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US20060178589 |
Accelerometer-based monitoring of the frequency dynamics of the isovolumic contraction phase and pathologic cardiac vibrations
Methods and systems are disclosed that characterize cardiac function using an acceleration sensor to acquire and analyze the frequency dynamics associated with the isovolumic contraction phase... |
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US20110319772 |
LEAD MOTION SENSING VIA CABLE MICROPHONICS
An ambulatory medical device can include an excitation circuit configured to be electrically coupled to an implantable lead, the excitation circuit configured to provide a non-tissue-stimulating... |
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US20140214110 |
SYSTEMS AND METHODS TO MONITOR AND TREAT HEART FAILURE CONDITIONS
An implantable device monitors and treats heart failure, pulmonary edema, and hemodynamic conditions and in some cases applies therapy. In one implementation, the implantable device applies a... |
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US20130324825 |
Leadless Pacemaker with Multiple Electrodes
A leadless pacemaker for pacing a heart of a human is provided, which can include any number of features. In some embodiments, the pacemaker can include a hermetic housing, a first electrode... |
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US20060235480 |
Method and apparatus for automatically programming CRT devices
External or internal monitoring equipment is used to automatically determine optimal programming parameters for a CRT based on externally or internally derived measurements of cardiac performance,... |
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US20090259272 |
BUNDLE OF HIS STIMULATION SYSTEM
A system for therapeutically stimulating a His bundle includes an implantable pulse generator and a multi-polar medical electrical lead. The generator is configured for subcutaneous implantation... |
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US20060025828 |
Impedance measurement for an implantable device
A method and an apparatus for determining an impedance experienced by a lead associated with the implantable device. A substantially constant current signal is provided through a first terminal... |
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US20050004612 |
Form analysis to detect evoked response
Method and device for determining capture status of a heart chamber that receives a pulse from an implantable pulse generator (IPG). Signal processing can be used to improve the reliability of... |
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US20140277246 |
MODULATE PACING RATE TO INCREASE THE PERCENTAGE OF EFFECTIVE VENTRICULAR CAPTURE DURING ATRIAL FIBRILLATION
The present disclosure pertains to cardiac pacing methods and systems, and, more particularly, to cardiac resynchronization therapy (CRT). In particular, the present disclosure pertains to... |
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US20130053918 |
LEFT-VENTRICULAR PACING SITE SELECTION GUIDED BY ELECTROGRAM MORPHOLOGY ANALYSIS
A medical device system and associated method classify candidate pacing electrode sites for delivering pacing pulses to a patient's heart. A control unit is operatively coupled with a plurality of... |
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US20090299421 |
EVALUATION OF IMPLANTABLE MEDICAL DEVICE SENSING INTEGRITY BASED ON EVOKED SIGNALS
The disclosure describes techniques for evaluating sensing integrity of an implantable medical device (IMD) based on sensing of evoked signals. Sensing integrity may provide an indication of... |
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US20120303082 |
Adjusting Cardiac Pacing Response Sensing Intervals
Discrimination between different types of possible cardiac pacing responses may depend on the timing of expected features that are sensed within a temporal framework. The temporal framework may... |
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US20120078320 |
PRIORITIZED PROGRAMMING OF MULTI-ELECTRODE PACING LEADS
Various techniques are disclosed for facilitating selection of at least one vector from among a plurality of vectors for pacing a chamber of a heart. In one example, a method includes presenting,... |
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US20120191153 |
DIAGNOSIS OF LEAD FRACTURE AND CONNECTION PROBLEMS
Techniques for diagnosing lead fractures and lead connection problems are described. One or more medical leads may be coupled to an implantable medical device (IMD) to position electrodes or other... |
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US20080195169 |
Low Power Standby Mode Monitor
An electrophysiological device comprises a lead-off detector in the form of an electrical impedance detector and further a path from a supply voltage to a second voltage. The path comprises... |
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US20120095521 |
DETECTION OF HEART RHYTHM USING AN ACCELEROMETER
Various techniques for using an accelerometer to detect cardiac contractions are described. One example method described includes filtering a signal received by an electrical sensing channel of an... |
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US20120123496 |
CONNECTIVITY DETECTION AND TYPE IDENTIFICATION OF AN IMPLANTED LEAD FOR AN IMPLANTABLE MEDICAL DEVICE
An implantable medical device (IMD) configured to detect lead connectivity as well as to identify lead type. Detecting lead connectivity provides, among other information, confirmation that the... |
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US20050096708 |
Atrial antitachycardia pacing management
A system and method provides for managing atrial ATP therapy in response to possible atrial lead dislodgment. An impedance of an atrial lead is measured for a particular patient. The measured... |
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US20110098765 |
DETECTING LEAD RELATED CONDITION DURING DELIVERY OF THERAPEUTIC ELECTRICAL SIGNALS
In general, the disclosure describes techniques for detecting lead related conditions, such as lead fractures or other lead integrity issues. As described herein, lead related conditions are... |
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US20100042176 |
TEMPORAL-BASED CARDIAC CAPTURE THRESHOLD DETECTION
A cardiac capture threshold may be determined using a test pulse and a backup pulse. Here, delivery of a test pulse is followed almost immediately by a non-conditional backup pulse of sufficient... |
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US20130046356 |
HIGH PHRENIC, LOW CAPTURE THRESHOLD PACING DEVICES AND METHODS
Methods of highly selective cardiac tissue stimulation and devices for practicing the same, e.g., implantable segmented electrode devices, are provided. The methods and devices provide a... |
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US20120109001 |
SENSING IN AN IMPLANTABLE DEVICE IN THE PRESENCE OF AN INTERFERING SIGNAL USING LEAD IMPEDANCE MEASUREMENTS
A device to which an implantable lead is coupled may be configured to perform one or more impedance measurements subsequent to a sensed physiological event to determine whether the sensed... |
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US20050222632 |
Device and method for the treatment of cardiac disorders
The present invention shows the use of a conductive basket or mesh electrode to actively treat or passively extinguish cardiac arrhythmias. |
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US20110054560 |
PACING, SENSING AND OTHER PARAMETER MAPS BASED ON LOCALIZATION SYSTEM DATA
An exemplary method generates a map of a pacing parameter, a sensing parameter or one or more other parameters based in part on location information acquired using a localization system configured... |
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US20140107723 |
SINGLE-CHAMBER LEADLESS INTRA-CARDIAC MEDICAL DEVICE WITH DUAL-CHAMBER FUNCTIONALITY
A leadless implantable medical device (LIMD) comprises a housing configured to be implanted entirely within a single local ventricular chamber of the heart near a local apex region. A base on the... |
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US20120109235 |
CAPTURE DETECTION IN RESPONSE TO LEAD RELATED CONDITIONS
Various techniques for detecting cardiac capture in response to a detected lead related condition are described. One example method described includes delivering a pacing therapy to a heart of a... |
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US20110224751 |
CAPTURE DETECTION BASED ON PROPAGATED DEPOLARIZATION FROM A PACING SITE
A methods and devices for capture detection are based on sensing a propagated depolarization from a contralateral cardiac chamber. An intersite sensing interval is determined based on an intersite... |
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US20150134023 |
METHOD AND SYSTEM FOR SELECTING LV PACING SITE IN A MULTIPOLAR LV LEAD
A method and system for selecting at least one left ventricular (LV) pacing site for an implantable medical device equipped for cardiac stimulus pacing using a multi-pole LV lead are provided. The... |
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US20120303085 |
METHODS AND APAPRATUS 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... |
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US20090299431 |
High Voltage Confirmation System Utilizing Impedance Data
Systems and methods for providing high voltage confirmation are disclosed. In various embodiments, impedance data can be used as a basis for determining the operation of a high voltage... |
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US20140121721 |
APPARATUS AND METHOD FOR PLACEMENT OF LEAD FOR CARDIAC RESYNCHRONIZATION THERAPY
An apparatus and method for placement of a lead for cardiac resynchronization therapy in a cardiovascular system of patient. A conductive tool is advanced along at least one branch of the... |
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US20100121404 |
IMPLANTABLE HEART STIMULATING DEVICE
Implantable heart stimulating device has at least one electrode lead provided with at least two electrodes adapted to be arranged for electrical stimulation of a heart, a pulse generating that... |
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US20100152795 |
IDENTIFICATION OF DYSYNCHRONY USING INTRACARDIAC ELECTROGRAM DATA
Implantable stimulation devices can provide intracardiac electrograms (EGMs) and impedance measurements to detect changes in electrical, mechanical, and electromechanical activation of the heart.... |
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US20120101544 |
NON-PROGRAMMING ACTIVATION DEVICE FOR SWITCHING MODES OF AN IMPLANTABLE MEDICAL DEVICE AND METHODS FOR SAME
When a medical procedure is performed on a patient in whom an implantable medical device is implanted, the medical procedure may have undesired effects on the medical device, such as triggering a... |
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US20140316481 |
PROGRAMMER FOR CARDIAC IMPLANTABLE MEDICAL DEVICES, HAVING AN ACCELERATED TEST MODE OF THE PARAMETERS
A programmer for cardiac implantable medical devices, including an accelerated test mode of the operating parameters. The programmer includes a user interface that is used to define the tests to... |
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US20170120059 |
MULTISITE PACING CAPTURE DETERMINATION BASED ON EVOKED RESPONSE
An apparatus comprises a stimulus circuit, a cardiac signal sensing circuit, and a control circuit. The stimulus circuit provides electrical pulse energy to a first pacing channel that includes a... |
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US20100198295 |
PERFORMING EXTENDED CAPTURE DETECTION TEST AFTER DETECTING INADEQUATE CAPTURE
Techniques are described for performing an extended capture detection test after detecting inadequate capture during a first capture detection test. An example system includes an implantable... |
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US20090299433 |
PACING SYSTEM ANALYZER HAVING THREE SENSING AND PACING CHANNELS
A pacing system analyzer (PSA) having three or more individually controllable sensing and pacing channels provides for testing and measurement during an operation for implanting a pacemaker having... |
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US20150165214 |
METHOD AND APPARATUS FOR MONITORING OF PATIENT MEDICATION COMPLIANCE
A method and medical device for monitoring patient medication compliance having a plurality of electrodes to deliver a pacing therapy, and a processor configured to determine a pacing threshold in... |
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US20080172099 |
Medical Implant For Evoked Response Detection Having an Adaptive Detection Time Window
A medical implant has a stimulation pulse generator and an evoked response detector that senses an IEGM signal in an evoked response detection time window following delivery of a stimulation... |