Thomas Mark Kemp;Matthew Ekman;Timothy Donald Barrow-Williams
发明人:
Thomas Mark Kemp,Timothy Donald Barrow-Williams,Matthew Ekman
申请号：
US13580271
公开号：
US09205199B2
申请日:
2011.02.16
申请国别(地区):
US
年份:
2015
代理人:
摘要：
An auto-injector may be used to administer a dose of a liquid medicament (M). In some embodiments, a shroud is arranged inside a housing, the shroud slidable in longitudinal direction between at least a retracted position, in which a hollow injection needle is exposable and an advanced position, in which the needle is covered by the shroud. A protective needle shield is attachable to the needle in a manner to partially protrude beyond the proximal end of the shroud through the orifice with the needle in its advanced position. A syringe carrier is arranged inside the shroud and comprises at least one snap for locking it to the shroud in order to prevent relative axial motion. The snap is configured to automatically disengage upon removal of the protective needle shield to allow the syringe and needle to be retracted into the covered position under load of the syringe spring.
