|Title:||Administering apparatus with functional drive element|
|Abstract:|| An apparatus for administering a fluid product, including a housing, a product member for accommodating the fluid product and/or a reservoir for the fluid product, which product member can be moved relative to the housing from a start position to an inserted position along a longitudinal axis of the housing, a drive member in the housing and movable relative to the product member for emptying the fluid product from the product member and/or the reservoir, wherein the drive member has at least one holding element which holds the drive member in the start position of the product member and wherein, by the movement of the product member, the holding element is moved from the holding position to a released position in which the drive member is movable relative to the housing.|
|Inventor(s):|| Tschirren; Markus (Kirchberg, CH), Moser; Ulrich (Heimiswil, CH), Hirschel; Juerg (Aarau, CH), Baumert; Jan (Bern, CH), Hattler; Eric (Solothurn, CH) |
|Assignee:|| TecPharma Licensing AG (Burgdorf, CH) |
1. A device for administering a fluid product, comprising: a) a housing; b) an accommodating member for the fluid product and/or for a reservoir for the fluid
product, which can be inserted relative to the housing along a longitudinal axis of the housing from an initial position to an inserted position; c) a drive member which is mounted in the housing and can be moved relative to the accommodating member to
deliver the fluid product from the accommodating member and/or reservoir, wherein d) the drive member comprises at least one holding element which holds the drive member relative to the housing in the initial position of the accommodating member and is
moveable from the holding position to a released position in which the drive member can be moved relative to the housing by inserting the accommodating member, the drive member further comprising an activating element with which the accommodating member
engages during the insertion movement and which moves the drive member relative to the housing to an activated position in which drive member protrudes proximally out of the housing, wherein the activating element abuts an axial abutment on the
accommodating member during the insertion movement, lies within the accommodating member in an end position after the fluid product has been administered, and wherein in the end position the holding element abuts the abutment, which is fixed with respect
to the housing, and lies substantially within the accommodating member.
2. The administering device according to claim 1, wherein the holding element comprises a heel which limits a movement of the drive member in the proximal direction relative to the housing by abutting an edge which is fixed with respect to the
3. The administering device according to claim 2, wherein the accommodating member is formed in the shape of a sleeve and comprises a cavity with which the heel of the holding element engages in the end position.