Patent ID: 8827955
Filing Date: 2014-09-09
Classification: A61M

Abstract:
1. A cannula device comprising: a base body made of plastic, said base body comprising a cannula with a cannula tip; said base body having a safety body, which is integral with the base body and hingedly connected thereto; wherein the safety body is configured to be moved in relation to the base body out of a first position, in which the cannula tip in an as-delivered state of the cannula device is covered to protect the user from injury, into a second position, in which the cannula tip is exposed for use of the cannula device, and wherein, after the use of the cannula device, the safety body is configured to be moved back into a third position in which the cannula tip is covered to protect the user from injury and the safety body is irreversibly locked onto the base body by a third fixation means, the third fixation means comprising at least one first catch projection protruding away from the base body and at least one first catch recess allocated to the at least one catch projection in at least one side wall of the safety body; the safety body in the as-delivered state being connected to the base body by a tamper-proof closure; wherein the base body has a proximal section comprising a Luer cone or a Luer connecting body, and wherein the base body has a distal section having a T-shaped geometry; wherein, to form the tamper-proof closure, the distal section is bonded or ultrasonically welded to the safety body, or, leading away from at least one side of a longitudinal leg of the T-shaped distal section of the base body, a recess for a projection connected to the at least one side wall of the safety body, and pivotable along the side, is connected to the side wall via a breaking point, and the projection is affixed in the recess in the first position.