Patents Examined by Linda Dvorak
  • Patent number: 10188457
    Abstract: A catheter and catheter system for treatment of a blood vessel of a patient include an elongate flexible catheter body with a radially expandable structure. A plurality of electrodes or other electrosurgical energy delivery surfaces can radially engage material to be treated when the structure expands. A material detector near the distal end of the catheter body may measure circumferential material distribution, and a power source selectively energizes the electrodes to eccentrically treat of a body lumen.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 29, 2019
    Assignee: Vessix Vascular, Inc.
    Inventors: Thomas A. Steinke, Corbett W. Stone, Stephen O. Ross, Brian S. Kelleher, Raphael M. Michel, Donald H. Koenig
  • Patent number: 10143511
    Abstract: A living tissue to be treated is brought into contact with a first high-frequency electrode having high thermal conductivity. A substrate on which an electric resistance pattern is formed is longer than the first electrode. The substrate includes an end portion projected from the first high-frequency electrode. A first lead connection portion electrically connected to the electric resistance pattern is formed on the projected end portion. The substrate is pasted to the first electrode by use of a high-thermal-conductivity heat-resistant adhesive sheet. A lead line for applying power to the electric resistance pattern is arranged in the first lead connection portion where it extends in the longitudinal direction of the first electrode and on the side close to the first electrode.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: December 4, 2018
    Inventor: Shinji Yasunaga
  • Patent number: 10143519
    Abstract: A method of treating a patient is described herein. The method can include the steps of identifying a target that contains biological tissue and directing one or more pulses of electromagnetic radiation at the target. The pulses of electromagnetic radiation can cause a temperature increase per unit of time in the biological tissue. Additionally, the temperature increase per unit of time can cause the change in the cell function in the biological tissue and can be within a range of approximately one degree Celsius per second to approximately one degree Celsius per microsecond.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: December 4, 2018
    Inventors: Karl H. Schoenbach, Shu Xiao
  • Patent number: 10130414
    Abstract: A sealing instrument (10) including two branches (15, 16) with sealing jaws (19, 20, 36, 37) acted on by a sealing voltage preferably between 80 and 120 volts. Tissue receptacles (53, 54) are separated from one another by a wall-like extension (24), which at its lower edge carries a cutting electrode (31), are defined between the branches (15, 16). A cutting voltage from 300 to 500 volts is applied between a branch (16) and the cutting electrode. When the branches are closed the grasped tissue is sealed simultaneously between the sealing jaws (19, 36 and 20, 37) and is severed by the cutting electrode (31). Even though the tissue is severed completely; for example after 0.3 to 0.5 seconds and the sealing requires more time, the rolls of tissue grasped in the tissue receptacles (53, 54) act as form-fitting protection of the vessel edges in the tool (12).
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: November 20, 2018
    Assignee: Erbe Elektromedizin GmbH
    Inventors: Rolf Weiler, Volker Mayer, Heiko Schall, Achim Brodbeck, Tobias Amann
  • Patent number: 10085791
    Abstract: A self-limiting electrosurgical return electrode for use with electrosurgical procedures is disclosed. The return electrode includes a conductive element and pads disposed on opposing sides of the conductive element. The conductive element, optionally in combination with the pads, is configured to limit the density of electrical current that passes from a patient to the return electrode. The conductive element and the pads can cooperate to define two separate working surfaces on opposing sides of the return electrode. The return electrode can also be safely used with patients of substantially any size and without requiring adjustments to the power settings of an electrosurgical generator.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: October 2, 2018
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa K. Fischer
  • Patent number: 10058378
    Abstract: A treatment tool includes a first gripping member, a second gripping member configured to be opened and closed with respect to the first gripping member, a heat radiating member and a first heat conductive member. A predetermined position between a closed state and an opened state is defined as a switching position in a process of changing the closed state to the opened state, a first region is defined as a region from the closed state to the switching position, and a second region is defined as a region from the switching position to the opened state. The first heat conductive member brings the first gripping member and the heat radiating member into a non-thermally contacted state in the first region, and brings the first gripping member and the heat radiating member into a thermally contacted state in the second region.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 28, 2018
    Inventor: Takashi Nagata
  • Patent number: 10045812
    Abstract: A method of surgery includes grasping tissue between tissue-treating plates of first and second jaw members by moving the first and second jaw members from a spaced-apart position to a first approximated position, energizing the tissue-treating plates to conduct energy through the grasped tissue to treat tissue, and separating grasped and treated tissue by moving the first and second jaw members from the first approximated position to a second approximated position. Moving the first and second jaw members from the first approximated position to the second approximated position laterally shifts the jaw members relative to one another from an aligned orientation, wherein the tissue-treating plates are aligned with one another, to an offset orientation, wherein the tissue-treating plates are offset relative to one another.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 14, 2018
    Assignee: COVIDIEN LP
    Inventor: John R. Twomey
  • Patent number: 10045811
    Abstract: A surgical instrument includes an active electrode coupled to a source of electrosurgical energy. The active electrode includes a tissue-contacting surface on an exterior surface of the instrument such that the tissue-contacting surface of the active electrode may intimately engage tissue. A replacement electrode includes a tissue-contacting surface, and is located in an interior cavity of the instrument. A seal is formed between the active electrode and the interior cavity of the instrument such that the tissue-contacting-surface of the replacement electrode is isolated from contamination exposed to the exterior of the instrument. The active electrode is removable from the instrument to expose the tissue-contacting surface of the replacement electrode, and the replacement electrode is connectable to the source of electrosurgical energy when the active electrode is removed.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: August 14, 2018
    Assignee: COVIDIEN LP
    Inventors: Robert M. Sharp, William H. Nau, Jr., Glenn A. Horner, Duane E. Kerr, Kristel L. Ambrosius
  • Patent number: 10045879
    Abstract: A portable heating/cooling device for clinical hypo/hyperthermia with cuffs especially designed for arterial cooling/heating for raising or lowering the body temperature of a patient is operable by battery power or a wide range of available external power, and is usable in the field or in medical transport where such external power sources are not available. The small size, weight, and robust nature of the device allows it to be transported with the patient without the need for additional conveying devices.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: August 14, 2018
    Assignee: Geratherm Medical AG
    Inventors: Thomas Robst, Gert Frank, Ronald G. LeTourneau
  • Patent number: 10010445
    Abstract: The current invention discloses a treatment device having a heat source, a power source and a heat applicator. The power source includes at least one nanotech battery, ensuring superior properties such as prolonged electricity production and prompt recharging. The heat applicator includes a heat conductive layer made from nanofibers, providing highly efficient heat distribution to the targeted regions. The power source provides energy to the heat source, which generates heat so that the applicator may distribute to an injury site or wound bed of a user. The current device may also be used for cooling, instead of heating applications. In addition to the medical utilizations, the current device may also play a central role in other apparatus that require thermal control capabilities.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: July 3, 2018
    Inventors: Jonathan Isserow, Laura Isserow
  • Patent number: 9993288
    Abstract: A forceps includes first and second shaft members, each having a jaw member disposed at a distal end thereof. The first and second shaft members are pivotably coupled to one another toward the distal ends thereof and are moveable relative to one another between an open position and a closed position for moving the jaw members between a spaced-apart position and an approximated position. A knife assembly including a handle and a knife extending from the handle is also provided. The knife assembly is selectively translatable between a retracted position and an extended position, wherein the knife extends between the jaw members. The handle is disposed between the first and second shaft members and is configured to block further closure of the first and second shaft members beyond the closed position, thereby defining a minimum gap distance between the jaw members.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: June 12, 2018
    Assignee: COVIDIEN LP
    Inventor: Daniel A. Joseph
  • Patent number: 9974608
    Abstract: A method, including injecting a current between an electrode of a catheter and tissue in proximity to the catheter, the catheter having a force sensor configured to measure a force between the catheter and the tissue. The method further includes measuring a succession of phase shifts of the current relative to a fixed reference and verifying that a cardinality of the measured phase shifts falling below a predetermined threshold increases over a predetermined time period. A zero-force point for the force sensor is calibrated according to the force measured by the force sensor during the predetermined time period.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: May 22, 2018
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Vadim Gliner, Assaf Govari
  • Patent number: 9955881
    Abstract: An electrode system include a flowable and cohesive surface contact element comprising a hydrophilic polymer swollen with an electrolyte fluid, the contact element having a Q? ratio of at least 5 as defined by the equation Q ? = W W W G wherein WG is the dry weight of the hydrophilic polymer and WW is weight of water in the sample after absorption of the electrolyte fluid comprising water and an electrolyte salt. The surface contact element can consist essentially of the hydrophilic polymer swollen by the electrolyte fluid. Another electrode system includes a contact element including a crosslinked hydrophilic polymer matrix. The contact element has a Q? ratio of at least 5 as defined by the equation Q ? = W W W G . The contact elements can also have a Q? ratio of at least 6, at least 7, at least 10 or even at least 11.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: May 1, 2018
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Xinyan Cui, Nicolas Alexander Alba, Mingui Sun
  • Patent number: 9918872
    Abstract: A system for treating uterine atony, and promoting contraction of a uterus includes a heat transference article having a chilled surface in contact with an inner or outer surface of the uterus for a length of time sufficient to promote contraction while avoiding tissue damage. A heat transference medium such as a chilled saline solution, or cold gel is introduced to the article by injection, pre-filling, immersion or other suitable means, and is circulating or non-circulating.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: March 20, 2018
    Inventors: James Daniel Crowson, Jack Alfred Stecher
  • Patent number: 9861810
    Abstract: Thermal drawing processes can be used to make multifunctional, high-resolution neural probes for neural recording and stimulation. An exemplary neural probe may include one or more conductive fibers or microelectrodes coated with two or more layers of insulating material, at least one of which is partially etched to expose a tip at the neural probe's distal end. The conductive fibers conduct electrical signals (e.g., neural spikes or electrical stimulation) between the tip and the neural probe's proximal end. Optional optical and fluidic waveguides may guide light and fluid, respectively, between the tip and the proximal end. A neural probe may be flexible enough for long-term (chronic) implantation in neural tissue (e.g., the brain) without excessive tissue damage, even during movement of the brain in the skull. The probe may be made from biocompatible materials, such as insulating and conductive polymers, that have negligible (insignificant) interaction with the surrounding tissue.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: January 9, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Polina Olegovna Anikeeva, Xiaoting Jia, Chi Lu, Andres Canales, Ulrich Paul Froriep, Christina Myra Tringides, Yoel Fink
  • Patent number: 9855093
    Abstract: An instrument for cutting body tissue has an instrument shaft, A blade, is adjacent to a distal end of the instrument shaft and can be folded out with respect to a longitudinal axis of the shaft and can be rotated about the longitudinal axis. An operating part is at a proximal end of the instrument shaft. A proximal end of the blade directed toward the operating part can be pivoted laterally out away from the longitudinal axis about an end of the blade that faces away from the proximal end and that is distally articulated at an articulation point. A tissue stop is arranged at the distal end of the instrument shaft. The tissue stop can be brought into an active position in which a stop surface facing the blade in the proximal direction has a specified fixed distance from the articulation point.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: January 2, 2018
    Inventors: Thomas Graf, Alexander Doppelstein, Carolin Spuentrup, Karl-Guenter Noe
  • Patent number: 9844697
    Abstract: In order to determine the state of a muscle between a normal non-tired state, a tired state and a passive involuntary tension state, a signal from the muscle is recorded at rest by using an electrode arrangement, where an earth body may prevent the electrodes from picking up signals beyond the extent of the earth body. The frequency content of the signal is determined by spectral analysis, e.g. by computing a moment of the spectrum. A normal frequency content indicates a non-tired muscle state, whereas a low and a high frequency content indicate a tired and a passive involuntary tension muscle state. A mapping is used to improve accuracy of state determination, e.g. with a reference database.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: December 19, 2017
    Assignee: FIBRUX OY
    Inventors: Mika Herrala, Pasi Tavi, Jani Mantyjarvi, Mikko Vahasoyrinki
  • Patent number: 9737361
    Abstract: A catheter apparatus defining a first lumen with a first internal diameter, the catheter apparatus further comprising a shaping structure having a distal end and a proximal end and a length therebetween, the shaping structure being moveable between a delivery state having a first helical shape, and a deployed state having a second helical shape. A deployment member having a second lumen with a second internal diameter, a first portion of the deployment member being positioned within the first lumen and having a third outside diameter sized to enable the deployment member to slide within the first lumen, the deployment member being operably coupled to the distal end of the shaping structure and being configured such that distal axial movement of the deployment member places the shaping structure in the delivery state, and proximal axial movement of the deployment member places the shaping structure in the deployed state.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 22, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Jesus Magana, John Stankus, Benny Serna, Michael Ngo
  • Patent number: 9713492
    Abstract: A surgical instrument includes an end effector assembly and a switch assembly. The end effector assembly includes a monopolar assembly and a bipolar assembly. The switch assembly includes first and second bipolar inputs, first and second bipolar outputs, a monopolar input, and a monopolar output. The switch assembly is transitionable between a first condition, wherein the first and second bipolar inputs are coupled to the first and second bipolar outputs, respectively, for supplying energy to the bipolar assembly, and a second condition, wherein the monopolar input and the monopolar output are coupled to one another for supplying energy to the monopolar assembly.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: July 25, 2017
    Assignee: COVIDIEN LP
    Inventors: David M. Garrison, Dylan R. Kingsley, Tony Moua
  • Patent number: 9675407
    Abstract: A radio frequency (RF) treatment apparatus includes a main machine and a treatment handpiece. The treatment handpiece may comprise an RF output device, comprising a controller, an RF electrode module, an RF electrode driving circuit, and an RF generation module. The treatment handpiece may also employ a modified arrangement of the plurality of RF electrodes and/or an adjusted series-connection pattern. The treatment handpiece may also be provided with a microneedle member, which includes a plurality of microneedles, a printed circuit board (PCB), and a substrate plate, wherein the plurality of microneedles comprise a plurality of long microneedles and a plurality of short microneedles.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: June 13, 2017
    Inventor: Xiaobing Lei