| 摘要 |
An active implantable medical device, in particular a pacemaker, cardioverter, defibrillator and/or a multisite device having circuits for measuring a trans-septal bio-impedance. This device is used with electrodes placed in a plurality of distinct respective sites comprising at least one left ventricular site and one right atrial site. These electrodes are connected to a collection circuit for collecting cardiac signals, in particular to detect a potential of depolarization, and to a stimulation circuit, to apply stimulation pulses to at least some of the aforementioned sites. The device evaluates the cardiac flow by obtaining an intracardiac measurement of the bio-impedance, more particularly measuring the trans-septum bio-impedance between the left ventricle and the right atrium, by injection of a current (16) between an atrial site (RA-) and a ventricular site (LV-), and collection of a differential potential (20) between an atrial site (RA+) and a ventricular site (LV-).
|
