Novo Nordisk A/s

Claus Urup Gjoedesen

Ken Hansen

Imran Ghulam

Jesper Bach Noergaard

Asger Meng Larsen

Tom Hede Markussen

Claus Schmidt Moller

Bo Radmer

Lars Peter Klitmose

Jesper Peter Windum

Christian Hoejris Nielsen

Knud Winther

Martin Majdall Petersen

Niels Christian Egholm Soerensen

Kim Roennow Sejtzer

The invention relates to a torsion spring driven injection device for ejecting set doses of a liquid drug. In a first aspect the torsion spring driven injection device is provided with a blocking structure which is operated by the rotatable display element such that the set dose can only be expelled when a certain minimum dose size has been set. In a second aspect the torsion spring driven injection device is provided with a release mechanism which secures that the set dose can only be expelled as one single full dose in one stroke. The two aspects can easily be combined such that the predetermined minimum dose size most be expelled as one single dose.

Torsion spring driven injection device

The invention relates to a medical injection device having a polymeric housing or housing parts. The housing comprises a moulded outer housing element and a moulded elongated tubular inner housing element. The elongated tubular inner housing element is formed as one unitary element and carries a pointer and one or more projections in predetermined and correlated positions. The pointer points to indicia on a scale drum and the projections engage the scale drum. The outer housing element is moulded over the elongated tubular inner housing element in a 2K moulding to form one single housing component.

Housing for a medical injection device

The invention relates to a medical injection device having polymeric housing. The housing comprises a moulded outer housing element and a moulded ring-shaped unitary element. The ring-shaped unitary element carries a pointer and a thread segment in predetermined and correlated positions. The pointer points to indicia on a scale drum and the thread segments guides the scale drum. The outer housing element is moulded over the unitary element to form one single component.

Method for moulding a polymeric housing for a medical injection device

The present invention relates to injection devices for injecting a medicament from a cartridge () through a needle cannula (). The injection device () includes an actuator () for driving a piston driver () and includes an end of stroke limiter (). When the piston driver () is arrested by the end of stroke limiter () a shielding driver () is automatically triggered to actively shift the needle cannula () into a shielded state. The injection device may include a fluid dispensing interruption mechanism that automatically interrupts fluid flow when the piston driver has moved a predetermined stroke length. The injection device may also include a single pre-stressed spring acting exclusively in a linear compression mode or exclusively in a torsion mode and adapted to sequentially drive the device to enable fully automatic operation. The invention also relates to a method of sterilizing a needle cannula assembly.

Medical injection device

The invention relates to an injection device for injecting a dose of drug. The injection device comprises a housing, a dose setting mechanism being operable to set a desired dose, an injection mechanism comprising a piston rod () adapted to cooperate with a piston positioned in a cartridge containing a drug to be delivered in order to cause a set dose to be delivered from the cartridge via the injection device, a dosage tube (), and retaining means arranged to prevent axial movement of the dosage tube in a distal direction relatively to the housing during dose setting. The dose setting mechanism comprises a rotatable dose knob (), operation of the dose setting mechanism causing energy to be stored in a spring member. The injection mechanism is driven by releasing energy previously stored in the spring member during dose setting.

Injection device comprising a locking nut

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Copenhagen, Denmark

Claus Urup Gjoedesen