Vorrichtung zum Pumpen von Blut

摘要

The invention relates to an apparatus for pumping blood and has, in addition to a pulsing blood pump element, an active clamping valve (14, 15) at the intake side and the delivery side of the pump element, respectively, and at least one sensor section (13) on the delivery side, in which section there are sensors which function without contact and which measure pressure and flow rate. A control unit (11) registers pressure and flow rate via the sensor signals and controls the clamping valves (14, 15) and a pump (9) which raises or lowers the pressure in a housing (2) of the blood pump. A flexible vessel provided in the housing, preferably a pressure bladder (1), is compressed or expanded by the changes in pressure and in this way delivers blood in a pulsing manner. Tube attachments (3, 4) which are secured on the pressure bladder (1) lead from the pressure-sealed housing (2) outwards and to the sensor section (13) and to the clamping valves (14, 15) and allow the rest of the circuit to be connected.