Patents Examined by Amanda Zink
  • Patent number: 10278761
    Abstract: An ablation device may generally comprise a first electrode, a plurality of second electrodes, and a grounding pad. Each of the plurality of second electrodes may comprise a first conductive section, a second conductive section, and a non-conductive section between the first conductive section and the second conductive section. The first electrode and each of the plurality of second electrodes may be coupled to an energy source delivering a series of electrical pulses to tissue to induce cell necrosis by irreversible electroporation.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: May 7, 2019
    Assignee: Ethicon LLC
    Inventors: Gary L. Long, David N. Plescia, Gregory J. Bakos
  • Patent number: 10258406
    Abstract: A computer-implemented system for delivering energy to tissue having a necrotic threshold may generally comprise an electrode array comprising a plurality of electrodes, a central electrode positioned intermediate the plurality of electrodes, and a controller configured to not only apply a first sequence of electrical pulses to the electrode array to induce thermal heating in the tissue and reduce the necrotic threshold of the tissue but also apply a second sequence of electrical pulses to the central electrode to induce cell necrosis in the tissue by irreversible electroporation. Electrical ablation devices and methods of using the same are also described herein.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: April 16, 2019
    Assignee: Ethicon LLC
    Inventor: Gary L. Long
  • Patent number: 10251698
    Abstract: An ablation catheter includes a control handle and a catheter sheath removably connectable to the control handle, the catheter sheath defining a fluid lumen and having a plurality of perforations proximal the distal end of the catheter sheath. The ablation catheter further includes a shape-imparting element inserted into the fluid lumen of the catheter sheath and removably connectable to the control handle. The shape-imparting element is connectable to an RF energy source so that, in use, the shape-imparting elements act as an electrode charging fluid into the fluid lumen to be expelled through the plurality of perforations on the catheter sheath.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: April 9, 2019
    Assignee: CathRx Ltd
    Inventors: Roman Greifeneder, Tyler McKinley Mortimer, David Ogle
  • Patent number: 10231773
    Abstract: System and method for selectively applying electrical energy to structures within or on the surface of a patient's body and controlling the flow of an electrically conductive fluid from the application site to provide or maintain a desired operating condition of the electrosurgical device. An electrosurgical probe is in communication with a fluid transport apparatus through a fluid transport lumen having an opening at an end proximate the application site and disposed proximate the electrosurgical probe. A controller in communication with the fluid transport apparatus provides control signals to the fluid transport apparatus in response to at least one operating parameter associated with the system. Based on the received control signals, the fluid transport apparatus adjusts a flow rate of the electrically conductive fluid at the application site through the fluid transport lumen in response to at least one operating parameter associated with the system.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: March 19, 2019
    Assignee: ArthoCare Corporation
    Inventor: Jean Woloszko
  • Patent number: 10219857
    Abstract: A radio frequency tissue ablation system with a radio frequency generator, the generator comprising a radio frequency source, at least four independently controllable radio frequency outputs, a user interface and a controller configured to delivery radio frequency energy from the radio frequency source to the radio frequency outputs in one of at least two different output configurations in response to a configuration selection made through the user.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: March 5, 2019
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Marshall L. Sherman, Randell L. Werneth, J. Christopher Flaherty
  • Patent number: 10213256
    Abstract: A system for monitoring ablation size is provided and includes a power source including a microprocessor for executing at least one control algorithm. A microwave antenna is configured to deliver microwave energy from the power source to tissue to form an ablation zone. A radiation detection device is operably disposed on the microwave antenna. The radiation detection device is configured to generate a voltage corresponding to a radius of the ablation zone, wherein the radiation detection device is in operative communication with at least one module associated with the power source. The at least one module triggers a signal when a predetermined threshold voltage is measured corresponding to the radius of the ablation zone.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: February 26, 2019
    Assignee: COVIDIEN LP
    Inventor: Joseph D. Brannan
  • Patent number: 10213246
    Abstract: Tissue is treated using a radiofrequency power supply connected to an applicator having a chamber filled with an electrically non-conductive gas surrounded by a thin dielectric wall. A radiofrequency voltage is applied at a level sufficient to ionize the gas into a plasma and to capacitively couple the ionized plasma with the tissue to deliver radiofrequency current to ablate or otherwise treat the tissue.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: February 26, 2019
    Assignee: Hermes Innovations LLC
    Inventors: Akos Toth, Csaba Truckai
  • Patent number: 10213254
    Abstract: An electrophysiologic catheter with an improved control handle is provided. The catheter includes a heat transfer assembly to better dissipate heat in the control handle. The heat transfer assembly includes a pump, a reservoir containing a coolant, a heat transfer member, and a coolant transport network transporting coolant between at least the reservoir and the heat transfer member. In one embodiment, the heat transfer member is located within the control handle as a heat exchanger on the circuit board to receive the coolant for transferring heat from the integrated circuits to the coolant. In another embodiment, the heat transfer member is located on the circuit board directly surrounding the integrated circuits to internally cool the integrated circuit within the control handle. A second heat transfer member is located outside of the control handle as a heat exchanger.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 26, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Eduardo Jimenez, Jeffrey W. Schultz, Rogelio Plascencia, Jr., Mario Solis, Arnold Tuason, Christopher Beeckler, Ariel Garcia, Assaf Govari, Yaron Ephrath, Dean Ponzi
  • Patent number: 10195467
    Abstract: Disclosed herein, among other things, are methods and apparatus related to ablation catheter systems with wireless temperature sensing. The present subject matter provides an ablation catheter system including an ablation catheter configured to ablate a target zone of tissue and at least one temperature sensitive resonator coupled to the ablation catheter. The resonator is configured to wirelessly emit a signal indicative of a sensed temperature in response to an interrogation signal. The ablation catheter system also includes an external device configured to provide the interrogation signal and to receive and decode the emitted signal from the resonator. The temperature sensitive resonator is configured to be placed proximate to and in thermal conduction with the target zone of tissue and to resonate at a frequency dependent upon a temperature of the resonator when excited by the interrogation signal, in various embodiments.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: February 5, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Binh C. Tran, Greg Paul Carpenter
  • Patent number: 10172673
    Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes at least one electrode for ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: January 8, 2019
    Assignee: Farapulse, Inc.
    Inventors: Raju Viswanathan, Gary Long, Jean-Luc Pageard
  • Patent number: 10166059
    Abstract: A treatment instrument includes: a first treatment section which includes a first body including a first contact surface and a second body including a second contact surface; a movement mechanism which is configured to switch between a closed position in which the first contact surface and the second contact surface are close to each other, and an opened position in which the first contact surface and the second contact surface are distant from each other; and a second treatment section which is disposed on a distal side along the longitudinal axis with respect to the first treatment section when the first contact surface and the second contact surface are located in the closed position, and which is configured to apply energy to the living tissue to incise or separate the living tissue.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: January 1, 2019
    Inventors: Yuki Kawaguchi, Shinya Masuda, Tomoyuki Kaga, Hiroto Tomiya
  • Patent number: 10166070
    Abstract: Devices and methods for providing access to the pericardial cavity while reducing risk of myocardial damage. One method includes advancing a distal end of a puncture device towards the heart from a subxiphoid region of a patient wherein the distal end of the puncture device is atraumatic and comprises an energy delivery device; positioning the energy delivery device at a target site on a pericardium of the heart using ultrasound for imaging; and delivering energy from the energy delivery device to a tissue of the target site to create a channel to the pericardial cavity. The method may include repeating one or more of the above steps until the energy delivery device is located within the pericardial cavity. Some embodiments of the method include using supplemental means of monitoring, including medical imaging and using contrast fluid.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: January 1, 2019
    Assignee: Baylis Medical Company Inc.
    Inventors: Gareth Davies, John Paul Urbanski
  • Patent number: 10154869
    Abstract: A method of non-thermally ablating undesirable tissue in the body by application of pulsed, bi-polar, instant charge reversal electrical fields of sufficient energy to cause complete and immediate cell membrane rupture and destruction. Energy is delivered through radio frequency pulses of particular frequencies, wave characteristics, pulse widths and pulse numbers, such that enhanced physical stresses are placed on the cell membrane to cause its immediate and complete destruction thereby spilling the entire cell content and membrane constituents into the extracellular space without denaturing proteins so as to enable an immunological response to destroy and remove the target tissue and similarly marked tissue elsewhere in the subject.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: December 18, 2018
    Inventors: Gary M. Onik, James A. Miessau
  • Patent number: 10130411
    Abstract: In a method of controlling electrosurgical power delivery based on a comparison of sensed tissue impedance to various impedance threshold values, energy is delivered to tissue in a sealing cycle as a series of pulses. An initial pulse has a profile with a preset energy starting value that increases at a ramping rate to a preset end value. Sensed impedance data are monitored throughout each pulse and compared to an impedance threshold value for RF setpoint, an impedance threshold value for cumulative time, and an impedance threshold value for energy cutback. Based on sensed impedance during a pulse, the profile of a subsequent pulse can be modified. In a high impedance event that reflects low tissue presence, energy may be cutback. A sealing cycle is stopped when a cumulative amount of time with an impedance value over the impedance cumulative time threshold value reaches a sealing cycle duration limit.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: November 20, 2018
    Assignee: Aesculap AG
    Inventors: Tim Koss, Miriam H. Taimisto, Roseanne Varner
  • Patent number: 10111705
    Abstract: Electrode placement and connection systems are described which allow for the electrical connection and maintenance of one or more electrodes positioned on a substrate which is subjected to a variety of mechanical stresses. Electrodes may also be formed on flexible circuit assemblies integrated within or along the hood. The circuit assemblies may also provide structural support to the hood during delivery and/or deployment. Such a system may include an imaging hood having an aperture through which transparent fluid is flowed and one or more electrodes positioned along or about the hood. As the hood is configured between a low-profile and opened configuration, these electrodes may remain electrically coupled despite the mechanical stresses subjected to the electrodes and the connections thereto.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: October 30, 2018
    Inventors: Jason Paul Watson, Edmund Tam, Vahid Saadat
  • Patent number: 10098692
    Abstract: Methods are provided for monitoring and controlling tissue ablation using RF energy delivered by an imaging ablation catheter under direct visualization, using the control and modulation of a set of ablation parameters based on direct optical imaging of the tissue surface via the imaging ablation catheter, where a set of optical image-derived parameters modulates the setting of a subset of Radio Frequency dosing parameters. The ablation dosing algorithms based on image-derived information can be implemented manually or in semi-automated or automated forms.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: October 16, 2018
    Inventors: John B. Allison, Jean-Luc Pageard, Brian Pedersen, Celina Escobedo
  • Patent number: 10076384
    Abstract: A microwave ablation system and method is disclosed comprising a balloon catheter apparatus and a control system. The balloon catheter apparatus comprises a catheter configured to house a coaxial cable and one or more coolant channels, an inflatable balloon located at the distal end of the catheter, and an antenna positioned in the inflatable balloon and in communication with the coaxial cable. The control system comprises a fluid pump configured to introduce fluid into a proximal end of the catheter, a power amplifier capable of generating microwave energy for delivery to the target tissue zone for at least one energy application cycle ranging from 60 seconds to 600 seconds at a frequency ranging from 2.4 GHz to 2.5 GHz, and a computer system configured to monitor and/or regulate the delivery of microwave energy to the target tissue, the fluid pump, at least one sensor, and antenna reflected power.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: September 18, 2018
    Assignee: Symple Surgical, Inc.
    Inventors: Daniel Kasprzyk, Justin Preston, Seth Crozier, Sohail Desai, Roger D Watkins, Balamurugan Sundaram, Sureshbabu Sundaram
  • Patent number: 10070911
    Abstract: According to some embodiments, a method of treating a subject having diabetes or symptoms associated with diabetes is provided. The method includes delivering a neuromodulation catheter within a vessel (e.g., hepatic artery) having surrounding nerves that innervate the liver (e.g., sympathetic nerves of the hepatic plexus). The method may also include modulating (e.g., disrupting, ablating, stimulating) the nerves by mechanical compression, energy delivery, or fluid delivery.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: September 11, 2018
    Assignee: Metavention, Inc.
    Inventors: Bobak Robert Azamian, Jonathan Allen Coe, Scott Bradley Vafai
  • Patent number: 10065032
    Abstract: A method of implanting a lead in the left heart cavity includes introducing the lead into the right heart cavity. The lead includes a lead body having a deformable sheath, a proximal end having an electrical connector, a distal end including a projecting helical screw electrode, and a conductor extending along the sheath, electrically connecting the electrical connector and the helical screw. The method further includes positioning the distal end of the lead to abut a septum wall between the right and left heart cavity. The electrical connector is connected to an RF puncture generator and RF energy is applied to the screw while providing rotational movement to the screw for advancement through the septum wall. The method further includes positioning the screw at a target stimulation site in the left heart cavity and providing rotational movement to the screw to anchor the lead at the target site.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: September 4, 2018
    Assignee: Sorin CRM SAS
    Inventor: Jean-Fran├žois Ollivier
  • Patent number: 10058373
    Abstract: A treatment instrument includes a treatment body that includes a treatment surface provided in the first clamp surface, the treatment surface protruding toward the second clamp surface in response to the supply of heat energy and increasing pressure on the living tissue to treat the living tissue in cooperation with the action of the heat energy.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: August 28, 2018
    Inventors: Tomoyuki Takashino, Hiroaki Ichikawa, Yusuke Takei, Kazuhiro Tanaka