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| Number | Title | Issue Date |
| 8190258 | Lead condition assessment for an implantable medical device A method, system, and apparatus for performing a lead condition assessment and/or a lead orientation determination associated with an implantable medical device (IMD). A first impedance is determined. The first impedance relates to the impedance relative to a first ... | 05/29/2012 |
| 8185203 | Vector configuration detection and corrective response systems and methods In one aspect a system includes an external communication device configured to interrogate a pulse generator, an external programmer device communicatively coupled to the external communication device; the external programmer device configured to receive a listing o... | 05/22/2012 |
| 8185202 | Implantable cardiac device for reduced phrenic nerve stimulation Methods and devices for reducing phrenic nerve stimulation of cardiac pacing systems involve delivering a pacing pulse to a ventricle of a heart. A transthoracic impedance signal is sensed, and a deviation in the signal resulting from the pacing pulse may be used to... | 05/22/2012 |
| 8175708 | System and method for adjusting automatic sensitivity control parameters based on intracardiac electrogram signals Systems and methods are provided for use by an implantable medical device capable of automatically adjusting the sensitivity with which electrical cardiac signals are sensed within a patient, i.e. a device equipped with Automatic Sensitivity Control (ASC.) In a firs... | 05/08/2012 |
| 8170670 | System and method for recovering from transient faults in an implantable medical device A system and method is disclosed for system fault recovery by an implantable medical device which employs a global fault response. The system enables the device to consistently recover from transient faults while maintaining a history of the reason for the device fa... | 05/01/2012 |
| 8155741 | Retrograde atrial sensing for identifying sub-threshold atrial pacing Atrial capture threshold testing is performed in accordance with an atrial capture threshold testing schedule. Monitoring for retrograde P-waves occurs at least during times other than times during which scheduled atrial capture threshold testing is performed. In re... | 04/10/2012 |
| 8145310 | Non-captured intrinsic discrimination in cardiac pacing response classification Cardiac devices and methods discriminate non-captured intrinsic beats during evoked response detection and classification by comparing the features of a post-pace cardiac signal with expected features associated with a non-captured response with intrinsic activation... | 03/27/2012 |
| 8140159 | Safe-mode operation of an implantable medical device A method, system, and apparatus for implementing a safe mode operation of an implantable medical system using impedance adjustment(s) are provided. A first impedance is provided to a lead. An indication of a possibility of a coupled energy is received. Based upon sa... | 03/20/2012 |
| 8135467 | Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation Bio-impedance may be used for navigation systems to chronically implant pacing and defibrillation leads in the heart using a non-fluoroscopic position sensing unit (PSU). Such a system requires that a conductive material, such as a retractable helical tip-electrode,... | 03/13/2012 |
| 8131365 | Event-based battery monitor for implantable devices A remaining charge capacity of a battery having an initial charge capacity is monitored. The battery powers a remote implantable medical device (IMD) that includes an active state, during which the remote IMD performs at least one function, and an inactive state, du... | 03/06/2012 |
| 8126555 | Bidirectional communications between a generator and sensors or actuators of a lead for an active implantable medical device An active implantable medical device including bidirectional communications between a generator and sensors or actuators located at the distal extremity of a lead. A lead (14) is connected at its proximal end to a generator (10) and has at the distal e... | 02/28/2012 |
| 8099166 | Implantable medical device with lead failure detection An implantable heart stimulating device has an ECG sensing unit to receive heart potential signals from sensing electrodes at an electrode lead arranged in connection with a patient's heart. The ECG sensing unit is provided with a programmable make-break threshold. ... | 01/17/2012 |
| 8090445 | System and method for controlling an implantable medical device subject to magnetic field or radio frequency exposure A system for controlling an implantable medical device (e.g., a drug delivery device) susceptible to malfunctioning during exposure to a magnetic field and/or Radio Frequency field (e.g., during a magnetic resonance imaging procedure) and a method for operating the ... | 01/03/2012 |
| 8082036 | Automatic signal amplitude measurement system in the setting of abnormal rhythms A system for automatically evaluating the sensing and detection of physiological processes by an implantable medical device, such as an implantable cardiac stimulation device. The system includes an automatic testing algorithm which iteratively adjusts at least one ... | 12/20/2011 |
| 8078277 | Identification and remediation of oversensed cardiac events using far-field electrograms In general, the disclosure is directed to techniques for identification and remediation of oversensed cardiac events using far-field electrograms (FFEGMs). Identification of oversensed cardiac events can be used in an ICD to prevent ventricular fibrillation (VF) det... | 12/13/2011 |
| 8065004 | Method and apparatus for automatic self-test of medical device A method and apparatus are disclosed for automatic self-test of a medical device. The method includes detecting whether the medical device has reached an automatic self-test time set in the last time, when the medical device is in a power-off state. If the result of... | 11/22/2011 |
| 8060204 | Low power digital design for deep submicron technology An apparatus comprises an implantable medical device that includes a storage circuit. The storage circuit includes a first stage circuit configured to receive an input signal and to invert and store information about a data bit received in the input signal, a second... | 11/15/2011 |
| 8060205 | Cardiac rhythm management system with user interface for threshold test An implantable cardiac rhythm management system includes a user interface, such as an external programmer, for performing therapy energy threshold tests. The threshold tests allow the caregiver to determine the threshold energy at which paces capture the heart, i.e.... | 11/15/2011 |
| 8050762 | Method and system for detecting capture with cancellation of pacing artifact Methods and systems for detecting capture using pacing artifact cancellation are described. One or more pacing artifact templates are provided and a cardiac signal is sensed in a cardiac verification window. Each of the pacing artifact templates may characterize the... | 11/01/2011 |
| 8046071 | Pacemaker passive measurement testing system A system and method for passively testing a cardiac pacemaker in which sensing signal amplitudes and lead impedance values are measured and stored while the pacemaker is functioning in its programmed mode. The amplitude and impedance data may be gotten and stored pe... | 10/25/2011 |
| 8027725 | Capture verification using an evoked response reference A method and system for verifying capture in the heart involves the use of pacing artifact templates. One or more pacing artifact templates characterizing a post pace artifact signal associated with a particular pace voltage or range of voltages are provided. A paci... | 09/27/2011 |
| 7991473 | System and method for graphically configuring leads Systems and methods are provided for graphically configuring leads for a medical device. According to one aspect, the system generally comprises a medical device and a processing device, such as a programmer or computer, adapted to be in communication with the medic... | 08/02/2011 |
| 7991472 | Systems and methods for diagnosing an implantable device A method for diagnosing an implantable cardiac device including a plurality of implanted leads may include: monitoring a plurality of parameters associated with the plurality of implanted leads; detecting a change in one of the parameters; evaluating at least one of... | 08/02/2011 |
| 7970472 | System and method of detecting and diagnosing pacing system malfunctions A method of diagnosing a malfunction of a pacing system includes the steps of receiving a biopotential signal, detecting a pacing system malfunction, detecting a cause of the malfunction, and displaying the detected malfunction and detected cause of the malfunction.... | 06/28/2011 |
| 7970471 | Capture verification for cardiac resynchronization pacing optimization A system and method for automatically selecting among a plurality of pacing modes based upon capture detection. Patients suffering from heart failure may be optimally treated with different resynchronization pacing modes or configurations. By detecting whether captu... | 06/28/2011 |
| 7966068 | Detecting a lead fracture in an active implantable medical device for cardiac pacing resynchronization cardioversion and/or defibrillation Detecting a lead fracture in an active implantable medical device for pacing, resynchronization and/or defibrillation of the heart. This device senses the heart rhythm through an endocardial lead comprising at least one endocardial electrode collecting the depolariz... | 06/21/2011 |
| 7953489 | Multiple electrode vectors for implantable cardiac treatment devices The implantable cardiac treatment system of the present invention is capable of choosing the most appropriate electrode vector to sense within a particular patient. In certain embodiments, the implantable cardiac treatment system determines the most appropriate elec... | 05/31/2011 |
| 7953488 | Pre-qualification of an alternate sensing configuration Multiple sensing configurations may be qualified based on one induced tachyarrhythmia, e.g., ventricular fibrillation, or other qualification event during an implantation procedure. Each sensing configuration comprises a different combination of two or more electrod... | 05/31/2011 |
| 7930028 | Implantable cardiac device with a shock lead An implantable cardiac device includes a housing (2), pulse generator (7) therein to generate physiologically effective electrical pulses, a shock lead (3), externally of the housing (2), connectable to the pulse generator (7) and ... | 04/19/2011 |
| 7904160 | 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... | 03/08/2011 |
| 7899536 | Morphology discrimination for capture assessment An exemplary method includes delivering a pacing pulse to a heart, acquiring a cardiac electrogram, comparing the cardiac electrogram to a template and, based on the comparing, deciding if the pacing pulse caused an evoked response. In such a method, the comparing m... | 03/01/2011 |
| 7899535 | Automatic electrode integrity management systems and methods This document discusses, among other things, systems and methods for automatic electrode integrity management. Interelectrode impedance is measured for various electrode combinations of an implantable cardiac function management device. The impedance data is process... | 03/01/2011 |
| 7881794 | Method and apparatus for determining the coronary sinus vein branch accessed by a coronary sinus lead Systems and methods for determining the coronary sinus vein branch location of a left ventricle electrode are disclosed. The systems and methods involve detecting the occurrence of electrical events within the patient's heart including sensing one or more of the ele... | 02/01/2011 |
| 7881793 | System and method for ventricular pacing with progressive conduction check interval A pacing protocol is provided that reduces or minimizes ventricular pacing in favor of intrinsic conduction. When operating in a mode that provides ventricular pacing, a series of conduction checks are performed to determine if intrinsic conduction has returned. The... | 02/01/2011 |
| 7844337 | System and method for recovery from memory errors in a medical device A system comprising an implantable medical device that comprises at least one electrical input to receive sensed electrical activity of a heart of a patient, a memory, and a controller circuit. The controller circuit is coupled to the electrical input and memory and... | 11/30/2010 |
| 7831303 | Cardiac pacing apparatus and method for continuous capture management An implantable cardiac stimulation system and method having continuous capture management capabilities are provided. Continuous capture management is realized by continuously monitoring for secondary effects of loss of capture, thereby effectively providing continuo... | 11/09/2010 |
| 7831304 | Method for determining oversensing in an implantable device An implantable medical device system and method detect oversensing of cardiac signals. A cardiac signal including first events and second events is acquired. Cardiac events are sensed in response to the cardiac signal crossing a first threshold. A filtered cardiac s... | 11/09/2010 |
| 7822475 | Method and apparatus for reducing far-field interchamber interference in an implanted medical device An implantable medical device comprises at least two sensing channels for receiving sensed first and second location electrical signals originating from two different locations of a heart. A control unit is connected to the sensing channels and is adapted to process... | 10/26/2010 |
| 7797047 | Implantable lead functional status monitor and method An implantable medical device (IMD) includes a lead status monitoring system. The lead status monitoring system employs a method including the steps of: collecting data sets from a lead impedance source, a stimulation threshold source, and at least one additional so... | 09/14/2010 |
| 7792585 | Expedited set-up of multi-electrode lead (MEL) Methods and systems are provided for expediting set-up of a multi-electrode lead (MEL). In accordance with specific embodiments, such an MEL includes N groups of electrodes, with each of the N groups including at least M electrodes, where N≧2 and M is ≧2. Electr... | 09/07/2010 |
