1422results about How to "Control shape" patented technology

An ultrasonic surgical device for the coagulation of animal tissue having an ultrasonic applicator and a movable jaw with a jaw surface adjacent the distal portion of the ultrasonic applicator for movement toward the applicator to a closed position at a predefined clearance of between about 0.075 to about 1.9 millimeters from the applicator. The device may also include a mechanical cutting element that can be extended into the clearance to cut the tissue and means to vary the predefined clearance without removing the applicator from the patient. Tissue coagulating and cutting can be maximized and performed separately and can be easily monitored by the surgeon.

A prosthesis for transluminal implantation consists of a flexible tubular interbraided structure of metal or polymeric monofilaments, and polymeric multifilament yarns. The prosthesis can be elastically deformed to reduce its diameter through axial elongation. The monofilaments and multifilament yarns are arranged in axially spaced apart helices, concentric on a common central axis of the prosthesis. The monofilaments are selectively shaped before their interbraiding with the multifilament yarns, either by an age-hardening or other heat-setting stage, or a cold-working stage that controllably plastically deforms the strands. The shaped structural strands cooperate to impart to the prosthesis its nominal shape and resilience. The textile strands cooperate to provide a sheeting that occupies interstices between adjacent structural strands, to reduce permeability and thereby enhance the utility of the prosthesis as a vascular graft. An alternative embodiment prosthesis includes elastically and plastically deformable structural strands, selectively plastically deformed by cold-working then interbraided to form the prosthesis.

Disclosed is an expandable transluminal sheath, for introduction into the body while in a first, small cross-sectional area configuration, and subsequent expansion of at least a part of the distal end of the sheath to a second, enlarged cross-sectional configuration. The sheath is configured for use in the vascular system and has utility in the introduction and removal of implant delivery catheters. The access route is through the ventricular myocardium, more specifically at the left ventricular apex, into the aortic root. The distal end of the sheath is maintained in the first, low cross-sectional configuration during advancement to the arteries into the aorta. The distal end of the sheath is subsequently expanded using a radial dilatation device, which is removed prior to the introduction of implant delivery catheters. In an exemplary application, the sheath includes a supported proximal end, a supported distal end, and a collapsible center section. Certain configurations of the sheath are capable of being inserted in a first, small cross-sectional configuration, being expanded diametrically to a second, larger cross-sectional configuration, and then being reduced to a diametrically small size for removal.

A prosthesis for transluminal implantation consists of a flexible tubular three-dimensionally braided structure of metal or polymeric monofilaments, and polymeric multifilament yarns. The prosthesis can be elastically deformed to reduce its diameter through axial elongation. The monofilaments and multifilament yarns are arranged in axially spaced apart helices, concentric on a common central axis of the prosthesis. The monofilaments are selectively shaped before their interbraiding with the multifilament yarns, either by an age-hardening or other heat-setting stage, or a cold-working stage that controllably plastically deforms the strands. The shaped structural strands cooperate to impart to the prosthesis its nominal shape and resilience. The textile strands cooperate to provide one or more layers of sheeting that reduce permeability and thereby enhance the utility of the prosthesis as a vascular graft. An alternative embodiment prosthesis includes elastically and plastically deformable structural strands, selectively plastically deformed by cold working, then three-dimensionally braided to form the prosthesis.

To provide a method for forming an opening with high accuracy in an insulating film obtained by curing a prepreg including a reinforcing material in a step of exposing a terminal portion sealed with the insulating film, with the use of a means other than laser beam irradiation. A protrusion is formed using a conductor. An uncured prepreg including a reinforcing material is closely attached to the protrusion and the prepreg is cured, so that an insulating film including the reinforcing material is formed. A portion of a top surface of the insulating film protrudes due to the protrusion. The protruding portion is preferentially removed together with the reinforcing material to form an opening in the insulating film by grinding treatment or the like, so that an opening which exposes the protrusion is formed in the insulating film.

The present invention provides a flexible multilayer packaging film and packages formed therefrom wherein the films include a first film layer comprising a first biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and a surface-roughened portion, a second film layer comprising an adhesive, a third film layer comprising a barrier material, a fourth film layer comprising a second biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and at least one score-line; wherein the packages comprise a tear-initiation area and a directional tear zone.

The present invention includes a method of producing a crystalline metal oxide nanostructure. The method comprises providing a metal salt solution and providing a basic solution; placing a porous membrane between the metal salt solution and the basic solution, wherein metal cations of the metal salt solution and hydroxide ions of the basic solution react, thereby producing a crystalline metal oxide nanostructure.

Disclosed is an expandable transluminal sheath, for introduction into the body while in a first, small cross-sectional area configuration, and subsequent expansion of at least a part of the distal end of the sheath to a second, enlarged cross-sectional configuration. The sheath is configured for use in the vascular system and has utility in the introduction and removal of implant delivery catheters. The access route is through the ventricular myocardium, more specifically at the left ventricular apex, into the aortic root. The distal end of the sheath is maintained in the first, low cross-sectional configuration during advancement to the arteries into the aorta. The distal end of the sheath is subsequently expanded using a radial dilatation device, which is removed prior to the introduction of implant delivery catheters. In an exemplary application, the sheath includes a supported proximal end, a supported distal end, and a collapsible center section. Certain configurations of the sheath are capable of being inserted in a first, small cross-sectional configuration, being expanded diametrically to a second, larger cross-sectional configuration, and then being reduced to a diametrically small size for removal.

The invention provides a manufacturing method of a circular thin film transistor of which shape is more controlled than the conventional case, while simplifying the steps and reducing the manufacturing time and cost by forming a circular thin film transistor by a maskless process such as a droplet discharge method. In the invention, a circular thin film transistor having a circular electrode is formed by stacking concentric circular thin films over a substrate by a maskless process such as a droplet discharge method. Moreover, a circular thin film transistor having a circular semiconductor layer may be formed by stacking concentric circular thin films over a substrate by a maskless process such as a droplet discharge method.

The invention discloses a biological decomposable polymer nanometer fiber film material and preparing method and usage, which is characterized by the following: the material is made of several nanometer to several hundred nanometer fiber diameter nonwoven material, wherein the hyaluronic acid is more than 0 less than or equal to 100; other macromolecular material quantiy is more than 0 less than 100; the quantity of remedy medicine is 0-10 part. The invention possesses well biological compatity, biological decomposition and absorption property, which is applied in the medical tissue engineering rack material.

An object is to provide: a method for producing a dispersion solution of a metal nanoparticle, which enables to control the shape or particle size of the metal nanoparticle within a wide range; a dispersion solution of a metal nanoparticle, which has excellent dispersion stability; and a method for producing the dispersion solution. Another object is to provide: a dispersion solution of a metal nanoparticle, which has a volume resistivity of 2 to 6 x 10<-6> Omega cm which is a value useful for use as an electrically conductive material; and a method for producing the dispersion solution. Still another object is to provide a method for the synthesis of a metal nanoparticle, which can synthesize a metal nanoparticle from an insoluble metal salt without using no corrosive material and can produce a metal nanoparticle suitable as an electrically conductive material.

A rectal appliance with a tubular member defining a communication passage for body waste, and first and second inflatable chamber portions carried on the tubular member for forming internal and external seals with respect to the anus. One or both of the inflatable chamber portions have a partly flared shape. The second inflatable chamber portion has a low external profile, and a concave sealing surface. The inflatable chamber portions are defined at least partly by a common flexible membrane that is constrained near a middle region to define a narrow waist between the two inflatable chamber portions.

A combination of connector assembly and two printed circuit boards includes a first printed circuit board defining a guiding gap at one edge thereof and a second printed circuit board, a receptacle connector including a receptacle insulating housing and a plurality of receptacle terminals, a plug connector including a plug insulating housing and a plurality of plug terminals. The receptacle insulating housing defines a plurality of assisting channels penetrating through a bottom surface of the receptacle insulating housing in order to communicate with the guiding gap of the first printed circuit board. Each of the receptacle terminals has a pair of contact portions face-to-face stretching into the corresponding assisting channel. Each of the plug terminals has a contact arm stretching out of the plug insulating housing so as to pass through the guiding gap to be electrically clamped by the contact portions of the corresponding receptacle terminals.

The invention discloses a colorful optical filter base plate with fixed spacers and a manufacturing method thereof. The colorful optical filter comprises a transparent substrate, a colorful film layer, a latticed black matrix, a flat layer, a transparent electrode layer and a columnar spacer. Firstly, the well-known colorful optical filter base plate is coated with transparent photosensitive material and then exposed by a mask with preset patterns, after being treated by adopting micro-lithography, the transparent columnar or frustum-shaped spacers are directly formed on the colorful optical filter base plate; the central shafts of the spacers are perpendicular to the surface of the flat layer and corresponding to the intersection of gridlines of the black matrix. Since the spacers are directly formed on the colorful optical filter base plate and the height, distribution and density thereof are all preset and controllable, the liquid crystal thickness (CELL GAP) between LCD base plates can be kept uniform, thus avoiding arranging the spacers within a pixel to affect the porosity of LCD.

The invention relates to a graphene / phosphoric acid iron-lithium composite material with a 'sandwich' structure and a preparation method thereof. The structure characteristics of the graphene / phosphoric acid iron-lithium composite material are that: blocky particles are formed by a grapheme laminated sheet which is completely coated by a phosphoric acid iron-lithium shell; and the insides of the particles present a similar 'sandwich' structure overlapped by a plurality of layers of phosphoric acid iron-lithium and graphene one by one. The preparation method thereof adopts a 'two-step' method. The characteristic steps are as follows: a graphene / phosphoric acid iron precursor with a 'sandwich' structure is compounded by a liquid phase method during the first step; then lithium is embedded in the second step; lithium iodide liquid phase low temperature reaction is adopted for embedding the lithium; then the graphene / phosphoric acid iron-lithium composite material is obtained through high temperature calcination under reducing (inertia) atmospheres; moreover, the graphene / phosphoric acid iron-lithium composite material can also be formed by the embedding of the lithium through high temperature solid phase reaction. The graphene / phosphoric acid iron-lithium composite material prepared by the method has high capacity and good charging-discharging circulating performances, and is suitable to be used as an anode material of a lithium ion battery.

The electrode, the diaphragm and the battery of the present invention have ultrathin structure and various outer appearance. The present invention provides the method of preparing ultrathin electrodeand diaphragm for ultrathin primary battery, ultrathin primary battery, ultrathin electrode and diaphragm for ultrathin secondary battery, and ultrathin secondary battery on various substrate via printing with the solution containing active matter as ink, computer control and ink jetting printing technology. The position, shape and size of the printed electrode, diaphragm and battery may be controlled precisely.

The sheath is configured for use in the vascular system and has utility in the introduction and removal of implant delivery catheters. The access route is through the ventricular myocardium, more specifically at the left ventricular apex, into the aortic root. The distal end of the sheath is maintained in the first, low cross-sectional configuration during advancement to the arteries into the aorta. The distal end of the sheath is subsequently expanded using a radial dilatation device, which is removed prior to the introduction of implant delivery catheters. In an exemplary application, the sheath includes a supported proximal end, a supported distal end, and a collapsible center section. Certain configurations of the sheath are capable of being inserted in a first, small cross-sectional configuration, being expanded diametrically to a second, larger cross-sectional configuration, and then being reduced to a diametrically small size for removal.

An improved method enables preparation of articles for a variety of applications, including embossing or otherwise shaping to form a variety of articles. A plurality of thin, preferably resin-impregnated, flexible graphite sheets are arranged to form zones in a composite material having a graded density or other characteristic. Variation of properties between zones in the stock material formed is useful for achieving a desired set of properties in the formation of articles such as those useful in electrochemical fuel cells and double-layer capacitors.

The invention relates to a permanent ferrite magnetic arc and the manufacturing method thereof, belonging to a manufacturing field of a motor permanent ferrite. Weight proportions of main material components and additive components are as the following: main materials: 8.7 to 9.0 percent of strontium oxide; 86 to 87 percent of iron oxide red; additives: 0.6 to 1.0 percent of calcium carbonate; 0.6 to 1.0 percent of aluminum oxide; 0.4 to 0.8 percent of chrome oxide; 0.3 to 0.6 percent of boric acid; 0.3 to 0.5 percent of silicon oxide; 0.2 to 0.4 percent of cobalt oxide; 0.2 to 0.4 percent of lanthanum oxide and 0.1 to 0.3 percent of silicate fiber. The invention is provided with high surplus magnetic induction strength and high intrinsic coercivity so as to enhance a mechanical strength of the magnetic arc.

An improved method enables preparation of articles for a variety of applications, including embossing or otherwise shaping to form a variety of articles. A plurality of thin, preferably resin-impregnated, flexible graphite sheets are arranged to form zones in a composite material having a graded density or other characteristic. Variation of properties between zones in the stock material formed is useful for achieving a desired set of properties in the formation of articles such as those useful in electrochemical fuel cells and double-layer capacitors.

An ion source includes an arc chamber having an extraction aperture, and a plasma sheath modulator positioned in the arc chamber. The plasma sheath modulator is configured to control a shape of a boundary between a plasma and a plasma sheath proximate the extraction aperture, wherein the plasma sheath modulator includes a semiconductor. A well focused ion beam having a high current density can be generated by the ion source. A high current density ion beam can improve the throughput of an associated process. The emittance of the ion beam can also be controlled.

A novel BC fermentation technique for controlling 3D shape, thickness and architecture of the entangled cellulose nano-fibril network is presented. The resultant nano-cellulose based structures are useful as biomedical implants and devices, are useful for tissue engineering and regenerative medicine, and for health care products. More particularly, embodiments of the present invention relate to systems and methods for the production and control of 3-D architecture and morphology of nano-cellulose biomaterials produced by bacteria using any biofabrication process, including the novel 3-D Bioprinting processes disclosed. Representative processes according to the invention involve control of the rate of production of biomaterial by bacteria achieved by meticulous control of the addition of fermentation media using a microfluidic system. In exemplary embodiments, the bacteria gradually grew up along the printed alginate structure that had been placed into the culture, incorporating it. After culture, the printed alginate structure was successfully removed revealing porosity where the alginate had been placed. Porosity and interconnectivity of pores in the resultant 3-D architecture can be achieved by porogen introduction using, e.g., ink-jet printer technology.

The invention discloses a method for preparing calcium sulfate crystal whiskers from desulfurized gypsum under normal pressure. The method comprises the following steps: 1) pickling; 2) dissolving; 3) rotating crystal; and 4) crystallizing, after crystallizing, carrying out solid-liquid separation, washing filter cake with water, and drying to obtain calcium sulfate crystal whiskers. The method disclosed by the invention has the advantages that: the preparation process is simple and is easy to achieve, and the production efficiency is high; higher-purity and higher-whiteness calcium sulfate crystal whiskers are prepared by adopting a normal-pressure recrystallization method, controlling related process conditions and utilizing the characteristic that the dissolubility of main component calcium sulfate dihydrate of desulfurized gypsum in specific solution changes obviously along with the temperature; obtained calcium sulfate crystal whisker product has regular morphology, low agglomeration and good dispersity; and in addition, inorganic acid solution used for recrystallization can be recycled, and inorganic acid solution is not consumed in the reaction process, thereby creating better economic benefit, environmental benefit and social benefit, reducing the burden of coal-fired power plant and increasing enterprise benefits.

The invention discloses a piezoelectric-type flexible three-dimensional tactile sensing array and a preparation method of the same. The tactile sensing array is successively constituted of a PDMS superficial raised layer, an upper electrode layer, a PVDF piezoelectric thin film layer, a lower electrode layer and a PDMS flexible basal layer from top to bottom, wherein the upper and lower electrode layers are distributed in a patterned manner, the PVDF piezoelectric thin film layer is sandwiched in the middle to form a plurality of piezoelectric capacitances, and electric charges are generated by upper and lower electrodes of the piezoelectric capacitances under effects of force; the whole array is constituted of six three-dimensional tactile sensing units which are arranged in two lines and three rows, and a spatial resolution rate reaches 8 mm; and each three-dimensional tactile sensing unit comprises a quadrangular-frustum-shaped raised part and four piezoelectric capacitances, external three-dimensional contact force is transmitted by the quadrangular-frustum-shaped raised part to the four piezoelectric capacitances, and the external three-dimensional contact force is measured by generation of a charge combination of the four piezoelectric capacitances. The piezoelectric-type flexible three-dimensional tactile sensing array and the preparation method of the same disclosed by the invention are advantageous in that multi-dimensional force simultaneous measurement is realized, flexibility is applicable to hook face assembly and dynamic responses are good.

The invention provides a preparation method of a high-heat-conduction flexible graphene film. Oxidized graphene powder is frozen, dried and dispersed in a solvent, and an oxidized graphene dispersion liquid with the concentration being 0.1-10 mg / ml is obtained; the oxidized graphene dispersion liquid is added to a spraying device and sprayed on a substrate, the substrate is heated at the temperature of 50-150 DEG C for 0.5-5 h, and the oxidized graphene film is formed on the substrate after the dispersion liquid is evaporated; the oxidized graphene film is peeled off and rolled; hot-pressing carbonization and high-temperature graphitization are performed under the protection of a protective atmosphere, and the heat-conduction graphene film is obtained. With the adoption of the method, the high-heat-conduction flexible graphene film with the size and the thickness being controllable can be effectively prepared to meet requirements of different heat dissipation devices and can be applied to various wearable equipment, smart phones, smart televisions and LEDs on a large scale to improve the heat dissipation effect.

The invention relates to a preparation method of lithium iron silicate cathode material. In the method, ferric saline, Na2SiO3 and lye are added into a reactor in a flowing way; the pH value of the reaction system is controlled, so that the hysrolysis reaction between the ferric iron and the SiO3 can occur; the common deposit of iron and silicon is prepared by filtering and washing; the common deposit of iron and silicon, the lithium source compound, the oxalic acid solution and the carbon source compound are mixedto become pulp state; the Fe is reduced to be Fe through ball milling; the precursor material of lithium iron silicate can be prepared by drying; the precursor material is calcinated under the conditions with the protective atmosphere and at the low temperature to form the agglomerated acidic lithium-iron anode material which is composed of nanoparticles. The method has the strong process adaptability; the industrial production can be easily realized; and the product has higher density and excellent electrochemical properties.

Disclosed is an optical sheet for use in liquid crystal displays, which simultaneously functions to uniformly diffuse light emitted from a light guide plate and a diffusion plate and to increase brightness, decreases the loss of light, and enables the fabrication of thinner liquid crystal displays.

A thin-film magnetic head according to the present invention comprises: a substrate; at least one magnetic head element formed on the substrate; an overcoat multilayer composed of a plurality of overcoat layers, formed on the substrate so as to cover the at least one magnetic head element; and at least one heating element to be heated at least during operation of the at least one magnetic head element, the at least one heating element provided in the overcoat multilayer, and a coefficient of thermal expansion of an overcoat layer located farthest from the substrate in the overcoat multilayer being smaller than a coefficient of thermal expansion of an overcoat layer located closest to the substrate in the overcoat multilayer.

The present invention provides a wafer double-side polishing apparatus comprising at least a carrier plate having wafer holding holes; upper and lower turn tables to which polishing pads are attached; and a slurry supply means; with wafers held in the wafer holding holes, the carrier plate being moved between the upper and lower turn tables while supplying slurry, to simultaneously polish both front and back surfaces of wafers, wherein a PCD of upper turn table load supporting points that is a diameter of a circle joining load supporting points of the upper turn table coincides with a PCD of centers of the wafer holding holes on the carrier plate that is a diameter of a circle joining each center of the wafer holding holes on the carrier plate. Thereby, there can be provided a wafer double-side polishing apparatus and method in which it is possible to control wafer shape by deforming turn tables with excellent responsiveness, and to polish the wafers stably with high precision without deteriorating wafer shape.