Patents Examined by Linda C. Dvorak
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Patent number: 11786301Abstract: The present disclosure provides electroporation systems and methods of energizing a catheter for delivering electroporation. A catheter for delivering electroporation includes a distal section and an electrode assembly. The distal section is configured to be positioned in a vein within a body. The vein defines a central axis. The electrode assembly is coupled to the distal section and includes a structure and a plurality of electrodes distributed thereabout. The structure is configured to at least partially contact the vein. Each of the electrodes is configured to be selectively energized to form a circumferential ring of energized electrodes that is concentric with the central axis of the vein.Type: GrantFiled: October 12, 2022Date of Patent: October 17, 2023Assignee: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.Inventor: Eric Olson
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Patent number: 11779391Abstract: A method of ablation includes storing in a memory a pre-determined relation between lesion size and amount of ablative energy, for each of one or more selected temperatures. Using a processor, user input is received, that indicates a lesion size and a tissue temperature. Based on the relation, an amount of energy is determined, that matches the lesion size and the tissue temperature. An ablation probe is controlled to apply the amount of ablative energy that matches the selected lesion size.Type: GrantFiled: February 28, 2019Date of Patent: October 10, 2023Assignee: Biosense Webster (Israel) Ltd.Inventors: Assaf Govari, Andres Claudio Altmann, Ella Ozeri
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Patent number: 11771492Abstract: A pulmonary treatment catheter and handle system including a catheter assembly with insertion tube coupled to a handle assembly. The system is further removably coupleable to a delivery device, such as a flexible bronchoscope or endoscope, having a port for coupling the handle assembly thereto, and a working channel in communication with the port for delivering the catheter assembly through the delivery device and into a body lumen. Optionally, a port channel of the port can be collinear with the working channel of the delivery device. The catheter assembly, handle assembly, and delivery device cooperate together to facilitate delivery and positioning of a catheter electrode in a treatment site, such as an airway, conduit, or vessel for treatment of the tissue, while minimizing damage to portions of the catheter assembly, the delivery device, or both.Type: GrantFiled: June 9, 2017Date of Patent: October 3, 2023Assignee: Nuvaira, Inc.Inventors: Dennis Wahr, Larry Wales, Steven P. Mertens
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Patent number: 11771488Abstract: A method of body tissue ablation includes defining an ultrahigh-power ultrashort-duration (UPUD) ablation protocol that specifies an ablation signal having (i) a target ablation power of at least 400 Watts and (ii) a pulse duration that does not exceed three seconds, for creating a specified lesion in tissue in a body of a patient. Contact is made between an ablation probe and the tissue. Using the ablation probe, the ablation signal is applied to the tissue according to the UPUD protocol, which delivers the ablation signal having the specified target ablation power and duration.Type: GrantFiled: October 21, 2019Date of Patent: October 3, 2023Assignee: Biosense Webster (Israel) Ltd.Inventors: Assaf Govari, Andres Altmann
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Patent number: 11766288Abstract: A medical instrument sheath including an elongated hollow tube having a wall comprised of polymeric material; and at least one electrical lead embedded inside the wall, wherein the at least one electrical lead is configured to be connected with a respective electrode disposed in a member located inside the sheath and extending from a distal end of the sheath.Type: GrantFiled: February 22, 2019Date of Patent: September 26, 2023Assignee: Gyrus ACMI, Inc.Inventors: Ahmad Alsaffar, Joel Willhite
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Patent number: 11759247Abstract: Various aspects of the present invention are directed towards apparatuses, systems, and method that may include a tissue ablation system. The tissue ablation system may include an ablation device, an ablation generator, and a controller configured to initiate a pre-ablation procedure in a medium, and during the pre-ablation procedure monitor temperature data and/or power data.Type: GrantFiled: March 12, 2021Date of Patent: September 19, 2023Assignee: BIOCOMPATIBLES UK LIMITEDInventors: Catherine Condie, Charles Houtz, Daniel Kollmann, Oleg Mosesov
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Patent number: 11751939Abstract: Systems, devices, and methods for transvascular ablation of target tissue are disclosed herein. The devices and methods may, in some examples, be used for splanchnic nerve ablation to increase splanchnic venous blood capacitance to treat at least one of heart failure and hypertension. For example, the devices disclosed herein may be advanced endovascularly to a target vessel in the region of a thoracic splanchnic nerve (TSN), such as a greater splanchnic nerve (GSN) or a TSN nerve root. Also disclosed are method of treating heart failure, such as HFpEF, by endovascularly ablating a thoracic splanchnic nerve to increase venous capacitance and reduce pulmonary blood pressure.Type: GrantFiled: January 28, 2019Date of Patent: September 12, 2023Assignee: Axon Therapies, Inc.Inventors: Dorin Panescu, Andrew Wu, Zoar Jacob Engelman, Mark Gelfand, Mark S. Leung
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Patent number: 11751936Abstract: An expandable balloon, which is coupled to a distal end of a shaft for insertion into an organ of a patient, includes an expandable membrane, one or more electrodes and one or more respective conductive coils. The one or more electrodes are disposed over an external surface of the membrane. The one or more respective conductive coils are each disposed proximate a respective RF ablation electrode. The one or more conductive coils are configured as magnetic sensors.Type: GrantFiled: November 21, 2018Date of Patent: September 12, 2023Assignee: Biosense Webster (Israel) Ltd.Inventor: Meir Bar-Tal
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Patent number: 11744515Abstract: Methods for estimating of the effectiveness of catheter ablation procedures to form lesions, and particular lesions which together form an ablation segment of an ablation line. Lesion effectiveness parameters are received, and effectiveness, optionally the joint effectiveness, of corresponding ablations (optionally planned, current, and/or already performed) is estimated. In some embodiments, estimating is based on use by computer circuitry of an estimator constructed based on observed associations between previously analyzed lesion effectiveness parameters, and observed lesion effectiveness. Additionally or alternatively, estimators may be constructed based on analytic functions. The estimator is used by application to the received lesion effectiveness parameters.Type: GrantFiled: January 12, 2018Date of Patent: September 5, 2023Assignee: Navix International LimitedInventors: Haim Rodriguez, Shlomo Ben-Haim, Yizhaq Shmayahu, Yitzhack Schwartz, Eli Dichterman, Zalman Ibragimov
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Patent number: 11737824Abstract: Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include a microwave ablation probe. The microwave ablation probe may include a feedline having an inner conductor, an outer conductor and a dielectric; and an antenna including a helical arm, the helical arm being electrically connected to the outer conductor of the feedline at a junction point, and a linear arm, the linear arm being electrically connected to the inner conductor of the feedline.Type: GrantFiled: August 7, 2020Date of Patent: August 29, 2023Assignee: BIOCOMPATIBLES UK LIMITEDInventors: Oleg F. Mosesov, Daniel T. Kollmann
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Patent number: 11737818Abstract: Described embodiments include an apparatus that includes an intrabody probe and an electrode coupled to a distal end of the intrabody probe. The electrode includes a flexible electrically-insulating substrate, comprising a substrate surface. The electrode further includes a layer of an electrically-conducting metal covering at least part of the substrate surface. The electrode further includes a metallic sheet, comprising an inner sheet surface, and an outer sheet surface shaped to define multiple depressions. The electrode further includes an adhesive, which fills the depressions and bonds the outer sheet surface to the layer of the electrically-conducting metal. Other embodiments are also described.Type: GrantFiled: August 14, 2018Date of Patent: August 29, 2023Assignee: Biosense Webster (Israel) Ltd.Inventors: Christopher Thomas Beeckler, Joseph Thomas Keyes
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Patent number: 11737822Abstract: A dispersive return pad for a radiofrequency ablation procedure includes a skin material adapted to be worn on a patient's skin, a conductive material positioned adjacent to the skin material, a non-conductive material surrounding the conductive material, and a phase-change material surrounding at least a portion of a side edge of the conductive material. Further, the phase-change material is configured to undergo a phase transition at a target temperature range corresponding to a non-damaging hyperthermic temperature range for the patient's skin. As such, the phase-change material is configured to absorb excess heating from the RF ablation procedure and to prevent burns to the patient's skin.Type: GrantFiled: July 24, 2018Date of Patent: August 29, 2023Assignee: Avent, Inc.Inventors: Ruoya Wang, Jennifer J. Barrett
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Patent number: 11737807Abstract: To determine appropriate treatment doses of cold atmospheric plasma (CAP), the Canady Helios Cold Plasma Scalpel was tested across numerous cancer cell types including renal adenocarcinoma, colorectal carcinoma, pancreatic adenocarcinoma, ovarian adenocarcinoma, and esophageal adenocarcinoma. Various CAP doses were tested consisting of both high (3 L/min) and low (1 L/min) helium flow rates, several power settings, and a range of treatment times up to 5 minutes. The impact of cold plasma on the reduction of viability was consistently dose dependent, however the anti-cancer capability varied significantly between cell lines. While the lowest effective dose varied from cell line to cell line, in each case an 80-99% reduction in viability was achievable 48 hours after CAP treatment. Therefore, it is critical to select the appropriate CAP dose necessary for treating a specific cancer cell type.Type: GrantFiled: January 28, 2020Date of Patent: August 29, 2023Assignee: Jerome Canady Research Institute for AdvancedInventor: Jerome Canady
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Patent number: 11737809Abstract: The disclosed technology is directed to a surgical instrument comprises a sheath having respective opposed proximal and distal ends. A pair of grasps is disposed on the distal-end portion of the sheath gripping a treatment target therebetween. A drive shaft is coupled to at least one of the pair of grasps to open or to close the pair of grasps by being moved along the longitudinal axis with respect to the sheath. Electric elements are used to apply treatment energy to the treatment target. A first operating device supplies the electric energy to the electric elements in a first supply state. A first member produces a force to open or close the pair of grasps and applies the force to the drive shaft. A second member is disposed in line with the first member and applies a force to the drive shaft in response to the operation input.Type: GrantFiled: December 17, 2019Date of Patent: August 29, 2023Assignee: OLYMPUS CORPORATIONInventor: Ojiro Kitamura
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Patent number: 11730530Abstract: The inventive device (10) can be used for tissue coagulation and/or tissue ablation. It comprises at least one electrode (16) that serves for generating a spark or plasma jet and is connectable to an electric source (20) for this purpose. The probe (11) is assigned to a measuring device (24) that emits and/or receives light in the proximity of the electrode (16) and determines the distance of the probe (11) from the tissue (36) and/or the tissue temperature and/or the composition of the influenced tissue (36). Preferably the measuring device (24) is operated synchronized with pulses or pauses of the pulse-pause-modulated radio frequency voltage (UHF) of the electrode (16) in order to simultaneously carry out the desired measurements during the operation of the instrument (11) and to feedback control the operation of the instrument (11) based on the gained measurement results.Type: GrantFiled: January 21, 2020Date of Patent: August 22, 2023Assignee: ERBE ELEKTROMEDIZIN GMBHInventors: Caglar Ataman, Klaus Fischer, Alexander Neugebauer, Sergio Vilches, Hans Zappe
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Patent number: 11730940Abstract: A surgical instrument includes an instrument shaft having a proximal end and a distal end, and an interior passageway extending from the proximal end to the distal end, a first conduit fluidly coupled to the instrument shaft and being configured for selective connection to an irrigation source, and a second conduit fluidly coupled to the instrument shaft and being configured for selective connection to a vacuum source, wherein the instrument shaft is configured for percutaneous insertion without use of a trocar.Type: GrantFiled: June 5, 2017Date of Patent: August 22, 2023Assignee: NEW WAVE ENDO-SURGICAL CORP.Inventors: Ricardo Alexander Gomez, Sandy Lawrence Heck, Eric William Conley
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Patent number: 11723707Abstract: A probe and method of using a probe are disclosed. The probe may comprise a first member, a tip, a second member, and a third member. The first member may have a first and second end portions. The tip may be configured to engaged to the first member at the second end portion. The second member may be configured to extend and be positioned within the first member. The third member may be configured to be disposed outward of the second member along at least a portion of the second member, engage an inner surface of the first member, and define to least one passage between the third member and the first member. The probe may be coupled to a fluid supply and return, and fluid may flow within the probe, including within the passage defined between the first and third members.Type: GrantFiled: July 2, 2020Date of Patent: August 15, 2023Assignee: VARIAN MEDICAL SYSTEMS, INC.Inventor: Daniel N. Grimm
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Patent number: 11717336Abstract: An electrosurgical generator capable of supplying energy in a waveform that causes electroporation in biological tissue. The electrosurgical generator may comprise an electroporation waveform supply unit that is integrated with an electromagnetic signal supply unit for generating microwave electromagnetic signals and radiofrequency electromagnetic signals for treatment. The electrosurgical generator may be configured to deliver different types of energy along a common feed cable. The electroporation waveform supply unit comprises a DC power supply and a DC pulse generator. The DC power supply may include a DC-DC converter for up-converting a voltage output by an adjustable voltage supply. Each DC pulse may have a duration in the range 1 ns to 10 ms and a maximum amplitude in the range 10 V to 10 kV.Type: GrantFiled: March 8, 2019Date of Patent: August 8, 2023Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, Malcolm White, John Bishop, Ilan Wyn Davies, Christopher Duff, George Hodgkins
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Patent number: 11712284Abstract: An ablation system includes multiple electrodes configured to contact body tissue of a patient, including two or more ablation electrodes for contacting respective locations in a target organ and a return electrode. A signal-generating unit includes multiple signal generators, which are configured to apply respective composite signals to respective ones of the ablation electrodes. The composite signals include multiple, respective signal components, including respective ablation signals, having different, respective ablation-signal amplitudes and phases at a common ablation-signal frequency, and respective probe signals having respective probe-signal amplitudes and different respective probe-signal frequencies. A processor is coupled to measure the probe signals received by each of the multiple electrodes, and responsively to the measured probe signals, to control the ablation-signal amplitudes and phases.Type: GrantFiled: November 4, 2019Date of Patent: August 1, 2023Assignee: Biosense Webster (Israel) Ltd.Inventors: Michael Levin, Daniel Osadchy, Eyal Rotman, Yavgeny Bonyak, Boris Ashkinezer, Alek Vilensky
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Patent number: 11701166Abstract: A method of manufacturing a catheter tip by electroplating a conductive material over an insert comprising a negative to a domelike shape thereby forming a shape of the catheter tip comprising a dome with the domelike shape, selectively positioning a plurality of irrigation holes between outer and inner surfaces of the catheter tip, removing the insert thereby leaving the catheter tip and the plurality of irrigation holes, and electropolishing the catheter tip. In other examples, the insert is not removed and instead the step of electroplating causes the insert to be encapsulated with the conductive material thereby forming the catheter tip.Type: GrantFiled: November 13, 2020Date of Patent: July 18, 2023Assignee: Biosense Webster (Israel) Ltd.Inventors: Corey Rousu, Daniele Ghidoli, Matthew Hitzeroth