Dose setting mechanism and medicament delivery device comprising the dose setting mechanism
AssigneeShl Medical AG
InventorsThomas Bergens, Anders Wieselblad
Life of this patent
Estimating the term…
Abstract
A dose setting mechanism for a medicament delivery device is presented having a tubular member, a dose drum, coaxial with the tubular member, and being axially and rotationally movable relative to the tubular member, a stop member, coaxial with the tubular member, and axially movable but rotationally locked relative to the tubular member, and further being axially jointly movable with the dose drum, wherein the stop member has a first stop element and in that the dose drum has a second stop element, and wherein the first stop element and the second stop element are configured to interact with each other to limit rotation of the dose drum to a predetermined angular interval.
Claims19
A dose setting mechanism for a medicament delivery device, which dose setting mechanism comprises:
- a tubular member;
- a dose drum comprising a proximal end face and an outer surface threadedly engaged with an inside surface of the tubular member, and being axially and rotationally movable relative to the tubular member, where the dose drum comprises indicia indicative of a dose of medicament set by a user;
- a stop member having a distal end face, coaxial with the tubular member, and axially movable but rotationally locked relative to the tubular member, and further being axially jointly movable with the dose drum;
- a dose drum follower connected to the dose drum;
- and
- a dose blocker that is axially movable and rotationally locked to the dose drum follower,
- wherein the stop member comprises a first stop element projecting distally and in that the dose drum comprises a second stop element projecting proximally,
- wherein the distal end face and the proximal end face axially abut each other such that the first stop element and the second stop element interact with each other when the dose drum is rotated relative to the stop member through a predetermined angular interval.
A medicament delivery device comprising:
- a dose setting mechanism comprising,
- a tubular member;
- a dose drum, coaxial with the tubular member, and being axially and rotationally movable relative to the tubular member;
- a stop member, coaxial with the tubular member, and axially movable but rotationally locked relative to the tubular member, and further being axially jointly movable with the dose drum;
- wherein the stop member comprises a first stop element projecting distally and in that the dose drum comprises a second stop element projecting proximally, and wherein the first stop element and the second stop element are configured to interact with each other when the dose drum is in an initial position corresponding to a zero dose setting and in a maximum set dose position.
A dose setting mechanism for a medicament delivery device, the dose setting mechanism comprises:
- a tubular member;
- a dose drum rotationally positioned within the tubular member, where the dose drum moves axially and rotationally to the tubular member;
- a stop member axially slidable and rotationally fixed to the tubular member through a splined connection;
- a drum follower operatively connected to the stop member such that the stop member moves axially with the dose drum;
- wherein the stop member comprises a first stop element projecting distally and where the dose drum comprises a second stop element projecting proximally such that the first stop element and the second stop element abut each other when the dose drum is in an initial position corresponding to a zero dose setting and in a maximum set dose position.
Dependencies are inferred from the claim text.