Method and device for recording the flow rate of a blood flow and heart/circulation support device

摘要

The device (1) has an electrical power source (13) providing excitation energy e.g. pulse voltage, to an excitation electrode (7a) of microelectrodes (7) provided in a bloodstream of a patient. A signal detection stage (17) is connected to a measuring electrode (7b) of the microelectrodes to detect an electrical measured signal at the measuring electrode resulting from the blood flow when the excitation energy is provided to the excitation electrode. A signal evaluation stage (19) is in communication with the signal detection stage to determine the blood flow rate based on the measured signal.