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6053937 |
Multiple electrode ablation apparatus and method with cooling element
An ablation apparatus has an introducer including an introducer lumen, a proximal portion and a distal portion. Two or more electrodes are at least partially positionable in the introducer lumen....
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6053909 |
Ionothermal delivery system and technique for medical procedures
An Rf energy applicator with a working end that carries a bi-polar Rf electrode system for creating a Rf-tissue interaction or ionothermal effect in subsurface tissue (a first ionothermal system)...
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6051018 |
Hyperthermia apparatus
A hyperthermia apparatus, suitable for transurethral application, has an energy radiating element comprising a leaky-wave antenna. The leaky wave antenna radiation pattern is characterized by a...
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6048333 |
Apparatus for treating aneurysms with a thermal source
Apparatus for treating an aneurysm in a vessel that isolates a volume around the aneurysm, evacuates that volume and heats the aneurysmal wall. A catheter includes one or more inflatable balloons...
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6047215 |
Method and apparatus for electromagnetically assisted liposuction
An improved method and apparatus for facilitating removal of fat from obese, or lipodystrophic patients, by external application of electromagnetic energy. After infiltrating the proposed zone with...
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6032674 |
Systems and methods for myocardial revascularization
A method for transmyocardial revascularization of the heart of a patient includes positioning an active electrode surface in close proximity to a target site on the wall of a patient's heart, and...
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6032077 |
Ablation catheter with electrical coupling via foam drenched with a conductive fluid
An ablation catheter for ablating tissue, such as endocardial tissue. The ablation catheter includes a foam tip with an electrode embedded therein. Conductive fluid, such as saline solution, is...
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6030380 |
Radio frequency transmyocardial revascularization
An RF activated catheter apparatus for performing transmyocardial revascularization. The catheter apparatus including an elongate catheter shaft having proximal and distal ends, the distal end...
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6032078 |
Voltage controlled variable tuning antenna
A catheter shaft carries a coaxial cable, the terminal end of which contains a dipole antenna with opposing first and second helical elements. The first and second helical elements originate from a...
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6029091 |
Catheter system having lattice electrodes
A catheter system comprising a delivery catheter and an inner catheter, wherein the inner catheter is deployable and has a plurality of electrodes on the lattices of a trellis fixture. During a...
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6024742 |
Ablation apparatus for treating hemorrhoids
A medical apparatus for treating the hemorrhoid, or reducing the dilatation of tubular cellular tissues, wherein an elongate tubular shaft comprises at least one extendible wire means disposed at...
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6016811 |
Method of using a microwave ablation catheter with a loop configuration
A catheter which may be configured as a loop during an ablation procedure, and a method of use for such a catheter, are disclosed. According to one aspect of the present invention, a method for...
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6016452 |
Dynamic heating method and radio frequency thermal treatment
A method and system for the delivery of radiofrequency energy to the tissue, particularly, the prostate, to alleviate the symptoms of BPH is disclosed. The system incorporates a bipolar or...
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6015407 |
Combination linear ablation and cooled tip RF catheters
An apparatus for ablating body tissue is provided that is particularly adapted for creating both linear and point lesions in the endocardium. The apparatus comprises an elongate tubular member...
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6010500 |
Telescoping apparatus and method for linear lesion ablation
A catheter device for creating linear lesions in endocardial tissue or other body tissue is described. The catheter includes an inner shaft telescopically received within an outer shaft. The inner...
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6007570 |
Apparatus with functional element for performing function upon intervertebral discs
A percutaneous method of repairing a fissure in the annulus pulposus comprises placing an energy source adjacent to the fissure and providing sufficient energy to the fissure to raise the...
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6009351 |
System and method for transurethral heating with rectal cooling
A system and method for treating a prostate of a patient is disclosed. The system includes a rectal probe for insertion into a rectum of the patient. A fluid supply system connected to the rectal...
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6001095 |
Catheter system having closely spaced distal bipolar electrodes
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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6002968 |
Uterine treatment apparatus
An apparatus to treat a uterus includes a deployable member configured to be positioned in a uterine cavity in at least a partially deployed state to define a microwave chamber in an interior of...
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5997536 |
Heart catheter with an electrode on a spreadable device
The heart catheter has at least one electrode pole, which is arranged on a spreadable device at the distal end of a catheter shaft. The device comprises at least two struts manufactured from an...
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5997532 |
Ablation catheter tip with a buffer layer covering the electrode
An ablative catheter assembly whose electrode is completely covered by a buffer layer. The buffer layer prevents areas of high current density at the surface of the catheter tip, which helps to...
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5992419 |
Method employing a tissue-heating balloon catheter to produce a "biological stent" in an orifice or vessel of a patient's body
Disclosed are three embodiments of a method for determining the formation of a "biological stent" for permanently maintaining the widened bore portion of the urethra of a male patient undergoing...
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5992418 |
Catheter system having safety means and methods thereof
The method for using 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...
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5989248 |
Medical device and methods for treating tissues
A medical device for treating the uvula or reducing the mass of cellular tissues, wherein a plurality of elongate tubular shafts comprises at least one electrode disposed at its distal end portion...
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5987360 |
Axial preferential thermal therapy
A device for prostate treatment is inserted into a prostatic portion of an urethra and connected to an energy source. Energy is delivered to the prostate from the device. The amount of energy...
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5983126 |
Catheter location 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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5980563 |
Ablation apparatus and methods for treating atherosclerosis
An ablation apparatus for treating tissues or atherosclerosis on a patient having a pre-implanted medical stent, the ablation apparatus including an elongate tubular shaft having a deployable...
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5972026 |
Bronchial stenter having diametrically adjustable electrodes
A device and method for treating collapsed bronchial tubes found in patients with chronic obstructive pulmonary disease and asthma are provided. The device delivers energy so that the tissue is...
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5971980 |
System for controlling the energy delivered to a patient for ablation
A power control system and method controls a power generator to vary the duty cycle of a power output provided to a delivery instrument for delivering that power to a site in a patient for...
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5968041 |
Directable thermal energy delivery apparatus
A cell necrosis apparatus includes an introducer with a tissue piercing distal end. An RF electrode device includes a first RF electrode with a tissue piercing distal end, a second RF electrode...
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5967976 |
Apparatus and methods for procedures related to the electrophysiology of the heart
Methods and apparatus are disclosed for use in procedures related to the electrophysiology of the heart, such as identifying or evaluating the electrical activity of the heart, diagnosing and/or...
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5964753 |
Integrated cardiac mapping and ablation probe
A probe for cardiac diagnosis and/or treatment has a catheter tube. The distal end of the catheter tube carries first and second electrode elements. The probe includes a mechanism for steering the...
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5957969 |
Tunable microwave ablation catheter system and method
A tunable microwave ablation catheter system is disclosed which matches the impedance of its power supply with the transmission line to minimize reflected power and optimize energy delivery to...
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5957920 |
Medical instruments and techniques for treatment of urinary incontinence
A novel therapeutic instrument and technique for delivering thermal energy to a target tissue volume or site in an interior of a patient's body in a "non-invasive" manner for medical purposes, such...
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5954762 |
Computer-controlled servo-mechanism for positioning corona discharge beam applicator
A computer-controlled, servo-mechanism associated with a system for treating a subject having a neuro-cerebral disorder characterized by internal lesions, the system including an applicator that...
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5954718 |
Myoma removal technique and associated surgical device
In a method for removing a myoma, an antenna electrode is placed into a patient so that the antenna electrode is in contact with the patient's uterus. A cutting electrode is also inserted into the...
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5948011 |
Method for controlled contraction of collagen tissue via non-continuous energy delivery
A method for applying radiant energy through the skin to underlying collagen tissue without substantially modifying melanocytes and other epithelial cells in the epidermis by delivering...
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5944716 |
Radio frequency transmyocardial revascularization corer
An RF activated catheter apparatus for performing transmyocardial revascularization. The catheter apparatus including an elongate catheter shaft having proximal and distal ends, the distal end...
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5944749 |
X-ray needle providing heating with microwave energy
Electrons moving in a first direction are concentrated (e.g. magnetically) in a beam within a first tube. A converter converts the electrons to x-rays for movement to a particular position (e.g....
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5938658 |
Device and methods for treating canker sores by RF ablation
A medical ablation device and methods for treating canker sores wherein a flexible RF electrode comprising a fluid delivery capability is inserted into the mouth; the RF electrode being placed...
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5938659 |
Catheter system having cooled multiple-needle electrode and methods thereof
A method for operating a steerable ablation catheter having at least one multiple-needle electrode at the tip section of an inner catheter within a heart chamber, wherein the ablation catheter...
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5931860 |
Benign prostatic hyperplasia treatment catheter with urethral cooling
A system for treatment of benign prostatic hyperplasia within intraprostatic tissue surrounding a urethra is disclosed. The system includes an intraurethral catheter having an intraurethral...
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5928224 |
Device for the treatment of damaged heart valve leaflets and methods of using the device
A device and method for treating infected or damaged heart valve tissue by selectively heating, applying pressure, or both to the heart valve tissue to sterilize any infected portion of the tissue,...
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5928229 |
Tumor ablation apparatus
An ablation apparatus has a multiple antenna device with a primary antenna and a secondary antenna positionable in a lumen of the primary antenna. The secondary antenna is at least partially...
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5921982 |
Systems and methods for ablating body tissue
A medical probe device for contacting tissue within the body a catheter tube having a control end and a probe end. The probe end includes a housing having a port. An element is located within the...
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5922013 |
Microwave body heating system
A microwave body heating system uses one or more focused beams of microwave energy. A fan beam or transversely scanned beam is directed to a narrow transverse section of a subject's body. The...
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5919218 |
Cartridge for in-line microwave warming apparatus
A fluid flow cartridge for seating in an opening into a microwave heating cavity comprises a tubing support having an electrically conductive surface dimensioned to substantially close that opening...
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5916241 |
Device and method for asymmetrical thermal therapy with helical dipole microwave antenna
An intraurethral, Foley-type catheter shaft contains a microwave antenna capable of generating a cylindrically symmetrical thermal pattern, within which temperatures are capable of exceeding 45°...
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5914255 |
Temperature shock method and apparatus
A method for treating a biological organism in a medium, comprising heating the medium containing the organism by a temperature of at least about 2° C. at a rate which exceeds a relaxation rate of...
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5904709 |
Microwave treatment for cardiac arrhythmias
Method and apparatus are provided for propagating microwave energy into heart tissues to produce a desired temperature profile therein at tissue depths sufficient for thermally ablating...
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