239results about How to "The equipment is easy to operate" patented technology

A perfusion catheter includes at least one perfusion channel and at least two dilation units disposed at a distance from each other at the distal catheter region in the longitudinal extension of the catheter. Both of the at least two dilation units are projected through by the perfusion catheter and form, in an inflated state, an at least practically fluid-tight occlusion with the aortic wall. At least the dilation unit disposed on the proximal side has at least one passage through which an auxiliary catheter can be introduced in a fluid-tight manner. The perfusion catheter may have a working channel with an outlet opening in the region between the two dilation units and through which at least one auxiliary catheter can be introduced for aortic valve ablation.

An improved transistor structure that decreases source / drain (S / D) resistance without increasing gate-to-S / D capacitance, thereby increasing device operation. S / D structures are formed into recesses formed on a semiconductor wafer through a semiconductor layer and a first layer of a buried insulator having at least two layers. A body is formed from the semiconductor layer situated between the recesses, and the body comprises a top body surface and a bottom body surface that define a body thickness. Top portions of the S / D structures are within and abut the body thickness. An improved method for forming the improved transistor structure is also described and comprises: forming recesses through a semiconductor layer and a first layer of a buried insulator so that a body is situated between the recesses; and forming S / D structures into the recesses so that top portions of the S / D structures are within and abut a body thickness.

The invention provides an inorganic ion doped carbon nitride photocatalyst and a preparation method thereof. The inorganic ion doped carbon nitride photocatalyst has a molecular formula shown in a formula (I). The preparation method comprises the following steps of: sufficiently mixing carbon and nitrogen sources and inorganic salt in a water solution, then drying and calcining to obtain the inorganic ion doped carbon nitride photocatalyst which has the molecular formula shown in the formula (I). According to the photocatalyst, inorganic ions enter a crystal lattice or an interlayer of C3N4, and visible-light catalytic activity of the C3N4 photocatalyst provided by the invention is greatly enhanced through the doping of the inorganic ions. Experiments indicate that the visible-light catalytic activity of the inorganic ion doped C3N4 photocatalyst with a two-dimensional structure is 1.5-3 times higher than that of a photocatalyst without C3N4 doped. Besides, the preparation method provided by the invention is moderate in condition, easy to operate and favorable to large-scale production.

Disclosed is a lateral flow assay device to test for the presence and / or amount of a nucleic acid sequence of interest in a sample, the lateral flow device comprising: (a) a sample receiving zone for contacting the device with a sample to be tested; (b) an extraction zone (8) for extraction of nucleic acid from the sample; (c) a nucleic acid amplification zone (18) in liquid communication with the sample receiving zone; and (d) a detection zone (20) for detecting the products, directly or indirectly, of a nucleic acid amplification reaction performed in the nucleic acid amplification zone, said detection zone (20) being, or being locatable, in liquid communication with the amplification zone (18).

A plasma surgical device for reducing bleeding in live tissue by means of a gas plasma. The device comprises a plasma-generating system having an anode (1), a cathode (8) and a gas supply channel (17) for supplying gas to the plasma-generating system, the plasma-generating system comprising at least one electrode (3, 5), which is arranged between said cathode (8) said anode (1), and the plasma-generating system being enclosed by a housing (12) of an electrically conductive material, which is connected to the anode (1). The device is characterised in that said housing (12) forms said gas supply channel (17).

Load balancing of activities on physical disk storage devices is accomplished by monitoring reading and writing operations to blocks of contiguous storage locations on the physical disk storage devices. A list of exchangeable pairs of blocks is developed based on size and function. Statistics accumulated over an interval are then used to obtain access activity values for each block and each physical disk drive. A statistical analysis leads to a selection of one block pair. After testing to determine any adverse effect of making that change, the exchange is made to more evenly distribute the loading on individual physical disk storage devices.

The present invention is distinguished by a perfusion catheter being provided comprising at least one perfusion channel designed as a hollow channel and at least two dilation units disposed at a distance from each other at the distal catheter region in the longitudinal extension of the catheter, both the dilation units being projected through by the perfusion catheter and forming in an inflated state an at least practically fluid-tight occlusion with the aortic wall, of which the dilation units at least said dilation unit disposed on the proximal side is provided with at least one passage through which at least one auxiliary catheter can be introduced aortic valve ablation in a fluid-tight manner and / or the perfusion catheter is provided with a working channel which is provided with an outlet opening in the region between the two dilation units and through which at least one auxiliary catheter can be introduced for aortic valve ablation.

An integrated tracheal tube / suction ventilation and co-committal secretion removal device having first and second coaxially arranged conduits where the first interior conduit forms a lumen to deliver gas, and a circumferentially arranged second conduit lumen is structurally adapted to serve as an integral suction lumen for removal of both expiratory gases and secretions. The distal end outlets of both lumens terminate between the device's fixing member and its distal end. The two lumen outlets are arranged such that relative to each other and the device the first interior pipe conduit forming lumen's outlet is located at the distal end and the second pipe conduit lumen's outlet is located at or near the distal side of the fixing member. This selection of relative positioning facilitates optimal deliver of breathing gas to a user in conjunction with removal of expiratory gases and secretions. The device is sized for location of the fixing member to its distal end from a patient's carina to a patient's larynx.

The present invention relates to a medicament delivery device comprising a distal housing part (12); a proximal housing part (10) into which a multi-chamber medicament container (14) is arranged and wherein said proximal housing part is arranged to be movable in relation to said distal housing part for mixing at least two substances arranged inside said container; a plunger rod (32) arranged to act on a distal stopper (34) in said medicament container, wherein a relative movement of said housing parts (10, 12) towards each other forces said distal stopper against the plunger rod in a proximal direction for mixing at least two substances arranged inside said container; a drive force unit (58, 74, 76, 78) capable of forcing said plunger rod (32) in the proximal direction for subsequent delivery of medicament from said medicament container; an activation member (80) slidably arranged through said distal housing part and releasably connected to the drive force unit; wherein said device further comprises a guide shell (24) one-way rotatable arranged in said distal housing part, wherein said guide shell is provided with threads (22) arranged to cooperate with corresponding threads (20) on said proximal housing, and wherein said guide shell and said plunger rod are arranged with guide members such that they are rotationally locked but slidable in relation to each other.

Ahead-mounted display device includes: an image display unit including an image light generating unit that generates image light representing an image and a light guide unit that guides the image light to the eyes of a user, and allowing the user to visually recognize a virtual image in a state where the image display unit is mounted on the head of the user; a detecting unit that is disposed in the image display unit and detects at least one of an impact and displacement; and a control unit that generates a given command based on detection data detected in the detecting unit.

A portable multimedia device and a method of operating the same enables operation of a display device by direct manipulation of a bracket housing a display window of a portable communication device such as an MP3 player, a portable multimedia player, or a digital camera. The portable multimedia device includes: a display bracket housing the display window; a PCB bracket installed at a rear surface of the display bracket and is movable within a limited range in a thickness direction; a PCB fixed in the PCB bracket between the display bracket and the PCB bracket; and a plurality of tact switches installed around a periphery of the PCB capable of contacting the rear surface of the display bracket. Each of the tact switches controls one or more function of the portable multimedia device.

A modular electronic device where (predominantly) sealed modules are aligned and attached / connected in pre-determined sequences, forming a robust block-like structure with extendable function: Control and / or inter-module communication are implemented without direct electrical interconnect, by non-contact means such as (magnetic, inductive, light, infrared, radio frequency, sound, ultrasound, or other non-contact means). This device's inter-module power transfer may be with or without direct electrical contact, or devices may be internally powered. Power transfer through inductive / transformer action where one or more alignment pins are used as transformer core is one potential implementation. Modules may be fluid filled to facilitate cooling and / or crush resistance to high-pressure environments.

Load balancing of activities on physical disk storage devices is accomplished by monitoring reading and writing operations to blocks of contiguous storage locations on the physical disk storage devices. A list of exchangeable pairs of blocks is developed based on size and function. Statistics accumulated over an interval are then used to obtain access activity values for each block and each physical disk drive. These activities are represented as disk seek, latency and data transfer times. A statistical analysis leads to a selection of one block pair. After testing to determine any adverse effect of making that change, the exchange is made to more evenly distribute the loading on individual physical disk storage devices.

A method (100) of forming a transistor includes forming a gate structure (106, 108) over a semiconductor body and forming recesses (112) substantially aligned to the gate structure in the semiconductor body. Amorphous silicon regions are then formed (114) in the recesses. The amorphous silicon regions are re-crystallized. Sidewall spacers are formed (118) over lateral edges of the gate structure. The method continues by implanting source and drain regions in the semiconductor body (120) after forming the sidewall spacers. The re-crystallized silicon regions formed in the recesses reside close to the transistor channel and serve to facilitate improved carrier mobility in NMOS type transistor devices.

A pilot-type water discharging / stopping and flow regulating valve device capable of performing both the discharging / stopping of water and the regulation of flow by light operations, and capable of, once the flow is regulated, discharging the water at a pre-regulated specified flow in the next water discharge even if the water is stopped.The pilot type water discharging / stopping and flow regulating valve device has a main valve, a back pressure chamber, an introducing small hole, a pilot channel and a flow regulating mechanism. The flow of the main channel is regulated by advancing and retreating the main valve following the advance / retreat of a pilot valve. The valve device further has a water discharging / stopping switching mechanism that switches between the discharging and stopping of water by advancing and retreating the pilot valve between a water discharge position and a water stop position. Furthermore, the flow regulating mechanism is configured to maintain the flow regulating position of the pilot valve at a previously regulated flow regulating position when the water discharging / stopping switching mechanism causes the pilot valve to perform water discharging operation after causing the pilot valve to perform water stopping operation.

A first device participates in a wireless communications network having a transmission medium designated for exchanging wireless signals in a first format that is associated with the wireless communications network. A portion of the transmission medium is reserved for the transmission of signals in a second format, which may be incompatible with the first format. Accordingly, one or more signals of the second format are transmitted to a remote wireless communications device. These one or more signals of the second format facilitate the remote wireless communications device's participation in the wireless communications network. Accordingly, the remote wireless communications device may be awakened from a sleep state or a hibernation state.

A catheter assembly is disclosed comprising a catheter and a receptacle enclosing said catheter. The receptacle has a first part and a second part, which parts are foldable over each other. Further, at least one sticky adhesive area is arranged on the surface of one of the parts of the receptacle in such a way that the sticky adhesive area is covered by the other part when the receptacle is in a folded disposition, and exposed to the environment when the receptacle is in an unfolded disposition.

A tool and method for abutting an individual floor panel which is near an obstruction, such as a wall, to the assembled floor. The tool and method provide a rod having a flanged member at one end. The flanged member has a notch in its vertical flange which contacts the floorboard to be abutted, requiring a minimal amount of space between the obstruction and floorboard to be set. A sliding weight mounted on a rod can then be slid toward an impact surface resulting in a horizontal force being applied to the individual floorboard thereby abutting or setting that floorboard with respect to the assembled floor. An especially useful application for the device and method is in the installation of a tongue-in-groove laminate floor in which the individual floorboards have a tongue and groove connection on their ends.

Methods of operating dual bit memory devices including programming with a range of values are provided. The present invention employs a range of ramp source program pulses to iteratively perform a program operation that employs hot hole injection. The range is related to channel lengths of individual dual bit memory cells within the memory device. To program a bit of a particular dual bit memory cell, a negative gate program voltage is applied to its gate, a positive drain voltage is applied to its acting drain, and its substrate is connected to ground. Additionally, a ramp source voltage of the range of ramp source program pulses is concurrently applied to an acting source of the dual bit memory cell. A verification operation is then performed and the programming is repeated with a decremented ramp source voltage on verification failure.

An implantable medical device, such as a sensor for monitoring a selected internally detectable physiological parameter of a patient, is attached to a fixation member that is deployable within the patient to position and orient the sensor to enable it to perform its function. The fixation member may be configured to lie in a single plane when deployed or may be tubular in shape. The attachment of the housing and fixation member includes providing the fixation member with a linear attachment strut that is non-circular in cross section and providing the housing with external members that define an elongate channel, non-circular in cross section and receptive to the attachment strut. The attachment strut can be inserted transversely into the channel and the external member can be crimped over the strut to secure the housing and fixation member together.

The invention discloses a green and simple preparing method of alpha-FeOOH (goethite) and alpha-Fe2O3 (hematite) nanometer rod, which comprises the following steps: choosing bivalent soluble ferric saly and hydro peroxide as raw material; choosing simple hydrothermal reaction; selective-synthesizing alpha-FeOOH and alpha-Fe2O3 nanometer rod through controlling temperature; getting alpha-FeOOH nanometer rod under lower temperature; getting alpha-Fe2O3 nanometer rod under higher nanometer rod. This invention possesses simple operation, cheap raw material and wide prospect.

The invention discloses a pulse laser etching device used for a transparent electroconductive thin film and a control method of the pulse laser etching device. The pulse laer etching device comprises a vacuum platform used for adsorbing a film material, a laser and a galvanometer, a beam expander is arranged between the laser and the galvanometer, a CCD image sensor is arranged above the vacuum platform, an air blowing device is arranged on one side of the vacuum platform, and a dust collecting device is arranged on the other side of the vacuum platform. The high-frequency short-pulse laser is adopted as a laser source for laser etching, film material etching is completed through the small-breadth galvanometer, and generated dust is collected through an air blowing system and a dust collecting system, so that the defects of high cost, low efficiency, large processing limitation, serious pollution and the like in the prior art can be overcome, etching process can be simplified, and accuracy can be improved.

The invention discloses a simulated test device for seepage of underground water and a simulated test method; the test device comprises a cylindrical drum, a substrate water tank, a water supply tank and a control valve, wherein the substrate water tank is arranged at the bottom of the cylindrical drum and is communicated with the water supply tank through the control valve and the water supply pipe; the water supply tank is a lifting adjustable water tank; the substrate water tank is arranged on a support; a drainage valve is arranged at the bottom of the substrate water tank; and the test method comprises steps of sampling point selection, sample soil collection, sample soil pretreatment, cylindrical drum filling, soaking test on underground water, collection of polluted water sample, water sample analysis and calculation of polluted output quantity. The simulated test device of the invention is convenient for collecting water sample in a layering way, provides basic data such as water quality, water yield and the like for the research of underground water pollution law and achieves the purpose of simulating the state and law of the underground water pollution. The test method is simple and convenient; equipment is convenient to operate; and test cost is low. The invention is suitable for test environments that the temperature is 4-45 DEG C, and the constant pressure pH is 6.5-8.5.

An apparatus for toasting bread, includes a housing (2) with a slot (3) which leads into a toasting space (4). Heater elements (5) are arranged on both sides of this space which each cooperate with a reflector (7) for reflecting radiation in the direction of the toasting space. Grille elements (8) are located to center the bread in the toasting space. A bread support element (9) is provided for moving the bread up or down. The grille elements (8) and the support element (9) are moveable in a coordinated way. The grille elements (8) and / or the heater elements (5) are arranged on two pairs of arms (6) which are hinged (14) to a base part (1), while the support element (9) cooperates with a lever (19) which is also hinged (18) to the base part (1), the arms (6) and the lever (19) cooperating with openings (17) in a slide (10) which is movable in the base part (1).

The present invention relates to a preparation method for microbial polypeptide preparation with the use of lactic acid bacteria and bacillus subtilis, and which is characterized in that the high yield enzyme and high quantity production strains is selected and trough the integration of original microwave-induction and rays-induction, wherein the production process applies the liquid-alone culture and solid-composite culture, adds special product promoter into the medium, the content of soybean peptide is high, at the same time which is rich in metabolic products such as peptidoglycan, microbial antioxidants and enzymes. The present invention has the advantage of low production cost, faster cycle, and faster absorption for animal after breeding, high daily increasing in weight, immunity enhancing, and stress rising, which has obvious effect in breeding and is a safe and high efficient new feed additive.