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5755762 |
Medical lead and method of making and using
A continuous sheath of open-celled porous plastic, preferably ePTFE, is used on the outside of an implantable lead, extending along the lead body and the electrodes, in such a way that the lead is...
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5755664 |
Wavefront direction mapping catheter system
A wavefront direction mapping catheter system is disclosed which includes a wire catheter that, when placed on the inner surface of the heart, identifies the direction of the electric field...
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5755763 |
Pacemaker connector with sealable access openings and methods for its use
A pacemaker lead is disclosed of the type comprising a flexible cord formed of at least one spiralled electric conductor and surrounded by a sheath of insulating material and connected, at a...
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5755663 |
Apparatus for procedures related to the electrophysiology of the heart
Methods and apparatus are disclosed for use in procedures related to ther electrophysiology of the heart, such as identifying or evaluating the electrical activity of the heart, diagnosing and/or...
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5755766 |
Open-ended intravenous cardiac lead
Intravenous cardiac leads having at least one electrode intended to be implanted within the coronary veins are disclosed. Also disclosed are structures and techniques for advancing such leads...
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5755761 |
Atrial pacing catheter and method having multiple electrodes in the right atrium and coronary sinus
An atrial catheter for insertion into the coronary sinus carries free-floating sensing electrodes and one or more pacing electrodes in contact with the tissue of the coronary sinus.
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5755760 |
Deflectable catheter
A deflectable ablation catheter which includes an elongated catheter body with an electrode located along a distal section of the catheter body. The catheter is provided with a deflection wire...
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5752915 |
Device for manipulating a stylet unit for positioning a medical electrode cable in a body cavity
A device for manipulating a stylet unit for positioning an electrode cable in a body cavity has an elongate housing, an elongate, axial cavity in the housing and an operating slide, axially movable...
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5746616 |
Defibrillation electrode connection
A method for electrically attaching electrode wire to a conductor in a defibrillation lead is disclosed. The method comprises melting the end of the wire with a hydrogen torch to form a ball of...
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5741320 |
Catheter control system having a pulley
A steerable catheter comprising a resilient body member, a manipulation handle attached to the proximal end of the body member, a control wire extending from the handle to the distal end of the...
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5741214 |
Accessory pathway detecting/cauterizing apparatus
An accessory pathway detecting apparatus measures action potentials from first and second electrode leads, and outputs the obtained action potentials, as potential maps, to a CRT or a printer such...
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5738683 |
Mapping and ablation catheter
A catheter which can be utilized for mapping and/or for ablation in the chamber or chambers of a heart or another body organ has a flexible sheath the distal end of which can be advanced through a...
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5732698 |
Systems for examining the electrical characteristics of cardiac tissue while minimizing contact with blood within the heart
Systems for examining heart tissue morphology deploy one or more electrodes into the heart in contact with endocardial tissue. The systems transmit electrical current from the electrodes in paths...
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5733323 |
Electrically conductive unipolar vascular sheath
An electrically conductive sheath introducer is provided which functions as a unipolar electrode as well as a percutaneous vascular sheath introducer for a catheter. Typically, the catheter will...
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5730128 |
Endocardial mapping apparatus
An endocardial mapping apparatus for mapping the wall of a chamber of the heart having blood therein. The apparatus includes a flexible elongate tubular member having proximal and distal...
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5728149 |
Integral spiral band electrode for transvenous defibrillation leads
A cardioversion/defibrillation lead, and method of manufacture thereof, for location in a human heart. An elongated lead body having an insulating outer sheath extends between proximal and distal...
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5728148 |
Stylet unit for implanting a medical electrode cable
A stylet unit suitable for stiffening a hollow electrode cable, such as during the introduction and the anchoring of a medical electrode cable in the human body, includes a combination of a pair of...
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5725525 |
Multiple electrode support structures with integral hub and spline elements
An electrode support structure has spline elements radiating from a center hub in a circumferentially spaced relationship. The spline elements and hub are integrally formed from a single sheet of...
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5725524 |
Apparatus for R-F ablation
A method and apparatus for ablation of body tissue. A catheter provided with a hollow needle is employed both for mapping the location to be ablated by injection of an excitability reducing agent...
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5722403 |
Systems and methods using a porous electrode for ablating and visualizing interior tissue regions
A porous electrode assembly includes a wall having a surface capable of contacting tissue. The wall peripherally surrounds an interior area. The assembly also includes a lumen to convey a medium...
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5722401 |
Endocardial mapping and/or ablation catheter probe
A catheter probe comprising a flexible elongate tubular member having proximal and distal extremities. An expandable assembly capable of moving from a contracted position to an expanded position is...
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5720775 |
Percutaneous atrial line ablation catheter
A percutaneous line ablation catheter is provided for ablating maze-like patterns on the surface of the heart of a patient through line ablation procedure. Typically, the catheter will include an...
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5718701 |
Ablation electrode
An electrode catheter is provided for ablation of arrhythmogenic tissue in a malperforming heart and includes an elongated catheter tube having longitudinally spaced apart proximal and distal ends....
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5715818 |
Method of using a guiding introducer for left atrium
A guiding introducer for use in the left atrium comprised of a first, second and third section wherein the first section is a generally elongated straight section wherein merged with the distal end...
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5716389 |
Cardiac ablation catheter arrangement with movable guidewire
The catheter sensing and ablation arrangement allows location and cardiac abalation on a patient. The arrangement includes an electrically nonconductive catheter body, with a guide-wire lumen. The...
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5715817 |
Bidirectional steering catheter
A bidirectional steering catheter comprising a distal electrode assembly, a flexible tip assembly, an elongated shaft having a central lumen running the length of the shaft, and a handle/actuator....
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5716390 |
Reduced diameter active fixation pacing lead using concentric interleaved coils
A body implantable flexible lead assembly, adapted to transmit electrical pulses between a proximal end of the lead assembly and a distal end of the assembly to stimulate selected body tissue,...
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5713945 |
Implantable lead modified to reduce tissue ingrowth
An implantable lead for use with an implantable pacemaker/cardioverter/defibrillator. Since irradiation from a radioisotope source is capable of inhibiting the growth of hyperproliferating cells as...
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5713946 |
Apparatus and method for intrabody mapping
This invention concerns an apparatus and method for the treatment of cardiac arrhythmias. More particularly, this invention is directed to a method for ablating a portion of an organ or bodily...
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5713944 |
Cardioversion-defibrillation catheter lead having selectively exposable outer conductors
A cardioversion/defibrillation catheter lead has selectively exposable outer conductors that increase the effective electrode area and that can be used to direct electrical countershock vectors...
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5709709 |
ICD with rate-responsive pacing
An implantable cardioverter defibrillator (ICD) system features rate-responsive pacing capabilities. An electrical pulse generating device having a housing containing pulse generating circuitry is...
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5702438 |
Expandable recording and ablation catheter system
A recording/ablation system includes an inner working catheter for deployment from a distal port in an outer sheath or catheter in a heart chamber, or the like, which has a plurality of divergent...
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5697928 |
Cardic electrode catheter
An electrode catheter is disclosed for creating a linear lesion in heart tissue of a heart chamber in order to correct cardiac arrhythmia. The catheter is elongated in dimension such that, upon...
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5697927 |
Catheter for RF ablation with cooled electrode and apparatus for use therewith
A catheter for radio frequency ablation with a cooled electrode for use in tissue having a surface comprising an elongate member having proximal and distal extremities. A metal conducting electrode...
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5697377 |
Catheter mapping system and method
A system and method are provided for catheter location mapping, and related procedures. Three substantially orthogonal alternating signals are applied through the patient, directed substantially...
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5688267 |
Systems and methods for sensing multiple temperature conditions during tissue ablation
Systems and methods for ablating body tissue use an electrode for contacting tissue to form a tissue-electrode interface. The electrode is adapted to be connected to a source of ablation energy to...
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5683444 |
Composite electrode
An implantable assembly for defibrillation and monitoring and/or regulating the beat of a heart. The defibrillation electrode is flexible and preferably made of braided carbon fiber and conductive...
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5680860 |
Mapping and/or ablation catheter with coilable distal extremity and method for using same
A mapping and/or ablation catheter for introduction into a chamber having a wall accessible by a passage leading to the chamber. The catheter includes a flexible elongate member extending along a...
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5676662 |
Ablation catheter
A catheter for mapping and ablating cardiac tissue comprising an elongated catheter body with proximal and distal ends and an electrode comprising an electrode conductor and a helical electrode...
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5674273 |
Implantable pacing lead with crush resistant, protective sleeve
An implantable pacing lead with a reinforcing sheath covering a portion of the lead body to prevent physical stress damage to the lead body. The reinforcing sheath includes a metal coil or ribbon...
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5674271 |
Catheter with steerable stylet
An electrode lead for intracorporeal stimulation of body tissue includes a tubular electrode cable and a removable stylet therein for guiding the cable during insertion through a blood vessel and...
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5674274 |
Implantable adjustable single-pass A-V lead for use with an implantable stimulation device
An adjustable single-pass A-V lead for cardiac pacing comprises a ventricular lead body with a ventricular electrode at its distal tip, and an atrial sheath slidably mounted over the ventricular...
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5673704 |
Method of using endocardial impedance for determining electrode-tissue contact
A method of locating infarcted myocardial tissue in a beating heart includes the step of inserting an impedance measuring tip of a catheter into the chamber of the beating heart, particularly the...
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5674272 |
Crush resistant implantable lead
The present invention is directed toward providing a composite lead body design for pacing and defibrillation leads. This lead body design improves the lead crush resistance in the lead segment...
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5673695 |
Methods for locating and ablating accessory pathways in the heart
Systems and methods sense electrical events about a selected annulus region of the heart to identify the location of an accessory pathway. The systems and methods establish a contact site between...
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5666970 |
Locking mechanism for catheters
A locking mechanism for a steerable catheter, the catheter comprising a resilient body member having a restoring force that tends to maintain the body member at a predetermined orientation, and a...
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5662697 |
Transvenous internal cardiac defibrillation apparatus having lead and electrode providing even distribution of electrical charge
A lead for use with an implanted pulse generator which may be a pacemaker or defibrillator or combination thereof. The lead can deliver an electrical charge to cardiovert or defibrillate the...
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5649967 |
Safety element to permanently assure the electric reliability of pulse transmitting leads utilized in cardiac pacemakers for the electric stimulation of the heart
Safety element intended to assure in time the electric reliability of pulse transmitting leads, comprised in apparatus for the electric stimulation of the heart (pacemaker) and consisting of a main...
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5649974 |
Low profile defibrillation catheter
A low profile defibrillation catheter is disclosed which is much thinner than existing devices. The thin structure is provided by using the current conductor coil as a first electrode coil and the...
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5647870 |
Multiple electrode support structures
An electrode support structure has spline elements radiating from a center hub in a circumferentially spaced relationship. The spline elements include terminal ends spaced from the hub which are...
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