415 results about "Micro tube" patented technology

A method of administering a drug whereby a fine drug powder can be accurately administered to a target site (in particular, a target site in the body cavity) via fluidization and spraying with a gas by using a micro tube. Concerning the administration mode, in particular, the drug alone or a biopolymer is administered or the biopolymer is employed as a carrier in the above method. More specifically speaking, a method of administering a fine drug powder which comprises finely milling one or more types fine particles of the drug and / or the biopolymer, blending them each other, fluidizing the blend with a gas, then transporting the fluidized matter in a micro tube by the gas stream and spraying the fine drug powder from the tip of the micro tube toward the target site. Further, an administration method which comprises concentrically providing a capillary tube in the micro tube, supplying an aqueous solution of the drug and / or the biopolymer from the capillary tube into the gas stream and then mixing it with other fine particles of the drug and / or the biopolymer under transportation by the gas.

Systems and methods related to ultrasonic microtube dental instruments designed to cut around a broken instrument by allowing the broken instrument to be placed within a lumen of the microtube instrument while simultaneously boring with the broken instrument and being guided by the broken instrument.

A device and a system for humor component detection are capable of continuously carrying out measurement with accuracy for a long time and are excellent from the aspect of good hygiene. The humor component detection system comprises the humor component detection device and an extra-corporeal sensing device. The humor component detection device comprises a biosensor, a microbe containing portion, and an outer shell. Here, the biosensor comprises a sensing element and an electronic device. The microbe containing portion includes a pouched microtube blanketing film into which the electrodes of the sensing element are inserted, a plurality of acinous polymer-filmed porous microcapsules contained inside the film, and GOD genetically-modified bacteria contained in the microcapsules.

An incubator for storing micro-plates or micro-tubes comprises a handling robot positioned between shelves or drawers containing micro-titer plates or other containers useful for biological based reactions. The advantages of this configuration are the ultimate compactness of the system and increased speed or reliability achieved with more than one robot being able to access the same plate or tube. Alternative embodiments standardize the spacing and configuration of a robot track and a shelf track such that a shelf and a robot are interchangeable in a track.

Three dimensional integrated circuits with microfluidic interconnects and methods of constructing same are provided. According to some embodiments, and microfluidic integrated circuit system can comprise a plurality of semiconductor die wafers each having a top and bottom exterior surface. The semiconductor die wafers can form a stack of die wafers. The die wafers can comprise one or more channels formed through the die wafers. The channels can extend generally between top and bottom exterior surfaces of the semiconductor die wafers. A plurality of micro-pipes can be disposed between adjacent semiconductor die wafers in the stack. The micro-pipes can enable the channels to be in fluid communication with each other. A barrier layer can be disposed within at least one of the channels and the micro-pipes. The barrier layer can be adapted to prevent a coolant flowing through the at least one of the channels and the micro-pipes from leeching into the channels and micro-pipes. Other embodiments are also claimed and described.

This invention pertains to a hollow core photonic band gap chalcogenide optical glass fiber and to a fabrication method for making the fiber. The fiber, which is 80-1000 microns in outside diameter, is characterized by a solid glass circumferential region and a structured region disposed centrally within the solid region, the structured region includes a hollow core of 1 micron to several hundreds of microns in diameter surrounded by a plurality of parallel hollow capillaries extending parallel to the core, the core being centrally and longitudinally located within the fiber. Ratio of open space to glass in the structured region is 30-99%. The fabrication method includes the steps of providing a mold, placing chalcogenide micro-tubes around the mold, stacking chalcogenide micro-canes around the stacked micro-tubes, fusing the micro-tubes and the micro-canes to form a preform, removing the mold and drawing the preform to obtain the fiber. In an alternative fabrication method, the fiber is made by extruding flowing chalcogenide glass through suitably made plate to form a preform and then drawing the preform to form the fiber.

Single phase liquid refrigerant cryoablation systems and methods are described herein. The cryoablation systems drive liquid cryogen or refrigerant along a closed fluid pathway without evaporation of the liquid cryogen. A cryoprobe includes a distal energy delivery section to transfer energy to the tissue. A plurality of cooling microtubes positioned in a distal section of the cryoprobe transfer cryogenic energy to the tissue. The plurality of microtubes in the distal section are made of materials which exhibit flexibility at cryogenic temperature ranges, enabling the distal section of the cryoprobe to bend and conform to variously shaped target tissues.

A heat pipe with micro tubes (2), comprised of a solid heat conductor (1) provided therein with two or more parallel micro tubes (2), the micro tubes being filled therein with working medium which exchanges heat through phrase change; and the two ends of the heat conductor (1) are sealed and at least one of them is provided with a sealing strip of gradually shrinking shape that is formed from cold welding. A manufacturing process for the heat pipe and a heat-exchange system comprised of the heat pipe.

The invention relates to optical fiber cables and, more specifically, to an optical fiber cable especially suited for blown installation or pushing installation in microducts of small diameter. An exemplary microcable for installation in small microducts has an outer sheath as buffer tube that holds a plurality of optical fibers without a layer of strength elements stranded around the outer sheath, which is made of one single thermoplastic material.

The invention discloses an assembling adhesive-dispensing device for assembling a microtube of a microtube part and a micropore of a micropore part and dispensing adhesive. The assembling adhesive-dispensing device comprises a clamping locating system and a microscopy detecting system. The clamping locating system is used for clamping and locating the microtube part, the micropore part and an adhesive-dispensing needle. The microcopy detecting system is used for conducting image shooting and magnification on a working area and transmitting image signals of the shot image to a control main machine. The microscopy detecting system comprises a plurality of microscope assemblies, and magnification times and the depth of field of all the microscope assemblies are different. The clamping locating system comprises a microtube part clamping locating assembly, a micropore part clamping locating assembly and an adhesive-dispensing needle clamping locating assembly which are used for clamping and locating the microtube part, the micropore part and the adhesive-dispensing needle respectively. The assembling adhesive-dispensing device combines technology of microscopy vision detecting, micro-assembling and micro-adhesive-dispensing, has generality and practicality, and can achieve man-machine coordination assembling of the micron order microtube part and the micropore part and adhesive-dispensing operation.

An alternating current light-emitting device and the fabrication method thereof is disclosed. The alternating current light-emitting device includes at least one alternating current micro-die light-emitting module formed on a substrate and composed of at least two micro-dies connected to one another. The micro-dies, each includes at least two active layers, are electrically connected by a conductive structure, such that the active layers of the micro-dies take turns emitting light during positive and negative half cycles of alternating current, thereby providing a full-scale light-emitting area for all-time light emission.

An expandable, flexible multi-tubular cryoprobe operational with a near critical cryogenic working fluid. The inlet fluid transfer micro-tubes utilized are formed of material that maintains flexibility in a full range of temperatures from −200° C. to ambient temperature. During operation, the cryoprobe is mechanically actuated to provide radial expansion of the inlet fluid transfer micro-tubes. Thus, enhanced thermal contact with target biological tissue to be treated is provided.

A hydrogen storage composite material having a Mg—Ni based alloy with a coating of a catalytically active metal deposited on at least a portion of a surface of said Mg—Ni based alloy. The coating is less than about 200 angstroms thick and preferably is formed from iron or palladium. The composite material is capable of adsorbing at least 3 weight percent hydrogen and desorbing at least 1 weight percent hydrogen at 30° C. The Mg—Ni based alloy has a microstructure including both a Mg-rich phase and a Ni-rich phase, micro-tubes having an inner core of Ni-rich material surrounded by a sheathing of Mg-rich material, amorphous structural regions and microcrystalline structural regions.

The present invention discloses the design and fabrication of highly porous (up to 97%) scaffolds from biodegradable polymers with a novel phase-separation technique to generate controllable parallel array of micro-tubular architecture. The porosity, diameter of the micro-tubes, the tubular morphology and their orientation may be controlled by the polymer concentration, solvent system and temperature gradient. The mechanical properties of these scaffolds are anisotropic. Osteoblastic cells are seeded in these 3-D scaffolds and cultured in vitro. The cell distribution and the neo-tissue organization are guided by the micro-tubular architecture. The method has general applicability to a variety of polymers, therefore the degradation rate, cell-matrix interactions may be controlled by the chemical composition of the polymers and the incorporation of bioactive moieties. These micro-tubular scaffolds may be used to regenerate a variety of tissues with anisotropic architecture and properties.

The present invention provides a cooling system for a backlit device. The cooling system has a first heat collector that comprises a micro tube. The first heat collector is for maintaining contact with the backlit device. The cooling system also has a first radiator, a first pump, an interconnecting tubing, a fluid, and optionally a fan and / or a reservoir. The first radiator is for distributing and / or dispersing heat, the first pump is for driving a fluid flow, and the reservoir is for storing the fluid. The interconnect tubing is interposed between the first heat collector, the first radiator, and the first pump to form a closed cooling loop. Some embodiments further provide a method of cooling a backlit device by using such a cooling system.

The invention discloses an underground estavel root-irrigation method used for trees, which is characterized in that the method is provided with at least a vertical hole deep into the soil in the 30cm-100cm of radius range away from the root of the tree trunk; the length of the deep hole is 30cm-40cm deep in the ground; an auxiliary irrigator which is provided with a water inlet and a water outlet is arranged above the deep hole; the upper part of the auxiliary irrigator passes through a lever with the length more than the diameter of the auxiliary irrigator by 2-3cm; the auxiliary irrigator is communicated with an estavel pipe by a micro-pipe and a flow stabilizer. The method of the invention has simple fabrication, convenient construction, low price and high fertilizer utilization ratio. The method of the invention can prolong the service life of the product from current 6 years to more than 20 years after being used, reduce the irrigation loss by 15%, and improve the fertilization efficiency by 28%.

The invention relates to a preparation method for a coaxial micro-channel reactor and comprises the following steps: (1) selecting three polyfluortetraethylene micro tubes, wherein a micro tube with a larger inner diameter (A) is used as an outer tube and the other two with relatively small inner diameter (a1, a2) are used as inner tubes; (2) adopting epoxide resin to seal in a length of glass capillary or hollow fibre at the tube head supposed to enter micro tube A of the micro tube a1; (3) puting the two micro tubes a1and a2 in the micro tube A, wherein a1 is located in the position of the central axis of the micro tube A and the length of a1 entering the tube A is larger than a2; and utilizing epoxide resin to seal and fixe the micro tubes and get a coaxial micro channel; (4) and connecting micro tube a1 and a2 respectively to two injectors which are placed on an inject pump to form the coaxial micro-channel reactor. The invention has simple and convenient production process, and controllable micro-channel size, thereby realizing the use for producing monodisperse polymeric beads with the diameter ranging from 200 to 1000 micrometers. Furthermore, the invention has the advanthges of low cost and short consumption time.

The present invention discloses the customized forming process of gradient porous structural ceramic. By means of the combined fast light solidifying and gel molding formation technology, porous ceramic product in spherical pore and micro tube combining structure and complicated profile may be obtained. The technological process of the present invention is simple and has low cost, high precision and high forming efficiency.

The invention relates to an automatic high-pass micro-fluid reactor, a using method and application thereof. The micro-fluid reactor is a composite micro-fluid control chip constructed based on a surface hydrophilic material and a surface hydrophobic material, and comprises a plurality of radial micro tubes and micro cavities; and the micro-fluid reactor realizes automatic sample introduction of trace liquid samples in the micro tubes through a capillary acting force, and meanwhile realizes quantitative distribution and mixing of the trace samples by combining a capillary drain valve and a centrifugal force. The micro-fluid reactor can be applied to high-pass screening of chemical synthesis conditions and biochemical reaction conditions, and greatly saves manpower and cost. Compared with the conventional micro-fluid reactor, the micro-fluid reactor of the invention has a simple structure; and the using method does not need complex drive equipment and devices, simplifies the operation flow of the micro-fluid reactor, and is favorable for wide application of the micro-fluid reactor.

The invention relates to a titania porous micro tube optical catalyst modified by silver for degrading fenol in water and relative preparation. The inventive catalyst is TiO2 porous micro tube modified by silver with specific structure composed from direct deposit method, that using titanic chloride as titanium source, directly hydrolyzing and depositing, in the condition with some dispersers, to be filtered, washed, dried, baked and activated to obtain final TiO2 optical catalyst modified by silver. The inventive catalyst has specific structure, integral appearance, and uniform aperture, thereby improving the ability for degrading fenol, with high activity in optical catalysis, the ability for degrading fenol into water and carbon dioxide, and wide application.

An alternating current light-emitting device and the fabrication method thereof is disclosed. The alternating current light-emitting device includes at least one alternating current micro-die light-emitting module formed on a substrate and composed of at least two micro-dies connected to one another. The micro-dies, each includes at least two active layers, are electrically connected by a conductive structure, such that the active layers of the micro-dies take turns emitting light during positive and negative half cycles of alternating current, thereby providing a full-scale light-emitting area for all-time light emission.

The invention discloses an antimony sulfide negative electrode material with a micro-nano structure for a sodium-ion battery and a preparation method of the antimony sulfide negative electrode material. Materials with the structure such as a micro-tube, a nano-wire and spherical micro-nano level particles are prepared by a hydrothermal process and a precipitation method; the morphologies of the materials are regular and uniform; the first capacity exceeds 850mAh / g when the current density is 100mA / g; and the capacity is still 90% that of the second week after circulating for 40 weeks. Antimony sulfide powder with the micro-nano structure is synthesized by the hydrothermal process and the precipitation method; and according to the antimony sulfide negative electrode, the preparation method is simple, raw materials are available and the cost is low; the process is easy to control; and the prepared antimony sulfide with the micro-nano structure has excellent electrochemical sodium storage performance, and is a good sodium ion battery negative electrode material.

A method including disposing a first end plate adjacent to a second end plate, wherein the first end plate and second end plate each define a pattern of apertures. The first end plate is aligned with the second end plate such that the pattern of apertures in the first end plate is substantially aligned with the pattern of apertures in the second end plate. The method includes placing an end portion of each of a plurality of micro tubes in contact with the first end plate, the micro tubes being substantially vertically disposed and substantially perpendicular to a top surface of the first end plate, so as to place the micro tubes on the first end plate, and vibrating at least one of the micro tubes while the micro tubes are on the first end plate, thereby causing the micro tubes to insert into and through respective aligned apertures of the patterns of apertures in the first end plate and the second end plate. The method further includes separating the first end plate from the second end plate while the micro tubes extend therethrough, until the first end plate and the second end plate are disposed proximate to respective end portions of the micro tubes extending therethrough, and affixing each end portion of the micro tubes to a respective end plate, thereby forming a pathway in a micro tube heat exchanger component for the flow of an internal fluid to be heated or cooled by external flow of an external fluid.

The invention belongs to an inorganic chemical synthesis method and in particular relates to a preparation method of a cobalt sulfide micro tube with hiberarchy structure; in the invention, water-soluble cobalt salt is used as a metal source, thioacetamide is used as a sulphur source, ethanediamine is used as metal chelating agent, and cetyl trimethylammonium bromide CTAB is used as a template agent, in a closed reactor, hydro-thermal reaction is carried out under a certain temperature condition, so as to synthesize the micron tube-like cobalt sulfide with the hiberarchy structure, the outer diameter of the tube is about 1.5micron, the thickness of the tube wall is about 400nm, the average length is about 15micron, the tube wall is a nanoscale hexagonal sheet, and the length and the thickness of the sheet are 90nm and 22nm respectively; the synthesis method has the advantages of cheap and easy-obtaining raw material, simple equipment, low reaction temperature and good process repeatability and overcomes the problem of environment pollution caused by organic solvent in the previous synthesis method; the obtained product has wide application prospect in the field of biology, catalysis and material science and the like.

The invention relates to a growth method for reducing density of micro-tubes in a large-sized high-quality SiC single crystal. A sublimation method is used in a SiC single crystal furnace to grow the SiC single crystal, the air is vacuumized to 10<-4> Pa-10<-2> Pa before growth, the growth pressure is 5-50 mbar, the temperature is 2100-2400 DEG C, the rate is 10-500 mum / h, high-purity nitrogen is introduced into a growth chamber for 2-10 hours when the crystal grows for 20-24 hours, the same nitrogen is introduced again after an interval of 20 hours, the process is periodically repeated to obtain the intermittently nitrogen-doped SiC single crystal, the obtained SiC single crystal does not have the defects of cavity, silicon drop, polytype and the like, and the density of the micro-tubes is greatly reduced. The growth method achieves the objectives of reducing the density of the micro-tubes to the lowest and even to the level of zero micro-tube.

The invention provides an ultra-micro glue dispensing device and a method. The device comprises a glass micro tube, a glue solution and a solution moving needle which is arranged in the glass micro tube and can move to pass through the glue solution, wherein the glass micro tube is internally provided with the glue solution. The method comprises the step of realizing the ultra-micro glue dispensing by the micro liquid drop which is absorbed at the front end of the solution moving needle when the solution moving needle is penetrated through the glass micro tube. The invention is simple and easy to run, and can be used for not only the contact type ultra-micro glue dispensing but also the non-contact type ultra-micro glue dispensing, thereby being wide in an applicable viscosity range; the size of a glue spot can be easily changed by adjusting the diameter size of the front end of the solution moving needle, so that the control of glue dispensing quantity can be controlled; the micro adjustment of the size of the glue spot can be realized by controlling the micro distance between the front end of the solution moving needle and a glue dispensing surface; and the glue dispensing can not be limited within the vertical direction, and the micro glue dispensing can be realized at the any directions of the space by changing the turning angle of a turning pair.

The invention discloses an underground circular estavel penetration-irrigation method used for trees, which is characterized in that a circular ditch is arranged inside the soil 30cm-100cm in radius range away from the root of the tree trunk; one end of the circular ditch is provided with an estavel protection conversion chamber having the length of 10cm-20cm; an air penetration chamber is arranged above the estavel protection conversion chamber; during the period of installation, the upper end of the estavel protection conversion chamber is 5cm away from the ground surface and an air penetration pipe is higher than the ground surface by 1cm-2cm; the height of the estavel protection conversion chamber is 10cm-20cm and the internal diameter thereof is 5cm-7cm; the water inlet end of the estavel protection device is communicated with the estavel pipe which is connected with a water supply pipe by the micro-pipe; the water outlet end of the estavel protection conversion chamber is connected with the circular water penetration pipe. The method of the invention has the advantages of simple fabrication, convenient construction, low price and high fertilizer utilization ratio. The method of the invention can prolong the service life of the product from current 6 years to more than 20 years after being used, reduce the irrigation loss by 17%, and improve the fertilization efficiency by 30%.