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5851227 |
Cardiac pacemaker cable lead
A lead assembly adapted for endocardial fixation to a human heart is provided. The lead assembly includes a lead body that has a proximal end provided with a connector for electrical connection to...
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5846196 |
Intravascular multielectrode cardiac mapping probe
An intraventricular multielectrode cardiac mapping probe having an electrode array assembly which is initially stored within the distal lumen of a delivery catheter and after placement of the tip...
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5846238 |
Expandable-collapsible electrode structures with distal end steering or manipulation
Collapsible electrode assemblies and associated methods employing a structure having an axis and a distal end. The structure comprises a wall peripherally enclosing an interior. The structure is...
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5843153 |
Steerable endocardial lead using magnetostrictive material and a magnetic field
Magnetically alterable material, such as magnetostrictive material, is used in combination with a suitable substrate and a suitable magnetic field to produce a stylet and lead assembly that curves...
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5843152 |
Catheter system having a ball electrode
An improved catheter system having at least one electrode at its tip section, can be used in ablating the arrhythmogenic point of a patient. A catheter suitable for radiofrequency ablation of...
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5843135 |
Pacing system with lead having a single conductor for connecting to pressure sensor and electrode
A pacing system is provided having a lead with a pressure transducer or other sensor, the lead being characterized by having only a single conductor connecting the pacemaker with the signals from...
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5843154 |
Apparatus for performing diagnostic and/or therapeutical heart interventions with a catheter
The apparatus for performing diagnostic and/or therapeutical heart interventions comprises a catheter (1) which contains a guided catheter (2), a guiding catheter (3) surrounding the guided...
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5843076 |
Catheter with an electromagnetic guidance sensor
The present invention relates to an electrophysiology catheter (an electrode catheter) having an electromagnetic sensor designed internally into the tip portion. The catheter is a size 7 French or...
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5842984 |
Mapping and ablation catheter system with locking mechanism
A recording and ablation catheter method and system for creating linear lesions in an atrial or other chamber of a heart is disclosed which includes an array of readily controlled electroded...
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5840030 |
Ultrasonic marked cardiac ablation catheter
A method and system for therapy of cardiac arrythmias is provided which uses a directional electric field applied via ablation electrode for cardiac ablation together with an ultrasonic imaging...
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5836874 |
Multi-function electrode structures for electrically analyzing and heating body tissue
Systems and methods for heating body tissue place a multi-function structure having an exterior wall in contact with body tissue. The structure includes an array of electrically conducting...
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5836947 |
Flexible structures having movable splines for supporting electrode elements
A flexible electrode support is bent to define an arcuate shape that extends beyond the distal end of an associated guide body. At least one of the ends of the support is free of attachment to the...
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5833673 |
Guiding introducer system for use in the treatment of left ventricular tachycardia
A process for the treatment of ventricular tachycardia in the left ventricle using a retrograde approach by use of ablating and/or mapping catheters guided by a guiding introducer system. Also...
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5833604 |
Variable stiffness electrophysiology catheter
A catheter supporting a tip electrode for percutaneous insertion into a living body having a steering mechanism that includes an elongated body bendable in response to external forces to steer the...
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5833632 |
Hollow guide wire apparatus catheters
A catheter guide wire includes an elongate tubular body about which a catheter may be threaded for guidance to a target location in a vasculature passageway of a body. The elongate body includes a...
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5830213 |
Systems for heating and ablating tissue using multifunctional electrode structures
Systems and methiods for heating or ablating tissue use a multifunctional electrode assembly. The electrode assembly includes a wall comprising an electrically conductive material peripherally...
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5830209 |
Multi-fiber laser catheter
Laser catheters according to the invention include multiple optical fibers for delivery of laser energy to a pre-determined treatment site in the therapeutic treatment of cardiac tissue. A fixation...
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5830210 |
Catheter navigation apparatus
A catheter navigation apparatus includes a catheter system for percutaneous insertion into an internal organ cavity. The catheter system includes a treatment catheter and a navigation catheter; the...
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5827278 |
Deflectable tip electrode catheter with nylon stiffener and compression coil
A deflectable tip catheter includes an elongated catheter body, a tip section carrying electrodes at the distal end of the catheter body and a control handle at the proximal end of the catheter...
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5823189 |
Multiple electrode support structures with spline elements and over-molded hub
An electrode support structure has at least two spline leaves, each comprising an opposed pair of spline elements connected by a center web. Each web has a hole through which a pin assembly extends...
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5823956 |
Method and apparatus for thoracoscopic intracardiac procedures
Devices, systems, and methods are provided for accessing the interior of the heart and performing procedures therein while the heart is beating. In one embodiment, a tubular access device having an...
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5824029 |
Implantable medical system for performing transthoracic impedance measurements associated with cardiac function
A method and apparatus for deriving impedance signals with an implanted pulse generator and lead system. In particular the present invention provides a medical system which delivers electrical...
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5824030 |
Lead with inter-electrode spacing adjustment
A single-pass transvenous lead for atrial sensing and pacing, ventricular sensing and pacing, as well as for ventricular and atrial defibrillation. The lead optimizes the positioning of the...
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5824031 |
Apparatus and method for deflecting a tip of a lead or catheter
A steerable or deflectable distal tip of a cardiac instrument is provided by creating a differential tension in a distal portion, causing the distal portion either to curve if originally straight,...
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5823955 |
Atrioventricular valve tissue ablation catheter and method
An atrioventricular valve tissue ablation catheter (2), especially suited for treating Mahaim fibers, includes a shaft (4) with a deflectable tip (20) at the distal end (6) and a handle (10) at the...
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5824005 |
Maneuverable electrophysiology catheter for percutaneous or intraoperative ablation of cardiac arrhythmias
A catheter capable of both sensing myocardial electrical activity and delivering ablating energy within myocardial tissue is disclosed. The catheter comprises electrodes on the outer sheath and...
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5814029 |
Guiding introducer system for use in ablation and mapping procedures in the left ventricle
A guiding introducer system for use in the treatment of arrhythmia associated with the left ventricle from the ventricular side comprising an inner guiding introducer and an outer guiding...
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5810887 |
Temporary catheter
A catheter includes a torque transmission assembly coupled to an elongate body and an electrical connector wherein the torque transmission assembly can transmit torque and electrical current along...
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5807249 |
Reduced stiffness, bidirectionally deflecting catheter assembly
A reduced stiffness, bidirectionally deflecting catheter assembly (2) includes a handle (4) and flexible catheter shaft (6) with a tip section (12) secured to its distal end (14). The tip section...
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5803083 |
Guiding catheter with ultrasound imaging capability
A steerable guiding catheter having an ultrasound imaging distal tip for use in guiding an electrophysiology catheter. The guiding catheter includes a steering mechanism in order to steer the tip...
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5803928 |
Side access "over the wire" pacing lead
Intravenous cardiac leads having at least one electrode intended to be implanted within the coronary artery are disclosed. Also disclosed are structures and techniques for advancing such leads...
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5800465 |
System and method for multisite steering of cardiac stimuli
A system and corresponding method for steering stimulus pulses to one or more selected cardiac sites are disclosed. An apparatus and corresponding method permit improved capture and easy adjustment...
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5800496 |
Medical electrical lead having a crush resistant lead body
A medical lead which has a connector assembly coupled to an electrode by a lead body, the lead body is designed so as to have greater resistance to crush fatigue in the area which is located...
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5800497 |
Medical electrical lead with temporarily stiff portion
A medical electrical lead which features a portion of the lead body which may be made temporarily stiff. The lead preferred is designed for implantation into a body and would include electrodes for...
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5797905 |
Flexible tissue ablation elements for making long lesions
Devices and methods for ablating body tissue use wire wound about a support body in adjacent windings to form one or more elongated electrodes. A connection couples the wire to a source of ablation...
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5796044 |
Coiled wire conductor insulation for biomedical lead
A biomedical lead conductor body formed of a coiled wire conductor that is sheathed loosely within a coiled insulative sheath of biocompatible and biostable material allowing a gap or space to be...
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5792194 |
Transvalvular impedence measurement
A transvalvular impedance measurement made between an atrium and a ventricle electrode of a standard implanted electro-catheter may be used to provide information indicative of the mechanical state...
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5792140 |
Catheter having cooled multiple-needle electrode
An improved ablation catheter with at least one multiple-needle electrode can be used in ablating the arrhythmogenic region instead of an arrhythmogenic point of a patient. This catheter is...
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5785706 |
Nonsurgical mapping and treatment of cardiac arrhythmia using a catheter contained within a guiding introducer containing openings
A process for the treatment of cardiac arrhythmia by use of ablation and/or mapping procedures comprising ablating discrete ablation tracks within the heart by use of a guiding introducer...
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5782900 |
Catheter system having safety means
A catheter system suitable for electrophysiology mapping and radiofrequency ablation of cardiac tissue comprises a catheter shaft having a distal end, a proximal handle, and at least a lumen...
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5782899 |
Endocardial mapping and ablation system utilizing a separately controlled ablation catheter and method
Endocardial mapping and ablation system for introduction into a chamber of a heart formed by a wall and having a passage leading thereto. The system is comprised of a catheter probe having a distal...
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5782239 |
Unique electrode configurations for cardiovascular electrode catheter with built-in deflection method and central puller wire
An electrophysiological mapping device includes an outer catheter, an inner catheter slidable within the outer catheter, and an electronic activation and recording device for electrically...
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5782828 |
Ablation catheter with multiple flexible curves
An electrophysiology catheter suitable for radiofrequency ablation of cardiac tissue endocardially or epicardially comprises a catheter shaft whereby a distal tip section having multiple steerable...
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5782824 |
Cardiac catheter anchoring
A catheter uses a steerable outer catheter with an inner catheter rotatable and extendable with respect to the outer catheter. The outer catheter may be positioned within a patient's heart and a...
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5779699 |
Slip resistant field focusing ablation catheter electrode
An RF ablation catheter of the type comprising a flexible elongate catheter body having at least one lumen therethrough and having a proximal handle end and a distal end section adapted to be...
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5772590 |
Cardiovascular catheter with laterally stable basket-shaped electrode array with puller wire
A catheter for cardiac mapping includes a tubular catheter shaft having a proximal end, a distal end, and a lumen, the lumen being optionally closed at the distal end. The catheter further includes...
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5769077 |
Multi-contact implantable electrode cable with a resorbable stiffening element
An electrode device which has a proximal end and distal end, contains of a number of thin, insulated electrical conductors each with a proximal end and a distal end, the conductors being equipped...
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5755765 |
Pacing lead having detachable positioning member
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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5755714 |
Shaped catheter for transmyocardial revascularization
A shaped catheter for accessing and treating preselected surfaces of cavities and organs within the human body, the apparatus including a tubular, shaped outer sheath with at least one guide hole...
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5755764 |
Implantable cardiac stimulation catheter
An implantable cardiac stimulation catheter includes a helical electrode segment disposed about a central core of electrically non-conductive material for delivering an electrical pulse to the...
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