Disclosed is a syringe for a micro-dosing syringe pump. The syringe includes a reservoir having an outlet port; a plunger having a track, with the plunger received inside a portion of the reservoir; a plunger driver comprising a gear connected to one end of a shaft and a pin located adjacent an opposite end of the shaft, with the plunger driver received inside the plunger and with the pin located inside and engaging the track. In use, rotation of the gear in a first direction advances the plunger into the reservoir a first distance as the pin travels in the track and rotation of the gear in a second direction opposite the first direction advances the plunger a further distance into the reservoir as the pin travels in the track. The design prevents excess dosing in a runaway motor failure.

Fluid dispensing device, having a pump connected to a reservoir and to a head. A piston (22) is connected to a piston rod (25) and provided with a push-button (26) to actuate the pump. A spring (27) brings the piston to the rest position after actuation. The body has a T-like connection (24), with a first branch connected to the metering chamber, a second branch connected to the reservoir and a third branch is connected to the head. A first valve (41) is provided in the second branch and a second valve (51) in the third branch, the valves are urged against the first and second respective valve seats (43, 53). The device has dose a adjustment (28, 29) cooperating with the piston rod and has a bush (29) coaxially around the piston rod movable to adjust the rest position of the piston.

An electronic module is configured for attachment to a proximal end of a drug delivery device in a predefined fastening configuration. The drug delivery device comprises an elongated housing extending in a longitudinal direction and comprising a distal end and the proximal end. The electronic module comprises a mechanical coding comprising a mechanical coding feature to engage with a mechanical counter coding feature of a mechanical counter coding provided at the proximal end of the drug delivery device, wherein one of the mechanical coding feature and the mechanical counter coding feature comprises a protrusion extending in the longitudinal direction and wherein the other one of the mechanical coding feature and the mechanical counter coding feature comprises a recess, wherein, in some configurations, the mechanical coding and the mechanical counter coding are operable to prevent a fastening of the electronic module to the drug delivery device.

A device for administering a fluid can include a cylinder, a piston connected to a piston rod, and a tensioning device connected to the piston rod. The tensioning device includes a ramp which is rotatable via a motor, a ramp track, and a roller. A dose setting means can be provided which comprises a spacer and a movement unit. The spacer moves from a neutral position into an active position such that the driver is stopped by the spacer so the piston stroke during the movement of the piston to the open dispensing end is shorter in comparison to the case in which the spacer is in its neutral position. The spacer has a through bore in which a spindle with a spindle thread is guided. A pin protrudes into the spindle thread. The spindle thread leads at at least one of its two ends into an annular groove.

Provided is a dosage adjuster for a syringe including: a dosage setting part configured to set the amount of dosage usable out of a liquid medicine filled in the syringe; and a setting restriction part configured to switch between a restricted state in which change in setting of the amount of dosage set by the dosage setting part is restricted and a permissible state in which the change in the setting of the amount of dosage by the dosage setting part is permissible.

Various exemplary drug delivery device sensing modules and methods of using drug delivery device sensing modules are provided. In general, a sensing module can be configured to be attached to a drug delivery device configured to deliver a drug. The drug delivery device can be any of a variety of types of drug delivery devices, such as a syringe, an injection device (e.g., an autoinjector, a jet injector, and an infusion pump), a nasal delivery device, and an inhaler. The sensing module can be configured to gather data for one or more parameters related to drug delivery and to transmit data indicative of the gathered data to an external source configured to analyze the data received from the sensing module.

Implementations of the present disclosure are directed to conserving energy of an injection device that includes an energy source configured to power an electronic component, a priming component configured to generate a trigger, a reactant configured to generate an instantiation signal in response to the trigger, and a sensor configured to detect and process the instantiation signal and generate an activation signal to activate the energy source.

A stopper is disclosed herein. The stopper is configured to be disposed within a medical cartridge. The stopper includes a shell defining a cavity, a core arranged within the cavity, and at least one electronic device embedded within the core, wherein the at least one electronic device includes a sensor and wherein the shell is configured to pass a sensing signal therethrough.

An injection device including a stopper and an electromechanical switch. The stopper includes an electronics assembly. The electromechanical switch is operable to be activated to power the electronics assembly. The stopper is configured to transition between a first size and a second size to activate the electromechanical switch.

A drug delivery system including: an oblong housing including a setting structure to set a dose of a drug via an angular position; and a sensor structure to determine the dose, including a magnet and a magnetic sensor, arranged so that at least one of an angular position and a displacement of the magnetic sensor relative to the magnet may be determined as a function of the electrical resistance of the magnetic sensor. The sensor structure is arranged in relation to the setting structure so that the angular position of the setting structure is determined as a function of the angular position and/or the displacement of the magnetic sensor. A sensor structure is also described including: a flexible foil, including a magnetic sensor, in a cylindrical shape configuration comprising an axis; and a magnet arranged at a line parallel to or collinear with the axis.