148 results about "Hemostatic gauze" patented technology

Bioabsorbable, water-soluble hemostatic cellulose based gauze matrix structures are described, including one or more species of chitosan, etherized cellulose, nonionic surfactant, water-soluble polysaccharide hydrocolloid and / or gum. Approximately 85% to 95% deacetylated decrystallized chitosan, present in an amount from about 2% to about 15% by weight, is found to be particularly advantageous. Favorable properties are found related to rapid stoppage of bleeding and bioabsorbability, among other properties.

Several hemostatic bandages that are commercially available function by tightly sealing a wound so that hemostasis can occur before excessive blood loss takes place. Hemostatic bandages which seal a wound but which do not actually speed the coagulation mechanism include chitosan and chitin-based bandages. Hemostatic gauzes based on chemically modified cellulose are also commercially available. These bandages and gauzes, used in combination with various inorganic materials such as zeolite, silica, and / or diatomaceous earth powder show a synergistic effect. It has been found that the inorganic material activates the contact coagulation mechanism while the biopolymer component binds the wound and prevents excessive blood loss.

The invention relates to a method for preparing a bletilla striata hemostatic gauze and belongs to the technical field of textile engineering. The preparation method provided by the invention employs the manner of carrying out the process of soaking bletilla striata stem blocks in distilled water a plurality of times, filtering and collecting the filtrate, and further comprises the following steps of: concentrating the collected filtrate, adding absolute ethyl alcohol to the concentrated bletilla striata gum solution, thoroughly standing and performing alcohol precipitation, thereby obtaining white precipitate; washing the white precipitate using absolute ethyl alcohol, and drying the precipitate for future use; preparing the dried bletilla striata gum into a spinning solution with water as a solvent and spinning the solution into long filaments with the absolute ethyl alcohol as a coagulating bath; knitting the long filaments into the gauze through needle weaving, machine weaving or non-weaving; and then cutting, disinfecting and packing the gauze, thereby obtaining the water-soluble hemostatic gauze. The raw material employed by the preparation method provided by the invention is the bletilla striata gum extracted from the bletilla striata stem blocks; the bletilla striata gum has excellent water-solubility; the bletilla striata long filaments can be degraded and absorbed in body and is good in compatibility with the organism without side effect on the wound. Chemicals involved with the preparation of the bletilla striata hemostatic gauze is only the absolute ethyl alcohol which can not generate harmful substances and has no pollution on the environment; and the coagulating bath for spinning by the wet method and the spinning process are simple and low in cost.

The invention relates to soluble hemostatic gauze prepared from carboxymethylated solvent woven cellulosic fiber and preparation methods thereof. According to one method for preparing the soluble hemostatic gauze, the carboxymethylated solvent woven cellulosic fiber is respectively alkalized and etherified respectively by sodium hydroxide solution and sodium chloroacetate solution step by step. In addition, the invention further provides another method for preparing the soluble hemostatic gauze, wherein the carboxymethylated solvent woven cellulosic fiber is further alkalized and etherified in one step by a mixed solution of sodium hydroxide and sodium chloroacetate. According to the invention, the carboxymethylated cellulosic fiber with high transparency, high degree of substitution and high water-absorbing quality can be prepared at a low temperature, and the soluble hemostatic gauze provided by the invention can be prepared.

The invention discloses chitosan hemostatic gauze. The chitosan hemostatic gauze is characterized by being prepared from the following raw materials in parts by weight: 3-5 parts of pelargonium hortorum, 3-5 parts of dahurian angelica root, 1-2 parts of panax notoginseng, 1-2 parts of cape jasmine, 4-6 parts of chitosan, 8-12 parts of gelatin, 0.1-0.2 part of squalane, 0.1-0.2 part of polysorbate-80, 2-4 parts of sodium alginate, 2-4 parts of sodium carboxymethylcellulose, 1-2 parts of hydroxyethyl starch, 1-2 parts of auxiliary materials and 200-250 parts of water. According to the chitosan hemostatic gauze disclosed by the invention, soluble hemostatic gauze is prepared from natural high molecular materials such as chitosan and the like in a coordination mode, the soluble hemostatic gauze has good hemostatic functions and good antibacterial effects, is easy to be absorbed by a human body, is good in biocompatibility, and cannot cause toxic or side effect; by extracting and compounding natural plant effective components, the hemostatic gauze can be used for diminishing inflammation and relieving pain, and converging and removing scars; and moreover, the chitosan hemostatic gauze has slow release effects, can be used for effectively prolonging the action time, and ensures that better use effects can be achieved.

The invention relates to clay-enhanced cuttlefish bone meal hemostatic gauze and a manufacturing method thereof. The hemostatic gauze comprises a substrate material, cuttlefish bone meal which is combined on the substrate material and is used as hemostat and clay which is combined on the substrate material and is used for enhancing the hemostatic effect, or also comprises other beneficial components which have the promoting effect on hemostasis and a connection agent for combining each component on the substrate material. The manufacturing method comprises the following steps of: preparing a suspension sizing agent by using water, the cuttlefish bone meal and the clay, and heating the suspension sizing agent at the temperature of 15 DEG C until the suspension sizing agent is boiling; immersing the substrate material into the sizing agent, or coating the sizing agent on the substrate material; taking the substrate material impregnated or coated with the sizing agent out, and performing flat pressing or rolling, or after taking the substrate material impregnated or coated with the sizing agent out, covering one side or both sides of the substrate material coating with the sizing agent by using medical cotton yarn or non-woven fabrics, and performing the flat pressing or the rolling again; and performing drying and sterilization to obtain the clay-enhanced cuttlefish bone meal hemostatic gauze. The gauze is used for treating surgical haemorrhage; and compared with the treatment of the ordinary gauze, the clay-enhanced cuttlefish bone meal hemostatic gauze has the advantages that: the hemostatic time of the hemostatic gauze is shortened by 35.9 to 66.5 percent; and the blood loss amount of the hemostatic gauze is reduced by 49.9 to 88.4 percent.

A soluble hemostatic gauze for anti-inflammation and pain relieving and the preparing method, relating to field of medical sanitary goods. The hemostatic gauze comprises the following substance according to the percentage by weight: dibasic sodium phosphate 0.1-0.3%, sodium alginate 1-1.8%, carbomu 0.5-25, antibacterial drugs 1-10%, polyethylene glycol 1-2%, tuwen 1-4%, dimethicone 0.1-1%, sodium carboxymethylcellulose 0.2-0.8%, americaine 0.05% and the left is ethanol solution. The product possesses functions of special pain relieving, preventing adhesion after surgery besides functions of hemostatic, broad spectrum antibiotic and promoting wound healing, which is of great importance for relieving patient pain and improving their survival quality.

The invention provides a porous hemostatic powder which is prepared by carrying out physical drilling on a soluble material to form porous microspheres. A preparation method of the porous styptic powder comprises the following steps: putting the soluble material on a supersonic vibration bed device, starting the device, vibrating, and simultaneously carrying out laser radiation for 10-60 min. The soluble material undergoes laser drilling. The preparation method has advantages of simple technology, easy operation, low production cost and wide raw material sources. Soluble starch, carboxy methyl starch, hydroxyethyl starch, carboxymethylcellulose sodium, ethyl cellulose or sodium alginate and their derivatives are medically proved to be safe medical materials, are generally used as pharmaceutic adjuvants and sustained release agents of medicines, and are also used to prepare absorbable hemostatic gauze such as Tailing absorbable hemostatic gauze. These materials are all dissoluble; the size of molecular weight is controllable; preferably, the molecular weight is 500-12000Dalton; more preferably, the molecular weight is 1000-40000 Dalton; and the materials all can be absorbed by body.

The invention discloses a production method of water-soluble hemostatic gauze. The production method comprises the following steps: carrying out sterilizing process on natural full-cotton gauze after preprocessing, sitallization processing, cross linking reaction, washing and drying, wherein the preprocessing is realized by modifying the natural full-cotton gauze by using ethanol or acetone; the sitallization processing is carried out for 1-2h by adopting a sodium hydroxide solution under the condition that the temperature is 20-30 DEG C and the rotational speed of a reaction vessel is 15-20 r / min; and the cross linking reaction is carried out for 1-2h at the temperature of 25-30 DEG C by adopting an ethanol chloroactic acid solution. The water-soluble hemostatic gauze has favorable functions of physical hemostasis, chemical hemostasis and physiological hemostasis, can rapidly realize hemostasis and diminish inflammation without medicaments, also prevent operation conglutination and be finally decomposed in the body to form monosaccharide absorbed by a human body.

The production process of water soluble hemostatic gauze includes the following steps: placing the degreased gauze into ethyl alcohol containing chloroacetic acid, oscillating, then placing it into high-concentration ethyl alcohol, using concentrated acid to regulate pH value to 6.5-8.5, finally immersing it into high-concentration ethyl alcohol, washing, drying and sterilizing by gamma ray so as to obtain the invented product which can be used for various hemostatic operations, protecting surface of wound and preventing formation of adhesion, also can be used moisture-proof material.

The invention discloses medical hemostatic gauze recovery equipment. The medical hemostatic gauze recovery equipment comprises a box body, an extruding cavity with an upward opening is formed in the box body, spring cavities are formed in the inner walls of the left side and the right side of the extruding cavity in a communicating mode, a first motor drives a threaded rod on the left side to rotate reversely, so that extruding plates pull baffles to be far away from each other, extruded hemostatic gauze falls into a separation cavity, after the hemostatic gauze is placed in the extruding cavity, a power mechanism drives connecting rods on the left side and the right side to be close to each other, so that the extruding plates are rotated to extrude the hemostatic gauze, then liquid in thehemostatic gauze is extruded out, and then fire is prevented from dying out when the hemostatic gauze is incinerated; and the squeezed liquid flows into a liquid cavity through a separation mechanism, the hemostatic gauze is fed into an incineration cavity through the separation mechanism, when the hemostatic gauze is incinerated, an iron rod intermittently moves up and down, so that the hemostatic gauze is driven to move up and down, then the hemostatic gauze is in full contact with air, incineration is accelerated, and it is ensured that the hemostatic gauze is completely incinerated.

An inflammation-relieving and antibacterial exterior-applied synthetic medicine is prepared from quinolone and amino acid through reaction. A soluble staltic gauze for treating wound is prepared through adding quinolone and amino acid to water or aqueous solution of alcohol, regulating concentration to 5-30 wt.%, reacting for 0.5-30 hr, mixing the resultant with soluble fibres in alcohol solution for 0.5-30 hr, and drying the soluble fibres. Said gauze can be filled in wound or used to cover on wound to promote healing of wound without secondary pollution.

The invention discloses a propolis hemostatic gauze. The propolis hemostatic gauze is prepared from the following raw materials in parts by weight: 6-8 parts of propolis, 1-2 parts of carbomer, 6-8 parts of gelatin, 2-4 parts of sodium alginate, 0.3-0.5 part of jojoba oil, 0.1-0.2 part of grape seed oil, 1-2 parts of hydroxyethyl cellulose, 2-4 parts of sodium carboxymethylcellulose, 0.05-0.1 part of D-panthenol, 0.1-0.2 part of polysorbate-80, 1-2 parts of auxiliary materials and 200-250 parts of water. The soluble hemostatic gauze is prepared by taking a natural substance propolis as a main material, has a good hemostatic effect and antisepsis and anti-inflammation effects, and can be used for promoting the healing of wounds, improving the immunity and providing nutritional ingredients needed by the healing of the wounds; and meanwhile, the propolis hemostatic gauze has a simple manufacturing process, is safe and environmentally friendly, has good biocompatibility, is easily absorbed by a human body and has no toxic or side effects.

The invention discloses a pectin hemostatic gauze which is characterized by being prepared from the following raw materials in parts by weight: 8-12 parts of pectin, 4-6 parts of gelatin, 1-2 parts of poloxamer 188, 3-5 parts of sodium alga acid, 1-2 parts of wheat germ oil, 1-2 parts of soybean oil, 0.1-0.2 part of polysorbate-80, 0.05-0.1 part of propylgallate, 1-2 parts of lactose, 1-2 parts of xylitol, 2-4 parts of sodium carboxymethylcellulose, 1-2 parts of auxiliary materials and 200-250 parts of water. A soluble hemostatic gauze is prepared by taking natural pectin as a main ingredient, has a good hemostatic function and can achieve the effects of resisting bacteria, diminishing inflammation and protecting the wound; and meanwhile, the pectin hemostatic gauze is rich in raw materials, simple in preparation process, low in cost, safe, environment-friendly and high in biocompatibility, is easily absorbed by a human body and does not have any toxic or side effect.

The invention relates to the field of medicines, and in particular relates to a preparation method and a preparation device of oxidized regenerated cellulose absorbable hemostatic gauze. The oxidized regenerated cellulose absorbable hemostatic gauze is characterized in that the preparation device comprises a liquid dispensing tank, a soaking groove and a liquid guiding module for connecting the liquid dispensing tank and the soaking groove, wherein the liquid dispensing tank consists of a capsule-shaped tank and three horizontal legs arranged at the bottom of the tank; the tank comprises a feeding part arranged on the top of the tank, a material receiving part arranged in the middle of the tank and a discharging part arranged at the bottom of the tank; a cleaning pipe is arranged in the center of the top of the feeding part and is embedded into the feeding part; a spray head is arranged at the bottom of the cleaning pipe; a manhole is formed in one side of the cleaning pipe; a water inlet hole is formed in the other side of the cleaning pipe; a backflow pipe and a liquid inlet pipe are arranged between the cleaning pipe and the water inlet hole.

The invention relates to the technical field of medical dressings and production processes of medical dressings, and in particular relates to a compound pseudo-ginseng, kaolin and bamboo fiber hemostatic gauze and a preparation method thereof. The hemostatic gauze comprises a base material, a hemostatic material and a binding agent, wherein the base material is made of a raw or regenerated bamboo fiber material; the hemostatic material is bonded to the base material; the binding agent is used for binding the hemostatic material to the base material; and the hemostatic material comprises a kaolin or kaolinite hemostatic clay material and pseudo-ginseng hemostatic powder. The base material of the hemostatic gauze provided by the invention comprises bamboo fiber, the hemostatic material comprises kaolin or kaolinite and pseudo-ginseng hemostatic powder, and the hemostatic clay material and the pseudo-ginseng hemostatic powder are bound to the bamboo fiber of the base material by using the binding agent, so that the hemostatic gauze is stable in property, the hemostatic clay material or the pseudo-ginseng hemostatic powder is not easy to drop off, and the hemostatic gauze is good in hemostatic effect.

The invention discloses a soluble hemostatic gauze. The soluble hemostatic gauze comprises the following components in percentage by weight: 25 to 40% of chlorination cellulose, 10 to 20% of alginate fibers, 5 to 9% of chitosan fiber, 3 to 5% of wood pulp, and the balance of viscose. According to the mode, the soluble hemostatic gauze has hydrophily, oxygen permeability and antibacterial performance, can be used for protecting the wound from polluting, is beneficial to growth of new tissue, and can be used for promoting the wound healing.

Disclosed is a soluble hemostatic gauze for diminishing inflammation, killing bacteria and calming pain, and its making method, which comprises the following raw materials (by weight portion), 0.1-0.3% of disodium hydrogen phosphate, 1-1.8% of sodium alginate, 0.5-2% of Carbomer, 1-10% of cationic surface active agent, 1-2% of polyethylene glycol, 1-4% of Tween-80, 0.1-1% of dimethyl silicon oil, 0.2-0.8% of sodium carboxymethylcellulose, 0.05% of benzocain and balancing ethanol solution.

The invention relates to a production process of water-soluble hemostatic gauze. Including: put the degreased gauze in 70-80% alcohol containing 2.5mol / L chloroacetic acid at 40-50°C and shake for 6 hours; then put the above-mentioned gauze in 70% alcohol containing 3-4mol / L sodium hydroxide Shake in ~80% alcohol for 6 hours, then put into 95% alcohol and adjust the pH value to 6.5~8.5 with concentrated hydrochloric acid. Finally, soak the gauze in 95% alcohol for washing, and then dry it in an environment with a temperature of 25-30° C. and a humidity of 40-55%, so that ordinary cotton fibers are converted into water-soluble fiber salts. After γ-ray sterilization, it is used for various hemostasis, wound protection and avoiding adhesion formation; it can also be used as a moisture-proof material. After use, the water-soluble hemostatic gauze can be dissolved in water into small molecular substances, which is beneficial to the absorption and utilization of animals and plants, and effectively solves the problem of environmental pollution caused by waste gauze.

The invention relates to a novel absorbable hemostatic material which is easy in preparation method, low in cost and good in hemostatic effect. At present most medical hemostatic materials in China are water-soluble hemostatic gauze, and the gauze does not have anti-inflammatory and anti-bacterial effects when being used for hemostasis, and has the defects that the hemostatic speed is low, the in vivo absorption time is long, an inflammatory reaction is easy to cause and the like, and therefore people turns to hemostatic powder, however, as existing hemostatic powder is complex to prepare, high in price, not ideal in hemostatic effect and the like, the hemostatic powder is not applied as a mainstream hemostatic product. The novel absorbable hemostatic material is a guluronic acid polymer generated by an complexation reaction or crosslinking reaction of a guluronic acid monomer, polyvinyl alcohol, lavender essential oil and clove essential oil. The novel absorbable hemostatic material is good in hemostatic effect, and has the advantages that the hemostatic speed is high, the in vivo absorption time is short, broad-spectrum sterilization and anti-inflammation effects are achieved, wound healing is promoted and the like, and in addition, the novel absorbable hemostatic material is not affected by the size and position of a wound surface, and widely applicable to the fast hemostasis for war wound, trauma and other conditions.

The invention relates to a medical article, in particular to a medical band-aid. The medical band-aid comprises a belt body, wherein the two ends of the belt body are provided with adhesive sticker layers. The medical band-aid is characterized in that: the middle part of the belt body is provided with an openable observation window; the observation window is provided with a handle which can be attached to the belt body; the internal surface of the observation window is provided with a Chinese medicament layer which is provided with a soluble hemostatic gauze layer; and a protective film layer is formed on the gauze layer. Therefore, the medical band-aid has the advantages of simple structure, convenient use, high air permeability and capability of observing the wound healing condition.

The invention relates to the technical fields of a medical dressing and a production process thereof, in particular to bamboo fiber hemostatic gauze and a preparation method thereof. The hemostatic gauze consists of a base material made from a raw or regenerated bamboo fiber material , a kaolin or kaolinite hemostatic clay material which is bonded to the base material and a binding agent for binding the hemostatic clay material to the base material. According to the hemostatic gauze disclosed by the invention, the base material in the bamboo fiber hemostatic gauze consists of bamboo fibers, the hemostatic clay material consists of kaolin or kaolinite and the hemostatic clay material is bonded to the bamboo fibers of the base material by virtue of the bonding agent, so that a stable nature is guaranteed, the hemostatic clay material is prevented from falling off easily, and the hemostatic gauze is good in hemostatic effect.

The invention relates to a paederia scandens fiber extraction process which includes that the paederia scandens stems are tidied, cut and bundled, and impregnated in water, and then the paederia scandens stems are taken out from water and scoured, the stems are peeled after being washed in cold water and the bast is maintained, than the peeled stems are washed through water or soaping, and embathed in sulfuric acid solution; and then the stems are scoured in caustic soda or ammonium oxalate solution in which sodium silicate with mass concentration of 1-2% and STPP with mass concentration of 1-2% are added, and then the stems are washed through water or soaping; subsequently, the stems are embathed in sulfuric acid solution, is washed through water or soaping, is dehydrated and fluffed, and is finally dried under the constant temperature of 100-120 DEG C. the invention has the advantages that: the source of feed is wide, the development cost is low, the application of the fiber is broad, the fiber and textile not only can be applicable to spinning and clothing industry, but also can be applicable to medical operation suture lines and hemostatic gauze in medical and sanitation field, also have superior advantages comparing with common fibers, and have higher practicality.

The invention relates to the technical field of medical equipment, and discloses a hemostatic gauze collection and counting method for an operating room and a counting device. When gauzes pass througha conveying channel, a pressure sensing device is triggered, the passing gauzes are counted through the pressure sensing device, and the number of the gauges is displayed on a display on the outer side of a cylinder body, and then whether all the gauzes have been taken out or not can be judged only by checking the number of the gauzes which are taken for use, so that the gauzes can be effectivelycounted, medical personnel are prevented from leaving the gauzes in the bodies of patients, and the operating safety is improved.

The invention discloses hyaluronic-acid-containing hemostatic gauze. The hyaluronic-acid-containing hemostatic gauze is characterized by being prepared from the following raw materials in parts by weight: 2-4 parts of folium artemisiae argyi, 1-2 parts of calendula, 2-4 parts of tremella, 1-2 parts of peach gum, 8-12 parts of gelatin, 0.3-0.5 part of hyaluronic acid, 2-4 parts of sodium alginate, 3-5 parts of sodium carboxymethylcellulose, 0.3-0.5 part of sodium dihydrogen phosphate, 0.2-0.4 part of ethylene diamine tetraacetic acid, 0.1-0.2 part of polyvinylpyrrolidone, 1-2 parts of auxiliary materials, and 200-250 parts of water. The soluble hemostatic gauze disclosed by the invention is collaboratively prepared from natural high polymer materials, is good in hemostatic function, is easy absorbed by human body, is good in biocompatibility, and is free from toxic and side effects; the soluble hemostatic gauze is capable of astringing to stop bleeding, and inhibiting bacteria and resisting inflammation by extracting and compounding the natural effective ingredients of calendula and folium artemisiae argyi, has a controlled-release function, effectively prolongs the action time, and achieves a better use effect.

The invention discloses a preparation with double functions of stopping bleeding and sustainedly releasing a granulocyte colony stimulating factor and a preparation method thereof in the technical field of medicine preparation. The preparation consists of glucan particles containing the granulocyte colony stimulating factor, a degradable sustained / controlled release material and a hemostatic material framework. By combining surgical hemostatic gauze with a medicine sustained-release system consisting of the glucan particles containing the granulocyte colony stimulating factor and a degradable sustained / controlled release material coating, a medicine loading procedure is added in a hemostatic gauze production process in a preparation process; and the method is simple and practicable and is suitable for various medicines.

The invention discloses a preparation method of a soluble hemostatic textile material, and belongs to the technical field of preparation of soluble hemostatic textile materials. The preparation methodcomprises the steps of firstly, preparing spinning raw pulp fibers and antibacterial liquid; then preparing a fiber membrane, and preparing antibacterial fibers on the basis of the fiber membrane; and finally, treating the antibacterial fibers with 4 mol / L of a chloroacetic acid reaction solution, adjusting pH to be neutral with a hydrochloric acid solution and finally washing with deionized water to obtain the soluble hemostatic textile material for a hemostatic gauze. The gauze can be well adhered to a wound, and the comfort of the hemostatic gauze in use is improved. The prepared fibers have excellent antibacterial and deodorizing properties, and also have good air permeability and water absorption. The solubility of the fiber material is improved, and meanwhile, the textile material has a hemostatic function. Wound healing is promoted, adhesion is avoided, and protection to the wound is improved.

The invention discloses a manufacture device and method for a hemostatic gauze product with high stability and absorbability. The device comprises a tank body, a tank cover matched with the tank body, a stainless steel plate in the tank body, an ultrasonic generator at the bottom of the tank body, a feed pipe and a liquid discharge port, wherein an air inlet and an air outlet are formed in the tank cover, and the feed pipe, the air inlet, the air outlet and the liquid discharge port are each provided with a valve. The manufacture device for the hemostatic gauze product with high stability and absorbability is designed according to the requirements for cellulose pretreatment, oxidation, cleaning and aftertreatment and is convenient to operate.

The invention relates to the technical field of medical equipment, and discloses a hemostatic gauze collection and treatment device for an operating room. The hemostatic gauze collection and treatmentdevice comprises a cylinder body; a filter ring is fixedly connected to the top of a rotary disc; uniformly distributed transmission assemblies are fixedly installed in a bottom plate; an air channelis formed in the side wall of a center seat; a baffle is fixedly connected to the left side of the center seat; a conveying channel corresponding to the baffle is formed in a transition plate; and apressure sensing device is installed in the transition plate and in the conveying channel. The rotary disc is started; blood is thrown out from the interiors of gauzes under the action of centrifugalforce, so that solid-liquid separation is achieved; according to the Coanda effect, spirally downward annular airflow is formed on the outer side of the airflow center seat, so that the gauzes are attracted to fall into a storage chamber through the baffle one by one; and the gauzes are counted through the pressure sensing device, and whether all the gauzes have been taken out or not can be judged, so that medical personnel are prevented from leaving the gauzes in the bodies of patients and the device is more sanitary and safer.