An assembly for a drug delivery device and an associated drug delivery device are provided. The device has a drug delivery device housing and a medicament contained in the drug delivery device housing. A clutch is established between the dose knob and the dial link to prevent inadvertent proximal axial movement of the lead screw away from the cartridge piston, which can lead to dosing inaccuracies.

The present disclosure is generally directed to a drug delivery device for selecting and dispensing a number of user variable doses of a medicament and to a non-numerical display for such a device. The display comprises a housing with at least one window, a dosing element movable relative to the housing during dose setting and/or dose dispensing, and a movable indicator element visible through the at least one window The indicator element is coupled to the dosing element and/or to the housing such that it moves not proportional to the dosing element.

A drive mechanism for a medication delivery device containing a resilient member and having a rotation member configured to be rotated in a first direction during setting of a dose of a medication and to be rotated in a second direction during delivery of the dose, where the rotation member is coupled to a drive member that is coupled to a piston rod such that on dose delivery the piston rod is displaced in a distal direction to dispense a medicament and where the resilient member prevents movement of the drive member and the piston rod during dose setting.

The present disclosure is generally directed to a resettable drug delivery device for selecting and dispensing a number of user variable doses of a medicament. The drug delivery device comprises a housing, a cartridge holder releasably attached to the distal end of the housing, a piston rod engaging a housing insert and a drive member, a dose setting member guided within the housing to allow rotation of the dose setting member during dose setting and dose dispensing, a clutch for rotationally coupling the drive member and the dose setting member, and a locking element which is rotationally constrained to the housing and is axially movable relative to the housing between a proximal dose setting position and a distal resetting position.

A method of administering subcutaneous treatment to a patient is provided. The method includes delivering, by a needle-free injection device, a first volume of a treatment at a first location on a surface of a body of the patient; detecting a movement of the needle-free injection device relative to the first location; determining, from the movement of the needle-free injection device relative to the first location, a second location of the needle-free injection device relative to the first location; determining a second volume of the treatment to deliver at the surface of the body of the patient at the second location; and delivering, by the needle-free injection device, the second volume of the treatment at the second location on the surface of the body of the patient.

A dispense mechanism for a drug delivery device for the delivery of a primary medicament in a primary cartridge and a secondary medicament in a secondary cartridge includes a primary drive member and a secondary drive member serve for driving a primary and a secondary lead screw. The primary drive member and the secondary drive member are configured to rotate during dose dispense. A coupling member serves for rotationally coupling the primary drive member to the secondary drive member and moves from a first position in which the primary drive member is rotationally decoupled from the secondary drive member into a second position in which the primary drive member is rotationally coupled to the secondary drive member during dose dispense. Rotation of the primary drive member moves the coupling member from the first position into the second position.

A dose setting mechanism for a medicament delivery device, which dose setting mechanism comprises, a tubular member (10) having a longitudinal track (18) of a predetermined length; a dose drum (40), coaxial with the tubular member (10), and being axially and rotationally movable relative to the tubular member (10); a stop member (90), axially movable but rotationally locked relative to the tubular member (10), and further being in an axially slaved connection with the dose drum (40); wherein the stop member (90) comprises a track follower (98) in engagement with the longitudinal track (18), such that rotational movement of the dose drum (40) relative to the tubular member (10) may cause a maximum axial displacement of the dose drum (40) and the stop member(90), relative to the tubular member (10), corresponding to said predetermined length.

An assembly for a drug delivery device and an associated drug delivery device are provided. The device has a drug delivery device housing and a medicament contained in the drug delivery device housing. A clutch is established between the dose knob and the dial link to prevent inadvertent proximal axial movement of the lead screw away from the cartridge piston, which can lead to dosing inaccuracies.

An administration instrument includes an injection button which can be pressed at an angle that is not parallel to a needle with respect to a direction in which the needle is inserted into skin. As a result, it is possible to prevent a force of pressing the injection button from being transmitted in the direction in which the needle is inserted into the skin deeper than initial insertion of the needle, thereby achieving an administration under a stable state.

A medicament delivery device is presented having a housing, a medicament container holder, arranged movable in relation to the housing and capable of accommodating a medicament container. An activator is arranged in the housing and capable of, upon activation, acting on a medicament container for expelling a dose of medicament, where the activator has a plunger rod, a manually operable dose setting nut rotatably connected to the housing and arranged with first threads. Second threads are arranged on the medicament container holder being arranged to cooperate with said dose setting nut, wherein operation of the dose setting nut will cause the medicament container holder with the medicament container to move towards the plunger rod for setting a dose of medicament to be delivered.