Device for administering a dose of a fluid product
AssigneeTecPharma Licensing AG
InventorsSeline Staub, Jürg Hirschel
Life of this patent
Estimating the term…
Abstract
A device for administering a dose of a fluid product, where, in a starting state of the device, a holding element of the device is spaced apart in the proximal direction from a proximal end or portion of the housing and, moreover, a discharge stop of a drive member of the device is provided, where the discharge stop of the drive member can come into abutting contact with a discharge stop of the housing, and the discharge stop of the drive member is arranged on the drive member in a position axially offset in the proximal direction with respect to an engagement element of the drive member.
Claims15
A device for administering a dose of a fluid product, comprising:
- a housing with a distal end and a proximal end or section, wherein a discharge stop of a dose to be administered is provided on the housing;
- a pretensioned spring that is held at least partially by a drive element, wherein the drive element is supported axially in a distal direction such that the drive element can move in the housing to displace a plug held in a multi-chamber cartridge in the distal direction for administering the dose of the fluid product;
- a retaining element for retaining the drive element loaded with a force of the spring, wherein, in a starting state of the device, the drive element can be held in a proximal position by an engagement between an engagement element provided on the retaining element and an engagement element provided on the drive element, wherein in a released state of the device, the engagement element of the retaining element is out of the engagement with the engagement element of the drive element;
- and
- a discharge stop that is provided on the drive element, wherein the discharge stop of the drive element can be brought into a stop contact with the discharge stop of the housing for administering the dose of the fluid product, and the discharge stop of the drive element is arranged on the drive element offset axially in a proximal direction relative to the engagement element of the drive element,
- wherein, in the starting state of the device, the retaining element is set apart in the proximal direction from the proximal end or section of the housing.
Dependencies are inferred from the claim text.