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9042983 Implantable system for flow measurement including charge amplifier  
An implantable medical device lead having a flow measurement sensor mounted thereon is provided with a capsule mounted proximate to the sensor. The capsule is used to house electrical circuitry...
9042984 Methods for promoting intrinsic activation in single chamber implantable cardiac pacing systems  
Cardiac pacing methods for an implantable single chamber pacing system, establish an offset rate for pacing at a predetermined decrement from either a baseline rate (i.e. dictated by a rate...
9037237 Algorithm to modulate atrial-ventricular delay and rate response based on autonomic function  
An implantable medical device and associated method provide atrial pacing and measure an atrial ventricular (AV) delay. An autonomic function index is computed using the AV delay. The autonomic...
9037238 Method for efficient delivery of dual site pacing  
An implantable device and associated method for delivering a multi-site pacing therapy includes electrodes for sensing cardiac signals and delivering cardiac pacing pulses to a first pacing site...
9031647 Guidewire and signal analyzer for pacing site optimization  
Cardiac lead implantation systems, devices, and methods for lead implantation are disclosed. An illustrative cardiac lead implantation system comprises a mapping guidewire including one or more...
9031651 Phrenic nerve stimulation detection  
In an example, a system includes a cardiac pulse generator configured to generate cardiac paces to pace the heart, a sensor configured to sense a physiological signal for use in detecting...
9031650 Closed loop neural stimulation synchronized to cardiac cycles  
Various aspects of the present subject matter relate to a method. According to various method embodiments, cardiac activity is detected, and neural stimulation is synchronized with a reference...
9031646 Automated assessment of atrioventricular and ventriculoatrial conduction  
A method discriminates between ventricular arrhythmia and supraventricular arrhythmia by determining the direction of an electrical signal conducted through the atrioventricular node. An...
9020594 Posture-induced changes to physiological parameters  
Methods and devices for analyzing posture-induced changes to physiological parameters of a patient (e.g., ejection time, heart rate, etc.) to provide an assessment of one or more conditions of the...
9020593 Selection of pacing sites to enhance cardiac performance  
Systems and methods for selection of electrodes and related pacing configuration parameters used to pace a heart chamber are described. A change in the hemodynamic state of a patient is detected....
9014804 Implantable medical device for treating neurological conditions including ECG sensing  
An implantable medical device such as an implantable pulse generator that includes EEG sensing for monitoring and treating neurological conditions, and leadless ECG sensing for monitoring cardiac...
9014806 System and method for performing a capture test based on the analysis of a cardiac vectogram  
Performing a capture test on a stimulated cardiac cycle based on the analysis of a cardiac vectogram using an active medical device including circuits and control logic for delivering electrical...
9008772 Hybrid autothreshold  
An apparatus comprises a control circuit that initiates a normal pacing mode for delivery of electrostimulation energy to the heart chamber. In response to an indication to initiate a threshold...
9008769 Methods and systems for lowering blood pressure through reduction of ventricle filling  
Methods and devices for reducing ventricle filling volume are disclosed. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to reduce ventricle filling volume...
9002452 Electrical therapy for diastolic dysfunction  
Pacing pulses are delivered to one or more cardiac regions to improve diastolic performance in patients having diastolic dysfunction and/or heart failure. A cardiac pacing system executes a pacing...
8996123 Managing electrical stimulation therapy based on variable electrode combinations  
Various programming techniques are described for medical devices that deliver electrical stimulation therapy that may include mapping between discrete electrical stimulation parameters and a...
8996106 Method and device for intermittent occlusion of a vein draining the organ system  
In a method for the intermittent occlusion of a vein draining the organ system, in which the vein is occluded by an occlusion device, the fluid pressure in the occluded vein is continuously...
8996105 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...
8983601 Extravascular neuromodulation to treat heart failure  
Treatment of heart failure in a patient by electrically modulating both the sympathetic and parasympathetic autonomic cardiac nerve fibers that innervate the patient's heart at an extravascular...
8983605 System and method for detecting pulmonary edema based on impedance measured using an implantable medical device during a lead maturation interval  
Techniques are provided for use by implantable medical devices such as cardiac resynchronization therapy (CRT) devices for detecting pulmonary edema based on transthoracic impedance sensed using...
8972007 Variable shortening of AV delay for treatment of cardiac disease  
An implantable pacing device for delivering ventricular pacing may be configured to intermittently and variably reduce the AV delay interval used in an atrial triggered pacing mode in a manner...
8972013 Using physiological sensor data with an implantable medical device  
An implantable medical system includes an implantable medical device (IMD) and an electrode coupleable to the IMD. The electrode is operative to deliver a first electrical signal from the IMD to a...
8965495 Implantable electronic therapy device  
An implantable electronic therapy device, having a therapy unit, a heart rate capturing unit, a contractility determination unit, and an evaluation and control unit. The therapy unit delivers an...
8958876 Determination of phrenic nerve stimulation threshold  
In an example of a method, the method includes testing for phrenic nerve stimulation (PS) threshold. If PS beats are detected at the pacing output level, analyzing the detected PS beats using...
8958873 Method and apparatus for safe and efficient delivery of cardiac stress augmentation pacing  
A cardiac pacing system controls the progression of a cardiac disorder such as heart failure by delivering cardiac stress augmentation pacing to create or augment regional stress in the heart...
8956295 Sleep detection using an adjustable threshold  
Devices and methods for sleep detection involve the use of an adjustable threshold for detecting sleep onset and termination. A method for detecting sleep includes adjusting a sleep threshold...
8951203 Measures of cardiac contractility variability during ischemia  
Systems and methods include obtaining a measure of cardiac contractility. A cardiac contractility variability is determined from the measure of cardiac contractility. Analyzing the cardiac...
8948868 Methods and apparatus for manually suspending intrathoracic impedance fluid status measurements  
The capability to suspend a patient alert relating to a monitored physiologic parameters addresses a need to selectively shut off a patient-alert signal or signals during the time a patient is...
8942804 Mechanism for detecting coronary ischemia  
A system for detecting myocardial ischemia includes an implantable device having one or more leads connected thereto, at least one electrode on a lead of the device, and a microprocessor in the...
8934971 Implantable cardiac stimulation device and method that stabilizes ventricular rate during episodes of atrial fibrillation  
An implantable cardiac stimulation device and method provide electrical stimulation therapy to stabilize the ventricular rate of a heart during episodes of atrial fibrillation. The stimulation...
8929983 Reverse hysteresis and mode switching for intermittent pacing therapy  
Cardioprotective pre-excitation pacing may be applied to stress or de-stress a particular myocardial region delivering of pacing pulses in a manner that causes a dyssynchronous contraction. Such...
8918190 Implantable device for evaluating autonomic cardiovascular drive in a patient suffering from chronic cardiac dysfunction  
An implantable device for evaluating autonomic cardiovascular drive in a patient suffering from chronic cardiac dysfunction is provided. A stimulation therapy lead includes helical electrodes...
8918191 Implantable device for providing electrical stimulation of cervical vagus nerves for treatment of chronic cardiac dysfunction with bounded titration  
An implantable device for providing electrical stimulation of cervical vagus nerves for treatment of chronic cardiac dysfunction with bounded titration is provided. A stimulation therapy lead...
8914108 Method for hemodynamic optimization using plethysmography  
Time delays between a feature of a signal indicative of electrical activity of a patient's heart and a feature of a plethysmograph signal indicative of changes in arterial blood volume are used to...
8914107 Ventilation sensor rate response normalization and calculation  
A cardiac rhythm management (CRM) device can extract ventilation information from thoracic impedance or other information, and adjust a delivery rate of the CRM therapy. A tidal volume of a...
8900140 Multiple vector fluid localization  
A differential or relative measurement between an orthogonal measurement vector and another measurement vector can be used to determine the location where fluid accumulation is occurring or the...
8897874 Biventricular-triggered pacing in the context of multi-site left ventricular pacing  
Biventricular-triggered pacing is a pacing mode that can employ in cardiac resynchronization pacing at elevated heart rates. Described herein are methods and devices for implementing biventricular...
8897873 Flow estimation in a blood pump  
The flow rate of blood out of a blood pump is determined at least in part based on an acceleration of the pump's rotor and on the blood's viscosity. Considering the rotor acceleration when...
8892204 Aortic pacing to control cardiac afterload  
A chronically implanted medical device, connected to a medical electrical lead that includes a sensor, is used to detect cardiac afterload. Electrical stimulation is delivered proximate to aortic...
8886306 Triggered high-output pacing therapy  
A device and method for delivering electrical stimulation to the heart in order to improve cardiac function in heart failure patients. The stimulation is delivered as high-output pacing in which...
8886314 Therapy delivery method and system for implantable medical devices  
The disclosure relates to an apparatus and method for inducing ventricular fibrillation in a patient to facilitate defibrillation threshold testing. The apparatus includes a plurality of output...
8886322 System for stimulating a hypoglossal nerve for controlling the position of a patient's tongue  
A system for controlling a position of a patient's tongue includes attaching at least one electrode to the patient's Hypoglossal nerve and applying an electric signal through the electrode to at...
8886310 System and method for controlling a heart stimulator  
In a system and method for controlling an implantable stimulator capable of producing pacing pulses to be delivered to cardiac tissue, as well as vagal stimulation pulses to be delivered to vagus...
8880171 Cardiac cycle synchronized sampling of impedance signal  
A system comprising implantable device, the implantable medical device including an intrinsic cardiac signal sensor, an impedance measurement circuit configured to apply a specified current to a...
8874210 Apparatus and method for analyzing patient tolerance to a stimulation mode favoring a spontaneous atrioventricular conduction  
An implantable cardiac prosthesis device conducting an analysis of a patient tolerance to a pacing mode favoring the spontaneous atrioventricular conduction is disclosed. The device operates in a...
8868165 Use of cardiogenic impedance waveform morphology to analyze cardiac conditions and to adjust treatment therapy  
In specific embodiments, one or more cardiogenic impedance signal template is stored, where each template has a corresponding morphology. Additionally, one or more cardiogenic impedance signal is...
8868183 Method and apparatus to implement multiple parameter sets in an implantable device  
An implantable cardiac function management device including a programmable controller can be used to include a user-specifiable therapy control parameter set. The therapy control parameter set may...
8868184 System and method for evaluating mechanical cardiac dyssynchrony based on multiple impedance vectors using an implantable medical device  
A set of cardiogenic impedance signals are detected along different sensing vectors passing through the heart of the patient, particularly vectors passing through the ventricular myocardium. A...
8868185 Use of thoracic and extra-thoracic impedance for diagnostic monitoring  
A medical device and associated method for delivery of a cardiac therapy that includes determining a first impedance signal along a thoracic electrode vector extending within a portion of a...
8862229 System and method for monitoring cardiovascular pressure  
A method for modulating one or more functions of an implanted medical device is disclosed. The method includes measuring a cardiovascular pressure of a patient; evaluating the cardiovascular...