An assembly for a drug delivery device comprises a housing, a dose member which is displaceable in a proximal direction with respect to the housing for setting of a dose of a drug, a clutch member which is displaced in the proximal direction with respect to the housing when setting the dose, and a stop member configured to define a clutch stop position. The clutch member and the dose member are configured to mechanically cooperate with one another when the clutch member is in the clutch stop position, thereby preventing further displacement of the dose member in the proximal direction with respect to the housing during setting of the dose.

The invention provides methods and apparatus for injecting a medicine, especially a highly viscous medicine. Conventional methods and apparatus for injecting viscous medicines suffers from a variety of problems such as excessive force during the initial needle insertion and initial injection. In an inventive method, during the initial phase of the injection, energy is stored in a torsion spring that is subsequently released during a later stage of the injection. The present invention also provides for an improved autoinjector; especially via the use of a combination compression and torsion spring that powers the injection through controlling force applied to plunger via a screw flange or nut having pins that ride in a prescribed path down the length of the autoinjector.

The present invention provides a drug injection device (100) comprising a first element (140) and a second element (103) configured to undergo unidirectional movement relative to each other corresponding to an action performed on or by the drug injection device (100), wherein the first element (140) comprises a plurality of serially disposed protrusions (143), wherein the second element (103) comprises first and second deflectable transducers (103a/153a, 103b/153b) configured for sequentially cooperating with the plurality of protrusions (143), and wherein a processor (151) is electrically connected with the first and second deflectable transducers (103a/153a, 103b/153b) to register activation signals, wherein the protrusion configuration is so disposed on the first element (140) and the first and second deflectable transducers (103a/153a, 103b/153b) are so disposed on the second element (103) that a second activation signal generated by the second deflectable transducer (103b/153b) is delayed relative to a first activation signal generated by the first deflectable transducer (103a/153a) as the first element (140) and the second element (103) move relative to each other, and wherein the processor (151) is configured to provide a) a first control action if a time delay between the first and second activation signals is above or equal to a pre-defined value, and b) a second control action if said time delay is below said pre-defined value.

Systems, devices, and techniques are disclosed for administering and tracking medicine to patients and providing health management capabilities for patients and caregivers. In some aspects, an intelligent medicine administering system includes a medicine injection device having a multi-channel encoder that detects fault conditions (e.g., such as open or short circuits) and a patient user's companion device including a software application operable to implement algorithms for detecting faults and communication loss and alerting the patient user for safety and fail-safes of the medicine injection device.

An optical decoding system including an optical sensor integral with or attachable to a housing of a drug delivery device and configured to be directed at first and second rotatable components of a dose setting and dispensing mechanism of the drug delivery device and a processor configured to: (i) cause the optical sensor to capture images of the first and second rotatable components at least at the beginning and end of a medicament dose dispensing process; (ii) determine a rotational position of both the first and second rotatable components in each of the captured images; and (iii) determine from the rotational positions of the first and second rotatable components an amount of medicament delivered by the dose setting and dispensing mechanism of the drug delivery device.

The disclosure relates to an injection device for setting and injecting pre-set or user-selectable doses of a medicament, the injection device comprising an elongated housing defining a longitudinal direction and configured to accommodate a cartridge containing the medicament, and a detector arrangement operable to detect a relative movement between a first element and a second element. The first element is subject to a first movement relative to the second element along a first longitudinal direction for setting of a dose, the first element is subject to a second movement relative to the second element along a second longitudinal direction for dispensing of the dose, one of the first movement and the second movement is a helical movement, and the other one of the first movement and the second movement is a sliding movement in the longitudinal direction. The second element comprises at least one reference element fixed to the second element.

A drug delivery device comprises a dose setting and driving assembly for dialing and dispensing a dose of a medicament from a cartridge of the drug delivery device. The dose setting and driving assembly includes an outer housing, a number sleeve and a dose dial grip. The number sleeve and the dose dial grip are rotatable relative to the outer housing during dose dialing. The number sleeve is rotatable relative to the outer housing during dose dispensing. The dose dial grip is axially displaceable and rotationally constrained to the outer housing during dose dispensing. The dose dial grip comprises an outer skirt partially protruding out of the outer housing and comprising a profiled gripping surface at the proximal end of the dose dial grip.

An actuation mechanism is presented for a medicament delivery device having a plunger rod arranged to act on a stopper of a medicament container, an actuator arranged slidable and connected to the plunger rod for acting on the stopper when said actuator is operated by displacing it in a longitudinal direction of the actuation mechanism, and an activator for activating the actuation mechanism and for setting a dose. The activator having a generally tubular activator sleeve provided with a spirally extending groove on an outer surface, the groove arranged with a length corresponding to the total amount of medicament to be delivered in a number of doses contained in said medicament container, where the groove is provided with an end wall, a stop ring arranged coaxial with said activator sleeve. The activator sleeve arranged with a follower positioned in the groove and the follower arranged to abut the end wall when the total amount has been delivered.

A data collection device for attachment to an injection device and for collecting medicament dosage information therefrom.

A data collection device for attachment to an injection device, such as an injector pen, includes a sensor arrangement to detect movement of a movable component of the injection device relative to the data collection device during delivery of a medicament by the injection device, and a processor arrangement configured to, based on said detected movement, determine a medicament dosage administered by the injection device. The processor arrangement may monitor the time that has elapsed since the medicament dosage was administered, and control a display to show the mediacament dosage and elapsed time to provide a memory aid to the user. In an example embodiment, the sensor arrangement includes an optical encoder and the movable component includes a plurality of light barrier formations. The movable component may be a number sleeve that provides a visual indication of a dose programmed into the injection device.