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42results about How to "Prevent rupture" patented technology

Abdominal aorta stent

The invention discloses an abdominal aorta stent. The abdominal aorta stent comprises a bare stent, a film-covered stent main body, a first film-covered branch support and a second film-covered branch stent, wherein a fixing piece which is used for fixing the bare stent on an arterial wall is arranged on the bare stent; one end of the film-covered stent main body is connected with the bare stent; the first film-covered branch support and the second film-covered branch stent are connected with the other end of the film-covered stent main body, the diameter of the first film-covered branch support and the second film-covered branch stent is smaller than the diameter of the film-covered stent main body and the length of the first film-covered branch stent is greater than the length of the second film-covered branch stent; the film-covered stent main body, the first film-covered branch support and the second film-covered branch stent respectively comprise a plurality of stent bodies and high-molecular films which cover the plurality of stent bodies, and any two adjacent stent bodies are connected through the high-molecular films; the stent bodies and the bare stent are cylindrical structures which are formed by surrounding elastic wavy supporting bodies which can retract along the radial direction. Through the arrangement, the abdominal aorta stent provided by the invention has the advantages that the operating difficulty during conveying of the stent main body for an abdominal aorta tumor can be reduced and a larger wound caused to an aorta can be effectively reduced.
Owner:APT MEDICAL HUNAN INC

Preparation method of oxygen-stabilized yttrium fluoride film

A preparation method of an oxygen-stabilized yttrium fluoride film relates to a preparation method of an yttrium fluoride film. The invention solves the problems of optical constant distortion due to the lack of fluorine, caduceus film, unstable structure and poor optical performance in present preparation methods of the yttrium fluoride film. The preparation method provided by the invention comprises the following steps of: washing a ZnS substrate with the use of acetone, alcohol and deionized water, displacing the ZnS substrate on a rotating heating stage in a magnetron sputtering vacuum container, followed by vacuum-pumping and heating; blowing Ar gas into the vacuum container and carrying out anti-powder sputtering cleaning on the surface of the ZnS substrate; vacuumizing and heating after film coating, and cooling to room temperature to finish the whole process. The oxygen-stabilized yttrium fluoride film is prepared by the magnetron sputtering method, thus improving the optical constant distortion due to the lack of fluorine and simultaneously preventing the shedding and rupture of the film. The oxygen-stabilized yttrium fluoride film has good optical performance, low refractive index and excellent stability; and the extinction coefficient of the film is greatly reduced and the film is firmly adhered.
Owner:HARBIN INST OF TECH

Surrounding rock consolidation system for reducing rock burst hazards

The invention discloses a surrounding rock consolidation system for reducing rock burst hazards. The surrounding rock consolidation system comprises a leveling layer, a basalt fiber cloth layer and a plurality of anchor rods. The leveling layer is arranged on the surface of surrounding rock, the basalt fiber cloth layer is arranged on the surface of the leveling layer, and the multiple anchor rods are distributed on the surrounding rock in an implanted manner. A method for implementing the surrounding rock consolidation system includes excavating rock mass, then spraying a layer of concrete on the surface of the surrounding rock in a wet manner and leveling the surrounding rock; quickly adhering basalt fiber cloth with high tensile strength along the surface of the concrete before initial set of the concrete; mounting the anchor rods and allowing the anchor rods to penetrate the basalt fiber cloth and the concrete leveling layer to be implanted in the rock mass. The surrounding rock consolidation system has the advantages that the surrounding rock consolidation system is formed by the surrounding rock, the sprayed concrete, the basalt fiber cloth and an anchor rod group, accordingly, the tensile strength of surface layers of the surrounding rock can be obviously improved, and rock plates formed after the surface layers of the surrounding rock are split off can be effectively prevented from being bent, tensioned and broken off, and rock burst can be suppressed; alternately, the rock plates of the surface layers can be used as protection shields for stopping rock burst fragments from being directly ejected towards excavation faces at the high speeds, and accordingly the rock burst hazards can be reduced.
Owner:GUANGXI UNIV

High-strength climbing type double-splint thin shell buckle lining structure

The invention discloses a high-strength climbing type double-splint thin shell buckle lining structure and belongs to the field of large-size smelting furnaces. A lining is divided into a plurality of partitions, wherein a metal separate backing ring or a refractory concrete isolating beam fixed on a steel shell is arranged on the edge of each lining partition; the structure of each lining partition sequentially comprises a flexible isolating layer, a lightweight insulating layer and a castable working layer from the outside to the inside; each flexible isolating layer is respectively fixed with the corresponding steel shell and the corresponding lightweight insulating layer through high-strength coating layers on two sides of each flexible isolating layer; two opposite surfaces of each lightweight insulating layer and each castable working layer are rough surfaces of which the shapes are complemented, so that each lightweight insulating layer and the corresponding castable working layer form a high-strength buckling structure. According to the high-strength climbing type double-splint thin shell buckle lining structure disclosed by the invention, the integral strength of the lining is greatly improved by using a mechanical structure formed by bulking the castable working layer and the lightweight insulating layer; the surface area of the lining at the connected part of buckles is far greater than that of a fire firing surface of each castable working layer, so that the integral shock resistance of the furnace is greatly improved, and the stability of the lining is improved.
Owner:洛阳市洛华粉体工程特种耐火材料有限公司

Method for manufacturing inner core used for moulding of carbon fiber composite multi-way tube

The invention provides a method for manufacturing an inner core used for moulding of a carbon fiber composite multi-way tube, relating to a method for making a bicycle part. The method comprises the following steps of: step one, designing at least two thin-wall core pipe fittings according to shape of the inner wall of the multi-way tube, wherein each core pipe fitting is only provided with two ports and only one air pipe can be inserted; adjacent surfaces of two adjacent core pipe fittings form a butt joint surface and can be spliced into a complete inner core used for the multi-way tube moulding according to the butt joint surface, the outer surface of the inner core is the same with the shape of the inner surface of the multi-way tube, and dimension of the outer surface of the inner core is slightly smaller than the dimension of the inner surface of the multi-way tube; and any port of the multi-way tube correspond to a corresponding port of one core pipe fitting or correspond to a butt joint combination of corresponding ports of adjacent core pipe fittings; step two, respectively manufacturing the core pipe fittings; and step three, splicing the core pipe fittings into a whole according to the butt joint surface, thus the inner core is formed. The manufactured inner core can put an end to overexpansion and fracture of the air pipe, and the moulding of the carbon fiber composite multi-way tube can be guaranteed to be normal.
Owner:厦门侨兴工业有限公司

Automatic shelling device of camellia oleifera fruits

The invention relates to the technical field of processing of camellia oleifera, in particular to an automatic shelling device of camellia oleifera fruits. The automatic shelling device comprises a heating mechanism, a shelling mechanism and a supporting frame, wherein the heating mechanism is fixedly arranged above the shelling mechanism; a discharge end of the heating mechanism communicates with an inner chamber of the shelling mechanism; a discharge opening is formed below the shelling mechanism; the supporting frame is fixedly arranged at the bottom of the shelling mechanism; the shelling mechanism comprises a shelling box body, shelling double-roll mechanisms, a multi-aperture screen mesh and a power mechanism; incline directions of the adjacent two groups of shelling double-roll mechanisms are opposite; the multi-aperture screen mesh is fixedly and obliquely arranged in the shelling box below the bottommost shelling double-roll mechanism; and the power mechanism drives the shelling double-roll mechanisms to rotate. According to the automatic shelling device of camellia oleifera fruits disclosed by the invention, when the camellia oleifera fruits are squeezed out, camellia oleifera seeds cannot burst, so that burst of camellia oleifera seeds during the shelling process of the camellia oleifera fruits can be effectively avoided, and the quality of camellia oleifera products can be greatly improved.
Owner:HUNAN SHENNONG CAMELLIA OLEIFERA TECH DEV

Feed additive capable of effectively preventing and treating pig coccidiosis and preparation method of feed additive

InactiveCN107594170APrevent intestinal epithelial rupture and bleedingPromote pig growthAnimal feeding stuffAccessory food factorsLigusticum chuanxiongThistle
The invention provides a feed additive capable of effectively preventing and controlling pig coccidiosis, and belongs to the field of feed additives. Each 100 parts of the feed additive comprises thefollowing raw materials in parts by weight: 4-8 parts of plant polysaccharide powder, 6-12 parts of a Chinese arborvitae twig and leaf fermented product, 8-12 parts of ligusticum wallichii, 4-8 partsof radix acanthopanacis senticosi, 8-14 parts of Japanese thistle herbs or roots, 5-11 parts of medicine terminalia fruits, 4-8 parts of lactobacillus bulgaricus powder, 6-10 parts of lactobacillus reuteri and the balance of a carrier, wherein the carrier consists of wheat bran and zeolite powder in the mass ratio of the wheat bran to the zeolite powder being 1 to (1-2). According to the feed additive, coccidiosis daughter spores can be effectively prevented from being departed from sporozoite and oocysts, so that the condition that the sporozoite breaks through enterocyte to cause intestinalepithelium to rupture and bleed can be effectively avoided, and the generation of the pig coccidiosis is avoided; and besides, the feed additive also has the effect of promoting growth of pigs. The all raw materials are green, safe and free from residues, and when being applied to ration of the pigs, the breeding benefits of the live pigs can be notably increased.
Owner:TWINS GRP
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