1900results about How to "Avoid cuts" patented technology

A dissecting tip is provided for use with a surgical stapler or instrument. In one embodiment, the dissecting tip is secured to the end effector of the surgical instrument, e.g., to the cartridge assembly. The dissecting tip extends distally from the end effector and is configured to dissect or separate target tissue from certain tissue, e.g., adherent, connective, joined or other tissue.

A component for use as or incorporation within a medical instrument navigable through body vessels of a human subject is provided. The component includes a tubular portion with an interrupted spiral defined by alternating cut and uncut sections. The interrupted spiral has a rigidity between that of a continuous cut spiral and an uncut tube. The rigidity of the interrupted spiral along its length may be varied by changing its pitch or the number of bridge members or the length of each bridge member. According to a method of manufacturing such a component, a tubular member and a cutting member are provided. At least one of the tubular member and the cutting member is moved though an angle defining a helical path with respect to the other, while the cutting member is alternated between cutting and not cutting the tubular member to form an interrupted spiral.

A shut-off type diaphragm valve adapted for use in an atomic layer deposition system includes a valve seat having an annular seating surface that surrounds an inlet of the valve and extends radially therefrom. The seating surface contacts a substantial portion of the first side of a flexible diaphragm when the diaphragm is closed, to facilitate heat transfer and counteract dissipative cooling of the diaphragm, thereby inhibiting condensation of a medium flowing through the valve passage. The seating surface is preferably flat and smooth, to prevent shearing of an elastomeric diaphragm. For a plastic diaphragm, a ring-shaped seating ridge may extend from the seating surface to cause localized permanent deformation of the diaphragm and enhanced sealing, while still allowing a substantial portion of the diaphragm to contact the seating surface for enhanced heat transfer. Valve speed enhancements and other reliability enhancing features are also described.

An electrical power supply system connected to an electrical grid, includes at least one source of electrical power, an inverter which receives power from the electrical source and delivers power to a local load, and a connection to the electrical grid. The system also includes a control unit for controlling the inverter, which interrupts the delivery of power by the inverter when at least one electrical parameter of the system exceeds a threshold value. The system also includes anti-islanding logic which detects at least one symptom of an islanding condition of the system and, when the symptom is detected, to cause a variation in the power level delivered by the inverter.

The invention relates to a sensor and assembly comprised in a housing for a hand-held and hand-operated printing device controlled by a processor, and a method therefor. It provides that the assembly comprises an arrangement and a method for preventing skew and cutting of printed images.

A thermoplastic injection molding system and method of use is described for molding parts from heated plastics and other organic resins. The machine uses heat sources located along the barrel to heat the source material while an auger screw transports the source material in the barrel. This transport step does not shear the source material, nor does it use friction to produce the heat necessary to melt the source material. The material becomes substantially liquid or melted during the heating process, and the melted material is forced, by the auger screw, into a chamber whereupon a plunger, situated concentrically with the auger screw, injects the material from the chamber into a mold. Sensors located along the barrel and in the chamber ensure consistency between mold cycles. The controller dynamically adjusts the injection molding process to achieve more consistent and reliable molded parts.

The invention provides a compact axial-flow magnetic-levitation artificial heart pump, in particular to an artificial heart pump characterized in that two permanent magnet bearings and a mix of radial magnetic bearing suspension, and the radial magnetic bearing and a permanent magnet motor share a stator and a rotor. The compact axial-flow magnetic-levitation artificial heart pump has the structure that the compact axial-flow magnetic-levitation artificial heart pump comprises a stator assembly, a rotor assembly, a front guidance impeller and a rear guidance impeller; a taper-shaped or axial permanent magnet bearing is respectively formed by a first permanent magnet (9) and a right permanent magnet ring (14) as well as a second permanent magnet (19) and a left permanent magnet ring (18) to realize the purpose that the rotor axially supports in a suspension mode; a torque coil (5) and a suspension coil (7) are respectively wound on a motor stator (6); and with a certain decoupling control algorithm, the motor stator not only generates torque force but also generates radial suspension support force. In the compact axial-flow magnetic-levitation artificial heart pump, the rotor is supported by permanent magnetic force and electromagnetic force, and the compact axial-flow magnetic-levitation artificial heart pump has the advantages of small damage on blood, less radiation, compact structure and the like, is easy to transplant, is suitable for patients suffering from cardiac function failure, heart diseases and the like and can be used for ventricular assisting for a long time or a short time.

When a user wants to operate a device, if electric power is being used at a level such that a circuit breaker will shut off, he cannot use the device he wants to use unless he himself intentionally reduces the electric power being used for the other devices to increase the amount of usable power. A power control device (3) is provided with a priority setting unit (16) that is capable of setting usage priorities for household devices connected by wire or wirelessly or for adaptors connected to the household devices. A household device or an adaptor connected to the household device operates within the usable power resulting from an inquiry to the power control device (3). When there is no excess in usable power over the power required in the inquiry, the power control device (3) reduces the power used by a device which has a lower priority than the device which made the inquiry in order to allow the device with the higher priority to be used.

The invention discloses a five-axis linkage loading test device for a machine tool. The device consists of a following loading mechanism mechanical part and a measurement and control system. The following loading mechanism mechanical part applies a load to a spindle through an interface of the spindle of the machine tool. The measurement and control system is used for realizing servo motor control, mechanism motion control, load calculation and signal processing functions of the following loading mechanism mechanical part. The five-axis linkage loading test method for the machine tool comprises the five major steps of: 1, measuring load data; 2, establishing a load spectrum; 3, organizing tool path data; 4, performing hardware solidification of the data; and 5, calibrating and correcting a database. The device and the method are universal and widely applicable to various types of tests in the reliability of the machine tool, and have practical significance and reference value for the research and development of high-performance load simulators in China.

The invention provides a nano talcpowder modified polypropylene composite material and a preparation method thereof. A nano-scale talcpowder filler is added and a proper amount of traditional micro-scale talcpowder is added for synergistic modification of polypropylene, an agglomeration phenomenon of the nano filler is avoided to the greatest extent by a special feed and extrusion process, and the composite material with higher comprehensive performance and wider application range is obtained under the conditions of relatively low material density and cost.

The invention discloses a high-performance polypropylene nano composite material and a preparation method thereof, and belongs to the field of polymer modification and processing. The high-performance polypropylene nano composite material comprises the components in percent by weight: 39 to 98% of polypropylene, 1 to 15% organic clay, 0 to 30% of inorganic filling material, 0.1 to 6% of compatilizer, 0 to 20% of flexibilizer, 0.2 to 2% of stabilizer, and 0 to 4% of other additive. Through the cooperative modification of nanoscale organic clay and micron-sized talcum powder to polypropylene, a nano composite material with higher rigidity, higher tenacity and other performance is obtained at a lower material density.

The invention discloses a sugarcane seedling integrity detection system and method, and the detection system includes a sugarcane conveying mechanism, a guiding mechanism, a collecting drum and a driving device; the large bell end of the guiding mechanism is corresponding to the output port of the sugarcane conveying mechanism, and a stem node induction mechanism is arranged on a sugarcane conveying travel path at the small bell end of the guiding mechanism; the two ends of the collecting drum are arranged on an installation base in a mode of capable of rotating, one end tube opening of the collecting drum is corresponding to the small bell end of the guiding mechanism, and the drum wall of the outer surface of the collecting drum is fixedly connected with a first gear, and is provided with a collecting round hole passing through the drum wall; a shaft of the driving device is provided with a second gear engaging with the first gear; an image acquisition mechanism is installed in the collecting round hole; the stem node induction mechanism, the stem node induction mechanism and the driving device are connected with a control device; the control device is connected with an image processing device, an image analysis device is connected with the image acquisition mechanism; and the system combining the corresponding method can detect sugarcane seedling integrity.

A device for removing an insulation jacket from a wire core of an insulated wire or cable is provided for encouraging recycling. The device employs cutting blades engaged to a first roller to cut a slice along the length of an inserted insulated wire or cable. A frictional engagement between the distal edge of the blade and an opposing recess surface provides for translation of the length of wire through the device during rotation of one or both of the blade and recess surface. Translational movement of the blades and a biasing force can enhance the frictional engagement and provide a distance of travel to prevent cutting of the insulated wire or cable.

A modular flooring system is disclosed which is designed to support heavy loads while providing stability and ground protection. The invention contemplates a modular tile with fully integrated connector loops, receiver pins and optional metal cam locks located in the corners of the floor tile or along the tile edges. The tiles contain an overlap edge, which engages with an underlay edge on an adjacent tile. This arrangement allows the tiles to overlap at an angle other than 90 degrees, providing greater strength at the point where adjacent tiles meet. The underlay edge contains a liquid capture channel which traps liquids which may seep between the adjacent tiles. The tiles are also provided with longitudinal recesses which extend through the top and bottom surfaces to the surface below, allowing for ventilation that is critical for grass and turf surfaces. The modular flooring system provides increased strength and stability and protection of the subsurface.

A wafer-level packaging method of image sensor chips comprises the steps of providing wafers, mixed substrates and carrier plates. The wafers comprise a plurality of image sensor chips, and the mixed substrates comprise a supporting frame and a plurality of transparent substrate units. The supporting frame comprises a plurality of windows, the transparent substrate units cover the windows correspondingly, and the wafers, the mixed substrates and the carrier plates are fixed together in sequence in an overlapped mode. The back faces of the wafers are subjected to a line redistribution process and a welding flux protrusion manufacturing process, and the wafers and the mixed substrates are cut along cutting channels, so that the image sensor chips are separated to a plurality of image sensor chip modules which comprise separated mixed substrate units and image sensor chip units bonded with the mixed substrate units. By means of the method, the image sensor chips are maintained to be clean in the whole packaging process without being damaged, and the packaged image sensor chip modules have high reliability.

The invention discloses a circumcision locator and a disposable circumcision stapler. The circumcision locator comprises a fixed sleeve with circular structure. The size of the outer edge of the bottom end of the fixed sleeve is matched with the size of the inner ring of the disposable circumcision stapler, the fixed sleeve is connected with a handle by a connecting part, the connecting part is provided with an accommodation space for accommodating glans penis, the bottom end of the fixed sleeve is extended to arrange a locating part, and the outer end surface of the locating part is in inclined structure. The side surface of the inner ring and the outer ring of the disposable circumcision stapler matched to use is in inclined structure. By adopting the structure, the circumcision locator and the disposable circumcision stapler which is matched with the circumcision locater can be specially used to push the inner ring in order to sheath the glans penis and accurately locate when the disposable circumcision stapler is used to carry out the circumcision.

A thin-film transistor includes a gate layer, a gate insulting layer, a semiconductor layer, a drain layer, a passivation layer (each of which being formed on or over an insulating substrate), and a conductive layer formed on the passivation layer. The conductive layer is connected to the gate layer or the drain layer by way of a contact hole penetrating at least the passivation layer. The passivation layer has a multiple-layer structure comprising at least a first sublayer and a second sublayer stacked, the first sublayer having a lower etch rate than that of the second sublayer. The first sublayer is disposed closer to the substrate than the second sublayer. The second sublayer has a thickness equal to or less than that of the conductive layer. The shape or configuration of the passivation layer and the underlying gate insulating layer can be well controlled in the etching process, and the conductive layer formed on the passivation layer is prevented from being divided.

The invention relates to a liquid die forging and rolling compound formation method for a GH4033 high-temperature alloy irregular-section large ring piece. The method comprises the following steps of: 1) smelting; 2) performing liquid die forging, namely fixing a liquid die forging mold on an indirect extrusion casting machine, pouring a quantitative amount of alloy solution into the liquid die forging mold at the pouring temperature of between 1350 and 1450 DEG C, pressurizing at the speed of 40 to 50 mm/s, filling for 1 to 6 seconds at the specific pressure of 300 to 400 MPa, keeping the pressure for 50 to 90 seconds, and thus obtaining a similarly final section ring blank; 3) homogenizing; 4) performing afterheat isothermal rolling, namely cooling the homogenized similarly final section ring blank to the temperature of between 1100 and 1140 DEG C, and performing afterheat isothermal rolling on a radial shaft compound ring rolling machine; 5) performing thermal treatment, namely performing solid solution instant thermal treatment, keeping the ring blank at the temperature of between 900 and 1000 DEG C for 1 to 2 hours, performing air cooling, then heating to the temperature of 1080 DEG C, keeping the temperature for 8 hours, performing air cooling to the temperature of 750 DEG C, keeping the temperature for 16 hours, and performing air cooling; and 6) finishing.

A cable head for use with coiled tubing electric line in well operations has upper and lower housings attached by a shearable connection to allow release of the lower housing and any downhole equipment carried thereon. A piston is slidable within the housing by fluid pumped through the coil tooling to release a locking mechanism that otherwise prevents the shearing disconnect of the housings. Flow ports in the housing to allow pumping or circulation of fluid through the cable head are positioned to remain continuously open, regardless of the piston position, to maximize the range of flow rates over which fluid can be circulated. The electric line of coiled tubing is only stripped of its armor past sealed receipt thereof in a cable passage below the flow path of the fluid, thereby avoiding exposure of the conductor to the fluid to minimize the potential for damage or failure.

The invention relates to a forging process of super large workpieces and provides a forging forming process of a heteromorphic transition section of a super large pressure vessel. The process comprises the following steps of: 1) punching; 2) drawing out; and 3) reaming with a special lower reaming anvil by adopting free forging, wherein the forming surface of the special lower reaming anvil is raised along the low and middle parts of the two axial ends of a forging stock; aiming at forming of each indexing region of the forging stock, firstly the two axial ends of the indexing region are deformed through forging and pressing and are matched with the middle raise of the special lower reaming anvil to form bidirectional axial limits; and after reaming, the inner circumferential surface of the forging stock comprises an inner concave surface formed through the middle raise of the special lower reaming anvil. The process has the following beneficial effects that: through the final inner concave surface of the inner circumferential surface of the forging stock, the dressing metals are saved, the raw material consumption can be reduced, the machining allowance is reduced, the metal flow lines are prevented from being cut off and the forging block quality is improved; and the process is suitable for manufacturing the heteromorphic transition section forging of the super large pressure vessel.