Entries |
Document | Title | Date |
20080255552 | Fast Fibroadenoma Treatment System and method - A method of treating fibroadenomas with optimized freezing periods at a single freezing temperature and minimal thawing time between freezing periods, and a system for accomplishing the method. | 10-16-2008 |
20080306475 | CRYO-APPLICATOR CROSS-SECTION CONFIGURATION - A configuration for a cryo-catheter which optimizes both the catheter's outer diameter and the size of the catheter's internal refrigerant flow path is described. Specifically, the inner dimensions of the cryo-catheter are configured to accommodate a pre-selected flow of refrigerant into the catheter's distal tip, and a return flow of refrigerant from the distal tip. The return flow is established in the void spaces between a refrigerant supply line and the inner wall of the catheter body. The available void space varies along the catheter length and depends on the presence/absence of various catheter accessories (i.e. pull wires, pressure tubes, etc.) which typically only extend through a portion of the catheter length. The disclosed configuration ensures that the cryo-catheter does not operate in a refrigerant limited condition, maintains the refrigerant as a liquid in the supply tube, and maintains the return line pressure at about 1 atmosphere. | 12-11-2008 |
20080319433 | Cryosurgical Device With a Probe Coupling Formed From the Socket and the Plug of Cryoprobes - A cryosurgical device, with a control for the supply and/or removal of a coolant gas to a cryoprobe via a return flow or a supply flow. The device has at least one socket for the attachment of a rigid cryoprobe and a flexible cryoprobe. The socket and the plugs of the cryoprobes each form probe couplings. The configuration of the cryosurgical device allows both rigid and flexible cryoprobes to be automatically connected to the appropriate return flow conduit, independently of the level of knowledge of operating personnel. | 12-25-2008 |
20090043297 | CRYOGENIC SYSTEM - A cryosurgical system and method for supplying cryogen to a probe. The system including a container filled with cryogen and having bellows of a pump submerged within said cryogen. Conduits fluidly interconnect the bellows and a probe that is outside the container to permit the cryogen to be forced from the bellows to the probe upon activation of pump. A pressure relief valve is fluidly coupled to the conduits and positioned between the bellows and the probe. After initially forcing cryogen to the probe at a pressure that establishes a colligative-based sub-cooling of the liquid cryogen, the pressure relief valve is activated to lower the pressure of the cryogen to a running pressure. | 02-12-2009 |
20090157065 | CRYOSURGICAL INSTRUMENT AND ITS ACCESSORY SYSTEM - The invention proposes a cryosurgical instrument and its accessory system operating on the base of a refrigerant evaporation. The invention comprises combination of some technical solutions. Flow in a central lumen of the cryosurgical instrument has oscillating character; the refrigerant is provided on the internal surface of the distal cryotip in the form of separated portions. 2. The internal surface of the distal cryotip of the cryosurgical instrument is covered by a porous coating, which soaks completely one portion of the refrigerant. 3. Vapors obtained as a result of the refrigerant boiling on the porous coating of the cryotip are removed through the central lumen into the atmosphere. Combination of these technical solutions allows to construct a safely cryosurgical instrument with high freezing power and small outer diameter. The proposed cryosurgical instrument may be designed as a flexible cryocatheter or as a rigid cryoprobe. | 06-18-2009 |
20090318913 | REFRIGERATION SOURCE FOR A CRYOABLATION CATHETER - An apparatus and method for automatic operation of a refrigeration system to provide refrigeration power to a catheter for tissue ablation or mapping. The primary refrigeration system can be open loop or closed loop, and a precool loop will typically be closed loop. Equipment and procedures are disclosed for bringing the system to the desired operational state, for controlling the operation by controlling refrigerant flow rate, for performing safety checks, and for achieving safe shutdown. The 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 psi). The sub-cooled fluid is then introduced into a supply line of the catheter. Upon outflow of the primary fluid from the supply line, and into a tip section of the catheter, the fluid refrigerant boils at an outflow pressure of approximately one atmosphere, at a temperature of about −88° C. In operation, the working pressure is computer controlled to obtain an appropriate outflow pressure for the coldest possible temperature in the tip section. | 12-24-2009 |
20100057067 | MODULAR PULSED PRESSURE DEVICE FOR THE TRANSPORT OF LIQUID CRYOGEN TO A CRYOPROBE - A cryogenic medical device for delivery of subcooled liquid cryogen to various configurations of cryoprobes is designed for the treatment of damaged, diseased, cancerous or other unwanted tissues. The device is a closed or semi-closed system in which the liquid cryogen is contained in both the supply and return stages. The device is capable of generating cryogen to a supercritical state and may be utilized in any rapid cooling systems. As designed, the device comprises a number of parts including a vacuum insulated outer dewar, submersible cryogen pump, baffled linear heat exchanger, multiple pressurization cartridges, a return chamber, and a series of valves to control the flow of the liquid cryogen. The cryogenic medical device promotes the subcooling to any external cryogenic instrument. | 03-04-2010 |
20100069901 | LIQUID NITROGEN CRYOSURGICAL APPARATUS WITH A SET OF SUWALSKI CARDIAC SURGERY CRYOPROBES - The liquid nitrogen cryosurgical apparatus with a set of Suwalski cardiac surgery cryoprobes comprises of the liquid nitrogen container ( | 03-18-2010 |
20100274237 | COOLING NEEDLE PROBE AND COOLING SYSTEM - To provide a cooling needle probe and cooling system which can accurately cool a minute region. A cooling needle probe | 10-28-2010 |
20100280507 | CRYOABLATION SYSTEM HAVING DOCKING STATION FOR CHARGING CRYOGEN CONTAINERS AND RELATED METHOD - A cryoablation system includes thermally insulated containers for holding liquid refrigerant. The containers are placed in a docking station that charges the containers with a liquid refrigerant at a cryogenic temperature suitable for carrying out a surgical procedure. The charged containers are detachably connectable with an inlet line of a cryoablation probe. When the cryoprobe is activated, the chilled liquid refrigerant is transported from a delivery container, through the cryoprobe, and to a recovery container. The recovery container is preferably identical in design to the delivery container. The refilled recovery container is then placed in the docking station to charge. In another embodiment, a cartridge includes a delivery container and recovery container combined as a single unit. Methods are also described. | 11-04-2010 |
20110015624 | CRYOSURGICAL INSTRUMENT INSULATING SYSTEM - A device, system and method for controlling the temperature differential between the medium within the cryosurgical instrument and the external temperature of the shaft, apart from at the cryotip itself, uses a fluid medium supplied within an internal space between the shaft and an intermediate lumen positioned between the shaft and a central feeding lumen of the cryosurgical instrument. The temperature of the fluid medium is controlled to provide control of the temperature differential. | 01-20-2011 |
20110022040 | CRYOSURGICAL INSTRUMENT - The present invention relates to a cryosurgical instrument, comprising a cryoprobe, having a line system through which a compressed cooling fluid flows, particularly a cooling gas, for cooling at least part of the cryoprobe, wherein the line system has an expansion channel having a line cross-section that is successively enlarged in the flow direction across a predetermined length such that the compressed cooling gas successively relaxes on the flow path thereof through the expansion channel beyond a predetermined length while simultaneously cooling off, at least partially. | 01-27-2011 |
20110054453 | CRYOTREATMENT DEVICE USING A SUPERCRITICAL GAS - A method of cryogenically treating a tissue region is provided, including positioning a treatment region of a medical device proximate the tissue region; transferring coolant in a substantially liquid phase from a coolant reservoir to a subcooler; transitioning the coolant from the liquid phase into a supercritical state; transferring the supercritical coolant to the treatment region; changing the coolant from the supercritical state to at least one of a liquid phase and a gaseous phase at the treatment region; ablating the tissue region; and evacuating coolant from the treatment region of the medical device. | 03-03-2011 |
20110082454 | Cryosurgical System - A cryosurgical system using a low-pressure liquid nitrogen supply, which requires only 0.5 to 15 bar of pressure to provide adequate cooling power for treatment of typical breast lesions. The pressure may be provided by supplying lightly pressurized air into the dewar, by heating a small portion of the nitrogen in the dewar, or with a small low pressure pump. | 04-07-2011 |
20110087206 | CRYOSURGICAL DEVICE FOR OPERATING CRYOPROBES, METHOD FOR OPERATING A CRYOPROBE - A cryosurgical apparatus capable of operating both a first cryoprobe with a pressure-resistant return run and a second cryoprobe with an unpressurized return run. The apparatus has a first mode for operating the first cryoprobe and a second mode for operating the second cryoprobe. The apparatus includes a controller, a fluid source for providing a fluid for cooling the cryoprobes by of the Joule-Thomson effect, at least two cryoprobe connections one of which is connected to the first and second cryoprobe in the first and second mode, respectively, and a pressure-setting device with at least one proportional valve. The pressure-setting device can regulate, in the first and second modes, the pressure ratio of the admission run to the return run of the cryoprobe and the pressure in the admission run of the cryoprobe, respectively. The controller controls the cooling power of the cryoprobes by way of setting the proportional valve. | 04-14-2011 |
20110125142 | CRYOSURGICAL PROBE WITH VACUUM INSULATION TUBE ASSEMBLY - A vacuum insulation tube assembly which is utilized as a component in a cryosurgical probe. The vacuum insulation tube assembly includes an inner tube; and, an outer tube concentrically positioned about the inner tube. The outer tube is securely soldered at end portions of the inner tube and forms a vacuum space between the inner tube and the outer tube. The vacuum tube assemblies may be conveniently mass produced using a special fixture. | 05-26-2011 |
20110178514 | Cryosurgical Instrument Insulating System - A device, system and method for controlling the temperature differential between the material within the cryosurgical instrument and the external temperature of the shaft, apart from at the cryotip itself. | 07-21-2011 |
20110184401 | CRYOTHERAPY PLANNING DEVICE AND CRYOTHERAPY DEVICE - The present invention relates to a treatment device utilized in the freezing treatment method and its treatment planning device, and has an object to settle a freezing period·defrosting period according to a size of a treatment portion. | 07-28-2011 |
20110184402 | Flexible Cryogenic Probe Tip - One embodiment of the invention is a flexible cryogenic probe tip. The flexible probe tip has a linear freeze zone at a distal end of the probe that allows for its placement and precisely controlled movements. The flexible cryogenic probe tip precisely conforms to the target tissue surface to create a linear lesion. In addition, the probe tip is steerable to facilitate proper placement with minimal access points into a patient's body. Various configurations of the flexible probe tip allow it to conform and ablate tissue of many sizes, shapes, and/or dimensions. Methods of utilizing the cryogenic probe tip include steps of positioning the distal end at a tissue site for at least one ablative procedure, maneuvering the distal end to the tissue site, directing a cryogen from the supply source to the distal end, controlling a flow of cryogen from the supply source to the distal end and back to the supply source, and segmenting control of the distal end mechanically or through the step of controlling the flow of cryogen. | 07-28-2011 |
20110224662 | CRYOSURGICAL INSTRUMENT WITH ENHANCED HEAT EXCHANGE - A cryosurgical instrument features a cryogen in liquid or liquid-gaseous (mist) form being supplied by a feeding lumen into the internal space of a cryotip at the distal end of the cryosurgical instrument. The distal section of the feeding lumen is helically coiled, so that an outer diameter of the helically coiled distal section fits an inner diameter of a cylindrical envelope of said cryotip, and said helically coiled distal section and said cylindrical envelope are in thermal contact. | 09-15-2011 |
20110264084 | VACUUM INSULATED COOLING PROBE WITH HEAT EXCHANGER - An insulated cooling probe including a probe sleeve assembly having an annular insulating jacket shaped in the vicinity of an evacuation vent to achieve a deeper vacuum within the insulating space than is applied to the vent, and a coolant inlet passageway and a coolant exit passageway bounded by a coolant passageway wall disposed within the insulating jacket, the probe also including a cooling tip extending outwardly from the sleeve assembly at one end of the probe and including a cooling region into which coolant enters from the coolant inlet passageway and from which coolant exits into the coolant exit passageway. The coolant expands across an orifice when upon exiting the coolant inlet passageway and entering the cooling tip. The coolant flowing in the coolant inlet passageway is pre-cooled in a heat transfer region of the probe by transferring heat to coolant flowing in the coolant exit passageway. | 10-27-2011 |
20120010605 | CRYOSURGICAL CATHETER - A cryogenic catheter includes an outer flexible member having at least one cryogenic fluid path through the flexible member. The at least one fluid path is defined by a plurality of flexible members disposed within the outer flexible member. | 01-12-2012 |
20120022514 | CRYOSURGICAL PROBE ASSEMBLY WITH MULTIPLE DEPLOYABLE CRYOPROBES - The cryosurgical probe assembly with multiple deployable cryoprobes includes a) a housing assembly; b) a plurality of elongated structural support elements, each securely connected at a first end to the housing assembly; c) a tip member securely connected to second ends of the plurality of elongated structural support elements, the tip member including a plurality of cryoprobe openings; and, d) a plurality of cryoprobes each having a shaft thereon, each shaft being deployable through a respective cryoprobe opening during operation to a deployed position used for ablating tissue. In an alternate embodiment, a cylindrical housing is utilized rather than elongated structural support elements. | 01-26-2012 |
20120089136 | CRYOSURGICAL INSTRUMENT WITH QUICK COUPLING MECHANISM - A cryoprobe with a reliable and inexpensive quick coupling unit including a male unit and a suitable corresponding female coupling unit. The female unit is installed on the distal end of a hose supplying the liquid cryogen into the cryoprobe. | 04-12-2012 |
20120109119 | COMPATIBLE CRYOGENIC COOLING SYSTEM - A method of operating a medical system, including coupling a medical system to an outlet of a fluid distribution network having a plurality of fluid outlets in a patient treatment center; delivering fluid from the outlet to the medical system; compressing the delivered fluid with the medical system; decreasing the moisture content of the delivered fluid with the medical system; cooling the fluid with the medical system; delivering the fluid from the medical system to a medical device; and removing the fluid from medical device with the medical system. | 05-03-2012 |
20120136344 | NEUROMODULATION CRYOTHERAPEUTIC DEVICES AND ASSOCIATED SYSTEMS AND METHODS - Neuromodulation cryotherapeutic devices and associated systems and methods are disclosed herein. A cryotherapeutic device configured in accordance with a particular embodiment of the present technology can include an elongated shaft having distal portion and a supply lumen along at least a portion of the shaft. The shaft can be configured to locate the distal portion intravascularly at a treatment site proximate a renal artery or renal ostium. The supply lumen can be configured to receive a liquid refrigerant. The cryotherapeutic device can further include a cooling assembly at the distal portion of the shaft. The cooling assembly can include an applicator in fluid communication with the supply lumen and configured to deliver cryotherapeutic cooling to nerves proximate the target site when the cooling assembly is in a deployed state. | 05-31-2012 |
20120179149 | Cryosurgical System with Low Pressure Cryogenic Fluid Supply - A liquid cryogen fluid system for providing cryogenic liquid to a cryoprobe in a cryosurgical system for treating fibroadenomas and other lesions in the body. The system includes a cryoprobe to cryoablate a fibroadenoma with a treatment regimen that takes less time and consumes less cryogen than currently accepted regimens. | 07-12-2012 |
20120209257 | ENERGY DELIVERY SYSTEMS AND USES THEREOF - The present invention relates to comprehensive systems, devices and methods for delivering energy to tissue for a wide variety of applications, including medical procedures (e.g., tissue ablation, resection, cautery, vascular thrombosis, treatment of cardiac arrhythmias and dysrhythmias, electrosurgery, tissue harvest, etc.). In certain embodiments, systems, devices, and methods are provided for treating a tissue region (e.g., a tumor) through application of energy. | 08-16-2012 |
20120232543 | CRYOSURGICAL INSTRUMENT WITH REDIRECTED FLOW - A cryosurgical instrument that includes: an external shaft with a cryotip; a heat exchanger that cools a portion of the external shaft and the tip when cryogen is received thereby; and a flow diverter that receives a flow of cryogen, that splits the received flow of cryogen into two or more split cryogen flows, and that delivers the split cryogen flows to the heat exchanger, the flow diverter including a first passage with one or more inlet ports at an upstream side of the diverter that receive the flow of cryogen and two or more outlet ports at a downstream side of the diverter and in fluid communication with the heat exchanger. | 09-13-2012 |
20120289953 | COILED HEAT EXCHANGER FOR CRYOSURGICAL INSTRUMENT - A cryosurgical instrument including: a shaft having a closed distal end defining an expansion chamber and an open proximal end adapted and configured to receive an inflow of cryogen and to exhaust a flow of expanded cryogen; and a heat exchanger. The heat exchanger includes: a plurality of cryogen delivery tubes that spiral around a longitudinal axis thereof; and a diffuser having a plurality of branches, each of the branches supplying received cryogen to a respective one of the delivery tubes. The cryogen delivery tubes, where they spiral, are spaced from each other and in fluid tight contact with the inner surface of the shaft so as to form spiraling cryogen exhaust pathways that extend along a portion of a length of the cryosurgical instrument from the distal end of the shaft. | 11-15-2012 |
20130012932 | METHOD AND DEVICES FOR THE TREATMENT OF SKIN LESIONS - A tweezers device for the application of cryogenic matter directly on a skin lesion while protecting the collateral skin tissue from being damaged by the cryogenic matter, the device comprising an applicator body configured with opposing tweezer arms, each tweezer arm including a cryogenic matter application element such that when the opposing tweezer arms are closed about the skin lesion, the skin lesion is substantially encased by the cryogenic matter application elements. | 01-10-2013 |
20130041358 | CRYOABLATION SYSTEM HAVING DOCKING STATION FOR CHARGING CRYOGEN CONTAINERS AND RELATED METHOD - A cryoablation system includes thermally insulated containers for holding liquid refrigerant. The containers are placed in a docking station that charges the containers with a liquid refrigerant at a cryogenic temperature suitable for carrying out a surgical procedure. The charged containers are detachably connectable with an inlet line of a cryoablation probe. When the cryoprobe is activated, the chilled liquid refrigerant is transported from a delivery container, through the cryoprobe, and to a recovery container. The recovery container is preferably identical in design to the delivery container. The refilled recovery container is then placed in the docking station to charge. In another embodiment, a cartridge includes a delivery container and recovery container combined as a single unit. Methods are also described. | 02-14-2013 |
20130090639 | SYSTEM AND METHODS FOR DESTRUCTION OF TISSUE USING CRYOGENIC FLUID - Provided are systems and methods for destroying tissue using a cryogenic fluid. The systems generally comprise a hollow outer cylinder; a hollow inner cylinder placed within the hollow outer cylinder; a tip at the front end or distal end of the outer cylinder; wherein a cryogenic fluid is made to flow through the hollow region of the inner cylinder which oozes out or flows out of more than one grooves or apertures on the surface of the inner cylinder and then passes through the hollow portion of the outer cylinder. Yet another preferred embodiment provides for a housing component having a combination of storage for additional system cooling and exhaust facilities. | 04-11-2013 |
20140135754 | COILED HEAT EXCHANGER FOR CYROSURGICAL INSTRUMENT - A cryosurgical instrument including: a shaft having a closed distal end defining an expansion chamber and an open proximal end adapted and configured to receive an inflow of cryogen and to exhaust a flow of expanded cryogen; and a heat exchanger. The heat exchanger includes: a plurality of cryogen delivery tubes that spiral around a longitudinal axis thereof; and a diffuser having a plurality of branches, each of the branches supplying received cryogen to a respective one of the delivery tubes. The cryogen delivery tubes, where they spiral, are spaced from each other and in fluid tight contact with the inner surface of the shaft so as to form spiraling cryogen exhaust pathways that extend along a portion of a length of the cryosurgical instrument from the distal end of the shaft. | 05-15-2014 |
20140142559 | APPARATUS AND METHODS FOR RETRACTING A CATHETER BALLOON - A balloon elongation apparatus includes an elongated hypotube with a distal end having a reduced inner diameter portion that is configured to radially expand when a mandrel is advanced through a lumen of the hypotube towards the reduced inner diameter portion. A medical kit includes a catheter having a distally-located balloon and the elongation apparatus disposed within a guide wire tube of the catheter. In use, the balloon is elongated following a procedure in order to facilitate retracting the balloon into a sheath. The balloon is elongated by first advancing the mandrel relative to the hypotube so that the hypotube radially expands and firmly engages an inner surface of the guide wire tube and then advancing the mandrel, hypotube, and distal end of the guide wire tube relative to the catheter body. | 05-22-2014 |
20140243808 | ABLATION PROBE WITH DEPLOYABLE SENSORS - The present disclosure relates to a thermal ablation probe device that integrates deployable sensors with a freezing probe or heating probe for use in ablating tissues. The ablation probe includes a longitudinal body including a thermal ablation energy source which may be, e.g., a cryosource or a heat source. The longitudinal body has a proximal end and a distal end terminating at a probe tip; and at least one deployable assembly disposed within the longitudinal body. The deployable assembly includes a flexible and substantially rigid deployment member, and at least one sensor affixed to a distal end of the deployment member. The ablation probe further includes a control mechanism for controlling deployment and retraction of the deployable assembly. | 08-28-2014 |
20140276709 | VEIN OCCLUSION ASSESSMENT USING TEMPERATURE - A medical system, comprising an ablation catheter is disclosed. The ablation catheter includes an elongate shaft with a proximal end, a distal end and a lumen disposed between the proximal end and the distal end. The ablation catheter also includes an expandable element in fluid communication with the lumen, a first temperature sensor operable to measure a first temperature; and a second temperature sensor operable to measure a second temperature. The first temperature sensor and the second temperature sensor are longitudinally separated from each other by at least a portion of the expandable element. | 09-18-2014 |
20140358137 | COMPLIANT BALLOON WITH LIQUID INJECTION - A system and method for occluding a pulmonary vein. The device includes a treatment device comprising an inner balloon, an outer balloon, and a space therebetween. Delivery of fluid to the inner balloon inflates the treatment element to a first diameter. If a greater treatment element diameter is required to completely occlude a pulmonary vein, fluid is delivered to the space between the first and second balloons, which expands the second balloon and causes the treatment element to have a second diameter that is greater than the first diameter. The fluid delivered to the inner balloon and fluid delivered to the space between the balloons may be from different sources and may be delivered and exhausted independently. Once the treatment element is caused to have a diameter sufficient to completely occlude the pulmonary vein, the treatment element is activated to cool or heat ostial tissue. | 12-04-2014 |
20140371732 | THERMOTHERAPY APPLICATION AND CONTROL SYSTEM - Apparatus for applying thermotherapy to a part of the human or animal body comprising an applicator having a flexible enclosure in which thermal energy transfer fluid can circulate, a connector for connecting the applicator to a control system, an interface layer for providing a thermally conductive interface between the flexible enclosure and a treatment site and, an electrically conductive supporting layer for supporting the interface layer and capable of being energised by an electrical signal from the control system to improve the thermal conductivity of the interface layer. The apparatus also includes a valve unit for connecting the applicator to a control system, a heat exchanger for cooling a thermal energy transfer fluid and a control system for controlling the application of thermotherapy. The apparatus permits manipulation and control of the molecules of the interface layer and a thermal energy transfer fluid to improve the thermal energy transfer efficiency between the applicator and a treatment site. | 12-18-2014 |
20150080871 | PHASE SEPARATION OF CRYOGEN IN CRYOSURGICAL INSTRUMENT - A cryosurgical instrument including: a core, a cryogen delivery tube, a cryogen return tube, and a shaft surrounding the core and the tubes. The shaft has a pointed distal end and a proximal end adapted and configured to receive an inflow of cryogen and to exhaust a flow of expanded cryogen. The cryogen delivery tube and the cryogen return tube both have respective helical portions that spiral around the core. The helical portions of the tubes are in fluid tight contact with the core and an inner surface of the shaft. The helical portions of the tubes spiral about the core in an alternating arrangement such that they alternate along a length of the core. The core and the helical portions of the delivery tube and the return tube comprise centrifugal phase separators. | 03-19-2015 |
20150105764 | COMPLIANT CRYOBALLOON APPARATUS FOR DENERVATION OSTIA OF THE RENAL ARTERIES - A cryotherapy balloon catheter includes a compliant cryotherapy balloon comprising a distal balloon section dimensioned for placement within a renal artery and a proximal balloon section dimensioned to abut against an ostium of the renal artery and extend into at least a portion of the abdominal aorta. The compliant balloon has a diameter that varies non-uniformly along a length of the compliant balloon, such that a diameter at the proximal balloon section is larger than a diameter of the distal balloon section. The cryotherapy balloon catheter may be configured to deliver cryogenic therapy to at least the ostium of the renal artery sufficient to irreversibly terminate renal sympathetic nerve activity, such as by causing neurotmesis of renal nerve fibers and ganglia at the ostium of the renal artery. | 04-16-2015 |
20150133905 | Plaque Stabilization Using Cryoenergy - There is provided a method of supplying cryoenergy to a plaque within a blood vessel. The method comprises expanding an expandable membrane of a catheter apparatus with a pressure of less than 5 ATM (507 kPa), the catheter apparatus having been placed in thermal contact with the plaque within the blood vessel. The method also comprises establishing a temperature of between +15° C. (288K) and −35° C. (238K) at an interface of the expandable membrane and the blood vessel. A system and catheter apparatus are also provided. | 05-14-2015 |
20150289919 | ROBOTIC TOOLKIT - A surgical instrument kit comprising: (a) a robotic arm comprising a first jaw including a first bipolar electrode and a second jaw including a second bipolar electrode, wherein at least one of first jaw and second jaw is repositionable with respect to the other jaw; (b) a first surgical tool head including a first electrical load in electrical communication with a first pair of electrical terminals, the first surgical tool head adapted to be removably coupled to the robotic arm; and, (c) a second surgical tool head including a second electrical load in electrical communication with a second pair of electrical terminals, the second surgical tool head adapted to be removably coupled to the robotic arm, where the first pair of electrical terminals of the first surgical tool head are adapted to engage the first bipolar electrode and the second bipolar electrode to establish electrical communication between the first bipolar electrode and a first of the first pair of electrical terminals and between the second bipolar electrode and a second of the first pair of electrical terminals, and where the second pair of electrical terminals of the second surgical tool head are adapted to engage the first bipolar electrode and the second bipolar electrode to establish electrical communication between the first bipolar electrode and a first of the second pair of electrical terminals and between the second bipolar electrode and a second of the second pair of electrical terminals. | 10-15-2015 |
20160051309 | CRYOGENIC BALLOON DEVICE WITH RADIOFREQUENCY TIP - An intravascular ablation device, including a flexible elongate body; an expandable element positioned on the elongate body; a radiofrequency or electroporation treatment segment located distally of the expandable element; a cryogenic coolant source in fluid communication with an interior of the expandable element; and a radiofrequency or electroporation energy source in communication with the radiofrequency or electroporation treatment segment. | 02-25-2016 |
20160249970 | ENDOVASCULAR NEAR CRITICAL FLUID BASED CRYOABLATION CATHETER HAVING SUPERELASTIC TREATMENT SECTION | 09-01-2016 |