Patent ID: 7113827
Filing Date: 2006-09-26
Classification: A61B,A61N

Abstract:
1. An active implantable medical device, in particular a cardiac pacemaker, defibrillator, cardiovertor and/or “multisite” device, for use with a detection and stimulation probe allowing the delivery to the heart of the pulses of low energy for the treatment of the disorders of the cardiac rhythm, comprising, a metallic case containing a generator and a connector head, said generator being selectively configured to produce stimulation pulses in a monopolar mode and in a bipolar mode, said connector head comprising at least a first terminal and a second terminal able to be connected to a stimulation probe; said generator further comprising a reference potential, a first switch controllable to connect and disconnect said first terminal to said reference potential, and a second switch controllable to connect said second terminal to said reference potential, and means for detecting the presence of a probe connected to the connector head, said probe being able to be a monopolar probe or a bipolar probe; wherein said probe detecting means further comprises: means for selectively producing monopolar stimulation pulses to one of said first and second terminals and bipolar stimulation pulses to said first and second terminals and controlling said first and second switches, wherein said stimulation pulses are deliverable, selectively with or without a reference potential connection; means for detecting at least one pulse signal corresponding to a variation of potential induced on one of said first and second terminals and the metallic case in response to an applied stimulation pulse; discriminating means for analyzing the pulse width of said at least one detected pulse signal and for delivering an indicator as a function of said analyzed pulse width representative of the presence or absence of a probe connected to said connector head; and control means for selectively modifying at least one operating parameter according to the delivered indicator.