FIELD: pumps; medicine.
SUBSTANCE: invention relates to a pumping device intended for medical application, for example, to a pumping device for water-jet surgery. Pumping device for medical use comprises at least one cylinder with a piston installed therein, the first channel communicating with the cylinder, in which the first valve with the first shutoff element interacting with the first valve seat is located, the second channel is connected with the cylinder, in which the second valve with the second shutoff element interacting with the second valve seat is located. At least one of the shut-off elements of the valves has an elastic rod-like part with which it is placed in a non-flowing support structure located opposite the valve seat.
EFFECT: invention has a simple and convenient design with respect to preservation of its sterility, and also provides as easy as possible air removal from liquid.
16 cl, 8 dwg
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