Patents Examined by Daniel W Fowler
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Patent number: 12213718Abstract: Aspects of the present invention provide miniaturized cryoprobes having shaft diameters up to 2 mm and including a stiffening element that may act as a grip for manipulation of the cryoprobe. Various aspects of the present disclosure are generally directed towards apparatuses, systems, and methods that may include a cryoprobe: In certain instances, the cryoprobe may include an elongate shaft and an operating head having an expansion chamber. The elongate shaft may include a first passageway configured to provide high pressure gas to the expansion chamber, a second passageway for evacuating gas from the expansion chamber, and a vacuum chamber coaxially arranged around the first passageway and the second passageway.Type: GrantFiled: November 1, 2019Date of Patent: February 4, 2025Assignee: Boston Scientific Scimed, Inc.Inventors: Dror Trumer, Satish Ramadhyani, Modechay Bleiwies
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Patent number: 12207894Abstract: A robotic surgical system includes an electrosurgical energy source, an instrument drive unit, a sterile interface module coupled to the instrument drive unit, and a robotic surgical instrument selectively couplable to the sterile interface module. The robotic surgical instrument may be disposed in electrical communication with the electrosurgical energy source while the robotic surgical instrument is coupled to the sterile interface module. The robotic surgical instrument is configured to automatically electrically disconnect from the electrosurgical energy source when the robotic surgical instrument is uncoupled from the sterile interface module.Type: GrantFiled: September 6, 2018Date of Patent: January 28, 2025Assignee: Covidien LPInventors: Brian Rockrohr, Jaimeen Kapadia, Eric Taylor
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Patent number: 12201341Abstract: An ultrapolar electrosurgery blade includes top and bottom thin elongated conductive members in vertical alignment and spaced apart from one another along their lengths, a non-conductive housing or coating covering both the top and bottom thin elongated conductive members and the space located between them to create opposing non-conductive sides of the blade with a non-conductive cutting end located between exposed conductive cutting ends, and both return and active contact layers located on each of the opposing non-conductive sides of the blade. An ultrapolar electrosurgery blade assembly having argon beam capability further includes a non-conductive tube member having a slot positioned over the top of the ultrapolar electrosurgery blade and a conductive hollow tubular member contained within at least a portion of the non-conductive tube member.Type: GrantFiled: February 19, 2024Date of Patent: January 21, 2025Assignee: I.C. Medical, Inc.Inventor: Ioan Cosmescu
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Patent number: 12201352Abstract: A system and method for assessing effective delivery of ablation therapy to a tissue in a body is provided. A three-dimensional anatomical map of the tissue is generated and displayed with the map defining a corresponding volume. An index is generated corresponding to a location within the volume with the index indicative of a state of ablation therapy at the location. The index may be derived from one or more factors such as the duration an ablation electrode is present at the location, the amount of energy provided, the degree of electrical coupling between an ablation electrode and the tissue at the location and temperature. A visual characteristic (e.g., color intensity) of a portion of the anatomical map corresponding to the location is then altered responsive to the index.Type: GrantFiled: April 14, 2022Date of Patent: January 21, 2025Assignee: St. Jude Medical, Atrial Fibrillation Division Inc.Inventors: D. Curtis Deno, Stephan P. Miller
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Patent number: 12193732Abstract: The invention relates to an ablation catheter for treatment of a patient's tissue, for example for a PVI procedure on a patient's heart, comprising an elongated catheter shaft and an ablation portion being arranged at a distal end of the catheter shaft with a plurality of electrodes accommodated along the ablation portion, wherein the ablation portion comprises at least two loop sections forming a three-dimensional spiral. In order to increase safety of ablation treatment, spare adjacent tissue (e.g. nerves, vessels, esophagus) and shorten ablation time, a pitch, or clearance of two neighboring loop sections is greater than an ionization threshold of the medium around the distal section, for example blood or gases resulted from electrolysis. The invention further relates to an operation method of such ablation catheter.Type: GrantFiled: April 18, 2024Date of Patent: January 14, 2025Assignee: CRC EP, INC.Inventors: Dorin Panescu, Cary Hata, Alan De La Rama, Henning Ebert, Steffen Holzinger
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Patent number: 12193726Abstract: A method for treating hypertrophic cardiomyopathy (HCM) utilizes an RF ablation electrode needle system that has an RF ablation generator, and an electrode needle. The distal end of the electrode needle is introduced to puncture within myocardium after piercing through epicardium and then advanced along an intramyocardial pathway between endocardia at two lateral sides of the interventricular septum to reach a hypertrophic area of an interventricular septum. The RF ablation generator is then turned on to implement single-point or multi-point ablation on the hypertrophic area of the interventricular septum, and then the RF electrode needle is withdrawn from the patient.Type: GrantFiled: November 21, 2022Date of Patent: January 14, 2025Assignee: Fourth Military Medical UniversityInventors: Liwen Liu, Rui Hu
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Patent number: 12178662Abstract: A spring element for a contact force sensing medical catheter. The spring element includes a first ring, a second ring spaced apart from the first ring, a plurality of struts connecting the first ring to the second ring, and a plurality of interlocking features. The second ring and the first ring are coaxially aligned with a longitudinal axis of the spring element. The plurality of struts is configured to permit elastic, relative axial and radial displacement between the first ring and the second ring. The plurality of interlocking features is configured to limit the relative axial and radial displacement between the first ring and the second ring.Type: GrantFiled: May 22, 2018Date of Patent: December 31, 2024Assignee: Boston Scientific Scimed, Inc.Inventors: Kimberly A. Miklos, Joseph Walker, Edward J. Maierhofer, Garth Mindermann, Devon N Arnholt, Todd College
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Patent number: 12178492Abstract: A controller for a cooled radiofrequency ablation system is configured to sequentially activate a plurality of pump assemblies with a pump activation time delay between the activation of each of the plurality of pump assemblies, measure a temperature drop delay time for each of a plurality of cooled radiofrequency ablation probes, map each respective pump assembly of the plurality of pump assemblies to a corresponding cooled radiofrequency ablation probe of the plurality of cooled radiofrequency ablation probes based on the temperature drop delay time and an activation time of each of the plurality of pump assemblies, and confirm the mapping of each respective pump assembly to the corresponding cooled radiofrequency ablation probe by comparing, for each of the plurality of cooled radiofrequency probes, the measured temperature drop delay time to an expected temperature drop delay time.Type: GrantFiled: October 11, 2022Date of Patent: December 31, 2024Assignee: Avent, Inc.Inventor: Ruoya Wang
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Patent number: 12171478Abstract: An apparatus for supply of coolant, particularly CO2 that is preferably provided in bottles, to cryosurgical instruments. The device may be a mechanical or thermal compression device. A pump may supply the CO2 taken from the bottle in a buffer container with a desired operation pressure. The pressure in the gas bottle can be less than the desired operation pressure. The apparatus includes a tempering device that is configured to bring the coolant to a desired temperature, particularly a temperature that is higher than the temperature in the gas bottle or in another storage container.Type: GrantFiled: January 14, 2021Date of Patent: December 24, 2024Assignee: Erbe Elektromedizin GmbHInventors: Volker Mayer, Frank Straub, Martin Georg Fritz, Waldemar Wandel
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Patent number: 12167884Abstract: An electrosurgical system includes an electrosurgical instrument having an electrode with a polymeric dielectric coating; and an electrosurgical generator, which includes a power converter configured to generate RF energy; a sensor coupled to the power converter and configured to sense a parameter of the RF energy; and a controller coupled to the sensor and the power converter. The controller is configured to control the power converter to output an RF waveform to achieve conductor breakthrough through the polymeric dielectric coating. The controller is further configured to determine whether the conductor breakthrough occurred based on the parameter; and execute a treatment algorithm based on a determination of the conductor breakthrough.Type: GrantFiled: December 17, 2021Date of Patent: December 17, 2024Assignee: Covidien LPInventors: Todd W. Boucher, William E. Robinson, Monte S. Fry, James D. Allen, IV, Jennifer R. McHenry
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Patent number: 12167879Abstract: A cryoablation catheter system comprises a cryoablation catheter having a shaft, a guidewire lumen member and an expandable balloon attached to the shaft and the guidewire lumen member, and an auxiliary device configured for use in combination with the cryoablation catheter, the auxiliary device including a location sensor configured to provide a sensor output indicative of a location of the location sensor within a localization volume responsive to a localization field. A user-accessible relative position indicator is located on one or both of the cryoablation catheter and the auxiliary device and is configured to provide an indication of a relative position of the cryoballoon and the location sensor.Type: GrantFiled: March 19, 2021Date of Patent: December 17, 2024Assignee: Boston Scientific Scimed, Inc.Inventors: Kurt Edmund Guggenberger, Eugene J. Jung, Jr., Steven A. Kubow
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Patent number: 12161394Abstract: Disclosed embodiments include apparatuses, systems, and methods for positioning electrodes within a body. In an illustrative embodiment, an apparatus for slidably moving multiple features relative to a sheath inserted into a body and positioned relative to a reference point includes a primary actuator configured to move a primary electrode, a secondary actuator configured to move a secondary electrode, and a control mechanism. The control mechanism is configured to selectively prevent movement of at least one of the primary actuator based on a position of the secondary actuator and of the secondary actuator based on a position of the primary actuator and lock positions of the primary actuator and the secondary actuator.Type: GrantFiled: March 8, 2021Date of Patent: December 10, 2024Assignee: Gyrus ACMI, Inc.Inventors: Christine N. Jurevicius, Michael S. Smith
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Patent number: 12161387Abstract: A control device includes: a power source configured to supply a high frequency power to a treatment instrument configured to treat a living tissue; a detecting circuit configured to sequentially detect a phase difference between a voltage and a current of the high frequency power supplied to the treatment instrument; and a processor configured to control operation of the power source, the processor being configured to sequentially calculate a variation of the phase difference detected by the detecting circuit, compare the calculated variation of the phase difference with a first threshold set for a variation of a phase difference, and perform reduction processing to reduce output of the high frequency power to be supplied to the treatment instrument when it is determined that the calculated variation of the phase difference is equal to or smaller than the first threshold.Type: GrantFiled: June 30, 2021Date of Patent: December 10, 2024Assignee: OLYMPUS CORPORATIONInventors: Sadayoshi Takami, Tsuyoshi Hayashida, Toshifumi Katsuragi, Shohei Moriwaki, Yoshitaka Honda
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Patent number: 12157018Abstract: An example method includes generating an acoustic ultrasound wave that is focused at a focal point. The method further includes sequentially directing the focal point upon distinct portions of an object to form respective shock waves at the distinct portions of the object. The method further includes, via the respective shock waves, causing the distinct portions of the object to boil and form respective vapor cavities. The method further includes causing substantially uniform ablation of a region of the object that comprises the distinct portions. The substantially uniform ablation is caused via interaction of the respective shock waves with the respective vapor cavities. An example ablation system and an example non-transitory computer-readable medium, both related to the example method, are also disclosed.Type: GrantFiled: December 12, 2019Date of Patent: December 3, 2024Assignees: University of Washington, KONINKLIJKE PHILIPS N.V., A CORPORPORATION ORGANIZED AND EXISTING UNDER THE LAWS OF KINGDOM OF THE NETHERLANDSInventors: Vera Khokhlova, Michael R. Bailey, Navid Farr, Tatiana D. Khokhlova, Wayne Kreider, Adam D. Maxwell, Ari Partanen, Oleg A. Sapozhnikov, George R. Schade, Yak-Nam Wang
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Patent number: 12150687Abstract: The disclosure relates to a cryoablation catheter and a cryoablation system. The cryoablation catheter comprises a catheter body and a freezing unit. The catheter body comprises a cold-source fluid input lumen and a cold-source fluid output lumen, both extending in an axial direction of the catheter body, and the freezing unit is arranged at a distal portion of the catheter body, and comprises a first balloon in fluid communication with the cold-source fluid input lumen and the cold-source fluid output lumen, and a second balloon arranged external to the first balloon with the length of the first balloon being less than the length of the second balloon. When the first balloon and the second balloon are dilated, a cavity is formed between the first balloon and the second balloon, to prevent the energy transfer in a space of the freezing unit corresponding to the cavity.Type: GrantFiled: August 30, 2018Date of Patent: November 26, 2024Assignee: CyroFocus MedTech (Shanghai) Co., Ltd.Inventors: Yuepeng Diao, Donghui Yang, Pan Li
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Patent number: 12150692Abstract: A method is provided to seal and cut biological tissue. An alternating current (AC) scaling signal is imparted between a set of sealing electrodes. An AC cutting signal is imparted between a set of cutting electrodes in response to a biological tissue impedance between the sealing electrodes reaching a first impedance threshold value. The AC scaling signal is halted at an end of a time interval, beginning while the AC cutting signal is imparted between the cutting electrodes, in response to impedance of the biological tissue disposed between the set of sealing electrodes reaching a second impedance threshold value.Type: GrantFiled: December 19, 2018Date of Patent: November 26, 2024Assignee: INTUITIVE SURGICAL OPERATIONS, INC.Inventors: Jignesh M. Shah, Jason W. Hemphill, Forrest R. Lundstrom, Duane W. Marion
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Patent number: 12150695Abstract: A surgical instrument includes a housing having an elongated shaft extending distally therefrom configured to support an end effector at a distal end thereof. A handle operably couples to a drive assembly and is moveable to actuate the end effector. The drive assembly includes: front and rear drive tubes, the rear drive tube including a front washer disposed at a distal end thereof, the front drive tube including a rear washer disposed at a proximal end thereof; a stopper slidably disposed atop the front tube, the stopper and the rear washer defining a dead space therebetween; and a spring operably associated with the stopper. Initial actuation of the handle moves the front and rear drive tubes to close the end effector to grasp tissue and, once closed, further movement of the handle moves the rear drive tube to slide the stopper to eliminate the dead space.Type: GrantFiled: October 8, 2021Date of Patent: November 26, 2024Assignee: Covidien LPInventor: Purvishkumar H. Soni
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Patent number: 12144532Abstract: Various embodiments of the present disclosure can include a medical device for providing therapy to heart tissue. The medical device can comprise a balloon, a movable manifold, wherein the movable manifold comprises a first plurality of openings and the movable manifold is inside the balloon and the movable manifold is configured to distribute a fluid within the balloon, an elongate shaft with a proximal end portion and a distal end portion, wherein the distal end portion of the elongate shaft is coupled with the balloon, a central lumen, wherein the movable manifold is movably coupled with the central lumen, and a supply lumen comprising a supply lumen proximal end and a supply lumen distal end, wherein the supply lumen is longitudinally movable and in fluid communication with the movable manifold, wherein the movable manifold is configured to move longitudinally in response to an actuation of the supply lumen proximal end.Type: GrantFiled: October 26, 2018Date of Patent: November 19, 2024Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Troy T. Tegg, Salo Arias, Derek C. Sutermeister
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Patent number: 12137968Abstract: Catheter systems, tools and methods are disclosed for the selective and rapid application of DC voltage to drive irreversible electroporation, with the system controller configurable to apply voltages to an independently selected subsets of electrodes, such that voltages of one polarity are applied to a multiplicity of electrodes on a first medical device and voltages of the opposite polarity to a multiplicity of electrodes on a second medical device. The first and second medical devices can be epicardial catheters positioned such that their opposing distal tips are approximately aligned and whose segments with electrodes collectively wrap around the pulmonary veins.Type: GrantFiled: March 19, 2021Date of Patent: November 12, 2024Assignee: Boston Scientific Scimed, Inc.Inventor: Gary L. Long
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Patent number: 12137962Abstract: Provided is a surgical electrode in which an end portion capable of emitting a high frequency has a surface treatment film that includes a first coating and a second film in the order mentioned. The first coating is formed by contacting a surface treatment agent (X) with or over the entirety or a part of the surface of the end portion at least, which surface treatment agent (X) contains at least an amino group-containing compound, and the second film is formed by contacting a surface treatment agent (Y) with a part or the entirety of the surface of the first coating, which surface treatment agent (Y) contains: a silicone resin (A); a compound (B) containing a metal element selected from titanium, platinum, rhodium and palladium; and an aromatic hydrocarbon-based solvent (C), and satisfies: (I) the content of the silicone resin is in a range of 90% by mass to 99.Type: GrantFiled: August 5, 2019Date of Patent: November 12, 2024Assignee: Nihon Parkerizing Co., Ltd.Inventors: Takayuki Yorozu, Junichi Uchida, Ryoko Katsuraya, Motoki Komaike