Title:
用量設定装置
Document Type and Number:
Japanese Patent JP4187794
Kind Code:
B2
Abstract:
The present invention relates to a drug delivery device wherein a dose to be apportioned from a cartridge is set by changing the relative position of co-operating dose setting elements (3, 5) and is injected by pressing a button (5) until this button abuts a stop (6). By operation of count up (7) or count down (8) buttons the dose is set and read into an electronic circuit (9) comprising a microprocessor and the dose setting movement of the dose setting elements relative to each other is performed by a motor (11) controlled by the circuit in accordance with the read in dose. The set dose is shown on a display (10). The motor (11) is further controlled to perform certain movements of the piston rod (3) so as retraction of this rod when a cartridge (1) is going to be changed an advancing of the piston rod to abutment with the piston (2) after the cartridge has been changed and further to advance this piston to expel air from the cartridge.
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Inventors:
Paulsen, Jens Ullik
Lung-Green, Henrik
Christensen, Lars Hoffman
Lung-Green, Henrik
Christensen, Lars Hoffman
Application Number:
JP50466698A
Publication Date:
November 26, 2008
Filing Date:
June 09, 1997
Export Citation:
Assignee:
NOVO NORDISK AKTIE SELSXAB
International Classes:
A61M5/145; A61M5/20; A61M5/172; A61M5/315
Domestic Patent References:
| JP6007445A | ||||
| JP54039685A | ||||
| JP5154197A | ||||
| JP7250895A | ||||
| JP6007440A | ||||
| JP7184938A | ||||
| JP6154322A | ||||
| JP48076795U | ||||
| JP63286166A | ||||
| JP6296691A | ||||
| JP4507059A | ||||
| JP2500340A |
Foreign References:
| US3811442 | ||||
| DE4208677A1 | ||||
| US5389078 | ||||
| US4695271 |
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Ryo Hashimoto
Toshio Shirane
Sadao Muramatsu
Ryo Hashimoto
Toshio Shirane