231 results about "Needle Free Injection" patented technology

The invention relates to the technical field of needleless injectors, in particular to a portable needleless injector, which comprises a mounting unit, an injection unit and a control unit, the force storage unit comprises a moving rod arranged in the mounting cavity in a sliding manner, a first elastic piece arranged between the moving rod and the mounting cavity, and a driving assembly arranged in the mounting cavity and matched with the moving rod; the triggering unit comprises a limiting assembly matched with the moving rod; and the needle head unit comprises a needle tube communicated with the mounting cavity and a piston rod arranged in the needle tube in a sliding manner. According to the portable needleless injector, the moving rod can be controlled by the driving assembly to extrude the first elastic piece and then is limited by the limiting assembly to move, the effect of force storage is achieved, then the moving rod is ejected out under the elastic force of the first elastic piece by making contact with the limitation of the moving rod, and meanwhile the moving rod can control the piston rod to move to extrude and spray out liquid medicine in the needle tube.

The utility model belongs to the technical field of Tibetan pig disease prevention and treatment, particularly relates to a vaccine injector for Tibetan pig disease prevention and treatment, and aims to solve the problems that when vaccine injection is carried out on Tibetan pigs in the same batch of growth stage, workers often hold injectors with hands to go to pigsties to inject the Tibetan pigs one by one, piglets missing vaccine injection are prone to occurring, and potential risks exist. According to the scheme, the device comprises an electric conveying belt, the electric conveying belt is arranged on a channel between two adjacent pigsties, and two guardrails for preventing piglets from falling off are symmetrically arranged above the electric conveying belt. When the piglet vaccine injection device is used, through the design of the electric conveying belt and the guardrails, a worker can conveniently inject vaccines to piglets one by one, and therefore the situation that the piglets are missed to be vaccinated is avoided; through the design of the adjusting assembly, the distance between the guardrails can be adjusted according to the body types of piglets of different growth batches; through the design of the needle-free injection assembly, stress reaction and cross infection risks caused by traditional needle puncture are avoided.

The invention relates to the technical field of medical instruments, in particular to an electromagnetic needleless injector which comprises a shell, a nozzle assembly, a liquid storage assembly, a driving assembly and an intelligent control system. Firstly, a series excitation linear motor is adopted to replace a traditional needleless injector driven by a spring, and the problems that driving force is limited and elasticity is attenuated due to the spring are effectively solved. According to the series excitation linear motor, through excitation magnetic field coupling between the stator coil and the rotor coil in the motor, the rotor directly drives the plunger rod to do linear motion in the axial direction so as to complete injection, the structure is simpler, the direct drive type connection structure is adopted, the stability is higher, and force transmission is more accurate. In addition, an intelligent control system integrated in the needleless injector enables the needleless injector to be more intelligent, control precision is higher, operation is more convenient, the needleless injector can be wirelessly connected with a breeding cloud management system, rapid, accurate and painless injection of live pigs and other animals can be achieved, and breeding efficiency and injection safety are improved.

The present invention relates to a needleless syringe comprising a body part and a nozzle part, wherein the body unit provides a pulse-type pressure of a predetermined magnitude to a drug accommodated in a drug accommodation unit in the nozzle unit, and the nozzle unit discharges, in the form of a microjet through a nozzle hole of the nozzle unit, the drug accommodated in the drug accommodation unit in response to the pulse-type pressure provided by the body unit. A nozzle unit-side connection unit in the nozzle unit, which is mounted on a connection unit of the body unit, includes an information unit configured to store, as tag information, information on equipment parameters for the operation of the needleless syringe. The body unit is provided with: a sensor capable of recognizing the information unit provided in the nozzle unit; and a control unit that automatically sets the equipment parameters for controlling the operation of the needleless syringe, on the basis of the tag information recognized by the sensor.

The utility model provides a needleless injector which comprises a shell, an injection driving mechanism, a liquid inlet device, a liquid storage device and a spray head, the injection driving mechanism is connected to the liquid storage device and used for sucking a reagent into the liquid storage device through the liquid inlet device and spraying the reagent in the liquid storage device out through the spray head; the nozzle comprises a nozzle body, a nozzle one-way valve and a nozzle, and the nozzle is detachably connected to the nozzle body; wherein the nozzle body is provided with a containing cavity and a reagent inlet which are communicated, and the nozzle one-way valve is arranged in the containing cavity; the sprayer one-way valve comprises a one-way valve element and an elastic piece, the one-way valve element is of a cavity structure, the elastic piece is arranged in the cavity structure, a reagent outlet is formed in the side wall of the one-way valve element, and the reagent outlet is communicated with the cavity structure; the nozzle is provided with at least one jet hole, and the cavity structure is communicated with the jet hole. The needleless injector effectively solves the problems that a needleless injector is single in application scene, short in service life, low in injection frequency and the like.

The present invention provides an auxiliary device or system for a needleless syringe that uses the force of an elastic body to eject the injectable solution from the ampoule, and that can automatically perform the charging of the elastic body and the loading of the ampoule. [Solution] The auxiliary device 1 or system for the needleless syringe includes a holding unit 3 for holding the needleless syringe 10, an elastic body energy storage unit 5 for storing energy in the elastic body of the needleless syringe, an ampoule loading unit 6 for loading a pre-filled ampoule into the needleless syringe, a drive unit 7 for relatively moving the holding unit, and a control unit 8 for controlling the operation of the drive unit, and sequentially moves the needleless syringe to a position where the elastic body can be stored and to a position where the pre-filled ampoule can be loaded.

The utility model discloses an electric needleless injector for livestock. The electric needleless injector comprises a shell, a battery, a nozzle assembly, a liquid inlet pipe assembly, a liquid storage cavity, an adapter block, a motor, a rotating worm, a worm position measuring plate, a compression spring, a spring connecting rod, a piston fixing rod, a transmission bearing, a spring pressing plate, a buffering rubber mat, a liquid medicine push rod and a Hall sensor. The utility model provides three more optimized functional structures: (1) the trigger device is simpler and more practical: the trigger device can be triggered by only pressing the head, the trigger device can be pressed on an animal body when in use, and liquid flying caused by the fact that the trigger device is not attached to the epidermis can be prevented; (2) the liquid medicine, the medicine bottle and the like are more convenient to replace: the Luer taper of the medicine bag is directly sleeved during use, or the medicine tube is directly sleeved on the Luer taper when the self-made medicine bottle and the medicine cylinder are used; and (3) the power structure is more stable and simpler: the motor drives the worm to rotate and then drives the straight connecting rod to operate.

1. The name of the design product: syringe auxiliary propulsion gun. 2. The use of the design product: needle-free syringe for drug injection. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The bottom of the design product is the part that is not easy to see or cannot be seen during use, and the top view is omitted.

This invention discloses a method for calculating needle-free injection depth based on energy analysis, comprising the following steps: Step 1, obtaining the jet process parameters during a single needle-free injection, and calculating the initial peak jet power and the total jet energy of this injection; Step 2, calculating the initial injection depth based on the initial peak jet power using a preset initial depth linear model; Step 3, calculating the diffusion depth increment based on the total jet energy using a preset diffusion depth linear model; Step 4, calculating the predicted maximum injection depth based on the sum of the initial injection depth and the diffusion depth increment. This invention decomposes the injection process into two stages: initial impact and subsequent diffusion, and establishes linear prediction models for each stage based on the jet energy parameters, thereby achieving reliable and accurate calculation and prediction of the injection depth for large-volume needle-free injections.

The invention relates to a firing device for a needleless injector and a needleless injection system. The needleless injector includes an injection chamber housing and a piston assembly. The launch device includes a support housing, a power push rod, and a dose adjustment device. The support housing is configured to be connectable to the injection chamber housing. The power push rod is configured to be connectable to the piston assembly and movable relative to the support housing. The dose adjusting device comprises a dose adjusting disc and a dose adjusting column, the dose adjusting disc is rotatably connected to the supporting shell, a plurality of dose grooves are formed in the dose adjusting disc, the depths of the dose grooves are different from one another, and the dose adjusting column is arranged on the power push rod and can move along with the power push rod. The dose adjusting column can change the movement stroke of the power push rod by being matched with different dose grooves. According to the needleless injection system of the scheme, a user can conveniently achieve injection of a preset dose.

The utility model provides a disposable needleless injection needle which comprises a pressure source instrument connecting part, a liquid medicine injection part, a liquid medicine storage part and a liquid medicine injection part, and a screw sequentially penetrates through a screw hole of the liquid medicine injection part and a screw hole of the liquid medicine storage part and finally enters a threaded hole of the pressure source instrument connecting part to achieve overall fixation. The side wall of the liquid medicine injection part and the side wall of the liquid medicine storage part are fixed through screws, the pressure source instrument connecting part is connected with an external micro-jet injector to obtain a pressure source, and the liquid medicine injection part is connected with an external injection tube to obtain liquid medicine. And the continuous broken injection of the liquid medicine is realized. The utility model has the beneficial effects that a trace amount of medicine can be quickly and accurately injected into the skin surface layer, so that pain and recovery time are reduced; under the condition that the needle head is not replaced, liquid medicine can be added at any time, and convenience and rapidness are achieved.

The utility model relates to a needleless injector device capable of preventing injection shaking and conducting injection in batches, which belongs to the field of needleless injectors and comprises a reset motor, a reset screw rod, a reset block, a sliding block, a trigger, a sliding block positioning groove, a driving hammer, a driving hammer spring, an injection motor, an injection screw rod, a machine frame and a sliding sleeve. The reset screw is in threaded fit with a reset block, one face of the output end of the reset motor is installed on one side of the rack, the sliding block is located in the rack, the sliding block positioning groove is formed in the end of one side of the sliding block, the trigger is installed on the rack, the sliding sleeve is installed in the rack, the driving hammer is installed in the rack, and the head of the driving hammer is installed in the sliding sleeve in a sliding mode. The driving hammer spring is installed at the tail of the driving hammer, the injection motor is fixed in the rack, the output end of the injection motor is connected with the injection screw rod, and by arranging the pushing motor and the injection screw rod, the problems that multiple times of injection cannot be achieved, and medicine leakage or injection position deviation is caused by shaking during injection are solved.

The invention discloses a pressure-adjustable needleless injector based on double springs, and belongs to the technical field of needleless injectors.The technical scheme is that the pressure-adjustable needleless injector comprises an injection head shell, an injection cavity is formed in the injection head shell, and an open hole communicating the outside with the injection cavity is formed in the front end of the injection head shell; an injection push rod extending into the injection cavity is arranged at the rear end of the injection head shell; a transmission assembly is arranged between the driving mechanism and the injection push rod, the transmission assembly comprises a first barrel and a second barrel which are parallel to each other, transmission push rods are arranged in the first barrel and the second barrel in a sliding mode, the two transmission push rods are sleeved with percussion springs, and the two percussion springs are consistent in parameter but different in initial compression amount; the switching connection between the two transmission push rods and the injection push rod is realized by the two transmission push rods through a detachable switching piece; switching connection between the two transmission push rods and the driving mechanism is achieved through detachable connecting pieces. The pressure-adjustable needleless injector has the beneficial effect that the pressure-adjustable needleless injector based on the double springs is provided.

The utility model provides a needleless injector main body and a needleless injector. The needleless injector body includes: a base; the lens is arranged on the side surface of the base; an upper cover mounted on a side surface of the base and provided with a lens receiving hole to receive and expose the lens; wherein the lens comprises a main body and an installation base which is arranged below the main body and extends outwards in the radial direction to exceed the main body, the upper cover comprises a fixing edge which protrudes downwards from the lens containing hole, and when the upper cover is installed on the base, the fixing edge abuts against the installation base.

1. Name of the product of this design: Tip of a needle-free syringe for medication. 2. Purpose of this design product: to be installed at the front end of the handpiece of a needle-free syringe for medication. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model belongs to the technical field of syringes, and particularly relates to a disposable needleless syringe piston rod, a medicine tube and a needleless syringe, the piston rod comprises a rod body formed by extending in the axial direction, the front end of the rod body in the axial direction is an installation part used for installing a piston, and the rear end of the rod body protrudes in the radial direction to form a flange; a rigid protrusion used for abutting against the injection tube body is arranged at the front end of the flange, and when the rigid protrusion abuts against the rear end face of the injection tube body, a safety distance L exists between the front end of the piston and the front end of the injection tube body. When the rigid protrusion on the flange abuts against the rear end of the injection tube body, the front end of the piston does not make contact with the front end of the injection tube body, the situation that the front end of the injection tube body is broken due to impact can be avoided, and the service life of the injector is prolonged.

1. The name of the design product: injection end shell for needleless injection device. 2. The use of the design product: for needleless injection device, which cooperates with medicine tube to suck and inject medicine. 3. The design points of the design product: in the shape of the product. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other circumstances that need to be explained: the reference figure is the state after the needleless injection device is pressurized, in which state the gap between the injection end shell and the control end shell of the needleless injection device changes, the button at the end of the control end shell pops up, the cap at the end of the injection end shell is removed, and the medicine tube is inserted on the needleless injection device. 6. Other circumstances that need to be explained: this design patent application is a partial design patent application, and the area covered by the green block in the design picture is the part to be protected by the partial design patent.

The utility model discloses a rotatable handle of a needleless injector, which relates to the technical field of needleless injectors, and adopts the technical scheme that the rotatable handle comprises a needleless injector main body and further comprises a fixing ring fixedly arranged on the needleless injector main body; the movable ring is arranged on the outer side of the fixed ring and can freely rotate relative to the fixed ring; and the holding arm is rotationally arranged on the movable ring. According to the needleless injector, the holding arm is rotationally arranged on the movable ring, and meanwhile, the movable ring is rotationally arranged on the fixed ring, so that the angle of the holding arm can be adjusted in the horizontal direction and the vertical direction relative to the needleless injector main body, and a patient can conveniently adjust a holding mode suitable for the patient to complete independent injection.

The present disclosure provides a needle-free injector, which comprises a drug liquid chamber, a semi-spherical diaphragm and a driving liquid chamber; the semi-spherical diaphragm is clamped between the drug liquid chamber and the driving liquid chamber; the semi-spherical diaphragm is used to isolate the drug in the drug liquid chamber and the driving liquid in the driving liquid chamber, and is also used to transmit the driving force generated by the driving liquid chamber to the drug liquid chamber; the drug liquid chamber is used to store the drug to be injected; and the driving liquid chamber is used to store the driving liquid to provide pressure for the needle-free injector. The present disclosure isolates the drug in the drug liquid chamber and the driving liquid in the driving liquid chamber through the semi-spherical diaphragm, thereby preventing the risk of mixed contamination of the drug and the driving liquid. Meanwhile, when the driving force is generated by ionization of the driving liquid, the semi-spherical diaphragm is subjected to repeated stress more uniformly than the ordinary diaphragm, thereby reducing the risk of cracking of the diaphragm due to repeated stress deformation and increasing the service life of the diaphragm.

An intravitreal drug delivery tool (50) for positioning a needleless syringe for injecting a substance to be injected into the vitreous body of an eyeball without passing through an injection needle, the intravitreal drug delivery tool (50) being provided with: a guide (54) at least a part of which is formed in a shape corresponding to the outer edge of the cornea in the eyeball; and a positioning part (51) that is connected to the guide (54) and the needleless syringe, and that positions the needleless syringe when the guide (54) is disposed so as to be aligned with the outer edge of the cornea. The positioning unit (51) positions an injection port (77) from which the injection target substance is injected in the needleless injector at a position separated from the outer edge of the cornea toward the rear of the eyeball by a predetermined distance.

The utility model relates to a needleless injector main part and needleless injector, wherein, the needleless injector main part includes first component and the second component that can with first component opposite movement, wherein, the needleless injector main part still includes the first auxiliary device for providing visual feedback, the first auxiliary device includes: at least one dose mark, at least one dose mark sets up on the outer surface of second component, first opening, first opening sets up on first component and visual enhancement element, visual enhancement element is fixed on first component and is positioned to align first opening, wherein, in the process of first component and second component relative motion, at least one dose mark aligns first opening in turn and is optically magnified by visual enhancement element. The needleless injector includes injection head and the needleless injector main part.

The invention discloses a needleless injection device for tumor drug injection and an injection method of the needleless injection device. The needleless injection device comprises an injection mechanism and an atomization mechanism arranged below the injection mechanism. The injection mechanism comprises an outer shell, a pushing assembly arranged on the inner side of the outer shell and a plurality of power sources arranged at the bottom of the outer shell. The power source is mainly used for providing power for the device. The pushing assembly is mainly used for pushing high-speed injection of medicine. The atomization mechanism comprises a medicine kettle, an atomization piece fixedly connected to the interior of the medicine kettle and a negative pressure piece arranged on one side of the atomization piece. The medicine pot is in threaded connection with the bottom of the outer shell, the negative-pressure part is arranged on the atomization part, and the bottom of the negative-pressure part is fixedly connected with a micromotor; therefore, the safety, the convenience and the comfort degree of medicine delivery are improved.

1. The name of the design product: needleless injector. 2. The use of the design product: needleless injector for injecting liquid medicine. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

An elastic membrane for transmitting driving pressure of a needleless syringe, and the needleless syringe using same are disclosed. The elastic membrane (500) for transmitting pressure comprises: a body (510) which has elasticity, and which is provided between a driving chamber (402) and a driven chamber (202) so as to partition the driving chamber (402) from the driven chamber (202) in a sealed state; a driven protrusion part (520) in which a pressure-side cavity (522) opened to the driving chamber (402) is formed, and which protrudes from the central portion of the body (510) toward the driven chamber (202); and a driving protrusion part (530) which is spaced a predetermined distance from the edge of the body (510) and which protrudes toward the driving chamber (402), wherein, when a pressure (F) is applied from the driving chamber (402) such that the driving protrusion part (530) is pressed toward the driven chamber (202), the edge of the body (510) facing the driven chamber (202) becomes a hinge point (H), and thus the driven protrusion part (520) transmits the pressure while deformed toward the driven chamber (202).

1. Name of the product of this design: Needle-free syringe for medication. 2. Purpose of this design product: Used to place medicine at the end nozzle of a needle-free syringe and inject the medicine into the body after contacting the skin. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

1. The name of the design product: medicine taking interface for needleless injector (SJ-01 type). 2. The use of the design product: for taking medicine of needleless injector. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. The name of this design product: needle-free syringe. 2. Purpose of this design product: This design product is used to provide a medical injection that does not use a needle to pierce the skin. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of needleless injectors, in particular to a connecting structure of a piston rod and a push rod and a needleless injector thereof, the connecting structure comprises the piston rod and the push rod, the piston rod comprises a first rod body and a first clamping part located at the end of the first rod body, and the first clamping part comprises a plurality of clamping jaws. The push rod comprises a second rod body and a second clamping part located at the end of the second rod body, the second clamping part comprises an inner limiting body and an outer limiting body located on the periphery of the inner limiting body, and an annular limiting cavity allowing the clamping jaws to be clamped in so as to fix the clamping jaws is formed between the inner limiting body and the outer limiting body; according to the utility model, the inner limiting body and the outer limiting body on the push rod are utilized to form the annular limiting cavity in which the clamping jaws are clamped to fix the clamping jaws, and the outer limiting body surrounds the outer sides of the plurality of clamping jaws to limit the outward bending degree of the clamping jaws, so that the clamping jaws are prevented from being separated from the push rod; the inner limiting bodies are supported on the inner sides of the clamping jaws to limit the inward bending degree of the clamping jaws, so that the breaking phenomenon caused by excessive bending of the clamping jaws is avoided.

The utility model provides a needleless injector main body and a needleless injector. The needleless injector body includes a locking mechanism for the injection actuator, the locking mechanism including: a pressing member provided on a side of the base; the blocking component comprises at least one vertical arm, and each vertical arm comprises a groove; the pivot component is arranged between the pressing component and the blocking component and comprises a pivot shaft and a first pivot arm and a second pivot arm which extend on the two sides of the pivot shaft, the first pivot arm is connected with the pressing component, the second pivot arm is connected with the blocking component, the injection actuator comprises at least one stop protrusion, and in the locking state, the stop protrusion is connected with the pressing component. During unlocking, the pressing component is pressed to drive the first pivoting arm to move downwards, the second pivoting arm moves upwards and drives the blocking component to move upwards, so that the grooves are aligned with the corresponding locking protrusions, and the corresponding locking protrusions are allowed to pass through. Thereby allowing the injection actuator to move from the non-actuated position to the actuated position.