Patents Examined by Tigist S Demie
  • Patent number: 11172980
    Abstract: A knife configured for use with an electrosurgical forceps having curved jaw members and a method of manufacturing the same. The knife includes a distal body having an inner side and an outer side, a first etching on the outer side of the distal body defining a distal cutting edge and a second etching on the outer side of the distal body extending along a portion of a length of the distal body to define relatively protruded and relatively recessed surfaces extending along a portion of the length of the distal body on the outer side thereof.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: November 16, 2021
    Assignee: Covidien LP
    Inventors: Kelley D. Goodman, David Michael Keffeler, Craig V. Krastins, Jennifer E. Lee, Robert F. McCullough, Daniel W. Mercier, Grant T. Sims
  • Patent number: 11147609
    Abstract: A cordless surgical knife comprises an enclosure and a blade extending from the enclosure. The enclosure contains a differential amplifier circuit configured to provide an RF signal, an output monitor feedback circuit, a return monitor feedback circuit, and a microprocessor that receives data from the feedback circuits and adjusts the RF signal. The enclosure contains a receiving antenna that is operable to receive a wireless signal associated with the RF signal from tissue of a patient. A transmitting antenna may be in electrical contact with tissue of the patient and transmit the wireless signal. Optionally, both the receiving antenna and transmitting antenna include at least two separate inductive circuits aligned on different planes, or each of the receiving antenna and the transmitting antennas is encapsulated inside an enclosure floating in a liquid so that the antennas are aligned by gravity.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 19, 2021
    Assignee: Fulmer Instruments, LLC
    Inventors: Eugene A Eighmy, Benjamin B Fulmer, Lloyd G. B. Cooper
  • Patent number: 11129665
    Abstract: The present disclosure is directed to an electrosurgical apparatus for generating plasma in electrosurgical applications. The electrosurgical apparatus includes an end effector disposed on a distal portion of a tube of the electrosurgical apparatus. The end effector mixes ambient air with an inert gas to increase the production of radical species. In one aspect of the present disclosure, the end effector includes a cylindrical augmenter disposed over a distal end of the tube with one or more tilted vanes disposed between the cylindrical augmenter and the tube. In another aspect of the present disclosure, the end effector includes one or more tilted vanes disposed on an inner surface of a wall of the distal end of the tube. In another aspect of the present disclosure, the end effector includes one or more advection apertures on the wall of the distal end of the tube.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 28, 2021
    Assignee: Apyx Medical Corporation
    Inventor: Gregory A. Konesky
  • Patent number: 11116656
    Abstract: A thermal control unit controls the temperature of a fluid delivered to one or more thermal transfer devices (e.g. thermal pads) in contact with a patient. The thermal control unit generates thermal data while being used to treat the patient and is adapted to receive thermal history data previously generated by a different thermal control unit in the treatment of that patient. Both the current and previous thermal data are displayable on the thermal control unit currently being used, thereby giving the caregiver a complete picture of the thermal history of the patient. The thermal control unit may also be adapted to transmit its thermal data, as well as the thermal history data previously received from the other thermal control unit, to still another thermal control unit. The thermal history data transfer may take place via a cable, wirelessly, by a portable flash drive, or by other means.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: September 14, 2021
    Assignee: Stryker Corporation
    Inventors: Gregory S. Taylor, Christopher John Hopper, Marco Constant
  • Patent number: 11116657
    Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: September 14, 2021
    Assignee: ZOLL Circulation, Inc.
    Inventors: Jeremy Thomas Dabrowiak, Jessica Megan Clayton, John Thomas Buckley, Christo Petrov Pamichev, Craig Wendell Pendry, Paul Eric Peterson, Richard Allen Smith, Sean W Yip, John William Jacobsen
  • Patent number: 11116563
    Abstract: A plurality of control-signal generators are configured to generate respective control signals having respective control-signal amplitudes and different respective control-signal frequencies, and a plurality of signal adders are configured to produce respective composite signals for application to a subject, by adding the control signals to respective ablation signals having respective ablation-signal amplitudes. The control-signal generators are configured to generate the control signals such that respective ratios between the control-signal amplitudes and the ablation-signal amplitudes are constant during the application of the composite signals to the subject.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: September 14, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Michael Levin, Boris Ashkinezer, Eyal Rotman, Shlomo Fried
  • Patent number: 11096739
    Abstract: Methods and devices for allowing articulation of an end effector on a surgical instrument are provided. In one embodiment, a surgical device can include a flexible neck portion having an end effector coupled to a distal end thereof. The flexible neck portion is configured to bend to as to allow the end effector to articulate. The flexible neck portion can include a monolithic flexible outer shell defining an inner lumen extending therethrough. At least one flexible divider can be disposed within the inner lumen such that it separates the outer shell into elongate pathways configured to receive articulation members extending through the shaft assembly and the flexible neck and coupled to the end effector to cause articulating movement thereof.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: August 24, 2021
    Assignee: Cilag GmbH International
    Inventors: Randolph C. Stewart, Geoffrey S. Strobl, Barry Worrell
  • Patent number: 11090099
    Abstract: A forceps includes a shaft defining first opposed distal recesses, a drive bar slidably disposed within the shaft and defining second opposed distal recesses, and an end effector assembly including first and second jaw members. Each jaw member defines a proximal flange and a distal jaw body. The proximal flanges each define an aperture and a cam slot. A pivot pin extends through the apertures with ends of the pivot pin extending outwardly from the jaw members to be at least partially disposed within the first recesses and fixedly engaged therewith. A drive pin extends through the cam slots with ends of the drive pin extending outwardly from the jaw members to be at least partially disposed within the second recesses and fixedly engaged therewith such that translation of the drive bar relative to the end effector assembly pivots the jaw members between spaced-apart and approximated positions.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: August 17, 2021
    Assignee: Covidien LP
    Inventor: James D. Allen, IV
  • Patent number: 11090082
    Abstract: A colpotomy system includes a colpotomy cup that extends to a distal surface and defines a longitudinal axis. The colpotomy system further includes a cutter operably coupled to the colpotomy cup and configured to travel along an arcuate path defined about the distal surface of the colpotomy cup. The cutter actuatable to separate a uterus from a vagina as the cutter rotates about the longitudinal axis of the colpotomy cup.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 17, 2021
    Assignee: COVIDIEN LP
    Inventors: Jason G. Weihe, James D. Allen, IV, Ansel Dow, Thomas E. Drochner, Stuart R. Hart, Michael B. Lyons, Scott J. Prior, John R. Twomey
  • Patent number: 11090113
    Abstract: A microwave ablation antenna assembly (20) incorporates a choke assembly (40) having a dielectric element (42) and a conducting element (48). The conducting element (48) is chosen from a group of elements of fixed length, but with differing electrical lengths for providing cancellation properties for different wavelengths of microwave energy.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 17, 2021
    Assignee: Gyrus Medical Limited
    Inventor: David Nicholas Williams
  • Patent number: 11058483
    Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: July 13, 2021
    Assignee: CREO MEDICAL LIMITED
    Inventors: Christopher Hancock, Steven Morris, Patrick Burn, Louis Turner, George Ullrich, David Webb
  • Patent number: 11039875
    Abstract: A monopolar suction coagulator device is provided for use with a vacuum source and an electrosurgical generator to perform a coagulation procedure and an evacuation procedure at a surgical site. The device includes an active electrode portion at the distal end of a probe, and the probe is formed of a thermally conductive and electrically conductive, non-stick metal material along all or substantially all of its length, to aid in heat dissipation during a coagulation procedure.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: June 22, 2021
    Assignee: Kirwan Surgical Products LLC
    Inventor: Lawrence T. Kirwan, Jr.
  • Patent number: 11026738
    Abstract: The invention disclosed here generally relates to devices that can modify a property of a nerve. Specifically, the subject invention is contemplated to modify the posterior nasal nerve signal conduction in such a way so as to reduce the signals transmitted to the nasal cavity. Reduction or interruption of the nerve signals results in the reduction of the distal organ activity. In particular, embodiments of the present invention allow for increased lateral contact or apposition of the target tissue region having at least one posterior nasal nerve with the end effector surface by lateral and/or longitudinal translation of the end effector relative to the surgical probe shaft. This improved lateral surface contact has several benefits, including improved patient outcomes and patient safety as the end effector is adequately in contact with target tissue for subsequent ablation therapy.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 8, 2021
    Assignee: Arrinex, Inc.
    Inventors: Vahid Saadat, William Jason Fox, Mojgan Saadat
  • Patent number: 10993733
    Abstract: A forceps includes an end effector assembly having first and second jaw members, each including a proximal flange and a distal jaw body defining a tissue-treating surface. The second jaw member is both proximally offset and spaced-apart from the first jaw member. One or more resilient bands extends between and interconnects the proximal flanges of the jaw members. The resilient band(s) is configured to bias the first and second jaw members towards an open position. The resilient band(s) is configured to flex in response to distal translation of the second jaw member relative to the first jaw member to thereby move the second jaw member relative to the first jaw member to a closed position for grasping tissue between the tissue-treating surfaces thereof. In the closed position, the second jaw member is disposed in an aligned orientation and is approximated relative to the first jaw member.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: May 4, 2021
    Assignee: Covidien LP
    Inventor: Jason G. Weihe
  • Patent number: 10993827
    Abstract: This application relates to a hand-held cooling device for supplying a cryogen to a target region for cryotherapy. The device can include a cryogen container configured to contain a first cryogen having a first temperature and a nozzle configured to spray a first modified cryogen to the target region, the first modified cryogen having a second temperature higher than the first temperature. The device can also include a cryogen temperature regulator configured to receive the first cryogen and output the first modified cryogen to the nozzle, the cryogen temperature regulator disposed closer to the nozzle than the cryogen container. The cryogen temperature regulator can include a holder tube, a porous structure disposed inside a holder tube and a heater disposed around the holder tube and heating the holder tube so as to increase the first temperature to the second temperature while the first cryogen passes through the porous structure.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: May 4, 2021
    Assignee: RecensMedical, Inc.
    Inventor: Gun-Ho Kim
  • Patent number: 10993829
    Abstract: A thermal control unit supplies temperature controlled fluid to one or more thermal pads used to control the temperature of a patient. The thermal control unit includes a fluid outlet, fluid inlet, heat exchanger, pump, and a controller. The controller receives first and second data from at least two different sources to determine if the patient is shivering or not. The two different sources may include a temperature sensor adapted to detect a temperature of the fluid, a temperature sensor adapted to detect a temperature of the patient, a tissue oxygenation sensor, a vibration/motion sensor, a thermal image sensor, an electromyograph, and/or other sensors. In some embodiments, the thermal control unit takes one or more automatic actions in response to detection of patient shivering.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 4, 2021
    Assignee: Stryker Corporation
    Inventors: Gregory S. Taylor, Marko N. Kostic, Marco Constant, Christopher John Hopper
  • Patent number: 10980592
    Abstract: A method of treating a skin tissue area (3) having a skin surface (5) is provided. The method comprises the steps of: deforming the skin tissue area into a deformed shape comprising a plurality of folds (17) in the skin tissue area; arranging radiofrequency electrodes (13) in contact with the skin surface on opposite sides of the deformed skin tissue area; and, while maintaining the skin tissue area in said deformed shape, providing a spatially continuous radiofrequency energy flow between the radiofrequency electrodes on opposite sides of the deformed skin tissue area through the deformed skin tissue area, thereby heating at least a portion (19) of the deformed skin tissue area; and releasing the skin tissue area from said deformed shape, thereby deforming said heated portion (19) into a wave-shaped zone of heated skin tissue having a depth relative to the skin surface that varies between a minimum and a maximum value in a direction between said opposite sides.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: April 20, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Margaret Ruth Horton, Martin Jurna, Jonathan Alambra Palero
  • Patent number: 10973574
    Abstract: A method, including selecting a first maximum radiofrequency (RF) power to be delivered by an electrode within a range of 70 W-100 W, and selecting a second maximum RF power to be delivered by the electrode within a range of 20 W-60 W. The method also includes selecting an allowable force on the electrode within a range of 5 g-50 g, selecting a maximum allowable temperature, of tissue to be ablated, within a range of 55° C.-65° C., and selecting an irrigation rate for providing irrigation fluid to the electrode within a range of 8-45 ml/min. The method further includes performing an ablation of tissue using the selected values by initially using the first power, switching to the second power after a predefined time between 3 s and 6 s, and terminating the ablation after a total time for the ablation between 10 s and 20 s.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: April 13, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Assaf Govari, Yaron Ephrath, Andres Claudio Altmann, Israel Zilberman
  • Patent number: 10973564
    Abstract: An integrated gas-enhanced electrosurgical generator. The generator comprises a high frequency power module, a low frequency power module and a gas module. The high frequency power module adapted to generate an electrical energy having a band of frequencies centered around a first frequency, wherein the electrical energy has a first power as the first frequency and a second power lower than the first power at a second frequency lower than the first frequency. The low frequency power module having an input connected to an output of the high frequency module. The low frequency module comprises a resonant transformer comprising a ferrite core, a primary coil and a secondary coil, the secondary coil having a larger number of turns than the primary coil, wherein the resonant transformer has a resonant frequency equal to the second frequency. The gas module is adapted to control a flow of an inert gas.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: April 13, 2021
    Assignee: U.S. Patent Innovations LLC
    Inventors: Jerome Canady, Alexey Shashurin, Michael Keidar, Taisen Zhuang
  • Patent number: 10966779
    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 has electrodes releasably coupleable to the jaw members and adapted to connect to a source of electrosurgical energy to allow selective conduction of electrosurgical energy through tissue held therebetween to effect a tissue seal. An electrically conductive cutting element is disposed on at least one of the electrodes and is adapted to connect to the source of electrosurgical energy to allow selective conduction of electrosurgical energy through tissue held between the electrodes to effect a tissue cut.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: April 6, 2021
    Assignee: Covidien LP
    Inventors: Keir Hart, Rebecca J. Coulson, Gary M. Couture, Geneva Ladtkow, Weng-Kai K. Lee, Kenneth E. Netzel, Prakash Manley, Arlen J. Reschke, Anthony D. Ricke, Jeffrey R. Townsend