149 results about "Auto-Injector" patented technology

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 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 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 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.

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).

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.

The present invention relates to an autoinjector comprising a dual chamber component comprising first and second chambers for storing first and second elements of a medicament that can each be stored in the respective first and second chambers of the dual chamber component, a piston rod, an inner body and an outer body, wherein the inner body and the outer body are in engagement with one another in a first configuration in a storage state and, on activation of the autoinjector are moved towards one another and then fixedly clipped to one another in a second configuration.

A training device may include a housing having a tissue engaging surface; an activation switch configured to move from a deactivated configuration to an activated configuration; a touch sensor disposed on the tissue engaging surface and configured to detect contact with skin or a synthetic injection surface; a motor; and a controller, the controller being coupled to the motor. The controller may be configured to: receive a first indication that the activation switch has moved to the activated configuration; receiving a second indication that the touch sensor has detected contact with skin or a synthetic injection surface; and the motor is driven for a predetermined period of time.

An autoinjector, the autoinjector comprising: a housing; and the medicine cylinder is arranged in the shell, and the medicine cylinder is used for packaging medicine. The autoinjector further includes a fluid conduit configured to deliver the medication from the cartridge to a patient and movable from a retracted configuration to a deployed configuration associated with administration of the medication; and a temperature sensor configured to determine a temperature of the drug. And the temperature sensor is configured to send a first signal to an external device when the temperature sensor senses that the temperature of the medicine rises to a threshold temperature or above.

The auto-injector includes a housing and a cartridge located within the housing, the cartridge containing a drug. The auto-injector further includes a fluid conduit that is movable from a retracted configuration to an deployed configuration and configured to deliver the drug from the cartridge to the patient, and a temperature sensor configured to measure the temperature of the drug. A controller is coupled to the temperature sensor and is configured to transmit a first signal to an external device if the temperature sensor detects that the temperature of the drug has risen above a threshold temperature.

An injection device comprising a housing to house a syringe, an activation member, a drive mechanism to, upon activation by the activation member, drive a plunger driver between a first position and a second position to operate the syringe within the housing and a damping mechanism configured to damp movement of the plunger driver in either a forward motion or a rearward motion. The plunger position may affect an amount of travel of the plunger driver before it is in contact with the plunger and the plunger is in contact with a drug within a barrel. During travel, a drive force may cause rapid acceleration of the plunger driver, and damage to the syringe or discomfort to an injection recipient when contact between the plunger driver, the syringe, and the recipient is made. Damping of the forward motion of the plunger driver reduces or overcomes the risk of this.

Provided is a vented needle hub assembly for infusion of a liquid into subcutaneous tissue. More specifically, the vented needle hub assembly is provided by a needle hub having an inlet side and an outlet side and a fluid passageway therebetween; an infusion needle in fluid contact with the fluid passageway and extending from the outlet side; a flexible tubing having a first end joined to the inlet side in fluid contact with the fluid passageway, and a second end; at least one vent disposed in a sidewall of the needle hub, the vent in fluid contact with the fluid passageway; and a porous plug disposed within each at least one vent adjacent to the fluid passageway, the porous plug structured and arranged to distinguish gas from liquid, gas permitted to pass from the fluid passageway through the porous plug and out the at least one vent; and a reservoir of liquid provided as an autoinjector, the second end of the flexible tubing interconnecting the reservoir of liquid to the inlet side for fluid communication from the reservoir to the needle hub. An associated method of use is provided as well.

A medicament delivery device, the medicament delivery device comprising: a housing; a container provided within the housing and configured to contain a medicament; the plunger is arranged in the container in a sliding manner; a plunger rod configured to urge the plunger through the container to dispense the medicament when the container contains the medicament; and a gas canister configured to travel with the plunger rod and contain compressed gas, where the gas canister is configured to release the compressed gas to drive the plunger rod to dispense the medicament out of the distal end of the container.

The application relates to an injection pen pre-filled needle carrier assembly and an automatic injection device. The injection pen pre-filled needle carrier assembly comprises a housing with a cavity, a carrier in the housing, the carrier being provided with a central through hole and at least one first clamping jaw extending towards the proximal end, and a pre-filled needle module comprising a syringe body and a needle cover at the proximal end of the syringe body, the syringe body being provided with a shoulder at the distal end of the needle cover. In the preset installation position, the first clamping jaw of the carrier is constrained by the inner wall of the housing and is contracted towards the center, and is clamped between the opening end of the needle cover and the shoulder. In the free state, the inner diameter of the first clamping jaw is greater than the outer diameter of the needle cover and the syringe body, so that the pre-filled needle module can be pushed into the preset installation position at one time.

A housing for hypodermic device including a housing assembly, a hypodermic device housed therein, twist off top and bottom caps. The housing assembly includes an upper and lower ends, exterior and interior walls. The exterior and interior walls definine a vacuum sealed in-between space, and the interior wall defines an interior cavity. The top and bottom caps include first and second tabs, respectively. The hypodermic device has proximal and distal ends. The hypodermic device includes auto injectors such as epinephrine auto injector, insulin auto injector or similar. The exterior and interior walls are vacuum sealed layers made of a rigid material that protect the hypodermic device from impact and accidental activation and keep the hypodermic device at a range of temperature for a longer period of time. A ring attachment is adjacent to the upper end, and it secures to backpacks, purses, garments or similar.

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.

The present invention provides an automatic infusion device, cartridges, a system, and a method for improving the preparation and administration of drugs using an automatic infusion device. [Solution] An automatic injector 4 for administering a drug, comprising a housing 6, a cartridge housing 300 having first and second cartridge compartments configured to receive a cartridge and containing first and second drug components, and a drive module and processing unit configured to move a plunger rod between a retracted position and an extended position, the processing unit comprising the steps of: controlling the drive module to move the plunger rod from a first position to a mixing position at a mixing speed, controlling the drive module to position a first stopper at a position where the first and second drug components are mixed, and providing a start signal after a certain number of complete reversals of the automatic injector 4 have been performed.

An injector includes a housing having a proximal end and a distal end extending along a longitudinal axis. A drug container contains a volume of a drug. A button coupled to the housing is rotatable about the longitudinal axis between a locked position and an unlocked position and is movable along the longitudinal axis between a pre-fired position and a fired position. A latch is disposed at least partially within the button, a striker is movable relative to the latch, and an energy source distally pushes the striker along the longitudinal axis. Movement of the striker relative to the latch is prevented by the button in the pre-fired position. Rotating the button to the unlocked position and distally moving the button relative to the housing along the longitudinal axis into the fired position allows the striker to move relative to the latch.

The invention relates to an autoinjector comprising a dual chamber cartridge.

An autoinjector for dispensing a liquid product includes a housing; a product container arranged in the housing, particularly, a syringe comprising a displaceable piston; a drive member; a first spring which acts on the drive member and the piston to dispense the product from the container; signal element releasably axially coupled with the drive member so that the signal element is transported in the dispensing direction as the drive member is displaced; and a second spring, which exerts a spring force on the signal element against the dispensing direction and is tensioned as the signal element is transported in the dispensing direction. When the signal element is released or detached from the axial coupling, the second spring causes the signal element to accelerate opposite the dispensing direction and strike against a signal stop and generate an acoustic and / or tactile signal.

The present invention discloses an autoinjector assembly (100) comprising: a housing (102); a syringe assembly (202) for storing a predetermined volume of drug to be administered; a needle protector (212) surrounding the syringe assembly (202) such that a portion of the needle protector (212) is adapted to extend out of the housing (102) in an initial state and retract into the housing (102) when the portion is pressed against an injection site; a spring retainer (218) for holding a dose delivery spring (216) in a compressed state; a locking unit (220) for holding the spring retainer (218) in a locked state; and a plunger (222) engaging the spring retainer (218) and adapted to move toward the syringe assembly (202) when the spring retainer (218) is unlocked. The engagement position of the plunger (222) with the spring retainer (218) is adapted to change so as to control the travel distance of the plunger (222) within the housing (102) based on a predetermined volume of drug in the syringe assembly (202).

This invention relates to the field of auto-injector technology and discloses a fully automatic intelligent high-pressure needleless injector, comprising a main body, a needleless injection head detachably mounted on the injection end of the main body, a gripping drive assembly disposed in the middle of the inner cavity of the main body, and an impact assembly connected to the gripping drive assembly disposed in the inner cavity of the main body at the end away from the needleless injection head, and a charging assembly disposed on the inner cavity and outer end of the main body on the same side as the impact assembly; the invention, by providing a gripping drive assembly and an impact assembly, facilitates users to set the required drug injection volume and injection pressure parameters via a mobile APP, and transmits the information to the injector's control module via Bluetooth communication. The control module analyzes the received injection volume and injection pressure parameters and realizes an intelligent integrated control process for automatic drug replenishment and automatic injection of the needleless injector, improving the control capability of drug injection dosage and force.

Illustrated and described is a dispensing device (2) for dispensing at least one therapeutically and / or diagnostically effective substance, particularly a holding device (1) for an autoinjector. In the present invention, the holding device (1) is embodied as a multiple holder for holding two or more dispensing devices (2) on the holding device (1), and for dispensing substances through at least one dispensing device (2) held on the holding device (1) in a manner that holds the dispensing devices (2).

An autoinjector includes a housing extending along a longitudinal axis having a proximal end and a distal end. A needle extends at least partially from the distal end of the housing. A needle guard assembly is coupled to the housing. The needle guard has a needle guard extension that is moveable relative to the housing distally along the longitudinal axis from a retracted position where the needle extends distally past the needle guard extension and an extended position where the needle guard extension extends distally past the needle. A retainer is coupled between the needle guard extension and the housing to retain the needle guard extension relative to the housing in a blocking position and is moveable relative to the housing to an unblocked position to allow the needle guard extension to move relative to the housing to the extended position.

The present invention provides an auto-injector and related methods that optimize administration accuracy, such as reducing residual drug after injection, and prevent drug leakage through or around the cartridge's end stopper. [Solution] Disclosed is a method for administering a drug and an automatic injector 4. The processing unit is configured to control a drive module to push a plunger rod at a plunger rod speed and move it toward a plunger rod position, to determine the plunger rod position, to receive a resistance signal, and to control the drive module to adjust the movement of the plunger rod when the resistance signal indicates resistance to movement of the plunger rod beyond a high resistance threshold, the high resistance threshold being based on the plunger rod position.