Abstract: A start of medicament delivery notification mechanism is presented where the notification mechanism is positioned within a housing of a medical device and includes a rear cap secured to a distal end of the housing, where the rear cap has a hollow tubular housing extending proximally from a distal end of the rear cap such that the tubular housing is cantilevered within and rotatably fixed relative to the housing and is parallel with a longitudinal axis of the housing. A rotator rotatably is positioned around the tubular housing such that rotator can rotate relative to the tubular housing from a first position to a second position, where the second position coincides with an initiation of a delivery of a dose of medicament. The rotator further has a contact surface that engages with and subsequently disengages from a corresponding contact surface located on the rear cap or on an inside surface of the housing.

Abstract: A drive mechanism for a resettable medicament delivery training device is presented having a plunger rod having a proximal end and a distal end, a container having an inner chamber, an open proximal container end, and an open distal container end leading into the inner chamber, and a resetting structure, wherein in an initial state of the drive mechanism the plunger rod extends through the open distal container end into the inner chamber and is axially fixedly arranged in a first position in the container and biased towards the open proximal container end, and wherein the plunger rod is configured to be released from the first position, causing the plunger rod to move towards the open proximal container end to obtain a second position in the container, wherein the resetting structure is configured to be manually inserted into the container via the open proximal container end when the plunger rod is in the second position, the resetting structure being configured to be moved manually towards the distal open en

Abstract: A dose setting mechanism for a medicament delivery device is presented having a locking assembly that reliably and consistently unlocks a dose injection button and concurrently a lead screw when the dose setting mechanism is transitioned from a non-activated state to an activated state. This locking assembly uses a rotating plate having a locking protrusion that engages a radial projecting tab on a rotationally fixed plunger rod nut. An alignment member is also presented that prevents rotational drift of a dosing member.

Abstract: A dose setting mechanism for a medicament delivery device is presented having a locking assembly that reliably and consistently unlocks a dose injection button and concurrently a lead screw when the dose setting mechanism is transitioned from a non-activated state to an activated state. This locking assembly uses a rotating plate having a locking protrusion that engages a radial projecting tab on a rotationally fixed plunger rod nut. An alignment member is also presented that prevents rotational drift of a dosing member.

Abstract: A dose setting mechanism for a medicament delivery device is presented having a locking assembly that reliably and consistently unlocks a dose injection button and concurrently a lead screw when the dose setting mechanism is transitioned from a non-activated state to an activated state. This locking assembly uses a rotating plate having a locking protrusion that engages a radial projecting tab on a rotationally fixed plunger rod nut. An alignment member is also presented that prevents rotational drift of a dosing member.

Abstract: A dose setting mechanism for a medicament delivery device is presented having a locking assembly that reliably and consistently unlocks a dose injection button and concurrently a lead screw when the dose setting mechanism is transitioned from a non-activated state to an activated state. This locking assembly uses a rotating plate having a locking protrusion that engages a radial projecting tab on a rotationally fixed plunger rod nut. An alignment member is also presented that prevents rotational drift of a dosing member.