4058results about How to "Increase contact surface" patented technology

An expandable spacer, comprising: an axial tube having a surface, a proximal end and a distal end and a length, wherein, said surface defines a plurality of slits, said plurality of slits defining at least two axially displaced extensions, such that when said tube is axially compressed, said extensions extend out of said surface and define a geometry of an expanded spacer. Preferably the spacer is adapted to be inserted between two spinal vertebrae of a human.

The present invention provides tools and methods for mapping and measuring the articular surface of a joint (or of any bony surface) and for fabricating a prosthetic device based on this recorded data. In one embodiment, once the defect of the chondral surface has been identified, a guide pin is inserted arthroscopically. A fixation screw is driven into the subchondral bone in relation to a reference axis that is approximately central to the defect, the fixation device also serving to define a tangent point to the surrounding articular surface. A further cylindrical proximal extension of the screw that eventually serves as a fixation element for the surface prosthetic is concealed with a cover or plug. The depth positioning of the cover or plug establishes an origin or reference point for all future measuring, cutting, and prosthetic machining operations. A measuring tool having a static post that establishes the axial location of origin is inserted on the reference axis. By rotating the outer arm or outrigger of the measuring tool relative to the static post while also maintaining contact with the articular surface, an axial displacement or Z dimension is established relative to the origin for any point along the known radial sweep of the outrigger to determine the final geometry of the prosthetic surface which fits within the defect. Data recorded during the mapping procedure is entered into parametric engineering design software or similar algorithm to define a three dimensional surface matched to the bearing surface geometry to be implanted and reproduce the anatomic contours mapped.

An expandable spacer, comprising: an axial tube having a surface, a proximal end and a distal end and a length, wherein, said surface defines a plurality of slits, said plurality of slits defining at least two axially displaced extensions, such that when said tube is axially compressed, said extensions extend out of said surface and define a geometry of an expanded spacer. Preferably the spacer is adapted to be inserted between two spinal vertebrae of a human.

An expandable spacer, comprising: an axial tube having a surface, a proximal end and a distal end and a length, wherein, said surface defines a plurality of slits, said plurality of slits defining at least two axially displaced extensions, such that when said tube is axially compressed, said extensions extend out of said surface and define a geometry of an expanded spacer. Preferably the spacer is adapted to be inserted between two spinal vertebrae of a human.

The invention relates to a continuous manufacturing method of rubber masterbatch and rubber masterbatch prepared by the continuous manufacturing method. The invention discloses the continuous manufacturing method of rubber masterbatch. The continuous manufacturing method of rubber masterbatch comprises the following steps of: 1) adding stuffing into rubber liquor, and stirring to form a rubber/stuffing/solvent mixture; 2) feeding the rubber/stuffing/solvent mixture in step 1) to a flocculator, wherein the rubber/stuffing/solvent mixture is contacted and mixed with one or more of nitrogen, steam, stuffing aqueous slurry and oil, and flocculating to obtain a mixture of a rubber/stuffing compound and the solvent; and 3) removing the solvent and drying the mixture to obtain rubber/stuffing masterbatch. The invention further relates to masterbatch prepared by the method and a rubber product prepared by the masterbatch. Compared with the flocculating technology in current wet-method mixing, as no special requirements are posed to rubber and stuffing, the application range is wider. In addition, the manufacturing method is continuous in production process, efficient, low in energy consumption and less in labor, so that the cost is lower. Meanwhile, masterbatch prepared by the method is quite excellent in processability, physical and mechanical properties and product quality.

The invention relates to a directable magnetic mount (10) for a light emitter (20). The invention also relates to a light source (200), to a base (40) and to an illumination system (100). The directable magnetic mount comprises interface means (30) configured for conducting thermal energy away from the light emitter to a heat sink (40), and comprises a magnetic connector (50) configured for magnetically connecting the directable magnetic mount to the base. The magnetic connector is configured for thermally interconnecting the interface means and the heat sink. The interface means is configured for being thermally connected to the heat sink at a plurality of orientations of the interface means with respect to the heat sink. Each of the plurality of orientations of the interface means comprises a different emission direction of the light emitter.

The effect of the measures according to the invention is that it enables to omit the need for a heat sink in the light source which enables to reduce the size of the light source while also allowing to reposition and redirect the light emitted from the illumination system.

The invention discloses an automatic production line standard device detected by an electric energy meter, which comprises a loading platform, a feeding loop line belt and an electric energy meter automatic standard device. The loading platform is connected with the feeding loop line belt; a material taking manipulator and a bar code reader are mounted on the feeding loop line belt; the feeding loop line belt is connected with the electric energy meter automatic standard device; the electric energy meter automatic standard device is simultaneously connected with a blanking conveying loop line belt; a loading manipulator and another bar code reader are mounted on the blanking conveying loop line belt; the loading manipulator is connected with an electric energy meter feeding box; an unqualified product outlet is formed on the blanking conveying loop line belt; the working process of the whole production line in the whole device is controlled by a computer program through a production line control cabinet; and the calibration/ detection of the electric energy meter is controlled by a computer calibrating procedure through a calibrating control cabinet. The invention has the advantages of completely improving the calibrating/detecting work efficiency, reducing the labor intensity, improving the work quality, achieving the reliability and the safety of electrical connection, etc.

The invention discloses an oxidation type air purifying material which has low cost and good air purifying effect and does not have secondary pollution. The oxidation type air purifying material is formed by loading an inorganic oxidant on an inorganic adsorbing material. The invention provides a method for preparing the material simultaneously, which comprises the following steps of: drying the inorganic adsorbing material till the moisture of the inorganic adsorbing material is less than 4 percent; preparing aqueous solution, which is at the concentration of between 5 and 20 percent (g/ml), of the inorganic oxidant; and immersing the aqueous solution of the inorganic oxidant in the inorganic adsorbing material for 18 to 36 hours, draining redundant liquid, and drying in a drying oven at the temperature of between 50 and 130 DEG C.

The invention discloses a method for degrading organic pollutants in a water body through an activator composite material and activating persulfate, belonging to the technical field of water pollution control. According to the method, the activator composite material comprises nano zero-valent iron and biochar; the activator composite material and persulfate react with the organic pollutants when being existent at the same time so as to degrade the organic pollutants in the water body. The method comprises the following concrete steps: 1, adding persulfate into the water body containing the organic pollutants, wherein the molar ratio of persulfate to the organic pollutants is (20 : 1) to (200 : 1); 2, adding the activator composite material while stirring, wherein the molar ratio of the activator composite material and persulfate is 1 : 1. The method has the advantages that generated free radicals are good in oxidation property, a reaction system is stable, the pH range is wide, the utilization rate of an oxidant is high, and the like; in addition, the method has wide application prospects on aspect of repairing the organic polluted water body.

An electrical contact includes a first set of spaced apart cantilevered beams connected to a first rail, and a second set of cantilevered beams connected to a second rail. The first set of cantilevered beams project toward the second rail, and the second set of cantilevered beams project toward the first rail, wherein the first and second sets of cantilevered beams reside in alternating relationship. Each cantilevered beam is bowed and is outwardly tapered from its connected proximal to its unconnected distal end.

The invention relates to a composite for attaching, growing and/or repairing of living tissue in mammals. The composite comprises a non-expandable matrix polymer and a water-expandable porosity agent. The invention also relates to the use of said composite.

The invention relates to a glass fiberreinforced thermoplastic composite and a continuous fiber-reinforced composite, which are prepared with the following raw materials percentagewise by weight: 35-60 % of resin, 35-60 % of dip treated glass fiber and 0.5-5 % of auxiliary agent. The invention adopts resin and dip treated glass fiber as main raw materials, mixtures of antioxidant, ultraviolet absorbent and light-stability agent as main auxiliary agents, with logical formulations, eliminates the damage to glass fibrous surface caused by twin-screw with continuous fiber-reinforced composite producted by this manufacturing technique, improves product lustrous surface, binding properties between fiberglass and resins by a treatment for glass fibrous surface and mechanical properties of products, protects the materials for long periods from destruction because of addition of various stabilizing agents, and solves the limitation that general materials can not be used for a long time in extreme conditions such as high temperature, high humidity, radiation and so on.

The invention discloses a reinforced concrete structure based on 3D printing and a structure construction method. The method comprises the following steps that a foundation bottom plate is constructed, and a connection section is reserved on the foundation bottom plate; a steel bar structure of a structural column is bound to the connection section; a first prefabricated concrete outer shell is manufactured by adopting 3D printing, and concave-convex lines are formed in the inner surface of the first prefabricated concrete outer shell; the first prefabricated concrete outer shell is arranged on the steel bar structure of the structural column in a sleeved mode; a steel bar structure of a structural beam is bound, and the steel bar structure of the structural beam is bound to the steel bar structure of the structural column; a second prefabricated concrete outer shell is manufactured by adopting 3D printing; the second prefabricated concrete outer shell is mounted on the steel bar structure of the structural beam; concrete is poured in the second prefabricated concrete outer shell, and the structural beam and the structural column are completed. The prefabricated concrete outer shells are formed integrally by adopting a 3D printing technology, the continuous concave-convex lines are formed in the inner surfaces of the prefabricated concrete outer shells, the contact surfaces between the concrete poured in the prefabricated concrete outer shells and the inner surfaces of the prefabricated concrete outer shells are enlarged, compared with a smooth inner surface, friction is increased, bonding strength is improved, and a shell disengagement phenomenon is avoided.

The present invention provides an evaporator in which a plurality of tubes (30), in which a pair of plates (10) forming independent refrigerant passages (11a) and lib are respectively coupled to both sides thereof, are laminated in a row, and a tank (40) communicated with the tube (30) is formed at an upper or lower side of the tube (30), and the tank (40) is provided with an inlet pipe (31) and an outlet pipe (32), and a plurality of fins (50) are formed between the tubes (30), characterized in that a cold reserving part (20) for storing a cold reserving material is formed between the refrigerant passages (11a) and lib of the tube (30), and integrally formed with the plate (10).

The invention discloses a lithium-titanium oxide type lithium ion sieve absorbent and a method for preparing a precursor thereof, and relates to a method for preparing an inorganic absorbent for absorbing enriched lithium from salt lake brine, seawater and other liquid lithium resources. The method is characterized in that: titanium dioxide and lithium salt are taken as raw materials, ground by a ball grinder and dried so as to prepare a precursor Li2TiO3 of an ion sieve through a high-temperature solid-phase roasting method; and the lithium is eluted from the precursor Li2TiO3 by inorganic acid to prepare an ion sieve H2TiO3. The method has the advantage of simple technology, and the obtained ion sieve has the advantages of low solution loss and high adsorption capacity.

The invention discloses photo-curable 3D (three-dimensional) printing aluminum-base ceramic slurry and a method for preparing ceramic mold cores. The photo-curable 3D printing aluminum-base ceramic slurry comprises ceramic formula powder, photo-curable resin systems and additives. The photo-curable 3D printing aluminum-base ceramic slurry and the method have the advantages that the photo-curable 3D printing aluminum-base ceramic slurry is high in solid phase content, low in viscosity and applicable to photo-curable 3D printing photo-polymerization, the problems of high viscosity and poor flowability of existing slurry for photo-curable 3D printing ceramics, easiness in agglomerating ceramic particles in the existing slurry, uneven dispersion of the ceramic particles, low solid phase contents and the like can be solved, and application of photo-curable 3D printing to ceramic precision components can be expanded.

The invention discloses a three-dimensional (3D) printer which comprises a rack, a base, an X-axis movement system, a Y-axis movement system, a Z-axis movement system and a printing device, wherein the rack comprises a left upright post, a right upright post, an upper connecting plate and a lower connecting plate; the upper connecting plate and the lower connecting plate are connected with the left upright post and the right upright post, respectively; the base is connected with the lower connecting plate; the upper connecting plate is connected with a printing supplies connecting rack; the printing supplies connecting rack is connected with a printing supplies fixing disc; the printing device is connected with the X-axis movement system; the X-axis movement system is connected with the Z-axis movement system; the Z-axis movement system is connected with a guide rail of the left upright post and the right upright post; the Y-axis movement system is connected with the base; the X-axis movement system is provided with an X-axis movement guide rail through which the printing device moves; a power supply and a controller which are connected with each other are arranged at the bottom of the base; the controller is connected with the X-axis movement system, the Y-axis movement system, the Z-axis movement system and the printing device. The 3D printer is simple and compact in structure, small in size and low in manufacturing cost.