Patent · US Active

Medicament injection device with spring-assisted protective needle cap

US10918804B2 · kind B2 · utility

0Cited by

2References

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	Feb 16, 2021
Priority date	—
Expiry date	Oct 19, 2037

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/2474
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A medicament injection device including: a main body; a medicament cartridge holder fixed with respect to the main body, wherein the medicament cartridge holder is configured to hold a medicament cartridge; a needle carrier carrying a needle, wherein the needle carrier is axially movable with respect to the main body; and a rotatable cap at a distal end of the device, wherein the cap includes a first pre-stressed spring coupled to the needle carrier, wherein the cap is arranged so that rotational movement thereof causes release of the first pre-stressed spring thereby causing the needle carrier to move axially towards a proximal end of the device.

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