Patents Examined by Abigail M Ziegler
-
Patent number: 12114919Abstract: A system for ablation is described herein including an inner electrode assembly with an inner elongate shaft and a distal electrode, an outer electrode assembly having an outer elongate shaft and a proximal electrode, wherein the outer electrode assembly defines a central passage configured to slidably receive the inner electrode assembly, wherein the distal electrode or the proximal electrode is axially moveable with respect to the other, and an energy source configured to be electrically connected to the distal electrode and the proximal electrode and configured to deliver a pulsed electric field (PEF). One of the distal electrode and proximal electrode is part of a first expandable electrode array comprising two or more electrode elements moveable between an unexpanded position and an expanded position.Type: GrantFiled: October 22, 2019Date of Patent: October 15, 2024Assignee: Boston Scientific Scimed, Inc.Inventors: Bruce R. Forsyth, Larry D. Canady, Jr., Hong Cao, Timothy A. Ostroot, Jonathan Tyler Gorzycki
-
Patent number: 12096976Abstract: Devices, systems, and methods of the present disclosure are directed to selectively controlling delivery of electrical energy to an ablation electrode, with the selective control based on a history of the electrical energy delivered to a return electrode (e.g., electrical energy delivered in a current time-step and in one or more time-steps preceding the current time-step). Controlling electrical energy delivered to an ablation electrode based on the history of electrical energy delivered to a return electrode can reduce the likelihood of unintended tissue damage away from a treatment site as electrical energy is delivered to the treatment site via the ablation electrode. Further, or instead, the devices, systems, and methods of the present disclosure can reduce the likelihood of unintended tissue damage away from the treatment site while reducing or eliminating the need to interrupt lesion formation by the ablation electrode.Type: GrantFiled: November 26, 2018Date of Patent: September 24, 2024Assignee: AFFERA, INC.Inventors: Doron Harlev, Paul B. Hultz, Robert Alan Mest
-
Patent number: 12064174Abstract: An exemplary ablation system is provided. The system is designed for safe and efficacious energy delivery into tissue by, for example, emitting energy in a controlled, repeatable manner that allows for feedback and energy emission titration based on sensed parameters (e.g., tissue temperature) measured during ablation. The system may include a switching antenna for both heating of target tissue and radiometry to monitor the temperature of the heated tissue. For example, the switching antenna may include a monopole formed by proximal and distal radiating elements, such that the proximal radiating element includes a short to defeat a choke action of the proximal radiating element. The system further includes a processor for calculating the temperature of the target tissue and estimating volume of the ablation lesion based on the target tissue temperature.Type: GrantFiled: January 28, 2021Date of Patent: August 20, 2024Assignee: Hepta Medical SASInventors: Robert C. Allison, John McCarthy, Tim Lenihan
-
Patent number: 12059199Abstract: The present disclosure relates to a stent delivery system, and can be configured to include a connector portion connected to an external current source, an electrocautery tip connected to the connector portion by a conductive line, and a delivery portion having one side connected to the electrocautery tip, having the other side connected to the connector portion, and having the conductive line for connecting the electrocautery tip and the connector portion positioned therein, and a stent space portion in which a stent is positioned is formed adjacent to the electrocautery tip inside the delivery portion, and the delivery portion gradually moves and supplies the stent into the human body tissue, and according to the present disclosure, it is possible to integrate the conductive line and the tube, thereby improving the rigidity of the tube, and varying the size of the electrocautery tip.Type: GrantFiled: November 14, 2017Date of Patent: August 13, 2024Assignee: TAEWOONG MEDICAL CO., LTDInventors: Kyong Min Shin, Kwang Seok Kim, Se Ik Park, Seong Wook Park
-
Patent number: 12029475Abstract: Apparatus for removal of a thrombus from a body of a subject includes an electrically-insulating tube, which includes a distal end having a circumferential wall that is shaped to define one or more perforations, configured for insertion into the body of the subject, an outer electrode, disposed over the distal end of the electrically-insulating tube, and configured to lie at least partly within the thrombus while the electrically-insulating tube is inside the body of the subject, and an inner electrode, configured to lie, within the tube, opposite the perforations, while the outer electrode lies at least partly within the thrombus. The outer electrode is configured to attract the thrombus while the outer electrode lies at least partly within the thrombus and the inner electrode lies opposite the perforations, when a positive voltage is applied between the outer electrode and the inner electrode such that electric current flows through the perforations.Type: GrantFiled: April 11, 2019Date of Patent: July 9, 2024Assignee: MAGNETO THROMBECTOMY SOLUTIONS LTD.Inventors: Yuval Taff, Gal Stern, Itzhak Orion
-
Patent number: 11998258Abstract: An energy module for driving electrosurgical and/or ultrasonic surgical instruments is disclosed. The energy module can include an amplifier assembly that is configured to drive a variety of different energy modalities for one or more surgical instruments connected thereto. The energy module can further include a relay assembly for selectively coupling one or more of the amplifiers to different ports to which the surgical instruments are connectable. The amplifier assembly can include amplifiers for driving ultrasonic, bipolar, and/or monopolar energy.Type: GrantFiled: September 5, 2019Date of Patent: June 4, 2024Assignee: Cilag GmbH InternationalInventors: Joshua Henderson, Joshua P. Morgan, Eitan T. Wiener, Ryan M. Asher, Brendan J. Oberkircher, John B. Schulte, John E. Hein, James R. Hoch
-
Patent number: 11969208Abstract: An electrosurgical instrument capable of performing both thermal ablation and electroporation in a minimally invasive manner. The instrument is dimensioned to fit within an instrument channel of an endoscope to enable non-percutaneous insertion. The instrument comprises a radiating tip mounted at a distal end of a coaxial transmission line to receive microwave EM energy from the coaxial transmission line and emit it as a field around the radiating tip. The instrument further comprises an auxiliary transmission line arranged to convey electromagnetic energy having an electroporation waveform to a microelectrode array mounted on the radiating tip. The electroporation waveform may be a radiofrequency or low frequency electromagnetic (EM) signal. The microelectrode array may comprise a plurality of nanoscale conductive electrode elements.Type: GrantFiled: June 1, 2018Date of Patent: April 30, 2024Assignee: CREO MEDICAL LIMITEDInventors: Christopher Paul Hancock, John Bishop
-
Patent number: 11969197Abstract: This document describes methods and devices for treating ventricular fibrillation. For example, this document describes methods of performing electroporation of a ventricle and electroporation catheters. The methods can include inserting a distal end portion of a catheter into a ventricle of a heart of a patient, inflating a balloon coupled to the distal end portion of the catheter, occluding a valve of the heart associated with the ventricle with the balloon, injecting a fluid into the ventricle via an aperture defined by the distal end portion of the catheter, and generating an electrical current via an electrode on the distal end portion of the catheter.Type: GrantFiled: October 15, 2018Date of Patent: April 30, 2024Assignee: Mayo Foundation for Medical Education and ResearchInventors: Christopher V. DeSimone, Samuel J. Asirvatham, Christopher J. McLeod
-
Patent number: 11918751Abstract: A method is used to manufacture a surgical instrument. The surgical instrument includes a catheter and an end effector extending distally from the catheter. The method includes forming at least one electrode, sensor, or thermocouple onto the catheter or the end effector of the surgical instrument by etching or vapor depositing a three-dimensional structure onto a non-conductive material that is layered over a super elastic material.Type: GrantFiled: October 30, 2020Date of Patent: March 5, 2024Assignee: Biosense Webster (Israel) Ltd.Inventors: Shubhayu Basu, Dustin R. Tobey, Pieter E. Van Niekerk, Cesar Fuentes-Ortega
-
Patent number: 11903638Abstract: A medical apparatus includes a probe configured for insertion into a body of a patient and including a plurality of electrodes configured to contact tissue within the body. An electrical signal generator applies bipolar trains of pulses having a voltage amplitude of at least 200 V and having a duration of each of the bipolar pulses less than 20 ?s between at least one pair of the electrodes in contact with the tissue, thereby causing irreversible electroporation of the tissue between the at least one pair of the electrodes. One or more electrical sensors sense an energy dissipated between the at least one pair of the electrodes during the trains of the pulses. A controller controls electrical and temporal parameters of the trains of the pulses applied by the electrical signal generator, responsively to the one or more electrical sensors, so that the dissipated energy satisfies a predefined criterion.Type: GrantFiled: December 11, 2019Date of Patent: February 20, 2024Assignee: Biosense Webster (Israel) Ltd.Inventors: Andres Claudio Altmann, Assaf Govari
-
Patent number: 11877795Abstract: A balloon catheter includes a flexible outer cylinder shaft, a holding member connected to a proximal end portion of the outer cylinder shaft, a sealing member that maintains liquid tightness incorporated in the holding member, a flexible inner cylinder shaft, a tube having a Rockwell hardness of R 115 or more, a flexural modulus of 3.0 to 4.5 GPa, and a thickness of 0.06 to 0.12 mm, a push-in member connected to a proximal end portion of the inner cylinder shaft, a pull-out prevention member connected to the push-in member, and a balloon composed of an elastic material and connected to each of the distal end portion of the outer cylinder shaft and the proximal end portion of the inner cylinder shaft, wherein the tube is inserted over the inner cylinder shaft over an area thereof except for a connecting portion between the balloon and the inner cylinder shaft.Type: GrantFiled: February 8, 2019Date of Patent: January 23, 2024Assignee: Toray Industries, Inc.Inventor: Takahiro Yagi
-
Patent number: 11844561Abstract: Disclosed embodiments include an apparatus, a system and a method for shunting current between first and second electrodes to temporarily reduce current applied through first and second electrodes. In a nonlimiting embodiment, an illustrative apparatus includes first and second electrode couplings configured to electrically engage proximal ends of the first and second electrodes, respectively, the first and second electrodes each having a distal end configured to conduct electrical current generated by a switchable current source therebetween and through an electrically conductive target. A current inrush regulator is configured to temporarily shunt at least a portion of the electrical current generated by the switchable current source to temporarily reduce the electrical current passing between the distal ends of the first and second electrodes through the electrically conductive target.Type: GrantFiled: January 17, 2017Date of Patent: December 19, 2023Assignee: Gyrus ACMI, Inc.Inventor: Brandon J. Shuman
-
Patent number: 11737823Abstract: An antenna system for tissue ablation includes an energy transmission member, a conductive hollow coil member, and a fluid cooling system. The energy transmission member has an inner conductor, an outer conductor, and a dielectric layer between the inner and outer conductors. A portion of the dielectric layer extends distally of a distal end of the outer conductor. The conductive hollow coil member includes a member lumen within a length of the conductive hollow coil member. The conductive hollow coil member is coiled around the portion of the dielectric layer and is separate from the inner conductor. The conductive hollow coil member extends along an entire length of the outer conductor of the energy transmission member. The fluid cooling system is coupled to the conductive hollow coil member for providing a flow of a cooling fluid through the member lumen for cooling the conductive hollow coil member.Type: GrantFiled: October 30, 2019Date of Patent: August 29, 2023Assignee: INTUITIVE SURGICAL OPERATIONS, INC.Inventor: Serena H. Wong
-
Patent number: 11730537Abstract: An antenna system for tissue ablation includes an energy transmission member, an antenna body coupled to the energy transmission member, a fluid source, and a choke member comprising an integrally formed choke body and choke connector electrically coupled to the energy transmission member by the choke connector. The choke body defines an outermost portion of the choke member. The choke body has an axial length and the choke connector extends along a majority of the length of the choke body and contacts the choke body along the majority of the length. The choke connector is in direct contact with a fluid from the fluid source. The choke connector is disposed between the choke body and the energy transmission member. The choke connector forms a delivery path for the fluid between the choke body and the energy transmission member. The choke connector and the choke body are a continuous wire mesh.Type: GrantFiled: November 12, 2019Date of Patent: August 22, 2023Assignee: INTUITIVE SURGICAL OPERATIONS, INC.Inventors: Serena H. Wong, Joseph D. Bogusky
-
Patent number: 11712286Abstract: In a treatment system, an energy treatment instrument includes a pair of grasping pieces. An energy output source outputs electric energy to the energy treatment instrument, thereby applying treatment energy to a blood vessel grasped between the grasping pieces. A measurement section measures a blood pressure at a site related to the grasped blood vessel. A processor controls output of the electric energy from the energy output source based on a measurement result obtained by the measurement section, and thereby switches an actuation state of the energy treatment instrument between a first mode for coagulating the blood vessel and a second mode for coagulating the blood vessel target that is different from the first mode.Type: GrantFiled: October 25, 2018Date of Patent: August 1, 2023Assignee: OLYMPUS CORPORATIONInventors: Tsuyoshi Hayashida, Satomi Sakao, Tatsuro Yamamoto
-
Patent number: 11589911Abstract: The disclosure relates to a nozzle for a device for the dermo-cosmetic treatment of dark skin spots by cyto-selective cryotherapy comprising a spray jet supplied by a tank of pressurised liquified cryogenic gas. The nozzle comprises an upper ring for connecting to a shell, extended by a central body of which the side wall which narrows downwards has longitudinal openings and delimits a gas expansion chamber communicating with a frustoconical dispersal conduit arranged inside an end piece to be applied to the skin and opening to the outside through a discharge port.Type: GrantFiled: December 27, 2018Date of Patent: February 28, 2023Assignee: CRYONOVE PHARMAInventors: Denis Marin, Jean-Christophe Anton