1190results about "Ampoule syringes" patented technology

The invention discloses an automatic injection pen with a double-cavity structure, and belongs to the technical field of medical instruments. Comprising a shell, a refill frame, a double-cavity clamping type bottle, a push rod, a base, an unlocking piece, a releasing piece, an injection spring and a button, the push rod is provided with a first hook hole, the base is provided with a first clamping hook matched with the first hook hole, the base is further provided with a second hook hole, and the unlocking piece is provided with a second clamping hook matched with the second hook hole; the unlocking piece is used for keeping or releasing matching of the first hook hole and the first clamping hook; and the release piece is used for keeping or releasing matching of the second hook hole and the second clamping hook, so that before the release piece releases the second hook hole and the second clamping hook, the button cannot be pressed down, and the unlocking piece cannot slide by pressing the button. The release piece and the unlocking piece ensure that double-cavity liquid medicine cannot be triggered before being mixed, operation is easy, stability is high, and a patient can conveniently and safely conduct injection.

The disclosure relates to an audible indicator in combination with a drug delivery device having a resilient force member capable of resting in either of two states. In a biased state, the resilient force member is biased and stores energy and in a relaxed state, the resilient force member is relaxed. The resilient force member releases the stored energy when changing from the biased state into the relaxed state, thereby generating an audible signal, wherein the resilient force member is supported by a retaining element in the biased state in order to prevent transition into the relaxed state.

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.

Medication delivery methods, devices and systems are provided, the medication delivery device includes user interface elements, control circuitry, and a memory. The method includes receiving analyte measurement data of a user, presenting information related to the analyte measurement data to the user, and determining an intended dose of medication based on at least one of the analyte measurement data, optionally, therapeutic relevant conditions, therapy parameters, or a calculated insulin-on-board (IOB) value. When the user is queried to indicate that the user is ready for the delivery without presenting the intended dose on any of the one or more user interface elements of the medication delivery device, the intended dose is automatically delivered after receiving the user's indication.

A hold assistance device for use with a medicament delivery device is described. The hold assistance device includes: a housing configured to be coupled to a medicament delivery device; a chamber for containing air, the chamber having a proximal end and a distal end; and a piston movable within the chamber between the proximal and distal ends of the chamber, wherein the piston is arrangeable in an activated position inside the chamber in which the piston is arranged proximate to the proximal end of the chamber such that the chamber is at least partially evacuated of air and movement of the piston towards the distal end of the chamber is resisted by a vacuum force.

The present invention relates to a pre-assembled reconstitution and injection device, comprising an injection section having a cartridge for holding a diluent or drug product and a reconstitution section having a vial for holding a drug, whereby the injection section may only be disassembled from the reconstitution section after activation of the device has occurred. In an embodiment for use with a pen needle, the reconstitution section comprises a vial needle hub having a reconstitution needle for piercing both the vial and cartridge. In an embodiment of the invention for use with a hypodermic needle, the injection section comprises a cartridge needle hub with a cartridge needle and male luer connection having threads for securing a hypodermic needle, and the reconstitution section comprises a needle hub with a vial needle and a female luer connection for engagement with the male luer connection.

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.

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.

The present invention relates to the field of injection pens, and in particular, to an electronic injection pen and a control method therefor. The electronic injection pen comprises an injection pen body and a control module. The injection pen body is hollow inside, with both front and rear ends provided as openings. The front end of the injection pen body is detachably connected to a medicament loading part, and the medicament loading part is configured to load a cartridge bottle. The injection pen body is internally provided with a pushing part, and the pushing part comprises a push rod. Driven by a drive motor, the push rod can abut against a rubber stopper inside the cartridge bottle. The control module comprises a pressure sensor disposed inside the injection pen body, and a control knob disposed at one end of the injection pen body away from the medicament loading part. The pressure sensor is coupled to the drive motor to detect the force exerted by the drive motor on the push rod. The control knob has two input signals: rotation and pressing, which are configured for switching and confirmation of an injection pen program, respectively.

A fluid administration device is disclosed. According to one example implementation, the fluid administration device includes a connector, a tube, and an applicator. The connector is configured to connect to a corresponding device, such as a syringe or other vessel filled with medication, colostrum, or other fluid. A proximal end of the tube can be affixed to the connector. A distal end of the tube can be connected to the applicator. Fluid from the corresponding device can flow into the fluid administration device via the connector, into the tube, and into the foam applicator. The applicator can be inserted into the buccal cavity of a patient and massaged along the buccal mucosa to administer the fluid.

The invention discloses a double-cavity clamping type bottle injection pen which is characterized in that a lower shell wraps the outer part of a double-cavity injection tube, and the upper part of the double-cavity injection tube is communicated with an injection push rod in the vertical direction; a first piston and a second piston are arranged in an inner cavity of the double-cavity injection tube, so that a first cavity is formed by the first piston and the bottom of the double-cavity injection tube, and a powder medicament or a liquid medicament A is contained in the first cavity; a closed second cavity is formed in the inner cavity of the double-cavity injection tube between the first piston and the second piston, and a liquid medicament B is contained in the second cavity; a communication bridge protruding outwards is arranged on the inner wall of the double-cavity injection tube, the first cavity and the second cavity can be communicated through the communication bridge by pushing the first piston and the second piston to move, and mixing of the medicine liquid B and the powder medicine or the liquid medicine A is achieved. Through the modular design, the double-cavity medicament injection function which is compact in structure and easy and convenient to operate is achieved, and the device is particularly suitable for biological agent or vaccine injection scenes needing on-site mixing.

A computer-controlled injector, including a housing arranged along a longitudinal axis and configured to receive a cassette assembly, containing a medicament cartridge; the housing includes a cassette assembly receiving volume and a cassette assembly insertion and removal opening communicating with the cassette assembly receiving volume; at least one locking element for locking the cassette assembly with respect to the housing upon axial insertion of the cassette assembly into the housing; and an injection drive mechanism including a computer-controlled motor for driving a piston, forming part of the medicament cartridge, for injecting a medicament, the computer-controlled motor also being operative for operating the at least one locking element for releasing the cassette assembly from the housing.

To provide methods, systems, and devices that support users in making appropriate treatment decisions while minimizing the burden on the user. [Solution] A monitoring mechanism for an insulin delivery device, such as a pen cap, may include at least one circuit adapted to detect at least one of the cap being attached to an insulin pen or the cap being removed from an insulin pen, and a processor for using information regarding at least one of the cap being attached to or removed from the pen cap. The monitoring mechanism for an insulin delivery device includes at least one circuit adapted to detect the use of the insulin delivery device.

A glass syringe barrel is provided that has an at least partially conically shaped upper portion and a longitudinal axis. The glass syringe barrel has a top end through which a liquid can be ejected and a bottom end into which a plunger stopper can be pushed. The glass syringe barrel includes, in a direction from the top end to the bottom end, a cone, a shoulder region, and a body region. The shoulder region has and outer contour that has a concave and substantially circular arc-shaped area c1 with an outer radius r1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain minimum value the radius of curvature.

An autoinjector comprising a compressed gas source including a rigid container having a non-rigid sealing structure, and a syringe with a seal and a plunger stopper defining a working space between the plunger stopper and the seal. The autoinjector further comprises a puncture needle that is fluidly coupled or connectable to the working space. The puncture needle is further axially aligned and selectively pierces the non-rigid sealing structure of the compressed gas source upon relative axial movement between the non-rigid sealing structure of the compressed gas source and the compressed gas source to fluidly couple the puncture needle to the compressed gas source.

The techniques described herein relate to computerized methods and apparatus for determining a dose injected into a user by one or more medication delivery devices. Data is accessed that is indicative of an injection event group that includes one or more injection events associated with one or more medication delivery devices. The injection event group is processed to determine the dose injected into the user based on one or more of whether the injection event is associated with a medication delivery device change, a dose size of one or more of the injection events, a position of one or more of the injection events in the injection event group, and / or a time period between one or more injection events to a next injection event in the injection event group.

An instrument delivery device for coupling to a vascular access device. The instrument delivery device may include a housing (14), which may include a distal connector (16), a proximal connector (18), and a lumen extending through the distal and proximal connectors. The instrument delivery device may include a vascular access device (12), which may include a distal end (22) and a proximal end (24). The vascular access device may be disposed within the lumen of the housing in a coiled position. The vascular access device may be configured to move from the coiled position to an uncoiled position and advance through the distal connector. The vascular access device may extend through the vascular access device into the patient's vasculature.

An injection device comprising: a main body for receiving a syringe containing a medicament: and a drive mechanism within the main body and having a plunger driver movable through the main body. the drive mechanism comprising one or more drive springs that can be primed and released to move the plunger driver, the drive mechanism further comprising one or more damping elements of a resilient material for contacting the or each drive spring and thereby damp vibrations of the spring or springs following release.

The present invention comprises a pen casing (1), said pen casing (1) being provided at its ends and internally with a loading portion (2) and a thrust portion (4); said pen casing (1) is circularly closed, its two ends having openings for connecting the loading portion (2); said pen casing (1) and said thrust portion (4) are respectively equipped with a primary electronic component (6) and a secondary electronic component (7); said primary electronic component (6) comprises a charging port, said secondary electronic component (7) comprises a primary printed circuit board (71) and a spring-loaded needle (73) fixed perpendicularly to the axis on the primary printed circuit board (71). (Figure for abbreviation: Fig. 1)

A gasket pressing tool 3 includes a syringe attachment member 4 attached to an outer tube 20, a gasket pressing member 8 that presses a gasket 22 of a syringe, a pressing member biasing body 11 accommodated in the gasket pressing member, a biasing body pressing tubular member 6 that accommodates a rear end portion of the pressing member biasing body and has side portions provided with opening portions 64 and 65, and movement restriction members 7a and 7b of the pressing member 8 held by the tubular member 6 and having engagement protrusions 72 that enter through the opening portions 64 and 65 of the tubular member 6. The pressing tool 3 has an engaged state maintaining function for the engagement protrusion 72 of the movement restriction member and the pressing member-side engagement portion 83 of the pressing member 8, and an operation function for the engagement protrusion 72 for releasing the engagement therebetween.

A therapeutic agent delivery system includes a housing. A drive wheel is carried by the housing, the drive wheel being rotatable relative to the housing from a first rotational configuration to a second rotational configuration. A plunger rod is rotatable with the drive wheel relative to the housing from the first rotational configuration to the second rotational configuration. The plunger rod is translatable relative to the housing from a first translational configuration to a second translational configuration. A plunger restraint maintains the plunger rod in the first translational configuration when the plunger rod is disposed in the first rotational configuration. The plunger restraint permits the plunger rod to translate to the second translational configuration when the plunger rod is disposed in the second rotational configuration. A needle is movable relative to the housing from a stowed configuration to a deployed configuration, and from the deployed configuration to a withdrawn configuration. The needle is moved from the stowed configuration to the deployed configuration by the plunger rod when the plunger rod moves from the first translational configuration to the second translational configuration. A therapeutic agent delivery assembly carries a therapeutic agent and is in fluid communication with the needle. A retraction mechanism is translatable relative to the housing from a third translational configuration to a fourth translational configuration. The retraction mechanism moves the needle from the deployed configuration to the withdrawn configuration when moving from the third translational configuration to the fourth translational configuration.

Devices for delivery of individual units of a medicament and methods for their use are provided. Such a delivery device comprises an exostructure permanently attached to a syringe comprising a barrel and a plunger with one or more ratchet surfaces, a cam mechanism to advance the plunger a plurality of set distances in a first direction to deliver a single individual unit of the medicament per each set distance, and a locking pawl to prevent the plunger from being retracted in a second direction opposite the first by interfacing with the ratchet surfaces. The locking pawl also produces tactile feedback, audible feedback, or both when the plunger is depressed to advance the plunger the set distance. Each of the individual units comprise a measured volume of the medicament, and the plunger can repeatedly be depressed and repeatedly engage with the locking pawl to deliver repeated measured volumes of the medicament.

The invention relates to a piston assembly (10, 110) containing a body (30, 130) having a first cylindrical cavity (12) and a piston (16, 116) that can be displaceably guided in the first cylindrical cavity (12) and has a piston seal (20, 120) for sealing against the inner wall (22) of the first cylindrical cavity (12), wherein sealing forces can be absorbed on the inner wall (22) of the first cylindrical cavity (12), which forces can be generated by the piston seal (20, 120) in the radial direction, characterised in that a relief cavity (14, 114) is provided in which the piston seal (20, 120) located on the piston (16, 116) can be stored free of sealing forces until use.

The forming device (4) for the receiving cone (8) of a needle in the syringe body (12) of a glass syringe includes a forming tool (16) shaped to create a hole (20) for producing the receiving cone (8) and a lubricant / coolant injection device (24). The forming tool (16) includes a gripping portion (28), a tip (32), and a tip body (36) disposed between the tip (32) and the gripping portion (28) and configured to create the hole (20). The gripping portion (28), tip body (36), and tip (32) are integral and aligned along a major axis (XX). With respect to a cross section perpendicular to the major axis (XX), the tip body (36) has a non-circular cross section, and in the cross section perpendicular to the major axis (XX), the non-circular cross section is inscribed in a maximum circle (40) whose radius is the maximum distance between a point (P) on the cross section and the major axis (XX).

A medication delivery device includes a disposable portion and a reusable portion. The disposable portion includes a therapeutic agent delivery assembly, and the therapeutic agent delivery assembly includes a needle. The therapeutic agent delivery assembly is translatable from a stowed configuration to a deployed configuration. The reusable portion includes a first rack and pinion mechanism and a second rack and pinion mechanism. The first rack and pinion mechanism is actuatable to translate the therapeutic agent delivery assembly from the stowed configuration to the deployed configuration. The second rack and pinion mechanism is actuatable to translate a plunger and thereby cause the therapeutic agent delivery assembly to deliver a therapeutic agent from the needle.

1. A dose delivery mechanism comprising a piston rod and a nut, the piston rod forming an external thread that mates with the internal thread of the nut, and wherein, during setting of a dose, the nut is configured to rotate relative to the piston rod to advance the nut distally a first distance relative to the piston rod; a dose delivery mechanism comprising an actuating member that can be moved by a user to achieve delivery of a set dose, and a housing, wherein a second threaded connection is provided, the second threaded connection being configured to move the actuating member distally a second distance during setting of a dose, the actuating member being coupled to the piston rod via the nut during delivery of a dose, and wherein moving the actuating member proximally the second distance advances the piston rod proximally the first distance, the second distance being less than 1.5 times the first distance.