76results 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 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 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 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 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 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 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.

The invention discloses a multifunctional air bag type anal tube which comprises an anal tube body, an air bag, an air conveying pipe and a valve. The anal tube body penetrates into the air bag and is tightly attached to the two ends of the air bag. Two symmetric sides between the inner wall and the outer wall of the anal tube body are each provided with an anal tube wall tunnel. Two small holes are formed in the positions, corresponding to the outer wall of the anal tube body, of each anal tube wall tunnel, and serve as the first tunnel opening and the second tunnel opening respectively. The second tunnel openings are formed in the air bag, and the first tunnel openings are formed outside the air bag. The first tunnel openings are connected with one end of the air conveying pipe. The other end of the air conveying pipe is connected with one end of the valve. The other end of the valve is connected with a syringe. By means of the multifunctional air bag type anal tube, effective compression hemostasis is carried out on an inner wound surface of the anus of a patient after an operation, and cold normal saline is injected into the air bag, so that anal temperature is lowered and anal pain after the operation is relieved. Accordingly, the probability of urination difficulty caused by the anal pain is reduced, the probability of catheter indwelling is lowered, and therefore the probability of urinary tract infection is reduced.