A drive assembly for a drug delivery system includes a plunger member configured to engage and move a stopper within a container, with the plunger member having a first position and a second position axially spaced from the first position, a leadscrew configured to move the plunger member from the first position to the second position, and a biasing member configured to bias the leadscrew in a rotational direction, where rotational movement of the leadscrew is configured to move the plunger member from the first position to the second position.

The present disclosure relates to a drug delivery device, comprising a housing, a cartridge, the cartridge containing a drug in a quantity sufficient for a plurality of doses of the drug, a bung, the bung being movably retained within the cartridge to dispense a dose of the drug from the cartridge upon movement of the bung with respect to the cartridge, and a drive mechanism, the drive mechanism being operable to transfer a driving force to the bung to dispense the dose of the drug from the cartridge. The drug delivery device is configured such that the maximal driving force which is transferrable to the bung via the drive mechanism varies and is adjusted to the current position of the bung within the cartridge.

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.

Methods of actuating a needle array device can include causing fluid to move through flow channels to needle apertures that are spaced apart from an inflow aperture at different distances where flow channels that have approximately equal pathway lengths and where the fluid can reach tips of the needle apertures approximately simultaneously, which can provide an approximately equal dosage or fluid volume through the tips of the needle apertures.

Aspects of the present disclosure disclose a system for delivering medication. In one aspect, the disclosure is directed a kit that includes a medical dispensing device with a label with a series of zones of varying widths, with each of the zones corresponding to a pre-determined volumetric dose of the drug that is correlated to one of the physical characteristics of a patient. In one specific example, the label is further affixed to the medicine dispensing device such that the smallest dose of the drug to be administered corresponds to a first zone that is proximate an opening through which the drug is to be dispensed.

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.

A medicament delivery device for injections or inhalations comprises a supplementary device affixed to it. The supplemental device is provided with an optical system for monitoring a dosage of medicament. The optical system is able to receive reflected and refracted optical images of the dosage value as the optical signals from the medicament delivery device and thus keep a dosage window on the medicament delivery device free for direct monitoring by a user due to changing the transferring of the optical signal direction. The supplemental device is able to analyze, record and display the dosage and the other relevant data on a display and inform the user. The supplemental device is also able to transmit the medicament delivery data to an external device. A method for collecting the medicament delivery data including the medicament dosage information from a dosage setting mechanism and controlling the dosage, recording and displaying the dosage data by the supplemental device on its display is disclosed. The method allows due to changing of the optical signal transmitting direction by the optical system also simultaneously monitoring the dosage window of the medicament delivery device. This method increases a safety and minimizes the dosage setting errors.

In general, systems and methods for aggregating and analyzing drug administration data are provided.

An autoinjector drug delivery device configured with a stall and endpoint detection algorithm is described that allows for variations in the fill of the drug, barrel, plunger, and other components. The stall or end point detection causes the autoinjector to stop an extrusion process.

Methods, systems, and devices are disclosed for administering a medicament to a patient. In one aspect, a system includes an injection pen device in wireless communication with a mobile communication device. The injection pen device includes a housing including a chamber to encase a cartridge containing medicine, a dose setting and dispensing mechanism to set the mechanism to dispense a particular dose of the medicine from the loaded cartridge, a sensor unit to detect a dispensed dose based on positions and/or movements of the dose setting and dispensing mechanism, and an electronics unit in communication with the sensor unit to process the detected dispensed dose and time data associated with a dispensing event and to wirelessly transmit the dose data to a user's device. The mobile communication device provides a software application to provide the user with health information using the processed dose data.