Housing for an Injection Device

• Main Authors: Draper, Paul Richard, Blundred, Neal Alexander
• Format: Patent
• Language: English
• Published: 20.06.2019
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The present invention relates in one aspect to a housing for an injection device, comprising: -a body (30) to accommodate a drive mechanism (5) to operably engage with a piston (52) of a cartridge (50) filled with a liquid injectable medicament (53), -a cartridge holder (20) having a cartridge receiving space (25) to accommodate the cartridge (50), -wherein the cartridge holder (20) and the body (30) comprise an elongated shape and extend along an axial longitudinal direction (1, 2), -wherein the cartridge holder (20) has an insert section (21) at a proximal end (23), -wherein the body (30) has a receptacle (31) at a distal end (33) to receive the insert section (21) of the cartridge holder (20), -wherein the body (30) comprises a first latch element (34) on an inside (32) of a sidewall (32) of the receptacle (31), -wherein the cartridge holder (20) comprises a first through recess (24) in a sidewall (22) of the insert section (21) which through recess (24) is configured to receive the first latch element (34), wherein the through recess (24) comprises a narrowed neck receiving portion (24a) extending axially into a widened latch receiving portion (24b), wherein a first lateral width (w1) of the neck receiving portion (24a) is smaller than a second lateral width (w2) of the latch receiving portion (24b).