256 results about "Auto-Injector" patented technology

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.

An autoinjector (1) is disclosed. The autoinjector comprises a main casing (10); a cartridge assembly (30) disposed within the main casing (10). The cartridge assembly may include a cartridge (3) land a needle (40). A power pack (100) is disposed within the main casing (10) for moving the cartridge (31) and the needle (40) from a storage position to an injection position when actuated. An actuation unit (50) comprises a cartridge container (52) and a needle cover (60) disposed between the cartridge container (52) and the main casing (10). The actuation unit (50) is operably coupled to the power pack (110) and retractable from a first position to an actuation position for actuating the power pack. The needle cover (60) is extendable to an extended position covering the needle (40) when the cartridge (31) and the needle (40) are in the injection position. A safety cap (20) is removable from a mounted position on a front end of the main casing (10) to expose a front portion of the actuation unit (50).

This application relates to an injector device for delivery of a medicament, particularly to an auto-injector device. According to a first aspect of this disclosure, there is described an injection device comprising: an injection device body; a needle shroud retractable into the injection device body comprising a shroud pin; a control spring coupled to the needle shroud and biased to cause the needle shroud to be at least partially extended from the injection device body in an initial position; and a collar rotatable with respect to the injection device body and comprising a cam track engageable with the shroud pin; a hold detent mechanism coupled to the cam track of the collar, wherein the hold detent mechanism is configured to: activate, when the needle shroud is retracted from a first position on the cam track into the injection device body to a hold position on the cam track, by engaging the shroud pin thereby creating a hold detent force opposite a control spring force caused by compression of the control spring during said retraction of needle shroud to said hold position; and deactivate, when the needle shroud is extracted from the hold position on the cam track subsequent to the retraction towards a second position on the cam track, by disengaging the shroud pin thereby releasing the hold detent force and enable the needle shroud to extend from the injection device body to the second position on the cam track; and wherein the hold detent mechanism further comprises a non-return surface configured to, subsequent to the extension of the needle shroud, prevent further retraction of the needle shroud into the injection device body along the cam track towards the hold position.

The automatic injector comprises an injection assembly, the injection assembly comprises a sound production base, and the periphery of the sound production base is movably sleeved with a sound production part and a release part; a limiting block and a boss located on one side of the limiting block are arranged on the periphery of the sound production base, a boss slope is arranged on the side, facing the limiting block, of the boss, a limiting groove is formed between the boss slope and the limiting block, and the release piece is provided with a first protrusion capable of being clamped in the limiting groove. The first protrusion is provided with a first end face matched with the inclined face of the boss, a second end face matched with the limiting groove and a third end face matched with the limiting block. The automatic injector is reliable and practical, false triggering of the automatic injector can be effectively prevented under the accidental conditions such as falling, the impact resistance and the stability of a product structure after injection are remarkably improved, the problem of limiting failure caused by accidental stress is avoided, early sound production caused by early displacement of a push rod linkage piece can be effectively prevented, and the service life of the automatic injector is prolonged. And the stability of the sounding function of the automatic injector after injection is improved.

An auto-injector for administering a dose of a liquid medicament (M) is present having a tubular chassis telescopable in a tubular case, a carrier subassembly comprising a tubular carrier slidably arranged relative to the chassis inside the case, where the carrier is adapted to contain a syringe with a hollow injection needle. The injector also has a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier. A control spring is arranged around the carrier for translating the carrier in a proximal direction (P) for insertion of the needle through the chassis into an injection site.

An auto-injector for administering a dose of a liquid medicament includes an elongate tubular case and a carrier subassembly including a tubular carrier slidably arranged inside the case. The carrier is adapted to contain a syringe with a hollow injection needle, a drive spring, and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier, wherein the drive spring acts between the carrier and the plunger, wherein the plunger, in an initial state, is locked to the carrier by a ramped engagement to the carrier and by being prevented from rotating out of this ramped engagement, depending on a relative longitudinal position of the carrier in the case, and wherein the plunger is arranged to be released for rotating out of the ramped engagement.

A drug delivery device includes a housing, a syringe assembly including a barrel, a stopper, and a cannula, with at least a portion of the syringe assembly positioned within the housing, and a drive assembly including a plunger body configured to move the stopper within the barrel upon actuation of the drive assembly, with at least a portion of the drive assembly positioned within the housing. The plunger body has a pre-use position prior to movement of the plunger body, an injection position where the plunger body moves the stopper within the barrel, and a post use position where movement of the plunger body has stopped. The device further includes an audio indicator member configured to provide an audible indication of a transition of the plunger body from the injection position to the post-use position.

An auto-injector for administering a dose of a liquid medicament (M) is present having a tubular chassis telescopable in a tubular case, a carrier subassembly comprising a tubular carrier slidably arranged relative to the chassis inside the case, where the carrier is adapted to contain a syringe with a hollow injection needle. The injector also has a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier. A control spring is arranged around the carrier for translating the carrier in a proximal direction (P) for insertion of the needle through the chassis into an injection site.

An auto-injector for administering a dose of a liquid medicament includes an elongate tubular case and a carrier subassembly including a tubular carrier slidably arranged inside the case. The carrier is adapted to contain a syringe with a hollow injection needle, a drive spring, and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier, wherein the drive spring acts between the carrier and the plunger, wherein the plunger, in an initial state, is locked to the carrier by a ramped engagement to the carrier and by being prevented from rotating out of this ramped engagement, depending on a relative longitudinal position of the carrier in the case, and wherein the plunger is arranged to be released for rotating out of the ramped engagement.

An auto-injector includes a housing, a sleeve, a plunger rod, and a drive spring. The sleeve is sized to receive at least a distal portion of a syringe. The syringe is substantially symmetric about at least two planes that are perpendicular to one another. The plunger rod has an axially-extending portion that is substantially symmetric about the at least two planes, and a flange. The auto-injector has (i) a first state in which at least two axially-extending resilient arms hold the plunger rod in a first position relative to the sleeve to prevent a medicament from being dispensed from the syringe and (ii) a second state in which the at least two axially-extending resilient arms are allowed to deflect radially inward to release the plunger rod from the sleeve to allow the medicament to be dispensed from the syringe.

Systems, devices, and methods include an autoinjector including a housing; a needle arranged at a distal end of the housing; a container disposed within the housing and configured to contain medicament; and a plunger slidably disposed within the container. A plunger rod is configured to push the plunger through the container to dispense the medicament through the needle when the container contains medicament. The plunger rod includes one or more conductive regions. A mechanism is configured so that a dispensing movement of the plunger rod causes the mechanism to generate a first electrical signal from at least one of the one or more conductive regions. A first sensor is configured to detect the first electrical signal generated by the mechanism.

An autoinjector comprising a housing and a syringe assembly that carries a needle. A drive spring 8 is configured to urge a driver 10 to rotate, which controls delivery of a drug. Biasing means are

The application provides a liquid drop evaporation test bench with known flow field parameters, which comprises an observation column, an air inlet filter pipe, a transverse flow straightener, a ring flow straightener, a vortex chamber, an air outlet valve, an air outlet filter screen, a static drop pipe, an injection capillary tube and an automatic injector; one end of the observation column is fixedly connected with the vortex chamber through the air inlet filter pipe, the transverse flow straightener and the ring flow straightener; the air outlet valve is installed in the air outlet hole of the vortex chamber; the other end of the observation column is fixedly connected with the air outlet filter screen; the static drop pipe is installed in the static hole of the air outlet filter screen; one end of the injection capillary tube is connected with the injection hole of the automatic injector, and the other end is connected with the drop pipe hole of the static drop pipe; a plurality of sensor sealing columns are installed in the sealing through grooves on the observation column; and sensors are installed in the sensor holes of the sensor sealing columns. The application solves the problems of errors and unknowns in research results caused by uncontrollable and unmeasurable weak air flow disturbance determined by the disappearance of liquid surface tension and the increase of gas-liquid interface thickness under the transcritical / supercritical condition.

Disclosed example cap removal tools include: a cap removal adapter having a cap removal aperture; and a base, comprising: first alignment features configured to align the cap removal tool with an actuator of the autoinjector testing system; and second alignment features configured to removably attach the cap removal adapter to the base and align the cap removal adapter with the actuator.

The utility model belongs to the technical field of medical instrument detection, and discloses a detection device for an automatic injector. The detection device comprises a fixing assembly and a detection assembly, the fixing assembly can fix the automatic injector and keep the needle in the excited state, and then the detection assembly can accurately measure the extending length of the needle. The fixing assembly comprises a base and two supporting arms, the two supporting arms are arranged on the base in a spaced mode in the second direction, the base can abut against the end of the protection cover, each supporting arm is connected with an abutting block, the two abutting blocks can get close to each other in the second direction to fix the shell, and the base and the two abutting blocks jointly act in a matched mode. The needle head is always arranged on the protection cover in a protruding mode and is in an excitation state, and measurement accuracy can be improved when measurement is carried out at the moment.

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.

An autoinjector is configured to allow a user to suspend delivery of a medicament upon first activation of the autoinjector, and thereafter resume delivery of the medicament. The dose fractionated administration autoinjector may be operated to deliver a total desired dose of drug at multiple stages and / or at multiple injection sites.

Autoinjector This autoinjector (1) comprises an outer body (2) extending along a longitudinal axis A and configured for receiving a medical container (100) having a barrel (101) defining a reservoir for containing a medical product, said barrel (101) having a distal end (102) provided with an injection needle (103) sealed by a needle shield (104), and an opened proximal end provided with a radial flange (106) A needle cover (8) is axially movable along the longitudinal axis A between an initial position, a retracted position, proximally located with respect to the initial position, and a safety position, distally located with respect to the retracted position, in which the needle cover (8) shields the injection needle (103). A holding ring (6) is arranged within the outer body (2) for supporting the medical container (100), the holding ring (6) being axially movable between an initial position and a pricking position. The holding ring (6) is axially guided by the needle cover (8).

To improve an auto-injector.SOLUTION: There is provided a plunger assembly 100 for use with an auto-injector. The plunger assembly 100 comprises a cartridge 102, and a firing assembly 103 that includes a plunger rod 104 and a drive portion 105, the firing assembly 103 being axially moveable relative to the cartridge 102. The firing assembly 103 is configured to be coupled to the cartridge 102 at a coupling point along a length of the cartridge 102 to fix an axial position of the drive portion 105 relative to the cartridge 102 and wherein the length of the cartridge 102 is configured to be extended in a rearward direction such that the coupling point and a forward end 106 of the plunger rod 104 move rearwards.SELECTED DRAWING: Figure 1a

1. The name of this design product: spring pen. 2. Purpose of the product of this design: automatic syringe for injecting medicine. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic Drawing 1. 5. Designate Design 1 as the base design. 6. Other circumstances that require explanation: This design contains two similar designs.

This invention relates to a reusable autoinjector, belonging to the field of drug injection technology. The reusable autoinjector provided by this invention, through the systematic integration of an innovative anti-accidental contact mechanism and a needle depth adjustment mechanism, not only effectively solves the core safety and accuracy challenges in reusable scenarios, but also produces significant technical effects through the synergistic effect of the two mechanisms. It is the first invention to integrate two major functions—active mechanical anti-accidental contact and multi-level stable depth adjustment—into a single reusable device.

An injection device may include: a housing; the container is arranged in the shell, and the container is used for packaging fluid and is provided with a first end and a second end; a conduit movable relative to the container, where the conduit is not in fluid communication with the fluid encapsulated by the container when in a first position and is in fluid communication with the fluid encapsulated by the container when in a second position and configured to deliver the fluid from the container to a patient; and a lock, the lock being removable from the housing, the lock having a first portion and a second portion.

In one instance, disclosed herein is a system for assembling an auto-injector including a housing and a shroud, the housing including an opening, and the shroud including a coupling mechanism, the system comprising: a holder configured to control a movement the housing along a first direction; a brace configured to control a movement of the shroud along the first direction; and a pin extending from the brace, wherein in a first configuration, the pin is spaced apart from the housing and the shroud, and in a second configuration, the pin extends through both of the housing and the shroud, the pin configured to maintain the housing and the shroud in contact with one another until the coupling mechanism extends through the opening to couple the housing and the shroud.