417results about How to "Shape adjustable" patented technology

Systems and devices for dynamically stabilizing the spine are provided. The systems include a superior component for attachment to a superior vertebra of a spinal motion segment and an inferior component for attachment to an inferior vertebral of a spinal motion segment. The interconnection between the two components enables the spinal motion segment to move in a manner that mimics the natural motion of the spinal motion segment. Methods are also provided for stabilizing the spine and for implanting the subject systems.

The present invention belongs to the field of hollow material preparing technology, and is especially the preparation process of hollow ball of inorganic matter, metal, organic matter and composite structure with hollow polymer ball as template. The present invention prepares composite hollow ball through combining hollow polymer ball template with sol-gel, deposition reaction, oxidation-reduction process and through forced interface process or surface deposition process; and obtain hollow ball of inorganic matter, metal and organic matter through high temperature sintering or selective solvent extraction to eliminate template polymer. The control of hollow ball structure and size and the compounding of several kinds of matters may be realized through controlling reactant activity, material feeding mode, reactant concentration and circulating reaction process. The hollow ball has excellent dispersivity, high strength and size stability. The present invention also relates to the application of these hollow structure materials.

The invention belongs to the field of materials with a hollow structure, in particular to a method for preparing double-layer hollow spheres and hollow spheres with multi-layer compound structures by using a template method. The invention prepares the compound hollow sphere by taking a polymer hollow sphere as a template and combining sol-gel, settlement reaction and redox process through the method of forcing interface or surface settlement, removes the template polymer through high sintering or selective extraction of a solvent to obtain the hollow spheres of minerals, metals and organic matters. The structure and the size of the hollow sphere can be controlled through controlling the reagent activity, the feeding mode, the reagent concentration and a circulation reaction method; besides, compounding of various matters can be realized; the hollow sphere of the invention not only has good dispersing performance, but also has excellent strength and size stability. The invention relates to the application of the materials with a hollow structure.

The invention belongs to the field of materials with a hollow structure, in particular to a method for preparing hollow spheres of minerals, metals and organic matters and hollow spheres with compound structures as well as hollow spheres with photic, electrical, magnetic and catalytic properties and hollow spheres with compound structures thereof by taking a polymer hollow sphere as a template. The invention prepares the hollow spheres with compound structures by taking the polymer hollow sphere as the template and combining sol-gel, settlement reaction and redox process through the method of forcing interface or surface settlement, removes the template polymer through high sintering or selective extraction of a solvent to obtain the hollow spheres of minerals, metals and organic matters. The structure and the size of the hollow sphere can be controlled through controlling the reagent activity, the feeding mode, the reagent concentration and a circulation reaction method; besides, compounding of various matters can be realized; the hollow sphere of the invention not only has good dispersing performance, but also has excellent strength and size stability. The invention relates to the application of the materials with a hollow structure.

The invention discloses graphene aerogel and a preparation method thereof. The method comprises the following steps: (1) uniformly mixing graphene oxide dispersion liquid with an amine water-soluble compound to obtain graphene oxide mixed liquid, wherein the amine water-soluble compound is selected from one or more of diethylamine, ethidene diamine, propane diamine, butane diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, allylamine polymer and N,N'-bis(2-aminoethyl)-1,3-propane diamine; (2) irradiating the graphene oxide mixed liquid by high-energy rays under the anaerobic condition to obtain amino-modified graphene aerogel; (3) performing freeze-drying or supercritical CO2 drying to obtain the graphene aerogel. The graphene aerogel adopts a porous and macroporous structure, is relatively uniform in structure, and can be used for adsorbing an organic solvent; moreover, the preparation method is simple and environment-friendly.

Provided is a lighting unit for a vehicle capable of implementing surface light emission from a single light emitting surface. The light unit can function to implement a light emitting region in which at least two light colors are displayed or different light colors are implemented, or to locally emitting light.

The invention provides a method of depositing a metal organic framework material by an oxygen auxiliary cathode. The method comprises the following steps: (1) preparing a reaction precursor solution which is composed of a 5-50mM metal source, a 10-250mM organic ligand and an organic solvent; and (2) carrying out electrochemical deposition on the surface of a conducting substrate of the cathode toobtain the material. The method provided by the invention does not corrode the deposited electrode, the selecting range of the conducting substrate is wide, the prepared MOF material is regulatable inshape, dimension and thickness in nanoscale, pure, free of adding a supporting electrolyte and low in cost, and can be synthesized in one step. The metal organic framework is simple in method and operation, and industrial production is conveniently achieved.

An intervertebral implant for mutual situating of adjacent vertebrae includes a cover and a driving mechanism mounted in the cover. The cover presents a manipulative hole and a seat. The driving mechanism is located in the seat and includes a rotational element with anchoring to engage a vertebra. The implant includes a connecting element located within the diameter of the manipulative hole and operable to be engaged by a driving tool.

The invention provides a head mount display support and a head mount display. The head mount display support comprises a support main body, a rotary knob shaft, an adjustment gear and a self-locking mechanism, wherein the support main body comprises two telescopic arms; the two telescopic arms are arranged in an overlapped mode; the adjustment gear is fixedly arranged on the rotary knob shaft in asleeving mode; when the rotary knob shaft is pressed, the adjustment gear is driven by the rotary knob shaft to move to the overlapped position of the two telescopic arms to enable the two telescopicarms to move to be close to or to be far from each other; the self-locking mechanism comprises a rear shell, an elastic piece and a locking piece; and the self-locking structure is used for locking the relative positions of the two telescopic arms. The head mount display support and the head mount display can be suitable for various wearing head types, the shape of the head mount display supportcan be conveniently adjusted, and the adjusted head mount display support can be conveniently locked.

The invention discloses a preparation method of a Pb oxide nano powder for recovery and manufacture of a lead acid battery. The method comprises the steps of: (1) reacting lead salt or waste lead acid battery lead paste with an organic or inorganic compound capable of complexing with Pb atom / ion, so as to realize desulphurization or reloading of acid radical; and (2) carrying out treatment processes of filtering, drying for removing water and heating for decomposition, so as to obtain the Pb oxide nano powder. The method of the invention realizes an environment-friendly and energy-efficient recovery and production process with substantially reduced production cost; meanwhile, the prepared Pb oxide powder is beneficial for enhancement of product performance.

The invention relates to a intraocular lens system having a flexible anterior lens accommodation material behind the lens. The accommodation material may comprise of one or more macromers, which, when polymerized, adjust the properties of the accommodation material. The anterior lens is flexible such that the curvature of the lens changes during accommodation. The anterior lens may be used alone or in combination with a posterior lens.

A method for manufacturing core-shell nanostructure is provided. A nanoparticle containing a metal is provided. The nanoparticle is capable of transforming the light energy to the thermal energy. The nanoparticle is distributed onto a first thermosetting material precursor. A second thermosetting material precursor is coated on the first thermosetting material precursor to cover the nanoparticle. The nanoparticle is irradiated by a light source to produce the thermal energy such that the first thermosetting material precursor and the second thermosetting material precursor around the nanoparticle are cured to form a material layer on the nanoparticle. The uncured portion of the first thermosetting material precursor and the uncured portion of the second thermosetting material precursor are removed.

The invention discloses a method for preparing starfruit-shaped SnO2/C micro-nano particles through electrostatic spinning and a prepared product. The method comprises steps as follows: PVP (polyvinyl pyrrolidone), TBAB (tetrabutylammonium bromide), liquid paraffin and tin salt are dissolved in a mixed solvent of ethanol and DMF (dimethyl formamide) and stirred, and a transparent solution is obtained; the transparent solution is treated with an electrostatic spinning method, precursor fibers are obtained and calcined under the condition of inert gas protection, and the starfruit-shaped SnO2/C micro-nano particles are obtained. The starfruit-shaped SnO2/C micro-nano particles with adjustable sizes are prepared with the combination of a simple electrostatic spinning technology and the heat treatment process under the condition of inert gas protection, the technological process is simple, the synthesis condition is easy to control, the operability is high, the product morphology is unique, the controllability is high, the repeatability is good, the particle size distribution range is narrow, the particle sizes are adjustable, and the method is suitable for industrial production. The obtained starfruit-shaped SnO2/C micro-nano particles have potential application value in the aspects of a supercapacitor, a lithium ion battery and the like.

The invention relates to a single-incision laparoscopic surgery system based on flexible arms. The single-incision laparoscopic surgery system comprises flexible surgery tools, an imaging tool, a catheter and a driving body. Each flexible surgery tool comprises the first flexible arm, a surgery performer and a first driving transmission unit. The imaging tool comprises the second flexible arm, an imaging lighting module and a second driving transmission unit. The catheter comprises a catheter body and a multi-cavity catheter main body. The driving body comprises a framework linked with the catheter, and a plurality of driving modules connected to the framework in a fastened mode and linked with the first driving transmission units and the second driving transmission unit. The overall feed degrees of freedom, the overall rotation degrees of freedom and the turn degrees of freedom of the first flexible arms are achieved through the driving modules via the first driving transmission units linked with the driving modules, and the overall feed degrees of freedom and the turn degrees of freedom of the second flexible arm are achieved through the driving modules via the second driving transmission unit linked with the driving modules. According to the single-incision laparoscopic surgery system, the flexible surgery tools and the imaging tool can enter the human body through the same multi-cavity catheter main body to perform surgery.

The invention provides a multi-pot melt growth technique for growing sapphire crystals, comprising: (1) pretreating aluminum oxide raw material; (2) placing the pretreated aluminum oxide blocks and the oriented seed crystals into pots and moving into high temperature descending furnace, sealing the whole system and power-on to raise temperature, starting mechanical pump and diffusion pump in turn, vacuumizing to 10-3-10-4Pa, and when the furnace temperature up to 1500-1800deg.C, charging inert gas and continuing raising temperature to the set temperature (2100-2250deg.C); (3) when the furnace temperature up to the set temperature, preserving heat for 4-8 hours, regulating hearth temperature and pot positions to smelt raw material and seed crystal top to implement inoculation growth and setting solid-liquid interface temperature gradient at 10-50deg.C/cm and controlling pot descending rate at 0.1-3.0mm/h; and (4) after the crystal growth ends, making in-situ annealing treatment. And the process has features of raw material pretreatment, special temperature field design, multi-pot technique, in-situ annealing treatment, etc, and advantages of stable temperature field, adjustable temperature gradient, operating convenience, low average energy consumption, high yielding by one furnace, and beneficial to industrialized production.