding the fabric blank containing the medicine prepared in the step S3 with the rest fabric blank to obtain medical sanitary non-woven fabric after bonding, placing the obtained non-woven fabric into a sterilizing device for sterilization, and placing the non-woven fabric into a sterile bag after sterilization; the obtained nonwoven fabric can be sterilized completely to prevent infection of wound caused by bacteria contained in the nonwoven fabric.
Preferably, the raw materials also comprise polyvinylpyrrolidone and amino-terminated polyethylene glycol;
the polyvinylpyrrolidone used in the raw material is a medicinal material and has stronger adhesive capacity, can exist in an adhesive agent mode, simultaneously has stronger stability and lubricity, thereby preventing the prepared dressing from easily reacting with other substances to reduce the medical effect, simultaneously can be adhered with the dopamine mixed solution in the raw material to form strong hydrogen bond combination, thereby improving the firmness and the adhesive property of the non-woven fabric coating, simultaneously can be complexed with the iodine element in the raw material to introduce the bactericidal group of the iodine element, constructs the non-woven fabric surface with the anti-fouling and bactericidal synergistic effect, and the amino-terminated polyethylene glycol used in the raw material can react with the dopamine mixed solution in the invention, thereby introducing the group of the amino-terminated polyethylene glycol to the surface of the dressing, thereby improving the excellent antibacterial adhesion performance of the dressing.
Preferably, the plant essence extract contains various plant essences, mainly comprising panax notoginseng main root plant essence and castor bean leaf plant essence;
the plant essence extract is a natural medicine, not only has the functions of resisting bacteria and diminishing inflammation, but also has the functions of accelerating wound healing and stopping bleeding and pain, the panax notoginseng root plant essence contained in the plant essence extract is the essence extracted from the panax notoginseng root, in the invention, the non-woven fabric can have the functions of stopping bleeding and relieving pain, the dencichine contained in the panax notoginseng root essence can promote platelet aggregation and blood coagulation, the bleeding can be quickly helped to stop bleeding for the bleeding wound which is bleeding, the pain of an affected part can be relieved, and the healing can be further accelerated by matching with the non-woven fabric, the castor bean leaf plant essence contained in the plant essence extract is the essence extracted from castor bean leaves, and the plant essence has the functions of stopping pain, relieving itching, sterilizing and disinfecting, in the invention, fungi on the surface of the skin can be killed, so that the skin is prevented from fungal infection, meanwhile, the ointment can also perform the functions of reducing swelling and relieving pain on the skin, thereby relieving the pain and the itching of a patient.
Preferably, the non-woven fabric comprises a protective layer and a dressing layer; the protective layer is in a sterile state and is formed by soaking in an antibacterial disinfectant; evenly distributed gelatin layers are fixedly connected to the two sides of the protective layer; a sliding groove is formed in the inner wall of the protective layer; first air holes are uniformly distributed in the inner wall of the protective layer above the sliding groove, and the first air holes are communicated with the outside; a dressing layer is connected in the sliding groove in a sliding manner; the dressing layer is prepared by mixing a plurality of Chinese herbal medicines and an antibacterial and anti-inflammatory agent and then adhering the mixture on a cloth blank by utilizing a hydrogel; the end face of the top of the sliding chute is fixedly connected with uniformly arranged sacks in the inner wall of the protective layer, and the sacks are filled with an antibacterial agent diluent; the bag is made of a biological membrane material; the inner wall of the dressing layer is fixedly connected with water absorption rods which are uniformly distributed, and the water absorption rods correspond to the sacks one by one; first micropores which are uniformly distributed are formed in the inner wall of the water absorption rod;
when the medical sanitary non-woven fabric is used, firstly, the gelatin layer is pasted on the surface of the skin, the dressing layer can be extruded to slide into the chute in the pasting process of the gelatin layer, the water absorption rod can be driven to move upwards and puncture the bag in the sliding process of the dressing layer into the chute, and the bag is made of a biological membrane material, therefore, the bag can be easily punctured, after the bag is punctured, the antibacterial agent diluent in the bag flows into the dressing layer from the first micropores formed in the inner wall of the water absorption rod, the antibacterial effect of the dressing layer can be improved after the antibacterial agent diluent flows into the dressing layer, and the dressing layer can be diluted, so that the dressing layer can further exert the medical effect, meanwhile, the water absorption rod also has a certain supporting function, so that the sliding groove can be prevented from being attached to the dressing layer, the air flow in the non-woven fabric can be reduced, because the first through holes uniformly distributed are formed in the inner wall of the protective layer, the gas in the sliding groove can flow, the gas in the sliding groove can be prevented from being blocked, the bag can not flow the antibacterial agent diluent into the water absorption rod, the non-woven fabric can be prevented from being blocked, the skin can be blocked, and the healing time of the wound can be reduced, because the dressing layer is formed by mixing multiple chinese herbal medicine and antibiotic anti-inflammatory agent, thereby can stanch fast the wound, antibiotic anti-inflammatory's effect, because the inoxidizing coating is sterile condition, thereby can prevent to contain the bacterium in the inoxidizing coating and lead to the fact the influence to patient's wound, the inoxidizing coating still has certain cushioning effect simultaneously, when the patient is using the non-woven fabrics, when striking the non-woven fabrics carelessly, the pressure that the inoxidizing coating received can be cushioned to the pole that absorbs water, thereby prevent that the inoxidizing coating from touching the condition that the wound made the wound fracture.
Preferably, a flow groove is formed in the inner wall of the dressing layer, and the water absorption rod is fixedly connected with the end face of the bottom of the flow groove; through holes which are uniformly distributed are formed in the inner walls of the two sides of the launder and are communicated with the outside; second air holes are uniformly distributed in the inner wall of the bottom of the dressing layer and are communicated with the outside; the end surface of the top of the launder is fixedly connected with arc layers which are uniformly arranged and are designed to be elastic; each second air hole part corresponds to the arc-shaped layer one by one;
when the medical sanitary non-woven fabric is used, because the flow groove is arranged in the dressing layer and is communicated with the outside through the through hole, outside gas can flow into the flow groove through the through hole, and the gas can flow to the surface of skin through the second air hole after flowing into the flow groove, thereby preventing the healing degree of the wound from being affected by excessive oppression of the surface of the skin, because the water absorption rod is fixedly connected with the end surface at the bottom of the flow groove, the diluent of the antibacterial agent absorbed by the water absorption rod can partially flow into the flow groove, and after the diluent of the antibacterial agent flows into the flow groove, the diffusion degree of the diluent of the antibacterial agent can be improved, thereby enabling the dressing layer to be uniformly diluted, can further promote the dressing layer at this in-process and exert medicinal effect, because link firmly the arc layer of evenly arranging in the chute, the arc layer can play the effect of support to can prevent that the chute from taking place the laminating, reduce the permeability of dressing layer, because second gas pocket part corresponds with the arc layer, can press into the skin surface with antiseptic and the gas of arc layer below after the arc layer receives the extrusion, can improve the air flow on skin surface at this in-process, can also improve the antibacterial effect to the wound simultaneously.
Preferably, the inner wall of the dressing layer is fixedly connected with water absorption strips which are uniformly arranged, and second micropores which are uniformly arranged are formed in the water absorption strips; the bottom of each water absorption strip is designed in an arc shape, and the water absorption strip partially extends out of the dressing layer; the other end of each water absorbing strip extends to the upper surface of the protective layer;
the during operation, because be equipped with the strip that absorbs water in the dressing layer, and the strip part that absorbs water stretches out the dressing layer, after dressing layer and skin laminating, the strip that absorbs water can extrude skin, thereby can slow down the flow of blood, can accelerate the hemostatic effect to the wound at the medicinal effect through the dressing layer, the strip that absorbs water simultaneously can also absorb the sweat stain and the blood stain on skin surface, prevent to have too much moisture on the skin to cause the influence to the wound, the strip that absorbs water still has the effect of supporting chute and spout, thereby can guarantee the permeability in the non-woven fabrics, because set up the second micropore of evenly arranging in the strip that absorbs water, external gas can flow in the non-woven fabrics through the second micropore, thereby can further increase the permeability of non-woven fabrics.
The invention has the following beneficial effects:
1. the invention adds the plant essence extract which is a natural medicine, not only has the functions of resisting bacteria and diminishing inflammation, but also has the functions of accelerating wound healing and stopping bleeding and relieving pain, the panax notoginseng root plant essence contained in the plant essence extract is the essence extracted from the panax notoginseng root, the non-woven fabric can have the functions of stopping bleeding and relieving pain, the dencichine contained in the panax notoginseng root essence can promote platelet aggregation and blood coagulation, the hemostasis can be quickly assisted for bleeding wounds with bleeding, the pain of affected parts can be relieved, the healing can be accelerated, the hemostasis and healing of the wounds can be further accelerated by matching with the non-woven fabric, the castor leaf plant essence contained in the plant essence extract is the essence extracted from castor leaves, the essence has the functions of stopping pain, relieving itching, sterilizing and disinfecting, and fungi on the surface of the skin can be killed in the invention, thereby preventing the skin from being infected by fungi, and simultaneously, the utility model can also have the functions of detumescence and acesodyne to the skin, thereby relieving the pain and the pruritus of the patients.
2. According to the invention, the flow groove is arranged, the flow groove is formed in the dressing layer and is communicated with the outside through the through hole, outside gas can flow into the flow groove through the through hole, and can flow to the surface of the skin through the second air hole after the gas flows into the flow groove, so that the wound healing degree is prevented from being affected by excessive heaviness of the surface of the skin.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a front view of a nonwoven fabric of the present invention;
FIG. 3 is a cross-sectional view of a nonwoven fabric of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
in the figure: the protective layer 1, the gelatin layer 11, the chute 12, the first air hole 13, the bag 14, the water absorption strip 15, the second micro hole 16, the dressing layer 2, the water absorption rod 21, the first micro hole 22, the launder 23, the second air hole 24 and the arc layer 25.
Detailed Description
A method for producing a medical sanitary nonwoven fabric according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1-4, a method for preparing a medical sanitary non-woven fabric according to the present invention; the feed is prepared from the following raw materials:
20-25 parts of terylene, 15-18 parts of viscose fiber, 3-5 parts of pure water, 5-7 parts of plant essence extract, 2-3 parts of dopamine mixed solution, 3-5 parts of hydrogel, 3-5 parts of medical iodine, 6-8 parts of nano silver, 6-8 parts of chitosan, 3-5 parts of hyaluronic acid and 4-6 parts of calcium alginate;
the preparation method of the medical sanitary non-woven fabric comprises the following steps:
s1: firstly, mixing the terylene and the viscose in the raw materials, extruding and hot-melting the raw materials after the raw materials are mixed, injecting the raw materials into spinning equipment for spinning after the extrusion and hot-melting are finished, and manufacturing the raw materials into cloth blanks with different sizes for later use; the fabric blank prepared from the raw materials has a skin-friendly effect, so that the fabric blank can be prevented from polluting the skin wound, and is soft and free from scraping the skin;
s2: putting pure water in raw materials into a reaction kettle, heating to 25-30 ℃, putting plant essence extracts, chitosan, nano-silver, hyaluronic acid and calcium alginate in the raw materials into the reaction kettle for mixing reaction after the pure water is heated, putting cloth blanks with different sizes prepared in S1 into the reaction kettle for soaking for 30-40 minutes in the raw material reaction process, and taking out the cloth blanks and putting the cloth blanks into a sterile dish after the soaking is finished; the prepared cloth blank is soaked in the mixed liquid, so that the cloth blank has certain antibacterial and anti-inflammatory effects, and the healing effect of the cloth blank on skin wounds is further improved;
s3: sequentially putting the dopamine mixed solution, the hydrogel and the medical iodine in the raw materials into a reaction kettle in S2 for mixing, after mixing, adhering the mixture in the reaction kettle on part of cloth blanks and gluing, and after gluing, putting the cloth blanks into a sterile dish for standing for 40-60 minutes; the mixed raw materials are adhered to the cloth blank, so that the surface of the cloth blank can be provided with a repairing layer, and the healing degree of the wound and the antibacterial and anti-inflammatory effects can be further improved;
s4: bonding the fabric blank containing the medicine prepared in the step S3 with the rest fabric blank to obtain medical sanitary non-woven fabric after bonding, placing the obtained non-woven fabric into a sterilizing device for sterilization, and placing the non-woven fabric into a sterile bag after sterilization; the obtained nonwoven fabric can be sterilized completely to prevent infection of wound caused by bacteria contained in the nonwoven fabric.
As an embodiment of the invention, the raw materials further comprise polyvinylpyrrolidone and amino-terminated polyethylene glycol;
the polyvinylpyrrolidone used in the raw material is a medicinal material and has stronger adhesive capacity, can exist in an adhesive agent mode, simultaneously has stronger stability and lubricity, thereby preventing the prepared dressing from easily reacting with other substances to reduce the medical effect, simultaneously can be adhered with the dopamine mixed solution in the raw material to form strong hydrogen bond combination, thereby improving the firmness and the adhesive property of the non-woven fabric coating, simultaneously can be complexed with the iodine element in the raw material to introduce the bactericidal group of the iodine element, constructs the non-woven fabric surface with the anti-fouling and bactericidal synergistic effect, and the amino-terminated polyethylene glycol used in the raw material can react with the dopamine mixed solution in the invention, thereby introducing the group of the amino-terminated polyethylene glycol to the surface of the dressing, thereby improving the excellent antibacterial adhesion performance of the dressing.
As one embodiment of the invention, the plant essence extract contains a plurality of plant essences, mainly comprising panax notoginseng root plant essence and castor bean leaf plant essence;
the plant essence extract is a natural medicine, not only has the functions of resisting bacteria and diminishing inflammation, but also has the functions of accelerating wound healing and stopping bleeding and pain, the panax notoginseng root plant essence contained in the plant essence extract is the essence extracted from the panax notoginseng root, in the invention, the non-woven fabric can have the functions of stopping bleeding and relieving pain, the dencichine contained in the panax notoginseng root essence can promote platelet aggregation and blood coagulation, the bleeding can be quickly helped to stop bleeding for the bleeding wound which is bleeding, the pain of an affected part can be relieved, and the healing can be further accelerated by matching with the non-woven fabric, the castor bean leaf plant essence contained in the plant essence extract is the essence extracted from castor bean leaves, and the plant essence has the functions of stopping pain, relieving itching, sterilizing and disinfecting, in the invention, fungi on the surface of the skin can be killed, so that the skin is prevented from fungal infection, meanwhile, the ointment can also perform the functions of reducing swelling and relieving pain on the skin, thereby relieving the pain and the itching of a patient.
As an embodiment of the present invention, wherein the nonwoven fabric includes a protective layer 1 and a dressing layer 2; the protective layer 1 is in an aseptic state and is formed by soaking in an antibacterial disinfectant; the two sides of the protective layer 1 are fixedly connected with evenly arranged gelatin layers 11; a sliding groove 12 is formed in the inner wall of the protective layer 1; first air holes 13 are uniformly arranged in the inner wall of the protective layer 1 above the sliding groove 12, and the first air holes 13 are communicated with the outside; the dressing layer 2 is connected in the sliding groove 12 in a sliding manner; the dressing layer 2 is prepared by mixing a plurality of Chinese herbal medicines and an antibacterial and anti-inflammatory agent and then adhering the mixture on a cloth blank by utilizing a hydrogel; the top end face of the chute 12 is fixedly connected with uniformly arranged sacks 14 in the inner wall of the protective layer 1, and the sacks 14 are filled with an antibacterial agent diluent; the capsule 14 is made of a biological membrane material; the inner wall of the dressing layer 2 is fixedly connected with water absorption rods 21 which are uniformly arranged, and the water absorption rods 21 correspond to the sacks 14 one by one; first micropores 22 which are uniformly distributed are formed in the inner wall of the water absorption rod 21;
when the medical sanitary non-woven fabric is used, firstly, the gelatin layer 11 is pasted on the surface of the skin, the dressing layer 2 can be extruded to slide into the chute 12 in the pasting process of the gelatin layer 11, the water absorption rod 21 can be driven to move upwards and puncture the sac bag 14 in the sliding process of the dressing layer 2 into the chute 12, and the sac bag 14 is made of a biological membrane material, therefore, the air bag 14 can be easily punctured, after the air bag 14 is punctured, the antibacterial agent diluent in the air bag 14 flows into the dressing layer 2 from the first micropores 22 formed in the inner wall of the water absorption rod 21, the antibacterial effect of the dressing layer 2 can be improved after the antibacterial agent diluent flows into the dressing layer 2, meanwhile, the air bag can have the diluting effect on the dressing layer 2, the dressing layer 2 can further exert the medical effect, meanwhile, the water absorption rod 21 also has a certain supporting effect, the sliding groove 12 can be prevented from being attached to the dressing layer 2, the air flow in the non-woven fabric can be reduced, as the first through holes which are uniformly distributed are formed in the inner wall of the protective layer 1, the air in the sliding groove 12 can flow, the air in the sliding groove 12 can be prevented from being blocked, the air in the air bag 14 can not flow out of the antibacterial agent diluent in the water absorption rod 21, and the air in the non-woven fabric can be prevented from being blocked, thereby make skin take place the phenomenon of heaviness, reduce the healing time of wound, because dressing layer 2 is formed for multiple chinese herbal medicine and the mixture of antibiotic anti-inflammatory agent, thereby can stanch fast the wound, antibiotic anti-inflammatory's effect, because inoxidizing coating 1 is sterile condition, thereby can prevent to contain the bacterium in inoxidizing coating 1 and lead to the fact the influence to the patient wound, inoxidizing coating 1 still has certain cushioning effect simultaneously, when the patient is when using the non-woven fabrics, when careless striking the non-woven fabrics, the pressure that inoxidizing coating 1 received can be cushioned to water absorption pole 21, thereby prevent that inoxidizing coating 1 from touching the condition that the wound made the wound fracture.
As an embodiment of the invention, a flow groove 23 is formed in the inner wall of the dressing layer 2, and the water absorption rod 21 is fixedly connected with the bottom end face of the flow groove 23; through holes which are uniformly distributed are formed in the inner walls of the two sides of the launder 23 and are communicated with the outside; second air holes 24 are uniformly distributed in the inner wall of the bottom of the dressing layer 2, and the second air holes 24 are communicated with the outside; the end face of the top of the launder 23 is fixedly connected with arc layers 25 which are uniformly arranged, and the arc layers 25 are designed to be elastic; each second air hole 24 part corresponds to the cambered layer 25 one by one;
when the medical sanitary non-woven fabric is used, the flow groove 23 is formed in the dressing layer 2, the flow groove 23 is communicated with the outside through the through hole, outside air can flow into the flow groove 23 through the through hole, the air can flow to the surface of the skin through the second air hole 24 after flowing into the flow groove 23, so that the healing degree of the wound is prevented from being affected by excessive oppression of the surface of the skin, the antibacterial agent diluent absorbed by the water absorption rod 21 can partially flow into the flow groove 23 due to the fact that the water absorption rod 21 is fixedly connected with the bottom end face of the flow groove 23, and the diffusion degree of the antibacterial agent diluent can be improved after the antibacterial agent diluent flows into the flow groove 23, thereby make dressing layer 2 to even dilution, can further promote dressing layer 2 to exert medicinal effect at this in-process, because arc layer 25 of evenly arranging has been linked firmly in the chute 23, arc layer 25 can play the effect of support, thereby can prevent that the laminating from taking place for chute 23, reduce dressing layer 2's permeability, because second gas pocket 24 part corresponds with arc layer 25, can press into the skin surface with the antiseptic and the gas below arc layer 25 after arc layer 25 receives the extrusion, can improve the air flow on skin surface at this in-process, can also improve the antibiotic effect to the wound simultaneously.
As an embodiment of the invention, the inner wall of the dressing layer 2 is fixedly connected with water absorbing strips 15 which are uniformly arranged, and second micropores 16 which are uniformly arranged are formed in the water absorbing strips 15; the bottom of each water absorbing strip 15 is designed to be arc-shaped, and the water absorbing strips partially extend out of the dressing layer 2; the other end of each water absorbing strip 15 extends to the upper surface of the protective layer 1;
the during operation, because be equipped with the strip 15 that absorbs water in the dressing layer 2, and the strip 15 part that absorbs water stretches out dressing layer 2, after dressing layer 2 and skin laminating, the strip 15 that absorbs water can extrude skin, thereby can slow down the flow of blood, can accelerate the hemostatic effect to the wound at the medicinal effect through dressing layer 2, the strip 15 that absorbs water simultaneously can also absorb the sweat stain and the blood stain on skin surface, prevent that there is too much moisture on the skin to cause the influence to the wound, the strip 15 that absorbs water still has the effect of supporting chute 23 and spout 12, thereby can guarantee the permeability in the non-woven fabrics, because set up the second micropore 16 of evenly arranging in the strip 15 that absorbs water, external gas can pass through in the 16 outflow non-woven fabrics of second micropore, thereby can further increase the permeability of non-woven fabrics.
The specific working process is as follows:
when the invention is used, firstly the gelatin layer 11 is pasted on the surface of the skin, the dressing layer 2 can be extruded to slide towards the chute 12 in the pasting process of the gelatin layer 11, the water absorption rod 21 can be driven to move upwards and puncture the bag 14 in the sliding process of the dressing layer 2 towards the chute 12, the bag 14 can be easily punctured as the bag 14 is made of the biological membrane material, the antibacterial agent diluent in the bag 14 flows into the dressing layer 2 from the first micropores 22 formed in the inner wall of the water absorption rod 21 after the bag 14 is punctured, the antibacterial agent diluent can improve the antibacterial effect of the dressing layer 2 after flowing into the dressing layer 2, and simultaneously the water absorption rod 21 also has a certain supporting function, and can prevent the chute 12 from being pasted with the dressing layer 2, thereby reducing the air flow in the non-woven fabric, because the first through holes which are evenly arranged are arranged in the inner wall of the protective layer 1, the air in the sliding groove 12 can flow, thereby preventing the air in the sliding groove 12 from being blocked, so that the bag 14 can not flow out of the antibacterial agent diluent into the water absorption rod 21, and simultaneously can also prevent the non-woven fabric from being blocked, thereby causing the skin to generate the phenomenon of stuffiness, and reducing the healing time of the wound, because the dressing layer 2 is formed by mixing a plurality of Chinese herbal medicines and antibacterial and anti-inflammatory agents, the wound can be rapidly stopped, the antibacterial and anti-inflammatory effects can be realized, because the protective layer 1 is in an aseptic state, the influence of bacteria in the protective layer 1 on the wound of the patient can be prevented, meanwhile, the protective layer 1 also has a certain buffer effect, when the patient uses the non-woven fabric, when the non-woven fabric is carelessly impacted, the, thereby preventing the protective layer 1 from touching the wound and cracking the wound.
In order to verify the influence of the adopted plant essence extract and hyaluronic acid on the preparation of the medical sanitary non-woven fabric and the influence of the special non-woven fabric on the preparation process of the medical sanitary non-woven fabric in the preparation method of the medical sanitary non-woven fabric, the following four experimental groups are specially made for experimental verification:
6 parts of plant essence extract, 4 parts of medical iodine, 7 parts of nano-silver, 4 parts of hyaluronic acid, 5 parts of calcium alginate and 7 parts of chitosan, and according to the preparation method of the medical sanitary non-woven fabric, the bleeding amount and the fungus number of the wound are detected by using the special non-woven fabric.
4 parts of medical iodine, 7 parts of nano silver, 4 parts of hyaluronic acid, 5 parts of calcium alginate and 7 parts of chitosan, and detecting the bleeding amount and the fungal quantity of a wound after the special non-woven fabric is used according to the preparation method of the medical sanitary non-woven fabric.
Experimental group 3
6 parts of plant essence extract, 4 parts of medical iodine, 7 parts of nano silver, 5 parts of calcium alginate and 7 parts of chitosan, and according to the preparation method of the medical sanitary non-woven fabric, the bleeding amount and the fungus number of the wound are detected after the special non-woven fabric is used.
Experimental group 4
6 parts of plant essence extract, 4 parts of medical iodine, 7 parts of nano-silver, 4 parts of hyaluronic acid, 5 parts of calcium alginate and 7 parts of chitosan, and according to the preparation method of the medical sanitary non-woven fabric, the bleeding amount and the fungus number of the wound are detected after the traditional non-woven fabric is used.
TABLE 1
TABLE 2
Table 2 shows that, as shown in experiment groups 1 and 2, the amount of bleeding and the amount of fungi in the wound were significantly increased in the absence of the plant essence extract in the raw material, as shown in experiment groups 1 and 3, the amount of bleeding and the amount of fungi in the wound were significantly increased in the absence of hyaluronic acid in the raw material, and as shown in experiment groups 1 and 4, the amount of bleeding and the amount of fungi in the wound were significantly increased in the case of manufacturing the conventional medical hygienic nonwoven fabric using the manufacturing method of the present invention.
In conclusion, the use of the plant essence extract and the hyaluronic acid can accelerate the wound hemostasis speed, and simultaneously can improve the antibacterial effect of the non-woven fabric, and meanwhile, the medical sanitary non-woven fabric prepared by the method can further improve the antibacterial and anti-inflammatory effects of the medical sanitary non-woven fabric after being matched with the method, and simultaneously has the effects of quickly stopping bleeding and accelerating wound healing.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited by the foregoing experimental group, and that the foregoing experimental group and description are only illustrative of the principles of the present invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A preparation method of medical sanitary non-woven fabric is characterized by comprising the following steps: the feed is prepared from the following raw materials:
20-25 parts of terylene, 15-18 parts of viscose fiber, 3-5 parts of pure water, 5-7 parts of plant essence extract, 2-3 parts of dopamine mixed solution, 3-5 parts of hydrogel, 3-5 parts of medical iodine, 6-8 parts of nano silver, 6-8 parts of chitosan, 3-5 parts of hyaluronic acid and 4-6 parts of calcium alginate;
the preparation method of the medical sanitary non-woven fabric comprises the following steps:
s1: firstly, mixing the terylene and the viscose in the raw materials, extruding and hot-melting the raw materials after the raw materials are mixed, injecting the raw materials into spinning equipment for spinning after the extrusion and hot-melting are finished, and manufacturing the raw materials into cloth blanks with different sizes for later use;
s2: putting pure water in raw materials into a reaction kettle, heating to 25-30 ℃, putting plant essence extracts, chitosan, nano-silver, hyaluronic acid and calcium alginate in the raw materials into the reaction kettle for mixing reaction after the pure water is heated, putting cloth blanks with different sizes prepared in S1 into the reaction kettle for soaking for 30-40 minutes in the raw material reaction process, and taking out the cloth blanks and putting the cloth blanks into a sterile dish after the soaking is finished;
s3: sequentially putting the dopamine mixed solution, the hydrogel and the medical iodine in the raw materials into a reaction kettle in S2 for mixing, after mixing, adhering the mixture in the reaction kettle on part of cloth blanks and gluing, and after gluing, putting the cloth blanks into a sterile dish for standing for 40-60 minutes;
s4: bonding the fabric blank containing the medicine prepared in the step S3 with the rest fabric blank to obtain medical sanitary non-woven fabric after bonding, placing the obtained non-woven fabric into a sterilizing device for sterilization, and placing the non-woven fabric into a sterile bag after sterilization;
wherein the non-woven fabric comprises a protective layer (1) and a dressing layer (2); the protective layer (1) is in a sterile state and is formed by soaking in an antibacterial disinfectant; the two sides of the protective layer (1) are fixedly connected with evenly arranged gelatin layers (11); a sliding groove (12) is formed in the inner wall of the protective layer (1); first air holes (13) are uniformly distributed in the inner wall of the protective layer (1) above the sliding groove (12), and the first air holes (13) are communicated with the outside; the dressing layer (2) is connected in the sliding groove (12) in a sliding way; the dressing layer (2) is prepared by mixing a plurality of Chinese herbal medicines and an antibacterial and anti-inflammatory agent and then adhering the mixture on a cloth blank by utilizing a hydrogel; the top end face of the chute (12) is fixedly connected with uniformly arranged sacks (14) in the inner wall of the protective layer (1), and the sacks (14) are filled with an antibacterial agent diluent; the bag (14) is made of a biological membrane material; the inner wall of the dressing layer (2) is fixedly connected with water absorption rods (21) which are uniformly arranged, and the water absorption rods (21) correspond to the sacks (14) one by one; first micropores (22) which are uniformly distributed are formed in the inner wall of the water absorption rod (21);
a chute (23) is formed in the inner wall of the dressing layer (2), and the water absorption rod (21) is fixedly connected with the bottom end face of the chute (23); through holes which are uniformly distributed are formed in the inner walls of the two sides of the launder (23), and the through holes are communicated with the outside; second air holes (24) are uniformly distributed in the inner wall of the bottom of the dressing layer (2), and the second air holes (24) are communicated with the outside; the end surface of the top of the launder (23) is fixedly connected with uniformly arranged arc-shaped layers (25), and the arc-shaped layers (25) are designed to be elastic; each second air hole (24) part corresponds to the arc-shaped layer (25) one by one;
the inner wall of the dressing layer (2) is fixedly connected with water absorbing strips (15) which are uniformly arranged, and second micropores (16) which are uniformly arranged are formed in the water absorbing strips (15); the bottom of each water absorbing strip (15) is designed to be arc-shaped, and the part of the water absorbing strip extends out of the dressing layer (2); the other end of each water absorption strip (15) extends to the upper surface of the protective layer (1).
2. The method for preparing a medical hygienic nonwoven fabric according to claim 1, wherein the method comprises the following steps: the raw materials also comprise polyvinylpyrrolidone and amino-terminated polyethylene glycol.
3. The method for preparing a medical hygienic nonwoven fabric according to claim 1, wherein the method comprises the following steps: the plant essence extract contains various plant essences, mainly comprising pseudo-ginseng main root plant essence and castor bean leaf plant essence.
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