1804results about "Infusion syringes" patented technology

A male cap can include a male tapered outer surface that can be configured to mate with a female luer to create a fluid tight fit. The male cap can also include a water-soluble antimicrobial composition disposed on the male extension. The male cap can include a fluid-soluble, slower-dissolving material covering the water-soluble antimicrobial composition or incorporated within the water-soluble antimicrobial composition. The slower-dissolving material can be configured to slow a dissolution of the water-soluble antimicrobial composition during installation of the male cap into the female luer.

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 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 discloses a hydrotherapy needle. The hydrotherapy needle comprises a needle body, a needle seat and a needle cap, a first positioning structure is arranged on the needle seat and is used for identifying the position of the needle seat by a machine; the needle cap is connected with the needle base in a matched mode, a second positioning structure is arranged on the needle cap and used for recognizing the position of the needle cap relative to the first positioning structure and the orientation of the needle cap through a machine, and the needle body is suitable for being fixed through the needle base and / or the needle cap. When an automatic machine is used for positioning and assembling the needle base and the needle cap, the first positioning structure and the second positioning structure can serve as recognition feature points of the needle base and the needle cap respectively, and then the positioning precision and the assembling precision of the machine for the needle base and the needle cap are improved. According to the technical scheme, the problems that an existing hydro-optical needle is low in assembling precision and assembling efficiency are solved, and assembling convenience of the hydro-optical needle is improved.

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 multi-dose injection pen, and relates to the technical field of medical instruments, the multi-dose injection pen comprises a pen body, a dose adjusting assembly and a driving assembly, the dose adjusting assembly and the driving assembly are installed in an inner cavity of the pen body, a dose indicator is rotated when injection dose is adjusted, dose readings on the outer surface of the dose indicator directly face a reading window, and a sleeve rotates synchronously. Further, the torsion of the torsion spring is increased, and pre-stress is accumulated for injection; during injection, the driving assembly is pressed in the axial direction, the torsion of the torsion spring is released, and the torsion spring recovers to the initial torsion state after a set medicine dosage is injected; the torsion spring comprises the first spiral section and the second spiral section, one end of each spiral section is connected to the shell cover, the other end of each spiral section is connected to the sleeve, compared with a traditional structure, larger torsion can be generated when the torsion spring rotates by the same angle, and the number of rotation turns needed by the torsion spring with the same prestressing force is reduced.

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.

The utility model relates to an injection pen, in particular to a dose-adjustable reusable mechanical injection pen which comprises a pen container, a medicine bin is arranged on one side of the pen container, a screw rod pushed into the medicine bin is arranged in the pen container, and a free orientation block for preventing the screw rod from rotating is arranged at the end of the pen container. The pen container is further internally provided with a scale push rod assembly used for driving the screw to move, the scale push rod assembly comprises a transmission rotary drum which rotates in the pen container to form reciprocating motion, and the transmission rotary drum and the directional transmission sleeve are in linkage through matching of a guide groove and a guide block. When the medicine bin is screwed into the pen container, the directional transmission sleeve is driven by the transmission rotary drum so as to drive the screw rod to advance, finally, the medicine bottle rubber plug is pushed to complete the medicine feeding action, compared with an injection pen in the market, many parts and structures are simplified, and the injection pen further has the advantages of being simple in structure, convenient to machine, easy to assemble and high in practicability.

An enteral dosing control coupling comprising a cylindrical collar defining a hollow internal chamber and a lumen extension tip projecting axially into the internal chamber, the lumen extension tip defining an internal lumen extending therethrough. In example forms, the lumen extension tip is integrally formed with the cylindrical collar. In other example forms, the lumen extension tip is a separate piece and is removably engageable within the cylindrical collar.

Systems and methods for mitigating backflow in subcutaneous infusion devices are disclosed. A medical device can include base having a surface configured to be placed against a patient's skin and a subcutaneous assembly coupled to the base and configured to be inserted through the patient's skin when the surface of the base is placed against the patient's skin. The subcutaneous assembly includes an infusion cannula defining a lumen extending therethrough and configured to infuse fluid therethrough, and a sensor configured to sense a biological analyte. An expandable member (e.g., a swellable material) is coupled to a radially outer surface of the subcutaneous assembly. The expandable member is configured to expand in a radially outward direction when in the presence of bodily fluid, thereby at least partially blocking a flow path from the distal end portion of the infusion cannula to the sensor.

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

The present disclosure relates to the use of a PFAS-free cannula in delivering a fluid medication, such as insulin, to a subcutaneous site. The cannula comprises polycarbonate polyurethane polysiloxane (PC-PU-PS), wherein the cannula is configured for subcutaneous insertion into the tissue of the individual in need thereof. The disclosure includes methods for administering insulin using the cannula and infusion devices comprising the cannula.

Disclosed herein are devices, systems, and methods for at least partially automatically aspirating clot material and blood from the vasculature of a patient, filtering the blood from the clot material, and returning the blood to the vasculature of the patient. In some embodiments, a system in accordance with the present technology can include (i) an aspiration catheter configured to be positioned within the vasculature of a patient proximate to clot material therein, (ii) an aspiration assembly selectively fluidly couplable to the aspiration catheter, (iii) a filter assembly selectively fluidly couplable to the aspiration assembly, (iv) a reinfusion and flushing assembly selectively fluidly couplable to the filter assembly, (v) a reinfusion catheter selectively fluidly couplable to the reinfusion and flushing assembly and configured to be positioned within the vasculature, and (vi) a control system communicatively coupled to the aspiration assembly, the filter assembly, and / or the reinfusion and flushing assembly.

Syringe tip caps are described herein. Such syringe tip caps may include a cup, a cap, a locking feature, a peelable seal and an absorbent material. The cap having locking features and a chamber appropriately sized to adapt to and interlock with an annular wall of the cup.

Various exemplary drug syringes with a mechanical stop for a second dose, drug products utilizing the same, and methods of using drug syringes with a mechanical stop for a second dose are provided. In general, a nasal drug delivery device is configured to dispense therefrom first and second doses of a drug therefrom into a nose. The drug delivery device includes a mechanical stop configured to provide a pause between the delivery of the first and second doses. During the pause, a user of the drug delivery device can move the drug delivery device from one nostril, into which the first dose was sprayed, to another nostril, into which the second dose can be sprayed. The mechanical stop is configured to hold the drug delivery device in a static delivery state.

The invention relates to a device (10) for manually inserting a plunger-type stopper into a syringe cylinder, comprising a receptacle (18) designed to hold the syringe cylinder; a tubular barrel (30) designed to accommodate the plunger-type stopper in its interior; a holding device (28) designed to hold the barrel; and a moving device (40, 42, 44, 46, 48) designed to move the plunger-type stopper; the holding device (28) having an actuation portion (34) for moving the barrel (30) relative to the plunger-type stopper. The present invention further relates to a corresponding method.

A syringe assembly void of silicone is disclosed. The syringe assembly includes a syringe plunger and a syringe barrel. The syringe plunger includes a handle and a plunger tip. The plunger tip includes a wiper extending from a hinge configured to allow the wiper to flex proximally and distally. The wiper includes a proximal circumferential seal and a distal circumferential seal. The proximal circumferential seal is configured to seal against an internal surface of the syringe barrel when the syringe plunger is displaced proximally and a negative pressure is generated within the syringe barrel. The distal circumferential seal is configured to seal against the internal surface of the syringe barrel when the syringe plunger is displaced distally and a positive pressure is generated within the syringe barrel. The syringe barrel includes internal detents to retain the syringe plunger within the syringe barrel.

A system for transferring fluids, including a syringe adapter having a housing defining a first end, a second end, and a longitudinal axis extending from the fist end to the second end; a cannula positioned within the housing; a seal arrangement movably positioned within the housing; at least one locking element extending from the housing; and a vial adapter releasably attachable to the syringe adapter, the vial adapter including a body with a first end and a second end opposite the first end, wherein the first end is positionable within the housing of the adapter and the second end is configured to attach to a container; and at least one retention element coupled to the body, the retention element configured to rotationally receive the at least one locking element to restrict axial movement of the syringe adapter.

A disposable fluid transfer and mixing device is disclosed and includes an injector support surface for receiving an injection device thereon. A lyophilized drug vial, a diluent vial and a syringe are also attached to the device. The device features fluid passageways and a manual valve that may be manipulated so that the syringe may be used to transfer diluent from the diluent vial to the lyophilized drug vial, for reconstitution of the drug. The valve may also be configured so that the reconstituted drug is transferred from the lyophilized drug vial to the injection device. An automated transfer and mixing device receives an injection device, a lyophilized drug vial and a diluent vial and transfers diluent from the diluent vial to the lyophilized drug vial and shakes or vibrates the lyophilized drug vial to reconstitute the drug. The device then transfers the reconstituted drug from the lyophilized drug vial to the injection device.

In one embodiment, the present disclosure relates to an add-on device (30) for an injection device (1), wherein the injection device (1) comprises a barrel (10) filled with a drug (8) and sealed by a stopper (9), the stopper (9) being movable distally (2) relative to the barrel (10) to dispense a dose of the drug (8), the injection device (1) comprises a machine-readable identifier (22) attached to or integrated with the barrel (10) or housing (11) of the injection device (1), and the add-on device (30) - Main unit (60) and, - A fastening structure (94, 94') that is connected to or integrated with the main body (60) and configured to be detachably connected to the stopper (9), - An electronic module (34) inside the main body (60), the electronic module (34) comprises a reading unit (39) that is operable to read information stored in or provided by a machine-readable identifier (22), Equipped with, - When connected to the stopper (9), the main body (60) and fastening structures (94, 94') are configured to transmit a user-applyable driving force to the stopper (9) to cause the stopper (9) to move relative to the barrel (10).

Embodiments of syringes and components thereof described herein provide reduced compliance from flexing or deformation, of not only the syringe barrel but also of the syringe plunger rod and plunger seal. Embodiments of syringes and components thereof described herein also provide improved sealing between the barrel and the syringe plunger rod, and improved resistance to pressure. Embodiments of syringes and components thereof described herein are advantageously suited for use with an infusion pump which may subject syringes to many start / stop operations over a period of hours, sometimes at very low flow rates.

A fluid delivery system is disclosed which comprises at least one first supply station for supplying a first fluid and at least one second supply station for supplying a second fluid different from the first fluid. The fluid delivery system further comprises a pressurizing unit for pressurizing the first and second fluids, said pressurizing unit comprising first and second pump modules, and each pump module comprising a chamber and a piston provided with a plunger to define first and second variable-volume sub-chambers. The fluid delivery system further comprises first and second inlet fluid circuits, first and second outlet fluid circuits, and a first recirculation fluid pathway fluidically connecting the first and second variable-volume sub-chambers of a pump module. Moreover, a first actuator is associated to said first recirculation fluid pathway for managing the fluid passage in both directions between said first and second variable-volume sub-chambers of said pump module. Methods of operating the fluid delivery system are disclosed too.

The present disclosure relates to the field of RNAs for the prevention or treatment of various infectious agents. In particular, the present disclosure relates to methods and agents for vaccination against coronavirus infection, influenza infection and / or RSV infection and induction of effective coronavirus, influenza virus and / or RSV antigen-specific immune responses, such as antibodies and / or T cell responses. Specifically, in one embodiment, the disclosure relates to a method comprising administering to a subject (i) a bivalent RNA vaccine encoding a peptide or protein comprising an epitope of SARS-CoV-2 spike protein (S protein), and (ii) a tetravalent RNA vaccine encoding a peptide or protein comprising an epitope of hemagglutinin (HA), the present invention relates to a method for inducing an immune response in a subject against a coronavirus S protein, in particular an S protein of SARS-CoV-2, and an influenza protein, in particular an HA protein of influenza A and B viruses.

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

A syringe (1) is provided with a tube (2), a plunger rod (3), and a plunger rod head (4). The plunger rod head (4) has a first surface (41) and a second surface (42). A finger grip component (5) is provided as a one-piece body attached to the tube (2), and includes an injection finger support surface (61) arched in a direction perpendicular to the longitudinal axis (A) with a first curvature for co-operative association with the first surface (41), and an aspiration finger support surface (62) arched in a direction perpendicular to the longitudinal axis (A) with a second curvature for co-operative association with the second surface (42).

A pharmaceutical composition containing high concentrations of opiranserin is disclosed. More specifically, the pharmaceutical composition contains opiranserin or a pharmaceutically acceptable salt thereof, a carrier selected from sodium benzoate, trisodium citrate, sodium salicylate, and mixtures thereof, and an injectable solvent.

An injector assembly is described that includes an absorbent pad containing a disinfectant and a rotatable cap to ensure compliance with aseptic technique for use in a flushing procedure of a vascular access device (VAD). A method of disinfecting a vascular access device is also described.

A dosage verification system for use prior to administering an injection of a medicinal fluid drawn into the fluid chamber of a medical syringe, the system comprising a medical syringe having a barrel with an outwardly facing, flat indicia display surface, a plunger having a plunger seal disposed inside and slidably engaging an inwardly facing wall of the barrel and a plunger handle projecting rearwardly from the barrel, and a hypodermic needle projecting forwardly from the barrel, all in combination with an imaging device configured to view and selectively capture, store or transmit a digital image of the plunger position relative to the barrel when a dose of the medicinal fluid is drawn into the fluid chamber of the barrel prior to an injection to verify and provide a record of the dosage drawn, and to alert a user prior to injection when an incorrect dosage is drawn into the fluid chamber of the syringe.