Patent application number | Description | Published |
20100179608 | Treatment Of Heart Failure By Controlled Adjustment Of The Atrioventricular And Interventricular Delays In An Active Implantable Medical Device - An active implantable medical device such as a cardiac prosthesis for the treatment of a heart failure by controlled adjustment of the atrioventricular and interventricular delays. The device provides atrioventricular and/or biventricular stimulation, a sensor delivering at least one hemodynamic parameter correlated with time intervals representative of the succession of the systolic and diastolic phases, and circuits to adjust the AV delay and/or VV delay. The device determines ( | 07-15-2010 |
20110125209 | System and Method For Cardiac Resynchronization Therapy With Optimization of Effort-based Rate-Responsive Pacing - An active implantable medical device for cardiac resynchronization therapy with effort based rate-responsive pacing is described. The device calculates a rate-responsive stimulation frequency based on output signal of an effort sensor between a base frequency (f | 05-26-2011 |
20110251656 | ACTIVE IMPLANTABLE MEDICAL DEVICE FOR VAGAL STIMULATION WITH OPTIMIZATION OF VENTRICULAR FILLING - An active implantable medical device for vagal stimulation with optimization of ventricular filling is disclosed. The device delivers stimulation pulses to the vagal nerve of the patient with an adjustable energy level. The device includes a hemodynamic sensor for measuring hemodynamic parameters of the patient's cardiac cycles and delivering a timing parameter representative of the ventricular filling time. The energy level of the vagal stimulation pulses is adjusted dynamically and repeatedly over several cardiac cycles. The energy level is varied during successive cardiac correlative changes in the filling time (FT | 10-13-2011 |
20120172943 | ACTIVE IMPLANTABLE MEDICAL DEVICE WITH ATRIAL PACING FOR THE TREATMENT OF DIASTOLIC HEART FAILURE - An active implantable medical device with atrial pacing for the treatment of diastolic heart failure. This device comprises circuits and leads for collecting right and left atrial events ( | 07-05-2012 |
20130131747 | IMPLANTABLE DEFIBRILLATOR/CARDIOVERTER MEDICAL DEVICE WITH A DYNAMICALLY ADJUSTABLE THRESHOLD FOR VENTRICULAR DETECTION - Methods, devices, and processor-readable storage media are provided for detecting spontaneous ventricular events in a heart using implantable medical devices. A method in this context includes applying a sensitivity function to collected data to detect occurrence of ventricular events. The sensitivity function is based on an adjustable detection threshold. The method further includes determining whether noise is suspected to be present in the data and, if so, increasing the threshold. The method further includes providing a stimulation pulse to the heart when a ventricular event has not occurred after a predetermined escape interval and, following the stimulation pulse, applying a capture test to detect whether an induced depolarization has occurred. If induced polarization is not detected, the threshold is reduced, while the threshold is maintained if induced polarization is detected. | 05-23-2013 |
20150148859 | ACTIVE IMPLANTABLE MEDICAL DEVICE FOR ATRIAL STIMULATION FOR THE TREATMENT OF HEART FAILURE WITH PRESERVED EJECTION FRACTION - An active implantable medical device includes digital processor circuits configured to sense right and left atrial depolarizations and deliver left atrial stimulation pulses according to a stimulation protocol. The stimulation protocol includes delivering a left atrial stimulation pulse at an inter-atrial coupling interval. The inter-atrial coupling interval is a coupling interval shorter than the sinus rhythm coupling interval, so as to deliver a premature pulse. The protocol further includes delivering a not premature left-atrial stimulation pulse during an immediately subsequent cardiac cycle, at an inter-atrial coupling interval corresponding to the sinus rhythm coupling interval. The protocol also includes assessing the right atrial coupling interval between the right atrial depolarizations and comparing the right atrial coupling interval to the sinus rhythm coupling interval. And finally, modifying an adjustable controlling parameters if necessary according to the result of the comparison. The device has no means for collecting and analyzing the endocardial acceleration. | 05-28-2015 |
20150202445 | ACTIVE IMPLANTABLE MEDICAL DEVICE FOR VAGAL STIMULATION WITH OPTIMIZATION OF VENTRICULAR FILLING - An active implantable medical device for vagal stimulation with optimization of ventricular filling is disclosed. The device delivers stimulation pulses to the vagal nerve of the patient with an adjustable energy level. The device includes a hemodynamic sensor for measuring hemodynamic parameters of the patient's cardiac cycles and delivering a timing parameter representative of the ventricular filling time. The energy level of the vagal stimulation pulses is adjusted dynamically and repeatedly over several cardiac cycles. The energy level is varied during successive cardiac correlative changes in the filling time (FT | 07-23-2015 |