Abstract: An insertion mechanism for a cannula includes a cannula housing, a displaceable cannula, at least one cannula holder, an insertion spring, a triggering element, and a safety device. The safety device, in a secured state, holds the triggering element in a blocked position against a force of the insertion spring and, in a released state, releases the triggering element such that the triggering element is movable into a release position by the force of said insertion energy store and the at least one cannula holder is able to move relative to the cannula housing, driven by the insertion energy store, so as to trigger or implement an insertion movement or insertion. To reach the released state, the safety mechanism is heatable by a heating element and softened and/or weakened with respect to its mechanical carrying or holding capacity, or severed or at least partially or completely melted.

Abstract: A drug delivery device for conducting a medical therapy includes a housing with an exit port opening, and an exit port assembly, where said exit port assembly includes a rigid exit port sealing holder and a soft exit port sealing, and provides both a fluid-tight closure of the exit port opening and a fluid-tight connection between the housing and the rigid exit port sealing holder.

Abstract: A disposable module that can be coupled to a reusable module in order to form a pump for dispensing a medicament substance to a user in a metered manner in a coupled state, comprising a housing that encases the following components: a reservoir for receiving the substance to be dispensed; and at least one extensible cannula, which is fluidically connected to the reservoir either after being inserted or in a permanent manner. The disposable module may also comprise an electrical energy store, wherein the electrical energy necessary for the reusable module can be obtained both from the disposable module and also from a rechargeable battery in the reusable module, in order to ensure redundancy of the energy necessary for the reusable module.

Abstract: A drive mechanism for an insertion mechanism for an administering device, having a base and a guide track. A slider of the drive mechanism provided on the base in a rotationally fixed manner can be slid along or in the guide track between end positions. A drive wheel is rotatably mounted on the base. A drive track is connected to the slider and has a plurality of drive sections, and an energy source, by means of which the drive wheel can be set into rotation. Upon rotation of the drive wheel, the slider moves along the guide track in the distal direction to a distal end of the guide track and slider is moved along or in the guide track in the proximal direction. The energy source can be coupled to the drive wheel by means of a one-piece or multi-piece transmission element and of an introduction wheel.