Patent · US Active

Needle shield removal mechanism for injection device

US11426530B2 · kind B2 · utility

0Cited by

5References

15Claims

0Family size

Assignee

Sanofi-Aventis Deutschland GMBH · DE

Inventors

Peter Nober · Rommersheim, DE
Matthias Rau · Frankfurt am Main, DE
David Theysen · Mainz, DE

Key dates

Filing date	Dec 4, 2017
Grant date	Aug 30, 2022
Priority date	—
Expiry date	May 23, 2038

Classification

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

Abstract

An injection device comprises a housing for holding a syringe that has a needle at one end and (ii) a cap that is removably attached to the housing and that has a needle shield to cover said needle. The cap further comprises an actuator and a gear assembly comprising first and second linear gears and a double gear. The gear assembly is configured such that movement of the first linear gear in a first direction rotates the double gear to drive the second linear gear to urge the needle shield away from the housing. The actuator is configured to move the first linear gear in the first direction.

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