FIELD: medicine.
SUBSTANCE: invention relates to an adapter for connection of a drug delivery device to a needleless access device provided with a straight external thread comprising a coupling means to mount the said adapter on a drug delivery device and an internal thread adapted to interact with the said external thread at a predetermined length L. At that, the said internal thread has, at the distal portion of the said extension L, an outer diameter D1 interfaced to the outer diameter of the said straight external thread, adapter differs by its internal thread having an outer diameter D2 at the proximal portion of the said length L, wherein D2 diameter is strictly smaller than D1, and wherein the said internal thread further comprises a tapered portion connecting the said proximal portion to the said distal portion. The invention also relates to a drug delivery device comprising such an adapter, and methods for connection of a needleless access device to an adapter, and also to a drug delivery device.
EFFECT: device improvement.
13 cl, 4 dwg
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