EKMAN, MATTHEW,HOURMAND, YANNICK,BARROW-WILLIAMS, TIMOTHY DONALD
申请号：
CA2803036
公开号：
CA2803036A1
申请日:
2011.06.27
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
The invention refers to an auto-injector (1), comprising: - an elongate housing (2) arranged to contain a syringe (3), wherein the syringe (3) is slidably arranged with respect to the housing (2), - spring means (8) capable of, upon activation: - pushing the needle (4) from a covered position inside the housing (2) into an advanced position, - operating the syringe (3) to supply the dose of medicament (M), and - retracting the syringe (3) with the needle (4) into the covered position after delivering the medicament (M), - activating means (20) arranged to lock the spring means (8) in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring means (8) for injection, wherein the spring means (8) is a single drive spring (8) in the shape of a compression spring arranged to be grounded at a distal end (8.1) in the housing (2) for advancing the needle (4) and for injecting the dose of medicament (M) via a plunger (9) and wherein the drive spring (8) is for retracting the syringe (3). The activating means (20) is arranged as a trigger button (20) laterally arranged on the housing (2).
