Patent · US Active

Drive device for a piston in a container containing an injectable product

US7862544B2 · kind B2 · utility

1Cited by

5References

18Claims

0Family size

Assignee

Roche Diagnostics International AG · CH

Inventors

Daniel Peter · Köniz, CH
Beat Spoerri · Grenchen, CH
Hanspeter Niklaus · Riken, CH

Key dates

Filing date	May 30, 2007
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Aug 26, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M5/14546
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A drive arrangement for an injection device, including a first stage, a second stage and a drive for shifting the stages, wherein the drive acts on one of the stages to shift said one of the stages first and wherein the stage which is first shifted encounters a higher resistance than does the other stage, such that the other stage is shifted.

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