Medicament delivery devices
AssigneeSanofi-Aventis Deutschland GmbH
InventorsUlrich Brüggemann, Christopher Langley, Christopher Jones, Scott Preece
Life of this patent
Estimating the term…
Abstract
A medicament delivery device comprises a housing, a holder within the housing for receiving a medicament cartridge, a piston rod for driving a bung of the medicament cartridge, a drive mechanism including a motor for providing an output drive to the piston rod for delivering the medicament and control means for controlling operation of the device. The device is additionally provided with a bung sensor for sensing when the piston rod is in contact with the bung and the control means is operative for advancing the drive of the piston rod towards the bung.
Claims10
A medicament delivery device for delivering a medicament to a patient, wherein the medicament delivery device comprises:
- a housing;
- a holder within the housing for receiving a medicament cartridge;
- a piston rod for driving a bung of the medicament cartridge;
- a drive mechanism including a motor for providing an output drive to the piston rod for delivering the medicament;
- and control means for controlling operation of the device;
- characterised in that:
- a bung sensor is provided for sensing when the piston rod is in contact with the bung;
- wherein the control means is operative for advancing the drive of the piston rod towards the bung.
Dependencies are inferred from the claim text.