1561 results about "Needle Shape" patented technology

A device for dispensing an individual plastic fastener from a supply of fastener stock to couple together two or more objects. The supply of fastener stock includes a plurality of equidistantly spaced cross links which are coupled at one end to a continuous side rail. The fastener dispensing device includes a hollowed sharpened needle shaped to define a longitudinal bore and a feed mechanism for advancing the continuous side rail of the fastener stock into direct axial alignment behind the longitudinal bore of the hollowed needle. The feed mechanism includes a rotatably mounted feed shaft, a pair of feed wheels fixedly mounted on the feed shaft, each feed wheel comprising a plurality of sprockets which are sized and shaped to engage the supply of fastener stock, and first and second clutch wheels which are releasably matingly engageable with one another, the first clutch wheel being fixedly mounted on the feed shaft and the second clutch wheel being rotatably mounted on the feed shaft, each of the first and second clutch wheels including a plurality of ratchets. As a feature of the invention, the number of ratchets on each clutch wheel is at most equal to the number of sprockets on each feed wheel.

The invention relates to a catheter device including an optical fiber whose distal end is disposed within a hollow tube with a sharp or needle shaped distal end, which can penetrate tissue. The distal end of the optical fiber and the hollow tube are configured so as to emit, by refraction (total internal reflection) or reflection from a metal surface, laser energy at an angle of about 80° to about 90° relative to the longitudinal axis of the optical fiber and hollow tube. The hollow tube is mounted to a housing and may be surrounded by a sheath.

A robotic system for steering a flexible needle during insertion into soft-tissue using imaging to determine the needle position. The control system calculates a needle tip trajectory that hits the desired target while avoiding potentially dangerous obstacles en route. Using an inverse kinematics algorithm, the maneuvers required of the needle base to cause the tip to follow this trajectory are calculated, such that the robot can perform controlled needle insertion. The insertion of a flexible needle into a deformable tissue is modeled as a linear beam supported by virtual springs, where the stiffness coefficients of the springs varies along the needle. The forward and inverse kinematics of the needle are solved analytically, enabling both path planning and correction in real-time. The needle shape is detected by image processing performed on fluoroscopic images. The stiffness properties of the tissue are calculated from the measured shape of the needle.

A method of producing a porous thin-film-deposition substrate, which has the steps of: placing onto a substrate that has an electrostatic charge on its surface, fine particles with a surface electrostatic charge opposite to the electrostatic charge of the substrate surface, depositing a thin film on the fine-particle-placed substrate, and then removing the fine particles to form fine pores in the thin film; further, a method of producing an electron emitting element, which has the steps of: adding a catalyst metal on a substrate, placing fine particles onto the catalyst-added substrate, depositing a thin film on the fine-particle-placed substrate, then removing the fine particles to form fine pores in the film, and growing needle-shaped conductors on the catalyst metal that is exposed on a bottom face of the fine pore.

A medical anesthetic needle (1) is provided that includes an inner needle (3) of a straight needle shape, having a pencil-pointed tip (4), and an outer needle (2) of a straight tubular shape, having the inner needle inserted thereinto and therethrough from the rear end thereof. A foremost-end part (12) of a hollow, truncated conical shape or the like of the outer needle (2) is formed so that the minimum inner diameter thereof is smaller than the outer diameter of the main body (5) of the inner needle (3). When the inner needle (3) is inserted into and through the outer needle (2), the circumferential fore-end edge of the foremost-end part (12) is in close contact with the circumferential surface of the tip (4) or the main body (5) of the inner needle (3), and no gaps are thus formed therebetween. Therefore, when needled, a patient's nervous tissue is unlikely to be nipped in a gap between the inner and outer needles to cause pain to the patient.

A coil component is provided, and the coil component for an inductor is deformable dependent on flex of a flexible printed board due to elapse of time when mounted thereon, and has high resistance against dropping impact and has an inductance value. The coil component includes an anisotropic compound magnetic sheet which is layered on at least any one or both of the upper surface and the lower surface of an air core coil formed spirally in a plane and which is composed of flat or needle-shaped soft magnetic metal powder, which has a major axis and a minor axis and is dispersed in a resin material, the major axis of which corresponds to an in-plane direction of the air core coil.

The invention discloses a preparation method of polycarbonate/polyester alloy. Glycidyl methacrylate grafted ethylene-octylene multipolymer/organic modified needle-shaped aedelforsite composite toughener, i.e. a technology of simultaneously using organic/inorganic rigid particle toughener is adopted; the glycidyl methacrylate grafted ethylene-octylene multipolymer, organic modified needle-shaped aedelforsite, polycarbonate and polyester are melted and mixed in a double-screw extruder, to obtain high-performance alloy material. The prepared polycarbonate/polyester alloy has excellent integrated mechanical properties and size stability, the notched impact strength reaches 1200J/m, the tensile strength reaches 67MPa, the elongation at break reaches 250 percent, the flexural strength is up to 98MPa, the flexural modulus reaches 2750MPa, and the thermal deformation temperature in high load (1.82MPa) is up to 105 DEG C. Therefore, the prepared polycarbonate/polyester alloy can be applied in cars, and to outer decorations, household electrical appliances, IT and the like industrial products.

A technology for mechanically preparing to black tea with different shapes including needle shape, spiral shape, flat shape and particles is disclosed.

In the plasma reactor of the present invention, streamer discharge is caused in a wide region so as to increase a plasma generation region without complicating the architecture of the plasma reactor and increasing the cost. In the plasma reactor of the invention, a needle-shaped first electrode and a plate-shaped second electrode are disposed to oppose and to be perpendicular to each other, and the first electrode has a pointed portion as the end thereof on the side of the second electrode and the pointed portion has a point angle θ not less than 30 degrees and not more than 90 degrees, and preferably not less than 60 degrees and not more than 90 degrees.

A layer arrangement comprising, at least in a binderless layer thereof, one or more vapor deposited pigments like the preferred nanocrystalline beta-Cu-phthalocyanine nanocrystalline dye compound has been disclosed, wherein said layer layer arrangement is, in a preferred embodiment a photostimulable phosphor plate or panel having a binderless needle-shaped photostimulable alkali metal phosphor, and, more preferably, a CsBr:Eu<2+> phosphor, showing besides a high image definition, an excellent preservation of color stability; and wherein the thus produced binderless photostimulable phosphor screen is overcoated with a strong protective layer in order to provide ability for easy transport through a scanning module, without jamming, in a diagnostic radiographic image reading system.

The invention relates to an enhanced-type capillary-needle discharging plasma water treatment device, which belongs to the technical field of the application of low-temperature plasma, and relates to a constant-pressure plasma discharging reaction device for water treatment, and the enhanced-type capillary-needle discharging plasma water treatment device is characterized by comprising a reaction container and a discharging device, wherein the discharging device consists of a metal capillary power electrode, an insulation medium pipe, a metal end cover suspension electrode and an air chamber and is arranged inside the reaction container; working gas enters the metal capillary and the insulation medium pipe through the air chamber, gas discharging plasma is generated inside the insulation medium pipe between a needle-shaped pipe orifice on the lower end of the metal capillary and a metal end cap under the effect of high-voltage power supply, a generated product enters solution to be treated through small holes on the metal end cap, and solution inside the reaction container is purified; and the enhanced-type capillary-needle discharging plasma water treatment device has advantages that the utilization rate of active substances is high, the universality for different solutions to be treated is strong, the stability is good, easiness in integration is realized, and the exciting source requirement of the plasma is reduced.

The invention discloses an integrated quantitative sampling and reagent adding device. The device comprises a quantitative capillary tube, a bracket, a kit body, a piston and clamping rings, wherein the quantitative capillary tube is inserted into the bracket; the bracket is integrated with the kit body, the bracket is positioned at one end of the kit body, and the other end of the kit body is provided with the piston; the bracket is provided with capillary tube mounting holes of two diameters; the front end of the bracket is provided with a reaction cup sealing ring, and the tail end of the bracket is provided with a needle; the kit body is provided with an annular protrusion; the tail part of the kit body is provided with the clamping rings of different colors; the piston is provided with an annular protrusion; and the tail part of a reagent chamber in the piston is of a needle shape as same as that at the tail part of the bracket. The integrated quantitative sampling and reagent adding device provided by the invention can be effectively applied to quick detection in the fields of biology, chemistry, medicaments and the like and the industries of food, cosmetics and the like, and greatly improves the test precision in the detection process.

The invention provides a total artificial method for cultivating the cordyceps sinensis, and belongs to the field of the total artificial cultivation of the cordyceps sinensis. The method comprises the steps of: a. preparing a Chinese hirsutella suspension; b. acquiring, propagating and raising the host insect; c. infecting: taking the hepialus larva obtained by the step b, and soaking the suspension of the step a by a needle-shaped apparatus with the diameter which is less than 0.2mm at one end to prick the hepialus larva to complete the infection; and d. continuously raising. After the method is used, the improper mortality of the chrysalis can be reduced, and the eclosion rate of the hepialus is improved; the mating rate of the hepialus can be improved; and the infection rate of the Chinese hirsutell to the host hepialus larvae can be greatly improved, and the total artificial industrial production of the cordyceps sinensis can be realized.

The invention discloses a graphene in-situ load needle-shaped Co3O4 composite electrode material and a manufacturing method of the graphene in-situ load needle-shaped Co3O4 composite electrode material. Single-layer graphene with needle-shaped Co3O4 growing on the edge or two faces is adopted as a load frame of the composite electrode material, the plane size of a nanosheet layer is one micron to 50 microns, and the manufacturing method comprises the steps that graphite oxide is manufactured through a modified Hummers method, then ultrasonic treatment is carried out to obtain graphene oxide, a precursor of the composite electrode material is manufactured through the graphene oxide, and the precursor is annealed in inert atmosphere to obtain the composite electrode material. The manufacturing method of the composite electrode material is simple and environmentally friendly, according to the typical structure of the composite electrode material, the needle-shaped Co3O4 is combined with the surface or the side face of the graphene, a quasi two-dimensional nano structure is formed, the graphene sheet layer can be loaded with the needle-shaped Co3O4 in situ, the cycle life of the Co3O4 is prolonged, and the specific capacitance and other good electrochemical performance are improved.

To improve the use efficiency of materials and provide a technique of fabricating a display device by a simple process. The method includes the steps of providing a mask on a conductive layer, forming an insulating film over the conductive layer provided with the mask, removing the mask to form an insulating layer having an opening; and forming a conductive film in the opening so as to be in contact with the exposed conductive layer, whereby the conductive layer and the conductive film can be electrically connected through the insulating layer. The shape of the opening reflects the shape of the mask. A mask having a columnar shape (e.g., a prism, a cylinder, or a triangular prism), a needle shape, or the like can be used.

A needle shield and needle shield assembly are provided for preventing accidental needle sticks. The needle shield includes opposing sidewalls and is pivotable between an open position that allows use of the needle cannula and a closed position that covers at least the tip of the needle cannula. A locking member extends from one of the sidewalls of the needle shield and includes a relatively rigid base portion and a relatively flexible end portion. The needle cannula engages the relatively flexible end portion when entering the needle shield cavity, deflecting it with respect to the base portion. Upon any attempt to move the needle shield from the closed position to the open position, the needle cannula is directed by the locking member towards the relatively rigid base portion, thereby making it very difficult to reuse the needle cannula.

The invention relates to an inorganic heat-insulating material and a preparation method thereof. The inorganic heat-insulating material is prepared from the following raw materials in parts by weight: 15-37 parts of basic material, 45-70 percent of pigment and filler and 9-26 parts of auxiliary agent, wherein the basic material comprises the following raw materials in parts by weight: 10-20 partsof phosphoric acid, 3-8 parts of aluminium hydroxide, 2-8 parts of aluminum-silver slurry auxiliary agent, 0.5-5 parts of silicate and 1-5 parts of sodium carboxymethyl cellulose; the pigment and filler is one or a combination of potassium titanate whiskers, expanded perlite, ceramic microspheres, nano-silicon dioxide aerogel, heat-insulating powder, carbon fibers, meerschaum, needle-shaped wollastonite powder and magnesium hydrate; and the auxiliary agent is one or a combination of boron nitride, dichromium trioxide, glass powder, boric acid, nano-zirconia, calcium oxide and calcium-based bentonite. The invention inorganic heat-insulating material has strong insulating capability for solid conductive heat at high temperature (150-500 DEG C) and simultaneously also has strong insulating capability for radiation and flow conductive heat.

The invention belongs to the field of rock permeability test, and discloses a device for testing rock permeability under different pore fluid pressure. The device is characterized by comprising a high-pressure gas source generating device, a back pressure control device and a data detection and display device, wherein the high-pressure gas source generating device is connected with the back pressure control device, and the data detection and display device is connected with the back pressure control device; and the back pressure control device comprises a needle-shaped throttling valve and a rock core holder, wherein the needle-shaped throttling valve is arranged at the outlet end of the rock core holder. The invention also discloses a method for testing the rock permeability under different pore fluid pressure. A back pressure valve in the prior art is replaced by using the needle-shaped throttling valve to adjust the pressure of the rock core in the rock core holder under different pore fluid, the device has good back pressure stabilizing effect, and meanwhile, the processing production technology for the throttling valve is mature and has low cost and strong adaptability.

A vertebral body spacer of the present invention is used by being inserted between a vertebral body and a vertebral body (intervertebral space). The vertebral body spacer has a block body constituted of titanium or a titanium alloy as a main component thereof, and provided with a pair of contact surfaces to be made contact with the vertebral body and the vertebral body. The block body includes needle parts formed into a needle shape having both end portions and a porous part having through holes passing through the porous part in a thickness direction thereof, and a porosity of at least a surface of the porous part is larger than a porosity of each of the needle parts. The needle parts are inserted into the through holes so that the both end portions are projected from the contact surfaces.

Frusto-conical needle-shaped light guide paths are implanted on the surface of a display panel such that output light from display elements propagate through the needle-shaped light guide paths through total reflection, while external light repeats reflections multiple times on wedge-shaped surfaces of the light guide paths, and attenuates. A light absorbing film is coated on the surfaces of he needle-shaped light guide paths to increase a contrast ratio. Thus, a higher contrast can be accomplished in a bright room, and cross-talk between adjacent pixels is reduced, and a reduction in contrast due to display light is also alleviated by employing longer implanted needle-shaped light guide paths, and bringing light incident surfaces of the needle-shaped light guide paths into close contact with the surface of the display panel.