Patent · US Active

Drive mechanism for a drug delivery device

US12064607B2 · kind B2 · utility

0Cited by

1References

21Claims

0Family size

Assignee

Sanofi · FR

Inventors

Stefan Bayer · Würselen, DE
Daniel Berning · Baesweiler, DE
Philippe Blank · Düsseldorf, DE
Wolfgang Pelzer · Kreuzau, DE
Björn Wilden · Simmerath, DE

Key dates

Filing date	Mar 1, 2022
Grant date	Aug 20, 2024
Priority date	—
Expiry date	Mar 1, 2042

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/3152
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The present invention relates to a drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament, the drive mechanism comprising: a housing, a piston rod to operably engage with a piston of a cartridge to displace the piston in a distal direction, a rotatable member arranged on an axially extending axis of rotation in the housing, said rotatable member being rotatable in a dose incrementing direction against an action of a spring element and being operably engageable with the piston rod during the dispensing of the dose, and a clutch element comprising at least one radially displaceable clutch element to engage with a rim of the rotatable member with a variably adjustable strength.

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