An implantable pacemaker provides three types of hysteresis for use in dual chamber and/or atrial tracking modes, such as VDI, VDD, DDI, DDD, VDIR, VDDR, DDIR or DDDR. The pacemaker defines a basic atrial escape interval (AEI) that defines the maximum time between a ventricular event and a subsequent...http://www.google.es/patents/US5237992?utm_source=gb-gplus-sharePatente US5237992 - Implantable pacemaker providing hysteresis in dual-chamber modes
Implantable pacemaker providing hysteresis in dual-chamber modes
