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6292692 |
Medical treatment device with functions, operated under passcode control
A medical treatment device includes a plurality of digitally controlled medical treatment modules with a feature authorizing system to enable selected treatment modules in response to the entry and...
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6292693 |
Contractility enhancement using excitable tissue control and multi-site pacing
A method and apparatus for stimulating cardiac tissue. Pacing pulses are applied to the heart at multiple sites in at least two different chambers of the heart; and an Excitable Tissue Control...
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6282447 |
Cardiac stimulator with rate-adaptive PVARP
It has been determined that certain cardiac stimulators may operate in a manner in which the ventricular pace refractory period (VPRP) may be greater than the post-ventricular atrial refractory...
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6278896 |
Biocompatible glass-metal through-ducts and their use
Biocompatible glass-metal through-ducts comprised of an outside conductor, a biocompatible glass and at least one inside conductor, with the outside conductor comprising a nickel-free, stainless,...
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6275731 |
Pseudo-fusion management during automatic capture verification
A method for reducing the affects of intrinsic detection latency in a cardiac rhythm management device, wherein said method is initiated immediately prior to delivering a stimulation pulse to the...
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6272379 |
Implantable electronic system with acute myocardial infarction detection and patient warning capabilities
Disclosed is a system for detecting a myocardial infarction (i.e., a heart attack) at the earliest possible time and promptly warning the patient that he should immediately seek medical care....
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6267778 |
Pacing systems for treating functional ventricular conduction abnormalities of intrinsic origin
Therapeutic implantable cardiac pacing systems incorporating electrocardiographic acquisition and QRS discrimination circuitry, for the purpose of ventricular pacing during wide QRS complexes of...
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6266552 |
Method and arrangement for locating a measurement and/or treatment catheter in a vessel or organ of a patient
In a method for locating a measurement and/or treatment catheter in a vessel or organ of a patient relative a fixed catheter, also positioned within the patient in the vicinity of the measurement...
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6259948 |
Medical device
A device in the form of a cardiac pacemaker for treating a malfunctioning heart, in which the intrinsic heart rate information is combined with secondary sensor variance information to select an...
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6253107 |
Cardiac pacing to induce heart rate variability
Heart function is improved by inducing heart rate variability through cardiac pacing. Electrical pacing signals are generated and applyied to a heart to improve heart function. The pacing signals...
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6253106 |
Configurable multisite active implantable medical device
An active implantable medical device, especially a cardiac pacemaker, defibrillator and/or cardiovertor, of the configurable multisite type. In this multisite device, electrodes are placed in at...
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6249701 |
Implantable device with automatic sensing adjustment
A system and method is provided to view an anatomical structure such as a blood vessel in high contrast with its surrounding tissue. The system and method may be used to produce an image of an...
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6246909 |
Implantable cardiac stimulator wherein the pacing rate is controlled dependent on variations in the spontaneous interval
An implantable stimulating device for electrical stimulation of a heart has a stimulus generator which generates electrical stimuli and at least one lead for delivering the stimuli from the...
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6243603 |
Methods and apparatus for detecting medical conditions of the heart
An implantable system for detecting electrical activity from a patient's heart comprises a first sensing electrode configured for positioning through the coronary sinus ostium and within a vein on...
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6238422 |
Pacemaker system with therapy for minimizing risk of morning myocardial infarctions or arrhythmias
There is provided a pacemaker system having the capability of providing therapy for preventing conditions likely to lead to myocardial infarction or ventricular arrhythmia during patient morning...
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6238419 |
Heart stimulating device having fusion and pseudofusion heartbeat detection capability
A heart stimulating device has the capability of detecting fusion and/or pseudofusion heartbeats by measuring electrical impedance encountered by a delivered stimulation pulse. The device has a...
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6236887 |
Drug-device combination for controlling the contractility of muscles
An apparatus for the combined drug/electric-stimulation treatment of a cardiac muscle comprises circuitry (S) for creating a non-excitatory electric potential between at least two points (R1, R2)...
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6233484 |
Apparatus and method for controlling the contractility of muscles
An apparatus comprises circuitry for creating a non-excitor electric potential between at least two points located in the vicinity of a muscle. A method is provided which employs the apparatus for...
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6230056 |
Method and apparatus for preventing clotting during a trial fibrillation
A device for preventing clotting during atrial fibrillation includes optional electrical cardiac output forcing (ECOF) or ICD/AED back up. The device includes a power supply for operating the...
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6223079 |
Bi-ventricular pacing method
A pacing system and method for providing multiple chamber pacing of a patient's heart, and in particular, pacing programmed for treatment of various forms of heart failure. The system utilizes...
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6219581 |
Pacing lead system
A pacing electrode arrangement for stimulating the heart by means of an implantable pacemaker, comprising a first pacing electrode arranged in the vena cava superior and a second pacing electrode...
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6208899 |
Implantable cardioversion device with automatic filter control
An implantable cardioversion device includes a sensor for sensing intrinsic cardiac activity in a cardiac chamber, for example, the ventricle, and filtering the same using a bandpass filter having...
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6198968 |
Implantable cardiac stimulator with safe noise mode
An implantable medical device for electrically stimulating the heart to beat generally includes a processor, a plurality of electrodes, a sense amplifier, a pulse generator, and a heart status...
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6188926 |
Pacemaker with adaptable backup pacing in the presence of electromagnetic interference
A pacemaker has an interference detecting circuit, and an evaluating and storing unit for continuously evaluating and storing the heart rate. The evaluating and storing unit stores the rate...
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6169918 |
Cardiac rhythm management system with cross-chamber soft blanking
A cardiac rhythm management system provides cross-chamber "soft blanking." It senses desired electrical heart activity signals associated with a first chamber electrode while reducing unwanted...
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6167307 |
Auto PVARP adaptation adaptive search AV
An AV search method and apparatus is taught with some variation. It allows a pacemaker to find the appropriate AV interval so as to avoid pacing in the ventricle when it is not necessary, even if...
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6152882 |
Apparatus and method for chronic measurement of monophasic action potentials
Apparatus and methods adapted for in vivo chronic measurement of cardiac monophasic action potentials (MAPs). The methods include, inter alia, providing a sensing electrode in contact with cardiac...
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6141586 |
Method and apparatus to allow cyclic pacing at an average rate just above the intrinsic heart rate so as to maximize inotropic pacing effects at minimal heart rates
Method and apparatus for cyclic ventricular pacing starting at a rate just above the intrinsic atrial firing rate (overdrive pacing), followed by relaxation to a rate just below the intrinsic...
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6141587 |
Augmentation of muscle contractility by biphasic stimulation
Augmentation of electrical conduction and contractility by biphasic stimulation of muscle tissue. A first stimulation phase has a first phase polarity, amplitude, and duration. The first...
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6141588 |
Cardiac simulation system having multiple stimulators for anti-arrhythmia therapy
A medical system comprising a control device (referred to as a "planet") and a plurality of sensing and stimulating devices (referred to as "satellites") is disclosed. The satellites are relatively...
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6129745 |
Medical device for automatic diagnosis of undersensing by timing
There is provided a system and method applicable for use with a dual chamber pacemaker for determining whether long atrial intervals are due to atrial undersensing or to sick sinus syndrome. The...
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6127410 |
Compositions, apparatus and methods for facilitating surgical procedures
Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and...
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6128532 |
Pacemaker with automatically controlled ventricular safety pulse
There is provided a pacemaker system having the feature of delivering a ventricular safety pulse (VSP) following an early ventricular sense (VS), wherein the pacemaker automatically determines...
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6128533 |
Pacemaker with automatic PVARP adjustment during automatic mode switching
An implantable dual-chamber pacemaker programmed to operate primarily in an atrial tracking mode includes an atrial rate smoothing filter for producing a filtered atrial rate (FAR) from an...
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6122546 |
Pacemaker and method of operating same that provides functional atrial cardiac pacing with ventricular support
A special type of AV/PV hysteresis is provided in a dual-chamber pacemaker. A long AV delay is initially provided, thereby affording as much opportunity as possible for natural AV conduction to...
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6122545 |
Multiple channel sequential cardiac pacing method
Multi-chamber cardiac pacing systems for providing synchronous pacing to at least the two upper heart chambers or the two lower heart chambers or to three heart chambers or to all four heart...
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6115632 |
Dual chamber pulse generator with periodic PMT control
A dual chamber pulse generator senses atrial and ventricular activity of a heart and provides pacing pulses to at least a ventricle of the heart. The pulse generator includes a first detector...
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6112119 |
Method for automatically adjusting the sensitivity of cardiac sense amplifiers
Two mechanisms work together to adjust two variables independently so that the gain of an input amplifier used to find physiologic signals in an implantable medical device can be automatically...
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6104949 |
Medical device
A device and method useful in the diagnosis and treatment of congestive heart failure. Specifically the present invention senses the trans-thoracic impedance as well as patient posture. By...
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6101416 |
System and method for atrial autocapture in single-chamber pacemaker modes using far-field detection
An implantable pacemaker automatically verifies atrial capture and performs atrial stimulation energy assessment when atrial capture is absent. The pacemaker delivers a stimulation pulse in the...
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6096064 |
Four chamber pacer for dilated cardiomyopthy
An endocardial apparatus for pacing four chambers of a heart, comprising: a power source housed in an implantable can, first, second and third leads having proximal and distal ends, each lead being...
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6097983 |
Cardiac event detecting system for a heart stimulator
A cardiac event detecting system for an implantable heart stimulator intended to be connected to the heart of a patient through at least two unipolar electrode leads or at least one bipolar...
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6083247 |
Perpendicular atrial fixation/stimulation loop
The present invention provides a pacing system with a lead having a fixation element for providing stable fixation relative to the patient's SVC, preferably providing for positioning of the atrial...
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6085118 |
Implantable multi-electrode device for electrically stimulating a physiological function with automatic selection of housing terminal-to-electrode connection dependent on a sensed signal
An implantable cardiac stimulator has a connector with at least two terminals, each terminal being connectible to an implantable electrode for delivering stimulation pulses to a heart and/or for...
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6085119 |
Single pass endocardial lead for multi-site atrial pacing
A single-pass endocardial lead electrode is adapted for implantation within a single chamber of the heart. The lead includes a first electrode and a second electrode. The first and second...
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6081747 |
Dual-chamber implantable pacemaker having negative AV/PV hysteresis and ectopic discrimination
A dual-chamber implantable pacemaker is configured to operate in the DDD or DDDR mode with its AV (or PV) interval automatically set to be a small time interval less than the natural conduction...
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6078835 |
Pacemaker wherein emission of stimulation pulses is controlled dependent on stretching of the ventricular wall
A pacemaker has control circuits contained in an enclosure and a lead containing an electrical conductor connected to an electrode for delivering electrical stimulation pulses to a heart. The...
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6073049 |
Programmably upgradable implantable cardiac pacemaker
An implantable cardiac pacemaker is adapted to be selectively non-invasively upgraded from time to time after implantation to provide a plurality of different diagnostic, functional, and pacing...
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6070102 |
Audible sound confirmation of programming an implantable medical device
Methods and apparatus for confirming programming of implantable medical device (IMD) operating parameter values and operating modes by emission of audible sounds by the IMD are disclosed. The IMD...
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6070100 |
Pacing system for optimizing cardiac output and determining heart condition
A pacing system and method for providing multiple chamber pacing of a patient's heart, and in particular, pacing programmed for treatment of various forms of heart failure. The system utilizes...
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