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5899932 |
Method of axial preferential thermal therapy
A method of prostate treatment includes the step of inserting into a prostatic portion of urethra an energy emitting device that is connected to an energy source. Energy is delivered to the...
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5899857 |
Medical treatment method with scanner input
A noninvasive medical treatment system includes a support for supporting a patient in a predetermined position and a frequency generator for generating essentially monochromatic electromagnetic...
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5895417 |
Deflectable loop design for a linear lesion ablation apparatus
An apparatus for ablating body tissue, and particularly for creating linear lesions within a chamber of a patient's heart, is provided. The apparatus includes an elongate member having an ablation...
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5891134 |
System and method for applying thermal energy to tissue
An apparatus, system, and method for treating body tissue using controlled application of heat includes a control unit providing electrical power to a bipolar electrode positioned within an...
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5879347 |
Apparatus for controlled thermal treatment of tissue
An apparatus for treating body tissue using controlled application of heat includes an catheter having an expandable device defining a fluid reservoir about the distal end of the catheter. Fluid is...
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5876398 |
Method and apparatus for R-F ablation
An ablation catheter particularly adapted for use in ablation of cardiac tissue. The catheter is provided with an elongated electrode, intended to make contact with tissue to be ablated, in the...
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5871525 |
Steerable ablation catheter system
An antenna assembly has an energy propagating region that is encapsulated in a material having a high dielectric constant for minimizing the loss of energy while having a high thermal conductivity...
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5871523 |
Helically wound radio-frequency emitting electrodes for creating lesions in body tissue
A device for ablating tissue within the body has an element with an energy emitting region helically wound about and along the axis of the element. The element emits energy to create a lesion in...
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5868743 |
Cardiac ablation system with low temperature target site identification
A method of targeting and ablating cardiac tissue wherein an ablation catheter is directed and positioned at a potential ablation site, and is energized to a catheter tip temperature of...
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5865801 |
Multiple compartmented balloon catheter with external pressure sensing
A balloon catheter includes an elongate pliable catheter tubing with a dilatation balloon fixed to the catheter tubing near its distal end. The dilatation balloon includes a first wall for dividing...
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5861021 |
Microwave thermal therapy of cardiac tissue
A method of applying microwave energy to cardiac tissue uses a catheter adapted for insertion into a cardiac chamber and which includes a microwave antenna, a cooling lumen structure, and an...
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5848986 |
Medical probe with electrode guide for transurethral ablation
A medical probe for the treatment by radio frequency ablation of a target volume in tissue of a human having a urethral channel extending into a base of a bladder along a longitudinal axis. The...
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5849028 |
Catheter and method for radiofrequency ablation of cardiac tissue
An electrophysiology catheter suitable for radiofrequency ablation of cardiac tissue comprises an elongate catheter shaft wherein a distal tip section having multiple long electrodes and multiple...
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5843077 |
Minimally invasive apparatus for internal ablation of turbinates with surface cooling
A method and apparatus for ablating at least a portion of a nasal concha. The apparatus includes a catheter having a distal portion with a dimension configured for positioning through a nostril of...
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5843144 |
Method for treating benign prostatic hyperplasia with thermal therapy
A method for treating an individual with diseased prostatic tissue, such as benign prostatic hyperplasia, includes inserting a catheter into a urethra to position a microwave antenna located within...
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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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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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5823197 |
Method for internal ablation of turbinates
A method and apparatus for ablating at least a portion of a nasal concha. The apparatus includes a catheter having a distal portion with a dimension configured for positioning through a nostril of...
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5810803 |
Conformal positioning assembly for microwave ablation catheter
An ablation catheter includes an elongated flexible tubular member adapted to be inserted into a vessel in the body of a patient. A transmission line is disposed within the tubular member and a...
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5807395 |
Method and apparatus for RF ablation and hyperthermia
A methods and apparatuses for ablation or hyperthermic treatment of body tissue are disclosed, wherein the application of radio-frequency ablative or hyperthermic energy is accompanied by the...
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5800494 |
Microwave ablation catheters having antennas with distal fire capabilities
A variety of improved antenna arrangements for ablation catheters and methods for constructing catheter with these antenna arrangements are described. In various apparatus aspects of the invention,...
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5800429 |
Noninvasive apparatus for ablating turbinates
An apparatus is provided for ablating at least a portion of a nasal concha. By ablating at least a portion of a nasal concha, the size of the nasal concha is reduced. The three nasal concha in the...
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5800486 |
Device for transurethral thermal therapy with cooling balloon
An intraurethral catheter includes an microwave antenna and a cooling lumen structure substantially surrounding the antenna. A cooling balloon partially surrounds the cooling lumens on one side of...
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5800484 |
Multiple antenna ablation apparatus with expanded electrodes
An ablation apparatus has an introducer including an introducer lumen, a proximal portion and a distal portion. A handpiece with a proximal portion and a distal portion is coupled to the introducer...
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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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5788692 |
Mapping ablation catheter
A variety of improved ablation catheters and methods for using such catheters are described. In one embodiment, the catheter includes a plurality of longitudinally spaced split electrode bands that...
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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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5782897 |
Microwave heating apparatus for rapid tissue fixation
Microwave heating apparatus for fixating tissue comprises an electrically conductive waveguide structure having opposite first and second walls each of which has opposite first and second ends and...
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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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5779698 |
Angioplasty catheter system and method for making same
An angioplasty catheter for increasing the patency of a body vessel by altering an obstruction in the body vessel includes an elongate shaft having a proximal end and a distal end. At least one...
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5776176 |
Microwave antenna for arterial for arterial microwave applicator
A microwave antenna is insertable into a cardiovascular catheter and is formed from a coaxial cable including an inner conductor and an inner insulator with the inner insulator having a reduced...
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5769846 |
Ablation apparatus for cardiac chambers
An endocardial ablation apparatus, for introduction into a heart chamber formed by a wall, is provides. The ablation apparatus includes an inflatable, flexible porous membrane adapted to receive an...
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5769879 |
Microwave applicator and method of operation
An apparatus and method for non-invasive removal of target tissues is disclosed. The apparatus includes a microwave applicator antenna element array for introducing a plurality of cylindrical,...
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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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5743900 |
Hot tip catheter and method for using the same
A system and method for treating a stenosis or blockage in a bodily fluid passageway is described. The system includes a catheter and a controller for generating radio frequency energy along a pair...
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5741249 |
Anchoring tip assembly for microwave ablation catheter
An ablation catheter with an anchoring tip extension includes an elongated flexible tubular member adapted to be inserted into a vessel in the body of a patient. A transmission line is disposed...
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5728144 |
Steerable coaxial cable systems for cardiac ablation
A coaxial cable assembly has an associated steering mechanism for maneuvering the assembly within the body.
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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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5704355 |
Non-invasive system for breast cancer detection
A system for detecting an incipient tumor in living tissue such as that of a human breast in accordance with differences in relative dielectric characteristics. A generator produces a non-ionizing...
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5702433 |
Kink-resistant steerable catheter assembly for microwave ablation
A kink-resistant steerable catheter assembly suitable for microwave ablation includes a handle, a catheter and a steering control. The catheter has (a) a flexible, torque-transmitting and axially...
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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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5690611 |
Process for the treatment of atrial arrhythima using a catheter guided by shaped giding introducers
A process for the treatment of atrial arrhythmia by use of ablation and/or mapping procedures comprising ablating discrete ablation tracks within the left and right atrium of the heart by use of...
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5683384 |
Multiple antenna ablation apparatus
An ablation apparatus has a multiple antenna device of adjustable length including an adjustable length primary antenna and an adjustable length secondary antenna. The primary antenna has a...
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5683382 |
Microwave antenna catheter
A helical antenna, which is matched to the desired microwave frequency of 915 MHz, comprises a helix having a linear length which is in the range of 74 to 112 mm or a non-zero integer multiple...
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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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5649973 |
Thermotherapy method with tissue cooling
A method for performing thermotherapy treatment of patient prostate tissue, comprising the steps of inserting a thermotherapy probe in a urethral passageway, the probe having a fluid volume...
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5645749 |
Heat pack capable of being recharged by microwave energy
A heat pack including a flexible water-tight plastic bag, saturated sodium acetate solution contained in the plastic bag, and an activator disposed in contact with the saturated sodium acetate...
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5630813 |
Electro-cauterizing dissector and method for facilitating breast implant procedure
An inflatable dissector and method for bluntly dissecting and electro-cauterizing a plane between the anterior chest wall and the overlying pectoralis major muscle to facilitate a breast implant...
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5630961 |
Microwave-activated mixed-powder thermal storage material; and method
A thermal storage composition activated by exposure to microwave energy is provided. The thermal storage composition preferably comprises a mixture of at least two impregnated powders where a first...
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5628771 |
Electromagnetic-wave thermatological device
A thermatological device comprising an applicator and a main body. The applicator has a microwave-applying section, a first temperature sensor and a second temperature sensor. The main body...
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