Title:
A spring load type injection device provided with an injection button
Document Type and Number:
Japanese Patent JP6240193
Kind Code:
B2
Abstract:
The present invention relates to a spring-loaded medical injection device for automatically ejecting set doses of a drug having an injection button (10). The injection device comprises a housing having a dose setting member (20) for straining an injection spring when setting the size of the dose to be injected and a release element (30) for releasing the strained injection spring to eject the set dose. The injection button (10) is movable in a distal direction against the bias of a return spring (1) and movable in a proximal direction by the force of the return spring (1). Further, the injection button (10) moves with it the release element from a first position to a second position. The release element (30) is further coupled to the injection button (10) by a plurality of fingers (31, 15) which disengages the injection button (10) from the release element (30) in the first position and engages the injection button (10) with the release element (30) in the second position, such that the injection button (10) can move a distance axially independently of the release element (30) in the first position and the injection button (10) and the release element (30) move axially together in the second position.
Inventors:
Melandel, Matthias
Avrund, Mikel
Avrund, Mikel
Application Number:
JP2015527886A
Publication Date:
November 29, 2017
Filing Date:
August 19, 2013
Export Citation:
Assignee:
Novo Nordeisk A/S
International Classes:
A61M5/20; A61M5/315
Domestic Patent References:
| JP2008528071A | ||||
| JP2009519788A |
Foreign References:
| US5320609 |
Attorney, Agent or Firm:
Sonoda/Kobayashi Patent Business Corporation