225results about How to "Appropriate distance" patented technology

The present invention relates to the medical field, in particular relates to the practice of percutaneous vertebroplasty where a pair of syringes in the distal extreme of a lengthened hydraulic device, are united by a camera of intermediate connection of larger diameter (pressure exerting body) or modified inverted syringe tube with a bolster, a hydraulic connecting tube of flexible material that transmits the pressure of the smaller diameter manual or impulsion syringe in the proximal extreme of the device toward the intermediate cylindrical larger diameter camera (pressure exerting body), this camera is in an inverted position with regard to the first syringe (fluid control), this intermediate camera has a moving piston longitudinal to the axis of the cylinder that is controlled with the first syringe (manual) and in cooperation with the atmospheric pressure. The injecting syringe loaded with bone cement is coupled with the bolster of the body of pressure, and to the needle that drives the cement toward the interior of the bone. The intermediate camera (pressure exerting body) together with the hydraulic tube and the manual syringe form a hydraulic press system (F/A=f/a) that allows to increase in a potential way the pressure exerted in the first syringe and to make the injection of polymethylmethacrylate (PMMA) at an approximate distance of 1.0 m to 1.5 m.

A case knife (1, 101), generally consists of a pair of substantially symmetrical handle shells (13, 112). A single edge razor blade B is removably supported in one end of the handle formed by these handle shells. Each handle shell includes two moving parts—a guard (10, 110) and a thumb or finger operable button (5, 105). Each such guard, when paired with a substantially identical guard of the other handle half shell, flanks the otherwise protruding sharp edge of the razor blade. Each guard can move independently to expose a protruding corner of the razor blade. The operable button is mounted on an axle or lug (14, 103) that passes from the inside of a handle shell, through to its outside surface. This axle is in turn fixed to a cam follower (20, 120) mounted on the inside of each shell.

The present utility model relates to the assembly arrangement for a bandage holding a portable small-scale transcutaneous electrical nerve stimulator device.

The invention discloses a method for preparation of modified asphalt with SBS and waste rubber powder as the modifier. The method adopts a physics and chemistry combined technology, uses a coupling agent to conduct chemical treatment on the modifier surface, so that a coupling effect can be generated between SBS and waste rubber powder, under a synergistic effect of EVA, extrusion molding granulation is carried out to obtain waste rubber powder/SBS/EVA blend particles. The blend particles are added into asphalt, shearing dispersion is performed, under a synergistic effect of a cross-linking agent and an antiaging agent, the modified asphalt with excellent high-and-low temperature performance, aging resistance, high elastic recovery, high 60DEG C dynamic viscosity and high temperature storage performance can be obtained. The modified asphalt product is applicable to drainage road pavements, steel bridge deck paving and old pavement reconstruction stress absorbing layers. The raw materials used by the method have wide sources, can be produced on existing SBS modified asphalt devices, and new equipment investment is unnecessary. Therefore, the modified asphalt is suitable for industrialized production and long distance transport.

A zoom lens for a projection display device includes, in order from the enlarging side, a first lens group having negative refractive power and that is stationary during zooming, second and third lens groups having positive refractive power, a fourth lens group that has refractive power that is much weaker in absolute value than the refractive powers of the other lens groups, and a fifth lens group having positive refractive power and that is stationary during zooming. The second, third, and fourth lens groups move with coordinated movements continuously toward the enlarging side during zooming from the wide-angle end to the telephoto end of the zoom range. The zoom lens satisfies certain conditions related to focal lengths of the zoom lens and lens groups and distances along the optical axis. A projection display device uses the zoom lens.

The invention discloses a multi-drone cluster navigation method. The method comprises steps that an interaction protocol among drones is determined; according to the interaction protocol, a flight status of each drone of the drone cluster is determined by utilizing sensing devices and/or positioning devices of the drones; control vectors of the drones are determined; a revenue function is determined according to the flight status of the drones; based on the flight status, the control vectors and the revenue function, the learning algorithm is utilized to train a neural network model centrallyto obtain a control function used for describing the mapping relationship from the flight status to the control strategy of the drones, and the control function is shared among the drones of the multi-drone cluster; based on the control function, a corresponding control command is generated by each drone according to its own flight status to implement autonomous cluster navigation.

A syringe device for skin treatment is provided, which includes a syringe for injecting a drug into a skin through a needled at an end, a syringe seat connected with a cylinder of the syringe receiving the drug therein to allow a reciprocation of the cylinder within a limited range according to a direction of injecting the drug, a mount formed on the syringe seat and to which the cylinder of the syringe is fixed, an injector mounted on one side of the syringe seat to be rotated by a driving force to move in association with movement of the syringe seat to move a rod of the cylinder toward a needle, and a controller mounted on one sides of the syringe seat and the injector to operate the injector when the needle is in contact with the skin and the syringe seat is moved to one end within a limited range, and stop the injector when the needle is apart from the skin and the syringe seat is moved to opposite end within the limited range. Accordingly, waste of drug can be avoided, because the syringe seat to allow reciprocation of the syringe cylinder and the controller ensure that the rod of the cylinder for injecting drug is moved by an appropriate distance.

An earphone integrated with a microphone includes a housing, a speaker, a microphone (audio-recording device), and a supporting member. The housing has an audio-output hole formed thereon a receiving space formed therein. The speaker and the microphone are arranged in the receiving space. The supporting member is arranged in the housing. One end of the microphone is mounted on the supporting member for suspending the microphone in the receiving space. A buffering space is formed around the microphone. Thus, the earphone can achieve anti-noise effect in providing improved communication quality.

The on resistance per unit area of integration of a DMOS structure is reduced beyond the technological limits of a mask that is defined based upon the continuity of a heavily doped superficial silicon region along the axis of the elongated source island openings through the polysilicon gate layer in the width direction of the integrated structure. The mask no longer needs to be defined with a width (in the pitch direction) sufficiently large to account for the overlay of two distinct and relatively critical masks. These two masks are the source implant mask and the body contacting plug diffusion implant contact opening mask. Such a constraint of the prior techniques restricting the opening through the polysilicon gate layer to safely ensure an appropriate distance of the body connection plug diffusion dopant profile from the definition edges of the polysilicon is overcome by defining the body connection plug diffusion implant area by way of a mutual orthogonality between two no longer critical masks that may both be defined at minimum linewidth of the fabrication process.

The invention belongs to a pump, in particular to a guide screw piston pump. The guide screw piston pump consists of an electromotor, a main shaft commutator, a guide screw, a nut leader, a connecting supported lever, a nut, a piston rod, a discharging valve, a piston, a cylinder, an outlet flange, an inlet flange, a sucking valve, an upper support seat, a lower support seat, a lower limit switch, and an upper limit switch. The piston, the piston rod, and the nut are connected together, and the nut and the guide screw are meshed. The invention adopts the structure that the piston, the piston rod and the nut are connected into a whole, the meshed motion of the nut and the guide screw is used as the power of the pump body, the discharging pressure is strong, the structural action parts are less, the cost is low, and the power is high. The invention is in particular applicable for the viscous medium and long-distance transmission, and is energy-saving and efficient.

The invention discloses a high-precision servo press fitting method based on a computer, and relates to the field of automation control. The collecting pressure is dynamically compensated according to collected pressure values and a pressure change trend, adaptive control is performed on an elastic workpiece by combining with a displacement sensor and a pressure sensor, therefore, the pressing accuracy and pressure control stability for the elastic workpiece are improved, the phenomenon that elastic workpiece pressing is unqualified due to the fact that in a traditional technology, the pressure is too large or the actual pressing pressure is slightly smaller cannot occur, and the workpiece quality is guaranteed; meanwhile, due to the fact that the influence of interfering data is greatly eliminated, the adaptability of the pressure control method in different processing environments can be guaranteed.

The invention discloses a method for rooting of horseradish outside a tissue culture seedling bottle. The method is characterized by comprising the following steps of: utilizing tissue culture to induce the stem and the tip of the horseradish to obtain a rootless bud in a test tube; after subculture, domesticating the bud and cutting the bud to obtain a simple bud; inserting the bud into a soil matrix; and applying root promoter and 1/2 MS nutrient solution to the bud each week. After being inserted in the soil matrix for 30 days, the bud can have a good rooting effect. The technology greatly shortens the production cycle of tissue culture seedlings of the horseradish and reduces the production cost.

The invention relates in particular to a robot system comprising a rail track and a robot, which is designed to be displaceable in a direction of movement, guided by the rail track. According to the invention, the rail track consists of a plurality of rail track segments disposed in the direction of movement, and the robot is designed to handle such rail track segments and to extend the rail track by attaching further rail track segments to a respective last rail track segment of the existing rail track. Furthermore, according to the invention, a tension member that is attached to the robot, in particular a tension cable, is provided, which runs along the rail track, wherein a winding device for receiving the tension member is provided in order to introduce a tractive force, preferably in the region of an end of the rail track. The invention is used in particular in order to make it possible to provide a rail track in an area that is difficult or impossible for humans to access and to recover a robot running thereon in the event of damage.

The invention discloses a composite plastic weaving material. The invention is characterized in that the weaving material is prepared from the following raw materials in parts by weight: 100 parts of polypropylene, 12-14 parts of linear low density polyethylene, 2-3 parts of polystyrene, 1-1.5 parts of polyisobutylene, 1-1.3 parts of anilinomethyl triethoxy silane, 0.8-1.0 part of sodium hexametaphosphate, 1.3-1.8 parts of butyl methacrylate, 0.1-0.2 part of Angelica oil and 3-3.5 parts of assistant. The weaving material is prepared by the following steps: proportioning, melting, filtering, extruding to obtain a film, cooling with water, cutting into a filament, drawing, rolling and the like. The composite plastic weaving material has the advantages of simple formula and low cost; the prepared plastic woven bag can effectively prevent oxidation reaction caused by ultraviolet irradiation, solves the problem of the short service life in the packaging bag in the prior art; and the composite plastic weaving material is firm and durable, can resist skid and bag breaking, and is especially suitable for long distance transport and export.

The invention discloses a distributed temperature sensing optical cable, comprising a fiber; a tight tube wraps the fiber, a flexible metallic tube wraps the tight tube, an aramid fiber reinforcing layer wraps the flexible metallic tube, wire sheathing wraps the aramid fiber reinforcing layer and a low-smoke halogen free flame retardant sheath wraps the wire sheathing. The optical cable can be applied to a distributed temperature monitoring system, which can be used as a temperature sensor and a channel for data information transmission.

Electrode portions located on both ends are set to detection electrode portions, ground electrode portions are set on the inside thereof, and a plurality of central electrode portions are set to driving detection portions. A coordinate position of a finger can be obtained based on an output difference between the detection electrode portions, and a vertical distance can be obtained based on an output sum. When the vertical distance of the finger is shorter than a first threshold, switching is performed so that an interval between the detection electrode portions is shortened, and when the finger approaches, a touch detection mode is set.

A clamping device for dispensing surgical fasteners includes a lower arm having a proximal end, a distal end, and a longitudinal axis extending between the proximal and distal ends, and an upper arm pivotally connected with the lower arm. An actuator is coupled with the upper and lower arms for moving the distal ends of the arms toward one another for closing the clamping device. A surgical fastener dispenser is secured to the distal end of the lower arm. The dispenser includes a cartridge body having a top surface with a surgical fastener dispenser opening. A pad is pivotally connected to the distal end of the upper arm. When the clamping device is closed, a bottom surface of the pad applies a clamping force upon the top surface of the cartridge body for dispensing one of the surgical fasteners at an angle that is perpendicular to the longitudinal axis.

The invention relates to a hanging basket applied to a curved surface and a construction method thereof. The hanging basket comprises a guide mechanism, a suspension mechanism and a working platform,the guide mechanism comprises a support and a first steel wire rope, the support is fixed to the top of a building, one end of the first steel wire rope is fixed to the support, the other end of the first steel wire rope is fixed to the ground, and the first steel wire rope has pre-tightening force; the suspension mechanism comprises at least two second steel wire ropes, one end of each second steel wire rope is fixed to the support, and the other end of each second steel wire rope is a free end; the second steel wire ropes are adjustably hoisted on the working platform through a safety lock;a guide wheel device is arranged at the bottom of the side, close to the wall, of the working platform, and the first steel wire rope is arranged in a rail of the guide wheel device so that the working platform can slide along the first steel wire rope. According to the hanging basket, the guide mechanism independent of the suspension mechanism is matched with the guide wheel device on the workingplatform to guide the movement of the working platform, so that a proper distance is kept between the working platform and a construction wall surface, and the construction requirement is met.

A mobile platform structure able to vary a viewing focal length comprises a mobile platform, a base, a slide rail, a tooth bar, a motor, a transmission gear, a control module, a signal cable, a telemeter, and a power cord. The platform is coupled to the base via the slide rail, equipped with the tooth bar, and moved back and forth by the motor and transmission gear. The control module controls the motor to move the platform at a specified timing by a specified distance, whereby the viewing focal length of the user, who watches the display on the platform, can vary frequently lest the eyes fatigue. The telemeter is installed on the platform and detects the distance to the user's face. If the user's face approaches the platform too much, the control module controls the motor to move the platform to have an appropriate distance to the user's face.

An automatic beauty therapy equipment contains a displacement driving device including a pedestal to be driven by a displacing mechanism so as to move straightly or curvedly in a first-axis direction, a second-axis direction, and a third-axis direction; a therapy device including a therapy element fixed in the pedestal; a controlling device including a controller electrically connecting with the displacement diving device and the therapy device, the controller being used to control the displacement driving device to urge the therapy element of the therapy device to move straightly or curvedly within a therapy area in the first-axis, the second-axis, and the third-axis directions, and the controller being served to set a therapy area so that the therapy element is driven to move vertically and swing with a curved profile of the therapy area to have a precise and stable beauty therapy in the therapy area.