39results about How to "Achieve injection" patented technology

The invention discloses a three-dimensional force-sensing surgical needle for minimally invasive surgery. The needle comprises a minimally invasive surgery needle, the minimally invasive surgery needle comprises a medical surgery needle head which is fixedly connected to a thin hose and used for injecting and sucking a liquid or a medicine and a hollow metal tube which is connected to the medicalsurgery needle head, and three fiber grating sensors are evenly distributed on the outer surface of the hollow metal tube in the 120-degree axial direction in the circumferential direction; a fiber grating demodulator is connected to the fiber grating sensors, emits laser to the fiber grating sensors, receives laser signals with a specific wavelength returned by the fiber grating sensors, convertsthe laser signals into digital electric signals and demodulates the wavelength corresponding to each grating point; and a data acquisition and force decoupling calculation device receives the wavelength corresponding to each grating area sent by the fiber grating demodulator and performs analysis and calculation so as to obtain stress information of the front end of the minimally invasive surgeryneedle in real time, wherein the stress information is displayed by a display device in real time. The surgical needle is used for detecting the operation force in the operation process in real time.

The invention relates to the field of sample testing, and discloses a sample tester based on a laser-induced breakdown spectroscopy. The sample tester comprises an optical path chamber and a sample chamber, an incidence unit, a fluorescence collection unit and a spectroscopic analysis unit are arranged in the optical path chamber, and a sample operation platform for the placement of a sample is arranged in the sample chamber; both the optical path chamber and the sample chamber are sealed, the optical path is connected to the sample chamber through an optical window, a laser beam emitted by the incidence unit passes through the optical window to excite the sample to emit fluorescence, and the fluorescence collection unit collects and transmits the fluorescence to the spectroscopic analysisunit. By isolating and sealing the optical path chamber and the sample chamber, the optical system of the sample tester can be conveniently kept clean, and thereby the adverse influence of dust produced by the surface of a to-be-tested sample burned by laser in the process of analytical testing on the tester and a test result is greatly reduced.

The invention belongs to the technical field of soilless culture, and particularly provides a rotatable type soilless culture device for seedlings. The rotatable type soilless culture device for seedlings comprises a support frame, a first disc, culture barrels and a controller, wherein a red light lamp tube is arranged on the inner wall of the upper end of the support frame; the four culture barrels are circumferentially distributed with the first disc as a circle center; internal space of each culture barrel is divided into a first cavity and a second cavity by a first partition board, an aqueous solution is contained in the second cavity, two solution barrels are arranged in the first cavity, a transmission shaft is arranged between the two solution barrels, two growth barrels are placed in the second cavity through an opening, and the seedlings are cultured in the growth barrels; second sprayers are uniformly distributed on the two sides of a first fixed rod; second guide grooves are communicated with first guide grooves and the first cavities. The rotatable type soilless culture device is simple in structure, has functions of adding a culture solution automatically and changing water automatically, and cannot damage the seedlings in a water changing process.

The invention provides an automatic injection pen, including an upper housing, a lower housing, a syringe, a piston rod for squeezing an inner space of the syringe, a drive sleeve sleeved with the piston rod, and a trigger sleeve sleeved on the drive sleeve and slidably connected with the upper housing along an axial direction of the upper housing for clamping the piston rod. The triggering sleevearranged inside the lower housing and slidably connected with the lower housing along the axial direction thereof, for pushing the triggering sleeve to move along the axial direction of the upper housing so that the triggering sleeve and the piston rod are disengaged from the clamping connection, and pushing the piston rod to squeeze the syringe barrel through the driving sleeve; the upper housing and the lower housing are pivotally connected in the circumferential direction thereof so that the trigger sleeve can be pushed by the trigger sleeve when the trigger sleeve is in the open positionby relative rotating between the upper housing and the lower housing. Compared with the prior art, the present application can simplify the internal structure of the automatic injection pen and reducethe production cost.

The invention belongs to the technical field of soilless cultivation and specifically relates to a soilless culture process for a young seedling. A guide slot and an impeller are arranged, and a second magnet block moves up and down to make an air flow in the guide slot flow, so that a rotating shaft drives the impeller to rotate, and a water flow in a first cavity flows due to the rotation of theimpeller, so that garbage is effectively prevented from being precipitated, it can be ensured that the bottoms of culture barrels are clean after water is changed, and the growth of the young seedling can be favorably realized; in addition, a culture solution can be more uniformly mixed with water when the water flow flows, so that the phenomenon that the nutrient solution at the root of the young seedling is excessive to affect the growth of the young seedling is avoided; a used rotatable soilless culture device for the young seedling comprises a support frame, a first disk, the culture barrels and a controller; the inner wall of the upper end of the support frame is provided with a red light lamp tube; and the four culture barrels are provided and are circumferentially distributed by taking the first disk as a center of a circle. By using the soilless culture process, garbage precipitation in a water changing process can be effectively avoided, and the young seedlings cannot be injured in the water changing process.

The invention discloses an angle adjusting device for a lamp body of a recessed lamp. The angle adjusting device comprises a lamp body assembly and a mounting disc with a light outlet hole; a fixed plate is eccentrically arranged on the upper surface of the mounting disc; one side of the lamp body assembly is detachably connected with a movable plate; a first connecting plate and a second connecting plate are connected between the movable plate and the fixed plate; the middle of the first connecting plate is rotationally connected with an angle adjusting plate capable of adjusting the inclination angle of the lamp body assembly in a linkage mode, the angle adjusting plate is gradually bent on the vertical plane in the direction away from the first connecting plate, the curvature radius isgradually increased, and a limiting mechanism for maintaining the lower surface of the angle adjusting plate to make contact with the upper surface of the mounting disc is arranged on the mounting disc. When the light emitting projection angle is adjusted by manually pushing and pulling the lamp body assembly, the lamp body assembly can move backwards in the rotating direction while eccentricallyrotating, projected light can be completely emitted out of the light outlet hole, the light emitting amount cannot be reduced due to light shielding, and the operation process is simple.

The invention discloses a veterinary injector with the stirring function, which comprises an injection cylinder and a piston rod, one end of the injection cylinder is fixedly connected with a liquid outlet pipe, the liquid outlet pipe is communicated with the injection cylinder, a stirring threaded shaft is arranged in the injection cylinder, and stirring blades are fixedly arranged at the end, close to the liquid outlet pipe, of the stirring threaded shaft, and the rotating shafts on both sides of the stirring blades are sleeved with a rotating shaft sleeve. According to the invention, the stirring threaded shaft is threaded connected with the piston rod, so that the piston rod moves in the injection cylinder to drive the stirring threaded shaft and the stirring blades to rotate, and thenthe medicine in the injection cylinder is stirred, and the position of the threaded sleeve on the guide post is adjusted by rotating the threaded sleeve, therefore, the maximum limit range of the piston rod in the injection cylinder is changed, the maximum injection amount of one-time injection is controlled, medicine injection is executed through a one-way injection needle, a first check valve and a second check valve, medicine in a medicine bottle is taken in through the injection cylinder, and the problems in the background technology are solved.

The invention provides an integrative LED lamp which is characterized by comprising a baseplate, one or more groups of LED lamp belts and a reflective element used for increasing reflective efficiency, wherein the baseplate is provided with an integrally formed lamp cup structure which comprises a cup roof opening and a cup bottom baseplate; the at least one group of LED lamp belt is mounted on the cup bottom baseplate and positioned in the lamp cup structure; a movable fixing structure is arranged on the cup wall of the lamp cup structure; the reflective element is movably inserted into the cup wall through the movable fixing structure; part of the light emitted by the at least one group of LED lamp belt is emitted out from the cup roof opening after being reflected by the reflective element, and the other part of light emitted by the at least one group of LED lamp belt is directly emitted out through the cup roof opening. The LED lamp solves the problems of light loss, weak illumination effect and the like.

The invention provides a multi-light emergent surface LED (Light Emitting Diode) lamp with a lamp cup structure, comprising a substrate, at least two groups of LED lamp bands and a light reflecting element which is used for increasing the light reflecting efficiency, wherein the substrate is of the lamp cup structure which is subjected to integrated moulding; the lamp cup structure is provided with a cup top opening and a cup bottom substrate; the section of the cup bottom substrate is provided with a triangular or V-shaped bulge; the LED lamp bands are respectively arranged on the two side faces of the bulge; two light emergent surfaces are formed in the lamp cup structure; the cup wall of the lamp cup structure is provided with a movable fixing structure; the light reflecting element is movably inserted into the cup wall through the movable fixing structure; another part of light rays emitted by each light emergent surface is directly emitted from the cup top opening. By using the multi-light emergent surface LED lamp, the light loss degree of a light source is effectively improved, adjustment can be carried out according to different needs of light emergence, and light emergence can be optimally realized.

The invention relates to a connection rod type nozzle mechanism, comprising a nozzle provided with a jetting channel therein, wherein the jetting channel consists of transverse and vertical channels which are vertical to each other, a shaft hole located at the jetting channel and vertical to the transverse and vertical channels is formed in the nozzle, a rotating shaft with a through hole is rotationally arranged in the shaft hole, and only under the jetting state, the feed port and the discharge port of the through hole are correspondingly communicated with the jetting hole respectively; the end of the rotating shaft is fixed with one end of a first connection, and the other end of the first connection rod is hinged with one end of a second connection rod which moves under the drive of a power source. In use, the jetting channel can be opened or closed by driving the rotating shaft, thus the jetting port is not required to contact with a die in pre-molding and jetting, and the multi-direction continuous injection and pre-molding composite functions are likely to achieve; meanwhile, the plastic smelt is not liable to remain in the vertical channel due to dead weight, so that the occurrence of overflow phenomenon is effectively avoided when the jetting channel is in the close state; in addition, the connection rod type nozzle mechanism has the advantages of simple overall structure, low cost, convenience in maintaining as well as long service life.

The invention relates to a high-efficiency rotating injection mechanism for an electrolyte. The high-efficiency rotating injection mechanism comprises a work bench (1), a sliding block (2), an injection barrel (3) and spray gun connecting rods (323), wherein the sliding block (2) is movably arranged on the work bench (1); the injection barrel (3) comprises a first barrel body (30), injection rods (31) and spray guns (32); the spray guns (32) are arranged on a bottom plate (303) of the first barrel body (30); rotary mobile grooves (3030) for the spray guns (32) are formed in the bottom plate (303); the spray gun connecting rods (323) connect the spray guns (32) into a whole; the spray gun connecting rods (323) are connected with and provided with a motor (324); and the motor (324) drives the spray guns (32) to move along the rotary mobile grooves (3030). The invention provides the electrolyte injection mechanism. The electrolyte absorption mode in the mechanism is rotary centrifugal injection; injection of the electrolyte is finished by twice; and the electrolyte absorption effect is good.

The invention provides an anesthesia puncture needle structure, which relates to the technical field of medical equipment and comprises a seat body, an injector tube, a propelling part, a marking part and a cleaning part, the base body is of a concave structure, an injector tube is installed in the base body, and a laser detector is installed on the base body. The two supporting arms are symmetrically welded on the protection plate, and the two supporting arms are both of an L-shaped plate-shaped structure; the two supporting arms and the protection plate jointly form a concave fixing structure, and the concave fixing structure is fixedly buckled with the wrist of a patient, so that damage to a needle head due to resistance caused by tension of the patient during injection can be prevented, and the problems that firstly, the needle head of an existing device is easy to bend during puncture; and secondly, an existing device needs to be destroyed after being used, but is easy to mix after being used, and whether the device is used or not cannot be accurately distinguished.

The invention discloses a three-dimensional force-sensing surgical needle for minimally invasive surgery, including a minimally invasive surgical needle. Needle, a hollow metal tube connected with a medical surgical needle, on the outer surface of the hollow metal tube, there are three fiber grating sensors uniformly distributed along the circumferential direction of 120° axially; the fiber grating demodulator is connected with the fiber grating sensor, The sensor emits laser light, receives the laser signal of a specific wavelength returned by the fiber grating sensor, converts the laser signal into a digital electrical signal and demodulates the wavelength corresponding to each grating point; the data acquisition and force decoupling calculation device receives the signal sent by the fiber grating demodulator Analyze and calculate the wavelengths corresponding to each grating area, and obtain the force information of the front end of the minimally invasive surgical needle in real time, which is displayed by the display device in real time. The invention is used for real-time detection of operating force during operation.

The invention discloses a rapid manufacturing and forming integrated device for an annular gasket. The rapid manufacturing and forming integrated device comprises a rapid manufacturing device and a cooling device. According to the rapid manufacturing device, a gasket die is arranged at the end portion of the bottom of a vertical plate, and the edge of the gasket die is hinged to the bottom of the vertical plate; and a plastic nozzle is arranged on one side of the vertical plate, and an ejecting mechanism is arranged on the other side of the vertical plate. The cooling device comprises a cooling water groove formed in a winding manner. The cooling water groove is internally provided with a water outlet and a water inlet which communicate with each other through a circulation pipeline. Compared with the prior art, the rapid manufacturing device and the cooling device are used in cooperation, the gasket die is in a to-be-injected plastic state under the action of the elasticity of a torsional spring, and under the traction of a pull rope, the gasket die moves towards protrusions on a fixing ring after plastic injection; and the plastic gasket is thrown into the cooling water groove, and the plastic gasket is gradually collected from the tail end of the cooling water groove in a unified manner under constantly cyclic flushing driving of cooling liquid in the cooling water groove.

The invention relates to the technical field of lamps, and discloses a double-lamp-holder lamp which comprises a supporting base; a lighting part which comprises a first lighting part and a second lighting part, wherein the first lighting part and the second lighting part are rotationally connected through a rotating piece, the first lighting part comprises a first emitting surface, the second lighting part comprises a second emitting surface, and the second lighting part is rotationally connected with the supporting base; a power supply electrically connected with the lighting part; and a switch device arranged on the lighting part and / or the rotating part, used for sensing the relative rotation of the first lighting part and the second lighting part, and configured to control the lighting part to be extinguished when the first lighting part and the second lighting part relatively rotate to enable the projection area of the first emission surface to the second emission surface to be greater than a preset value. According to the double-lamp-holder lamp, multi-angle light emission of the lamp can be achieved by rotating the first lighting part and the second lighting part, when the projection area of the first emission face to the second emission face is larger than the preset value, the lighting parts are extinguished, and electric energy is saved.

The invention relates to the field of medical equipment, in particular to a bolus injection device. The bolus injection device comprises a first needle cylinder, a second needle cylinder and a push rod, wherein the second needle cylinder is arranged in the first needle cylinder; the push rod is arranged in the second needle cylinder; a needle base of the first needle cylinder is used for installing a needle; a first plunger is installed on a needle base of the second needle cylinder; a second plunger is installed at the bottom of the push rod; the second needle cylinder is tightly attached to the inner wall of the first needle cylinder through the first plunger; the push rod is tightly attached to the inner wall of the second needle cylinder through the second plunger; a through hole is formed in the middle of the first plunger and allows the needle base of the second needle cylinder to be led in; a one-way valve is installed in the through hole; and an annular protruding part with a diameter smaller than the diameter of the through hole is arranged at the bottom of the first needle cylinder and serves as a control switch of the one-way valve. The bolus injection device is ingenious in design, reasonable in structure and low in manufacturing cost, bolus injection can be achieved, and the residual amount of the injector is reduced; and time for workers to receive radioactive medicine radiation is shortened, and remarkable popularization significance is achieved.

The invention relates to an injector. The injector comprises a tube body, the fixing sleeve is vertically arranged in the pipe body and is fixed relative to the pipe body; the injection assembly comprises a needle tube, a piston, a piston rod and a needle head, the needle tube is fixedly arranged in the fixing sleeve in a penetrating mode, the piston is arranged in the needle tube and can move up and down relative to the needle tube, the lower end of the piston rod is inserted in the needle tube and can abut against the upper end face of the piston, the piston rod can move up and down along the needle tube, and the needle head is connected with the lower end of the needle tube and extends out of the tube body; the movable sleeve is arranged between the fixed sleeve and the tube body, the lower end of the movable sleeve can extend out of the tube body and hide the needle inside, and the movable sleeve moves upwards relative to the fixed sleeve when being pressed; the elastic piece acts on the movable sleeve, so that the movable sleeve always keeps a trend of moving downwards; the handle sleeve is sleeved at the upper end of the pipe body and can move up and down relative to the pipe body, and the handle sleeve is connected with the upper end of the piston rod. The injector is convenient to use, and the injection speed and the injection amount can be controlled.

Light-guiding panel, backlight module, and a display device are provided. An exemplary light-guiding panel includes a light-guiding body and a light diffusing-transmitting layer over the light-guiding body. The light-guiding body is configured to reflect incident light beams on a first side surface of the light-guiding body, thereby providing reflected light beams to the light diffusing-transmitting layer. The light diffusing-transmitting layer is capable of diffusing and transmitting the reflected light beams.

The invention discloses a quincunx cam plunger pump and a flow injection analysis device. The pump comprises a pump housing, a motor, a first transverse rotating shaft, a quincunx cam, a balance wheel and a pump head shell; an installation side plate is fixed to one side of pump housing; the motor is fixed on the installation side plate; the two ends of the first transverse rotating shaft are rotationally connected to the two side walls of the pump shell, and the first transverse rotating shaft penetrates through the installation side plate and is fixedly connected with the output end of the motor through a transmission mechanism; the quincunx cam fixedly sleeves the first transverse rotating shaft; one side of the top of the balance wheel is in contact with the quincunx cam; and the pump head shell is fixed to a front panel of the pump housing in a penetrating mode, a pump cavity is formed in the pump head shell, a push rod is arranged in the pump head shell, the other side of the top of the balance wheel is in contact with the head end of the push rod, the pump cavity is connected with an inlet one-way valve and an outlet one-way valve, and the push rod is sleeved with a reset spring. The quincunx cam plunger pump can completely replace a traditional peristaltic pump in a flow injection analysis device, so that the problems that a pump pipe of the peristaltic pump is aged, the service life of the pump pipe is short, the flow is unstable, and even the flow is cut off are solved.

The invention relates to the technical field of bearing pedestals, in particular to a low-abrasion bearing pedestal which comprises a bearing base, a sealing mechanism is installed on the bearing base, and two oil injection mechanisms for injecting oil to lubricate the inner side of a bearing are installed on the bearing base in a back-to-back mode. Two fixing mechanisms for fixing the oil injection mechanisms are mounted on the bearing base, an extrusion mechanism for pushing the two oil injection mechanisms is mounted on the bearing base, and two power mechanisms for conveniently taking out the two oil injection mechanisms are mounted on the bearing base. The two oil injection mechanisms for lubricating the inner side of the bearing on the bearing base are installed on the bearing base in a back-to-back mode, when the inner side of the bearing on the bearing base needs to be lubricated, the oil injection mechanisms abut against each other by sliding the extrusion mechanism, and after the oil injection mechanisms abut against each other, butter can be extruded to the inner side of the bearing on the bearing base. When the bearing works, the butter can be annularly smeared, the lubricating speed is high, no top cover needs to be disassembled, and operation is easy.

The invention relates to the technical field of medical instruments, specifically to a medical puncture biopsy device. The medical puncture biopsy device comprises an outer tube, an inner tube and a puncture needle, wherein the inner tube is inserted into the outer tube; a negative-pressure channel is formed between the tail parts of the inner tube and the outer tube; a negative pressure opening communicating with the negative pressure channel is arranged on the outer wall of the outer tube; the puncture needle is provided with a puncture end and a connector located at one end away from the puncture end; the connector is in threaded connection with the inner wall of the inner tube; the inner tube and the outer tube are respectively provided with a biological gel inlet; the inner tube can move to a first position and a second position in the axial direction of the outer tube; when the inner tube is located at the first position, the tail end of the inner tube and the puncture end of thepuncture needle are both located in the outer tube, and a gap is formed between the tail ends of the inner tube and the outer tube in an axial direction; and when the inner tube is located at the second position, the end surfaces of the tail ends of the outer tube and the inner tube are flush, and a first biogel inlet communicates with a second biogel inlet, and the puncture needle extends out ofthe tail end opening of the outer tube. According to the invention, tumor cells can be prevented from leaking out of a puncture part in puncture biopsy.

The invention relates to the technical field of medical instruments. The insulin injection auxiliary device comprises an installation frame, an injection needle and an injection propeller, wherein the injection needle and the injection propeller are arranged at the two ends of the installation frame respectively. The mounting frame comprises a tail plate and a head plate, and the head plate and the tail plate are connected through an elastic tensioning assembly; the injection needle is mounted on a needle seat on one side of the head plate far away from the tail plate; the injection propeller is mounted on one side of the tail plate far away from the head plate; a plurality of first positioning seats and second positioning seats are respectively arranged on the opposite plate surfaces of the head plate and the tail plate, and the first positioning seats and the second positioning seats are arranged in pairs. A plurality of insulin tubes containing different types of insulin injections can be arranged on the mounting rack, so that the insulin injection device is very convenient to use. The insulin tube can be conveniently clamped and detached, the insulin tube can be loaded on the head plate and the tail plate by pulling the head plate and the tail plate open, and the insulin tube clamping device is stable in installation and convenient to replace.

The invention discloses an inferior vena cava filter recovery device and method, wherein the recovery device comprises, includes a recovery unit and a capture unit, the recovery unit includes a sheathcore tube, a retrieval catheter and a retrieval sheath, the proximal end of the recovery catheter is provided with a first locking member, the proximal end of the recovery sheath tube is provided with a second locking member, the distal end of the sheath core tube is provided with a through hole for circulating contrast agent. The catching unit comprises a handle located at the proximal end, a snare located at the distal end, a guide wire assembly respectively connected with the snare and the handle, and a sleeve sleeved with the guide wire assembly, the sleeve penetrating the recovery catheter, the guide wire assembly comprising a straight guide wire portion connected with the handle, and a flexible guide wire portion connected with the snare. At least that invention has the advantage that the recovering end of the inferior vena cava filter is easily captured, the filter can be safely withdrawn from the recovering sheath tube, and the structure is optimize.

The invention discloses a device using magnesium slag as desulfurizing agents in a fluidized bed boiler. The device comprises a boiler, a magnesium slag bin, a flue, a smoke recirculation fan and a venturi mixer; the flue is arranged at the tail of the boiler; a circulating wind pipe is leaded out from the flue, and communicates to a slag spraying port of the boiler; the smoke recirculation fan isarranged on the circulating wind pipe; the venturi mixer is arranged on the circulating wind pipe in the downstream position of the smoke recirculation fan; and the magnesium slag bin communicates toa powder inlet at a throat part of the venturi mixer through a pipeline. Through the technical scheme, the reutilization of circulating smoke in the fluidized bed boiler device can be realized, and the problem of instable bed temperature caused by lower temperature of the desulfurizing agents is prevented.