Patent ID: 7790115

Claim:
A pipetting device comprising: a pipetting unit including an inner wall, a first end with a discharge opening, and a second, open end; a sleeve-like receptacle unit received in the second, open end of the pipetting unit, and including an open end and a closed end joined by a side wall; an application chamber defined by said inner wall between said closed end of said sleeve-like receptacle unit and said first end of said pipetting unit; at least two axially spaced sealing lips projecting inwardly from said inner wall that engage said sleeve-like receptacle unit, said sleeve-like receptacle unit being guided axially on said at least two sealing lips, said sleeve-like receptacle unit having at least one side opening formed in said side wall having an axial dimension, the axial dimension of said at least one side opening being less than or equal to the distance between the sealing lips, whereby the receptacle unit can be moved with respect to the pipetting unit from a closed position into an activation position, in which an interior of the receptacle unit is in communication via the at least one side opening of the receptacle unit with the application chamber of the pipetting unit.