Abstract: A medical device for treating gingivae or reducing the mass of cellular tissue, wherein an elongated tubular element comprises at least one electrode disposed of at its distal section, the energy generating means, and means for generating vibration at the distal section of the tubular element to effect the heat treatment and the vibrational massage therapy for the targeted tissue.

Abstract: A method using an ablation apparatus for treating tissues or atherosclerosis on a patient having a pre-implanted medical stent, the method including applying RF energy to the tissue lesion site underlying the stent for therapeutic purposes at different energy levels, different post-procedure times, and different modes of energy delivery.

Abstract: A medical device for treating the hemorrhoid or airway obstructions by reducing the mass of cellular tissues, wherein an elongate tubular shaft includes at least one ultrasonic transducer means disposed at its distal section of the shaft and facing one side of the shaft, an ultrasonic energy generating means, and a means for generating vibration at the distal section of the tubular element to effect the ablation having an additional vibrational massage therapy for the tissues.

Abstract: An ablation apparatus system for treating tissues or atherosclerosis on a patient having a stent or a metallic implant, wherein said stent or metallic implant comprises a coating layer including a carrier composed of a biocompatible material and having dispersed therein a radioactive substance, the ablation apparatus system comprising an electrical conducting wire that is coupled to an external radiofrequency generator for delivering the radiofrequency current to the stent or the metallic implant for the purposes of thermally enhanced irradiation capability for tissue therapeutic treatment.

Abstract: An ablation apparatus for treating tissues of a patient, the ablation apparatus including a catheter shaft, the catheter shaft including a shaft distal section, a shaft distal end, a shaft proximal end, and at least one lumen extending between the shaft proximal end and the shaft distal end; a handle attached to the shaft proximal end, wherein the handle has a cavity; electrode means mounted at the shaft distal section for emitting energy to ablate tissue, wherein the electrode means includes a plurality of surface sections, each surface section having different surface current resistance for transmitting different electrical current density through said surface section; and RF current generating means for generating RF current for delivering to the electrode means through at least one electrical conductor, wherein the at least one electrical conductor is coupled to the electrode means.

Abstract: An ablation apparatus for treating tissues, tubular organs, or atherosclerosis of a blood vessel of a patient having an implanted medical stent, the ablation apparatus comprising a catheter shaft having a retracable preshaped electrode means at the distal end of the catheter shaft, the electrode means having a plurality of expandable/collapsible wire members adapted for contacting the wire members to the stent and applying RF current to treat the tissues underlying the stent for therapeutic purposes.

Abstract: An ablation catheter system for treating tissues or atherosclerotic tissues of a patient having a retractable metallic element means comprising a deployable close loop with a running noose at its end, the ablation catheter providing RF therapy to the tissues through the retractable metallic elements means and optional fluid medicine for therapeutic purposes.

Abstract: An ablation balloon catheter for treating tissues or atherosclerosis on a patient having a prior angioplasty procedure, the balloon catheter comprising a conductive elastomer electrode means which is coated onto a balloon surface and is connected to a radiofrequency current source to supply radiofrequency thermal therapy to the tissue for therapeutic ablation purposes.

Abstract: An ablation apparatus system for treating tissues in a patient, the ablation apparatus comprising temperature sensing means for measuring a temperature, wherein said temperature sensing means comprises a temperature sensing probe and at least one temperature sensing wire secured to the temperature sensing probe; force measuring means for measuring force exerted onto the temperature sensing probe by a tissue; and RF current generating means for generating RF current, wherein the RF current generating means is connected to and controlled by the temperature sensing means and force measuring means, adapted for supplying RF current to the temperature sensing probe as an electrode for tissue treatment.

Abstract: A medical device for treating canker sores, wherein flexible RF electrode means having a distal surface plate permeable to medicament comprises therapeutic agent delivery means, is inserted into the mouth of a patient; the electrode means being placed against and/or surrounding the canker sore region; RF energy is applied for a predetermined time and temperature to the canker sore tissue through the electrode means to cause internal lesions; and delivering a heated therapeutic agent to heal the tissues thereafter for a pre-determined duration.

Abstract: An ablation apparatus system for treating tissues or obstructions in vessels in the body includes a rotatable metallic member which is guided to the obstruction in a reduced diameter configuration, expanded and rotated to contact the tissue, optionally to remove the obstruction, and a RF current is applied to the tissue-contacting rotatable metallic member or the expanded stent for treating the tissues.

Abstract: A medical device for treating the uvula or airway obstructions by reducing the mass of cellular tissues, wherein a plurality of elongate tubular shafts comprises at least one ultrasonic transducer means disposed at its distal end portion of each shaft, an ultrasonic energy generating means, and a means for generating vibration at the distal section of the tubular element to effect the ablation having an additional vibrational massage therapy for the tissues.

Abstract: An intraluminal medical device for treating tissues in a patient, the device comprising an elongate radially expandable tubular stent having an interior luminal surface and an opposite exterior surface extending along a longitudinal stent axis; the interior luminal surface, the exterior surface, and/or an entire surface of the expandable tubular stent having fluorine-containing coating to render the surface biocompatible and/or hemocompatible.

Abstract: A retractable intraluminal medical device for treating tissues in a patient, the device comprising an elongate radially expandable/retractable tubular stent having an interior luminal portion and an opposite exterior portion extending along a longitudinal stent axis; a first of the plurality construction materials being a shape-memory Nitinol, the shape-memory Nitinol having a preshape and a shape transition temperature, wherein the shape-memory Nitinol retracts to its preshape and causes the expandable tubular stent to collapse when the shape-memory Nitinol is heated to above the shape transition temperature at a retracted state.

Abstract: An ablation apparatus for treating tissues or atherosclerosis on a patient having a prior angioplasty procedure, the ablation apparatus comprising a rapid exchange stented balloon catheter having a reversibly collapsible stent secureed around the balloon and RF energy applied through the deployed stent to the tissue underlying the stent for therapeutic ablation purposes.

Abstract: A medical device for treating the hemorrhoid, or reducing the dilatation of cellular tissues, wherein an elongate tubular shaft comprises at least one coil loop electrode means disposed at its distal end portion of the shaft, a RF energy generating means, and a means for pressing the electrode means against the target tissue to effect the ablation and the pressure therapy for the hemorrhoid tissues.

Abstract: An ablation device for treating atherosclerotic tissues of a patient, the ablation device comprising a catheter shaft and an inner catheter, the inner catheter having a deployable electrode means, wherein the deployable electrode means comprises a plurality of preshaped expandable metallic basket members at the distal end of the inner catheter adapted to contact the atherosclerotic tissues and to apply RF current to the tissues for therapeutic purposes. Alternately, a plurality of expandable metallic basket members are wrapped onto and around a balloon of an ablation device system.

Abstract: 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 its distal end portion of the shaft to form a cylindrical void and adapted to encircle the tubular cellular tissues with a RF energy therapy, and a means for pressing the wire means against the target tissue to effect the ablation and the pressure therapy for the tubular tissues.

Abstract: A dilatation catheter includes an inflation balloon having a bifurcated inflation profile at its distal portion. The balloon is securably attached on a guidewire, wherein the guidewire has a two-head distal region with two guidewire distal ends, a first guidewire distal end being capable of advancing into a first vessel while a second guidewire distal end being capable of advancing into a second branch vessel. The bifurcated balloon is to be inflated so that the diameters of the two stenotic vessels at the bifurcation region are enlarged simultaneously. In an alternate embodiment, a dilatation catheter comprising an inflatable bifurcated balloon, wherein a deployable bifurcated stent is wrapped around and on the bifurcated balloon of a dilatation catheter.

Abstract: A medical ablation device system for treating endometrosis, gingivae or reducing the mass of cellular tissue, wherein an elongate tubular element comprises an electrode means disposed at its distal section, the energy generating means, and means for generating rotational sweeping force at the distal section of the tubular element to effect the heat treatment and the rotational sweeping massage therapy for the target tissue.