Patents Examined by Sean W Collins
  • Patent number: 10549127
    Abstract: Systems for nerve and tissue modulation are disclosed. An example system may include an intravascular nerve modulation system including an elongated shaft having a proximal end region and a distal end region. The system may further include a bar element extending distally from the distal end region of the elongated shaft and one or more ablation transducers affixed to the bar element.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: February 4, 2020
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Binh C. Tran, Mark L. Jenson
  • Patent number: 10548665
    Abstract: A sub-microsecond pulsed electric field generator is disclosed. The field generator includes a controller, which generates a power supply control signal and generates a pulse generator control signal, and a power supply, which receives the power supply control signal and generates one or more power voltages based on the received power supply control signal. The field generator also includes a pulse generator which receives the power voltages and the pulse generator control signal, and generates one or more pulses based on the power voltages and based on the pulse generator control signal. The controller receives feedback signals representing a value of a characteristic of or a result of the pulses and generates at least one of the power supply control signal and the pulse generator control signal based on the received feedback signals.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: February 4, 2020
    Assignee: PULSE BIOSCIENCES, INC.
    Inventors: Shu Xiao, Brian G. Athos, Mark P. Kreis, David J. Danitz, Darrin R. Uecker
  • Patent number: 10537377
    Abstract: An electrosurgical generator includes: a power supply configured to output a direct current; an energy metering stage including at least one metering switching component operated by a metering switching waveform, the energy metering stage configured to generate a metered energy packet from the direct current; a power converter coupled to the energy metering stage, the power converter including at least one power switching element operated by a power switching waveform, the power converter configured to generate a radio frequency half cycle based on the metered energy packet; and a controller coupled to the power converter, the controller is configured to modulate the metering switching waveform and the power switching waveform.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: January 21, 2020
    Assignee: Covidien LP
    Inventors: Daniel A. Friedrichs, Robert B. Smith, Steven C. Rupp
  • Patent number: 10537376
    Abstract: A high-frequency surgical device having a high-frequency generator, which produces a high-frequency output signal for treating, in particular for cutting or coagulating, biological tissue, the high-frequency generator being designed in such a way that the output signal of the high-frequency generator has a predetermined fundamental frequency and a modulation apparatus being provided, which is used to modulate the output signal with a modulation frequency, the modulation frequency being smaller than the fundamental frequency. The high-frequency surgical device is characterized in that the modulation frequency is at least 100 kHz, and in that the output signal can be modulated in such a way that a crest factor of the modulated output signal suitable for a specific application of the high-frequency surgical device arises.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: January 21, 2020
    Assignee: ERBE ELEKTROMEDIZIN GMBH
    Inventor: Martin Hagg
  • Patent number: 10531909
    Abstract: A treatment instrument includes a first treatment portion including a first member with a first contact surface and a second member with a second contact surface; a movement mechanism to switch between a closed position where the first and second contact surfaces are close to each other and an open position where the first and second contact surfaces are separated each other; and a second treatment portion juxtaposed to the first treatment portion. A distal end of the second treatment portion is located at a distal side in the longitudinal axis than a distal end of the first treatment portion on the closed position.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: January 14, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Hiroto Tomiya, Shinya Masuda, Yuki Kawaguchi, Tomoyuki Kaga
  • Patent number: 10499977
    Abstract: A method of surgery utilizing an end effector assembly having first and second jaw members defining a grasping area therebetween and a tissue-treating area therebetween. Each of the first and second jaw members defines a knife channel positioned within the grasping area and outside of the tissue-treating area. The end effector assembly is positioned such that the knife channels are positioned adjacent tissue to be removed. Thereafter, the first and/or second jaw members are moved from a spaced-apart position to an approximated position to grasp tissue therebetween, the jaw members are energized for conducting energy through tissue disposed within the tissue-treating area to treat tissue disposed within the tissue-treating area, and a knife is advanced through the knife channels to cut tissue adjacent the tissue-treating area thereby separating tissue.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 10, 2019
    Assignee: Covidien LP
    Inventors: David J. Van Tol, Gary M. Couture, Robert M. Sharp, John R. Twomey, Barry J. Kaup
  • Patent number: 10499975
    Abstract: A bipolar forceps includes a mechanical forceps including first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot. A disposable housing is configured to releasably couple to at least one of the shafts and an electrode assembly is configured to releasably couple to the disposable housing. The electrode assembly includes electrodes releasably coupleable to the jaw members. At least one of the electrodes includes a knife channel configured to receive a knife blade there through to cut tissue grasped between the jaw members. An actuation mechanism is configured to selectively advance the knife blade through the knife channel to cut tissue.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: December 10, 2019
    Assignee: COVIDIEN LP
    Inventors: Weijiang Ding, Peixiong Yi, Xiucheng Shen, Duane E. Kerr, Sarfraz Ahamed Syed
  • Patent number: 10499976
    Abstract: A surgical instrument includes an end effector assembly having first and second jaw members each jaw member defining an opposed surface. The jaw members are movable between a spaced-apart position and an approximated position for grasping tissue within a grasping area. First and second tissue-treating plates are disposed on the jaw members and adapted to connect to a source of energy for treating tissue disposed within a tissue-treating. Each jaw member defines a knife channel positioned within the grasping area and outside of the tissue-treating area. A knife is selectively movable between a retracted position, wherein the knife is positioned proximally of the jaw members, and an extended position, wherein the knife extends at least partially through the knife channels of the jaw members to cut tissue positioned adjacent the tissue-treating area.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 10, 2019
    Assignee: Covidien LP
    Inventors: David J. Van Tol, Gary M. Couture, Robert M. Sharp, John R. Twomey, Barry J. Kaup
  • Patent number: 10492848
    Abstract: An electrosurgical generator includes a power supply configured to output a DC waveform, a current or voltage source coupled to the power supply and a power converter coupled to the current or voltage source, the power converter including at least one power switching element and a power inductor having an inductance value during switching of the at least one power switching element. The electrosurgical generator further includes a zero voltage switching (ZVS) inducing circuit coupled to the power converter at a switching node, the ZVS inducing circuit including an inductor having an inductance which is greater than the inductance value of the power inductor of the at least one power switching element.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: December 3, 2019
    Assignee: Covidien LP
    Inventors: Steven C. Rupp, Robert B. Smith, Daniel A. Friedrichs
  • Patent number: 10478243
    Abstract: A method of surgery includes grasping tissue between tissue-contacting surfaces of first and second jaw members of an end effector assembly, supplying energy to at least one of the tissue-contacting surfaces to treat tissue grasped therebetween, and translating and/or manipulating the end effector assembly to cut tissue in a ripping fashion.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: November 19, 2019
    Assignee: COVIDIEN LP
    Inventors: Gary M. Couture, Ryan C. Artale, John R. Twomey, Rebecca J. Coulson, David J. Van Tol
  • Patent number: 10478249
    Abstract: Apparatus and methods are described, including a method for use with tissue of a renal nerve (770) passing longitudinally within a wall of a renal artery (8) of a subject. Using one or more stimulating electrodes (850a, 850b) disposed within the renal artery, the tissue is stimulated by passing a stimulating current through the wall of the renal artery. Using a sensor (26), a rate of change of blood pressure of the subject is sensed, following the start of the stimulation of the tissue. In response to the rate of change, it is decided whether to ablate the tissue, and in response to deciding to ablate the tissue, the tissue is ablated. Other applications are also described.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: November 19, 2019
    Assignee: PYTHAGORAS MEDICAL LTD.
    Inventors: Yossi Gross, Gideon Meiry, Yehuda Zadok
  • Patent number: 10456188
    Abstract: A heating treatment apparatus to treat a living tissue by heating the living tissue includes a first holding member and a second holding member, a first heat generating element provided on the first holding member, a second heat generating element provided on the second holding member, a power supply unit supplying electric power to cause the first heat generating element and the second heat generating element to generate heat, and a control unit controlling operations of the power supply unit. The control unit switches a mode between a first mode and a second mode during treatment of the living tissue. Temperatures of the first heat generating element and the second heat generating element are controlled to the same temperature in the first mode and to different temperatures in the second mode.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: October 29, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Sadayoshi Takami, Yoshitaka Honda, Takashi Irisawa, Kazue Tanaka, Toshifumi Katsuragi
  • Patent number: 10441341
    Abstract: A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: October 15, 2019
    Assignee: Olympus Corporation
    Inventors: Yoshitaka Honda, Kazue Tanaka, Takashi Irisawa, Sadayoshi Takami
  • Patent number: 10433899
    Abstract: An electrosurgical electrode comprises an elongated body having a cross-sectional area and longitudinal side edges forming longitudinal cutting edges adapted for electrosurgical dissection along a plane. The body has a configuration, wherein: the thickness of the side edge is greater than 0.01?, forming two or more cutting edges, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.0004 in2 per cutting edge; the thickness of the side edge is less than or equal to 0.01?, forming only one cutting edge, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.000150 in2 per cutting edge; or the thickness of a first side edge is greater than 0.01? and the thickness of a second side edge is less than or equal to 0.01?, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.001 per cutting edge.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 8, 2019
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Paul R. Borgmeier, Brian J. Walter, Darcy W. Greep
  • Patent number: 10433898
    Abstract: An electrosurgical electrode comprises an elongated body having a cross-sectional area and longitudinal side edges forming longitudinal cutting edges adapted for electrosurgical dissection along a plane. The body has a configuration, wherein: the thickness of the side edge is less than or equal to 0.01?, forming only one cutting edge, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.000150 in2 per cutting edge; or the thickness of a first side edge is greater than 0.01? and the thickness of a second side edge is less than or equal to 0.01?, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.001 in2 per cutting edge.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 8, 2019
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Paul R. Borgmeier, Brian J. Walter, Darcy W. Greep
  • Patent number: 10426543
    Abstract: A forceps includes at least one shaft and a housing defining a cavity. An end effector assembly is attached to the shaft(s) and includes first and second jaw members movable relative to one another from a spaced apart position to a closer position. A knife channel defined within the jaw members is configured to receive a knife. A trigger assembly is disposed within the cavity and includes a trigger having a first link pivotably coupled at one end to the trigger and slidingly engaged to a second link at the other end. The second link includes a first end telescopically slideable relative to the first link upon actuation of the trigger through a range of motion and a second end pivotably coupled to a third link which, in turn, couples to the knife. Actuation of the trigger translates the knife through the knife channel.
    Type: Grant
    Filed: January 23, 2016
    Date of Patent: October 1, 2019
    Assignee: COVIDIEN LP
    Inventors: Hoon Cho, Seokjoo Chang
  • Patent number: 10413347
    Abstract: A radio-frequency (RF) amplifier having a direct response to an arbitrary signal source to output one or more electrosurgical waveforms within an energy activation request, is disclosed. The RF amplifier includes a phase compensator coupled to an RF arbitrary source, the phase compensator configured to generate a reference signal as a function of an arbitrary RF signal from the RF arbitrary source and a phase control signal; at least one error correction amplifier coupled to the phase compensator, the at least one error correction amplifier configured to output a control signal at least as a function of the reference signal; and at least one power component coupled to the at least one error correction amplifier and to a high voltage power source configured to supply high voltage direct current thereto, the at least one power component configured to operate in response to the control signal to generate at least one component of the at least one electrosurgical waveform.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: September 17, 2019
    Assignee: COVIDIEN LP
    Inventor: James H. Orszulak
  • Patent number: 10390875
    Abstract: A system and apparatus for automatic smoke evacuation using an RF sensor. The system and apparatus utilizes an RF sensor for automatic activation of an evacuator that evacuates smoke and/or debris during the use of any electrosurgical instrument or surgical instrument that is capable of generating smoke and/or debris and capable of producing a radiofrequency during its operation. Exemplary embodiments of the system and apparatus for automatic smoke evacuation include both wired and wireless embodiments.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: August 27, 2019
    Assignee: I.C. Medical, Inc.
    Inventor: Ioan Cosmescu
  • Patent number: 10383685
    Abstract: A method is provided, comprising: (1) applying an excitatory current to renal nerve fibers of a subject; (2) determining a change in a parameter of the subject in response to the excitatory current, the parameter being a fastest rate of increase in arterial pressure during a systolic upstroke of an arterial pressure wave of the subject; (3) in response to the change, deciding whether to ablate the renal nerve fibers; and (4) in response to the deciding, applying ablation energy to the renal nerve fibers. Other embodiments are also described.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: August 20, 2019
    Assignee: PYTHAGORAS MEDICAL LTD.
    Inventors: Yossi Gross, Yehuda Zadok
  • Patent number: 10376308
    Abstract: A method for treating a heart failure patient by ablating a nerve of the splanchnic sympathetic nervous system to increase venous capacitance and reduce pulmonary blood pressure. A method including: inserting a catheter into a vein adjacent the nerve, applying stimulation energy and observing hemodynamic effects, applying ablation energy and observing hemodynamic effects, applying simulation energy after the ablation and observing hemodynamic effects.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: August 13, 2019
    Assignee: Axon Therapies, Inc.
    Inventors: Howard Levin, Mark Gelfand