Patent ID: 11931558
Assignee: YPSOMED AG
Field: Medical technology (Instruments)
Classification: CPC A  F | IPC A  F

Claim 0:
1. A device for administering a fluid product, comprising:
a) a first casing part comprising a reservoir for the product;
b) a second casing part connected to the first casing part;
c) a piston rod for exerting a delivery movement in an advancing direction from the second casing part;
d) a drive member, operable for moving the piston rod, wherein the drive member is sleeve-shaped, and wherein the second casing part comprises a linear guide for the drive member such that movement of the drive member is linearly guided relative to the second casing part in and counter to the advancing direction;
e) a coupler comprising a coupler input member adapted to couple the drive member to the piston rod in a coupler engagement, wherein the coupler input member transfers a drive force of the drive member onto the piston rod, and wherein the coupler input member is sleeve-shaped; and
f) a dosing member for setting a product dosage deliverable by operating or triggering the drive member, wherein the dosing member is coupled to the drive member such that a dosing movement of the dosing member results in a dosing movement of the drive member, wherein during dose setting the dosing member is rotationally secured to the coupler input member such that the coupler input member rotates with the dosing member, and wherein the dosing member is coupled to a dosage display for displaying a set product dosage such that the dosing movement of the dosing member causes a change in a product dosage displayed.