A drive mechanism suitable for use in drug delivery devices is disclosed. The drive mechanism may be used with injector-type drug delivery devices, such as those permitting a user to set the delivery dose. The drive mechanism may include a housing, a dose dial sleeve, and a drive sleeve. A clutch is configured to permit rotation of the drive sleeve and the dose dial sleeve with respect to the housing when the dose dial sleeve and drive sleeve are coupled through the clutch. Conversely, when the dose dial sleeve and drive sleeve are in a de-coupled state, rotation of the dose dial sleeve with respect to the housing is permitted and rotation of the drive sleeve with respect to the housing is prevented. In the de-coupled state, axial movement of the drive sleeve transfers force in a longitudinal direction for actuation of a drug delivery device.

Syringes are described herein. A syringe includes a syringe body, a first plunger, a biasing member, and a retention member. The syringe body defines a syringe cavity and a syringe port, wherein the syringe port is in fluid communication with the syringe cavity. The first plunger comprises a first plunger shaft extending from the first plunger, the first plunger disposed within the syringe cavity and defining a first chamber in the syringe cavity, wherein the first chamber is in fluid communication with the syringe port. The biasing member is coupled to the first plunger shaft, wherein the biasing member urges the first plunger to advance toward the syringe port. The retention mechanism prevents the biasing member from advancing the first plunger in an engaged position and permits the biasing member to advance the first plunger in a released position.

The invention relates to an apparatus (2, 3), comprising a mating unit (20-1, 20-2) for releasably attaching the apparatus (2) to a medical device (1) or for releasably receiving at least a part of the medical device (1). The apparatus (2, 3) further comprises one or more optical sensors (25, 26) and/or one or more acoustical sensors (27) for determining information related to a condition and/or use of the medical device (1). The invention further relates to a system comprising such an apparatus (2, 3) and such a medical device (1), to a method (500, 600, 700) and a computer program (61) for determining information related to a condition and/or use of such a medical device (1), and to a computer-readable medium (60) storing such a computer program (61).

The present invention relates to a dose control system adapted for an injectable drug delivery device, the drug delivery device comprising a substantially elongate drug delivery body, at least one injectable drug held by the body, the body having a distal and proximal extremity, wherein the dose control system comprises three-dimensional magnetic field producing means for producing a magnetic field along three axes (x,y,z); magnetic field detection means configured to detect changes in at least the magnetic field produced by the three-dimensional magnetic field producing means; displacement detection means configured to measure a relative displacement or relative movement of the drug delivery device, and an integrated control unit, wherein the integrated control unit is connected to the magnetic field detection means, and to the displacement detection means, for processing information received from both the magnetic field detection means and the displacement detection means; wherein the three-dimensional magnetic field producing means is configured to effect a rotating coaxial displacement around, and along, a longitudinal axis of the drug delivery system; the magnetic field detection means are located along said longitudinal axis; and the three-dimensional magnetic field producing means is located at, or near, a proximal extremity of the body of the drug delivery device.

A drug delivery device comprising a system for measuring a set dose or a delivered dose comprising at least one magnetic sensor and a magnetic field source characterizes in that the device comprises an element carrying the magnetic field source (9) configured so that during delivering a dose the element moves axially with respect to an element carrying the at least one magnetic sensor (10) measuring a magnetic field, wherein the system for measuring a set dose or a delivered dose comprises a device (13) configured to determine a set dose or a delivered dose based on the magnetic field measurements.

A dose control device adapted to be removably mounted onto an exterior peripheral surface of an injectable drug delivery device, the drug delivery device including a substantially elongate drug delivery body, at least one injectable drug held by the body, the body having a distal and proximal extremity. The dose control device includes a first component configured to fit and substantially encase at least a portion of an exterior peripheral surface of the drug delivery device, and located at a proximal extremity of the drug delivery device; a second component configured to fit and substantially encase a corresponding remaining unencased portion of the exterior peripheral surface of the drug delivery device, and also located at a proximal extremity of the drug delivery device. The first component and the second component removably engage with each other to form a unit having a longitudinal bore that extends along a longitudinal axis of the drug delivery device, and in which bore the drug delivery device is encased between the first component and the second component.

A method of assembling a drug delivery device, comprising the steps of: inserting a piston rod in a nut portion of a cartridge assembly and rotating the piston rod until the piston rod distal end engages the cartridge piston, mounting a drive member on the piston rod in a rota-tional position being closest to a pre-determined rotational position, and rotating the drive member to the pre-determined rotational position.

A tubular rotator for a medicament delivery device is presented having a tubular body extending along a longitudinal axis and having a proximal end and a distal end. Mechanical members are arranged on the outer and inner surface of the tubular body and are configured to co-operate with corresponding mechanical members arranged on other parts of the medicament delivery device. A tubular resilient structure is integrally or fixedly arranged to the proximal end of the body that has a proximal contact surface configured to abut against a distal end surface of a medicament container arranged in the medicament delivery device.

A data collection apparatus comprises a camera configured to obtain first and second recordings of at least a portion of a medicament delivery device, said portion including a first component and a second component, the first component being configured to move relative to the second component as medicament is expelled from the medicament delivery device. The data collection apparatus also comprises a processing arrangement configured to determine, from said first and second recordings, positions in the first and second recordings of the first component relative to the second component, and determine an amount of medicament that has been expelled by the medicament delivery device by comparing the position, in the first recording, of the first component relative to the second component with a position, in the second recording, of the first component relative to the second component.

An injection device including: a body including a syringe locator for receiving a syringe; and a firing mechanism including a rear cap, a plunger configured to be axially displaced in a forward direction relative to the rear cap and a driver system for driving the plunger forwards upon activation of the injection device, the firing mechanism configured to be directly or indirectly connected to the body such that an axial spacing of the rear cap and a barrel of the syringe is fixed during operation of the injection device, wherein, the firing mechanism and/or the body include first and second connection features allowing adjustment of a relative axial position of the firing mechanism and the syringe locator during assembly of the injection device.