3192 results about "Syringe" patented technology

A syringe assembly includes (1) a syringe barrel defining a chamber; (2) a plunger mounted in the chamber and moveable with respect to the barrel; and (3) a cap assembly containing a cap and an absorbent material is removably attached to the plunger. A strip package includes at least two cap assemblies. Each of the cap assemblies includes a cap holder and an antiseptic cap positioned in the cap holder. The antiseptic cap includes a sidewall defining a chamber and an antiseptic substance within the chamber. A strip extends over at least two cap assemblies. The strip includes a first seal engaged to the cap holder and a second seal engaged to the antiseptic cap.

The invention discloses an automatic injector which comprises a needle tip protection sleeve, a pen body, an anti-mistaken-touch injection assembly and an injector body, the anti-mistaken-touch injection assembly and the injector body are installed in the pen body, the anti-mistaken-touch injection assembly comprises a release part, a release spring, an injection spring, a sound production base and a push rod assembly, and a limiting sliding block is arranged on the release part; a release sliding rail matched with the limiting sliding block is arranged on the sound production base, in the initial state, the limiting sliding block is not clamped into the release sliding rail, in the assembling process, the injection assembly is rotated to enable the limiting sliding block to be clamped into the release sliding rail, and the needle tip protection sleeve can touch the release piece so as to trigger the push rod assembly to move. According to the scheme, installation is convenient and simple, the overall structure is stable and reliable, triggering is sensitive, and safety is high.

The utility model discloses a microsphere injection anti-needle-blocking device which comprises a handpiece, an injector is fixed to the handpiece, the handpiece comprises a vibration part, and when the vibration part is in a working state, the vibration part enables the handpiece to vibrate; and the host is electrically connected with the vibration part and is used for controlling the start and stop of the vibration part. According to the application, the injector is fixed on the handpiece, and the host is connected with the vibration part of the handpiece to enable the handpiece and the injector to vibrate, so that the solid microspheres precipitated in the injector and the liquid are remixed. Therefore, injection treatment interruption caused by needle head blockage is avoided, and meanwhile waste and low efficiency caused by needle head replacement are avoided.

This invention belongs to the field of medical syringe technology, specifically referring to a syringe connector, including a main body with an inlet end and an outlet end. The inlet end connects to the syringe. The main body has a flow channel with both ends communicating, and a sealing element is placed within the flow channel, dividing the flow channel into an inlet channel and an outlet channel. After the connector is connected to the needle, the needle passes through the sealing element and extends into the inlet channel, allowing liquid from the syringe to flow into the needle. The main body can take various shapes, as long as both ends are cylindrical. A common design is a tubular structure for the entire main body. The inlet end enables the connector to be matched with the syringe; the outlet end enables the needle to be matched with the connector. The connector acts as a carrier to connect the syringe to a mismatched needle. Furthermore, the syringe connector can prevent the waste of existing resources in the market.

Caps and other luer taper medical devices having a volume displacing protrusion are described. The volume displacing protrusion can extend in an axial direction away from an end wall inside the female hub and be configured to create a seal that can be substantially airtight with a distal end of a syringe that is engaged with the cap or other luer taper medical device. The volume displacing protrusion of the cap or other luer taper medical device can create a seal with a distal end of a syringe before an outside surface of the syringe tip creates a seal with the luer taper of the female hub.

A method for dosing sterile syringes with medicinal products includes arranging syringes in a syringe nest and the syringe nest in a device with a cover, sterilizing the syringes, loading the devices with the syringes in a dispensing system, and uncovering, dosing and covering the syringes by a dosing system in the presence of a laminar flow. The device allows the nests to be sterilized and the cover protects the inside of the syringes from suspended particulates.

The utility model relates to the technical field of needleless injectors, in particular to a liquid pushing mechanism and an injector, the liquid pushing mechanism comprises a liquid storage assembly, the liquid storage assembly comprises a liquid storage tube and a liquid outlet hole arranged at the end part of the liquid storage tube; the pushing assembly comprises a piston rod arranged in the liquid storage pipe in a sliding mode and a push rod capable of moving relative to the piston rod; the push rod can drive the piston rod to move synchronously when the relative displacement reaches the tail end of the stroke. According to the liquid pushing mechanism and the injector, a relative displacement action exists between the piston rod and the push rod, when the push rod and the piston rod generate relative displacement, the moving speed of the push rod can be increased, when the push rod makes contact with the piston rod, the piston rod can be impacted, and when the piston rod is impacted, the liquid medicine spraying pressure can be increased, so that the epidermis can be punctured conveniently; the piston rod moves along with the push rod in the later period to slowly enter the human body.

A system for crimping and expanding a medical device may include a delivery system with a handle, a catheter, and an inflatable balloon. A syringe may receive inflation media and may be configured to be received on a balloon inflation system and to be coupled to the delivery system. A crimper may have a collapsible iris assembly configured to receive the medical device therein. The crimper may be configured to mechanically couple to the balloon inflation system. The balloon inflation system may actuate the crimper to crimp the medical device onto the balloon when the medical device is received within the iris assembly. The balloon inflation system may be configured to actuate the syringe to advance the inflation media from the syringe to the balloon to expand the balloon and to expand the medical device that is crimped onto the balloon.

To provide an electric syringe that realizes stable driving of an electroosmotic flow pump.SOLUTION: An electric syringe comprises: a suction side flow passage part having a flow passage in which driving liquid is stored; and a driving mechanism part having a driving flow passage communicating with the flow passage of the suction side flow passage part. The driving mechanism part includes a pair of electrodes and a porous body sandwiched between the pair of electrodes, and functions as an electroosmotic flow pump. The electric syringe has a tubular relief pipe part whose one end part is connected to a portion between the suction side flow passage part in the driving mechanism part and the porous body.SELECTED DRAWING: Figure 1

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.

The invention discloses a high-pressure injection system and method. The high-pressure injection system comprises an equipment body, an injection propelling device, a needle cylinder pipeline suite, a medicine bottle replacing device, a bubble induction sensor, a gravity sensor, a pressure sensor and a control system, wherein the injection propelling device, the needle cylinder pipeline suite, the medicine bottle replacing device, the bubble induction sensor, the gravity sensor and the pressure sensor are installed on the equipment body; wherein the medicine bottle replacing device is used for containing and automatically replacing medicine bottles; the needle cylinder pipeline suite is communicated with the needle cylinder pipeline suite through a puncture outfit, and can selectively suck liquid medicine and continuously inject multiple patients; the injection propulsion device drives a needle cylinder piston to realize precise injection; the bubble induction sensor, the gravity sensor and the pressure sensor are respectively used for monitoring pipeline bubbles, medicine bottle weight and needle cylinder pressure in real time; the control system coordinates all the components, and full-automatic execution of medicine bottle replacement, medicine liquid extraction, pipeline exhaust and injection control operation is achieved. Full automation of the injection preparation process is achieved, the radiography examination efficiency is remarkably improved, the labor intensity of medical workers is reduced, and the safety and accuracy of the injection process are ensured.

A sliding cover for a liquid delivery device, such as a cap (100) for a pen injector (200), incorporates a set of sensors including an optical sensor (110) with an output which changes during uncapping or capping motions on passing of a plunger (220) of the pen injector. This output is used together with a position sensor (120) to determine the position of the plunger along a cylinder (210) of the liquid delivery device. By monitoring changes in the plunger position, the quantity of dosages delivered by the liquid delivery device can be determined, displayed, stored and / or transmitted to an external device for further data processing or storage. Preferred implementations of the invention employ optical sensors with a converging beam (115), and / or position sensors employing linear potentiometer strips (132).

The pulping and feeding mechanism comprises a feeding device, a seat stand pushing device and a melt injection assembly, the melt injection assembly comprises a melt device, a valve device, an injection device and an injection port, the output end of the feeding device is connected with the melt device, and the output end of the injection device is connected with the valve device. The valve device is arranged between the melting device and the injection device, the melt injection assembly is installed on the seat platform pushing device, the seat platform pushing device drives the melt injection assembly to advance and retreat, the injection device comprises an injection cylinder, an injection plunger assembly and an injection oil cylinder, and the injection oil cylinder is in driving connection with the injection plunger assembly. The injection plunger assembly is movably arranged on the syringe, an acting piece is arranged on the injection plunger assembly, and a travel switch is arranged on the injection device. According to the pulping and feeding mechanism, the melting device, the valve device, the injection device and the injection port are arranged, so that the weight of slurry conveyed to the injection chamber of the tilting vertical injection mechanism every time is controlled more accurately.

Disclosed herein are automatic-locking and automatic-unlocking syringes, and associated systems and methods. In some embodiments, a syringe can include a barrel, a plunger assembly slidably positioned within the barrel, and a locking assembly coupled to the barrel. The syringe is configured to (i) automatically lock the plunger assembly to the locking assembly when the plunger assembly is withdrawn through the barrel with a vacuum in the barrel, (ii) automatically unlock the plunger assembly from the locking assembly when the barrel no longer experiences vacuum and / or experiences negligible vacuum, and / or (iii) inhibit or even prevent automatic locking of the plunger assembly to the locking assembly when the plunger assembly is withdrawn through the barrel with no and / or negligible vacuum within the barrel.

A filling aid. The filling aid includes a locking portion including a groove feature; and a locking feature having a locked and an unlocked position; and a filling syringe holder slidably attached to the locking portion, the filling syringe holder including a filling needle cradle portion having a tongue feature; and a needle housing portion comprising at least one tab having a starting position and a filling position, wherein the groove feature configured to accommodate the tongue feature, and wherein the locking feature interact with the filling syringe holder wherein when the locking feature moves from the locked position to the unlocked position the needle housing portion moves from the starting position to the filling position.

The utility model relates to the technical field of medical instruments, and discloses a skin auxiliary lifting and pinching fixing clamp based on abdominal injection, which comprises an auxiliary pinching clamp, a lifting and pinching part, a handle part, a through groove, a spring ring and a clamping soft cushion. The two sets of handle parts are pressed to be close to each other, so that the clamping soft cushions on the two sets of lifting and pinching parts are opened to clamp the lifting and pinching protruding parts, the lifting and pinching parts are continuously kept fixed, the clamping soft cushions are made of silica gel materials, discomfort of the clamping parts of a patient can be reduced, at the moment, medical staff can concentrate on safe and stable injection of an injection instrument, and the safety of the injection instrument is improved. The situation that a needle shakes and folds due to redundant operation, and discomfort and unnecessary danger of a patient are increased is avoided, so that the skin of the patient can be automatically lifted, pinched, fixed and kept through the device, the hands of a nurse are liberated, the operation difficulty of the nurse is reduced, injection adverse reactions are reduced, and the injection comfort and safety of the patient are improved.

An analytical instrument having a syringe size identification functionality includes a syringe pump with syringe having size Vsyri, an electric drive, a valve downstream of the syringe, a pressure sensor between the syringe and the valve, a constant downstream volume Vc and a processor configured to control the electric drive to move the plunger from L0 for detecting pressure P1 to a pressure detection position Ld for detecting P2 using the pressure sensor. The processor is configured to calculate the theoretical pressure P2* using a modified version of Boyle's law: P2*=P1(Vsyri+Vc) / (Vsyri(1−x)+Vc) and compare the theoretical pressure P2* with the detected pressure P2. When the theoretical pressure P2* equals the detected pressure P2, the analytical system is released for use.

An injector includes a housing, a needle, and a needle shield removably coupled to the needle. A guard assembly is coupled to the housing and includes a guard holder coupled to the needle shield and having at least one engagement feature extending radially inward and a needle guard extension removably coupled to the guard holder. The needle guard extension is coupled to the guard holder and separated from the housing in an initial position, coupled to the guard holder and coupled to the housing in an engaged position, and separated from the guard holder and coupled to the housing in an active position. The guard holder couples to the needle shield to remove the needle shield from the needle when the needle shield extension is moved from the engaged position to the active position.

The invention discloses an automatic injection pen which comprises a pen container shell with the open front end, a pre-filling syringe is arranged in the pen container shell, a medicine pushing rod and a locking mechanism are arranged in the pen container shell, and an unlocking structure is further connected to the pen container shell in a sliding mode. The pen container shell is further provided with a first elastic element which pushes the medicine pushing rod to collide with a piston of the pre-filled syringe after the locking mechanism is unlocked so as to make a first prompt sound and enable the pre-filled syringe to conduct injection. And a prompting piece is arranged between the medicine pushing rod and the pen container shell, wherein the prompting piece is locked when the medicine pushing rod is in the initial state, and the prompting piece is unlocked when the injection of the pre-filled syringe is finished after the medicine pushing rod advances by a second preset distance, so that the prompting piece collides with the pen container shell to give out a second prompting sound. The product can respectively generate clear and distinguishable sounds at two key nodes of injection starting and injection completion, so that a user can accurately judge the injection process without depending on vision, the product is suitable for visual impairment people or operation in an emergency scene, and the medication safety and psychological safety are improved.

The invention discloses a dressing-change-free intelligent compression healing promoting device after cardiac pacemaker implantation. The dressing-change-free intelligent compression healing promoting device comprises a composite dressing, a polymorphic biosensor, a medicine injection hose, a pressure applying air bag, a thermoplastic material and an acceleration sensor, the polymorphic biosensor medicine injection hose and the pressure applying air bag are arranged in the inner layer of the composite dressing, the position, corresponding to an incision, of the medicine injection hose is arranged in the composite dressing, and one end of the medicine injection hose is connected with the antibiotic storage injector in a split mode; the thermoplastic material is integrally connected to the side, close to the clavicle, of the upper portion of the composite dressing, the acceleration sensor is arranged in the thermoplastic material, the pressure applying air bag is detachably connected with the air pump through the air adding hose, and the one-way valve is installed on the air adding hose. According to the dressing-change-free intelligent compression healing promoting device used after cardiac pacemaker implantation, the positions and the connection relation of all the components are defined, function cooperation is achieved, and the problems existing in an existing nursing mode are effectively solved.

The invention discloses a micro reagent total phosphorus analyzer and an analysis method, and belongs to the technical field of water quality monitoring. A liquid metering assembly comprises an injection pump, a liquid storage ring and a multi-channel valve; the digestion colorimetric assembly comprises a digestion tube, a heating element, a temperature sensor, a fan, a light source and a photodiode; the liquid discharge assembly comprises a peristaltic pump; a liquid outlet of the injection pump is connected with a first port of the liquid storage ring through the first electromagnetic pinch valve and the second electromagnetic pinch valve in sequence, a second port of the liquid storage ring is connected with a public port of the multi-channel valve, and a sample inlet of the digestion pipe is connected with a first channel of the multi-channel valve and the peristaltic pump through the first high-pressure two-way valve. The other channels of the multi-channel valve are respectively connected with the water sample to be detected, and a total phosphorus detection reagent and a total phosphorus standard solution which are used for carrying out total phosphorus analysis on the water sample to be detected. The micro-reagent total phosphorus analyzer provided by the invention can eliminate cross contamination of reagents, reduce reagent consumption and waste liquid amount, and improve metering precision and detection stability of micro-reagents.

The invention discloses a medicine adding device used in cooperation with a hemodialysis machine and a using method of the medicine adding device. The medicine adding device used in cooperation with the hemodialysis machine comprises a blood pipeline and a medicine adding device, the first medicine adding assembly comprises a bin body, a first medicine liquid guide pipe and a flow control assembly. During use, medicine entering the bin body can be slowly injected into the blood pipeline through the first medicine liquid guide pipe by adjusting the flow control assembly. Under an original conventional medicine adding mode, medicine injected into blood at a time through an injector can be slowly injected into the blood when the first medicine adding assembly of the medicine adding device is adopted for medicine adding, so that the medicine can flow into the blood slowly and more dispersedly, is more fully and uniformly mixed with the blood and then flows back into the body of a patient along with the blood successively, and the medicine adding effect is good. A better treatment effect is achieved; and meanwhile, for the medicament needing to be slowly injected, medical personnel do not need to slowly push the piston of the injector to slowly move to inject the medicament, so that the operation difficulty of slowly injecting the medicament is reduced.

Disclosed herein are drug delivery devices including catheter assemblies, infusion systems, pre-filled syringes, methods of use, combination products, kits of parts, and drug products with parts lists for independent sourcing, for use in the otic administration of a drug product to a subject in need thereof.

A catheter system and method of introducing an intravenous catheter into a patient includes a syringe, an access needle, a pliable catheter, and a guidewire. The syringe has a first chamber and a distal syringe end portion, which defines a conduit distally extending to a distal syringe opening such that the conduit fluidly connects the first chamber to the distal syringe opening. The access needle defines a needle lumen longitudinally extending therethrough and is secured relative to the distal syringe end portion. The pliable catheter is releasably secured relative to the access needle. The guidewire distally extends through the conduit toward the distal syringe opening and is configured to selectively move through the conduit, the distal syringe opening, and along the needle lumen to thereby guide movement of the pliable catheter relative to the access needle for introducing the pliable catheter into the patient.

Devices and methods are provided for delivering gas. In one example, the device includes a syringe body including a proximal end, a distal end including an outlet and a gas chamber communicating with the outlet, and a plunger carrying a piston slidably received within the syringe body. A canister containing a gas is provided within the plunger adjacent a passage through the piston communicating with the gas chamber. A drive actuator is movable to cause an opener pin to open a septum of the canister and release the gas, whereupon the gas travels through the passage into the gas chamber, thereby displacing the piston proximally to fill the gas chamber. Once activated, the plunger may be advanced to deliver the gas within the gas chamber through the outlet into a patient's body, e.g., into an eye via a cannula connected to the outlet.

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 relates to a drug injection multi-needle of which the surface to come into contact with the skin provides either a cooling or warming sensation so that pain can be reduced and, simultaneously, a hemostatic effect can be increased and, specifically, comprises: an injection part to which a drug syringe for storing a drug is coupled and into which the drug is injected by means of pressure; a needle coupling part which is coupled to the front surface of the injection part and to which a plurality of needles to penetrate the skin are coupled; a suction part into which the needle coupling part is inserted and which suctions air at a position coming into contact with the skin; and a temperature-regulating part which is formed on the front surface of the suction part and which regulates the temperature.

An adapter for connecting one or more storage containers with a syringe is described. The adapter includes a first port that provide a connection with a first container volume, a second port that provides a connection with a second container volume, a third port that provides a connection to a syringe. The adapter further includes a mixing channel extending from a first end in fluid communication with the third port to a second end. The mixing channel includes a tortuous path along at least a portion of its length. The mixing channel enables two constituents of a pharmaceutical complex to be mixed through the mixing channel to form the pharmaceutical complex. Also disclosed is a system including such an adapter, a method of mixing two constituents of a pharmaceutical complex via such an adapter and a method of manufacturing such an adapter.

The present application relates to the technical field of hosiery production line equipment, and particularly relates to a glue coating device for a needle cylinder, which comprises a rack, a glue coating machine box, an anaerobic glue nozzle, a scraper and a smearing transition wheel, the glue coating machine box is arranged on the rack, the inside of the glue coating machine box is provided with a glue coating mechanism and a mounting mechanism, the mounting mechanism is externally connected with a power motor at one end, and the glue coating machine box is provided with an opening at the other end of the mounting mechanism; the anaerobic glue nozzle and the smearing transition wheel are sequentially and oppositely arranged on the mounting mechanism, the bottom of the glue coating machine box is provided with a glue containing cavity, the bottom of the smearing transition wheel is immersed in the glue containing cavity and is in contact with the anaerobic glue, and the scraper is obliquely arranged on the mounting mechanism. Through the cooperation among the anaerobic glue nozzle, the scraper and the smearing transition wheel, the two sides of the fine groove on the outer cylinder of the needle cylinder after feeding are automatically coated by mechanical structure, and uniform and high-speed glue coating is realized.

A mechanical infusion system includes a housing having top and bottom portions. A pair of sliding slots extend transversely along the bottom portion. A hinge causes the top portion to connect with the bottom portion to form a closed position and separate from the bottom portion to form an open position. The housing forms engagement and syringe receiving cavities to respectively receive a flange and barrel of a syringe. A movable pusher is biased towards the engagement cavity so as to apply force to a plunger of the syringe. The infusion system also includes linkages configured to move transversely in a first direction upon opening of the top portion to cause the pusher to move away from the engagement cavity and move transversely in a second, opposite direction upon closing of the top portion to allow the pusher to retract towards the engagement cavity within the sliding slots.