Patent · US Active

Medicament injection device

US11071832B2 · kind B2 · utility

1Cited by

0References

20Claims

0Family size

Assignee

Sanofi-Aventis Deutschland GMBH · DE

Inventors

Marc Schader · Frankfurt am Main, DE
Michael Helmer · Frankfurt am Main, DE
Peter Nober · Rommersheim, DE

Key dates

Filing date	Nov 21, 2016
Grant date	Jul 27, 2021
Priority date	—
Expiry date	Apr 4, 2037

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/3267
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An injection device comprising: a housing arranged to contain a medicament cartridge; a needle holder holding an injection needle; a generally tubular needle sleeve fixed with respect to the needle holder and axially movable with respect to the housing; and a gear assembly comprising a rotary gear fixed to the needle holder, a first gear rack disposed on the needle sleeve and a second gear rack disposed on the housing, wherein the gear assembly is arranged so that movement of the needle sleeve in a proximal axial direction causes movement of the needle holder in the proximal axial direction.

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