Cap assembly for a drug delivery device and drug delivery device

Patent metadata

Field	Value
Publication number	US-10617829-B2
Application number	US-201414914493-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Aug 29, 2013
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A cap assembly (200) for a drug delivery device is presented. The cap assembly (200) comprises a fixing element (134) with a connection feature (154), an outer part (130) with an opening (164), and an inner part (131) being located inside of the outer part (130), the inner part (131) further comprising a corresponding connection feature (170), wherein a section of the fixing element (134) extends through the opening (164) of the outer part (130), such that the fixing element (134) is connected to the inner part (131) by an interaction of the connection feature (154) and the corresponding connection feature (170).

First claim

The invention claimed is:

1. A drug delivery device comprising:
a housing;
a drive mechanism at least partially disposed within the housing; and
a cap assembly removably secured to the housing, the cap assembly comprising:
a single fixing element with a connection feature,
an outer part with an opening extending through a lateral portion of the outer part, and
an inner part being located inside of the outer part, the inner part comprising a corresponding connection feature, wherein a section of the single fixing element extends through the opening of the outer part such that the single fixing element is connected to the inner part by an interaction of the connection feature and the corresponding connection feature,
wherein, to retain the inner part within the outer part, a distal facing surface of the connection feature abuts a proximal facing surface of the corresponding connection feature, a lateral facing surface of the corresponding connection feature abuts the single fixing element, and a distal facing surface of the opening of the outer part abuts a proximal facing surface of the single fixing element.

2. The drug delivery device according to claim 1 , wherein the interaction of the connection feature and the corresponding connection feature is a snap-interaction.

3. The drug delivery device according to claim 1 , wherein the single fixing element is configured such that the connection feature blocks movement of the inner part with respect to the outer part such that the inner part is retained within the outer part.

4. The drug delivery device according to claim 1 , wherein the single fixing element is configured such that the single fixing element blocks movement of the outer part with respect to the inner part.

5. The drug delivery device according to claim 1 , wherein the inner part is a sleeve and the cap assembly is dimensioned such that at least a section of a cartridge of the drug delivery device and an injection needle of the drug delivery device can be accommodated by the inner part.

6. The drug delivery device according to claim 1 , wherein the single fixing element is a clip for attaching the cap assembly to a further element.

7. The drug delivery device according to claim 1 , wherein the single fixing element comprises an attachment feature and the outer part comprises a depression which is axially spaced from the opening of the outer part, and wherein the attachment feature is in contact with the outer part within the depression.

8. The drug delivery device according to claim 1 , wherein the single fixing element comprises a guiding element and the outer part comprises a corresponding guiding feature, wherein the guiding element and the corresponding guiding feature are configured to cooperate to prevent a radial movement of the single fixing element with respect to the outer part.

9. The drug delivery device according to claim 8 , wherein the guiding element comprises a T-shaped section.

10. The drug delivery device according to claim 8 , wherein the opening of the outer part is configured to define the corresponding guiding feature.

11. The drug delivery device according to claim 10 , wherein the opening of the outer part is configured to receive a receiving portion of the guiding element such that the receiving portion is arranged inside of the outer part, and wherein the corresponding guiding feature is configured to receive a guiding portion of the guiding element such that the guiding portion is arranged inside the corresponding guiding feature.

12. The drug delivery device according to claim 1 , wherein the outer part is a metal part.

13. The drug delivery device according to claim 1 , wherein the inner part is a plastic part.

14. The drug delivery device according to claim 1 , wherein the cap assembly has a distal end, a proximal end, and an opening at the proximal end, wherein the outer part has a proximal section and a cavity located at an inner surface of the proximal section, wherein the inner part has a proximal section which comprises a deformable region and a cap snap feature, and wherein the deformable region of the inner part is deformable into the cavity of the outer part.

15. The drug delivery device according to claim 1 , wherein the connection feature of the single fixing element extends through a distal portion of the outer part.

16. The drug delivery device according to claim 1 , wherein the single fixing element comprises a fixing portion comprising a longitudinally extending portion connected to a curved portion, and wherein the connection feature is connected to the longitudinally extending portion and the curved portion.

17. The drug delivery device according to claim 1 , wherein the inner part is a single inner part, and the outer part is a single outer part.

18. The drug delivery device according to claim 1 , wherein the single fixing element comprises a guiding element comprising a T-shaped section, wherein the lateral facing surface of the corresponding connection feature abuts the T-shaped section, and the proximal facing surface of the fixing element is a proximal facing surface of the T-shaped section.

Assignees

• Sanofi Aventis Deutschland

Inventors

• Plumptre David Aubrey

Classifications

• A61M5/31545

  Setting modes for dosing · CPC title

• A61M2205/581

  by audible feedback · CPC title

• B43K25/022

  attached to a pen cap · CPC title

• B43K23/126

  with clips · CPC title

• A61M5/3202 Primary

  Devices for protection of the needle before use, e.g. caps (A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001) · CPC title