77results about How to "Play a hemostatic effect" patented technology

The invention relates to a biocompatible pre-gelatinized modified starch. The water absorbency is not less than one time, and the biocompatible pre-gelatinized modified starch is taken as biocompatible hemostatic material, biocompatible anti-blocking material, biocompatible tissue-healing promoting material, biocompatible surgical sealant or biocompatible wound closure tissue glue. The invention has the advantages that the biocompatible pre-gelatinized modified starch is directly acted on the wounded area with blood for immediately stopping bleeding, has obviously increased water absorbency and speed of water absorption and greater viscosity and stickiness and further plays the role in preventing the tissue and the blood vessel from being damaged during the process of stopping bleeding; the modified starch is easy to swell or dissolve in water, and is washed by normal saline after the bleeding stopping so as to reduce the residual in the body, to be favorable for wound healing and to avoid the pain due to tearing the gauze and the bandage out; the pre-gelatinized modified starch has the actions of bacterial resistance and anti-inflammatory; and the pre-gelatinized modified starch is stable, not easy to decompose, long in guarantee period, convenient for storage, resistant at high pressure and low pressure, resistant at high temperature and low temperature and not easy to change the physicochemical characteristics.

The present invention discloses a kind absorptive bone hemostatic for surgical and orthopedic operation. The absorptive bone hemostatic includes mainly chitosan or modified chitosan 20-95 weight portions, konjaku glucomannan or carboxymethyl modified konjaku glucomannan 5-80 weight portions, and water in 50-500 % of total solid matter. It is prepared through mixing powder or water solution of the material. The absorptive bone hemostatic has simple operation, good compatibility, no irritation and inflammation reaction, and can induce bone growth.

The invention relates to a hemostatic anti-adhesive membrane and a preparation method of the hemostatic anti-adhesive membrane. The preparation method of the hemostatic anti-adhesive membrane comprises the following steps: dissolving chitosan in acetic acid aqueous solution, carrying out electrostatic spinning, thus obtaining a chitosan fibrous membrane, removing residual acid in the chitosan fibrous membrane, immersing the chitosan fibrous membrane in acid polysaccharide aqueous solution, thus obtaining a compound fibrous membrane, and finally, carrying out aftertreatment on the compound fibrous membrane, thus obtaining the hemostatic anti-adhesive membrane. The finally obtained hemostatic anti-adhesive membrane is mainly composed of the chitosan fibrous membrane and acid polysaccharose, wherein the content of the acid polysaccharose is 5-80 wt%, the acid polysaccharose is polysaccharose containing carboxylate radical ions, the acid polysaccharose is bonded to chitosan through amido bonds, and thus the chitosan fibers realize covalent cross-linking. The finally prepared hemostatic anti-adhesive membrane is high in tenacity, good in fitting performance, and high in biocompatibility, can completely degrade in the body, and belongs to the ideal hemostatic anti-adhesive material.

The invention discloses an integrated bracket embedder, which comprises a front handle and a rear handle, wherein the front end of the front handle is provided with an outer pipe; the top end of the outer pipe is movably connected with a cutting head; a middle pipe and a bracket are arranged in the outer pipe; the rear handle comprises a stainless steel pipe for supporting and an inner pipe which is positioned in the stainless steel pipe; the top end of the inner pipe is fixedly connected with the cutting head; one end of the middle pipe is butted against one end of the bracket, and the other end of the middle pipe is mutually connected with the stainless steel pipe; one end of the bracket is close to the cutting head, and a certain gap is reserved; and when the front handle is withdrawn along the stainless steel pipe, the outer pipe is withdrawn simultaneously and is separated from the cutting head, the positions of the middle pipe and the rear handle are kept unchanged, and the bracket is automatically released. According to the integrated bracket embedder, after a focal organ is cut open, the bracket can be directly embedded, a passage for the focal organ and the exterior is established, other surgical operations such as infected matter or necrotic tissue removal can be continuously performed by using other instruments, the comprehensiveness of the surgery is increased, and a patient can be prevented from suffering from the pain of multiple surgeries.

The invention belongs to the technical field of biomedical engineering, and particularly relates to a chitosan quaternary ammonium salt porcine acellular dermal matrix dressing material and a preparation method thereof. The preparation method of the chitosan quaternary ammonium salt porcine acellular dermal matrix dressing material specifically comprises the following steps: S1, preparing a chitosan quaternary ammonium salt; S2, processing a porcine acellular dermal matrix; and S3, preparing the chitosan quaternary ammonium salt porcine acellular dermal matrix dressing material. The chitosan quaternary ammonium salt porcine acellular dermal matrix dressing material disclosed by the invention completely reserves morphological structures and components of cells, has the characteristic of low antigenicity, and meanwhile can induce fiber-forming cells and vascular endothelial cells with regeneration capacity to grow therein.

The invention specifically relates to novel anti-microbial and hemostatic gauze and a preparation method of the novel anti-microbial and hemostatic gauze. The preparation method comprises the following steps: carrying out modified treatment including alkalization, etherification, neutralization, ethanol washing and the like on medical degreasing cotton gauze, thus obtaining sodium carboxymethylcellulose gauze; and carrying out a certain synthetic process (ion exchange) on the sodium carboxymethylcellulose gauze, thus obtaining the sodium carboxymethylcellulose gauze. The prepared carboxymethylcellulose metal salt gauze has the hemostasis function and also has the excellent anti-microbial property, the purposes of stopping bleeding and diminishing inflammation can be rapidly realized without adding of any medicines, meanwhile, the surgical adhesion can be prevented, and finally, the product is decomposed into monosaccharide in the body so as to be absorbed by the human body.

This invention relates to a preparation method for calcium chitin characterizing in mixing the chitin with powder of CaCl2, calcium acetate, calcium gluconate, calcium lactate, calcium maltate or citrate calcium malate to be reacted, filtered, cleaned, dewatered, dried, crushed and virus eliminated to get the calcium chitin, which is a new type of hemostatic by acting on the red blood cells in the blood, suppressing soluble fiber protein and activating thrombin so as to arrest bleeding.

The invention relates to a wound treatment agent prepared by using traditional Chinese medicine materials. The wound treatment agent is used for treating wounds and promoting wound healing. The wound treatment agent provided by the invention is prepared from Taiwan beautyberry leaf, dry or fresh longleaf garden burnet root, rosewood heart wood, dry or fresh bunge corydalis herb, myrrh, ligusticum, salvia chinensis, prepared rehmannia root, redroot gromwell, and licorice root. The medicine materials are decocted according to a certain ratio; the obtained mixture is filtered; and the filtrate is concentrated, such that a traditional Chinese medicine liquid with a certain concentration is prepared. The medicine liquid has disinfecting and sterilizing effects of common wound sterilizing liquids, and has a fast haemostatic effect which can not be provided by current wound sterilizing liquids. Also, the wound treatment agent provided by the invention also has a wound healing promoting effect. The wound treatment agent provided by the invention is prepared by using pure natural traditional Chinese medicine materials, and does not contain hormone. The preparation method is simple, and the cost is low.

The invention belongs to medical auxiliary apparatuses, in particular discloses a nasal meatus breathing tampon tube, comprising a breather tube and a hemostatic layer 1 which is coated on the outer surface of the breather tube 2; the hemostatic layer is a spongy layer of which the thickness is at least 1mm. For the breather tube, the inner diameter is 3mm-10mm, the outer diameter is 5mm-12mm, and the axial length is 25mm-75mm; the axial length of the spongy layer is 20-70mm, and the axial length of the sponge layer is smaller than that of the breather tube, one end of the sponge layer aligns with one end of the breather tube, and the other end thereof is shorter than that of the breather tube. Through holes 3 are arranged on the nasal meatus breathing tampon tube, the spacing of the adjacent through holes is 8mm-10mm, and the aperture is 3mm-5mm. As the nasal meatus breathing tampon tube of the invention is composed of the breather tube and the spongy layer, and the tube wall is provided with through holes, therefore, the tampon tube has the characteristics of breathing, plasticity and hemostasis, increases comfort of patients, and has simple preparation and convenient use.

The invention discloses a growth factor compound dressing capable of adhering a tissue fissure and a preparation method thereof. The compound dressing comprises an alginate gel layer and a non-woven fabric layer, wherein the alginate gel layer is prepared from sodium alginate, calcium carbonate, glucolactone, glycerinum, sodium carboxymethyl cellulose, allantoin, alpha-cyanoacrylate, cell growth factors and a protective agent. The dressing can be used for replacing a suture line to a certain extent, radically effectively promoting wound healing to prevent pains of surgical suturing for patients with relatively deep wounds, and effectively reducing generation of scars.

The invention relates to a wound treatment agent prepared by using traditional Chinese medicine materials. The wound treatment agent is used for treating wounds and promoting wound healing. The wound treatment agent provided by the invention is prepared from Taiwan beautyberry leaf, dry or fresh longleaf garden burnet root, rosewood heart wood, dry or fresh bunge corydalis herb, myrrh, ligusticum, salvia chinensis, prepared rehmannia root, redroot gromwell, and licorice root. The medicine materials are decocted according to a certain ratio; the obtained mixture is filtered; and the filtrate is concentrated, such that a traditional Chinese medicine liquid with a certain concentration is prepared. The medicine liquid has disinfecting and sterilizing effects of common wound sterilizing liquids, and has a fast haemostatic effect which can not be provided by current wound sterilizing liquids. Also, the wound treatment agent provided by the invention also has a wound healing promoting effect. The wound treatment agent provided by the invention is prepared by using pure natural traditional Chinese medicine materials, and does not contain hormone. The preparation method is simple, and the cost is low.

The invention discloses a hemostatic device of a recto and an anal canal. The hemostatic device comprises a hemostatic tube body, a gauze sleeve and an auxiliary plug rod, the hemostatic tube body comprises a first tube opening and a second tube opening at two ends, and a first flange is arranged on the outer edge of the first tube opening, fixing holes are formed in the flange, and multiple medicine holes are formed in the tube wall of the hemostatic tube body; two ends of the gauze sleeve are open, and the gauze sleeve is connected to the hemostatic tube body in a sleeving mode; the auxiliary plug rod can be inserted into the hemostatic tube body and limited through a second flange which is arranged in the second tube opening. The hemostatic device can effectively stop bleeding by compression, not only takes a hemostatic effect, but also avoids anastomotic stoma injury and wound bleeding, and the diameter of the column-shaped device can be adjusted in a seriation mode, so that the hemostatic device accords with the anal canal diameter of different patients. Meanwhile, it is guaranteed that the hemostatic device cannot slide out automatically through multiple modes, the hemostatic device can also be prevented from retrograding into the recto, the hemostatic device is prevented from sliding out too early and thus cannot take the effect of stopping bleeding, and the situation is avoided that since materials are placed again, sufferings of the patients are increased.

The invention discloses a high-liquid-absorption silk fibroin hemostatic film and a preparation method thereof, wherein the high-liquid-absorption silk fibroin hemostatic film comprises the followingcomponents in parts by weight: polyethylene oxide of 5-25 parts, fibroin of 10-50 parts, sodium alginate of 5-15 parts and nanometer silicon dioxide of 0.5-1 part. The preparation method is realized through the following steps: (1) preparation of a hemostatic membrane spinning material, (2) spinning of the hemostatic membrane, and (3) cross-linking treatment of the hemostatic membrane. The silk fibroin hemostatic membrane with high liquid absorption has good hemostatic effect, can absorb a large amount of wound seepage, and has good air permeability and biocompatibility.

The invention discloses cross-linked dextran microparticles for hemostasis, and a preparation method of the cross-linked dextran microparticles. The cross-linked dextran microparticles are prepared bytaking epoxy chloropropane as a cross-linking agent and adopting a reverse suspension method; the obtained product is detected to be low in residual amount of the cross-linking agent and good in biocompatibility, thus being suitable for being used as a hemostatic material. In a preparation process of the cross-linked dextran microparticles, other organic solvents do not need to be introduced forwashing, so that the phenomenon that the residue of the organic solvents in the product affects the quality of the product is avoided. The cross-linked dextran microparticles prepared by the method have irregular edge contours, are not easily displaced after being used, and can be fixed at a hemostatic site; the cross-linked dextran microparticles prepared by the method have biodegradability, arefree from immunogenicity and cytotoxicity, and can be used as hemostatic powder in clinical practice.

The invention relates to a lung puncture localization needle with the advantages of simple structure, low cost, operation convenience, low bleeding risk and high localization accuracy. The lung puncture localization needle consists of a needle core, a cannula and a sacculus tube, wherein the needle core and the sacculus tube can be inserted into the cannula; the sacculus tube is made of elastic fluorescent materials; the inside of the sacculus tube is hollow; a valve is arranged at an opening of one end; only the inward injection can be realized, but the automatic outward discharging cannot be realized; and the other end of the sacculus tube is connected with a sacculus, so that the sacculus expands or shrinks since air (or liquid) is injected into or extracted out from the opening. The needle core is inserted into the cannula to be tightly fit and is then pierced into the human body; the needle core reaches the focus through CT (Computerized Tomography) guidance; the needle core withdraws; the sacculus tube is inserted to the bottom; the air (or liquid) is inserted, so that the sacculus expands; then, the sacculus tube withdraws; the sacculus tube is left in the human body; and during subsequent operation, the focus can be localized by localizing the expanded fluorescent sacculus.

The invention belongs to the field of medical chitosan dressings, and in particular relates to a preparation method of a low-molecular weight chitosan dressing. The preparation method of the low-molecular weight chitosan dressing comprises the following steps: (1) by using euphausia superba as raw materials, and preparing chitin through a lactic acid bacteria fermenting method; (2) removing acetyl on the chitin through the combination of alkali liquor and ultrasonic technology to prepare the chitosan; (3) purifying the acetic acid to extract the low-molecular weight chitosan; and (4) preparing the low-molecular weight chitosan dressing by using the low-molecular weight chitosan powder. Through the adoption of the preparation method disclosed by the invention, the pollution of the acid-base to the environment is greatly reduced, and the low-molecular weight chitosan prepared by using the euphausia superba through the microorganism fermentation and ultrasonic technology and the dressing thereof have good antibacterial and hemostatic effect, the allergic reaction is reduced, and the dressing can be sprayed to effectively achieve the hemostatic effect when the wound is bruised and massive in bleeding.

The invention discloses a preparation method of a medical bio-based compound hemostatic dressing, belonging to the technical field of dressing preparation. The preparation method is characterized by preparing treated ophicalcite powder by ball-milling, sieving and roasting ophicalcite, then stirring and mixing xanthan gum, sodium alginate, deionized water and lyophilized powder of thrombin to obtain thrombin coated compound gel, then preparing a collagen solution by using pigskin collagen powder as the raw material, subjecting a glutaraldehyde solution as a cross-linking agent to cross-linking reaction with the thrombin coated compound gel, freeze-drying, grinding and sieving a reactant and then mixing the powder with the ophicalcite powder, thus obtaining the compound hemostatic dressing. The medical bio-based compound hemostatic dressing has better hemostatic effects and certain antibacterial effects, is powdery, is directly scattered on wounds, avoids the problem that the dressing adheres to the wounds, thus causing secondary injuries, has good biocompatibility with the wounds and can be applied on a large scale.

The invention relates to a composite hemostatic anti-adhesion dressing and a preparation method and application thereof. The dressing is obtained by coating a mixture of chitosan particles and a sodium carboxymethylcellulose solution on a carboxymethylated cotton fabric. The method comprises alkalizing the pretreated knitted cotton and then performing etherification treatment to obtain the carboxymethylated cotton fabric; dispersing the chitosan particles in the sodium carboxymethylcellulose solution to obtain a mixed solution, coating the mixed solution on the obtained carboxymethylated cotton fabric and drying. The dressing has good water absorption, excellent hemostatic properties and gelation performance.

The invention discloses a negative-pressure-drainage wound treating device. The negative-pressure-drainage wound treating device comprises a negative-pressure sponge, a sealing unit, a suction disc, adrainage tube, a washing tube and a plurality of drainage channels and is characterized in that the negative-pressure sponge is arranged above a wound, the sealing unit is arranged on the upper surface of the negative-pressure sponge and the suction disc, the suction disc comprises a bottom disc and an obtuse-angle connector connected with the drainage tube, the bottom of the bottom disc is provided with a through hole, the interior of the connector is communicated with the through hole, the connector penetrates the circular hole of the sealing unit, the washing tube is communicated with thelateral wall of the drainage tube, the drainage channels are fixedly peripherally arranged along the bottom of the bottom disc and communicated with the through hole, and each drainage channel is provided with a plurality of drainage holes; the negative-pressure sponge sequentially comprises a hemostasis layer, an adhesion-preventing layer, a support layer, a hemostasis layer and an adhesion-preventing layer from top to bottom. By negative-pressure-drainage wound treating device, effective hemostasis and antibacterial effects can be achieved.

The invention discloses special traditional Chinese medicine gargle for periodontitis and a preparation method thereof. The special traditional Chinese medicine gargle is prepared from the following components in parts by weight: 80 to 120 parts of honeysuckle flower, 70 to 100 parts of rhizoma imperatae, 50 to 80 parts of fructus arctii and 40 to 60 parts of liquorice root. The preparation methodcomprises the following steps: putting the honeysuckle flower, the rhizoma imperatae, the fructus arctii and the liquorice root into a sealed flask, wherein the water adding amount is 8 to 10 times of the amount of medicinal materials; heating to be boiled and then decocting with small fire for 2 to 4h; removing medicinal residues and taking decoction; putting the medicinal residues obtained by step 1 into the sealed flask, wherein the water adding amount is 6 to 8 times of the amount of the medicinal materials; heating to be boiled and then decocting with small fire for 1 to 3h; removing medicinal residues, and combining the decoction with the decoction obtained by step 1; after cooling, filling into a sealed glass bottle to obtain the gargle. The gargle disclosed by the invention can beused for alleviating pains and eliminating bleeding gums, and is convenient to prepare and low in price.

The invention belongs to the technical field of medical instruments and particularly relates to a chitosan sponge mat adhesive bandage capable of rapidly stopping bleeding and a preparation method of the chitosan sponge mat adhesive bandage. The chitosan sponge mat adhesive bandage comprises medical isolation paper, a sponge mat layer and adhesive cloth, wherein the sponge mat layer is located in the middle section of the adhesive cloth, the adhesive cloth and the sponge mat layer are adhered with the isolation paper, and the sponge mat layer contains a rapid bleed-stopping medicament; and the rapid bleed-stopping medicament contains the following components in parts by mass: 35-55 parts of a chitosan mixture, 10-15 parts of a glucose water solution and 5-8 parts of mannose. The chitosan sponge mat adhesive bandage provided by the invention is capable of rapidly and effectively stopping bleeding, has the effects of resisting bacteria, easing and relieving pain, promoting wound healing and the like, has no toxicity and irritation and is high in use safety and applicable to the medical rapid bleed stopping, the promotion of wound healing and the like.

The invention discloses a facial tissue detacher with a facial nerve protection function, and relates to the technical field of skin detaching. The detacher comprises tong handles which are hinged toeach other, an angle-adjustable miniature camera is hinged to the hinged ends, the control end of the miniature camera is installed at one sides of handheld holding rings, facial nerve pictures in thefacial tissue detaching process are taken, and a first spherical detaching head and a second spherical detaching head are installed at the working end, the first detaching head and the connected working end are of a hollow structure, and condensed gas or liquid is injected in the operation process for condensation and bleeding stopping; the interior of the second detaching head is equally dividedinto a drug slow release cavity and a negative pressure suction cavity, slow-release drugs are injected into the drug slow release cavity through an installed valve, and the negative pressure suctioncavity conducts negative-pressure suction of waste liquid. According to the facial tissue detacher, through the design of the spherical head shape of the working end, the facial nerves are preventedfrom being injured; meanwhile, the detacher has an auxiliary function, detaching of the facial tissue is facilitated, the structural design is reasonable, the operation is efficient and quick, and thedetacher is suitable for application and popularization.

The present invention provides an inflatable parotid region pressure bandage, and relates to the field of medical instruments. The inflatable parotid area pressure bandage comprises a fixing belt, a left fixing portion disposed at the left end of the fixing belt, and a right fixing portion disposed at the right end of the fixing belt. The left fixing portion and the right fixing portion are in detachable fixed connection to form an annular inflatable parotid region pressure bandage. The inflatable parotid region pressure bandage further comprises a plurality of air bags for pressurizing a patient's parotid region; and the air bags are detachably fixed to the fixing belt. According to the inflatable parotid area pressure bandage, the air bags and the fixing belt are connected by detachablefixed connection, so that the air bags can be detached, and different pressure air bags are replaced in different rehabilitation stages of the patients to make the air bags have more pressing effect and to speed up the recovery of the patients; and the inflatable parotid area pressure bandage effectively solves the problem that the strength of the pressure bandaging is difficult to adjust after the bandage is wrapped in the prior art.

The invention relates to a blood drawing and nursing device for pediatrics department and belongs to the technical field of the structure of the blood drawing and nursing device for the pediatrics department. The blood drawing and nursing device comprises a shielding cover, wherein a child hand stretching-in end opening I is formed in one end of the shielding cover and a doctor blood sampling stretching-in end opening II is formed in the other end of the shielding cover; the diameter of the end opening I is smaller than that of the end opening II; the axial section of the shielding cover is in a right trapezoid shape; the horizontal plane on one side of the shielding cover is fixedly mounted on a blood sampling tabletop; an LED (Light Emitting Diode) illumination device is mounted on the inner wall of the shielding cover; a switch for opening and closing the illumination device is mounted on the outer wall of the shielding cover; a through hole is formed in the part, close to the end opening I, on the shielding cover; the through hole penetrates through the two sides of the shielding cover; the distance between the through hole and the blood sampling tabletop is 2-3cm; a blade is mounted on the hole wall of the through hole; a roller and a containing groove for containing disinfection cotton are arranged on the outer wall of the shielding cover; an adhesive tape is wound on the outer part of the roller and a traction head is arranged at the other end of the adhesive tape. The blood drawing and nursing device for the pediatrics department has a reasonable structure and design, can shield a needle head and has a bleeding stopping function.

The invention discloses a reversely buckled rapidly connected aorta composite stent which comprises an aorta arch artificial blood vessel and a stent artificial blood vessel, wherein one end of the aorta arch artificial blood vessel is connected with one end of the stent artificial blood vessel. The stent is characterized in that a reversely buckled connector is arranged at the connecting part ofthe aorta arch artificial blood vessel and the stent artificial blood vessel; the reversely buckled connector comprises a connecting ring; the aorta arch artificial blood vessel is connected with oneend of the connecting ring; the stent artificial blood vessel is connected with the other end of the connecting ring; an elastic reversely buckled ring is arranged at one end facing to the aorta archartificial blood vessel, of the connecting ring; the elastic reversely buckled ring is positioned at the periphery of the aorta arch artificial blood vessel; an arc-shaped groove is formed in a part in adjacent connection with the connecting ring, of the outer circumferential surface of the elastic reversely buckled ring; and the elastic reversely buckled ring is provided with a rapid tightening structure. The aorta composite stent disclosed by the invention can be rapidly and reliably fixed on an aorta blood vessel, meanwhile, a hemostasis function can be achieved, suture which takes time canbe avoided, the profound hypothermia circulation arrest time can be greatly shortened, and the survival rate of patients can be increased.

The invention provides a tumor biopsy apparatus, and relates to the technical field of medical apparatus and instruments. By the aid of the tumor biopsy apparatus, the problem of deficiency of tumor biopsy apparatuses suitable for extracting tumor samples during endoscopic surgery can be solved. The tumor biopsy apparatus comprises a biopsy gun and a puncture needle. The biopsy gun comprises a shell with a cavity, a sleeve is mounted in the cavity, an end of the sleeve extends out of the cavity, a first handle is mounted on the sleeve, the sleeve is provided with a puncture needle accommodating cavity along the length direction, the first handle can drive the sleeve to slide along the cavity, and a fixing assembly for fixing the puncture needle is mounted on the shell; a sample injection groove is formed in an end of the puncture needle, and the puncture needle is connected with the shell by the fixing assembly. The tumor biopsy apparatus has the advantage that tumor can be sampled by the aid of the tumor biopsy apparatus during endoscopic surgery.

The invention belongs to the technical field of microcosmic radio positioning navigation, and relates to a surgical navigation system based on a radio frequency positioning chip. Beacons capable of transmitting signals are used for marking focuses and blood vessels, a scalpel is positioned in real time, a detector is used for receiving related signals, the distance between each beacon and the detector is obtained according to an RSSI distance measurement method, a real three-dimensional coordinate system is constructed, coordinates of each beacon are obtained, and the positioning accuracy of the scalpel is improved. A Kalman filtering algorithm metal detection technology is combined to carry out beacon position correction on a beacon, a virtual three-dimensional coordinate system is constructed through three-dimensional fusion of a corresponding CT image, and a real-time navigation coordinate system is obtained through mapping. Finally, the effects of assisting the operation, improving the accuracy, shortening the operation time and reducing the trauma are achieved.

The invention discloses a finger sleeve blood-expelling hemostasis ring, which comprises an inner cylinder wall, an outer cylinder wall, a silicone rubber ring and a hemispherical silicone rubber shell. An air chamber is formed between the inner cylinder wall and the outer cylinder wall. The silicone rubber shell is internally and hermetically connected with an air inlet connector used for inflating the air chamber. A dressing layer is adhered to the inner side face of the inner cylinder wall. Quick-acting hemostatic powders are applied to the dressing layer. The outer side surface of the outer cylinder wall is embedded with a plurality of sheet coil springs which are wound towards the outer side in the length direction of the outer cylinder wall. The sheet coil springs are uniformly distributed on the outer side surface of the outer cylinder wall at intervals along the circumference of the outer cylinder wall. The left ends of the sheet coil springs are embedded in the outer side surface of the silicone rubber shell. The right ends of the sheet coil springs are adhered to the silicone rubber ring. The hemostasis ring is convenient to use and only needs to be connected with compressed air in the process of dispelling blood and stopping bleeding. The hemostasis ring can be automatically coiled and repeatedly used after being deflated. The hemostasis ring is convenient to store and free of occupied space when being wound up.

The invention discloses a topical spray for treating intractable skin ulcer. The topical spray is prepared from puerarin, sophora flavescens, golden cypress, golden larch bark, oldenlandia diffusa, gallnut, divaricate saposhnikovia roots, borneol and recombinant human basic fibroblast growth factor powder. The topical spray is prepared by the following steps of firstly crushing the raw materials and then adding 95% ethanol for percolation to prepare a traditional Chinese medicine extract solution; adding the recombinant human basic fibroblast growth factor powder for mixing evenly; dissolving taken menthol by using 75% ethanol to serve as a corrigent; and adding tween-80 for solubilizing and then mixing evenly to obtain a finished product spray. An advanced modern medicine preparation technology is used, new components are scientifically added on the basis of reserving effective components of a traditional Chinese medicine preparation, traditional dosage and ratios of the raw materials are changed, the new components are matched with the added oldenlandia diffusa, gallnut, divaricate saposhnikovia roots and the like, so that the therapeutic effects of resisting bacteria, relieving pain, clearing heat and dry dampness of the topical spray are strengthened; and meanwhile, western medicine components are added, so that the prepared topical spray is more convenient to use, fast to take effect and more lasting in medicinal effect.