Novo Nordisk A/s

Daniel Patrick Godskesen True

Klaus Bendix

Soeren Kjellerup Hansen

Helle Ravn Thomsen

Modesto Javier Mora Benito

Dan Noertoft Soerensen

Dan Nørtoft SØRENSEN

Søren Kjellerup Hansen

The present invention provides a drug delivery device () comprising: a drug reservoir () comprising a reservoir body () extending along a reference axis and an elastomeric stopper () arranged in the reservoir body (), the elastomeric stopper () comprising a stopper body () extending between a front stopper end () and a rear stopper end () and having a plurality of axially spaced apart circumferential ribs () for sealing interaction with an interior wall () of the reservoir body (), and a plunger rod structure () for displacing the elastomeric stopper () relative to the interior wall (), the plunger rod structure () extending along the reference axis and comprising a distal end face () adapted to interface with the rear stopper end (). The distal end face () comprises a first force transferring portion () and a second force transferring portion (), the first force transferring portion () axially leading the second force transferring portion () and being adapted to interact with a peripheral portion of the rear stopper end ().

Drug delivery device with plunger rod having nonuniform stopper interface

An injection needle assembly () for an injection device, having a) a needle cannula () attached to a needle hub () and defining a pointed tip at a free end (), and b) a needle cover () forming an axially extending elongated flexible enclosure accommodating the needle cannula (). The needle cover () is configured to axially collapse and become penetrated by the needle cannula () when a penetration force is applied to the needle cover. The needle cover () defines a shaft section () and a bulb section (). The shaft section () encircles the needle cannula () and extends axially from the needle hub () to the bulb section (). The shaft section () comprises a collapsible wall area () having wall thickness tless than a predefined wall thickness tto provide radial deformability for abutting contact with the needle cannula ().

Injection needle assembly for an injection device and an injection device comprising such assembly

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Hellerup, Denmark

Daniel Patrick Godskesen True