| 主权项 |
1. An adaptor for mounting on a distal tip of a drug delivery device, said distal tip defining an axial passage-way for the transfer of a product contained in said drug delivery device, said adaptor having a longitudinal axis aligned on said axial passageway, the adaptor comprising a connector element for connecting said adaptor to a connector, said adaptor further comprising:
an inner ring capable of being engaged on said distal tip, said inner ring comprising a retainer capable of exerting a radial inward force on said distal tip once said adaptor is engaged on said distal tip, wherein, when said inner ring is engaged on said distal tip, said retainer is capable of transitioning from a free configuration, in which the radial inward force said retainer exerts on said distal tip does not limit an axial movement of said adaptor with respect to said distal tip, to a locked configuration, in which the radial inward force said retainer exerts on said distal tip limits said axial movement, the adaptor further comprising: a compression element coupled to said inner ring, said compression element being movable axially with respect to said retainer between a proximal position, in which said compression element does not exert a centripetal pressure on said retainer and said retainer is in the free configuration, and a distal position, in which said compression element exerts a centripetal pressure on said retainer and said retainer is in the locked configuration, and a releasable restraining element for temporarily maintaining said compression element in the proximal position with respect to said retainer. |
