471 results about "Injections needle" patented technology

The invention relates to the technical field of egg inoculation, in particular to an egg inoculation machine capable of achieving safe inoculation and an operation method.The egg inoculation machine comprises a conveying unit, an optical detection unit, a mechanical arm assembly and an inoculation assembly; the conveying unit is used for conveying eggs, the position of an air chamber is recognized through the optical detection unit, an injection point is determined, the inoculation assembly is installed on the mechanical arm assembly, and the mechanical arm assembly drives the inoculation assembly to conduct inoculation along the injection point; according to the egg inoculation machine, after punching is completed, the injection needle tube is directly inserted into an egg along a punched hole for safe inoculation, the requirement for visual positioning of the hole can be reduced, a mechanical arm assembly low in precision can be used, and the device cost is reduced.

The invention provides an automatic injection device which comprises a needle bin system, a needle head system, a needle head system, a needle head system, a needle head system, a needle head system and a needle head system, the driving system is detachably connected with the needle bin system, the driving system is provided with a first-stage driving mechanism and a second-stage driving mechanism, the first-stage driving mechanism is used for driving an injection needle of the pre-filling injector to pierce an injection part, and the second-stage driving mechanism is used for driving an injection push rod of the pre-filling injector to move; and the liquid medicine is injected into the injection part through the injection needle. The automatic injection device can be repeatedly used, more importantly, the automatic injection device is further provided with the first-stage driving mechanism and the second-stage driving mechanism, the first-stage driving mechanism is used for puncturing the injection needle on the pre-filling injector into the body by a certain depth, and then the second-stage driving mechanism drives the injection push rod of the pre-filling injector to move; all the liquid medicine is injected into the injection part, time sequence control is achieved, and therefore the liquid medicine injection effect can be ensured.

An auto-injector for administering a dose of a liquid medicament includes an elongate tubular case and a carrier subassembly including a tubular carrier slidably arranged inside the case. The carrier is adapted to contain a syringe with a hollow injection needle, a drive spring, and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier, wherein the drive spring acts between the carrier and the plunger, wherein the plunger, in an initial state, is locked to the carrier by a ramped engagement to the carrier and by being prevented from rotating out of this ramped engagement, depending on a relative longitudinal position of the carrier in the case, and wherein the plunger is arranged to be released for rotating out of the ramped engagement.

The utility model relates to a tree disease and insect pest treatment device which comprises a rack and a pesticide injection unit installed on the rack, and the pesticide injection unit comprises an obliquely-arranged supporting track, a first driving device driving the supporting track to rotate, a pesticide injection assembly and a drilling assembly, and the pesticide injection assembly and the drilling assembly are installed on the supporting track; the medicine injection assembly comprises a medicine injection needle tube, and the medicine injection needle tube is parallel to the axis of the supporting rail in the length direction. The drilling assembly comprises a drill bit, a drilling motor and a first sliding base which is fixedly connected with the drilling motor and moves in the length direction of the supporting rail. The medicine injection assembly and the drilling assembly are arranged on the obliquely-arranged supporting track, position switching of a drill bit and a medicine injection needle tube is completed by rotating the supporting track, oblique drilling is achieved, the drilling machine and the medicine injection needle tube do not need to be manually held for drilling and medicine injection operation, the labor intensity is greatly reduced, and the working efficiency is improved. And drilling and medicine injection are quickly linked through the rotary supporting track, so that the drilling and medicine injection efficiency is greatly improved.

The invention belongs to the technical field of pharmaceutical equipment, and particularly relates to a needle pre-filling continuous production process for plastic medicine bottles. The process comprises the following steps of (1) tube blank extrusion, (2) tube blank transfer, (3) needle adding and bottle making, (4) filling, (5) injector piston adding and sealing, and (6) blanking. The needle pre-filling continuous production process for the plastic medicine bottles is a whole systematic process and covers a process from raw material conveying to final product conveying, compared with a traditional BFS process, a packaging process is characterized in that an injection needle adding station and an injector piston adding station are added and A-level air shower protection is added in a whole transferring process, functions of equipment are greatly increased, the quality of produced products is higher, the sterile safety of the products is better, and the problem of pollution possibly existing in a process from production to injection of medicines is fundamentally solved.

The utility model discloses an indocyanine green precise puncture and injection device under a laparoscope, which belongs to the field of medical instruments and comprises a needle tube outer cylinder, a middle propelling device arranged in the needle tube outer cylinder, an internal propelling device arranged in the middle propelling device, a negative pressure drainage piece arranged at the head of the needle tube outer cylinder, and a negative pressure drainage piece arranged at the tail of the needle tube outer cylinder. An outer hose is arranged at the other end of the negative pressure drainage piece, a suction cup head is arranged at the other end of the outer hose, an inner hose is arranged at the head of the middle propelling device, the inner hose penetrates through the negative pressure drainage piece and then extends into the outer hose, an injection needle is arranged at the head of the inner hose, and an electrocoagulation wire is arranged in the suction cup head and connected with the injection needle. According to the utility model, an operator can accurately complete puncture and injection operations under a laparoscope; the problem that when indocyanine green is injected, a needle is withdrawn and after the needle is withdrawn, the medicament overflows to pollute the tissue surface is solved; electric coagulation hemostasis can be implemented in the whole operation process; and the medicine injection dosage can be controlled more accurately.

The invention provides a soil reducing inorganic sulfide continuous extraction device and a use method thereof. The extraction device comprises a brown reaction bottle, a first sealing bottle plug is arranged at a bottle opening of the brown reaction bottle, and a gas replacement needle, a sample injection needle and a liquid replacement needle are arranged on the first sealing bottle plug; the reagent deoxidizing bottle is connected with the sample injection needle through a first liquid flow divider and a first multi-channel injection pump; a second sealing bottle plug is arranged at a bottle opening of the reagent deoxidizing bottle, a first needle tube, a second needle tube and a third needle tube are respectively arranged on the second sealing bottle plug, a needle seat of the second needle tube is connected with a second two-way valve, the second two-way valve is connected with a first liquid diverter, the first liquid diverter is connected with a first multi-channel injection pump, and the second liquid diverter is connected with a second multi-channel injection pump. A channel of the first multi-channel injection pump is connected with an eighth two-way valve on the sample injection needle seat; and the absorption liquid deoxidizing bottle is connected with the liquid changing needle through a second liquid diverter and a second multi-channel injection pump. The detection efficiency and stability of the soil reducing inorganic sulfide are improved.

An apparatus for the automated filling of cartridges of e-vapor devices may include a filling drum configured to receive at least one cartridge of an e-vapor device. The apparatus may additionally include a needle assembly including at least one hypodermic needle. The needle assembly is configured to transition between a lowered state and a raised state. The lowered state is where the hypodermic needle is moved down into the cartridge, while the raised state is where the hypodermic needle is lifted up and away from the cartridge. The apparatus may further include a pump assembly configured to pump a pre-vapor formulation into the cartridge when the needle assembly is in the lowered state. The pump assembly may include a variable amplitude cam system configured to adjust an amount of the pre-vapor formulation for pumping to the cartridge without changing start and stop times for the pumping.

The utility model relates to the field of liquid-based cell pelleters, in particular to a liquid suction and injection mechanism, which is provided with at least two mounting positions and a mounting part, at least one mounting position is provided with a mounting groove, the mounting part is provided with a liquid suction and injection needle kit, the tail end of the liquid suction and injection needle kit is provided with a liquid suction and injection port, and the mounting part is arranged in the mounting groove and can be adjusted in the mounting groove. Adjustment comprises horizontal movement and angle adjustment, and the angle adjustment enables the liquid suction and injection openings of the liquid suction and injection needle suites on the multiple installation positions to be located on the same straight line. The structure of the mounting groove is adopted, the mounting piece arranged in the mounting groove can be freely adjusted in the mounting groove through the adjusting piece, the mounting angle of the liquid suction and injection mechanism can be conveniently adjusted, the liquid suction and injection openings of the liquid suction and injection pipe are located on the same straight line, and waste liquid can be conveniently and completely sucked; meanwhile, the position of each liquid suction and injection mechanism can be conveniently adjusted to be matched with the position of the disposable pipette tip, and the insertion success rate of the disposable pipette tip is increased.

The utility model provides an intramedullary nail device achieving mechanical enhancement through photocuring, and belongs to the technical field of orthopedic medical treatment. Comprising an expandable balloon and an introduction sheath sleeve, the expandable balloon is of a long-strip cylindrical structure, an injection cavity is formed in the expandable balloon, and an injection opening is formed in the end of the expandable balloon; and the introduction sheath is wound and wrapped outside the expandable balloon. And a micro sheath is adaptively mounted at an injection port of the expandable balloon. The micro sheath is in communication with the expandable balloon. And an injection needle tube is arranged on the micro sheath. And a positioning guide wire penetrates into the micro sheath. And the positioning guide wire penetrates through the injection port and enters the interior of the expandable balloon. According to the intramedullary nail, due to the arrangement of the expandable balloon, operation steps are optimized, operation efficiency is improved, the photocuring process is easy to control, operation of a doctor is facilitated, and the intramedullary nail after photocuring can show higher strength when being stressed, so that deformation and displacement of a fracture part are more effectively resisted.

Provided is an intraocular injection assembly, comprising an injection needle base and an injection needle head. The injection needle base is internally provided with a plurality of first auxiliary channels, each extending in an axial direction of the injection needle base, which are in sequential communication with each other, and in a direction from a first end to a second end of the injection needle base, the diameters of the plurality of first auxiliary channels sequentially decrease, and the plurality of first auxiliary channels cooperate to form a first injection channel. The injection needle head is internally provided with at least two second auxiliary channels, each extending in an axial direction of the injection needle head, which are in sequential communication with each other, and in a direction from a first end to a second end of the injection needle head, the diameters of the second auxiliary channels sequentially decrease, and the second auxiliary channels cooperate to form a second injection channel. The injection needle head is connected to the second end of the injection needle base, and the first end of the injection needle base can be connected to an outlet of an external syringe, such that the second injection channel is in communication with the external syringe by means of the first injection channel.

The utility model relates to the technical field of medical detection devices, and discloses a glycosylated hemoglobin detection device, which comprises a sampling mechanism, a detection mechanism and a control mechanism, the sampling mechanism comprises an injection pump set, a sampling needle and a sampling valve, the sampling valve is a six-way sampling valve, the injection pump set is connected with a first port of the sampling valve, and the sampling needle is connected with a second port of the sampling valve; the separation mechanism comprises an eluent group, a mixer and a chromatographic separator, the eluent group is connected with a fifth port of the sample injection valve, the chromatographic separator is connected with a sixth port of the sample injection valve, and two ends of the mixer are connected with a third port and a fourth port of the sample injection valve; the inspection mechanism comprises a filter and an inspector, the filter is arranged between the mixer and the chromatographic separator, and the inspector is connected with the chromatographic separator. According to the utility model, the glycosylated hemoglobin can be rapidly and accurately detected through an accurate sample introduction and separation mechanism, so that the detection efficiency is improved. The automation degree of the detection process is high, the requirement for manual operation is reduced, and the possibility of human errors is reduced.

Autoinjector This autoinjector (1) comprises an outer body (2) extending along a longitudinal axis A and configured for receiving a medical container (100) having a barrel (101) defining a reservoir for containing a medical product, said barrel (101) having a distal end (102) provided with an injection needle (103) sealed by a needle shield (104), and an opened proximal end provided with a radial flange (106) A needle cover (8) is axially movable along the longitudinal axis A between an initial position, a retracted position, proximally located with respect to the initial position, and a safety position, distally located with respect to the retracted position, in which the needle cover (8) shields the injection needle (103). A holding ring (6) is arranged within the outer body (2) for supporting the medical container (100), the holding ring (6) being axially movable between an initial position and a pricking position. The holding ring (6) is axially guided by the needle cover (8).

The utility model provides an intraocular injection assembly, and relates to the technical field of medical instruments. The intraocular injection assembly comprises an injection needle seat and an injection needle; a plurality of first auxiliary channels which extend in the axial direction of the injection needle base and are sequentially communicated with one another are arranged in the injection needle base, the diameters of the first auxiliary channels are sequentially reduced in the direction from the first end to the second end of the injection needle base, and the first auxiliary channels are matched to form a first injection channel; at least two second auxiliary channels which extend in the axial direction of the injection needle and are sequentially communicated with one another are arranged in the injection needle, the diameters of the second auxiliary channels are sequentially reduced in the direction from the first end to the second end of the injection needle, and the second auxiliary channels are matched to form a second injection channel; the injection needle is connected to the second end of the injection needle base, and the first end of the injection needle base can be connected to an outlet of an external injector so that the second injection channel can be communicated with the external injector through the first injection channel. According to the intraocular injection assembly, the flowing speed is increased, the injection time is shortened, and the infection risk is reduced.

The present invention relates to an automatic injection device, and the automatic injection device, which administers a medicinal solution after inserting a multi-needle equipped with a plurality of injection needles into a skin at a vacuum pressure, includes: a suction motor which generates the vacuum pressure; a current detector which is provided in the suction motor to detect a current generated in the suction motor; a control unit which controls the vacuum pressure; and an air flow sensor which detects an extent in which air is sucked, wherein the vacuum pressure varies depending on the value of the current detected by the current detector and the amount of air of the air flow sensor.

The utility model relates to the field of dispensing and mixing devices, in particular to a dispensing device which comprises a fixed seat, a movable seat, a transverse driving assembly and a vertical driving assembly. Wherein the fixing seat is provided with a first clamping seat and a second clamping seat, the fixing seat is provided with a first position, and the transverse driving assembly drives the first clamping seat and the second clamping seat to move and be locked to or moved out of the first position; the movable seat is assembled on the fixed seat in a sliding mode in the first direction, the first direction is the direction in which the movable seat faces the first position, and a third clamping seat used for fixing an injection needle tube body is arranged on the movable seat; the vertical driving assembly comprises a first driving part, a second driving part and a fourth clamping seat; the second driving part drives the fourth clamping seat to reciprocate in the first direction, and the fourth clamping seat is used for being detachably connected with the injection needle push rod. The vertical driving assembly drives the tube body of the injection needle and the push rod to move, and the effect of automatically completing medicine dispensing is achieved.

The subretinal injection device may include an inserter coupled to a subretinal injection needle, and a conduit having a distal end coupled to the proximal end of the injection needle and a proximal end coupled to a fluid source. The conduit may have first and second lumens, and the conduit is positioned through the inserter device. The device may further include a stabilizer for fixing the injection needle in position on the surface of the retina, and a fluid source. The fluid source may include both a first fluid reservoir containing a non-therapeutic solution and a second fluid reservoir containing a therapeutic solution. The fluid source may supply the non-therapeutic solution to the subretinal space from the first fluid reservoir through the first lumen. The fluid source may further supply the therapeutic solution to the subretinal space from the second fluid reservoir through the second lumen.

The veterinary injection needle dismounting device is composed of a needle bottle (1), a needle bottle cap (2) and a needle dismounting clamp (3), the needle bottle (1) and the needle bottle cap (2) are connected together through a needle bottle thread (7) and a bottle cap thread (8), and the needle dismounting clamp (3) clamps a needle seat part of a veterinary injection needle (5). A needle tip and a needle tube at the front end of the veterinary injection needle (5) enter the needle head bottle (1) through the acute angle notch (4) of the needle head bottle cap (2) and are suspended on the upper portion, the injector (6) is separated from the veterinary injection needle (5), the needle detaching forceps (3) are loosened, the veterinary injection needle (5) falls into the needle head bottle (5) through gravity, and veterinary workers can independently operate injection and complete the work of detaching and collecting the veterinary injection needle (6). A large amount of labor cost is saved, the epidemic prevention treatment quality is improved, and animal epidemic disease transmission is reduced.

The application provides a sample injection assembly and a capillary adapter, wherein the sample injection needle assembly has a sample injection needle body and a sample injection needle extending from a head end of the sample injection needle body; the capillary adapter has a first end and a second end and a through hole penetrating through the first end and the second end, the first end has a butt joint groove adapted to the head end of the sample injection needle, and the through hole is used for clamping the capillary at least at one end adjacent to the bottom of the butt joint groove. In this way, the butt joint of the capillary and the sample injection needle assembly is realized when the capillary adapter is butted with the sample injection needle assembly, the pressure borne by the capillary is reduced, the capillary is prevented from being broken, and after the capillary adapter is butted with the sample injection needle, the contact between the sample and air when the sample injection needle sucks the sample in the capillary can be isolated, so that the quality of the sample sucked by the sample injection needle is improved, and the measurement accuracy is improved.

This invention discloses a needlestick-proof syringe, comprising a syringe barrel, a needle hub, a piston head, and a needle. The syringe barrel has a liquid reservoir, and a connecting structure detachably connects the syringe barrel and the needle hub. The needle hub has a liquid outlet chamber, which connects to an opening on the top wall of the needle hub for the needle to pass through. A needle disc is coaxially connected to the end of the needle, and the needle disc is movably disposed in the liquid outlet chamber. The liquid outlet chamber has a limiting structure for restricting the sliding of the needle disc along the needle hub axis when the needle disc is not axially rotating. The piston head has an unlocking structure for driving the needle disc to rotate axially to release the limiting structure from restricting the needle disc. The liquid outlet chamber has a loading structure for applying a force towards the liquid reservoir to the needle disc when the limiting structure releases its restriction on the needle disc. This invention solves the problem of needlestick injuries that occur when medical personnel manually remove the needle after injection, which is common in traditional syringes.

The application discloses a kind of filling assembly and control method, magnetic separation cleaning device.Adding component includes cup rotating member and injection needle, cup rotating member is used to grab reaction cup and drive it to rotate, and its central axis is provided with injection channel;Injection needle is coaxially arranged with cup rotating member and can be from injection channel into reaction cup.In control timing, cup rotating member first drives reaction cup to rotate, and after it is in rotating state, injection needle then adds cleaning fluid or substrate into reaction cup.The design will overlap the timing of filling and mixing steps, effectively reduce the filling splash and magnetic bead loss, improve the purification efficiency, and can complete efficient processing in the short residence time of magnetic separation carousel, especially suitable for high-throughput chemiluminescence immunoassay equipment, while ensuring detection accuracy significantly improve detection throughput.

A syringe (1) has a longitudinal portion (5), in which a piston (10) is guided in a movable manner, which closes the syringe cylinder (5) at one end and which is movable by means of a piston rod (9). On the distal side, a connection (4) is provided for fitting an injection needle (11) at the other end of the syringe cylinder (5). For reducing the dead volume, the piston (10) is displaceable beyond the distal end of the connection (4).

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.

An in vivo medical fluid injection device includes an injection needle movable between a retracted position within a device housing and an injection position extending from the housing. The actuator moves the needle between a retracted position and an injection position. An elastic bladder within the housing contains a medical fluid for injection through the needle when the needle is in the injection position. The delivery member end is located within the housing and biased to move from a first position toward a second position. When in the first position, the delivery member end is cooperatively associated with the actuator to hold the injection needle in the injection position. When in the second position, the delivery member end allows the actuator to move the injection needle to the retracted position, providing an end of delivery indication. The injection device also has a premature lockout prevention system.

This invention discloses an injection system and its control method, relating to the field of medical aesthetic devices. The system includes: an injection needle, an injection assembly, an actuator, and a controller. The injection assembly includes: a reservoir for storing medication; a plunger reciprocating within the reservoir; and an actuator connected to the plunger for driving the plunger forward during skin insertion to execute an injection procedure; the medication flowing from the reservoir outlet to the tip of the injection needle is defined as an injection channel; the actuator connected to the injection needle for driving the injection needle to extend for skin insertion or retraction; and the controller electrically connected to the actuator and the actuator, configured to: control the actuator to retract the injection needle after the injection procedure is completed; and trigger a retraction procedure the instant the injection needle leaves the skin surface; wherein the retraction procedure includes: controlling the actuator to drive the plunger backward to retract a preset amount of medication. This invention controls the triggering of the retraction procedure the instant the injection needle leaves the skin surface, preventing medication spillage.

Flow cytometers having sample injection needles are provided. The subject flow cytometers include a flow cell for transporting particles in a core stream of a flow stream from a proximal end to a distal end, and a sample injection needle having a passage running therethrough for delivering sample fluid from a sample injection line at a proximal end to the flow cell at a distal end to generate the core stream. Flow cells of interest include a flow cell cone at the proximal end, and sample injection needles of interest are configured and positioned to maintain an intact core stream under flow conditions that vary by a magnitude or more. Methods of assembling the subject flow cytometers and methods of analyzing a sample using the subject flow cytometers are also provided.

The invention belongs to the technical field of medical supplies, and particularly relates to an adjustable cervix uteri multi-point micro-injection device which comprises a guide cylinder, an adjusting mechanism is mounted in the guide cylinder, and an injection needle is mounted on the side, extending into a human body, of the adjusting mechanism; the other side of the adjusting mechanism is connected with the carry control mechanism, the rotation control mechanism and the deflection control mechanism through a first connecting rod, a second connecting rod and a third connecting rod. The other side of the adjusting mechanism is further connected with a connecting hose, and the other end of the connecting hose is connected with an injector. Wherein the adjusting mechanism comprises a carry mechanism, a rotating mechanism and a deflection mechanism, the situation that the device pierces other parts of the genital tract of a patient to cause injury before reaching the cervical lesion part can be avoided, and the injection needle can be deflected towards different parts through the adjusting mechanism; according to the device, the injection needle can accurately pierce a diseased region for injection under the condition that the adjustment range in the genital tract of a patient is minimum.

A safety device includes a tubular body, a needle cover, a release element, and a retainer. The tubular body extends along a longitudinal axis and is configured to receive a medical container. The needle cover is movable relative to said body between a retracted position and a distally extended position to shield the injection needle after activation of the safety device. The release element is configured to move the needle cover from the retracted to the extended position. The retainer is configured to transmit a user's activation force to the needle cover once the injection operation is completed. The needle cover includes a distal abutment surface abutting against a proximal abutment surface of a bump protruding from the body in the retracted position. The body has a first axial slot extending from a distal end of the body, and the bump is circumferentially distant from said first axial slot.

The utility model provides a nerve block puncture device which comprises a needle body, scales, a needle head, an oblique-angle needle tip, an injection hole, an injection needle connector and a first hose. The scales are arranged on the surface of the needle body and used for displaying the length of a needle inserting path and the needle inserting depth at a specified needle inserting angle. A needle head is arranged at the first end of the needle body, and an oblique-angle needle tip is arranged at the end, away from the needle body, of the needle head and used for penetrating tissue. An injection hole is formed in the face, away from the oblique-angle needle tip, of the surface of the needle head and used for injecting liquid medicine. The second end of the needle body is provided with an injection needle connector, the injection needle connector is used for connecting the needle body and a first hose, and the first hose is used for conveying liquid medicine to the needle body. The length of the needle inserting path and the needle inserting depth under the specified needle inserting angle are displayed through the scales, and a puncture needle is prevented from entering too deep. The injection hole is formed in the side, away from the oblique-angle needle tip, of the needle head, and skin and skin tissue are prevented from entering the body due to the needle tip opening.