Patents Examined by Lee Cohen
  • Patent number: 8382748
    Abstract: A method and associated electrosurgical apparatus for cutting and/or coagulating living tissue of a mammal. The glow blade cuts and/or coagulates the tissue with a glow blade accompanied by sufficient electrical current across the tissue to enable the cutting and/or coagulating to be performed while the glow blade is heated to a sufficient temperature. The electrosurgical apparatus includes the glow blade, a radio frequency (RF) generator such that a first output of the RF generator is electrically connected to the glow blade, and an energy source coupled to the glow blade. The RF generator is configured to supply sufficient RF power and associated electrical current across the living tissue for performing the cutting and/or coagulating by the glow blade while sufficient energy is being supplied by the energy source to heat the glow blade to a sufficient temperature for performing the cutting and/or coagulating by the glow blade.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: February 26, 2013
    Inventor: Donald J. Geisel
  • Patent number: 8380276
    Abstract: A mapping and ablation catheter has contact force sensing capabilities at a distal end. In one embodiment, the catheter includes a catheter body, a deflectable section, and a tip distal tip section which has a tip electrode with a thin-film pressure sensor that is adapted to detect a force vector applied to the tip electrode. The thin-film pressure sensor includes two opposing flexible and thin support members containing a pressure-sensitive material therebetween whose resistivity changes as a result of pressure and is detected by trace electrode intersections supported on interfacing surfaces of the flexible and thin support members. Used with a stop member having a conforming shape against which the thin-film pressure sensor abuts when a force vector is applied to the tip electrode, the pressure sensor can have a 2-D, radially-symmetrical shape, e.g., a disc or ring configuration, or a 3-D, radially-symmetrical shape, e.g., a conical configuration.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: February 19, 2013
    Assignee: Biosense Webster, Inc.
    Inventor: Jeffrey W. Schultz
  • Patent number: 8374670
    Abstract: A mapping and ablation catheter with contact force sensing capabilities at a distal end, includes a catheter body, a deflectable section, and a tip distal section which has a tip electrode and a contact force sensor for sensing a 3D contact force vector applied to the tip electrode. In contact with the tip electrode, the contact force sensor has a body and has at least one sensor with an electrical characteristic that is responsive to deformation of the body resulting from force vector. The sensor is adapted to receive an electrical current and to output an electrical signal indicative of a change in the electrical characteristic. In one embodiment, the sensor is a strain gage responsive to tension and compression of at least a portion of the body of the force sensor and the electrical characteristic of the strain gage that is monitored is electrical resistivity.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: February 12, 2013
    Assignee: Biosense Webster, Inc.
    Inventor: Thomas V. Selkee
  • Patent number: 8249686
    Abstract: An adherent device is configured to adhere to the skin of the patient with an adherent patch, for example breathable tape, coupled to at least four electrodes. The device comprises impedance circuitry coupled to the at least four electrodes and configured to measure respiration of the patient to detect sleep apnea and/or hypopnea. The impedance circuitry may be used to measure hydration of the patient. An accelerometer can be mechanically coupled to the adherent patch such that the accelerometer can be coupled to and move with the skin of the patient. Electrocardiogram circuitry to generate an electrocardiogram signal may be coupled to at least two of the at least four electrodes to detect the sleep apnea and/or hypopnea.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: August 21, 2012
    Assignee: Corventis, Inc.
    Inventors: Imad Libbus, Yatheendhar D. Manicka, Mark J. Bly
  • Patent number: 8238996
    Abstract: A sensor array apparatus for monitoring medical signals includes a flexible substrate adapted for positioning relative to the torso of a patient. The flexible substrate includes a central segment defining a central axis and is adapted to generally conform to an area extending along the sternum of a patient. The flexible substrate further includes an upper segment extending traversal across the central segment and adapted to generally conform to the chest area of a patient and a lower segment extending traversal across the central segment and adapted to generally conform to the abdominal area of the patient. The apparatus further includes a medical electrode disposed on at least one of the segments and a connector in electrical communication with the medical electrode and adapted to connect to an electronic monitoring system.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: August 7, 2012
    Assignee: Tyco Healthcare Group LP
    Inventors: Lee Burnes, Scott Coggins, Dawn Moore, Mark Tauer
  • Patent number: 8238995
    Abstract: A self-adhering sensor for non-invasively attaching to a portion of a skin is provided. The sensor comprises a biocompatible substrate, and an array of solid nanoelectrodes coupled to the biocompatible substrate and configured to self-adhere to the skin. Also provided is a sensor for attaching to a portion of a skin, where the sensor comprises an array of solid electrodes configured to self-adhere to the skin, where each of the solid structures comprises a stem and one or more projections extending out from the stem, where both the stem and the projections are solid. The stem comprises a mechanical stopper to control the extent of penetration of the solid electrodes into the skin. The sensor further comprises an electrolyte coating disposed on one or more of the solid structures.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 7, 2012
    Assignee: General Electric Company
    Inventors: Shankar Chandrasekaran, Nikhil Subhashchandra Tambe, Donald Eugene Brodnick
  • Patent number: 8238998
    Abstract: A disposable tab electrode has core elements that include an adhesive conductive laminate layer and a logo sticker layer with a penetrating hole for contacting a sensor electrode. A protecting film is put around both ends of the core elements. As a result, the disposable tab electrode can be made inexpensively, stored hygienically for a long time and used easily. A lead wire for connecting to the tab electrode has a projection on one end of a sensor electrode that is adhered onto the conductive laminate layer of the disposable tab electrode. The projection is fixed to the lead wire body by a fixing member. As a result, expensive Ag—AgCl electrode sensors can be used repeatedly. The lead wire can have a nipper self-contained or integrated with the lead wire body to prevent the lead wire from separating from the disposable tab electrode during use.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: August 7, 2012
    Assignee: Bio Protech Inc.
    Inventor: Ik Ro Park
  • Patent number: 8231622
    Abstract: The invention relates to a bipolar coagulation instrument having a hollow shaft configured as a suction and/or flushing tube and having two electrodes that are electrically insulated with respect to one another and extend beyond the distal end of the shaft. To provide a bipolar coagulation instrument that is both of simple structure and ensures an effective suction/flushing capacity, it is proposed with the invention that the hollow shaft should consist of two electrically conductive tubes coaxially mounted on one another that are electrically insulated with respect to one another and from the outside, so that the tubes constitute the electrodes.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: July 31, 2012
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Uwe Bacher, Rainer Hermle
  • Patent number: 8229538
    Abstract: An electrophysiology catheter introduced through the groin and inferior vena cava into the right side of the heart comprises an elongate flexible shaft having a steerable distal section and a prolapsing section located proximally of the distal section. The distal section is inserted into the coronary sinus and a back-steering force is applied to the catheter to anchor the distal section therein, after which the catheter is further advanced to prolapse the prolapsing section against the high right atrium. Electrical pathways in both the coronary sinus and the high right atrium are mapped using respective electrode pairs carried on the distal and prolapsing sections of the catheter.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: July 24, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Josef V. Koblish
  • Patent number: 8229539
    Abstract: A brain probe includes: a core probe made from a metal; and n electrode plates attached so as to cover an entire side surface circumference of the core probe and forming n side planes providing an n-angular cross section (n is an integer equal to or greater than 3). Each of the electrode plates is manufactured by a LSI manufacturing process, and provided with at least one electrode and a lead-out wiring extending in a longitudinal direction of a side plane from each of the at least one electrode.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 24, 2012
    Assignees: Tohoku-Microtec Co., Ltd., Tohoku University
    Inventors: Makoto Motoyoshi, Mitsumasa Koyanagi, Hajime Mushiake, Tetsu Tanaka, Norihiro Katayama
  • Patent number: 8224417
    Abstract: The implantable device system of the preferred embodiments includes a guide tube, a first electrical subsystem, and a second electrical subsystem. The first electrical subsystem is connected to the second electrical subsystem. The guide tube functions to facilitate the insertion of at least one first electrical subsystem and is adapted to allow the first electrical subsystem(s) to move freely with the tissue, allowing the placement of the first electrical subsystem without disconnecting the second electrical subsystem. The implantable device system may be implanted into the brain, spinal cord, peripheral nerve, muscle, or any other suitable anatomical location. The guide tube of the system, however, may be alternatively used in any suitable environment and for any suitable reason.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: July 17, 2012
    Assignee: NeuroNexus Technologies, Inc.
    Inventor: Rio J. Vetter
  • Patent number: 8224416
    Abstract: Embodiments of the present invention provide a catheter that comprises an elongated catheter body (16) and an electrode assembly (10) at the distal end of the catheter body. The electrode assembly comprises a plurality of spines (11), each of the spines having a proximal end connected to the distal end of the catheter and a distal end, the distal ends of the spines being connected at a spine tip junction (13). Each spine includes an elbow (20) having at least one discontinuity in stiffness at an intermediate position between the distal end and the proximal end thereof. The spines include a plurality of electrodes (12). The electrode assembly is collapsible to a collapsed arrangement to fit within a lumen of the elongated catheter body and expandable to an expanded arrangement with the elbows of the spines bending outwardly relative to the proximal and distal ends of the spines.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 17, 2012
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Alan de la Rama, Cary K. Hata
  • Patent number: 8216231
    Abstract: Large tissue regions are treated using pairs of electrode arrays. The electrode arrays may be concave and disposed in tissue so that their concave portions are opposed to each other. Axial conductors may be provided extending from the arrays and toward each other in order to increase the heating of tissues lying along the axis between the deployed electrode arrays. By properly spacing the electrode arrays apart and selecting the diameters of the arrays, desired volumes of tissue may be treated, typically with a bipolar, radiofrequency current.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: July 10, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Robert S. Behl, Morton Grosser, Alexander L. Huang
  • Patent number: 8216228
    Abstract: Apparatus, methods, and computer-readable media herein described, depicted and claimed are applied for curative ablation to achieve the inactivation or destruction of fibrillar myocardium of so-called AF nests or other arrhythmogenic foci within the myocardial substrate. In addition, fibrillar myocardium may be identified and mapped by spectral analysis and phase study of the tissue during sinus rhythm. The procedure may be performed by transseptal puncture using only one catheter for ablation and mapping. The apparatus, methods, and computer-readable media may be used to localize the application targets even during an arrhythmia.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: July 10, 2012
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Jose Carlos Pachon Mateos, Enrique Indalecio Pachon Mateo
  • Patent number: 8214009
    Abstract: A biosignal measurement device includes an electrode and a signal processing member. The electrode includes an insulation sheet having a hole, a device contact portion provided on the top surface of the insulation sheet and a body contact portion provided on the bottom surface of the insulation sheet, the device contact portion and the body contact portion electrically connected to each other via the hole. The signal processing member includes an externally exposed terminal to make surface contact with the device contact portion, an analog signal processing unit, an A/D signal converter and a digital signal processing unit. Also, the device contact portion and the body contact portion are formed of a material which is both conductive and adhesive. Accordingly, the signal processing member may be directly attached. Noise may be reduced. Also, a biosignal may be accurately measured.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kun Soo Shin, Jin Sang Hwang, Jong Pal Kim, Hyung Sok Yeo, Sang Ryong Kim
  • Patent number: 8208985
    Abstract: A sensor measuring skin impedance includes a reference electrode, a current carrying electrode, and a measuring electrode for measuring impedance for current flowing between the reference electrode and the current carrying electrode. The measuring electrode is recessed with respect to the reference electrode and the current carrying electrode, allowing the measuring electrode to make contact with a user's skin after the reference electrode and current carrying electrode make contact, resulting in greater measurement accuracy.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: June 26, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong Sig Kim, Woo Young Jang, Jae Chan Park, Jeong Je Park
  • Patent number: 8204571
    Abstract: A mapping catheter comprises a catheter body and a mapping assembly. The catheter body has an outer wall, proximal and distal ends, and at least one lumen extending therethrough. The mapping assembly comprises a generally straight proximal region attached to the catheter body, a generally circular main region distal the proximal region having an outer circumference, and a generally straight distal region distal the main region. The mapping assembly also comprises a support member having shape-memory, a non-conductive covering over the support member, and a plurality of electrodes on the non-conductive covering along the generally circular main region.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: June 19, 2012
    Assignee: Biosense Webster, Inc.
    Inventors: Kristine B. Fuimaono, Michel Haissaguerra
  • Patent number: 8204570
    Abstract: Described are an electrode and electrode catheter using thin metallic threads or wires, for example, microwires having diameters as low as 10?6 to 10?4 meters or less. The embodiments allow for the efficient mounting of at least one electrode on a catheter, resulting in the creation of a flexible ring-microelectrode that is suitable for, amongst other things, the detection of myoelectrical activity in a patient's muscle, such as the diaphragm or other inspiratory-related muscle.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: June 19, 2012
    Assignee: Maquet Critical Care AB
    Inventors: Christer Sinderby, Norm Comtois, Göran Rydgren, Tord Lindner
  • Patent number: 8197472
    Abstract: A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: June 12, 2012
    Assignee: Maquet Cardiovascular, LLC
    Inventors: Liming Lau, Arnold M. Escano, Jerry Jarrard, Samuel Ho, Ryan C. Abbott, Arthur M. Lin, Jesse McQuiston, Kelly L. Dang
  • Patent number: 8195266
    Abstract: Microelectrode assemblies and related methods are disclosed for bio-stimulating and/or bio-sensing a target tissue. The assemblies can include a two-side substrate, an array of microelectrodes, each of the microelectrodes including a nano-wire embedded within the substrate and extending from a proximal end to a distal end and through the substrate, each nano-wire having a diameter preferably less than 1 ?m. The substrate can include portions made of nano-porous material(s) through which the microelectrodes pass. The substrate with the embedded nano-wires can effectively be fluid impermeable. The proximal ends of the nano-wires can be adapted to be connected to an electronic device and the distal ends are adapted to be disposed in a biological environment for bio-stimulating a target tissue and/or bio-sensing activities of the target tissue. Suitable alloys such as platinum, platinum-iridium, and/or other noble-metal-alloyed compositions can be used for the nano-wires.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: June 5, 2012
    Assignee: Doheny Eye Institute
    Inventors: John J. Whalen, III, James D. Weiland, Mark S. Humayun