A smart tourniquet for self-administering a medication is provided. When a patient needs to inject themselves with a medication, intravenously, called an “infusion,” the patient wears the smart tourniquet around their arm and tightens the device. While the patient is using the smart tourniquet, the device automatically records the date and time of the infusion, called a “timestamp”. The patient can also use the device to record the dosage or “number of units” taken at the time of the infusion. The smart tourniquet can store the timestamp as well as other related information as a record. At a later time, the patient can recall prior records on the smart tourniquet itself. The smart tourniquet can also be synchronized with an application and the records can be downloaded for review by the patient, nurse or doctor to render accurate and timely care.

A medical injection system is provided. The medical injection system comprises an injection module and the cartridge module coupled to the injection module. The injection module comprises a lead screw movable along an axial line into the cartridge module; a driver sleeve configured to partially accommodate the lead screw and to have a first sleeve end facing a distal end and having sleeve teeth, a dose plate including a first plate end facing the distal end, a second plate end facing a proximal end and having plate teeth corresponding to sleeve teeth, and a side surface located between the first plate end and the second plate end and having a surface tooth; and an indicia tube configured to accommodate the driver sleeve and the dose plate and to have tube concaves near a first tube end facing the distal end. The surface tooth corresponds to one of the tube concaves.

An arrangement for a drug delivery device is provided, the arrangement comprising: a housing having a proximal end and a distal end, a dose setting member which is rotatable relative to the housing for a dose setting operation in order to set a dose of drug to be delivered, a tracking member, and a guide track. Wherein the tracking member is operatively coupled or coupleable to the dose setting member, or wherein b) the dose setting member is a tracking member. The guide track is configured to form a guiding interface to guide and/or drive movement of the tracking member. The tracking member can be displaced towards an axial tracking member end position during the dose setting operation, wherein the distance by which the tracking member is displaced towards the axial tracking member end position depends on the size of the set dose.

An autoinjector includes a housing, a product container, a torsion spring, a drive element, and a propulsion element. In order to discharge liquid out of the product container, the torsion spring rotates the drive element, and the rotating drive element produces a propulsive movement of the propulsion element and of a piston in the product container. A rotation sensor is configured for an alternating continuous detection of at least two rotational positions per revolution of the drive element during the discharge process, and a processor unit is configured for determining the axial position of the piston in the product container from the detected rotational positions.

A system includes a drug delivery device, a user device including a camera, and a case for the user device. The case includes a slot adapted to receive the drug delivery device, as well as a first wall, a second wall, and two side walls defining a space therebetween that is configured to receive the user device. When the user device and the drug delivery device are inserted into the case, the case is configured to align the drug delivery device and the camera of the user device such that the camera can capture images of at least one feature of the drug delivery device from one or both of a predefined distance and a predefined orientation.

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.

A medicine injection pen includes a rotatable drive member and a rotary encoder associated with the drive member. The rotary encoder is configured to determine an amount of liquid medicine dispensed based on a rotational orientation of the drive member.

An electronic system for a drug delivery device is provided. The system includes an electronic control unit configured to control an operation of the system, and an electrical motion sensing unit that is configured to generate one or more data signals. The data signals are suitable to quantify relative rotational movement between a first member and a second member during a dose setting operation for setting a dose to be delivered by the drug delivery device and/or a dose delivery operation for delivering the set dose. The system is configured to perform a comparison operation to compare first data to second data. The first data indicating a first relative angular position of the first member and the second member, and being derivable from one or more data signals. The second data indicating a second relative angular position of the first member and the second member.

Embodiments described herein generally relate to devices, systems and methods for measuring a volume or number of doses remaining in a drug delivery device that is used for delivering a dose to a patient. In some embodiments, a dose measurement system for measuring the liquid volume in a container includes a light guide disposed and configured to reflect electromagnetic radiation toward the container. The dose measurement system also includes a light guide disposed and configured to emit electromagnetic radiation into the light guide. A plurality of sensors are located in the apparatus that are optically coupleable to the light guide and are disposed and configured to detect the electromagnetic radiation emitted by at least a portion of the light guide. The apparatus also includes a processing unit configured to receive data representing the portion of the detected electromagnetic radiation from each of the plurality of sensors. The processing unit is further operable to convert the received data into a signature representative of the electromagnetic radiation detected by the plurality of sensors.

An injection-device and an injection-measuring method are described. The injection-device includes a pen-type sleeve for accommodating a cartridge holder, a mechanical injection system provided in the pen-type sleeve, which has a dosing sleeve by which a dosage quantity to be injected is predefinable and which is configured to execute a rotatory motion during the injection process; a selector device, connected to the dosing sleeve, for adjusting the dosage quantity to be injected; an injection button, connected to the selector device, for applying an injection force; and an optical sensor device for detecting the rotatory motion of the dosage sleeve during injection of the dosage quantity, which has a signal-processing device for ascertaining and storing the injected dosage quantity based on the detected rotatory motion of the dosage sleeve. The injection button has a switch device by which the optical sensor device is activatable when applying the injection force.