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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8180450 | Multi-chamber ventricular automatic capture method and apparatus for minimizing true and blanking period induced ventricular undersensing An implantable cardiac stimulation device and associated method perform a true or blanking period ventricular undersensing detection algorithm in response to ventricular loss of capture not associated with fusion or a change in capture threshold. The test identifies... | 05/15/2012 |
| 8170671 | Method and system for overdriving a heart chamber during a threshold search according to an AV delay An implantable medical device includes a lead, a pulse generator, an autothreshold module and a control module. The lead includes electrodes positioned within a heart. At least one of the electrodes senses cardiac signals. The pulse generator delivers a stimulus pul... | 05/01/2012 |
| 8145311 | Systems and methods for determining optimal electrode pairs for use in biventricular pacing using multi-pole ventricular leads Techniques are provided for use by implantable medical devices for determining a preferred or optimal pair of electrodes for delivering biventricular pacing therapy. In one example, the implantable device is equipped with a right ventricular (RV) lead and a multi-po... | 03/27/2012 |
| 8135468 | Systems and methods for estimating left atrial pressure (LAP) in patients with acute mitral valve regurgitation for use by an implantable medical device Various techniques are provided for use with an implantable medical device for estimating cardiac pressure within a patient based on admittance (or related electrical values such as impedance or conductance) that takes into account the presence of acute MR within th... | 03/13/2012 |
| 8131366 | Biventricular heart stimulator and method of controlling a biventricular heart stimulator In a biventricular heart stimulator and a method for controlling such a biventricular heart stimulator, successive stimulation pulses are delivered to the ventricles of a heart such that stimulation pulses in a single heartbeat cycle are respectively first delivered... | 03/06/2012 |
| 8121688 | Method and system for automatically switching between modes of an implantable medical device An implantable medical device includes a lead, a pulse generator, an autocapture module, an autothreshold module, a fusion detection module, and a control module. The lead includes electrodes configured to be positioned within a heart. At least one of the electrodes... | 02/21/2012 |
| 8116871 | Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes Cardiac monitoring and/or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed for automatic capture verification using cardiac activation sequence information. Devices ... | 02/14/2012 |
| 8116870 | Capture detection for multi-chamber pacing Multi-chamber pacing may result in capture of one chamber, capture of multiple chambers, fusion, or non-capture. Approaches for detecting various capture conditions during multi-chamber pacing are described. Pacing pulses are delivered to left and right heart chambe... | 02/14/2012 |
| 8065005 | Tissue characterization using intracardiac impedances with an implantable lead system An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissue... | 11/22/2011 |
| 8055342 | Method and apparatus for adjusting the sensing threshold of a cardiac rhythm management device A method and apparatus for automatically adjusting the sensing threshold of cardiac rhythm management devices. The invention is particularly suited for implementation in devices such as implantable cardiac pacemakers and implantable cardioverter/defibrillators. A me... | 11/08/2011 |
| 8014866 | Variable voltage compliance for current output generator A system for providing stimulation current in implantable medical devices is provided. One aspect of this disclosure relates to an apparatus including a power supply terminal adapted to be connected to a power supply. The apparatus embodiment also includes circuitry... | 09/06/2011 |
| 8010196 | Tissue characterization using intracardiac impedances with an implantable lead system An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissue... | 08/30/2011 |
| 8000790 | Device for adjusting the sensitivity level of an implantable medical device An implantable cardiac stimulation device has an atrial detector that detects atrial events of a patient's heart, and a memory in which sequences of IEGM signals are stored, having a predetermined length, and an analyzing unit that analyzes the sequences to determin... | 08/16/2011 |
| 7979124 | Method and system for detecting capture using a coronary vein electrode A method and device provide for determining capture in multiple chambers of a patient's heart using an electrode inserted into a coronary vein of the patient's heart. The coronary vein electrode is positioned adjacent to multiple heart chambers and is responsive to ... | 07/12/2011 |
| 7979125 | Implantable biventricular heart stimulating device and method for performing a capture threshold search In an implantable biventricular heart stimulating device, and a biventricular heart stimulating method, wherein operation takes place normally with a time VV between a pacing pulse delivered, or inhibited, by a first ventricular pacing circuit and a pacing pulse del... | 07/12/2011 |
| 7970473 | Systems and methods for detection of VT and VF from remote sensing electrodes Methods and systems are provided for performing ventricular arrhythmia monitoring using at least two sensing channels that are each associated with different sensing vectors, for example by different pairs of extracardiac remote sensing electrodes. Myopotential asso... | 06/28/2011 |
| 7957803 | Atrial capture verification Methods and systems for classifying cardiac responses to pacing stimulation and/or preventing retrograde cardiac conduction are described. Following delivery of a pacing pulse to an atrium of the patient's heart during a cardiac cycle, the system senses in the atriu... | 06/07/2011 |
| 7945326 | Tissue characterization using intracardiac impedances with an implantable lead system An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissue... | 05/17/2011 |
| 7941219 | Capture detection based on propagated depolarization from a remote 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 pacing delay and an intersite conduction delay associated with first ... | 05/10/2011 |
| 7937150 | Lead-carried proximal electrode for quadripolar transthoracic impedance monitoring An implantable medical device (IMD) provides quadripolar transthoracic impedance measurement capability by forming at least one of the two electrodes associated with the canister of the device on a lead proximate the canister. ... | 05/03/2011 |
| 7930029 | Template initialization for evoked response detection Methods and devices for initializing templates for evoked response detection from pacing stimulation are described. A method of generating templates characterizing a cardiac response to pacing involves determining values associated with signal features for each of a... | 04/19/2011 |
| 7925349 | Tissue characterization using intracardiac impedances with an implantable lead system An implantable system acquires intracardiac impedance with an implantable lead system. In one implementation, the system generates frequency-rich, low energy, multi-phasic waveforms that provide a net-zero charge and a net-zero voltage. When applied to bodily tissue... | 04/12/2011 |
| 7920920 | Algorithm for capture detection An exemplary method includes receiving a signal of cardiac electrical activity after delivery of electrical energy to the heart, rectifying the signal to produce a rectified signal, comparing the rectified signal to the signal and, based at least in part on the comp... | 04/05/2011 |
| 7908006 | Cardiac pacing response classification using an adaptable classification interval Methods and systems involve the formation of a classification interval used for sensing a cardiac signal following a pacing pulse to determine a cardiac response to pacing. One or more cardiac signals associated with a type of cardiac pacing response are sensed. The... | 03/15/2011 |
| 7873415 | Cardiac rhythm management system and method A system and method for cardiac rhythm management, which includes an electrode system having at least one electrode and control circuitry coupled to the electrode system from which a first cardiac signal is sensed. The control circuitry includes a pulse circuit to p... | 01/18/2011 |
| 7856271 | Detecting atrial evoked response A method for sensing cardiac activity in an atrium of a patient's heart includes delivering a pulse to the atrium using an electrode configuration that includes at least a cathode electrode; sensing cardiac activity in the atrium using a unipolar electrode configura... | 12/21/2010 |
| 7818059 | Atrial capture management in minimal ventricular pacing system and method Embodiments of the invention provide systems and methods for an implantable medical device comprising means for selecting between an atrial chamber reset (ACR) test and an atrioventricular conduction (AVC) test to provide atrial capture management and means for swit... | 10/19/2010 |
| 7813799 | Adaptive safety pacing Methods and systems involve adjusting an energy used for safety pacing based on the capture threshold. The safety pacing energy may be adjusted prior to a capture threshold test. During the capture threshold test, backup safety paces are delivered using the adjusted... | 10/12/2010 |
| 7801610 | Methods and systems for management of atrial retrograde conduction and pacemaker mediated tachyarrhythmia Methods and systems for classifying cardiac responses to pacing stimulation and managing retrograde conduction and pacemaker mediated tachyarrhythmia are described. An atrial pacing pulse and a ventricular pacing pulse are delivered during a paced cardiac cycle. A p... | 09/21/2010 |
| 7787952 | Detection of function of implanted medical devices A monitoring system and method for monitoring signals from an implantable medical device are disclosed. The monitoring system and method include a monitor configured to detect a radio frequency artifact from the signals of the implantable medical device and circuitr... | 08/31/2010 |
| 7783355 | Dynamic adjustment of capture management “safety margin” A cardiac stimulation system and associated capture management method are provided in which a safety factor, used in setting pacing pulse output energy, is automatically adjusted in response to the detection of indicators of a likely increase in pacing threshold. Th... | 08/24/2010 |
| 7774064 | Cardiac response classification using retriggerable classification windows Methods and devices for classifying a cardiac response to pacing involve establishing a retriggerable cardiac response classification window. A first cardiac response classification window is established subsequent to delivery of a pacing pulse. A cardiac signal fol... | 08/10/2010 |
| 7774065 | Apparatus and method for testing and adjusting a bipolar stimulation configuration A system and method for measuring the capture threshold of a bipolar lead in order to determine an appropriate value for the stimulus pulse energy to be used with the lead by a cardiac rhythm management device. An appropriate bipolar stimulating configuration can al... | 08/10/2010 |
| 7765004 | Methods and systems for managing fusion and noise in cardiac pacing response classification Methods and systems for detecting noise in cardiac pacing response classification processes involve determining that a cardiac response classification is possibly erroneous if unexpected signal content is detected. The unexpected signal content may comprise signal p... | 07/27/2010 |
| 7761162 | Capture verification with intrinsic response discrimination Approaches to automatically classifying a cardiac response to pacing involve discriminating between a captured response and non-capture with intrinsic activation. A capture detection system senses for morphological characteristics of a cardiac signal associated with... | 07/20/2010 |
| 7761163 | Atrial heart stimulator apparatus and method The invention relates to heart stimulators and implantable atrial pacemakers which utilize a rhythm based atrial capture threshold test wherein in a ventricle based DDI mode a predetermined number of ventricle started atrial and ventricular escape intervals are trig... | 07/20/2010 |
| 7738959 | Method and apparatus for performing stimulation threshold searches Undersensing of an evoked response during an automatically initiated search of the stimulation threshold in a stimulation channel of an IMD, e.g., the pacing threshold in a pacing channel of a pacing system, is minimized by repeating the search using the sense ampli... | 06/15/2010 |
| 7738960 | System and method for remote pacing threshold assessment A cardiac rhythm management system includes an implantable medical device capable of delivering cardiac therapy and sensing an EGM. The implantable medical device undergoes threshold testing and transmits testing data to a computer via a remote monitor. ... | 06/15/2010 |
| 7725189 | Method, device, and system concerning heart stimulation In a cardiac stimulation method, device and system, a capture verification condition is determined. For this purpose, a number of pacing pulses are delivered to a heart chamber and signals are sensed within a time window following each pacing pulse. The sensed signa... | 05/25/2010 |
| 7711425 | Defibrillation threshold prediction methods and systems A nondefibrillating and nonfibrillation-inducing energy is delivered at a first internal thoracic location. A first resulting electrical signal is detected at a second internal thoracic location in or near a target region of a heart. A first defibrillation threshold... | 05/04/2010 |
