A securing device for an injection device which receives a syringe with a proximal end portion having a radially outwardly projecting flange, has a body with proximal and distal end portions, an opening for accepting the syringe, an outer surface, and a proximal end surface for contacting a distally-facing surface of the flange when the syringe is advanced distally, preventing further advancement. A securing arm includes a free end; a base end fixed to the outer surface; a first portion extending radially outwardly from the base end to permit the flange to pass; and a second portion extending radially inwardly in a rest position, contacting the flange as the syringe is advanced. The securing arm is elastically flexible to allow the free end to move radially outwardly, allowing the advancing flange to pass, and is biased to the rest position to secure the flange and the syringe against proximal movement.

The disclosure relates to a sensor system for detecting a position of a movable plunger in a drug delivery device, the sensor system comprising a sensor capable of detecting a magnetic field, the sensor adapted to be fixed within a housing of a drug delivery device, and a ferromagnetic or permanent magnetic component magnetically interacting with the sensor and adapted to move relative to the sensor as the plunger is moved.

Implementations of the present disclosure are directed to an injection device that includes a medicament reservoir, a stopper including a rigid core and an ultrasound probe disposed in a housing, the ultrasound probe configured to transmit an emitted ultrasound signal through the rigid core along a longitudinal direction of the rigid core into the medicament reservoir and to receive an ultrasound signal generated by reflections of the emitted ultrasound signal, the reflections including at least a reflection from a distal end of the medicament reservoir, a control component configured to be electronically coupled with the ultrasound probe and to process the ultrasound signal to generate injection device data, and an antenna configured to be electronically coupled with the control component and to transmit the injection device data to an external computing device.

An automatic medication injection device that provides a user with audible notice of injecting progress. The device in one form includes a plurality of sound elements located on drive mechanism portion that inserts within a barrel of a container of medication to advance a sealing plunger of that container. The device also includes at least one actuating element movable axially with the container of medication within the device housing, which at least one actuating is element arranged to engage the plurality of sound elements to generate audible notices as the advancing portion moves past the at least one actuating element when advancing the sealing plunger for an injection.

Drive systems for a drug delivery device are provided. The drive systems can be positioned within a container that stores a liquid drug to be delivered to a user. The drive systems can be coupled to a plunger positioned within the container. The drive systems can be incrementally advanced to drive the plunger further into the container, thereby expelling a portion of the stored liquid drug from the container for delivery to the user. The container can be any type of container including a pre-filled, standardized drug cartridge. The drive systems and container can be components of a wearable drug delivery device.

An injection device includes a housing; an actuation member movable between a first position relative to the housing and a second position relative to the housing, wherein the actuation member is arranged to inhibit a mechanical operation of the injection device when the actuation member is in the first position, and allow the mechanical operation of the injection device when the actuation member is in the second position; electronic circuitry; and an actuation sensing arrangement, wherein the actuation sensing arrangement is configured to detect movement of the actuation member from the first position relative to the housing to the second position relative to the housing, and wherein the electronic circuitry is configured to be activated in response to detection by the actuation sensing arrangement that the actuation member has moved from the first position relative to the housing to the second position relative to the housing.

An injection device comprises a housing, a cartridge defining a chamber configured to hold a medicament, a plunger disposed within the chamber, and a plunger actuation assembly configured to drive the plunger. The injection device also comprises a power source configured to drive the plunger actuation assembly such that the plunger forces the medicament from the chamber a first disengagement element translationally fixed relative to the plunger actuation assembly, and a second disengagement element coupled to the plunger actuation assembly and to the power source, where the second disengagement element is translationally fixed relative to the plunger actuation assembly. The first disengagement element is configured to translationally decouple from the plunger actuation assembly when the power source drives the plunger actuation assembly a first distance, and translationally decouple the second disengagement element from the plunger actuation assembly when the power source drives the plunger actuation assembly a second distance.

A dosing device for an injection device, the dosing device including an actuating element for adjusting and/or dispensing a dose from the injection device, a thrust element for generating a forward movement for discharging a dose and a coupling to which the actuating element and the thrust element are coupled such that a rotational movement of the actuating element is transmitted directly to the thrust element and an axial movement of the actuating element is different than an axial movement of the thrust element.

The present invention relates to a medicament delivery device that is reliable, safe and intuitive to use and configured to prevent a subsequent does from being administered before a previously initialized dose has been fully delivered. This is accomplished by mechanically interacting structures arranged as an interface between a lockable delivery button and a release member.

A dosing device for an injection device, the dosing device including an actuating element for adjusting and/or dispensing a dose from the injection device, a thrust element for generating a forward movement for discharging a dose and a coupling to which the actuating element and the thrust element are coupled such that a rotational movement of the actuating element is transmitted directly to the thrust element and an axial movement of the actuating element is different than an axial movement of the thrust element.