ANORDNING FOR BLODPROEVETAGNING.

摘要

A device for taking blood samples, comprising a cannula (1) and a substantially cylindrical holder (6) whose one end has an aperture (7) for insertion of the cannula, while the other end of the holder is open for insertion of a container for a blood sample. The end of the holder where the cannula can be inserted comprises a movable element (11) having a relatively to the holder axial, through going aperture for the insertion of the cannula, and in the vicinity of this aperture the element has at least one locking element (13) adapted to be placed in a locking position axially outside of at least one radial protrusion (4) on the cannula (1). In addition the element (11) has, in the vicinity of the aperture, at least one edge or surface (14) which by movement of the element in a direction which brings the locking element (13) away from the locking position comes into engagement with the under side of the protrusion (4) or with one or more additional protrusions on the cannula, in order to disengage the cannula from the holder (6) by continued movement of the element.