Medication delivery devices are provided having a sensor in the form of a switch having a conductive pad and a cantilevered arm that is moveable toward and away from the conductive pad. Contact between the cantilevered arm and the conductive pad changes the state of the switch, while lack of contact between the cantilevered arm and the conductive pad changes the state of the switch. The switch may be used to sense dosage of medication delivered during dose delivery. The switch may interact with a rotating component having a plurality of teeth that slide against the cantilevered arm during dose delivery.

An injection device comprises a housing with a receptacle for a product, a dosing mechanism for setting a product dosage to be administered and for displaying the product dosage that has been set, and a dispensing mechanism for dispensing the product. The dosing mechanism comprises a dosing sleeve which is rotatable relative to the housing in a first direction for setting a product dosage and which is rotatable relative to the housing in a second, opposite direction for correcting or dispensing a product dosage. The dispensing mechanism comprises a piston rod, at least one sleeve, and a clutch. The device further comprises a first detector for detecting movement of the clutch relative to the dosing sleeve and/or the housing and/or the at least one sleeve and a data processing unit connected to the first detector for reading, storing, processing, transmitting, and/or displaying signals received from the first detector.

An assembly for a drug delivery device is provided, the assembly comprising a feedback feature. The feedback feature is configured to indicate an end of the dispense operation to a user by giving an audible and/or tactile feedback.

A drug delivery system is provided that has an adjustable dose mechanism allowing setting and locking the dose then administration of the set dose. A method for administering a medicament using the drug delivery system is also provided.

A method of providing and/or injecting octreotide acetate to a subject in need thereof includes storing the octreotide acetate in a cartridge of a multi-use multi-dose injector provided with a variable dose setter and actuator. The injector includes a needle configured for subcutaneous administration of the octreotide acetate, the octreotide acetate having a concentration of 2,500 μg/mL. The method further includes providing, on the injector, a plurality of indicia only at prescribed doses of 50 μg, 100 μg, 150 μg and 200 μg settable via the dose setter without indicia between said prescribed doses; and permitting setting of a dose of the octreotide acetate by rotation of the variable dose setter, wherein the injector is configured to provide at least one audible feedback during the rotation.

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 present disclosure refers to an injection device comprising a housing, a cartridge holder having a first attachment member, a threaded sleeve insert axially and rotationally constrained to the housing, the threaded sleeve insert having a second attachment member for releasable attachment with the first attachment member, and a metering mechanism. The metering mechanism comprises an actuating element, a piston rod, a piston rod sleeve in which the piston rod can be non-rotatably connected in the piston rod sleeve, and a coupling element coupling the actuating element and the piston rod sleeve. The piston rod can be non-rotatably connected to the piston rod sleeve by a coupling sleeve. The cartridge holder is attached to the threaded sleeve insert by axially moving cartridge holder with respect to the threaded sleeve insert and the housing to engage the coupling sleeve with the piston rod sleeve.

A medication delivery device having a lock element. The device is connectable to an electrical plug of a conduit. The device includes an external housing with an opening that ports to a plug receiving hollow within an interior volume. An electrical circuit connected to at least one of a rechargeable battery and a memory controller includes a connection element within the plug receiving hollow. The lock element travels within the plug receiving hollow when a dose delivery assembly of the device operates for forcing medication from the device. The lock element is sized and positioned to have its travel halted by abutment with the plug, when the plug is within the plug receiving hollow and electrically interfacing with the connection element, to thereby halt the dose delivery assembly from further operating for forcing medication from the device.

A dosage measurement system is adapted to receive a motion from a dosage injection mechanism disposed within a drug injection pen. The dosage measurement system includes a substrate, a sensing capacitor disposed on the substrate, and a lifting tab. The sensing capacitor includes a dielectric layer disposed between a base plate and an adjustable plate. The lifting tab is attached to the adjustable plate and positioned to engage an undulation pattern disposed on a component attached to the dosage injection mechanism. The lifting tab is adapted to physically change a separation distance between the adjustable plate and the base plate in a reciprocal manner in response to the motion of the dosage injection mechanism and engagement with the undulation pattern. A capacitance of the sensing capacitor changes in response to the engagement of the lifting tab with the undulation pattern and the motion of the dosage injection mechanism.

A method and system for detecting rotational movements due to dosage changing activity in a pen-type injector having a body and a dosage adjustment mechanism. The method includes measuring, using a sensor, rotation about one or more axes of the injector to provide rotational data, identifying in the rotational data, one or more features and/or patterns corresponding to a change in the angular velocity of the sensor due to mechanical coupling between the body and the dosage adjustment mechanism, and detecting the rotational movements based on the identifying.