Patent ID: 7440801

Claim:
An active implantable medical device comprising: a case, said case comprising a generator and a power supply battery for the generator, said battery having an output current, and said generator capable of producing monopolar stimulation impulses and bipolar stimulation impulses from said output current; a connector head connected to said case and equipped with at least two terminals capable of being connected to electrodes of a detection and stimulation probe, said probe capable of being a monopolar probe or a bipolar probe; and means for detecting the initial connection of a probe to the connector, said means comprising: means for scanning a consumption by the generator of the battery output current, said scanning means being capable of measuring the output current over a first time interval and delivering a measured value of the current; comparator means capable of comparing the measured value of the current with a pre-programmed threshold current value and indicating that the probe is connected to the connector in response to the measured value exceeding the pre-programmed threshold; and means responsive to the measured value not exceeding the pre-programmed threshold current value for: detecting and counting spontaneous depolarizations collected between the terminals of the connector head; comparing the number of depolarizations thus counted with a pre-programmed counting threshold; and delivering a signal of potential initial connection in the event the number of depolarizations thus counted crosses the counting threshold to change a functional mode of the device.