8results about How to "Inhibit hyperplasia" patented technology

The application provides an antibacterial neural electrode based on a high-surface-potential zirconium oxide layer and a preparation method thereof. The electrode comprises, from bottom to top, a bottom zirconium oxide film layer, a first insulating layer, a metal layer, a second insulating layer, a top zirconium oxide film layer and an electrode modification layer. A distal end of the metal layer is partially exposed to form an electrode point, and the electrode modification layer covers the electrode point. The bottom zirconium oxide film layer and the top zirconium oxide film layer are subjected to high-surface-potential treatment and exhibit a positive surface potential in a physiological environment. The positive surface potential can destroy the cell membranes of bacteria with negative charges through electrostatic action after the neural electrode is implanted in vivo, and inhibit the formation of microglial cells and astrocytes. The damage to the membranes of mammalian cells (such as neurons) with neutral electricity is extremely small. The application realizes active antibacterial function through the high-surface-potential zirconium oxide film layer, ensures long-term effective contact between the electrode and neurons, and thus realizes high-quality, long-term stable electrophysiological recording and stimulation function of the neural electrode.

This invention provides a silicon-carbon anode material with an integrated embedded composite coating layer, its preparation method, and a lithium-ion battery, relating to the field of lithium-ion battery technology. The silicon-carbon anode material includes a silicon-carbon material core and a composite coating layer covering the surface of the core. The silicon-carbon material core comprises a porous carbon framework, nano-silicon dispersed within the porous carbon framework, and carbon nanomaterials grown in situ within the porous carbon framework. The composite coating layer comprises an elastic polymer matrix, and lithium salt and SEI film-forming additives distributed within the elastic polymer matrix. A portion of the carbon nanomaterials is embedded in the porous carbon, and another portion is embedded in the elastic polymer matrix, thereby forming a three-dimensional interlocking conductive network between the core and the coating layer. This invention solves the technical problems of volume expansion, SEI film instability, and kinetic sluggishness in silicon-based anode materials, achieving good cycle stability, high rate performance, and excellent structural integrity.

The invention relates to a method for efficiently preparing an A-site Ba-containing proton conductor electrolyte by using a precursor combustion method, which innovatively adopts a technology for preparing electrolyte powder by using the precursor combustion method, is coupled with a flame synthesis technology and a sol-gel technology, and comprises the following steps: weighing raw materials according to the stoichiometric ratio of the proton conductor electrolyte, preparing precursor liquid, and preparing the A-site Ba-containing proton conductor electrolyte; adjusting the pH value of the precursor liquid, controlling the combustion condition, heating and drying the precursor liquid, combusting the obtained powder, and calcining at high temperature to form a corresponding crystal structure. Compared with the prior art, the preparation method has the advantages that the BCY, BZY, BZCY or BZCYYb electrolyte powder which is smaller and more uniform in particle size and higher in sintering activity is successfully prepared by controlling the chemical proportion and combustion conditions of the precursor. The electrolyte powder can be sintered to be compact at 1300 DEG C (the density is gt; and the temperature is far lower than 1600 DEG C required by the traditional method, so that the volatilization of Ba element in the high-temperature sintering and electrolyte densification processes is effectively avoided, and the battery performance and the sintering temperature are both considered.

This invention discloses a water treatment sterilization device and method, comprising: a water treatment tank, a fixing frame on the lower side of the water treatment tank, and a controller on one side of the water treatment tank. The water treatment tank has a first inlet pipe and a first outlet pipe at its front and rear ends on its upper side, respectively. The water treatment tank contains one or more sets of ultraviolet (UV) germicidal lamps. Each UV germicidal lamp includes a lamp holder located at both ends, with a copper tube between the two lamp holders. An mounting tube, composed of two sets of mounting components, is fitted over the copper tube. The mounting tube has a regular polygonal cross-section, and each surface of the mounting components has an LED bead. A lamp cover is provided outside the mounting tube. Cooling systems are connected to both ends of the copper tube. This device achieves all-angle sterilization, has good irradiation effect, effectively improves sterilization efficiency, and the cooling system effectively dissipates heat from the UV germicidal lamps, preventing heat accumulation due to the increased number of LED beads and extending the product's lifespan.

The invention provides a fruit and vegetable cleaning agent as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) harvesting according to growth periods of different plants, cleaning, crushing, adding sterile water, adding lactobacillus crispatus and rhodococcus ruber, and fermenting to obtain low-temperature fermentation liquid; (2) cleaning and cutting healthy stems and leaves of longevity grass, clover, Chinese cabbage, oilseed rape, crowndaisy chrysanthemum and spinach, respectively filling the stems and leaves into respective containers, adding boiling water, respectively soaking, and extruding liquid by filter cloth to respectively obtain stock solutions; (3) mixing the stock solutions to obtain a mixed stock solution, adding compound bacteria into the mixed stock solution, and fermenting to obtain a high-temperature soaking solution; and (4) mixing the low-temperature fermentation liquid, the high-temperature soaking liquid and an adsorbent to obtain a mixture, and adding a compound enzyme to obtain the fruit and vegetable cleaning agent. The fruit and vegetable cleaning agent can well degrade pesticide residues in fruits, vegetables and fish meat products, and has high activity, stability and wide applicability.

The utility model relates to the technical field of bone wall supporting, and discloses a bone wall supporting device for alveolar bone splitting, which comprises a middle connecting mechanism, an auxiliary internal threaded hole in the longitudinal direction and two longitudinal embedding grooves which are symmetrically arranged and are positioned at the edge position are formed in the middle connecting mechanism; the deformation type supporting mechanism is internally provided with a strip-shaped elastic piece, the bottom of the strip-shaped elastic piece can be embedded into the longitudinal embedding groove, and the structural appearance of the strip-shaped elastic piece is changed by changing the longitudinal height of the strip-shaped elastic piece. According to the bone wall supporting device for the alveolar bone splitting operation, the elastic piece capable of deforming is used for limiting a bone plate of a patient at a notch in an abutting mode, so that the gap of the bone plate is supported, the phenomenon that the labial bone plate is proliferated or displaced towards the gap of the bone plate is avoided, in addition, the elastic piece can be attached to the supporting face in a bent mode, and the supporting effect is good. Therefore, the area of the elastic part and the bone plate at the contact part is increased, the pressure intensity of the bone plate in unit area is reduced, and the working stability of equipment is improved.

The present invention discloses an indwelling needle catheter structure, comprising a steel needle, a No. 1 catheter is arranged on the rear end outer surface of the steel needle, a catheter seat is arranged on the rear end outer surface of the No. 1 catheter, and a clamping hose is arranged on the rear end outer surface of the catheter seat. The indwelling needle catheter structure described in the present invention is provided with an opening and a buffer mechanism, and when the catheter is subjected to negative pressure conditions, because there is a hole on the circumference, the negative pressure on the catheter is converted from one direction to another direction, and the negative pressure in each direction is weakened. At the same time, due to the symmetrical distribution on the circumference and the force balance in the same direction, the catheter will not deviate significantly, thereby avoiding damage to the blood vessel wall, avoiding blood vessel congestion and liquid leakage, avoiding the hyperplasia of connective tissue caused by exuded liquid, and causing phlebitis. When the steel needle is disassembled, the shaking of the steel needle can be reduced, reducing the pain of the patient, and bringing better prospects for use.

The utility model belongs to the technical field of medical instruments and discloses a novel bone fracture patient fixing splint which comprises an upper pad body, a lower pad body, a first steel plate and a second steel plate, a hinge is arranged on the right side of the upper pad body, one end of the hinge is fixedly connected to the lower portion of the right side of the upper pad body, and the other end of the hinge is fixedly connected to the upper portion of the right side of the lower pad body. All the steel plates are placed on the two sides, the upper portion and the lower portion of the upper pad body and the lower pad body at the initial stage of a patient, the number of the steel plates is properly reduced after recovery for a period of time, the number of the steel plates is adjusted according to the actual situation of the patient, and the steel plates can well adapt to the patient; the patient treatment experience is improved; by means of the clamping blocks, the clamping grooves, the connecting blocks, the connecting grooves, the grooves and the springs, convenience is brought to disassembly work of the upper cushion body and the lower cushion body, by means of the antibacterial layer, bacterial proliferation is prevented, use is safer, and by means of the heating cushion, the four limbs can be heated, and the comfort level is improved.