Housing components and medicament container for an injection device

Patent metadata

Field	Value
Publication number	US-2024198003-A1
Application number	US-202218287256-A
Country	US
Kind code	A1
Filing date	May 2, 2022
Priority date	May 3, 2021
Publication date	Jun 20, 2024
Grant date	—

Abstract

The present disclosure relates to a housing of a drug delivery device, the housing comprising: a first housing component comprising a first connecting end provided with a fastening element, the first housing component configured to accommodate a medicament container, the medicament container comprising a mechanical coding and an alignment element, a second housing component comprising a second connecting end provided with a counter fastening element complementary shaped to the fastening element, the second connecting end being connectable to the first connecting end, a counter alignment element complementary shaped to the alignment element and provided in or on the first housing component, a mechanical counter coding provided in or on the second housing component, wherein when the mechanical coding does not match the mechanical counter coding, the mechanical coding and the mechanical counter coding being operable to prevent an engagement of the fastening element with the counter fastening element.

First claim

1 .- 15 . (canceled)

16 . A housing of a drug delivery device, the housing comprising:
a first housing component comprising a first connecting end provided with a fastening element, the first housing component being shaped and configured to accommodate a medicament container, the medicament container comprising a mechanical coding and an alignment element; a second housing component configured to accommodate a drive mechanism of the drug delivery device and comprising a second connecting end provided with a counter fastening element complementary shaped to the fastening element, the second connecting end being connectable to the first connecting end; a counter alignment element complementary shaped to the alignment element and provided in or on the first housing component; and a mechanical counter coding provided in or on the second housing component; wherein when the medicament container is arranged in the first housing component and when the mechanical coding does not match the mechanical counter coding, the mechanical coding and the mechanical counter coding are operable to prevent an engagement of the fastening element with the counter fastening element.

17 . The housing according to claim 16 , wherein the first connecting end comprises a first sidewall and wherein the second connecting end comprises a second sidewall, and wherein one of the first connecting end and the second connecting end comprises an insert, and wherein the other one of the first connecting end and the second connecting end comprises a receptacle complementary shaped to the insert, and wherein the insert is insertable into the receptacle along a longitudinal direction for mutually fastening the first housing component and the second housing component.

18 . The housing according to claim 17 , wherein the mechanical counter coding comprises at least one counter coding feature and wherein the mechanical counter coding is defined by at least one of:
a number of counter coding features on the second sidewall, a circumferential position of the counter coding features relative to the counter fastening element, a circumferential extent of the counter coding features, a radial extent of the counter coding features on the second sidewall, and a cross-sectional geometry or shape of the counter coding features in a plane transverse to a longitudinal direction.

19 . The housing according to claim 17 , wherein the insert comprises a through recess in one of the first sidewall or second sidewall, the through recess being sized and shaped to receive at least one of the mechanical coding or the mechanical counter coding radially therethrough.

20 . The housing according to claim 19 , wherein the through recess provides or forms a secondary mechanical counter coding complementary shaped to the mechanical coding of the medicament container or complementary shaped to the mechanical counter coding of the second housing component.

21 . The housing according to claim 20 , wherein when the secondary mechanical counter coding does not match the mechanical coding or mechanical counter coding, the mechanical coding and the secondary mechanical counter coding are operable to prevent at least one of a complete insertion of the medicament container into the first housing component or a complete insertion of the insert into the receptacle.

22 . The housing according to claim 16 , wherein one of the fastening element and the counter fastening element comprises a fastening projection, and wherein the other one of the fastening element and the counter fastening element comprises a fastening recess.

23 . The housing according to claim 22 , wherein the fastening projection comprises a snap element, and wherein the fastening recess comprises a counter snap element complementary shaped to the snap element.

24 . The housing according to claim 22 , wherein the fastening recess comprises a fastening groove comprising a first groove portion and a second groove portion, wherein the first groove portion extends along a longitudinal direction and wherein the second groove portion extends along a circumferential direction and merges into the first groove portion.

25 . The housing according to claim 16 , wherein one of the mechanical coding and the mechanical counter coding comprises a radial coding projection, and wherein the other one of the mechanical coding and the mechanical counter coding comprises a coding recess complementary shaped to the radial coding projection.

26 . The housing according to claim 25 , wherein the coding recess comprises a coding groove comprising a first groove portion and a second groove portion, wherein the first groove portion extends along a longitudinal direction and wherein the second groove portion extends along a circumferential direction and merges into the first groove portion.

27 . The housing according to claim 16 , wherein one of the alignment element and the counter alignment element comprises an alignment projection, and wherein the other one of the alignment element and the counter alignment element comprises an alignment recess complementary shaped to the alignment projection.

28 . A medicament container comprising:
a barrel sized and configured for insertion into a first housing component of a housing of a drug delivery device, wherein the housing comprises:
the first housing component comprising a first connecting end provided with a fastening element, the first housing component being shaped and configured to accommodate the medicament container, the medicament container comprising a mechanical coding and an alignment element,
a second housing component configured to accommodate a drive mechanism of the drug delivery device and comprising a second connecting end provided with a counter fastening element complementary shaped to the fastening element, the second connecting end being connectable to the first connecting end,
a counter alignment element complementary shaped to the alignment element and provided in or on the first housing component, and
a mechanical counter coding provided in or on the second housing component, wherein when the medicament container is arranged in the first housing component and when the mechanical coding does not match the mechanical counter coding, the mechanical coding and the mechanical counter coding are operable to prevent an engagement of the fastening element with the counter fastening element;
the alignment element on the barrel sized and shaped to engage with the counter alignment element of the first housing component when the barrel is inserted in a longitudinal direction into the first housing component; and the mechanical coding on the barrel sized and shaped to engage with the mechanical counter coding of the second housing component when the first housing component with the barrel arranged inside is connected to the second housing component.

29 . The medicament container according to claim 28 , wherein the mechanical coding comprises at least one coding feature and wherein the mechanical coding is defined by:
a number of the at least one coding feature on the barrel, a circumferential position of the at least one coding feature relative to the alignment element on the barrel, a circumferential extent of the at least one coding feature, a radial extent of the at least one coding feature on the barrel, and a cross-sectional geometry or shape of the at least one coding feature in a plane transverse to the longitudinal direction.

30 . An injection device comprising:
a housing of a drug delivery device, the housing comprising:
a first housing compone

Assignees

• Sanofi Sa

Inventors

• Franke Beate
• Helmer Michael

Classifications

• A61M2205/19

  Constructional features of carpules, syringes or blisters · CPC title

• A61M2005/3142

  Modular constructions, e.g. supplied in separate pieces to be assembled by end-user · CPC title

• A61M2005/2403

  Ampoule inserted into the ampoule holder · CPC title

• A61M5/3129

  Syringe barrels (A61M5/3205 and A61M5/50 take precedence) · CPC title

• A61M2205/6036

  characterised by physical shape, e.g. array of activating switches · CPC title