Patent ID: 7749200
Filing Date: 2010-07-06
Classification: A61M

Abstract:
1. An administering apparatus for administering a fluid product, comprising: a) a casing comprising a reservoir for the product; b) a driven device which acts on the product contained in the reservoir, in order to deliver the product; and c) a drive device which acts on the driven device and performs a delivery stroke in a drive direction from a delivery position up to a delivery stopper, in order to deliver a product dosage to be administered; wherein d) a priming stopper is provided for the drive device and limits a priming stroke of the drive device, which serves to bleed, in the drive direction, wherein the priming stroke is axially shorter than a maximum delivery stroke, and wherein the drive device can be moved in the drive direction from a priming position to the priming stopper, and transversely to the drive direction in the delivery position, and the drive device is moveable from the delivery position to the priming position; e) a dosing member comprising two dosing bodies nested and connected to each other, one of which forms a sleeve-shaped, cylindrical outer dosing body and the other of which forms a sleeve-shaped, cyclindrical inner dosing body, wherein the outer dosing body concentrically surrounds the inner dosing body, between which a circumferential gap remains, into which the casing protrudes, and wherein a guiding curve is formed on a surface of the inner dosing body; and f) an engaging member formed by the drive device, which serves as a priming counter stopper and engages with the guiding curve forming the priming stopper, wherein the guiding curve comprises a first guiding section, a second guiding section parallel to the first guiding section and a connecting section which extends in the circumferential direction to connect a rear end of the first guiding section and a rear end of the second guiding section to each other.