Patent application number | Description | Published |
20100274146 | DYNAMIC SELECTION OF ALGORITHMS FOR ARRHYTHMIA DETECTION - An apparatus comprises a first implantable sensor produces a first electrical sensor signal representative of cardiac depolarization events of a heart of a subject, a second implantable sensor that produces a second electrical sensor signal representative of hemodynamic function of the heart, a signal analyzer circuit, and an arrhythmia discrimination circuit. The signal analyzer circuit detects an arrhythmic event from the first sensor signal and calculates hemodynamic stability in response to the arrhythmic event detection using the second sensor signal. The arrhythmia discrimination circuit selects, according to a calculated hemodynamic stability produced by the signal analyzer circuit, an arrhythmia discrimination algorithm from among a plurality of candidate arrhythmia discrimination algorithms that are implementable by the arrhythmia discrimination circuit, classifies the detected arrhythmia using the selected arrhythmia discrimination algorithm, and provides the arrhythmia classification to a user or process. | 10-28-2010 |
20100280841 | Adjudication of Arrhythmia Episode Data Systems and Methods - A system and method for automatically adjudicating arrhythmia episode information is described, and includes an episode database having episode data regarding a plurality of different arrhythmia episodes and an adjudication processor configured to output characterization data characterizing the input episode data. The characterization data includes an arrhythmia classification. The system further includes an episode processor configured to process the characterization data and episode data, provide at least one report on the characterization data related to a plurality of the different arrhythmia episodes, and provide at least one programming recommendation or at least one alert. | 11-04-2010 |
20110087301 | IMPLANTABLE DEVICE WITH HEMODYNAMIC SUPPORT OR RESUSCITATION THERAPY - An apparatus comprises an implantable sensor, a stimulation circuit, and a controller. The implantable sensor is configured to provide a sensor signal representative of hemodynamic function of a subject. The stimulation circuit is configured to provide electrical simulation energy to an implantable electrode. The controller is communicatively coupled to the stimulation circuit and the implantable sensor and includes a hemodynamic monitor module. The hemodynamic monitor module is configured to detect an episode of reduced hemodynamic capacity in a subject using the sensor signal. In response to the detected episode, the controller is configured to initiate delivery of the electrical stimulation energy to artificially induce at least one of deep ventilation or rapid ventilation in the subject. The hemodynamic monitor module is configured to obtain a measure of hemodynamic performance after delivery of the electrical stimulation energy. | 04-14-2011 |
20110093026 | METHOD AND APPARATUS FOR CARDIORENAL ELECTRICAL STIMULATION - An implantable cardiorenal stimulator delivers cardiorenal stimulation in response to detection of decompensation associated with heart failure. The cardiorenal stimulation includes delivering renal stimulation pulses to promote diuresis and/or natriuresis and delivering cardiac stimulation pulses to enhance the diuretic and/or natriuretic effects of the renal stimulation pulses. | 04-21-2011 |
20110178565 | AUTOMATIC MECHANICAL ALTERNANS DETECTION - This document discusses, among other things, a cardiac mechanical alternans (MA) detector circuit. In an example, the mechanical alternans detector circuit is configured to determine a mechanical alternans (MA) condition. In an example, the MA detector circuit can include a physiologic impedance input configured to receive physiologic information indicative of mechanical alternans. In an example, the MA detector circuit can include an intravascular pressure input configured to receive physiologic information indicative of mechanical alternans. | 07-21-2011 |
20110196439 | DETECTING HEMODYNAMIC STABILITY DURING ARRHYTHMIA USING THE CHANGES IN ATRIAL ACTIVATION - Detected changes in atrial activation can be used to discriminate between hemodynamically stable and hemodynamically unstable tachyarrhythmias. | 08-11-2011 |
20110201945 | HEMODYNAMIC STABILITY DETECTION DURING ARRHYTHMIA USING RESPIRATION SENSOR - Detected changes in respiration parameters, either alone or in conjunction with other physiological signals, can be used to discriminate between hemodynamically stable and hemodynamically unstable tachyarrhythmias. | 08-18-2011 |
20130046196 | SYSTEMS AND METHODS FOR SETTING PARAMETERS OF IMPLANTABLE MEDICAL DEVICES USING PREDICTIVE MARKER DATA - Embodiments of the invention are related to systems and methods for setting parameters of implantable medical devices, amongst other things. In an embodiment, the invention includes a method for programming an implantable medical device including sensing concentrations of a predictive marker such as ET-1 in a patient, selecting programming parameter values based on the sensed concentrations of the predictive marker, and implementing the selected programming parameter values. In an embodiment the invention includes a method for detecting arrhythmia in a patient including sensing concentrations of the predictive marker in a patient, selecting a level of stringency to be used in an arrhythmia detection module based on the sensed concentrations of the predictive marker, sensing electrical signals in the patient, and evaluating the sensed electrical signals for indicia of an arrhythmia using the arrhythmia detection module. Other embodiments are also included herein. | 02-21-2013 |