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RE40868 Refrigeration source for a cryoblation catheter  
A catheter-based system for performing a cryoablation procedure uses a precooler to lower the temperature of a fluid refrigerant to a sub-cool temperature (−40° C.) at a working pressure (400...
7422583 Cryo-surgical apparatus and method of use  
Cryosurgical apparatus includes an elongate cryoprobe having a cooling portion and an electrically conductive first portion in the region of the cooling portion. A removable sheath having an...
7288089 Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation employing tissue protection  
An enhanced method and device are provided to treat atrial fibrillation or inhibit or reduce restenosis following angioplasty or stent placement. A balloon-tipped catheter is disposed in the area...
7255693 Heated catheter used in cryotherapy  
Disclosed is a cryosurgical catheter which is heated in order to prevent its freezing within the lumen of an endoscope. The catheter is to be used with an endoscope to perform cryoablation on an...
7207986 Cooling system  
A cryogenic medical system includes a medical device and a console connectable to the medical device at a connection point. The console controls the temperature of the medical device. The console...
7097641 Catheter with cryogenic and heating ablation  
A catheter includes a cryoablation tip with an electrically-driven ablation assembly for heating tissue. The cryoablation tip may be implemented with a cooling chamber through which a controllably...
7081111 Cryosurgical apparatus and methods  
An apparatus for controlling the temperature of a part of a human or animal body 2 during a cryosurgical procedure is disclosed. The apparatus comprises a radiative energy transmitter 26 for...
7025762 Method and apparatus for cryogenic spray ablation of gastrointestinal mucosa  
A method and apparatus to treat Barrett's tissue, a pre-cancerous condition, by removing the epithelium above the lower esophageal sphincter through cryo-ablation. An endoscope with fiber optics is...
7004936 Refrigeration source for a cryoablation catheter  
A catheter-based system for performing a cryoablation procedure uses a precooler to lower the temperature of a fluid refrigerant to a sub-cool temperature (−40° C.) at a working pressure (400...
6772766 Cryogenic method and apparatus for promoting angiogenesis  
A method of promoting blood vessel growth includes the steps of providing a cryocatheter having a thermally transmission region; placing the cryocatheter proximate an area of tissue to be treated;...
6746445 Cryoblation catheter handle  
A cryocatheter system includes a first handle portion having a proximal end, a distal end, a first fluid flow path, and a second fluid flow path; a second handle portion having a proximal end, a...
6562030 Heater control of cryocatheter tip temperature  
A cryocatheter includes a catheter body defining a coolant flow path, a catheter tip exposed to the coolant flow path, and a heating element associated with the catheter tip. The heating element...
6551309 Dual action cryoprobe and methods of using the same  
Cryosurgery is performed with cryosurgical probe tips either contacting the tissue or by tips which deliver refrigerant onto the tissue. A dual action probe tip can be used to perform either...
6546932 Cryogenic method and apparatus for promoting angiogenesis  
A method of promoting blood vessel growth includes the steps of providing a cryocatheter having a thermally transmission region; placing the cryocatheter proximate an area of tissue to be treated;...
6505629 Cryosurgical system with protective warming feature  
A system and method for performing cryosurgery of the prostate while protecting surrounding tissue. Cryosurgical probes are provided with argon gas for cooling and with helium for warming. Probes...
6485484 Hair removal device  
A hair removal device ( 22 ) includes a cooling surface ( 34 ) which is used to contact the skin ( 6 ) prior to exposure to hair tissue-damaging laser light ( 74 ) passing from a radiation source (...
6468269 Cryogenic system, especially for performing cryosurgical surgery  
The invention relates to a cryogenic system which is provided for performing cryosurgical interventions in the area of human and veterinary medicine, especially for treating tumors. The inventive...
6451012 Cryosurgical method for endometrial ablation  
A cryosurgical probe incorporating various forms of auxiliary instrumentation mounted on the catheter or conductive tip, such as a temperature sensor, a heater, an ultrasonic transducer, or an...
6283959 Endovascular cryotreatment catheter  
A catheter is attached to an elongated catheter body adapted for endovascular insertion with a balloon assembly at its distal end. Coolant injected through the catheter body may, in different...
6270493 Cryoablation structure  
A cryocatheter for treatment of tissue includes a coolant line communicating with a cryochamber having a coolant receiving interior and a thermally conductive wall for contacting and conductively...
6182666 Cryosurgical probe and method for uterine ablation  
A cryosurgical probe incorporating various forms of auxiliary instrumentation mounted on the catheter or conductive tip, such as a temperature sensor, a heater, an ultrasonic transducer, or an...
6179831 Method of cryoablating benign prostate hyperplasia  
A method for treating benign prostate hyperplasia is provided. The method is effected by (a) inserting a cystoscope into a prostatic urethra portion of a urethra of a patient having benign prostate...
6151901 Miniature mixed gas refrigeration system  
A miniature mixed gas refrigeration system is disclosed, having a coaxial catheter with an inner high pressure supply lumen and an outer low pressure return lumen. The gas mixture is pressurized by...
6074412 Cryoprobe  
Cryocoolers for use in cryosurgery and other applications comprising dual finned tube helical coil heat exchangers. The size and shape of iceballs created by the probes is controlled by the...
5992158 Cryosurgical instrument  
A cryosurgical instrument comprises a cooling tip operable to be cooled by a flow of a cryogenic fluid within the tip; and a fluid transfer chamber having a fluid inlet for receiving cryogenic...
5860971 Thawing of cryosurgical apparatus  
Apparatus is described for feeding a cryosurgical device by passing a liquid cryogen (e.g. liquid nitrogen) through the device to produce cooling by vaporization, and to enable thawing of the...
5800488 Cryoprobe with warming feature  
Cryocoolers for use in cryosurgery and other applications comprising finned tube helical coil heat exchangers and warming gas flow through a warming gas supply line fitted Joule-Thomson nozzle. The...
5733280 Cryogenic epicardial mapping and ablation  
The disclosure relates generally to cryogenic techniques the mapping and ablation of arrhythmias or tachycardia in atrial or ventricle heart muscles and, more particularly, to an epicardial...
5667505 Method of carrying out cryosurgical interventions and device for this method  
A method of carrying out cryosurgical interventions includes cooling biological tissue at a rate of at least 180 K/min to a temperature of -190° C. to -160° C., subsequently rewarming the...
5658276 Heated cryosurgical probe  
Cryosurgical probe tips (20,66) are in metallurgical contact with coils of insulated resistor wire (27, 27a) with one end connected through copper wire (75) to a pin (32) insertable into a switch...
5632743 Method of thawing cryosurgical apparatus  
A method of thawing of cryosurgical apparatus, and in particular a cryosurgical probe, subsequent to a freezing process involves the interuption of the cryogen supply to the probe followed by the...
5603221 Multiprobe surgical cryogenic apparatus  
A cryogenic surgical apparatus comprises: a) a plurality of probes, each having a contact surface, each of which probes is suitable for creating fast temperature changes at the said contact...
5520682 Cryosurgical instrument with vent means and method using same  
A closed end surgical cryoprobe instrument may have a probe shaft diameter of 3 millimeters or less and can achieve and maintain freezing zone temperatures close to that of the liquid cryogenic...
5474538 Apparatus for the warming of fluids in medical applications  
The apparatus for the heating of fluids exhibits a cylindrical heat exchanging body 10 which exhibits an outer groove 18 for the insertion of a conduit 20 through which the fluid is flowing. The...
5452582 Cryo-probe  
In the cryo-probe, refrigerant is furnished from a high pressure, room temperature supply. Insulation of the refrigerant lines is unnecessary. Refrigerant flows through a pre-cooling heat exchanger...
5275595 Cryosurgical instrument  
A closed cycle cryosurgical instrument having a mixed gas assembly that is mounted in a housing and also having a cryosurgical probe unit. By using special (or certain) gas mixtures as opposed to...
5190880 Tube known as straw, for cryogenically preserving biological samples  
The tube, known as a straw, according to the invention, is conventional in its form, and is constituted by a rectilinear length of transparent tubular envelope. In the vicinity of a first end, the...
5139496 Ultrasonic freeze ablation catheters and probes  
Probes for medical surgery and flexible catheters for internal tissue ablation in which the tissue cells are frozen and deadened and yet extreme supercooling of tissue below the tissues' melting...
4946460 Apparatus for cryosurgery  
An apparatus for cryosurgery having the ability to precisely control the rate and degree of freezing of diseased tissue by means of a cryoprobe having a plurality of removable cryotips, and a...
4823790 Cryogenic-and-ultrasonic scalpel  
A cryogenic-and-ultrasonic scalpel includes a body, a source of ultrasonic vibrations positioned within the body, a hollow, frusto conical transformer connected to the source of ultrasonic...
4377168 Cryosurgical instrument  
A cryosurgical instrument having a cooling mode and a rapid warming or defrost mode is provided with a first conduit through which refrigerant gas is metered to undergo a Joule-Thomson or...
4345598 Cryogenic apparatus for surgery  
Cryogenic apparatus for surgery operating with liquid cryogenic medium in a closed circuit, provided with an applicator and porous heat exchanger particularly adapted for tumor surgery, operating...
4280499 Oryotherapy apparatus  
Cryotherapy apparatus for effecting localised cooling of body tissue comprises an intensively cooled hollow probe extending from a handle. Cooling of the probe is effected by refrigerant passed...
4202336 Cauterizing probes for cryosurgery  
A heating coil close to the freezing tip of a cryosurgical probe operates through a highly heat conductive portion of the probe wall so as to cauterize previously frozen tissues. The liquid...
3971383 Cryogenic surgical instrument  
To insulate the supply lines to an operating tip of a cryogenic surgical instrument, a coaxial assembly of tubes is provided, the inner one being connected to a supply of cryogenic liquid, such as...
3948269 Cryomedical device  
A cryomedical device, comprises a probe which is adapted to be positioned to rapidly cool a body portion of a patient, and which is connected to a coolant supply which supplies coolant thereto at a...
3934589 Surgical instrument for sterilizing women by ligature of tubes  
A surgical instrument for sterilizing women by the ligation of the fallopian tubes comprises a probe having tongs with gripper means for engaging the tubes and means for directing a coolant to the...
3911924 Cryoprobe  
A cryoprobe for treating biological tissues, includes a probe having a probe contacting surface which is cooled by cooling means circulated through a probe housing and directed into an evaporation...
3901241 Disposable cryosurgical instrument  
A cryosurgical instrument for use in a variety of surgical procedures is provided with a different tip or probe, depending upon the surgical technique contemplated. The instrument has a conical and...
3823575 CRYOGENIC APPARATUS  
A cryogenic apparatus is disclosed for use in biological sciences having automated controls and using the Joule-Thomson effect. A supply of gas flows to a control unit which includes a solenoid gas...
Matches 1 - 50 out of 60 1 2 >