48results about How to "Increased local pressure" patented technology

Microcatheter for delivering a substance (e.g., infusion agent including embolization material and/or contrast enhancing material) in a small blood vessel towards a target bodily part. Includes a single lumen surrounded by tubular wall having outer diameter and opened at both ends; tubular wall proximal portion is connectable to a pressure source and reservoir containing infusion agent, and tubular wall distal portion ends with a tip; the tubular wall distal portion includes an infusion agent flow disruption section configured to disrupt passage therethrough of incoming retrograded flow of infusion agent, during continuous delivery of infusion suspension from the reservoir to the tip. Disclosed are methods using the microcatheter for performing local embolization in a small blood vessel feeding a (for example, cancerous) target bodily part, and for delivering infusion agent in a small blood vessel towards such target bodily part. Also disclosed are devices and methods for filtering non-target infusion agent.

The invention belongs to the field of construction engineering, and relates to a three-dimensional continuous frame type reinforced concrete structure retaining wall. The three-dimensional continuous frame type reinforced concrete structure retaining wall comprises piles which are fixedly connected through a ground beam. Columns are fixedly connected to a base plate, the columns are in rigid connection through girders so that a frame can be formed, and a shingle is arranged on the outer vertical face of the frame. The three-dimensional continuous frame type reinforced concrete structure retaining wall is simple in structure, the frame type structure is adopted, a frame body is rooted into a stable foundation supporting layer, the lateral pressure of a side slope soil layer is dispersed through the girders and the columns, the overlarge local pressure of a wall body can be avoided, anti-sliding capacity, shear capacity and bearing capacity are enhanced, the stability and the durability of the retaining wall are guaranteed, the potential risks of engineering can be greatly reduced, and the three-dimensional continuous frame type reinforced concrete structure retaining wall is suitable for enclosing and retaining side slope soil mass in loose sandy soil, recent fill and soil piling and filling areas which can not be closely grained easily.

A high strength engineered reactive composite that includes a reactive core. These reactive composites are useful for oil and gas completions and well stimulation processes, enhanced oil and gas recovery operations, as well as in defensive and mining applications requiring high energy density and good mechanical properties.

A compliant pressure roller (10) for creating uniform pressure at a nip comprises a stationary inner core (12). A plurality of shoes (14) is pivotally mounted to the stationary inner core. Dividers (16) create a plurality of annular chambers (18) wherein each of the shoes occupies one of the chambers. A non-Newtonian fluid (70) fills each of the chambers. A plurality of actuators is connected to at least one of the shoes. A thin, rotatable shell surrounds the plurality of chambers, shoes, and stationary inner core.

The invention relates to an injection valve (1), which is used in particular as an injector for fuel injection systems or exhaust gas aftertreatment systems, comprising a shock wave actuator (4), a valve closing body (8) that interacts with a valve seat surface (7) to form a sealing seat (9), and a shock wave amplification channel (22). The shock wave amplification channel (22) is used to conduct shock waves (27) generated by the shock wave actuator (4) to the sealing seat (9) and to amplify said shock waves (27).

The invention relates to a multielement zinc-aluminum alloy capable of improving comprehensive mechanical property, belonging to the technical field of zinc-aluminum alloy preparation. The multielement zinc-aluminum alloy is characterized in that the multielement zinc-aluminum alloy is prepared from the following raw materials: industrial aluminum ingot NO.A00, zinc ingot NO.0, electrolytic copper, composite modifier and pure magnesium, wherein the composite modifier contains 20-30% of Ni, 15-25% of Ti, 5-15% of Mn, 5-15% of Cr, 5-10% of Si, 5-10% of Ce, 5-10% of La, 1-6% of Y, 1-6% of Nb, 1-6% of V and the balance of aluminum; the multielement zinc-aluminum alloy is smelted in a medium-frequency induction melting furnace after weighing 27-29% of Al, 2-2.5% of Cu (added in the form of aluminum-copper intermediamidstfrequencye alloy containing 50% of copper ), 0-1.2% of composite modifier, 0.01-0.02% of Mg and the balance of Zn based on percentage by weight. A round-rod-shaped blank iscasted by a common metal type and metal type vibrational casting method, and then processed to a national standard test rod to be subjected to mechanical property testing.

In a method for the removal of deposits from the inner walls of industrial furnaces and bunkers or for the destruction of material accumulations by shelling with an industrial cannon, the shells include an explosive charge and an impact detonator and are driven out of the cannon by compressed air with a controllable travel speed.

The invention relates to a carbon fiber butt-joint terminal forming processing method. According to the method, a low-carbon fiber butt-joint terminal forming processing device is adopted, and the carbon fiber butt-joint terminal forming processing device comprises a mounting bottom plate, supporting legs, a supporting C-shaped frame, a guide frame, a guide rotating shaft, a conveying mechanism, a positioning mechanism and a punching mechanism. In the forming machining process of carbon fiber butt-joint terminals, fixed-distance continuous conveying operation is difficult to conduct on the carbon fiber butt-joint terminals, the bent portions of the carbon fiber butt-joint terminals are difficult to compact and level through a bidirectional symmetrical extrusion effect in a conveying process, multi-hole-site synchronous punching operation is difficult to conduct, the working efficiency of punching operation in unit time is difficult to improve, the inner walls of holes are difficult to polish synchronously in the punching operation process, burrs and residues remaining on the inner walls of the holes are difficult to remove, and falling materials are difficult to push out automatically after punching is completed. With the method of the invention adopted, the above problems can be solved.

The present invention relates to a novel hydrophilic-lipophilic gel membrane and a preparation method thereof; the dual hydrophilic gel is prepared from a styrene-isoprene-styrene segmented copolymer as a framework material, and also comprises oil and an organic fibrinolytic agent which have the good compatibility with the copolymer, as well as an anti-oxygen, and a hydrophilic/water-absorbing assistant. The membrane has the big characteristic of being capable of being used as a drug carrier under a condition that a surface active agent is not added, a water-soluble drug can be added, a lipophilic drug also can be added, the universality as the drug carrier is expanded, a defect that only the water-soluble drug can be added into a conventional hydrophilic gel, and only the lipophilic drug can be added into a conventional lipophilic gel is solved, each functional component can be kept in a dissolved state and can not be prone to absorb, and a dose-effect ratio relationship (have to meet) of drug components can be met; the novel hydrophilic-lipophilic gel membrane can enhance the transdermal action of the drug components to enable the drug components to fast penetrate through the skins within a short time to be absorbed.

The invention proposes an In-situ Sensor (1) for being implanted within tissue of a mammal (P) comprising •an energy harvesting portion (RX), •a communication portion (TX), •a pressure sensor (S_P) for measuring interstitial pressure of surrounding tissue when located within tissue, •a further sensor (S_F), whereby the further sensor is selected from a group comprising pH sensor, lactate sensor, impedance sensor, radiation sensor, temperature sensor, sensor for bioelectrical potentials, •whereby said further sensor (S_F), said pressure sensor (S_P) as well as the communication portion (TX) are powered by the energy harvesting portion (RX), •whereby information indicative of the measurement provided by the pressure sensor (S_P) and data indicative of the measurement provided by said further sensor (S_F) is communicated via said communication portion (TX) towards an extracorporeal receiving entity (ECE), •whereby said communication portion (TX) and/or said pressure sensor (S_P) and/or said further sensor (S_F) are adaptable such that they consume less energy in case storage of energy by the energy harvesting portion (RX) drops below a certain threshold.

A device and method for processing a substrate, wherein a flexible force absorbing means is provide in at least a part of a tool plan and/or a reaction plan, so as to locally absorbing the forces applied by the planes. The flexible force absorbing mean having spring-like properties such that it is adapted to be elastically deformed when the tool plan and the reaction plan are pressed against each other.

The invention relates to a capillary steam-doped super-cavitation jet noise suppression device. According to the device, refrigerant gas in the middle of an evaporator is introduced into an outlet ofa capillary tube through a bypass capillary tube, so that steam doping is performed on a refrigerant which comes out of the capillary tube and enters the evaporator, the local pressure of a steam doping area is increased, the cavitation number is effectively reduced, the pressure during cavitation collapse is remarkably reduced, the super-cavitation phenomenon is formed, and cavitation erosion andcavitation noise is greatly reduced; and the mixed refrigerant flows into the evaporator to complete circulation. Compared with a traditional silencer, the noise suppression device has the advantagesof being simple in structure, convenient to machine and install, low in later maintenance cost and the like; and the noise suppression device is very wide in application, not only is suitable for common refrigeration devices such as refrigerators and air conditioners, but also can be adopted for refrigeration systems in the fields of machinery, metallurgy, petroleum, chemical industry, food preservation, artificial environment, biological pharmacy and the like.

The invention relates to the technical field of injection molding equipment, and discloses an injection molding machine for machining of plastic products. The injection molding machine comprises a stock bin, a screw, a screw head, a thrust ring and a check ring. The thrust ring and the screw head are both in threaded connection with the screw, and the check ring is located between the thrust ringand the screw head. According to the injection molding machine for machining of the plastic products, in a low-temperature state, a spring piece can deform into a conical threaded groove with which the screw head is coated, the washing effect of a washing medium on the inner walls of the screw head and the stock bin is enhanced, impurities and scorching melt on the inner walls can be scraped off,then, under the effect of the elasticity of the spring piece, the check ring can move to the thrust ring by itself, the flow path of the melt is reduced, pre-check is achieved, at the moment when a hydraulic device is started, the contact pressure of the thrust ring and the check ring is increased, complete check can be achieved, the elasticity of the spring piece can compensate for abrasion generated by relative rotation between the screw head and the check ring, and the service life of the check ring can be effectively prolonged.

A hydrodynamic component may be used as a hydrofoil, a propeller blade, or the like. In the water flow, less pressure is generated on the second surface (94) of the component than on the first surface (96). Near the trailing edge of the first surface is provided a protrusion forming an adjustable spoiler (98). The raised surface forms an included angle less than or equal to 90° with the upstream direction. At this point the flow can turn back on itself, increasing the local pressure on the first surface. A second protrusion may be provided at the leading edge of the second surface (94) to facilitate flow separation at that location. Air is provided at each protrusion to allow natural ventilation when the water flow pressure is below atmospheric pressure.

The invention relates to the technical field of power equipment, and discloses a distribution transformer for a communication power system, which comprises a transformer box. One side of the upper surface of the transformer box is fixedly provided with an oil conservator, the middle part of the upper surface of the transformer box is fixedly sleeved with a sleeve, and the middle part of the inner cavity of the transformer box is fixedly provided with an iron core. According to the distribution transformer for the communication power system, the air bag is installed at the position of the flow spreading plate, so that the air bag absorbs heat generated by the coil to expand, local pressure of cooling oil is increased, flowing of cooling liquid is improved, meanwhile, the air bag expands to generate counter-acting force on the flow spreading plate, the flow spreading ring is pushed to rotate, and the air bag rotates; cooling oil which is cooled and reinjected can firstly contact with the air bag at the bottom of the flow spreading ring for heat exchange, so that the air bag is cooled, contracted and rotated to the vicinity of the coil to expand and pressurize again, the flowing speed of the cooling oil is increased, the heat exchange temperature of the cooling oil is low, the cooling oil can be quickly cooled in the heat dissipation pipe, and the temperature of the transformer box is low.

The invention relates to a vane-type pump (10) having a housing (12), having a displaceable stator (16), and having a rotor (18) that is rotatable within the stator (16), wherein the stator (16) is displaceable in the housing (12) in a direction perpendicular to a rotary axle (22) of the rotor (18) and, in the process, is guided in a fluid-tight manner in the housing (12) at at least one point. According to invention, a contact region (56) is formed between the stator (16) and the housing (12), wherein the stator (16), in one end position, is loaded against a contact section (60) of the housing (12), and wherein the contact region (56) is designed, and/or the contact section (60) arranged is relative to the stator (16), such that, as a result, a force is generated that acts on the stator (16) transversely to the displacement direction (20) and/or an additional torque is generated that acts on the stator (16) around the rotary axle (22).

The invention relates to a calender (1) for smoothing a paper web (2), in particular made of paper capable of gravure printing, comprising at least one roller stack, each roller stack comprising an upper and a lower end roller (4.1, 4.2) and intermediate rollers (5.1, 5.2, 5.3, 5.4), wherein one of the two end rollers (4.1) bounds a first working gap (3) of the roller stack depending on the guiding of the paper web (2), and the rollers (4.1, 4.2, 5.1, 5.2, 5.3, 5.4) are hard rollers (4.1, 5.2, 5.4) and soft rollers (5.1, 5.3, 4.2) in order to form loadable working gaps in the form of soft nips, wherein the end roller (4.1) bounding the first working gap (3) is a hard, heatable roller, the diameter of which is greater than the diameter of a hard, heatable intermediate roller (5.2, 5.4) and the outer wall (9) of which forms one of two contact surfaces (9, 10) of a web treatment gap (8); arranged upstream of the first working gap (3), and the other contact surface is formed by a belt (14) circulating on guide rollers (11, 12, 13).

The invention discloses an elevator framework and corridor structure. The structure comprises an elevator framework, a installation plate, a corridor bottom frame, a corridor body and a connecting part; the elevator framework comprises longitudinal H-shaped steel and transverse H-shaped steel; the installation plate comprises a wing plate installation plate and a web plate installation plate, wherein the wing plate installation plate is vertically connected to the outer side surface of a longitudinal wing plate, a first installation hole is formed in the position, corresponding to a web plate through hole, of the wing plate installation plate, the wing plate installation plate is connected to a transverse web plate through bolts, the web plate installation plate is vertically connected to a longitudinal web plate, a second installation hole corresponding to the web plate through hole is formed in the web installation plate, and the web plate installation plate is connected to the transverse web plate through bolts; the corridor bottom frame comprises a rectangular frame body, wherein the rectangular frame body comprises a right side plate, a front side plate, a left side plate and a rear side plate which are sequentially connected in an end-to-end mode to form a rectangle; the corridor body is fixedly connected to the rectangular frame; and the connecting part is used for being connected to the corridor bottom frame and the elevator framework. The elevator framework and corridor structure is reliable in connection, high in precision and short in installation period.