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8109894 |
Indwelling heat exchange catheter and method of using same
A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its...
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8105264 |
Indwelling heat exchange catheter and method of using same
A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its...
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8105262 |
Indwelling heat exchange catheter and method of using same
A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its...
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8105263 |
Indwelling heat exchange catheter and method of using same
A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its...
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8080005 |
Closed loop cryosurgical pressure and flow regulated system
A system for selectively cooling and warming a cryosurgical instrument using a dual phase cryogen, including: two sources of the cryogen, a first source storing liquid phase cryogen and having a...
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7998137 |
Subdermal cryogenic remodeling of muscles, nerves, connective tissue, and/or adipose tissue (fat)
Devices, systems, and methods treat cosmetic defects, and often apply cooling with at least one tissue-penetrating probe inserted through of the skin of a patient. The cooling may remodel one or...
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7938822 |
Heating and cooling of cryosurgical instrument using a single cryogen
A cryosurgical system featuring both cooling and heating utilizing a single type of cryogen but from two different sources. The liquid cryogen cools the tip of a cryosurgical instrument in the...
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7862558 |
Subdermal cryogenic remodeling of muscles, nerves, connective tissue, and/or adipose tissue (fat)
Devices, systems, and methods treat cosmetic defects, and often apply cooling with at least one tissue-penetrating probe inserted through of the skin of a patient. The cooling may remodel one or...
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7857781 |
Indwelling heat exchange catheter and method of using same
A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its...
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7850683 |
Subdermal cryogenic remodeling of muscles, nerves, connective tissue, and/or adipose tissue (fat)
Devices, systems, and methods treat cosmetic defects, and often apply cooling with at least one tissue-penetrating probe inserted through of the skin of a patient. The cooling may remodel one or...
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7846154 |
Gas-heated gas-cooled cryoprobe utilizing electrical heating and a single gas source
The present invention is of device, system, and method for cooling and heating an operating tip of a cryoprobe using a single source of compressed gas. Cooling of the operating tip is effected by...
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7780657 |
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...
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7713266 |
Subdermal cryogenic remodeling of muscles, nerves, connective tissue, and/or adipose tissue (fat)
Devices, systems, and methods treat cosmetic defects, and often apply cooling with at least one tissue-penetrating probe inserted through of the skin of a patient. The cooling may remodel one or...
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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 ps...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ps...
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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;...
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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...
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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...
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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;...
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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...
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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 (36)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 b...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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