Matches 101 - 150 out of 476 < 1 2 3 4 5 6 7 8 9 10 >
Match Document Document Title
6893439 Structures and methods for deploying electrode elements  
An electrode support structure comprises a guide body having at its distal end a flexible spline leg. The spline leg is flexed to define an arcuate shape to facilitate intimate contact against...
6892087 Vascular introducer with mapping capabilities  
A percutaneous vascular introducer is disclosed which includes a dilator having an elongated tubular body defining opposed proximal and distal end portions, the distal end portion of the dilator...
6876886 Magnetically shielded conductor  
A magnetically shielded conductor assembly containing a conductor disposed within an insulating matrix, and nanomagentic material and nanoelectrical material disposed around the conductor. The...
6871085 Cardiac vein lead and guide catheter  
A guide catheter and medical lead are provided wherein the lead may be used as a pull wire to steer the guide catheter. The guide catheter is provided with a flexible distal segment and the lead is...
6856822 Multi-electrode catheter  
A multi-electrode catheter has a longitudinally extending body with a number of longitudinally extending lumens formed therein and a number of electrode assemblies. Each assembly has an electrode...
6845257 Method for mapping electrical activity  
A method for measuring electrical activity within a tubular region of or near the heart, such as the pulmonary vein, is provided. The method comprises inserting into the heart a distal end of a...
6836687 Method and system for delivery of a medical electrical lead within a venous system  
A system for delivering a medical electrical lead within a coronary venous system that includes an introducer kit for establishing venous access to the coronary venous system and a plurality of...
6829509 Electromagnetic interference immune tissue invasive system  
An electromagnetic immune tissue invasive system includes a primary device housing. The primary device housing having a control circuit therein. A shielding is formed around the primary device...
6826420 Method of mapping a plug in a mapping catheter  
A method of constructing a mapping catheter is described where the catheter has numerous electrodes each associated with a single connection in a plug. The method consists of first arranging a...
6826421 Endocardial mapping catheter  
A mapping catheter is described to map electric field activity in a heart chamber. The catheter has a first grouping of electrodes positioned so that they are not in contact with the patient's...
6799064 Device for the mapping of cardiac arrhythmia foci  
A device for the mapping of cardiac arrhythmia foci including a catheter body having a distal end, first and second point electrodes, which are secured in the surface of the catheter body and which...
6792316 Cardiac implant cable having a coaxial lead  
A cardiac implant electric cable, comprising a conductive lead adapted to supply power to a cardiac implant and a coaxial lead adapted to provide an expanded information conduit to and from said...
6788967 Medical diagnosis, treatment and imaging systems  
A locating system for determining the location and orientation of an invasive medical instrument, for example a catheter or endoscope, relative to a reference frame, comprising: a plurality of...
6772015 Bifurcated lead system for a cardiac vein  
A bi-furcated medical electrical lead that is adapted to be implanted in the cardiac venous system is disclosed. The lead includes a bifurcated distal portion having first and second elongated...
6771996 Ablation and high-resolution mapping catheter system for pulmonary vein foci elimination  
A catheter system includes an outer catheter having a lumen and an inner catheter sized to fit within and slide through the lumen of the outer catheter. Both catheters may be introduced into an...
6757970 Method of making multi-contact electrode array  
A multicontact electrode array suitable for implantation in living tissue includes a distal end having multiple spaced-apart ring contacts or a pattern of spaced-apart electrode contacts carried on...
6751492 System for mapping a heart using catheters having ultrasonic position sensors  
A system for mapping a heart comprises a mapping catheter having an ultrasonic position sensor for insertion into the heart. The system also comprises at least one reference catheter having an...
6745075 Method and apparatus for detection of premature atrial contraction  
In a method for identifying and classifying premature atrial contractions, a cardiac lead having multiple electrodes, electrically separated from each other, at its tip is placed in contact with...
6738674 Implantable coronary sinus lead with mapping capabilities  
A cardiac lead is disclosed that includes a first lead body having opposed proximal and distal end portions and an interior lumen extending therethrough. The first lead body includes a sensor for...
6736811 Expandable-collapsible electrode structures made of electrically conductive material  
Electrode assemblies and associated systems employ a nonporous wall having an exterior for contacting tissue. The exterior peripherally surrounds an interior area. The wall is essentially free of...
6738655 Endomyocardial monophasic action potential for early detection of myocardium pathology  
A catheter-delivered electrode array is used to three dimensionally map the endomyocardial monophasic action potential (MAP). The catheter is used in a method for endomyocardial MAP mapping and for...
6728563 Electrophysiology/ablation catheter having “halo” configuration  
A remotely bi-directional deflectable electrophysiology/ablation catheter of the type intended for placing into an interior passage of the heart is disclosed. The distal end of this elongated...
6728562 Method for creating a virtual electrogram  
A mapping catheter is positioned in a heart chamber, and active electrode sites are activated to impose an electric field within the chamber. The blood volume and wall motion modulates the electric...
6719756 Electrode catheter with reduced noise activity as well as a related processing method for the electrode surface  
A catheter for the ablation of biological, in particular of animal or human, tissue, preferably for the ablation of human myocardial tissue, has at least one ablation or mapping electrode to permit...
6714806 System and method for determining tissue contact of an implantable medical device within a body  
An improved system for monitoring the status of an IMD such as a medical electrical lead during an implant procedure is provided. The system includes a signal generator for supplying a first signal...
6671533 System and method for mapping and ablating body tissue of the interior region of the heart  
A catheter for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region has a handle assembly, and a shaft having a proximal end...
6666864 Electrophysiological probes having selective element actuation and variable lesion length capability  
An apparatus having a support structure, a plurality of longitudinally spaced conductive regions, and an actuation device including at least one electrical contact located within the support...
6650920 Apparatus for the automatic performance of diagnostic and/or therapeutic actions in body cavites  
An apparatus for the automatic performance of diagnostic and/or therapeutic actions in body cavities is provided with a base control unit, which is to be arranged extracorporally, and with a...
6647617 Method of construction an endocardial mapping catheter  
A method of constructing a mapping catheter is described where the catheter has numerous electrodes each associated with a single connection in a plug. The method consists of first arranging a...
6650921 Cardiac lead with minimized inside diameter of sleeve  
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...
6647281 Expandable diagnostic or therapeutic apparatus and system for introducing the same into the body  
An assembly that includes an apparatus having an elongate body and an expandable/collapsible device, a tubular member defining a lumen configured to receive the apparatus, and a handle, fixedly...
6640120 Probe assembly for mapping and ablating pulmonary vein tissue and method of using same  
The present invention relates to a probe assembly for mapping and ablating pulmonary vein tissue and method of using the same. The probe assembly includes an expandable and collapsible basket...
6640119 Method for orienting an electrode array  
A mapping catheter is positioned in a heart chamber, and active electrode sites are activated to impose an electric field within the chamber. The blood volume and wall motion modulates the electric...
6634364 Method of deploying a ventricular lead containing a hemostasis mechanism  
A seal adapted for use with medical devices is provided. The medical device may be a lead having a distal tip adapted for implantation on or about the heart and for connection to a system for...
6615483 Method for coating a tip region of a multipolar electrode lead  
In am method for coating a tip region of an multipolar electrode head adapted to be mounted at a distal end of a lead used preferably for providing heart stimulation by means of a heart stimulation...
6587718 Iontophoretic delivery to heart tissue  
A therapeutic agent is delivered to heart tissue in a body. The therapeutic agent is introduced to a first side of the heart tissue. An electrode is percutaneously located on a second side of the...
6584347 Disturbance-free electromyographic probe  
A myographic probe for detecting an electrical signal produced by a muscle and for reducing the influence of electrode disturbances. The probe includes electrodes and a disturbance reducing...
6574492 Catheter having multiple arms with electrode and position sensor  
A catheter for measuring physiological signals in a heart comprises a structure at a distal end of the catheter wherein the structure has a plurality of arms, an electrode fixed to each arm and a...
6571130 Medical implant with piezoelectric material in contact with body tissue  
A medical implant has an element with at least a part thereof which is composed of piezoelectric material. The piezoelectric material is suitable for contact with body tissue and/or body fluids,...
6562034 Electrodes for creating lesions in tissue regions at or near a sphincter  
Improved electrode assemblies for treating a tissue region at or near a sphincter comprise a support structure and an electrode carried by the support structure for advancement in a path to...
6558380 Instrument for surgical purposes and method of cleaning same  
An instrument for surgical purposes, especially for coagulation, is proposed. This instrument has at least one arm, the tips of the arms having electrical contact regions which can be electrically...
6546270 Multi-electrode catheter, system and method  
A system for detecting electrode-tissue contact comprises a multi-electrode catheter having a location sensor and a plurality of contact electrodes. The catheter preferably further comprises a...
6546292 High impedance, low polarization cardiac electrode  
A layered electrode having a large tissue contact area of the portion of the electrode that is electrically active and providing low polarization losses, high pacing impedance and low chronic...
6540743 Resilient radiopaque electrophysiology electrodes and probes including the same  
A coil electrode for use in an electrophysiology probe includes a first material having a relatively high radiopacity and a second material having a relatively high resiliency. This combination...
6542766 Medical devices adapted for magnetic navigation with magnetic fields and gradients  
A method of applying an elongate magnetic element to the surface of an internal body structure includes applying a magnetic field to the elongate magnetic element to orient the elongate magnetic...
6532378 Pulmonary artery catheter for left and right atrial recording  
A catheter for indirect left atrial mapping from the left pulmonary artery is disclosed. The catheter includes an elongated flexible member with a distal end and a proximal end. Located at the...
6524303 Variable stiffness magnetic catheter  
A steerable magnetic catheter having a proximal end, a distal end, and a lumen therebetween. The catheter has regions of different flexibility along its length. There is a magnetic body adjacent...
6522904 Bipolar sensor for muscle tissue action potential duration estimation  
A bipolar sensor for muscle tissue action potential duration estimation, in accordance with a preferred embodiment of the present invention, comprising two electrodes exposed at the distal end of...
6522905 Apparatus and method for cardiac ablation  
A system and method for cardiac mapping and ablation include a multi-electrode catheter introduced percutaneously into a subject's heart and deployable adjacent to various endocardial sites. The...
6516807 System and methods for locating and guiding operative elements within interior body regions  
Systems and methods for locating an operative element within an interior body space use a locating probe, which includes at least one transmitting element to transmit an electric waveform output...
Matches 101 - 150 out of 476 < 1 2 3 4 5 6 7 8 9 10 >