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| Number | Title | Issue Date |
| 6018681 | Implantable atrial defibrillator having therapy inhibition responsive to atrial cycle length There is disclosed an atrial defibrillator including a lead system for sensing activity of a heart in or near at least on atrium of the heart, a detector for detecting atrial events from the sensed atrial activity, and a cardioverter for applying cardiove... | 01/25/2000 |
| 5910120 | Method and system for detecting dislodgment of an implanted right atrial endocardial lead A system and method are provided for detecting dislodgment of a right atrial endocardial lead implanted within a heart right atrium wherein the lead includes an electrode. Heart activity of the right atrium of the heart, and heart activity of the right ve... | 06/08/1999 |
| 5827197 | System for detecting atrial fibrillation notwithstanding high and variable ventricular rates There is disclosed an implantable atrial defibrillator for applying cardioverting electrical energy to the atria of a heart when the atria are in need of cardioversion. The atrial defibrillator includes a sense channel adapted to be associated with at lea... | 10/27/1998 |
| 5813999 | Implantable atrial defibrillator providing reduced cardioversion discomfort An implantable atrial cardiovertor applies cardioverting electrical energy to atria of a heart with reduced discomfort to a patient. The cardiovertor includes a storage capacitor having a capacitance and a discharge control for controlling discharge of th... | 09/29/1998 |
| 5814081 | Atrial flutter cardioverter and method An implantable atrial defibrillator includes a lead system having a plurality of electrodes to deliver a cardioverting pulse to atria of a heart, for sensing A waves of the heart, and for sensing R waves of the heart. A first detector detects the A waves ... | 09/29/1998 |
| 5785059 | Method of releasing conductive elements from fibrotic tissue A method is provided for removing an implanted cardiac lead having a lead body and at least one conductive electrode from a mammalian body. The method includes the steps of providing an indifferent electrode, establishing electrical contact between the in... | 07/28/1998 |
| 5766224 | Temporary, post-heart surgery cardioverting and pacing system and lead systems for use therein A post-surgical atrial cardioverting, atrial pacing, and ventricular pacing system and lead system provides for cardioverting the atria, pacing the atria, and/or pacing the ventricles of the heart of a post-surgical heart patient. The system includes a fi... | 06/16/1998 |
| 5697954 | Defibrillation system including an atrial defibrillator and ventricular defibrillation backup An implantable defibrillation system includes a lead system for making electrical contact with a heart, an atrial cardiovertor coupled to the lead system for applying cardioverting electrical energy to that is of the heart, and a ventricular defibrillator... | 12/16/1997 |
| 5683403 | Implantable lead suture sleeve A suture sleeve fixes an implanted cardiac device lead to body tissue beneath the skin of a patient. The suture sleeve includes a base, and suture holes permitting the suture sleeve to be suture to the body tissue. A flexible strap member extends from the... | 11/04/1997 |
| 5676687 | Post atrial cardioversion high rate atrial pacing with gradual rate return An implantable atrial defibrillator includes a cardiovertor for applying cardioverting electrical energy to the atria of a heart when the atria are in need of cardioversion. The defibrillator further includes a pacer for pacing the atria of the heart imme... | 10/14/1997 |
| 5674250 | Atrial defibrillator and method for providing adaptive control of defibrillator output voltage An implantable atrial defibrillator provides adaptive output voltage control. An atrial cardiovertor is responsive to an atrial fibrillation detector for applying a cardioverting voltage having a magnitude to the atria of a heart when the atria are in nee... | 10/07/1997 |
| 5674249 | Atrial defibrillation system having a portable communication device An atrial defibrillation system includes an implantable atrial defibrillator including an atrial fibrillation detector and an atrial cardiovertor, and an external communication device dimensioned to be hand-held and including an RF transmitter for transmi... | 10/07/1997 |
| 5674253 | Cardioversion system with cardioverting energy attenuator A defibrillation system for providing post-cardiac surgery atrial cardioversion includes a lead system having defibrillation electrodes for electrical contact with the heart beneath the skin of a patient and a non-implantable external defibrillator for pr... | 10/07/1997 |
| 5662691 | System and method for implanting an implantable cardiac device A system for use in implanting an implantable cardiac device includes an external device operable to emulate the operation of the implantable cardiac device in accordance with a set of modality and operating parameters. An external programmer includes a t... | 09/02/1997 |
| 5645569 | Post atrial cardioversion atrial pacing and method An implantable atrial defibrillator includes a cardiovertor for applying cardioverting electrical energy to the atria of a heart when the atria are in need of cardioversion. The defibrillator further includes a pacer for pacing the atria of the heart imme... | 07/08/1997 |
| 5628774 | Cardiac lead with composite insulating structure A lead for implantation in a human body exhibits improved combined biodegradation, blood surface compatibility, wear and flexibility characteristics. The lead includes at least one electrode and at least one connector connecting the electrode to a connect... | 05/13/1997 |
| 5620467 | Implantable atrial defibrillator having cardioverting output voltage limiting for simulating larger storage capacitors An implantable atrial defibrillator includes a storage capacitor for storing electrical energy. A switch discharges at least a portion of the stored energy into a patient's heart as a discharge voltage and a charger charges the storage capacitor with the ... | 04/15/1997 |
| 5584864 | Cardioversion synchronization system and method for an atrial defibrillator An implantable atrial defibrillator applies cardioverting electrical energy to the atria of a human heart. The atrial defibrillator includes a first detector for sensing depolarization activation waves at a first area of the heart and producing a first si... | 12/17/1996 |
| 5578063 | Implantable atrial defibrillator and system having multiple channel electrogram telemetry and method A defibrillator system includes an implantable defibrillator and a non-implantable external receiver. The implantable defibrillator includes a first sense channel for generating a first electrogram and a second sense channel for generating a second electr... | 11/26/1996 |
| 5562709 | Atrial defibrillator having both specific and sensitive R wave detection An implantable atrial defibrillator includes at least one lead for sensing electrical activity of a heart, a synchronizing stage for providing a synchronizing signal upon detection of an R wave, a timer for timing time intervals between immediately succes... | 10/08/1996 |
| 5554175 | Therapy termination in an atrial defibrillator and method An atrial defibrillator applies cardioverting electrical energy to the atria of a heart when in need of cardioversion. The atrial defibrillator includes an atrial fibrillation detector for determining if the atria of a heart are in need of cardioversion, ... | 09/10/1996 |
| 5549641 | Atrial fibrillation type selective cardiovertor and method An atrial cardiovertor/defibrillator provides therapy to the atria corresponding to the type of atrial arrhythmia occurring in the atria of the heart. The atrial cardiovertor/defibrillator includes a memory for storing respective different criteria for ea... | 08/27/1996 |
| 5531768 | Implantable atrial defibrillator having ischemia coordinated intervention therapy and method An atrial defibrillator coordinates atrial cardioversion with ischemia detection. The defibrillator includes a plurality of sense amplifiers for sensing electrical activity of a heart. An ischemia detector is responsive to the sensed electrical activity o... | 07/02/1996 |
| 5522850 | Defibrillation and method for cardioverting a heart and storing related activity data An implantable atrial defibrillator applies cardioverting electrical energy to the atria of a human heart in response to detection of an atrial fibrillation episode and stores selected data associated with the detected atrial fibrillation episode. The atr... | 06/04/1996 |
| 5509925 | Atrial fibrillation detector and defibrillator using the same An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrilla... | 04/23/1996 |
| 5476498 | Coronary sinus channel lead and method An intravenous lead for use with a cardiac device for implantation in the coronary sinus or the coronary sinus and great cardiac vein of the heart provides positive fixation for the lead when implanted in the coronary sinus or the coronary sinus and great... | 12/19/1995 |
| 5464433 | Atrial defibrillator and method providing dual reset of an interval timer An implantable atrial defibrillator for applying cardioverting electrical energy to the atria of a human heart. The atrial defibrillator includes a first detector for sensing a depolarization activation wave at a first pair of locations of the heart and g... | 11/07/1995 |
| 5464432 | Implantable atrial defibrillator having an intermittently activated fibrillation detector An implantable automatic atrial defibrillator powered by a depletable battery power source conserves battery power for extending the predicted life of the defibrillator by intermittently detecting for atrial fibrillation. The atrial defibrillator includes... | 11/07/1995 |
| 5464431 | Atrial fibrillation detector An atrial defibrillator implantable beneath the skin of a patient includes an intervention sequencer for performing an intervention sequence. The intervention sequencer includes an atrial fibrillation detector for determining if atrial fibrillation is pre... | 11/07/1995 |
| 5458621 | Automatic gain control and method for enabling detection of low and high amplitude depolarization activation waves of the heart and atrial defibrillator utilizing the same An apparatus reliably detects a depolarization activation wave of the heart. The apparatus includes a sensor in electrical contact with the heart for sensing electrical activity of the heart and including an amplifier for amplifying the sensed electrical ... | 10/17/1995 |
| 5441519 | Implantable atrial defibrillator having delayed intervention therapy An implantable atrial defibrillator delays therapy intervention for a delay time period after initial detection of fibrillation to provide the atria with an opportunity to spontaneously revert to normal sinus rhythm before cardioversion is attempted. A ti... | 08/15/1995 |
| 5433729 | Atrial defibrillator, lead systems, and method An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrilla... | 07/18/1995 |
| 5411031 | Implantable cardiac patient monitor A cardiac monitor which is fully implantable beneath the skin of a patient monitors heart rate variability of a human heart. The heart rate monitor includes at least one electrode which establishes electrical contact with the heart. During a heart monitor... | 05/02/1995 |
| 5405375 | Combined mapping, pacing, and defibrillating catheter A catheter insertable into a body provides for both sensing electrical activity of the heart at localized locations of the heart and defibrillating the heart when defibrillation is required. The catheter includes a plurality of connectors at the proximal ... | 04/11/1995 |
| 5403354 | Defibrillator and method utilizing three channel sensing An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrilla... | 04/04/1995 |
| 5403353 | Post-heart surgery cardioverting system and method A post-surgical cardioverting system and method applies cardioverting electrical energy to the atria of the heart of a post-surgical heart patient. The system includes a first lead including a first elongated electrode having a proximal end and a distal e... | 04/04/1995 |
| 5395373 | Atrial defibrillator and method for setting energy threshold values An implantable atrial defibrillator cardioverts the atria of a patient's heart and determines the quantity of cardioverting electrical energy required for cardioverting the atria of the patient. The atrial defibrillator includes a detector for detecting a... | 03/07/1995 |
| 5388578 | Electrode system for use with an implantable cardiac patient monitor An implantable cardiac monitor is arranged for detecting both arrhythmias and ischemia of the human heart. The monitor includes subcutaneous electrodes for establishing electrical contact with the heart and a sense amplifier coupled to each electrode for ... | 02/14/1995 |
| 5387233 | Intravenous cardiac lead with improved fixation and method An intravenous lead for use with a cardiac device implantable beneath the skin of a patient provides positive fixation for the lead when implanted in an artery or vein of the heart. The lead includes a lead body adapted to be fed into an artery or a vein ... | 02/07/1995 |
| 5350402 | Atrial defibrillator and method for providing T wave detection and interval timing prior to cardioversion An implantable atrial defibrillator and method provides cardioverting electrical energy to the atria of a human heart in need of cardioversion. The atrial defibrillator includes a first detector for detecting R waves of the heart, a second detector for de... | 09/27/1994 |
