746results about How to "Reduce infection rate" patented technology

A method is provided for depositing a hard wear resistant surface onto a porous or non-porous base material of a medical implant. The wear resistant surface of the medical implant device may be formed by a Laser Based Metal Deposition (LBMD) method such as Laser Engineered Net Shaping (LENS). The wear resistant surface may include a blend of multiple different biocompatible materials. Further, functionally graded layers of biocompatible materials may be used to form the wear resistant surface. Usage of a porous material for the base may promote bone ingrowth to allow the implant to fuse strongly with the bone of a host patient. The hard wear resistant surface provides device longevity, particularly when applied to bearing surfaces such as artificial joint bearing surfaces or a dental implant bearing surfaces. An antimicrobial material such as silver may be deposited in combination with a metal to form an antimicrobial surface deposit.

Methods of manufacturing dental prosthesis/implants each to replace a non-functional natural tooth positioned in a jawbone of a specific pre-identified patient are provided. An example method includes the steps of receiving imaging data such as x-ray image data and surface scan data of a dental anatomy and/or a physical impression of the dental anatomy of a specific preidentified patient. The steps can also include forming a three-dimensional virtual model of at least portions of a non-functional natural tooth positioned in the jawbone of the specific pre-identified patient based on the imaging and surface scan data, virtually designing a dental implant based upon the virtual model, exporting the data describing the designed dental implant to a manufacturing machine, and custom manufacturing the dental implant for the specific patient.

Devices and methods for draining excess lymph fluid are disclosed. The device can be fixed to the blood vessel adjacent to the thoracic duct. The device can have a port for withdrawing lymph fluid exiting the thoracic duct. The device can have a cannula and/or subcutaneous port to draw the lymph fluid away from the thoracic duct and reduce hemostatic pressure in the lymphatic system.

Custom dental prosthesis or implants each individually designed and manufactured to replace nonfunctional natural teeth positioned in a jawbone of a specific pre-identified patient are provided. An example dental prosthesis/implant includes a dental implant body having a prosthesis interface formed therein to receive an occlusally-facing dental prosthesis component. The prosthesis interface has a custom three-dimensional surface shape positioned and formed to create a form locking fit with respect to the occlusally-facing dental prosthesis component when positioned thereon.

The present invention relates to an improved cerebrospinal fluid shunt system comprising a coating covering at least part of the system and a flow restricting component exerting a passive and essentially constant resistance to flow. The present invention also relates to methods for implanting different catheters of a cerebrospinal fluid shunt system into a brain ventricle and the sinus system, respectively, of an individual. The present invention further relates to methods for shunting cerebrospinal fluid from a brain ventricle to the sinus system of an individual.

The present invention relates to one kind of protocyanidin oligomer and its production process and application in food, health article, feed additive and animal medicine. The protocyanidin oligomer is dimer, trimer and tetramer, and is produced with condensated tannin as material and through oxidizing degradation with hydrogen peroxide or potassium chlorate as oxidant to obtain yellow or brown semi-transparent liquid and subsequent separation and purification. The protocyanidin oligomer of the present invention has powerful antioxidant function and antibiotic function, and my be used in food owing to no astringent taste and no negative effect on the activity of amylase in digestive tract, as feed additive to reduce coccidiosis infection of fowls and low cholesterol content in egg.

The invention provides a microbiological solid-state seed producing and fermenting device, comprising a fermenting system, an air supply system, a temperature control system, a solid material system, a liquid-state material system and an electric control system, wherein the fermenting system comprises a fermenting tank provided with a stirring device, the top part of the fermenting tank is provided with a material liquid inlet, an exhaust port, a pressure gauge interface and an air inlet sequentially, a feed port is arranged on the upper right side of the front end of the fermenting tank, a discharge port is arranged on the lower left side of the front end of the fermenting tank, and the middle parts of both the feed port and the discharge port are provided with observation windows; the solid material system comprises a feeding device and a conveyer belt; the electric control system mainly comprises a stirring control unit, a temperature control unit, a material liquid control unit, an air supply control unit, a feeding and discharging control unit and a display. The device provided by the invention integrates the functions of steam sterilizing, fermenting, inoculating, drying and crushing of a solid culture medium, the automation degree is high, the microbial contamination rate is low, the production time is greatly shortened, the production efficiency is improved, and the stability of quality of a product is guaranteed.

The present invention is one kind of soil improving agent for vegetable plot and its preparation process and application, and belongs to the field of soil improving microbe preparation technology. The soil improving agent consists of turf, diatomite, microbe preparation, peanut cake and fly ash, and its microbe preparation includes Bacillus subtilis fermenting liquid, actimomycetale fermenting liquid and trichoderma fermenting liquid in the weight ratio of 1 to 0.5-3.5 to 0.5-6. It is applied to soil after being mixed in the field, can improve soil, and raise crop yield and quality obviously.

The invention relates to a vacuum-assisted mammary gland sample biopsy and rotary cutting system. A puncture head is fixedly connected to the front end of an outer cutter tube, a sampling groove is formed in the outer cutter tube, an inner cutter tube is sleeved with the outer cutter tube, a stirring disc is arranged at the rear end of the inner cutter tube which is connected with a transmission module, the transmission module is used for providing the two kinds of movements of rotating and advancing and retreating, a circuit control module is connected with the transmission module through a driving module to achieve driving control over the transmission module, and the vacuum-assisted mammary gland sample biopsy and rotary cutting system is controlled to perform cutting and suction surgical actions through operation buttons on the control module. By means of modularization and integration optimization design of a mechanical structure, the functions of surgical puncture, mechanical rotary cutting and vacuum suction are integrated in a probe region of the device, smaller surgical pain and postoperative trauma are caused on a patient with suspected mammary gland cancer with the smaller size of the system and the reasonable excision mode, and minimally-invasive biopsy sampling on a suspected tumor focus and minimally-invasive excision treatment on benign tumor can be achieved.

The invention provides a nano artificial dura mater capable of being used as a medicine sustained-release system, having the structure which comprises at least two layers, i.e. a hydrophobic anti-blocking electro-spun layer which faces the cerebrum, and a hydrophilic nano cytoskeleton layer which backs on to the cerebrum; and cell factors and/or medicines are arranged in any layer of the artificial dura mater by way of blended spinning. The invention also provides a method for preparing the nano biomimic artificial dura mater. Compared with an artificial mater prepared by the single utilization of the electro-spinning technology, the artificial mater to which the medicines and the cell factors are added by blending technology can effectively prevent infection and faster promote the regeneration process of the artificial mater. The invention also provides a novel medicine loading and releasing mode for treating cerebral diseases, the loaded medicines can be directly and efficiently transferred into the cranial cavity along with the implantation of the dura mate and can be released according to requirements, and therefore the invention realizes favorable treatment effect and has broad application prospect.

The invention provides a novel biological-material complex patch which is of a laminated structure comprising a basic layer and an additional layer. The novel biological-material complex patch is characterized in that the basic layer is an patch made from an artificial synthetic material; the additional layer is a biological patch made from an extracellular matrix/acellular tissue matrix material, or a synthetic-material patch made from an artificial synthetic biological material or the artificial synthetic biological material and an artificial synthetic degradable material; and the basic layer and the additional layer are integrated through a surgical suture or a medical adhesive or other methods. The biological-material complex patch has the advantages of easiness for peripheral tissue growth and angiogenesis, adhesion prevention, degradability, good infection resistance and the like of the biological material and the advantages of easiness for tissue growth by of a big mesh, excellent infection resistance, difficulty for generating hydrops, non-degradability, high late mechanical strength and durability of the artificial-synthetic-material patch, adopts a simple production method, is more effective after being applied in clinic, and ensures recent and late relapse and infection rates to be lower.

The invention relates to the field of fertilizers, particularly a straw corrosion promoting microbial inoculant-coated biological organic fertilizer and a preparation method thereof. The fertilizer is prepared from the following raw materials in parts by weight: 35-56 parts of inorganic fertilizer, 20-40 parts of organic fertilizer, 1-6 parts of humic acid, 4-16 parts of filler, 5-10 parts of polysaccharide assistant and a right amount of corrosion promoting microbial inoculant. By adding the corrosion promoting microbial inoculant, every gram of biological organic fertilizer contains at least 1.1*10<10> cfu of corrosion promoting microbial strain. The granular biological fertilizer is prepared by proper fermentation and processing. The biological organic fertilizer can degrade crop straw residues in the last season. The biological fertilizer obviously increases the yield of the field crops, obviously lowers the morbidity, and enhances the organic matter content in the soil.

The invention discloses a preparation method of a highly antibacterial alginate dressing, and belongs to the technical field of preparation of medical dressings. The preparation method comprises the following steps: oxidizing sodium alginate by virtue of sodium periodate, and mixing silver nitrate, zinc nitrate, a trisodium citrate solution and the like so as to obtain a silver-zinc antibacterial agent; then, combining dopamine hydrochloride and the oxidized sodium alginate, wherein the dopamine hydrochloride is attached to the surface of the oxidized sodium alginate through a dopamine polymerization reaction, and on the basis of reducing and chelating effects of the dopamine on silver and zinc irons, silver and zinc are uniformly loaded on the surface of the oxidized sodium alginate by virtue of a method of conducting in-situ reduction on the silver and zinc irons, so that a spinning solution is prepared; and conducting vacuum deaerating, spinning, coagulating, stretching, rinsing, rolling and drying, and making the dressing by virtue of a needle punching technology, so that the highly antibacterial alginate dressing is obtained. The alginate dressing prepared by the invention is excellent in hemostatic and antibacterial effects, the alginate dressing is good in hygroscopic swelling performance and the alginate dressing is capable of effectively protecting wounds and accelerating healing speed of the wounds; and dressing fibers are closely combined, and the alginate dressing is relatively good in mechanical performance and convenient to change.

The invention provides a method which is applied to direct sowing and seedling of yellow ginger seeds in large scale in a greenhouse. The method comprises the following steps of place selection for anursery garden, pretreatment of seeds, uniform sowing in greenhouse surface after dividing the compartment, prophase management after seedling emergence, middle-later period management after seedlingemergence, transplanting after seedling emergence, and the like, wherein three scientific nutrient solution compounding are used in the management after seedling emergence and the transplanting afterseedling emergence, thus providing reasonable nutrition proportion for each growth stage of the seedling and ensuring various nutrition elements required by the growth of the seedling. The method hasthe advantages of reducing the amount of pesticide, easily and conveniently obtaining seedling, having high utilization ratio of fertilizer, few broken roots, little workload, quick growth after transplanting with soil and capability of continuously breeding for more than 3 years by replacement of seedbed substrate and treatment of soil, improving the using efficiency of the greenhouse and reducing the production cost.

The invention provides a method for preparing a conductive composite nanofiber nervous tissue engineering scaffold based on graphene. The method includes the following steps: a step 1, dissolving tussur silk fibroin and poly (lactic acid)-poly caprolactone in a solvent with stirring till complete dissolution of the tussur silk fibroin and the poly (lactic acid)-poly caprolactone so as to acquiring a spinning solution; a step 2, performing electrostatic spinning on the spinning solution obtained from the step 1 so as to acquire a nanofiber membrane, performing steam fumigation treatment by using ethyl alcohol, and performing drying so as to acquire tussur silk fibroin/ poly (lactic acid)-poly caprolactone composite nanofibers; and a step 3, dipping the tussur silk fibroin/ poly (lactic acid)-poly caprolactone composite nanofiber scaffold material obtained from the step 2 in a graphene oxide dispersion liquid, taking out the tussur silk fibroin/ poly (lactic acid)-poly caprolactone composite nanofiber scaffold material, cleaning the tussur silk fibroin/ poly (lactic acid)-poly caprolactone composite nanofiber scaffold material, soaking the tussur silk fibroin/ poly (lactic acid)-poly caprolactone composite nanofiber scaffold material in an ascorbic acid solution, taking out the tussur silk fibroin/ poly (lactic acid)-poly caprolactone composite nanofiber scaffold material, and cleaning the tussur silk fibroin/ poly (lactic acid)-poly caprolactone composite nanofiber scaffold material so as to acquiring the conductive composite nanofiber nervous tissue engineering scaffold based on the graphene. The method is simple to operate, is excellent in repeatability, and can provide a new thought for nerve defect repairing.

The invention relates to the field of fertilizers, in particular to a banana wilt resisting microbial fertilizer as well as a preparing method and application thereof. The microbial fertilizer comprises the following ingredients in parts by weight: 35-64 parts of inorganic fertilizer, 20-40 parts of organic fertilizer, 6-16 parts of humic acid, 4-16 parts of a filler, and a banana wilt resisting microbial agent, wherein the banana wilt resisting microbial agent enables every gram of microbial organic fertilizer to contain not less than 8*109cfu of disease-resistant microbial bacteria. The granular microbial fertilizer is made through proper fermentation and processing; the microbial fertilizer can effectively reduce banana wilt morbidity; the wilt morbidity of bananas to which the microbial fertilizer is applied is obviously reduced, the yield is obviously improved, and meanwhile the soil microbial environment is improved.

A money collection system and a method for setting accounts and paying includes a collection terminal, a front-stage collection process system, a back-stage account management system and a switch system, among which, the front-stage collection process system is connected with the back-stage account management system, one end of the switch system is connected with the front-stage collection system or the back-stage account system, the other end is connected to the bank payment system. The paid money of the payer account is deducted from the payer account of the back-stage account management system and transferred to the collecting account of the front-stage collection process system, the rest money is transferred to the bank payment system via the switch system to send a payment request and receive the returned process result to be sent to the front-stage collection system to finish the account payment.

The invention discloses a compound biological soil improver taking a compound biological bacterium as a core. The invention also discloses a preparation method of the compound biological soil improver, which comprises the following steps of: respectively carrying out liquid deep-layer high-density culture on the soil improver to obtain fermentation broth; carrying gout centrifugal treatment on the fermentation broth and then collecting bacterial mud; adding a protective agent to prepare frozen dry powder; and taking the compound biological bacterium as the core and mixing the required powdery organic fertilizer and perlite to obtain the compound biological soil improver. The compound biological soil improver has high active bacterial quantity, can be preserved at normal temperature for a long term, can be mixed with organic soil and inorganic soil improvers for use without being influenced and has remarkable effect for preventing and controlling the soil-borne disease.

The present invention is directed to, in one aspect, a medical apparatus having a nasogastric tube with hypopharyngeal suctioning capability. In one embodiment, the medical apparatus has a flexible nasogastric tube for insertion through a patient's nose. The nasogastric tube has a first end defining a first opening, a distal, second end that defines a second opening, and a length sufficient to allow the second opening to be positioned in a patient's stomach. The medical apparatus also has a flexible oropharyngeal tube for insertion through a patient's mouth. The oropharyngeal tube has a first end and a distal, second end that defines a suction intake. The oropharyngeal tube has a length that is less than the length of the nasogastric tube and which allows the suction intake to be positioned in a patient's hypopharynx region. In another embodiment of the invention, the medical apparatus has a laryngeal mask with hypopharyngeal suctioning capability.

A milk fat globule membrane-containing infant formula milk powder and a preparation method thereof belong to the technical field of preparation of infant formula milk powder. The milk fat globule membrane-containing infant formula milk powder is composed of essential nutrient components of skim milk powder, concentrated whey protein powder, lactose, demineralized whey powder, vegetable oil, vitamins, mineral substance and the like and meanwhile contains 0.01%-1.5% of milk fat globule membrane (MFGM) extract. By taking breast milk as reference, the nutrient components of the milk fat globule membrane-containing infant formula milk powder, especially the composition of fat globules, can be closer to those of the breast milk and accordingly can promote cerebral and neural development of newborns and improve the cognitive competence as well as anti-infection ability.

The invention provides a grape multi-resistance rootstock hard branch grafting nutrition bag seedling raising method in arid desert areas. The grape multi-resistance rootstock hard branch grafting nutrition bag seedling raising method in the arid desert areas adopts rootstocks which are selected from 5BB and /or S 04, and adopts following steps of gathering of scions, selection of rootstocks, pavement of double layers of electric heating hotbeds, grafting of the rootstocks and the scions, placement of cuttages on the electric heating hotbeds, placement of the cuttages in nutrition bags, and management after cutting of the rootstocks. A plurality of selection tests of rootstock varieties come to a discovery that after rootstocks S04 and rootstocks 5BB are grafted with local cladus, nursery stocks are good in resistances, low in infection rate of diseases and insect pests, strong in saline-alkaline resistance, high in survival rate, and rather good in local adaptability. Greenhouses are further used for carrying out large-scale fast breeding of grape hard branch grafting seedlings, breeding stage is short, and grafting, breeding and planting of the seedlings can be achieved in the same year. The grape multi-resistance rootstock hard branch grafting nutrition bag seedling raising method in the arid desert areas is particularly suitable for arid and saline-alkaline desertification areas, simple and practical in technology, and easy to popularize.

A Chinese medicine for treating burn and scald is prepared from giant knotweed rhizome (15-30 portions) and borneol (5-10 portions).