US 9,808,638 B2
Active implantable medical device with cardiac lead and peripheral lead discrimination
Hervé Blumstein, Mévoisins (FR); and Hervé Mével, Chastre (BE)
Assigned to SORIN CRM SAS, Clamart (FR)
Filed by SORIN CRM SAS, Clamart (FR)
Filed on Nov. 18, 2015, as Appl. No. 14/945,171.
Claims priority of application No. 14 61187 (FR), filed on Nov. 19, 2014.
Prior Publication US 2016/0136445 A1, May 19, 2016
Int. Cl. A61N 1/00 (2006.01); A61N 1/39 (2006.01); A61N 1/36 (2006.01); A61N 1/362 (2006.01); A61N 1/368 (2006.01); A61N 1/37 (2006.01); A61N 1/05 (2006.01); A61N 1/08 (2006.01)
CPC A61N 1/3962 (2013.01) [A61N 1/362 (2013.01); A61N 1/3605 (2013.01); A61N 1/3686 (2013.01); A61N 1/37 (2013.01); A61N 1/0551 (2013.01); A61N 1/36114 (2013.01); A61N 1/3702 (2013.01); A61N 2001/083 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An active implantable medical device comprising:
a cardiac therapy circuit configured to generate stimulation, defibrillation and/or resynchronization pulses;
a peripheral therapy circuit configured to generate peripheral stimulation pulses;
first and second connection terminals, each adapted to receive either a first lead or a second lead;
wherein one of the leads is a cardiac detection/stimulation lead and the other is a peripheral detection/stimulation lead; and
a processor configured to determine a respective connection configuration of the leads to the first and second connection terminals and selectively activate or inhibit the cardiac and peripheral therapy circuits by:
collecting a signal on the first connection terminal and the second connection terminal;
analyzing the signals to detect whether a cardiac signal is present by conducting a level test by collecting signals on the first and second connection terminals during a predetermined detection window, wherein the level test comprises detecting whether a cardiac signal is present on the terminal when a level of the signal on the corresponding terminal exceeds a given threshold;
conducting a level comparison, wherein the level comparison is a calculation of a difference between the levels of the signals respectively collected on the first and second terminals detected by the level test;
coupling the cardiac therapy circuit to the connection terminal wherein a high signal level was collected;
coupling the peripheral therapy circuit to the connection terminal wherein a low signal level was collected;
selectively activating the cardiac therapy circuit and peripheral therapy circuit when the presence of the cardiac signal is detected on the first connection terminal or the second connection terminal; and
selectively inhibiting the cardiac therapy circuit and peripheral therapy circuit when the presence of a cardiac signal is not detected on the first connection terminal or the second connection terminal.