3510 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.

Provided herein is a blood draw syringe connectable to a vascular access device for performing a blood draw. The blood draw syringe includes a syringe barrel and a plunger assembly. The plunger assembly includes a plunger rod and a stopper positioned at the distal end of the plunger rod, with the plunger assembly moveable within the syringe barrel to move the stopper between a starting position and a stop position, with a first volume provided in the chamber with the stopper at the starting position and a second volume provided in the chamber with the stopper at the stop position. The syringe is configured to enable pre-setting of the plunger assembly within the syringe barrel prior to a blood draw, with the stopper being positioned at the starting to provide a first volume that limits a maximum vacuum pressure in the syringe barrel during the blood draw.

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 invention relates to an injection pipe assembly, a high-pressure injection device, a high-pressure injection system and a control method of the high-pressure injection system. An injector of the injection pipe assembly is installed on an injection installation position of the high-pressure injection device, a liquid injection pipe set is installed on a liquid injection installation position, a liquid discharging pipe set is installed on a liquid discharging installation position, and an air discharging bag is installed in an installation groove. The boosting driving mechanism is started to drive the piston to move backwards in the syringe, and the liquid medicine is sucked into the syringe through the first pipeline of the liquid injection pipe set. The boosting driving mechanism drives the piston to move forwards in the syringe, and the liquid medicine in the syringe is pushed into the exhaust bag through the second pipeline. After liquid medicine enters the exhaust bag, the liquid medicine sinks due to gravity and boosting pressure and is discharged through the liquid discharging pipe, bubbles float upwards to the space above the liquid medicine, even in the liquid medicine injection process, the bubbles can be prevented from being pushed into the human body in the exhaust bag, and the continuity of the injection process is guaranteed; and meanwhile, the requirements for air tightness and stability of the structure are lowered, and the reliability in the using process is guaranteed.

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 discloses a gas chromatography sampling device and a gas chromatograph, and relates to the technical field of gas chromatographs. The gas chromatography sampling device comprises a supporting frame and further comprises a main lifting device which is fixedly installed on the supporting frame, the telescopic end of the main lifting device is fixedly connected with a supporting column, a rotating disc is rotatably installed on the outer wall of the supporting column, three sets of syringes which are distributed circumferentially are rotatably installed on the rotating disc, and the three sets of syringes are connected with the main lifting device. A switching part for driving the turntable to rotate is arranged on the supporting column; the sample disc is rotationally mounted on the supporting frame through a first vertical shaft, a disc is rotationally mounted on the supporting frame through a second vertical shaft, and a plurality of circular holes are circumferentially distributed in the disc; by means of the sample feeding device, alternate sample feeding work of a plurality of samples can be rapidly achieved, the sample feeding and detecting efficiency of the samples is remarkably improved, the rubber pads used each time in the detecting process can be replaced, and the detecting efficiency and accuracy of the samples are guaranteed.

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.

This container adapter (10) for a syringe comprises a main body (12), having a lateral configuration suitable for entering by force into a container opening while being adapted to the complementary shape of an inner lateral wall of this container opening, and a through-hole (22), formed longitudinally in the main body (12), for insertion of a sampling endpiece of the syringe. It further comprises a head stopper (24), integral with the main body (12), having an insertion pin (26) shaped to enter by force into the through-hole (22) and seal the latter hermetically.

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.

The invention discloses a high-purity P-PRP preparation system and a preparation method thereof. The high-purity P-PRP preparation system comprises a sterile syringe for sampling, a centrifugal machine for providing a centrifugal effect, a centrifugal sleeve and a separator for purifying a sample of the centrifuged sterile syringe, the centrifugal sleeves are of two types and comprise an inverted centrifugal sleeve used for first-time centrifugation and an upright centrifugal sleeve used for second-time centrifugation. The preparation method comprises the steps of sample preparation, primary centrifugation, purification and re-sampling, secondary centrifugation, final sampling and the like, and finally the leukocyte-depleted platelet-rich plasma with high purity is obtained. According to the system and the method, a conventional medical general syringe can be directly used for the closed centrifugal sleeve, the problem that the syringe makes contact with the outside in the transferring and centrifuging process is effectively solved, the pollution risk in the PRP preparation process is reduced, meanwhile, P-PRP is conveniently extracted, the influence of liquid hanging on the wall on purity is avoided, the purity is improved, and residual pollution is rejected.

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.

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

The present invention relates to a system for providing a bioink in the form of a spray. The system comprises: a) at least two spray configured to receive at least two syringes comprising a nozzle each, each syringe configured to receive one or more components of the bioink; b) a housing, configured to comprise the at least two spray heads and comprising at least two housing nozzles, the housing nozzle comprising a diameter bigger than the diameter of the spray head nozzle; c) a gas inlet connected to the housing configured to receive a gas; and d) a control system comprising at least two valves, each valve associated to a housing nozzle and configured to control the flow of the gas through each housing nozzle. Each valve is further configured to control the provision of the one or more components of the bioink from each syringe, by controlling the flow of gas through its housing nozzle.

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.