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Collection assembly or test tube for a small amount of a body fluid, comprising an extender element

Abstract:

The invention relates to a collection assembly (1) for small amounts of body fluids, comprising a sample container (2) and an extender element (3). The sample container (2) has a base (13) and a container wall (5) with a first container wall section (6) and a second container wall section (7) adjoining same. The second container wall section (7) is formed hollow-conically and projects into the extender element (3). Moreover, a coupling device (25) with a first coupling element (26) and a second coupling element (27) is provided. When the coupling elements (26, 27) are in coupled engagement, the extender element (3) is coupled to the sample container (2) in a positively locked manner in the form of a snap connection establishing the collection assembly (1).