US 12,186,537 B2
Cartridge assembly and method for assembling the same
Steven Wimpenny, Warwick (GB); David Aubrey Plumptre, Warwick (GB); Robert Frederick Veasey, Warwick (GB); Ian McFaul, Warwick (GB); Hugh Smith, Warwick (GB); and Paul Griffin, Warwick (GB)
Assigned to Sanofi, Paris (FR)
Appl. No. 17/258,699
Filed by Sanofi, Paris (FR)
PCT Filed Jul. 15, 2019, PCT No. PCT/EP2019/068970
§ 371(c)(1), (2) Date Jan. 7, 2021,
PCT Pub. No. WO2020/016161, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 18305976 (EP), filed on Jul. 18, 2018.
Prior Publication US 2021/0283333 A1, Sep. 16, 2021
Int. Cl. A61M 5/24 (2006.01)
CPC A61M 5/24 (2013.01) [A61M 2005/2403 (2013.01); A61M 2005/244 (2013.01); A61M 2207/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cartridge assembly for a drug delivery device, comprising:
a cartridge containing a drug, the cartridge comprising a dispensing end;
a cartridge holder, the cartridge holder defining an interior cartridge holding section; where the cartridge is arranged within the interior cartridge holding section; and
a fixing member,
wherein the fixing member comprises a fixing surface, which is arranged to abut a cartridge surface of the cartridge, wherein the cartridge surface is a proximal surface which faces away from the dispensing end of the cartridge, and wherein the cartridge surface is arranged between the dispensing end of the cartridge and an end opposite of the dispensing end, and
wherein the fixing member comprises a securing surface which is arranged to abut a holder surface of the cartridge holder to prevent removal of the cartridge from the cartridge holder such that the cartridge is permanently secured in the cartridge holder,
wherein the holder surface is a distal surface of the cartridge holder
wherein the fixing member has a plurality of circumferentially disposed securing features, wherein each securing feature of the plurality of circumferentially disposed securing features comprises one section of the securing surface of the fixing member, wherein the circumferentially disposed securing features extend axially and radially away from a main body of the fixing member.