92 results about "Injections needle" patented technology

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.

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 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 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.

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).

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.

This utility model discloses a portable syringe plunger auxiliary device, comprising: a base and a power supply module. A syringe holder and an electric plunger are mounted on the base; the syringe holder is configured to engage an injection syringe; the electric plunger is positioned such that its output shaft extends toward the syringe holder, and the electric plunger pushes the piston handle of the injection syringe engaged in the syringe holder toward the needle tip of the injection syringe; the power supply module is installed within the base and electrically connected to the electric plunger through a first power supply circuit, and the power supply module supplies power to the electric plunger. This utility model helps nursing personnel achieve a stable and uniform injection operation over a long period during subcutaneous injections.

The utility model discloses a high sharpness injection needle, including needle tube and needle tip, the needle tip adopts three -stage tapering type multi -edge surface structure, and this three -stage tapering type multi -edge surface structure is composed of main cutting part, transition part and micro blade part, the main cutting part includes three symmetrical distribution's first inclined plane, and every first inclined plane bifurcates two second inclined planes to form transition part, and every second inclined plane bifurcates two third inclined planes to form micro blade part, the needle tip surface is equipped with a plurality of micro -groove, and the third inclined plane intersection of on micro blade part forms nanometer -class blade edge, and this blade edge edge is equipped with periodic micro sawtooth. The utility model discloses a needle tip is three -stage tapering type multi -edge surface structure, and the puncture resistance is reduced in stages, and the pain feeling is reduced, sets up micro sawtooth and can reduce the tissue contact area through " point cutting", and the local stress concentration when puncturing, and then delay passivation, sets up micro -groove and can guide the tissue fluid flow, destroys the negative pressure adsorption effect, and improves the needle insertion smoothness.

1. The name of the design product: pre-filled syringe with pulse injection needle. 2. The use of the design product: medical injection syringe. 3. The design points of the design product: the overall shape of the syringe. 4. The picture or photo that best shows the design points: perspective view 2.

The invention relates to an injection device (1) for injecting a pharmaceutical substance, comprising a proximal portion (5) having an actuator (7) for performing an injection, and comprising a distal portion (13) designed to receive an injection loading portion (3), which in turn has a container receiving portion (17) and a primary container (23) retained in the container receiving portion (17), in which a pharmaceutical substance is contained, wherein the pharmaceutical substance can be injected from the injection loading portion (3) if the injection loading portion (3) is disposed in the distal portion (3), wherein the distal portion (13) is designed so that the injection loading portion (3) can be axially inserted into the distal portion (13).and wherein the injection device (1) has a visual display (15) that is designed and arranged so that an injection needle (25) of the injection loading portion (3) is concealed from the user during use of the injection device (1).

The utility model provides a portable termite control medicine pouring device relates to termite control medicine pouring device technical field, the utility model discloses a storage tank is provided with two braces on the upper fixed connection, two cover bodies are connected on the upper thread of storage tank, the liquid pump is fixedly connected with the upper fixed connection of storage tank, the output of liquid pump is fixedly connected with the hose, one end of hose is fixedly connected with the injection needle tube, is provided with convenient structure on the injection needle tube, convenient structure mainly is composed of the casing, the casing sets up on storage tank, the handle is fixedly connected on the casing, the rotary block is rotatably connected on the casing, the drill is fixedly connected on the rotary block, the utility model solves the problem that the operator needs to carry medicine pouring device simultaneously, still needs to properly keep the drill tool, and needs to carry out the frequent switching between medicine pouring device and drill when using, and leads to the problem that the operation complexity is increased.

The application belongs to the technical field of medicine, and relates to a medicine and instrument combination system for treating bromhidrosis by using a sclerosing agent and a multi-needle injection needle and application thereof. The medicine and instrument combination system is a medicine and instrument composition comprising a sclerosing agent and a disposable sterile injection needle. The sclerosing agent comprises one or more of polidocanol, lauromacrogol, sodium myristyl sulfate and sodium morrhuate. The disposable sterile injection needle is a nine-needle injection needle or a five-needle injection needle. The nine-needle injection needle or the five-needle injection needle has uniformly distributed needle heads and equal lengths of the needle heads. The medicine and instrument combination system can standardize injection of the sclerosing agent in the process of treating bromhidrosis, accurately control the dosage, control the curative effect, reduce adverse reactions and improve safety.

This utility model relates to an injection needle that leaves no drug residue on the skin, belonging to the field of injection needle technology. It includes a guide sleeve, which is detachably connected to a needle tube connector via a fastener. An inner cavity is formed inside the guide sleeve, and a negative pressure interface is provided on the side wall of the guide sleeve. A negative pressure channel is provided inside the guide sleeve, connecting the inner cavity to the negative pressure interface. An exhaust component within the negative pressure channel allows gas to pass through while blocking liquid. This utility model connects to a negative pressure source via the negative pressure interface, continuously drawing air into the inner cavity of the guide sleeve to maintain a stable air pressure. Drug overflowing from the skin can reliably enter the inner cavity, eliminating concerns about delayed gas discharge and increased air pressure within the guide sleeve, thus preventing drug residue on the skin and ensuring the continuity of the injection operation. The exhaust component within the negative pressure channel prevents drug from entering the channel, allowing only gas to escape, preventing drug from being drawn into the device and causing corrosion or malfunction, thereby extending the device's lifespan.

The utility model discloses a sterile injection needle relates to medical instrument technical field, including needle cylinder, the injection needle head is movably sleeved to the injection end of needle cylinder, and the outer surface of needle cylinder is provided with protection cover, when using, medical staff can press inwards extrusion board, and extrusion board can drive extrusion rod to move inwards, and extrusion rod can control the outward rotation of clamping block, make clamping block and first clamping groove separate each other, after that, medical staff can promote protection cover to move under the cooperation of first sliding block and first sliding groove, when moving to the last end, medical staff can release extrusion board, and spring can promote first flat plate to move outward, and first flat plate control clamping block rotates inwards, make clamping block and second clamping groove connect each other to fix protection cover, after injection, reverse operation can move protection cover forward, thereby can reduce the situation that medical staff is easily pricked by injection needle head when injecting and completing back cover protection cover.

The utility model discloses an injection needle assembly, injection needle treatment head and treatment device relate to medical instrument technical field, wherein, injection needle assembly includes needle seat, connecting piece and fixed sleeve, the needle seat has and connects the end, the outer circumferential surface of needle seat is equipped with interface, the outer circumferential surface is located between the end surface of injection end and the end surface of connecting end, one end of connecting piece is equipped in interface, and with needle seat connects, the other end of connecting piece communicates with the liquid storage cavity of injection needle pipe, the fixed sleeve is slidably equipped in connecting piece, and is used for the radial compression of the sleeve joint place of connecting piece with interface, to with interface on connecting piece fixed, fixed sleeve with needle seat connects. The utility model provides technical scheme, to solve the problem of the injection needle assembly internal space occupation too much, needle seat movement stroke is limited and assembly complex in prior art because interface extends along needle seat axial direction.

The present application relates to the technical field of esophageal cancer determination, and particularly relates to an injection device for esophageal cancer lesion position determination, aiming at the problem that the existing device cannot dynamically adjust injection parameters according to lesion ranges, the injection device for esophageal cancer lesion position determination comprises a pipeline, the rear end of the pipeline is connected with a handle, further comprises a bite assembly, a multi-needle injection mechanism and a depth control mechanism; the bite assembly is movably sleeved on the pipeline, is used for adapting to different esophageal lesion positions, and is fixed; the multi-needle injection mechanism is arranged at the front end of the pipeline, is used for forming linear mark points at the edge of the esophageal lesion area; the depth control mechanism is arranged between the multi-needle injection mechanism and the handle, and is used for controlling the injection depth. The multi-needle injection mechanism comprises a tracer cavity, a plurality of injection needles and an angle adjusting assembly. The injection device for esophageal cancer lesion position determination in the present application can adopt synchronous injection of the plurality of injection needles, and can also quickly aim the injection needles at the target direction.

This utility model discloses a reinforced injection needle mechanism, belonging to the field of battery electrolyte injection production technology. The reinforced injection needle mechanism includes an injection cylinder with a rotating structure, and an injection needle tube fixedly connected to the outlet end of the injection cylinder. Its key feature is that it further includes a reinforcing structure fixedly connected to the injection cylinder at one end. The reinforcing structure is arranged around the circumference of the injection needle tube, and the length of the reinforcing structure is less than the length of the injection needle tube. This utility model, by forming a ring of reinforcing structure on the injection needle tube, on the one hand, maintains the standard length of the injection needle tube inserted into the injection hole, preventing air bubbles or electrolyte backflow; on the other hand, it prevents the injection needle tube from colliding with the injection hole during the alignment process, thus preventing deformation of the injection needle tube.

The application relates to the technical field of injectors, in particular to an injection site fixing device and an injection linkage device of an injection device. The injection site fixing device comprises a negative pressure generating device, a sealing mechanism and a suction disc. The suction disc comprises a negative pressure cavity, the negative pressure generating device is connected with the negative pressure cavity, and the negative pressure generating device is used for generating negative pressure in the negative pressure cavity so that the injection site of a user is adsorbed in the suction disc under the action of the negative pressure in the negative pressure cavity. The sealing mechanism is configured to be capable of switching between an open state and a closed state. When the suction disc is not adsorbed to the injection site of the user, the sealing mechanism is in the closed state to isolate the negative pressure cavity and a needle cavity. When the suction disc is adsorbed to the injection site of the user and the injection needle is started to pierce the injection site, the sealing mechanism is in the open state to make the negative pressure cavity and the needle cavity communicate. The injection site fixing device can enable the user to operate with one hand by fixing the suction disc to the injection site, the operation is simple, and thus the user can inject the abdomen and other parts.

The present application relates to the technical field of insulin injection, in particular to a moon phase insulin syringe, which comprises a syringe body, a protective cover, a connecting chuck, a connecting clasp, a connecting ring, a connecting threaded ring, a connecting threaded groove, a connecting head and a needle, the connecting chuck is fixedly connected at the bottom of the syringe body, the connecting clasp is fixedly connected at the bottom end of the connecting chuck, the protective cover is clamped and fixedly connected at the bottom end of the connecting chuck through the connecting clasp, the connecting threaded ring is fixedly connected at the middle of the bottom end of the syringe body, the connecting ring is fixedly connected at the bottom end of the connecting chuck, the connecting threaded ring is located inside the connecting ring, and the connecting threaded groove is arranged between the connecting threaded ring and the connecting ring. The connecting adjusting part and the stamping part can leave a decorative pattern around the injection needle hole during the process of inserting the needle into the skin to inject insulin, the pattern can shield the needle hole, and the position and the number of needle pricking can be known by observing the pattern.

1. Name of the product in this design: Standardized Insulin Injection Education Rotary Canister. 2. Purpose of this design: This product is mainly used in educational settings for disposable injection needles. This article mainly introduces the selection of disposable needles and the dangers of reusing needles. At the same time, it provides a way to observe the needle through microscopic magnification. 3. The key design elements of this product are the combination of shape, pattern, and color. 4. The image or photograph that best illustrates the design highlights: 3D view of component 3. 5. The design for which protection is sought includes color. 6. The bottom surface of this design product is a part that is not easily seen or not visible during use, so the bottom view of component 1 is omitted; the bottom surface of this design product is a part that is not easily seen or not visible during use, so the bottom view of component 2 is omitted; the bottom surface of this design product is a part that is not easily seen or not visible during use, so the bottom view of component 4 is omitted. 7. Other situations requiring explanation: Component description: Component 1 and Component 2 are display modules, Component 3 is a needle observation module, and Component 4 is a power supply module for Component 1, Component 2, and Component 3.

A medical injection system (100) suitable for single-handed injection, the medical injection device (100) comprising: a gas compartment (130) configured to contain a gas, the gas compartment (130) comprising a piston (140); a container (110) intended to contain a pharmaceutical composition (170), the container (110) having a proximal portion (111) and a distal portion (112), the distal portion being provided with a fluid outlet configured to receive an injection needle (120), wherein the piston (140) is configured to move proximally between a distal position defining a first volume of the gas compartment (130) and a proximal position defining a second volume of the gas compartment (130), the second volume being smaller than the first volume, and wherein the gas compartment is configured to be in gas communication with the container (110) to force the pharmaceutical composition (170) through the fluid outlet upon proximal movement of the piston (140).

The utility model discloses self-rotating constant-eccentricity spinning equipment for preparing a dura mater patch, which comprises a supporting seat, a rotating device is rotatably arranged on the supporting seat, a cavity is formed in the rotating device, a horn-shaped fixer and a horn-shaped sealing rotator which are connected with each other are arranged in the cavity, and the horn-shaped fixer and the horn-shaped sealing rotator are connected with each other. The rotating device drives the trumpet-shaped fixer, the trumpet-shaped sealing rotator, the rotary infusion tube and the eccentric needle head to rotate and is matched with external propelling equipment such as an electric push rod to push an injection needle cylinder to be precisely propelled, so that fibers are sprayed and scattered on a roller collector of sterile gauze in a spiral branch form; and the fibers are easy to intertwine due to spiral scattering, so that an important role is played in improving the mechanical property of the dura mater patch. And meanwhile, a single fiber generates a small branch structure in the eccentric spinning jet process, so that different fibers can be mutually hooked and connected, and the mechanical property of the fiber membrane is further enhanced.

This invention discloses a safe and controllable injection system for subcutaneous infusion of preparations, comprising: a shell with an internal cavity for accommodating a reservoir; a reservoir, installed within the cavity, for storing the infused drug solution; a drive assembly, located within the shell and connected to the reservoir for applying a continuous thrust to the reservoir; and a micro-infusion tubing, one end of which is sealed to the outlet of the reservoir, and the other end of which is equipped with an injection needle for puncturing subcutaneous tissue, the needle having an internal micro-volume flow path to reduce residual drug solution within the tubing. This invention uses a constant-force spiral spring as the drive source, combined with a flow-limiting tube with precisely controlled inner diameter, to provide a stable and controllable driving force throughout the infusion process, ensuring uniform drug infusion within a predetermined time, improving the stability and efficacy of drug absorption; furthermore, the infusion process eliminates the need for continuous hand-held operation by medical personnel, saving medical resources.

The utility model discloses a disposable cassette syringe with the functions of compatible long and short cassette medicine bottles and preloaded medicine bottles, belongs to the technical field of syringes, and comprises a sleeve, a disposable injection needle is detachably installed at one end of the sleeve, a puncture needle with holes is arranged at the inner end of the sleeve, the puncture needle with holes and the disposable injection needle are communicatively arranged, a screw cap is detachably installed at the other end of the sleeve, a push rod is slidably connected to the inner wall of the screw cap, and the outer diameter size of the push rod is matched with the inner diameter size of the screw cap. The device is provided with an injection needle, can be compatible with long and short medicine bottles, can be preloaded with medicine, can save a certain amount of time in an emergency or busy medical environment, has a simple structure, is convenient to operate, and has high practicality.

Smart needle systems and related methods, such as smart injection needle system for accurate characterization of cell types, concentrations, and viability, are generally provided. In some embodiments, fluidic components (e.g., configured to interface with a medical device such as a syringe or in-line flow system) are provided.

This utility model discloses a sample injector for moisture analysis of chemical polyethers, comprising an injector body, a dustproof box fixedly installed on the front of the injector body, a sample holder located below the dustproof box at the bottom of the injector body, a through hole at the bottom of the dustproof box, a threaded rod rotatably connected inside the dustproof box to the rear side of the through hole, a lifting motor fixedly installed inside the dustproof box to the rear side of the threaded rod, the output end of the lifting motor being drivenly connected to the bottom of the threaded rod, and a lifting frame located inside the dustproof box being threadedly connected to the threaded rod, with a sample injection tube fixedly installed on the front of the lifting frame directly above the through hole. When the sample injection tube rises, a cleaning sponge cleans the sample outside the needle tube, while the interior of the dustproof box effectively ensures the cleanliness of the injection needle, thus improving the practicality of the sample injector.

The present application relates to the technical field of self-breathing anesthesia supplies, and particularly relates to a narcotic injection device for self-breathing anesthesia, which comprises an injector body and an injection needle part detachably installed at the lower end of the injector body, the injector body comprises a needle cylinder provided with a scale bar at the front end and a needle nozzle communicated at the lower end of the needle cylinder. In the present application, the original narcotic injector structure is upgraded and improved, a first extension part is arranged between the needle cylinder and the finger wing, a second extension part is added between the cross plug rod and the finger handle, and a needle adjusting mechanism is arranged between the needle and the needle plug. According to the actual anesthesia injection requirements, the puncture angle and the puncture depth of the needle can be conveniently adjusted, the abnormal problems such as the limited puncture angle of the needle, the insufficient puncture injection depth of the needle, the occlusion of the endoscope view and the dropping of the injector into the cavity are effectively reduced, and the convenience, stability and safety of the narcotic injection process are improved.

The utility model relates to medical tool field especially arc shape prevents the blocked fascia bursa lower anesthetic injection needle head, including needle head structure, needle head structure includes the connecting head, the lower end edge department of connecting head is fixedly connected with the limiting ring, the upper end opening inner wall of connecting head is fixedly connected with first needle tube, the upper end opening of first needle tube is fixedly connected with second needle tube, the inner wall of second needle tube is linked with the inner wall of first needle tube, and the outer wall of two auxiliary injection holes of asymmetry is opened in the front and back two ends of second needle tube, and second needle tube presents the circular arc curved design, the utility model discloses the needle tube of the circular arc curved design of additional installation, can be more close to the eyeball form when operating needle, effectively reduces the resistance in the fascia bursa lower injection operation process, and the auxiliary injection hole of additional installation avoids the operation difficulty caused by the single opening obstruction of needle head front end, thereby improves the efficiency and safety of anesthetic operation, reduces the risk of complication.