Patent · US Active

Bung for drug containing cartridges in drug delivery devices

US9408974B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

Sanofi-Aventis Deutschland GMBH · DE

Inventors

Christian Pommereau · Frankfurt am Main, DE
Anke Liewald · Frankfurt am Main, DE

Key dates

Filing date	May 20, 2010
Grant date	Aug 9, 2016
Priority date	—
Expiry date	May 20, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M5/31573
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The present invention relates to a bung (20) for drug containing cartridges (10) for use in drug delivery devices wherein the bung (20) has a distal end face (22), a proximal end face (24) and a lateral area (26), wherein the bung (20) comprises at least two different materials, a first material (30) covering the whole lateral area (26) of the bung (20) and a second material (32) which is at least partly arranged inside the bung (20), wherein the first material (30) has a larger compressibility than the second material (32) and wherein the whole lateral area (26) has a flat surface. Furthermore, it relates to a cartridge (10) and to a drug delivery device comprising a bung (20) as claimed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.