Patents Examined by Abigail M Ziegler
  • Patent number: 12114919
    Abstract: 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: Grant
    Filed: October 22, 2019
    Date of Patent: October 15, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Bruce R. Forsyth, Larry D. Canady, Jr., Hong Cao, Timothy A. Ostroot, Jonathan Tyler Gorzycki
  • Patent number: 12096976
    Abstract: 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: Grant
    Filed: November 26, 2018
    Date of Patent: September 24, 2024
    Assignee: AFFERA, INC.
    Inventors: Doron Harlev, Paul B. Hultz, Robert Alan Mest
  • Patent number: 12064174
    Abstract: 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: Grant
    Filed: January 28, 2021
    Date of Patent: August 20, 2024
    Assignee: Hepta Medical SAS
    Inventors: Robert C. Allison, John McCarthy, Tim Lenihan
  • Patent number: 12059199
    Abstract: 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: Grant
    Filed: November 14, 2017
    Date of Patent: August 13, 2024
    Assignee: TAEWOONG MEDICAL CO., LTD
    Inventors: Kyong Min Shin, Kwang Seok Kim, Se Ik Park, Seong Wook Park
  • Patent number: 12029475
    Abstract: 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: Grant
    Filed: April 11, 2019
    Date of Patent: July 9, 2024
    Assignee: MAGNETO THROMBECTOMY SOLUTIONS LTD.
    Inventors: Yuval Taff, Gal Stern, Itzhak Orion
  • Patent number: 11998258
    Abstract: 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: Grant
    Filed: September 5, 2019
    Date of Patent: June 4, 2024
    Assignee: Cilag GmbH International
    Inventors: 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: 11969208
    Abstract: 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: Grant
    Filed: June 1, 2018
    Date of Patent: April 30, 2024
    Assignee: CREO MEDICAL LIMITED
    Inventors: Christopher Paul Hancock, John Bishop
  • Patent number: 11969197
    Abstract: 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: Grant
    Filed: October 15, 2018
    Date of Patent: April 30, 2024
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Christopher V. DeSimone, Samuel J. Asirvatham, Christopher J. McLeod
  • Patent number: 11918751
    Abstract: 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: Grant
    Filed: October 30, 2020
    Date of Patent: March 5, 2024
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Shubhayu Basu, Dustin R. Tobey, Pieter E. Van Niekerk, Cesar Fuentes-Ortega
  • Patent number: 11903638
    Abstract: 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: Grant
    Filed: December 11, 2019
    Date of Patent: February 20, 2024
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Andres Claudio Altmann, Assaf Govari
  • Patent number: 11877795
    Abstract: 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: Grant
    Filed: February 8, 2019
    Date of Patent: January 23, 2024
    Assignee: Toray Industries, Inc.
    Inventor: Takahiro Yagi
  • Patent number: 11844561
    Abstract: 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: Grant
    Filed: January 17, 2017
    Date of Patent: December 19, 2023
    Assignee: Gyrus ACMI, Inc.
    Inventor: Brandon J. Shuman
  • Patent number: 11737823
    Abstract: 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: Grant
    Filed: October 30, 2019
    Date of Patent: August 29, 2023
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventor: Serena H. Wong
  • Patent number: 11730537
    Abstract: 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: Grant
    Filed: November 12, 2019
    Date of Patent: August 22, 2023
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Serena H. Wong, Joseph D. Bogusky
  • Patent number: 11712286
    Abstract: 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: Grant
    Filed: October 25, 2018
    Date of Patent: August 1, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Tsuyoshi Hayashida, Satomi Sakao, Tatsuro Yamamoto
  • Patent number: 11589911
    Abstract: 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: Grant
    Filed: December 27, 2018
    Date of Patent: February 28, 2023
    Assignee: CRYONOVE PHARMA
    Inventors: Denis Marin, Jean-Christophe Anton