Title:
The automatic syringe with an inner side plunger which carries out engaging-of-clutch release with an outside plunger, and retreats a Syringe career
Document Type and Number:
Japanese Patent JP6043805
Kind Code:
B2
Abstract:
Described is an autoinjector (1) comprising a case (2), a chassis (8) slidably arranged in the case (2), a syringe carrier (4) operably coupled to the chassis (8), an outer plunger (7) selectively engaged to the chassis (8), an inner plunger (12) selectively engaged to the outer plunger (7), and a drive spring (6) applying a biasing force to the outer plunger (7). The biasing force is applied to the inner plunger (12) when the inner plunger (12) is engaged to the outer plunger (7). Rotation of the chassis (8) causes the inner plunger (12) to rotate relative to the outer plunger (7) and disengage the outer plunger (7) to remove the biasing force from the drive spring (6) on the inner plunger (12). When the inner plunger (12) disengages the outer plunger (7), the biasing force of the drive spring (6) pushes the chassis (8) to retract the syringe carrier (4) relative to the case (2).
Inventors:
Yannick Huamand
Simon Briaton
Thomas Mark Kemp
Rosie Burnell
Matthew Ekman
Simon Briaton
Thomas Mark Kemp
Rosie Burnell
Matthew Ekman
Application Number:
JP2014547956A
Publication Date:
December 14, 2016
Filing Date:
December 19, 2012
Export Citation:
Assignee:
Sanofi-Aventis Deutschland Gesellschaft Mitt Beschlenktel Haftung
International Classes:
A61M5/20
Domestic Patent References:
| JP2010540059A | ||||
| JP2008229344A |
Foreign References:
| WO2011101383A1 | ||||
| WO2011101379A1 | ||||
| WO2008113864A1 |
Attorney, Agent or Firm:
Junji Yuda
Noriyuki Takebayashi
Noriyuki Takebayashi
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