US 11,298,464 B2Granted

Assembly for a drug delivery device and drug delivery device

AssigneeSanofi-Aventis Deutschland GmbH

InventorsPhilippe Nzike, Steffen Raab, Uwe Dasbach, Uwe Boeser, Ulrich Bruggemann

Life of this patent

Estimating the term…

Loading patent…

Abstract

An assembly for a drug delivery device includes a housing, a rotation member, a drive member and at least one correction member. In a delivery mode, the drive member and the rotation member are coupled such that the drive member follows rotational movement of the rotation member in a first rotational direction. In a correction mode, the rotation member and the drive member are decoupled such that the rotation member is rotatable in the first rotational direction with respect to the drive member. For switching from the delivery mode into the correction mode, the correction member is moveable with respect to the housing, wherein the assembly is configured such that movement of the correction member with respect to the housing is converted into a relative movement between the drive member and the rotation member for decoupling the drive member and the rotation member.

Claims22

Dependent claims

An assembly for a drug delivery device, the assembly comprising:

a housing;
a rotation member rotatable with respect to the housing, the rotation member having first teeth;
and
a drive member rotatable with respect to the housing, the drive member having second teeth;
wherein the first teeth and the second teeth are configured to couple the drive member and the rotation member,
wherein in a dose setting mode, the rotation member is configured to be rotated to set a dose of a drug,
wherein in a dose correction mode different from the dose setting mode, the first teeth and the second teeth uncouple the rotation member and the drive member such that the rotation member rotates in a first rotational direction independently from the drive member to correct the set dose of the drug, and
wherein in a dose delivery mode different from the dose correction mode and dose setting mode, the first teeth and the second teeth rotationally couple the rotation member and the drive member such that a rotational movement of the rotation member in the first rotational direction causes a rotational movement of the drive member in the first rotational direction to deliver the corrected dose of the drug.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/958,268Filed 20 Apr 2018 · continuation
Priority: EP 091749623 Nov 2009
Published: US 2018/0236175 A123 Aug 2018
Granted: 12 Apr 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61M 5/31535
Dosing mechanisms, i.e. setting a dose: means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing,…
A61M 5/24
Syringes: ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/31555
Mechanically operated dose setting member: by purely axial movement of dose setting member, e.g. during setting or filling of a syringe
A61M 5/31556
Mechanically operated dose setting member: accuracy improving means

Family

PCT/EP2010/066552Parent of this continuation · filed 1 Nov 2010
Application13/711,917Parent of this continuation · filed 12 Dec 2012
Application15/370,916Parent of this continuation · filed 6 Dec 2016
US 9,737,666 B2Parent of this continuation · filed 22 Aug 2017
US 2018/0236175 A1Pre-grant publication · published 23 Aug 2018
US 9,974,906 B2Parent of this continuation
Application13/504,296Parent of this continuation
US 2013/0046247 A1Published application
US 2013/0178802 A1Published application
US 2017/0080160 A1Published application
US 11,298,464 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key