Novo Nordisk A/s

Mikkel Avlund

Matias Melander

Bo Radmer

Andre Larsen

Christian Hoejris Nielsen

Morten Revsgaard Frederiksen

Ebbe Kiilerich

Torben Stroem Hansen

Hans Hemmingsen

A drug delivery device is provided comprising a housing having an exterior surface, a drug-filled reservoir with an outlet, drug expelling means, and a flexible sheet. On the flexible sheet is formed or mounted input means adapted to be actuated corresponding to an event indicative of drug being expelled, a display adapted to display a time parameter, a processor, and an energy source. The processor is adapted to, based on input from the detection means, control the display to display a time parameter related to the time the event was detected, and the flexible sheet is attached at least in part to the outer surface of the housing.

Drug delivery device with time indicator feature

The present invention relates to a spring-loaded medical injection device for automatically ejecting set doses of a drug having an injection button (). The injection device comprises a housing having a dose setting member () for straining an injection spring when setting the size of the dose to be injected and a release element () for releasing the strained injection spring to eject the set dose. The injection button () is movable in a distal direction against the bias of a return spring () and movable in a proximal direction by the force of the return spring (). Further, the injection button () moves with it the release element from a first position to a second position. The release element () is further coupled to the injection button () by a plurality of fingers () which disengages the injection button () from the release element () in the first position and engages the injection button () with the release element () in the second position, such that the injection button () can move a distance axially independently of the release element () in the first position and the injection button () and the release element () move axially together in the second position.

Spring-loaded injection device with an injection button

The present invention relates to an automatic torsion spring based injection device having a dial-up/dial-down mechanism by which a dose can be set by rotating a dose setting member in a first direction and which dose size can be reduced by rotating the same dose setting member in a second and opposite direction. The dial-up/dial-down mechanism operates a torsion spring which is strained when setting a dose and unstained when rotating the dose setting element in the second direction. In order to secure the torsion spring when strained, a ratchet arm () following the rotation of the dose setting element in the first direction, engages a toothed element () such that engagement of the at least one ratchet arm () with teeth () of the toothed element () prevents unwinding of the torsion spring, and wherein the rotation of the dose setting member in the first direction moves the ratchet arm () from one tooth () to the subsequent tooth () of the toothed element (), and rotation of the dose setting member in the second direction lowering the set dose activates the ratchet arm () to disengage the teeth () of the toothed element () and thereby allow the torsion spring to move the ratchet arm () in the second direction to the previous tooth () such that the force accumulated in the torsion spring reduces incrementally. In order to provide a smooth movement when dialing down the set dose, the at least one ratchet arm () is provided o a ratchet tube () which carries friction teeth () which engage with a cam curve () of the toothed element, dampening the movement of the ratchet arm () by the torsion spring.

Torsion-spring based wind-up auto injector pen with dial-up/dial-down mechanism

An injection device is disclosed which comprises a housing () with a display for showing the size of a set dose. The display is formed from a number of individual ciphers () which each comprises a plurality of segments () extending horizontally and vertically. At the end of the injection device a dose setting element () is provided for allowing the user to set the size of the dose to be injected. Further, the display mechanism comprises a first pattern () for showing the vertical segments (), and a second pattern () for showing the horizontal segments (). The patterns () are associated with the dose setting button () and arranged to be moved when the dose setting button () is operated. The injection device disclosed can have any number of ciphers () which is coupled to each other in order to show to the user the size of any dose set.

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Soeborg, Denmark

Mikkel Avlund