1046results about How to "Flow fast" patented technology

Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of:

• • (a) placing a blood collection device over a region on the surface of the skin from which said sample is to be obtained,
  • (b) forming a seal between said blood collection device and said surface of the skin,
  • (c) creating a vacuum sufficient to result in said surface of the skin becoming stretched and engorged with blood,
  • (d) triggering a lancing assembly and causing a lancet to penetrate said skin,
  • (e) retracting said lancet,
  • (f) withdrawing blood toward and onto a fluid collector, and
  • (g) releasing the vacuum.

In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises:

• • (a) a housing having a sealable chamber located therein and a sealable opening in fluid communication with said sealable chamber,
  • (b) a power source,
  • (c) a vacuum pump operably connected to said power source, said vacuum pump in communication with said sealable chamber,
  • (d) a lancing assembly positioned within said housing, said lancing assembly capable of moving a lancet towards said sealable opening, and
  • (e) a fluid collector positioned in said sealable chamber, said fluid collector in fluid communication with said sealable opening.

The flow conditioner for a gas transport pipe comprises at least one perforated plate disposed essentially perpendicularly to the axis XX' of the pipe and comprising a central hole and sets of additional holes that are regularly distributed over at least three concentric rings centered on the axis of the pipe so as to define a perforated plate that is axially symmetrical. Within any one ring all of the circular holes are of the same diameter d1, d2, d3. On going away from the central hole and on passing from any one ring to an adjacent concentric ring, the diameter of the holes changes alternately in a reduction direction and in an increase direction. Each ring has a number of holes that is equal to or greater than six. The perforated plate is advantageously associated with a porous plate situated upstream from the perforated plate and parallel thereto.

In an exhaust gas pipe, a first fluid flows in a flow direction in the pipe, and a second fluid is injected inside the pipe by a nozzle, from an injection inlet arranged in the pipe wall, according to an injection direction. A mixing device fastened inside the pipe upstream from the injection inlet creates turbulence that helps the mixing of the fluids. The mixing device has a first portion located on the injection inlet side of the pipe and a second portion located opposite the injection inlet side of the pipe, the portions being designed so that the fluid velocity is higher downstream from the mixing device second portion than downstream from the mixing device first portion. An aqueous solution of urea can be injected inside an exhaust pipe of a diesel engine.

A beverage system for selectively delivering, in a same coffee extraction device, short coffee liquid extracts and long coffee liquid extracts comprising: cartridges containing ground coffee; a receiving device for receiving one cartridge at a time and pumping means or injecting water under pressure in the cartridge; means for opening the cartridge wherein these means comprises retaining means to retain the liquid under pressure in the cartridge and engaging means which engage the retaining means to open the cartridge and deliver the coffee liquid extract; wherein the system comprises at least a first cartridge adapted to deliver a short coffee liquid extract, wherein the system comprises at least a second cartridge which has substantially the same external configuration and shape as the first cartridge so as to be capable of being received in the same receiving device as the first cartridge and which is adapted to deliver a longer coffee liquid extract upon allowing a larger amount of water to flow there trough, wherein the second cartridge for the longer coffee liquid extract is configured so that water flows through it at a higher rate than in the first cartridge during extraction.

The invention provides a medical device having a thermister for temperature measurement, irrigation/aspiration ports for fluid exchange and application of therapeutic modalities, a pressure manometer for pressure measurement, and an external system for control of temperature, pressure, and flow rate. When applied to the eye and orbit, this device can be used in hypothermia or hyperthermia applications, the control of intraocular pressure (IOP), and the application of treatment modalities. Methods of using the device in treating patients suffering from central retinal artery occlusion, anterior optic nerve disease, pathology of the choroid and retina including the macula, inflammation of the eye including the vitreous and anterior segment, glaucoma, inflammation and/or infections of the anterior and/or posterior segment of the eye, treatment before/during/after surgery of the eye, and the application of treatment modalities through a semi-permeable membrane are described.

The present invention is directed to a semiconductor processing apparatus and a method for clamping a semiconductor substrate and controlling a heat transfer associated therewith. According to one aspect of the present invention, a multi-polar electrostatic chuck and associated method is disclosed which provides a controlled and uniform heat transfer coefficient across a surface thereof. The multi-polar electrostatic chuck comprises a semiconductor platform having a plurality of protrusions that define gaps therebetween, wherein a distance or depth of the gaps is uniform and associated with a mean free path of the cooling gas therein. The electrostatic chuck is permits a control of a backside pressure of a cooling gas within the plurality of gaps to thus control a heat transfer coefficient of the cooling gas. The plurality of protrusions further provide a uniform contact surface, wherein a contact conductivity between the plurality of protrusions and the substrate is controllable and significantly uniform across the substrate.

Disclosed is a hookah for electronic cigarette, which comprises a bottle body containing some water, a suction nozzle leading to the water surface and an electronic cigarette receiving chamber provided with an inner opening arranged under the water surface and an outer opening fitting the outer contour of an electronic cigarette. The electronic cigarette receiving chamber comprises an inner chamber for holding the electronic cigarette and an outer access connected to the inner chamber, the upper portion of said inner chamber being connected to the outer access via a through hole, said inner opening being an exit of said outer access and said outer opening being an entrance of said inner chamber. When using the hookah to smoke an electronic cigarette, the smoke will be filtered so that it tastes more pure and better. The present invention has a simple structure; it is easy to use and convenient to carry.

The invention relates to an upcast method for producing a high-purity bright copper rod. The method comprises the following steps of: drying smelting copper raw materials needed by smelting, mixing, adding the mixture into a smelting furnace, and covering firing charcoal with the thickness of between 100 and 150mm on starting molten copper until red copper is entirely molten, wherein molten copper constantly flows toward a heat preservation furnace under the action of fluid force; boiling the high-temperature molten copper and degassing before ingot guiding, adding prepared high-purity graphite carbon powder onto the liquid level of the molten red copper in the heat preservation furnace, and aerating high-purity nitrogen at the position which is 50 to 100mm lower than the liquid level of the heat preservation furnace; covering the firing charcoal after boiling and degassing, covering a furnace cover, performing draw casting operation, drawing a draw casting machine for draw casting bythe upcast method, cooling in a graphite crystallizer by the upcast method to obtain a qualified high-purity oxygen-free copper rod blank, and winding on a drawn cast ingot passive winding machine; and performing multi-pass rolling and fine-drawing on the high-purity oxygen-free high-brightness copper rod blank by an eight-rack rod cold rolling mill, and drawing the blank until the copper rod is obtained by a wire drawing machine, namely obtaining a finished product after the copper rod passes the inspection.

The invention provides a medical device having a thermister for temperature measurement, irrigation/aspiration ports for fluid exchange and application of therapeutic modalities, a pressure manometer for pressure measurement, and an external system for control of temperature, pressure, and flow rate. When applied to the eye, eyelid and orbit, this device can be used in hypothermia or hyperthermia applications, the control of intraocular pressure (IOP), and the application of treatment modalities. Methods of using the device in treating patients suffering from central retinal artery occlusion, anterior optic nerve disease, pathology of the choroid and retina including the macula, inflammation of the eye including the vitreous and anterior segment, glaucoma, inflammation and/or infections of the anterior and/or posterior segment of the eye, treatment before/during/after surgery of the eye, and the application of treatment modalities including iontophoresis through a semi-permeable membrane are described.

An electric power source system in which a momentary interruption of the electric power supply does not occur when the direction of voltage conversion is switched by a voltage conversion device that is capable of bidirectional voltage conversion. The electric power source system includes a bidirectional switching regulator that selectively switches between the voltage conversion in the step-up direction from a low-voltage system to a high-voltage system and the voltage conversion in the step-down direction from the high-voltage system to the low-voltage system, and a linear regulator, connected in parallel to the bidirectional switching regulator, that converts voltage in the step-down direction. The direction of current that flows via the bidirectional switching regulator switches from the step-up direction to the step-down direction after current flows in the step-down direction via the linear regulator.

The invention discloses a high-speed continuous photocuring type 3D printing device and a working method thereof. The 3D printing device comprises a machine case body which is divided into an upper cavity and a lower cavity by a middle partition board, wherein an image forming module is arranged in the lower cavity, a window box and an oxygen supply cooling module are arranged in the upper cavity and are combined to be fixedly mounted on the middle partition board, the oxygen supply cooling module is arranged right below the window box, and the image forming module I is arranged right below the window box; a printing platform is arranged right above the window box and is mounted on a Z-direction worktable; and the window box is connected with a raw material feeding unit. The 3D printing device is integrated with the advantages of a compound oxygen-rich film, oxygen supply cooling and liquid surface auxiliary pressurization of the window box, so that the low-cost and efficient continuous printing of large-sized products with arbitrary shapes is realized, the range of applicable materials is wide, the printed products are high in precision and quality and good in uniformity, and the process is stable and reliable. An industrial-grade solution is provided for the high-speed continuous photocuring type 3D printing.

The invention provides a multilayered structure absorbing core used for a disposable absorbing product and a manufacturing method thereof. The absorbing core is formed by pressing each layer; a latticed groove is formed in the surface of the absorbing core; the groove depth of the crossed points of the latticed groove is larger than the groove depth of the non-crossed points. A new synchronous staggered layer compaction process is adopted, namely, when the absorbing core is pressed at a circular truncated cone structure in a punctiform way, the absorbing core is not completely pressed by a linear netty trapezoid compaction mechanism with the height lower than that of the circular truncated cone structure, and the absorbing core is divided into a plurality of raised small spaces; under the condition of keeping the drainage function of a flow guide layer and a liquid storage layer, the shift of a polymer absorbent material in the absorbing core is completely limited, and the intensity of a core body is increased; through adjusting the structure and the manufacturing process of the core body, the liquid absorbing amount of the improved multilayered structure absorbing core is larger, the liquid absorbing speed is rapider, and the intensity is increased.

The invention relates to the technical field of keyboards, in particular to a self-cleaning keyboard. The keyboard comprises a keyboard body and keys; key holes are arranged in the keyboard body, and the keys are located on the key holes; an airbag pad is arranged on the keyboard body, and a plurality of through holes for the keys to be inserted in the key holes are correspondingly formed in the airbag pad; each key comprises an upper part for a finger to tap and a lower part capable of sliding up and down in each key hole; springs are arranged in the key holes; the airbag pad is located between the upper parts and the keyboard body; air discharging parts capable of discharging air during pressing of the airbag pad and an air feeding part capable of feeding the air during release of the airbag pad are arranged on the airbag pad; the air discharging parts are uniformly arranged in circumferential directions of the keys; a ventilation tube is arranged on a side surface of the airbag pad; an air inlet one-way valve is arranged on the ventilation tube; and a ventilation cover is connected to the ventilation tube. According to the scheme, dust around the keys can be cleaned when the keys are tapped; people can dismount the keys once conveniently; and a hand can be prevented from sweating.

A volumetric metering system for a seeding machine is provided with movable gates disposed downstream from the meter roller but before the product enters a distribution system to selectively stop the flow of product through sections of the metering system. By placing the shut-off gate after the meter but before product enters the distribution system, there will not be a delay in stoppage of product flow while the meter empties of product. Furthermore, by locating the gate before the distribution system, the metered product is not mixed with the air stream or with additional products, causing a need for product redirection into a pressurized tank or separation of multiple products.