Abstract: A driving and dosing device for an injection device for discharging a liquid product includes a housing, a rotatable dose adjustment member for adjusting a product dose to be discharged, a driven member received in the housing, a driving member rotatable relative to the housing and which, during the discharge of product, is coupled to the driven member such that a rotation of the driving member has the effect that the driven member is moved in the distal direction relative to the housing, a pretensioned driving spring which is switched between the dose adjustment member and the driving member during the adjustment of the product dose, wherein the dose adjustment member, during the adjustment of the product dose, is coupled in a rotationally fixed manner to the driving member, such that a rotation of the driving member relative to the dosing member is prevented.

Abstract: A drive and dosing device is described for an injection device for administering a fluid product, in particular a medication, wherein the drive and dosing device can be adjusted to a product dose to be administered. The drive and dosing device has, among other things, a coupling which, upon activation of an activation element, enables rotation of a rotation element relative to a housing, wherein by disengaging the activation element, the rotation of the rotation element relative to the housing is blocked.

Abstract: The invention relates to a driving device for an injection device for administration of a liquid drug. The driving device has inter alia a rotary member, rotation of which relative to the housing causes a pretensioned spring to move a propulsion member in the dispensing direction, and a coupling which is closed and is opened by pressing of an actuating member, the opened coupling enabling the rotation of the rotary member in a first direction of rotation, and the actuating member being coupled to the rotary member such that pressing of the actuating member causes the rotary member to rotate already when the coupling is still closed.

Abstract: Drive and metering devices for injection devices include a dose display element with a helical dosage scale; an indicating means; a metering member, which can be rotated relative to the indicating means for dose setting; a discharge spring and an advancement member. The dose display element can be screwed relative to the indicating means about a longitudinal axis (L) and a value on the dose scale can be read via the indicating means corresponding to the set dose. The discharge spring causes the advancement member to discharge the product as it moves an overall discharge stroke length (Hg), where the overall discharge stroke length (Hg) comprises a first partial discharge stroke length (H1), during which the dose display element is rotationally secured in relation to the indicating means and where the dose display element can be rotated relative to the indicating means following the first partial discharge stroke length (H1).

Abstract: A driving and dosing device for an injection device includes: a housing, a dosing element gripped by a user, an actuating element actuable by the user to discharge the set dose, a propulsion element for acting on a piston to discharge the set dose, a spring configured to act between the propulsion element and an abutment, which is preloaded so as to discharge a maximum dischargeable product quantity in a plurality of individual discharges, a rotation element configured to rotate relative to the housing and a clutch configured for releasably engaging the rotation element. Releasing the clutch permits the rotation element to rotate relative to the housing when the actuating element is actuated, blocks the rotation of the rotation element relative to the housing when the actuating element is released, and by rotation of the rotation element, the spring is permitted to move the propulsion element in the discharge direction.

Abstract: A driving and dosing device for an injection device for administering a liquid product, in particular a medication, wherein a product dose to be administered can be set by means of the driving and dosing device, comprising: a) a housing, b) a dose indicating element, around the circumference of which a dose scale is arranged, c) a pointing device and a (d) dosing element that can be gripped in particular by the user of the driving and dosing device, wherein the dose indicating element can be rotated, in particular screwed, relative to the pointing device and about an axis of rotation (L) and a value of the dose scale that corresponds to the set dose can be read by means of the pointing device, in order to set the dose to be administered by rotating the dosing element relative to the pointing device, and e); a discharge spring, which stores the energy required for discharging the product, wherein the discharge spring is loaded by means of rotation of the dosing element.

Abstract: A driving and dosing device for an injection device configured for dose setting and dose administration includes: a housing, a dose indicating element including a circumferential dose scale, a pointing device and a dosing element gripped by a user. In order to set the dose to be administered, the dosing element is rotatable such that the dose indicating element is rotatable or screwable about an axis of rotation relative to the pointing device, and a value of the dose scale that corresponds to the set dose is readable by means of the pointing device. A bearing element, with which the dose indicating element is in an engagement, causes the rotational or screwing motion of the dose indicating element relative to the pointing device, characterized in that the bearing element can be moved together with the dose indicating element relative to the housing and along the axis of rotation.