435results about How to "Prevent dislocation" patented technology

A new lens design and method of implantation uses the change in pupil diameter of the eye concurrent with the changes induced by a contraction of the ciliary muscle during the accommodative reflex, in order to assist in focusing of nearby objects. This new intraocular lens consists of two parts. The posterior part or haptic part is inserted behind the iris and in front of the natural lens or artificial implant. Its main purpose is to participate in the accommodative mechanism and to prevent excessive lateral movement and luxation of the lens. An anterior or optical part is made of flexible material and is placed before the iris. Its diameter is variable but should be large enough to cover the pupillary margins to some degree under various conditions of natural dilation. The anterior and posterior part of the lens are separated by a compressible circular groove in which the iris will settle. The diameter of this groove is slightly larger than the pupillary diameter measured under normal photopic daylight conditions and for distance vision. Since the pupil becomes smaller in near vision, the iris will exert a slight pressure at the level of the groove of the lens which will cause a progressive and evenly distributed flexing of the anterior part of the intraocular lens, as the diameter of the compressible circular groove slightly decreases. This flexing will induce an increase in refractive power which corresponds to a variable part of the amount necessary for focusing nearby objects.

An inorganic binder and a dissolving agent are put into ceramic powder. They are mixed to form a plastic green mixture. Then the said mixture is formed into a thin green layer. Preferably, this thin green layer will be preheated and dried such that the thin green layer will be hardened due to the bonding effect of the inorganic binder. A portion of the thin green layer exposed under a directed high-energy beam is sintered, preferably by a laser beam, to cause ceramic molecules to bond together locally due to heat fusion. By controlling the scanning path of the high-energy beam, a two-dimensional thin cross section of the ceramic part in arbitrary form can be produced. A second thin ceramic layer can be built onto the first thin ceramic layer and bonded to it by the same method. After multiple repetitions of this procedure a three dimensional ceramic part can be fabricated layer upon layer. The green portion, which is not scanned by the high-energy beam, will be removed with suitable method. A ceramic part can be rapidly produced in this way.

In one aspect, the present invention provides an implant device for use in an eye with elevated intraocular pressure or glaucoma. In another aspect, the present invention provides a method for lowering intraocular pressure and/or treating a condition associated with elevated intraocular pressure using the implant device of the present invention.

The invention discloses a manufacturing method of a GaInP/GaAs/InGaAsP/InGaAs four-junction solar battery. By utilizing a wafer bonding method, the GaInP/GaAs/InGaAsP/InGaAs four-junction solar battery is integrated by a GaInP/GaAs double-junction solar battery growing based on a GaAs substrate and a InGaAsP/InGaAs double-junction solar battery growing based on an InP substrate; by utilizing the InP as a supporting substrate, the four-junction solar battery with respective band gap energies of 1.9/1.4/1.05/0.72 eV is realized, sunlight full spectral absorption and energy conversion are realized to a greater degree, and 32.8 percent of efficiency is realized in irradiation of AM1.5G and under the sun. Based on the development of two kinds of double-junction batteries, the bonded four-junction solar battery reduces the shortages of high cost caused by utilizing a plurality of different substrates in a mechanical cascade solar battery system and complex optical system and optical loss in an optical integrated battery, and effectively solves the problem of lattice mismatching of growing a uniwafer four-junction cascade semiconductor solar battery material. The high voltage and low current outputs are realized and the resistance consumption in a high concentrator battery is reduced.

The invention discloses a modified self-insulating composite external wall material, and belongs to a gypsum building material. The material comprises the following components in percentage by weight: 75 to 84 percent of gel material, 0.2 to 1.5 percent of heat insulating material, 3 to 6 percent of modifying agent and 12 to 18 percent of water; the gel material consists of gypsum, fly ash, cement and lime, wherein the gypsum and the fly ash are in the majority; the heat insulating material is one or more of polyphenyl granules, rice hulls, straws, saw dust and expanded perlite; and the modifying agent is a common salt compound or a mixture of the common salt compound, aluminum powder and polyvinyl chloride (PVC) latex powder. The external wall material for manufacturing external wall building blocks or external wallboards by optimized proportion and modification treatment remarkably improves the comprehensive performance of water prevention, heat insulation, shock resistance and pressure resistance; and production and construction are convenient, the raw materials are easily obtained, industrial and agricultural byproducts are fully utilized, and environmentally-friendly and energy-saving requirements are met.

The invention relates to a transmitter of artificial heart support valve, which comprises duct head, tube, near controller, middle tube, guide tube, external protector, at least one locking wire, and at least one support drawing line. The external protector can be external pin tube, or breakable external protector or the line compressor which can be twisted. The invention can rotationally position the valve, and effectively fix the expanded valve, reduce the abrasion, and avoid fall off.

An intraocular lens assembly operable to be positioned in a capsular bag, the IOL assembly including a lens, a haptic connected to the lens by connecting structure, and an anti-dislocation element extending from at least one of the lens, haptic and connecting structure, the anti-dislocation element being operable, when positioned in the capsular bag and upon application of a dislocating force, to become wedged and inhibit dislocation of the lens from the capsular bag. The anti-dislocation element may be generally coplanar with the lens or tilted with respect to a plane of the lens.

The invention discloses a complete set of positioning device for artificial total hip joint replacement, which belongs to the field of medical equipment. The positioning device is conducive to the accurate osteotomy of the femoral neck with the oscillating saw, the accurate positioning of the use direction of the acetabular file, the square head bone knife, and the medullary cavity file, and the insertion of the femoral prosthesis into the femoral marrow at the original position and original angle. The cavity is beneficial to preserve the femoral calcar and the length of the femoral neck, which is conducive to the correct placement of the acetabular cup, shortens the operation time, reduces intraoperative bleeding, improves the success rate of the operation, relieves joint pain, corrects deformity, restores and improves joint movement Function.

The invention discloses a lamination preparation process of a curved-surface double-glass photovoltaic module. Firstly, a layer of binding material covers face plate bent glass, a solar cell is arranged on the binding material, a layer of binding material covers the solar cell, and then rear plate bent glass covers on the binding material. After the panel bent glass is aligned to the rear plate bent glass, a vacuum rubber ring is sleeved on the periphery of the face plate bent glass and the rear plate bent glass, the solar cell and the two layers of binding materials are enabled to be in a closed space formed by the face plate bent glass, the rear plate bent glass and the vacuum rubber ring, the closed space is vacuumized then, the face plate bent glass and the rear plate bent glass compact the solar cell and the binding materials arranged between the face plate bent glass and the rear plate bent glass to prevent relative sliding, and an assembly to be packaged is obtained. The assembly to be packaged is placed into a high-pressure autoclave laminating machine to be carried out with lamination, and the vacuum rubber ring is removed and the curved-surface double-glass photovoltaic module is obtained after the lamination. The lamination preparation process of the curved-surface double-glass photovoltaic module can utilize one device to prepare photovoltaic modules with different radiuses of curvature.

Embodiments of a battery taught herein are directed to preventing a displacement between bipolar battery stacks or between a bipolar battery stack and an electrode tab. A bonding portion is formed at a part of a contact surface where a collector positioned at both ends in a stacking direction of a bipolar battery stack is bonded to the electrode tabs. The electrode tab and the collector are fixedby such a bonding portion. Further, the bonding portion is formed at a part of a contact surface where adjacent bipolar battery stacks are bonded to each other. Bipolar batteries positioned at upper and lower portions in the stacking direction are fixed by such a bonding portion.

The invention discloses a traction bracket, an orthodontic system, and an orthodontic method thereof. The traction bracket includes a traction part, a main part, a cover part and a connection part. A main trough is formed in the main part. A locking traction hole is formed in the main part. One end of the locking traction hole is opened on surface of the main part to form a cylindrical traction part inlet while the other end is opened in the main trough in the main part to form a locking hole. The traction part is matched with and connected to the locking traction hole. The main part is connected to the cover part through the connection part. The bottom surface of the cover part is matched with the surface of the main part and covers the main trough. The surface of the cover part is matched with the surface of the main part to form a smooth curve surface. The traction part in the traction bracket is convenient to mount. The traction part not only helps the traction bracket to slide but also completes locking of the bracket and an arch wire after change of a traction bolt (a locking bolt) so as to achieve corresponding orthodontic effects.

The invention discloses a multilayer composite membrane passivation structure of a table top high-power semiconductor device. The multilayer composite membrane passivation structure comprises P-type boron junction areas and an N-type phosphorus junction area, the upper end and the lower end of the N-type phosphorus junction area are provided with the P-type phosphorus areas respectively, and an alpha-polycrystalline silicon layer, a semi-insulating polycrystalline silicon thin membrane, a low-temperature heat oxidation layer, a high-temperature Si3N4 thin membrane, a negative charge glass passivation layer and a low-temperature heat oxidation layer are sequentially arranged on the surface of a PN junction of a table top of the table top high-power semiconductor device from inside to outside. A manufacturing technology of the multilayer composite membrane passivation structure of the table top high-power semiconductor device includes the following steps: a, depositing the alpha-polycrystalline silicon, b, depositing semi-insulating polycrystalline silicon, c, depositing the low-temperature heat oxidation layer, d, depositing Si3N4, e, conducting passivation on glass, and f, depositing the low-temperature heat oxidation layer in the outmost layer. The multilayer composite membrane passivation structure and the manufacturing technology have the advantages that the alpha-polycrystalline silicon layer is deposited, so that crystal lattice adaptation can be achieved, damage to crystal lattices of a silicon wafer in a groove can be repaired, leaked currents in the surfaces of junctions are reduced, and the stability and the reliability of the device at the high temperature are improved.

The invention provides a door body for a refrigerator and the refrigerator with the same. The door body comprises a body, a pre-buried box and a circuit board assembly, wherein the pre-buried box is arranged in the body in a direction which forms a preset angle with the vertical direction; the pre-buried box is communicated with the upper surface of the body so as to form a faucet with the upper surface; the lower end part of the pre-buried box is connected with the right surface of the body; the circuit board assembly is matched with the pre-buried box; and the circuit board assembly is inserted into the pre-buried box through the faucet. According to the door body, the position of the pre-buried box is more firm; and the circuit board assembly is displayed closer to one side of the doorbody, so that the display is more attractive; according to the refrigerator, the position of the display circuit board of the door body can be regulated as required through the position of the presetpre-buried box, so that the display position on the refrigerator is more flexible in design and the selection of a user is more diverse; in addition, the display position of the refrigerator is more fixed, so that dislocation between the display position and a transparent hollowed window of the door body is avoided.

The invention discloses a method for epitaxial growth of high-quality and large-size monocrystal diamond, and belongs to the field of preparation of semiconductor materials. The method is characterized in that the surface roughness of a large-size single crystal diamond sheet grown through mosaic splicing is reduced to be lower than 0.2 nm through precision polishing; then electron beam evaporation is adopted to deposit metal nickel with the thickness of 100-200 nm on the surface of a substrate at the speed of 0.01-0.1 nm/s while the substrate is heated at the temperature of 100-500 DEG C, andthen metal iridium is deposited at the speed of 0.01-0.5 nm/s; after the thickness of iridium reaches 15-40 nm, the temperature of the heated substrate is increased to 700-1000 DEG C, meanwhile, thedeposition speed is increased to 0.5-1 nm/s, and finally, an iridium thin layer with the total thickness of 150-300 nm is deposited; then a plasma chemical vapor deposition technology is adopted to pre-deposit a 4-10 nm amorphous carbon layer after the iridium surface is cleaned by hydrogen plasma so as to promote the enrichment of carbon atoms on the sub-surface of the iridium thin layer; and finally, after the substrate is subjected to pure hydrogen plasma etching for 6-15 s, the negative bias voltage and the methane flux are regulated to achieve bias voltage in-situ nucleation of the large-size single crystal diamond on the iridium surface and subsequent non-bias voltage epitaxial growth.

A liquid crystal device includes an element substrate, a counter substrate, a liquid crystal disposed between the substrates, a sealing material disposed in the spacing between the element substrate and the counter substrate and sealing the liquid crystal, a gas barrier layer disposed outside of the sealing material to cover the outside of the spacing and having a portion located in the spacing, and an gap region defined in at least a portion of the space between the sealing material and the gas barrier layer.

A cable connection structure includes a multi-core coaxial cable connected to a board. The multi-core coaxial cable includes a plurality of parallel-arranged coaxial cables each including a center conductor and an inner insulator, an outer conductor and an outer insulator sequentially formed on an outer periphery of the center conductor. The board includes a signal electrode connected to the center conductor and a ground electrode connected to the outer conductor. The cable connection structure further includes a positioning member lying between the signal electrode and the ground electrode for positioning the center conductor while the inner insulator is attached to the positioning member.