159results about How to "Attached firmly" patented technology

The present invention discloses a kind of artificial tissue engineering biological cornea. The present invention utilizes homogeneous and xenogenous or heterogeneous cornea substrate as carrier, which may be preprocessed, and plants and cultures cells on it to constitute engineering biological cornea. The cornea constituted with the carrier has very low immunogenicity, unchanged thickness and diopter after transplantation, grown autogenous nerve, mostly restored cornea aesthesia, firmly adhered epithelium and normal connection between the cells and between the cell and the substrate membrane.

The invention relates to a pressure-while-drilling measuring device and a measurement method thereof. The pressure-while-drilling measuring device is characterized by comprising an outer shell in which a central flow channel is formed; the outer shell is provided with a split-flow pressurization mechanism, an execution mechanism and an oil line reversing mechanism sequentially; the execution mechanism is provided with a pumping mechanism; the split-flow pressurization mechanism controls the opening and closing of the execution mechanism by using the acting force of slurry in the central flow channel and a split-flow piston; and the execution mechanism and the oil line reversing mechanism are matched with each other to push out and reset all sliding blocks in the pumping mechanism, so thatthe stretching and retraction of a probe can be realized, and bottom fluid is pumped by a pumping cylinder and a piston rod of the pumping mechanism and is measured. The pressure-while-drilling measuring device can accurately acquire the underground formation pressure in real time, staff can timely identify the complex underground geological factors by using the formation pressure data and further adjust the drilling parameters, and the complex conditions of leakage, collapse, overflowing, blowing and the like during drilling can be effectively avoided, so that the pressure-while-drilling measuring device can be widely used in the drilling process.

The invention discloses an integration device for stacking, bundling and labeling bill coupons. The integration device comprises a controller, a stacking mechanism, a bundling mechanism and a labeling mechanism, wherein a bill coupon stack transfer mechanism is arranged between the stacking mechanism and the bundling mechanism; a bill coupon bundle transfer mechanism is arranged between the bundling mechanism and the labeling mechanism; the stacking mechanism can be connected with a bill dispenser port of a sorter for stacking a certain quantity of bill coupons into bill coupon stacks and sending the bill coupon stacks to the bundling mechanism to bundle the bill coupon stacks into bill coupon bundles; and then the bill coupon bundles are transferred into the labeling mechanism through the bill coupon bundle transfer mechanism to finish labeling the bill coupon bundles. Due to the stacking mechanism, the defect of inclined bill coupon bundles caused by consistent direction of all bundling belts during stacking the bill coupon bundles is overcome. In addition, a guide block is also arranged, so that a PE (Poly Ethylene) film stretched due to the influence of a heat-seal knife faces downwards when a product is sent to the labeling mechanism, and the label cannot be unrecognized because of deformation, cracking or dropping out after labeling. The integration device can be used as a pre-seal bundling machine and lays a better foundation for the intellectualization of a packet processing system.

The invention discloses a spray-seeding fiber material and a preparation method of the spray-seeding fiber material. The spray-seeding fiber material is prepared from, by weight, 85-95% of straw and / or wood, water-soluble polymer compounds, a binding agent, talcum powder and an additive. According to the technical scheme, the spray-seeding fiber material is high in adhesive force and capable of being firmly attached to slope faces, so that the spray-seeding working procedure is greatly simplified, and the construction period is shortened.

The invention relates to a multilayer microneedle array and a preparation method thereof. Needle points of the microneedle array have a multilayer structure, and are prepared by a method of performingreproduction with a formwork repeatedly. Through the unique multilayer structure of the needle points, the microneedle array can realize mechanical interlock with tissue, so that the tissue adhesivecapacity of the microneedle array can be reinforced. The preparation method provided by the invention has the advantages of being simple to operate, high in generality, convenient for mass productionand the like, the prepared microneedle array can be firmly fixed on the tissue, delivery of bioactive substances of medicines and the like is realized, and the microneedle array has potential application prospects and operation significance in biomedical science field of disease treatment, wound healing, tissue regeneration and the like.

The invention relates to a preparation method for tin oxide-doped composite conductive powder using kaolinite as base material. The invention is characterized in that dispersing agent is mixed with kaolinite ore to produce homogeneous and dispersed suspended ore slurry; chemical co-precipitation method is adopted for homogeneous precipitation in the form of hydroxide or hydrous oxide, then the composite conductive powder is obtained after filtering, washing, gas-liquid separation, calcination and grinding of precipitation products. The invention has the advantages of greatly reduced preparation cost of conductive powder, greatly improved use value of kaolinite resources, easy dispersion of the composite conductive powder, stable quality, light powder color, good conductivity, conductive additives for various colors (such as white) and wide application prospect.

The invention relates to the technical field of electroplating, and particularly relates to a preparation method of a nickel-polytetrafluoroethylene coating. According to the invention, nickel is combined with polytetrafluoroethylene, a fluorinated ethylene-propylene copolymer, a perfluoroalkoxy copolymer and other assistants to be used as an electroplating solution and used for electroplating under certain conditions. The invention can be widely applied to various base materials such as steel, copper alloys, wrought aluminum, cast iron, stainless steel and the like, and can be also perfectly used on various injection molding materials except pure rubber, such as silica gel, TPO0, PVC (polyvinyl chloride) and the like. The coating is favorable in wear resistance and non-corrosibility, has weldability and hardenability, and causes no negative effect on the surfaces of other molds.

The present invention discloses a non-precious metal sulfide type supported catalyst. In the catalyst, at least one of molybdenum or tungsten, and at least one of cobalt or nickel are supported on a carrier in a wholly or partially sulfide state; the carrier comprises a carbon material; the mass of at least one of molybdenum or tungsten is 10 to 50% of the total mass of the catalyst, the mass of at least one of cobalt or nickel is 1 to 20% of the total mass of the catalyst, and the mass of the carrier is 1 to 20% of the total mass of the catalyst. The invention also discloses a preparation method and use of the catalyst. Compared with the prior art, the catalyst of the invention has high active component content, more active sites and exposed sites, and active components are uniformly dispersed on the carbon material, and when the catalyst is used for preparing high-heat-stability fuel, the catalyst has high hydrodesulfurization activity and aromatic saturation activity.

The invention discloses a process for preparing activated carbon for air-raid shelters. The process comprises the following steps: finely selecting raw materials, preparing a first mixed liquid, preparing a second mixed liquid, preparing a third mixed liquid, soaking, calcining, preparing a fourth mixed liquid, performing secondary soaking, and performing secondary calcining. The process has the advantages that the produced activated carbon for air-raid shelters has the advantages of being high in strength, good in adsorption property, large in adsorption capacity, small in ash content, rapidin adsorption velocity, long in protection time, good in protection effect, and the like, has very good effects in industrial waste gas treatment, prevention of toxic and harmful gases, and the like,and particularly has excellent adsorption properties which are comparable by common granular carbon for benzene, hydrocyanic acid and chloroethane in waste gases; meanwhile, due to the product, defects of conventional coal columnar carbon are solved, the field of activated carbon is further widened, defects of the coal columnar carbon are further alleviated, and a relatively excellent product is provided for waste gas treatment, toxic and harmful gas prevention, and the like.

The invention relates to a wearing type electrocardiogram acquisition costume used for the dynamic and real-time acquisition of electrocardiosignals. The costume comprises a front part (1) adaptive to the front bosom of the human body and a rear part (2) adaptive to the back of the human body, wherein the back of the front part (1) is lined with a lining (3), and an interlayer is formed between the lining (3) and the front part (1); the side of the lining (3) depart from the interlayer is provided with ten electrocardiogram acquisition pieces corresponding to ten acupuncture points of the front bosom of the human body or ten electrocardiosignal acquisition points one to one; and the ten electrocardiogram acquisition pieces are correspondingly provided with ten leading-out leads (6). The invention ensures that a user feels comfortable and is convenient to use; and after the costume is worn, the real-time acquisition of the electrocardiosignals can be directly carried out.

The invention discloses a liquid crystal display screen detecting and assembling device. The liquid crystal display screen detecting and assembling device is characterized by comprising a fixing device, a liquid crystal display screen detecting device and a liquid crystal display screen detecting and assembling device body, wherein the liquid crystal display screen detecting device is arranged below the fixing device, and the liquid crystal display screen detecting and assembling device body is arranged above the fixing device. The liquid crystal display screen detecting and assembling device can be used for detecting the performance of the front face of a liquid crystal display screen, pasting a label to the back face of the liquid crystal display screen and pressing a circuit board in an attaching mode to enable the circuit board to be tightly attached to the liquid crystal display screen; detection, pasting of the label and pressing attachment of the circuit board can be conducted at the same time, in this way, the production time of the liquid crystal display screen is shortened, and the production efficiency is improved.

A mandibular condyle fracture reduction dilator comprises two forceps handles which are connected in a cross hub manner. Front ends of the two forceps handles are dilating portions while rear ends of the two forceps handles are holding portions, the dilating portions comprise a lower dilating portion and an upper dilating portion, the lower dilating portion matches with a mandibular incisura, and the upper dilating portion matches with a zygomatic arch corresponding to the mandibular incisura. The mandibular condyle fracture reduction dilator further comprises a positioning component for locking a gap between the upper dilating portion and the lower dilating portion, the positioning component comprises a screw stem and a nut matching with the screw stem, the screw stem is provided with a scale graduation area for displaying the size of the gap between the upper dilating portion and the lower dilating portion, the holding portions comprise an upper holding portion and a lower holding portion which match with each other, a perforated hole is arranged on the lower holding portion, one end of the screw stem penetrates through the perforated hole to be pivotally connected with the upper holding portion, and the nut is sleeved at the other end of the screw stem in a screwed manner, and is located on the outer side of the lower holding portion. The reduction dilator can be used for directly operating in a surgical site of the maxillofacial region of a patient, exerts force on the outside of the oral cavity of the patient, leads joint clearances to be exposed easily, and is convenient in operation, an additional incision is omitted, and tissue injury is low.

The invention relates to single plate rolling type lamination production equipment. The single plate rolling type lamination production equipment comprises a sheet material conveying part and a film laminating part, wherein the sheet material conveying part comprises a conveying mechanism and an absorption mechanism which is arranged at the rear end of the conveying mechanism and is used for absorbing a sheet material conveyed by the absorption mechanism and enabling the sheet material to be at a suspended state; the film laminating part comprises a hoisting mechanism for driving a thin film to move toward the absorption mechanism and a smoothening mechanism which is driven by the hoisting mechanism to enable the thin film to be unfolded from the middle to two sides and attached to the sheet material. By adopting the single plate rolling type lamination production equipment, the problem that the thin film is not smoothly stuck so that a lot of air bubbles are easy to cause is overcome.

The invention relates to a flat plate type heat dissipation structure with high heat dissipation effect, comprising a first heat dissipation unit and a second heat dissipation unit. The first heat dissipation unit is provided with a hollow heat dissipation body which is vacuumized and closed, a plurality of supporting plates which are formed into a whole in the hollow heat dissipation body to divide the interior of the hollow heat dissipation body into a plurality of containing spaces as well as a plurality of micro structures which are formed into a whole on the inner surface of the hollow heat dissipation body; wherein each containing space is filled with operating fluid. The second heat dissipation unit is formed into a whole on the outer surface of the first heat dissipation unit.

The invention provides an absorbable and attachable hemostatic sponge and a preparation method thereof. The hemostatic sponge is prepared from biodegradable gelatin. The hemostatic sponge has a microscopic porous structure. The microscopic porous structure is soaked in an EDC-NHS solution so that at least one surface is modified with a succinimide group. The absorbable and attachable hemostatic sponge has good adhesion to the wound surface, can be firmly attached to the surface of the tissue, effectively prevents the hemostatic sponge from falling off or moving during the hemostasis, and effectively stops bleeding of the wound surface and prevents secondary bleeding. The hemostatic sponge has a low volume swelling ratio and a high mass swelling ratio, has a remarkable hemostatic effect anddoes not cause compression of tissue and nerves. In addition, the preparation method is simple and has good practicability and generalizability.

The invention discloses a bridge construction spraying device convenient to use and adjustable in spraying area. The bridge construction spraying device comprises an outer box body, universal wheels are fixedly mounted at four corners of the bottom of the outer box body, an L-shaped handle is fixedly mounted at the top end of the outer side of the outer box body, a control switch is fixedly mounted at one end of the top of the outer box body, a material barrel is arranged at one end in the outer box body, a feeding opening is formed in the upper part of the material barrel, a stirring motor installed on the outer box body is arranged at the upper part of the material barrel, a stirring rod stretching into the material barrel is installed on an output shaft of the stirring motor, a water pump and a spring reel are installed at the other end in the outer box body, a double-shaft moving mechanism is fixedly installed at one end of the outer box body and comprises a transverse moving mechanism, and a transverse moving block is installed on the transverse moving mechanism in a sliding mode. The spraying area, the telescopic length of a spray head and the up-down and left-right positions can be adjusted, and therefore spraying use is facilitated.

The invention discloses a 3D curved surface AF coated screen mobile phone protective film and a preparation method thereof. A hardened layer, a PET layer with the polarization angle of 70-100 degrees, a modified photo-thermal dual-curing acrylic polyurethane layer, a non-optical-axis optical elastic layer and a special silica gel pressure-sensitive adhesive layer for an AF screen are adopted as main structures; thenon-optical-axis optical elastic layer has no polarization angle; an upper protection layer can realize a self-separation function, and the modified photo-thermal dual-curing acrylic polyurethane layer adopts specific material components, so that both thermal curing and photo-curing can be carried out. The protective film and the preparation method thereof have the advantages that bending forming molds of different specifications do not need to be customized according to the sizes of different 3D curved surface AF coated screen mobile phones during production, forming can be completed only through cutting and flaking, film pasting can be achieved at a client side in the follow-up process only through positioning film covering and ultraviolet lamp UV curing and attaching, hot-pressing high-temperature operation and demolding are not needed in the whole process, the overall production efficiency is remarkably improved, and the production cost is greatly reduced.

The invention provides a rotor iron core and a permanent magnet synchronous motor. The rotor iron core comprises a rotor support which is cylindrical; multiple damping pressing blocks which are strip-shaped and arranged on the outer surface of the rotor support along the axial direction of the rotor support; multiple sets of permanent magnets of which each set of permanent magnets are surface-mounted on the rotor support between the two adjacent damping pressing blocks along the axial direction of the rotor support and abut against the damping pressing blocks so that the damping pressing blocks are enabled to press and fix the permanent magnets; and two damping end rings which are arranged at both ends of the rotor support, wherein the two ends of the damping pressing blocks are respectively connected with the two damping end rings to cooperate and form damping windings, and the damping windings can cut the magnetic force lines generated by the stator windings in the permanent magnet synchronous motor when the permanent magnet synchronous motor oscillates. The rotor iron core can stabilize the relative position between the permanent magnets and the rotor support and can effectivelyreduce the oscillation phenomenon in the permanent magnet synchronous motor.

The invention relates to an autoclave inner cavity insulation device. According to the invention, insulation ceramic fiber is paved on an inner wall of a housing. The insulation device is characterized in that a stainless steel protective plate is connected on the inner side of the insulation ceramic fiber; a layer of galvanized wire mesh is arranged on the outer side of the stainless steel protective plate; and a layer of high-temperature-resistant adhesion paint is sprayed on the surface of the insulation ceramic fiber. The high-temperature-resistant adhesion paint is nano-grade zirconium dioxide. With the paint, a cured layer is formed on the surface of the insulation layer. The cured layer and the surface of the insulation ceramic fiber are integrated.

Disclosed is a suction plate and, more particularly, a suction plate in which a suction belt is pressed down via external force along a liner to which an outer bottom surface is attached to while contacting a target surface and then is restored upwardly when released from the external force, so that a vacuum can be formed between the central part of the liner and the target surface. Because when a user presses the liner against the target surface and releases the liner, the outside of the liner is firmly attached to the target surface via the suction belt and a central part which does not have the suction belt tends to move upward via restoring force, thereby firmly attaching the pad to the target surface.

The invention belongs to the field of medical apparatuses and relates to a locking steel plate for fracture, in particular to a locking steel plate for posterior double tibial plateau fracture. The locking steel plate comprises a plate body; the plate body comprises a plateau locking part, a tibial body locking part and a locking reinforcing par, wherein the tibial body locking part is positioned below the plateau locking part, one end of the tibial body locking part is fixedly connected with the plateau locking part, and the locking reinforcing part is connected with the other end of the tibial body locking part; the plateau locking part, the tibial body locking part and the locking reinforcing part are respectively provided with a locking hole; the inner wall of each locking hole is provided with internal threads; the plate body and the tibia are locked by screws provided with external threads matched with the internal threads. The locking steel plate can be used for well supporting double tibial plateaus and can be matched with the shape of the bone on the rear side of the tibia so as to realize relatively firm attachment; the support effect is reinforced by means of the locking reinforcing part, the overall supporting and locking effects are better, and the operation is relatively convenient just by one integrated plate body.

The invention relates to a semi-tubular self-piercing rivet (1) having a rivet head (10) and a rivet shaft (30), the shaft bore (32) of which satisfies the following relationship in relation to the length of the semi-tubular self-piercing rivet: (formula I), the total length of the self-piercing rivet LN being <= 4 mm. The invention further relates to a corresponding self-piercing rivet joint, toa method for producing the self-piercing rivet, and a method for producing the self-piercing rivet joint.