78results about How to "Reduce prolapse" patented technology

The invention discloses a preparation method of a high-compaction-density lithium manganese iron phosphate/carbon composite positive electrode material. The chemical general formula of the material is LiMnxFeyPO4/C, wherein x is more than or equal to 0.5 and less than or equal to 0.9, and x + y is equal to 1. The preparation method comprises the following steps: diluting phosphoric acid for later use, adding a manganese source, an iron source, a dispersing agent and deionized water into a sealable container, and introducing shielding gas; adding diluted phosphoric acid into the sealed container, aging until the pH value is 2.0-5.0, and uniformly nucleating; cleaning the formed precipitate, drying in vacuum, and sintering for the first time at high temperature to form spherical particles A; preparing a solution from lithium hydroxide monohydrate, adding the spherical particles A into the solution, performing spray drying, and performing high-temperature secondary sintering to obtain spherical particles B; and preparing a glucose solution, adding the spherical particles B into the glucose solution, performing spray drying, and performing high-temperature third sintering to obtain the nano spherical lithium manganese iron phosphate/carbon composite material. The electrochemical performance and the compaction density of the material are greatly improved.

A method for improving leaflet prolapse and/or valve regurgitation associated with a heart valve involves delivering a catheter into a ventricle of a heart, attaching a cord to a first papillary muscle disposed in the ventricle, the first papillary muscle being connected to a first leaflet of an atrioventricular heart valve, attaching the cord to a second papillary muscle, the second papillary muscle being connected to a second leaflet of the heart valve, secure first and second portions of the cord in a fixed relative position to form a loop attached to both the first and second papillary muscles, and releasing the cord from the catheter.

The invention discloses a Chinese medicine probiotic compound preparation for the poultry ovarian maintenance, which comprises the following raw materials in part by weight: 10-20 parts of Radix Astragali, 5-15 parts of Radix Codonopsis, 5-10 parts of acanthopanax, 4-8 parts of Astragali Complanati Semen, 2-5 parts of Cyperus Rotundus L, 1-5 parts of corydalis tuber, 5-15 parts of isatis roots, 15-25 parts of epimeddium, 10-15 parts of motherwort, 4-8 parts of Radix Ranunculi Ternati, 0.001-0.1 part of lactic acid bacteria, 0.001-0.1 part of Bacillus spp, 7-15 parts of selenium yeast, and 2-5 parts of decavitamin. The invention also discloses a preparation method of the Chinese medicine probiotic compound preparation. The Chinese medicine probiotic compound preparation significantly improves the immunity of laying hens, improves the ovarian function, eliminates the genital system damage, promotes the follicular development and ovulation, prolongs the peak period of egg production, and improves the egg quality. The Chinese medicine probiotic compound preparation has the health-care effect on ovaries and low in cost, thus being suitable for the egg-production poultry.

The invention provides a preparation method of a zinc oxide nanosheet for a negative electrode of a lithium-ion battery. The method comprises the following steps: (1) dissolving zinc acetate into deionized water as a precursor at a room temperature; (2) sequentially adding sodium citrate and sodium hydroxide to the solution prepared in the step (1) for stirring for 1-12 hours; (3) adding hexamethylenetetramine to the solution obtained in the step (2) and stirring and dissolving the hexamethylenetetramine, wherein the molar ratio of the zinc acetate to the sodium citrate to the sodium hydroxide to the hexamethylenetetramine is 1 to (1.8-2.1) to (1.8-2.1) to 1; and (4) transferring the solution into a reaction kettle, heating the solution to 120-160 DEG C, carrying out heat preservation for 10-48 hours, cooling the solution to a room temperature after reaction is ended, and filtering and collecting the solution to obtain a target material. The preparation method is simple to operate and low in cost; the zinc oxide nanosheet can be obtained through a one-step hydrothermal synthesis method; the contact area of the obtained zinc oxide nanosheet and an electrolyte is large; and the lithium-ion battery has relatively good electrochemical properties.

The invention discloses a Ti<4+>, Al<3+>, Fe<3+> and F-co-doped layer-layer composite lithium-rich anode material xLi2MnO3. (1-x) LiMn0.5Ni0.5O2 (x is not less than 0 and not more than 0.5). The anode material is characterized in that the chemometry formula is xLi2MnO3. (1-x)Li1-n-y (Mn0.5Ni0.5)1-m-npAlm TinFepO2-yFy, wherein x is not less than 0 and not more than 0.5, m is not less than 0.01 and not more than 0.05, n is not less than 0.01 and not more than 0.05, p is not less than 0.01 and not more than 0.05, and y is not less than 0.01 and not more than 0.06. The anode material is obtained by adding soluble lithium compound, soluble manganese salt, soluble nickel salt, butyl titanate, Al (NO3)3.9H2O, soluble iron salt and lithium fluoride in deionized water according to stoichiometric ratio of the above molecular formula with the amount of added substance for 2.5-4.0 times of total metal ion, fully and uniformly stirring with tartaric acid to completely dissolve; and concentrating, gelling, drying, grinding, decomposing, performing and calcining the solution. The prepared anode material has excellent hold ability of circulating capacity and magnification characteristic.

The invention relates to a fiber doubling fixture for a multi-channel optical fiber splitter, which comprises a metal base, a middle laminated fiber board and an upper laminated board. There are at least two optical fiber receiving grooves on the upper surface of the metal base, and the optical fiber receiving grooves are radial distribution; the middle laminated fiberboard is hinged on the back side of the metal base, and the bottom of the middle laminated fiberboard is provided with an inverted U-shaped groove, and a flexible magnet is arranged in the groove; the bottom of the upper laminated board has a compressed fiberboard receiving groove, and the pressed The accommodating groove of the fiberboard is in an inverted U shape, the rear side of the upper laminate is hinged to the metal base, and the front side is fixed with a magnetic body. The fiber doubling fixture for multi-channel optical fiber splitter of the present invention is used in conjunction with the middle laminated fiber board with a smaller magnetic force and the upper laminated board with a larger magnetic force to prevent the optical fiber from coming out of the optical fiber receiving groove during the process of artificially adjusting the optical fiber , which simplifies the operation process and increases the fault tolerance rate.

The invention discloses a La<3+>, Al<3+>, Fe<3+> and F<-> co-doped composite lithium-rich anode material xLi2MnO3.(1-x)LiMn0.5Ni0.5O2 (x is not less than 0 and not more than 0.5). The anode material is characterized in that a chemical stoichiometric equation is xLi2MnO3.(1-x)Li1-y(Mn0.5Ni0.5)1-m-n-pAlmLanFepO2-yFy, wherein x is not less than 0 and not more than 0.5, m is not less than 0.01 and not more than 0.05, n is not less than 0.01 and not more than 0.05, p is not less than 0.01 and not more than 0.05 and y is not less than 0.01 and not more than 0.06. A preparation method for the anode material comprises the steps as follows: dissolving a soluble lithium compound, soluble magnesium salt, soluble nickel salt, La(NO3)3.6H2O, Al(NO3)3.9H2O, soluble iron salt and lithium fluoride in de-ionized water according to the chemical stoichiometric equation of the molecular formula; adding tartaric acid which is 1.2-2.0 times of the total amount of all metal ions; fully and uniformly stirring until tartaric acid is fully dissolved; and concentrating, gelling, drying, grinding, decomposing, tabletting and calcining a solution to obtain the anode material. The prepared anode material is excellent in cyclic capacity retention capability and rate performance.

The invention provides a cotton-feeding cubing-roll device for a cover plate type carding machine, comprising a roller (12), a fiber feeding board (11), a cubing roll (13) and a cubing-roll housing plate (16), wherein the fiber feeding board (11) is arranged under the roller (12); the cubing roll (13) is arranged on one side of the roller; the cubing-roll housing plate (16) is arranged above the roller (13); a mote knife (14) and a small screen (15) are arranged under the cubing roll (13); the mote knife (14) is arranged on one side of the cubing roll (13) close to the roller (12); and a wrapping angle a of the small screen (15) is between 109 and 140 degrees. The cotton-feeding cubing-roll device for the cover plate type carding machine can effectively improve the utilization rate of fibrilia, and ensure even slivering, good quality of final yarn, and stabilize the blending ratio with cotton and other fibers.

The invention relates to a preparation method of a hard carbon material. The preparation method comprises the following steps: S100, pre-oxidizing a hard carbon precursor; s200, grinding the pre-oxidized hard carbon precursor into powder; s300, the powder is subjected to microwave treatment; and S400, calcining the powder obtained in S300 to obtain the hard carbon material. The hard carbon material is prepared by the preparation method. The hard carbon material prepared by the preparation method is applied to the negative electrode of the sodium-ion battery. The method has the advantages that the prepared hard carbon material serves as a sodium ion battery negative electrode material to be assembled into a sodium half-battery pair, within the voltage range of 0-2 V, the cycling stability is good, the initial reversible capacity reaches up to 370 mAh/g, the capacity retention rate reaches 95.9% after 50 cycles under the current density of 20 mA/g, compared with a traditional preparation method, the hard carbon specific capacity is obviously improved, and the method is simple and easy to implement. The method is low in cost and suitable for large-scale industrial production.

The invention relates to a device and a method for eliminating and recycling organic solvent from cathode electrophoresis emulsion. The device comprises an upper tower section, a middle tower section and a lower tower section, wherein a carrier gas inlet is formed at the lower part of the lower tower section, the lower end of the lower tower section is connected with a heat exchanger of which the bottom is connected with an emulsion recover kettle, the lower end of a heat exchange tube in the heat exchanger is provided with a cold emulsion feeding hole, the upper end of the heat exchange tube is provided with an emulsion discharge hole, the emulsion discharge hole is communicated with the emulsion feeding hole at the lower end of the middle tower section by a charging pump, the upper end of the upper tower section is connected with a tower top, the tower top is externally connected with a condenser, a reflux ratio controller is arranged on the condenser, the bottom of the condenser is connected with a solvent recovery kettle, and the upper end of the condenser is connected with a vacuum pump. The method comprises the following steps: (1) vacuumizing and introducing water vapor; (2) performing reversed current heat exchange to the cathode electrophoresis emulsion, and then performing gas-liquid mass transfer in a packed tower; and (3) adjusting the reflux ratio controller and collecting emulsion and a solvent. According to the device and the method, the removal rate of organic solvent is high, zero emission is realized, the process control is stable, the operation is simple, and the recovery products have excellent performances.

The invention discloses a Cr3<+>, Mg<2+>, Fe<3+> and F<-> co-doped layer-layer composite lithium-rich anode material xLi2MnO3.(1-x)LiMn0.5Ni0.5O2(x is not less than 0 and not more than 0.5). The Cr3<+>, Mg<2+>, Fe<3+> and F<-> co-doped layer-layer composite lithium-rich anode material is characterized in that a stoichiometric equation of the anode material is xLi2MnO3.(1-x)Li1+n-y(Mn0.5Ni0.5)1-m-n-pCrmMgnFepO2-yFy, wherein x is not less than 0 and not more than 0.5, m is not less than 0.01 and not more than 0.05, n is not less than 0.01 and not more than 0.05, p is not less than 0.01 and not more than 0.05 and y is not less than 0.01 and not more than 0.06. The preparation method comprises the following steps: adding soluble lithium compound, soluble manganese salt, soluble nickel salt, soluble magnesium salt, soluble chromium salt, soluble iron salt and lithium fluoride into deionized water according to the stoichiometric ratio of the molecular formula; adding tartaric acid of which the mol ratio is 1.5-2.5 times of the total amount of metal ions and uniformly and fully stirring until the mixture is dissolved; and condensing, gelating, drying, grinding, decomposing, tabletting and calcining the solution to obtain the Cr3<+>, Mg<2+>, Fe<3+> and F<-> co-doped layer-layer composite lithium-rich anode material. The prepared anode material has excellent circulation capacity holding capacity and magnification characteristic.

The invention discloses a multifunctional thrombolysis and thrombus breaking large-caliber suction catheter, which comprises a thrombus suction connector, a thrombolysis medicine connector and a catheter, wherein the thrombus suction connector is provided with the thrombolysis medicine connector; the right end of the thrombus suction connector is provided with the catheter; the inner cavity of the catheter is a suction inner cavity; the catheter is provided with an X-ray-proof marker point A and an X-ray-proof marker point B; in addition, positions which are near the front position and the back position of the X-ray-proof marker point A, are independently provided with a first near-end ejection hole and a second near-end ejection hole; a position, which is near the left side of the top end of the X-ray-proof marker point B, is provided with a first far-end ejection hole; a position, which is near the left side of the bottom end of the X-ray-proof marker point B, is provided with a second far-end ejection hole; and the first near-end ejection hole communicates with a first near-end ejection hole medicine conveying channel. The multifunctional thrombolysis and thrombus breaking large-caliber suction catheter can efficiently and quickly remove thrombus, quickly recovers unobstruction of blood vessels, also can reduce a thrombolysis bleeding risk, reduces postoperative complications and improves a clinical effect.

The invention discloses a preparation method of a high-temperature-resistant and impact-resistant UPVC pipe fitting. The Vicat softening temperature of the prepared high-temperature-resistant and impact-resistant UPVC pipe fitting measured according to GB/T 8802-2001 is 105-113 DEG C, and the impact strength measured according to GB/T 19712-2005 is 38-43 KJ/m<2>. A semi-finished pipe fitting is put into a traction opening at one side of a traction box, the output shaft of a sixth motor drives traction belts to transmit through a commutator, the two traction belts drive the semi-finished pipe fitting to be pulled out from a traction opening in the other side and pulled to a position between two arc-shaped sleeves, the piston rod of a hydraulic cylinder pushes a cutting blade, and the cutting blade cuts the semi-finished pipe fitting, so the technical problems of failed automatic fixation and poor fixation effect of the pipe fitting after cutting in the prior art are solved.

The invention relates to a mouth-shaped spreader capable of fixing an oropharyngeal cannula and a using method thereof. The spreader comprises a spreading fixator body and a fixing strap, wherein thespreading fixator body comprises a tube body part, a positioning part and a hoop body part; the tube body part is an oval tube body internally provided with three cavities, the three cavities comprisea circular middle tube oropharyngeal cannula cavity and two suction catheter cavities; the top end of the tube body part extends to the periphery to form the oval positioning part, and the positioning part is provided with a protrusion; the hoop body part comprises a fixing section and an extension section, and a gap is reserved between the tail end of the extension section and the top end of thecircular middle tube; an anti-slip structure is arranged at the inner side of the fixing section, a plurality of hook grooves are formed in the outer side of the fixing section, and the inner side ofthe fixing section is provided with clamping hooks matched with the hook grooves. The mouth-shaped spreader is placed at a joint of the oropharyngeal cannul before used, when the mouth-shaped spreader is used, the oropharyngeal cannu is inserted through the oral cavity of a patient, the hoop body part is loosened, the tube body part is pushed in the oral cavity of the patient, and the positioningpart fits the lip of the patient; the hoop body part is adjusted so that the clamping hooks are meshed with the hook grooves, so that the oropharyngeal cannul is fixed. Not only is the nursing cost reduced, but also the success rate of patient rescue treatment is greatly improved.

The invention discloses an occlusion device for treating intracranial aneurysm or cerebral aneurysm. The occlusion device comprises a mesh, the mesh has an expanded state and a low configuration statefor intravascular delivery to an aneurysm, the mesh includes a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state, wherein (a) the mesh is curved along its width, (b)the mesh is curved along its length, and (c) the mesh has an undulating profile across at least a portion of one or both of its length or its width. The mesh is configured to be placed within the aneurysm in the deployed state such that the mesh extends over a neck of the aneurysm.

The invention discloses a seven-spiral grounding wire clamp, which comprises a fixed frame and a movable clamping block slidably connected with the inner side of the fixed frame, wherein the bottom end of the movable clamping block makes contact with the top end of a screw rod, the screw rod is of a seven-threaded structure, and the bottom end of the screw rod penetrates through a guide hole formed in the bottom end of the fixed frame and then is fixedly connected with a connecting column. According to the seven-spiral grounding wire clamp adopting the structure, the screwing efficiency (the rotating speed of the seven-spiral grounding wire clamp is seven times that of a conventional single thread) is improved by arranging the screw rod with the seven-threaded structure, and the connectingreliability between the screw rod and the positioning cylinder is improved by arranging the positioning spring in the positioning cylinder connected with the screw rod so as to reduce the possibilitythat the screw rod is disengaged from the positioning cylinder.

The invention belongs to the technical field of preparation of positive electrode materials, and particularly relates to a method for improving the coulombic efficiency and cycling stability of a lithium-rich positive electrode material, and the surface of the lithium-rich positive electrode material is coated with a lithium-intercalated organic compound by adopting any one of a dry-method mixing mode and a wet-method mixing mode; and the mass of the lithium-intercalated organic group compound is 0.2-10% of the mass of the lithium-rich positive electrode material. The method is simple and convenient to operate, the raw materials are low in price, the manufacturing cost is low, industrial production is facilitated, the first coulombic efficiency, the capacity and the cycling stability of the lithium-rich positive electrode material can be effectively improved by utilizing the method, and meanwhile, other side effects cannot be introduced.

The invention discloses a traditional Chinese medicine for treating uterus prolapsus and proctoptosia, which comprises the following raw materials: 40-80g of nosema cochinchinensis, 50-100g of red castor bean, 50-100g pig intestines, 1-2 tortoise heads and 15-20 river snails or field snails. The traditional Chinese medicine is prepared by natural raw materials, and has no special smell, no excitant and toxic and side effect, can be taken for external use and for oral use, and can be used for treating uterus prolapsus and proctoptosia. The traditional Chinese medicine can be used conveniently, and can control the condition in a short time. By clinic application, the traditional Chinese medicine can be used for treating uterus prolapsus, proctoptosia with a substantial curative effect, and the uterus and the proctoptosia have a fast contraction.

The invention provides a handle assembly, a distributor, a detergent box assembly and clothes treatment equipment. The handle assembly comprises a handle body and a decorating part, wherein the handlebody is provided with a clasp groove penetrating through the appearance face of the handle body; the decorating part is arranged in the clasp groove and is connected with the handle body through a movable connection structure, and the size of the decorating part is adaptive to the size of the clasp groove, and is used for sealing the clasp groove under the natural state and flush with the appearance face. The handle assembly, the distributor, the detergent box assembly and the clothes treatment equipment have the advantages that the decorating part is added in the clasp groove of the handle body, since the size of the decorating part is adaptive to the size of the clasp groove, the decorating part can seal the clasp groove under the natural state, thereby avoiding the situation that the dirt is hidden in the clasp groove, improving the cleanliness of the product, not only ensuring the integrity of the appearance face of the handle body, but also ensuring the smoothness of the appearance face of the handle body, and playing a good decorative role. In addition, the decorating part is movably connected with the handle body to trigger the decorating part, so that the clasp groove is exposed for a user to push and pull the handle assembly, thereby achieving the normal operation of the distributor.

The invention discloses an art knife. The art knife comprises a blade (1), a handle switch (2) and a knife housing (3); a knife groove (4) for sliding fit of the blade (1) is formed in the knife housing (3); the knife housing (3) is provided with an opening (24) for sliding fit of the handle switch (2); the blade (1) is connected with that handle switch (2); a plurality of grooves (5) are formed in the knife housing (3); the grooves (5) are arranged in two rows basically in parallel; a first elastic buckle (6) and a second elastic buckle (7) are arranged on the two sides of the handle switch (2) correspondingly; the first elastic buckle (6) can be embedded into each of the grooves (5) in one row; the second elastic buckle (7) can be embedded into each of the grooves (5) in the other row; and the handle switch (2) is internally provided with a locking and unlocking structure which can enable the first elastic buckle (6) or the second elastic buckle (7) to escape from the grooves (5). The art knife is low in cost, high in working reliability and high in safety.

The invention relates to a polyurethane insulation board and a production line thereof, and relates to the technical field of insulation board manufacturing. The polyurethane insulation board comprises a base plate, aluminum foil cloth and polyurethane foam, wherein one end of the base plate in the width direction is bent to form a first clamping groove, and the other end of the base plate in thewidth direction is bent to form a second clamping groove; the two ends of the aluminum foil cloth are embedded in the first clamping groove and the second clamping groove respectively; the polyurethane foam is filled between the base plate and the aluminum foil cloth; the production line comprises an uncoiling machine, an embossing machine, a forming machine, a foaming machine, a cloth paving machine, a cloth embedding machine and a laminating machine, and further comprises a conveying device used for conveying the base plate; and the foaming machine, the cloth paving machine and the cloth embedding machine are sequentially arranged on the conveying device. Compared with the prior art, the aluminum foil cloth is not prone to falling off from the polyurethane foam, then the polyurethane foam can be protected by the aluminum foil cloth, mutual protection between the aluminum foil cloth and the polyurethane foam is achieved, the service life of the insulation board is prolonged, and meanwhile, the thermal insulation performance of the insulation board after long-time use is improved.