Novo Nordisk A/s

Henning Graaskov

Henrik Bengtsson

Jan Harald Preuthun

Lars Eilertsen

Mads Schenstroem Stefansen

Emil Gram Spork

Ronan Carroll

Thomas Bjarnsholt

Claus Moser

Soeren Steenfeldt-Jensen

The present invention relates to a pre-filled disposable injection device and a needle cannula in combination. The prefilled disposable injection device () is made from a housing () containing a non-exchangeable cartridge () for storing a liquid drug sufficient for a number of injections. The proximal end of the pre-filled injection device () carries the dose setting button () and the distal end carries the needle cannula () having a lumen () through which the settable dose is expelled. The distal end () of the needle cannula () is covered by a telescopic needle covering shield () which shield () can operate between a first position covering the tip () of the needle cannula () and a second retracted position allowing an injection to be performed. The shield () carries a cleaner () which cleans at least the tip () of the needle cannula () between successive injections such that the prefilled injection device can be used without changing the needle cannula () during its life cycle.

Pre-filled disposable injection device

The present invention relates to a piston washer () for use in a drug delivery device for transferring a distally directed axial force from a piston rod () towards a piston () of a held cartridge (). The piston washer () defines a proximal surface portion () adapted for engagement with the distal portion of a piston rod () and a distal surface portion () configured to engage and abut a piston (). An axial distance defining device () is positioned between the proximal surface portion () and the distal surface portion (), wherein the axial distance defining device () is configured to be shifted from a first axial compressible state into a second axial non-compressible state. The invention further relates to a drug delivery device incorporating such piston washer ().

Piston washer for a drug delivery device and drug delivery device incorporating such piston washer

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Bagsvaerd, Denmark

Henning Graaskov