Systems Patents (Class 606/34)
  • Patent number: 10729494
    Abstract: A surgical tool is disclosed. The surgical tool has a tool mounting portion having a tool mounting housing, a tool mounting plate, and a coupler to couple a shaft assembly having an articulation section to the tool mounting portion. An articulation mechanism is located within the tool mounting portion and is configured to receive a proximal end of the shaft assembly to articulate the articulation section of the shaft assembly. The articulation mechanism has a cam mechanism operative to articulate the articulation section of the shaft assembly. An interface mechanically and electrically couples the tool mounting portion to a manipulator.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 4, 2020
    Assignee: Ethicon LLC
    Inventors: Shailendra K. Parihar, Matthew C. Miller, Barry C. Worrell
  • Patent number: 10729486
    Abstract: Disclosed are devices, systems, and methods for operating an electrosurgical generator, including a radio-frequency (RF) output stage configured to output an electrosurgical waveform, a wireless transceiver configured to communicate with an implantable device in a patient, and a controller coupled to the RF output stage and the wireless transceiver, the controller configured to control the RF output stage to generate an electrosurgical waveform based on the implantable device.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: August 4, 2020
    Assignee: Covidien LP
    Inventors: James E. Dunning, Sara E. Anderson, Steven P. Buysse
  • Patent number: 10722288
    Abstract: Methods and system are provided for thermally-induced renal neuromodulation. Thermally-induced renal neuromodulation may be achieved via direct and/or via indirect application of thermal energy to heat or cool neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers. In some embodiments, parameters of the neural fibers, of non-target tissue, or of the thermal energy delivery element, may be monitored via one or more sensors for controlling the thermally-induced neuromodulation. In some embodiments, protective elements may be provided to reduce a degree of thermal damage induced in the non-target tissues. In some embodiments, thermally-induced renal neuromodulation is achieved via delivery of a pulsed thermal therapy.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: July 28, 2020
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Andrew Wu, Benjamin J. Clark, Erik Thai, Nicolas Zadno, Denise Zarins
  • Patent number: 10722286
    Abstract: High-voltage pulses ablation systems and methods are used to ablate tissue and form lesions. A variety of different electrophysiology devices, such as catheters, surgical probes, and clamps, may be used to position one or more electrodes at a target location. Electrodes can be connected to power supply lines and, in some instances, the power to the electrodes can be controlled on an electrode-by-electrode basis. High-voltage pulse sequences provide a total amount of heating that is typically less than that which is observed with thermally-based radiofrequency energy ablation protocols.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: July 28, 2020
    Assignee: AtriCure, Inc.
    Inventor: David K. Swanson
  • Patent number: 10716621
    Abstract: Various aspects of the present disclosure are directed toward apparatuses, systems, and methods for applying ablation therapy to a tissue region. The apparatuses, systems, and methods may include a balloon structure and one or more electrodes arranged on or within the balloon structure and configured to deliver energy to the tissue region.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: July 21, 2020
    Assignees: Boston Scientific Scimed, Inc., Mayo Foundation for Medical Education and Research
    Inventors: James P. Rohl, Douglas Pennington, David R. Wulfman, Joel T. Eggert, Douglas D. Pagoria, Samuel J. Asirvatham, Adeniyi O. Aremu, James A. Klos, Todd College, Suraj Kapa, Sarah M. Gruba, David R. Holmes
  • Patent number: 10695118
    Abstract: An operation method of an electric power source device for operating a high-frequency treatment instrument configured to perform a high-frequency treatment on a biological tissue includes causing a high-frequency electric power source circuit to output electric power; acquiring an initial impedance value in a first period from a start of the output; determining an increase rate of an output voltage relative to time; increasing the output voltage of the high-frequency electric power source circuit in accordance with the increase rate in a second period; acquiring the value relating to impedance of the biological tissue in the second period; and terminating the second period after the value relating to the impedance reaches a minimum value.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: June 30, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Danilo Legaspi, Tsuyoshi Hayashida
  • Patent number: 10687885
    Abstract: A method of controlling an electrosurgical HF apparatus, as well as an HF apparatus, includes an electrosurgical instrument and an HF generator for generating an HF current. The HF generator is in a locked state in which its activation is not possible. An application to be carried out is to be selected prior to a user-side activation of the HF generator, whereby the HF generator is unlocked.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 23, 2020
    Assignee: AESCULAP AG
    Inventors: Thomas Maser, Heiko Reichle, Anton Keller, Stefan Eick
  • Patent number: 10682520
    Abstract: Devices, systems, and techniques for controlling charging power based on a cumulative thermal dose to a patient are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. An external charging device may calculate an estimated cumulative thermal dose delivered to the patient during charging over a predetermined period of time. Based on the estimated cumulative thermal dose, the external charging device may select a power level for subsequent charging of the rechargeable power source. In one example, the charging device may select a high power level when the cumulative thermal dose has not exceeded a thermal dose threshold and select a low power level when the cumulative thermal dose has exceeded the thermal dose threshold.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: June 16, 2020
    Assignee: Medtronic, Inc.
    Inventors: Kevin J. Kelly, David P. Olson, Reid K. Bornhoft, Venkat R. Gaddam
  • Patent number: 10682176
    Abstract: A method for controlling an ablation power applied to a catheter includes: receiving, by a controller, a detected contact force from a sensor assembly of the catheter, the sensor assembly being configured to detect a contact force applied to the electrode; controlling, by the controller, a power supplied to an electrode of the catheter to have a deactivated power level when the detected contact force is less than a first threshold contact force; controlling, by the controller, the power supplied to the electrode of the catheter to have a first power level when the detected contact force is greater than the first threshold contact force; and controlling, by the controller, the power supplied to the electrode of the catheter to have a deactivated power level when the detected contact force is greater than a cutoff contact force, the cutoff contact force being greater than the first threshold contact force.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: June 16, 2020
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Itzhak Fang, Garth Constantine
  • Patent number: 10675082
    Abstract: A surgical system includes an electrosurgical tool configured to be releasably coupled to a surgical robotic system having a control system. The tool has a shaft having an end effector with treatment electrodes configured to apply electrosurgical power to a tissue, and aspiration and irrigation tubes having ports in the vicinity of the electrodes. The control system can control a flow rate of an irrigation fluid based on deviation of power delivered by the electrodes to the tissue from a power set point, or based on an aspiration rate that is controlled based on tissue impedance. The tool can have first and second ports and a conduit configured to selectively provide or aspirate fluids through at least one of the ports. At least one of a flow rate and an aspiration rate are controlled by the control system based on a rotational angle of the shaft relative to a ground.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: June 9, 2020
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, Heather Doak
  • Patent number: 10675100
    Abstract: Systems and methods are provided for improving medical instruments and devices. One system includes a surgical instrument associated with an instrument identifier, and an electrosurgical generator operably coupled to the surgical instrument. The electrosurgical generator is associated with a generator identifier and is configured to receive and store data associated with an operating mode of the surgical instrument, receive data associated with the instrument identifier from the surgical instrument, generate a unique identifier based on a time and date at which the surgical instrument is operably coupled with the electrosurgical generator for the first time, the generator identifier of the electrosurgical generator, and the instrument identifier, and associate the unique identifier with the stored data associated with the operating mode of the surgical instrument.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: June 9, 2020
    Assignee: COVIDIEN LP
    Inventor: Scott E.M. Frushour
  • Patent number: 10675462
    Abstract: In one aspect, the present disclosure is directed to a method for identifying a site with a patient for treatment. The method may include engaging a plurality electrodes with an interior wall of the patient at a plurality of locations. The method may also generating a virtual map of a plurality of electrodes, wherein each of the plurality of electrodes is displayed with a first indicia. The method may also include displaying each of the plurality of electrodes engaged with the interior wall with a second indicia, measuring electrical activity, identifying at least one site for treatment based on the measured resulting electrical activity, and displaying each of the plurality of electrodes identified for treatment with a third indicia.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: June 9, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Ding Sheng He, Sandra Nagale, Allan Charles Shuros, Charles Gibson, Lynne Swanson, Dennis Werner, Timothy Paul Harrah, Mark Boden, Michael Charles Peterson, Steven Diamond, Amedeo Chiavetta
  • Patent number: 10646246
    Abstract: A surgical system includes a surgical instrument and a cooling module. The cooling module includes a fluid reservoir retaining a conductive cooling fluid, a pump configured to pump the conductive cooling fluid along a flowpath, first and second electrodes disposed at first and second positions along the flowpath and configured to sense an electrical property of the conductive cooling fluid at the first and second positions, and a controller configured to determine an impedance of the conductive cooling fluid between the first and second positions based upon the sensed electrical properties of the first and second electrodes. A method for cooling a surgical instrument includes detecting an electrical property of a conductive cooling fluid at first and second positions along a flowpath and determining an impedance of the conductive cooling fluid between the first and second positions based upon the detected electrical properties at the first and second positions.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: May 12, 2020
    Assignee: COVIDIEN LP
    Inventors: James E. Thompson, Robert B. Smith, Daniel A. Friedrichs
  • Patent number: 10624692
    Abstract: A power supply apparatus is for a treatment instrument including a probe having electrical conductivity which vibrates, a grasping member that is opened and closed with respect to the probe and an electrode provided in the grasping member. The power supply apparatus supplies high-frequency power between the probe and the electrode. The power supply apparatus includes a resistance acquisition circuit which repeatedly acquires a resistance value of electrical resistance between the probe and the electrode, a condition determination circuit which acquires the number of times the resistance value satisfies a predetermined condition while the probe is vibrating and power is supplied between the probe and the electrode, and a determination circuit which determines whether or not the probe and the electrode are electrically short-circuited based on the number of times.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 21, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Tsunetaka Akagane, Ko Kawashima, Tsuyoshi Hayashida
  • Patent number: 10617463
    Abstract: The electrosurgical systems and corresponding methods of the present disclosure involve an electrosurgical generator, sensing circuitry, and a controller. The electrosurgical generator includes a radio frequency (RF) output stage that supplies power to tissue. The sensing circuitry measures impedance of tissue. The controller controls the power supplied from the RF output stage to track a nonlinear power curve until the power supplied from the RF output stage has reached a predetermined peak power of the nonlinear power curve. The controller further determines whether a tissue reaction has occurred based on impedance measured by the sensing circuitry and controls the power supplied from the RF output stage during a cooling phase if the controller determines that a tissue reaction has occurred. The controller may further control the power supplied from the RF output stage to track a linear power curve.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: April 14, 2020
    Assignee: COVIDIEN LP
    Inventors: Jennifer R. McHenry, Alexander M. Waskiewicz, Anthony D. Ricke, Rebecca J. Coulson, Jessica E. C. Olson
  • Patent number: 10610286
    Abstract: Provided is a method for managing radio frequency (RF) and ultrasonic signals output by a generator that includes a surgical instrument comprising an RF energy output and an ultrasonic energy output and a circuit configured to receive a combined RF and ultrasonic signal from the generator. The method includes receiving a combined radio frequency (RF) and ultrasonic signal from a generator; generating a RF filtered signal by filtering RF frequency content from the combined signal; filtering ultrasonic frequency content from the combined signal; generating an ultrasonic filtered signal; providing the RF filtered signal to the RF energy output; and providing the ultrasonic filtered signal to the ultrasonic energy output.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: April 7, 2020
    Assignee: Ethicon LLC
    Inventors: Eitan T. Wiener, David C. Yates, Ryan M. Asher, John A. Hibner, John E. Hein
  • Patent number: 10610296
    Abstract: A device, system and method for measuring the impedance during a medical procedure being performed on a patient is disclosed. The device, system and method include an electrode capable of being used in the medical procedure, a plurality of patches operationally located on the surface of a body of the patient, and a sensor for measuring a signal between the electrode and at least one of the plurality of patches, the signal being processed using a processor using a first filter and a second filter, and combining the result of the first filter and the second filter using a weighting of the filters to provide a measurement of the impedance, wherein the impedance indicates the end of the medical procedure.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 7, 2020
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Avram Dan Montag, Meir Bar-Tal
  • Patent number: 10610292
    Abstract: The present disclosure relates to devices, systems and methods providing evaluation and feedback to an operator of a device providing neuromodulation treatment, such as modulation of renal nerves of a human patient. In one embodiment, for example, a system monitors parameters or values generated before treatment. Feedback provided to an operator is based on the monitored values and relates to an assessment of various electrical properties associated with an electrode carried by a catheter. The electrode measures an electrical property of biological material making contact with the electrode while deploying the electrode, the electrical property being dependent on a ratio of a wall-interface area to a fluid-interface area.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: April 7, 2020
    Assignee: Medtronic Ardian Luxembourg S.a.r.l.
    Inventors: Vincent Ku, Sowmya Ballakur, Jignesh Shah
  • Patent number: 10610287
    Abstract: An electrosurgical generator includes: a power supply configured to output a DC waveform; a power converter coupled to the power supply and configured to generate a radio frequency waveform based on the DC waveform; an active terminal coupled to the power converter and configured to couple to a first electrosurgical instrument and a second electrosurgical instrument; at least one sensor coupled to the power converter and configured to sense at least one property of the radio frequency waveform; and a controller coupled to the power converter. The controller is configured to: determine a first impedance associated with a first electrosurgical instrument and a second impedance associated with a second electrosurgical instrument based on the at least one property of the radio frequency waveform; and adjust at least one parameter of the radio frequency waveform based on the first impedance and the second impedance.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: April 7, 2020
    Assignee: Covidien LP
    Inventor: James E. Dunning
  • Patent number: 10603100
    Abstract: A controller for an electrosurgical device and related methods and devices are disclosed. The controller has a processing component to: (a) derive a power factor of power applied to the electrosurgical device; and (b) responsive to the deriving a power factor, assign a circuit status to a circuit comprising the electrosurgical device. IF (PF?0) and ((Vrms/Irms)?T), THEN the circuit status is “open”. IF (PF?0) and ((Vrms/Irms)<T), THEN the circuit status is “short”. PF is the power factor. Vrms is the root mean square of a voltage associated with the power applied to the at electrosurgical device. Irms is the root mean square of a current associated with the power applied to the electrosurgical device. T is a threshold value.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: March 31, 2020
    Assignee: Eximis Surgical Inc.
    Inventors: James A. Gilbert, Steven C. Rupp, William N. Gregg, Kristin D. Johnson, Dirk Johnson
  • Patent number: 10605833
    Abstract: The invention, which relates to an arrangement for current measurement at a current lead-through, addresses the problem of specifying an arrangement for current measurement by means of which a reliable, galvanically isolated measurement of motor phase currents can be carried out, wherein the space requirement of the arrangement is reduced. This problem is resolved thereby that the sensor is a measuring coil and that the measuring coil is disposed on the lead-through contact such that it is galvanically isolated from the same.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: March 31, 2020
    Assignee: HANON SYSTEMS
    Inventors: Stephan Werker, Wilfried Pfahl, Mario Lenz
  • Patent number: 10603098
    Abstract: An electrosurgical generator includes a gain-compensated full bridge topology. Gain nonlinearity is corrected by applying impedance and phase correction factors to a control loop to achieve a linear gain structure. In embodiments, gain compensation is performed by comparing an RF setpoint signal with a calculated output signal to generate a first error signal. An impedance correction factor is applied to the first error signal to generate a second error signal. The second error signal is processed by a proportional-integral-derivative controller to generate a phase control signal. A phase control correction factor is applied to the phase control signal to generate a corrected pulse width modulation driving signal, which is used to generate PWM driving signals for a full-bridge inverter. One or more sensors provide feedback for comparison with the RF setpoint.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: March 31, 2020
    Assignee: Covidien LP
    Inventors: Aaron Mattmiller, Donald Tonn, Alexander M. Waskiewicz
  • Patent number: 10582964
    Abstract: A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator in response to a reliable sensor signal such that the electrosurgical generator enters energy control mode, wherein the electrosurgical generator matches an output of the control signal with a predetermined value from the map.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 10, 2020
    Assignee: Covidien LP
    Inventors: Craig Weinberg, Kari Leidich
  • Patent number: 10555768
    Abstract: Systems and methods to confirm safe delivery of treatment energy to a patient by identifying a presence of a fault in an energy delivery pathway and identifying a location of the fault within the device. The system includes a processing unit configured to calculate blood impedances external to the device based on known impedance characteristics of the device, and then to calculate impedances within the device during energy delivery based on the calculated blood impedances. The processing unit prevents the delivery of energy in an energy delivery pathway that is determined to be compromised. The processing unit is also configured to compare times for two different frequencies to travel a predetermined distance, the difference in the times corresponding to a location of a fault within the energy delivery pathway.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: February 11, 2020
    Assignee: Medtronic, Inc.
    Inventors: Steven J. Fraasch, Catherine R. Condie, Trenton J. Rehberger, Mark T. Stewart, Qin Zhang
  • Patent number: 10559893
    Abstract: Disclosed are various embodiments for preventing theft of energy transmitted as a guided surface wave along the surface of a terrestrial medium, by pulsing the transmitted energy and protecting authorized devices from the pulse. In one embodiment, a guided surface wave receive structure is configured to obtain electrical energy from a guided surface wave. An electrical load coupled to the guided surface wave receive structure. The electrical load is experienced as a load at an excitation source coupled to a guided surface waveguide probe that is generating the guided surface wave with an electrical field strength that may be selectively increased. A pulse protection circuit is employed to selectively protect the electrical load from an increase in electrical energy received by the guided surface wave receive structure when the electrical field strength is selectively increased, while unprotected circuits may be damaged or disrupted by the pulse.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: February 11, 2020
    Assignee: CPG Technologies, LLC
    Inventors: James F. Corum, Kenneth L. Corum, Stephen W. Wilson, Joseph F. Pinzone
  • Patent number: 10548660
    Abstract: A method of managing a system of minimally invasive surgery. The management method includes providing a practitioner with a minimally invasive surgery system including a controller. One or more use parameters is stored to memory associated with the controller. In addition, an electrosurgical probe having its own memory is provided to mate with the remaining elements of the system. Complementary use parameters are stored in the memory of the probe. The management method also includes communicating and comparing the use parameters of the controller with the complementary use parameters of the probe and managing the use of the electrosurgical probe according to the use parameters.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: February 4, 2020
    Assignee: SERENE MEDICAL, INC.
    Inventors: William M. Janssen, James P. Newman, Ammon B. Balaster, Jeffrey M. Buske
  • Patent number: 10542872
    Abstract: Disclosed embodiments include apparatuses, systems, and methods for positioning electrodes within a body. In an illustrative embodiment, an apparatus for slidably moving multiple features relative to a sheath inserted into a body and positioned relative to a reference point includes a primary actuator configured to move a primary electrode, a secondary actuator configured to move a secondary electrode, and a control mechanism. The control mechanism is configured to selectively prevent movement of at least one of the primary actuator based on a position of the secondary actuator and of the secondary actuator based on a position of the primary actuator and lock positions of the primary actuator and the secondary actuator.
    Type: Grant
    Filed: March 19, 2017
    Date of Patent: January 28, 2020
    Assignee: Spiration, Inc.—Olympus Respiratory America
    Inventors: Brandon J. Shuman, David H. Dillard, Peter A. Lambe, Nathan Dale, Cassandra R. Saleira, Fan Zhang, Nicolas G. Hostein, Randall D. Mills
  • 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: 10517664
    Abstract: A surgical instrument having an end effector mounted on the end of an elongate shaft extending from a handle. The end-effector is capable of different operations, including grasping, cutting, and sealing and/or coagulating tissue, and one of the operations is controlled by a trigger mechanism contained within the handle. In some embodiments, the end effector includes a blade assembly, the trigger mechanism being arranged to drive the blade assembly longitudinally within the elongate shaft. Specifically, the trigger mechanism is formed of a three pivot slider-crank mechanism, wherein one of the pivot points includes a component to which the proximal end of the blade assembly is connected. In this respect, the proximal end of the blade assembly has a distinctive profile corresponding to the internal profile of the component such that the blade can be easily connected to the component without the need for any further features and subsequently retained therein.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: December 31, 2019
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Marno Nagtegaal
  • Patent number: 10507056
    Abstract: In the present invention, a system and method for determining the orthogonality and applied force vector of an ablation catheter includes the steps of providing an electrophysiology system including an RF generator, a processor operably connected to the RF generator, a display operably connected to the processor and an ablation catheter operably connected to the RF generator and the processor, the catheter including an ablation electrode disposed opposite the RF generator and a number of microelectrodes disposed on and electrically isolated from the ablation electrode, the processor configured to compare data signals obtained from the microelectrodes with one another to derive a difference value for each pair of data signals, obtaining data signals from the microelectrodes, comparing the data signals from microelectrode pairs to determine difference values and generating a visual representation on the display of the orthogonality and applied force vector of the ablation electrode using the difference values.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: December 17, 2019
    Assignee: General Electric Company
    Inventors: Adrian F. Warner, Claudio P. Mejia, Daniel R. Schneidewend, Rodger F. Schmit, Timothy P. Stiemke
  • Patent number: 10492850
    Abstract: An electrosurgical generator and associated methods determine a real part of the impedance of treated tissue. The electrosurgical generator includes an output stage, a plurality of sensors, and a controller that controls the output stage. The controller includes a signal processor that determines an RMS voltage, an RMS current, an average power, and a real part of the impedance of the treated tissue based on measured voltage and current by using a plurality of averaging filters. The controller controls the output stage to generate electrosurgical energy based on at least the determined real part of the impedance.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 3, 2019
    Assignee: COVIDIEN LP
    Inventors: Donald W. Heckel, Andrey Belous
  • Patent number: 10441376
    Abstract: Minimally invasive robotic surgical instruments and related methods are disclosed. A surgical instrument includes an interface fitting that couples a proximal chassis of the instrument with a holding fixture of a robotic manipulator. A securing feature releasably prevents relative axial sliding between the interface fitting and the chassis. In response to binding of the surgical instrument within a minimally invasive surgical site so as to inhibit removal of the surgical instrument from the surgical site and inhibit disengagement of the interface fitting from the holding fixture, the securing feature can be released to allow relative axial sliding between the interface fitting and the chassis, thereby allowing the holding fixture and the interface fitting to be separated from the rest of the surgical instrument and repositioning of the robotic manipulator out of the way.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: October 15, 2019
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Grant Duque, Gregory W. Dachs, II
  • Patent number: 10405915
    Abstract: An electrosurgical unit including a radio frequency generator configured to generate electrosurgical energy. The radio frequency generator includes a first receptacle configured to electrically couple with an electrosurgical hand piece configured to deliver bipolar radiofrequency energy. A second receptacle is included and configured to electrically couple with an electrosurgical hand piece configured to deliver monopolar radiofrequency energy. The radiofrequency generator includes a relay circuit configured to allow simultaneous radiofrequency energy delivery to the electrosurgical hand pieces in the first receptacle and the second receptacle.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: September 10, 2019
    Assignee: Medtronic Advanced Energy LLC
    Inventors: Jesse A. Smith, David Hubelbank, Duane Marion
  • Patent number: 10398501
    Abstract: Methods, systems, and apparatuses for performing a renal denervation procedure using an ablation catheter are described. An ablation catheter system may include an ablation catheter including at least one electrode, a generator, and a pulse rate detector and feedback mechanism in electrical connection with the generator. In one embodiment, a method for controlling the temperature of a lesion created inside of a patient includes determining the pulse rate of the patient prior to, and optionally during, a renal denervation procedure and adjusting the amount of energy distributed to an ablation catheter electrode based at least in part on the pulse rate of the patient so as to control the temperature of the lesion being created. By controlling the temperature of the lesion during the ablation process, more consistent patient outcomes may be provided.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: September 3, 2019
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventor: Steven Willard
  • Patent number: 10390879
    Abstract: This document provides devices and methods for the treatment of heart conditions, hypertension, and other medical disorders. For example, this document provides devices and methods for treating atrial fibrillation by performing thoracic vein ablation procedures, including pulmonary vein myocardium ablation. In some embodiments, the ablation is performed in coordination with the delivery a pharmacological agent that can abate the formation of tissue stenosis or neointimal hyperplasia caused by the ablation.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: August 27, 2019
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Samuel J. Asirvatham, David R. Holmes, Jr.
  • Patent number: 10376305
    Abstract: Aspects of the present disclosure are presented for a medical instrument configured to adjust the power level for sealing procedures to account for changes in tissue impedance levels over time. In some aspects, a medical instrument may be configured to apply power according to a power algorithm to seal tissue by applying a gradually lower amount of power over time as the tissue impedance level begins to rise out of the “bathtub region,” which is the time period during energy application where the tissue impedance is low enough for electrosurgical energy to be effective for sealing tissue. In some aspects, the power is then cut once the tissue impedance level exceeds the “bathtub region.” By gradually reducing the power, a balance is achieved between still applying an effective level of power for sealing and prolonging the time in which the tissue impedance remains in the “bathtub region.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 13, 2019
    Assignee: Ethicon LLC
    Inventors: David C. Yates, Amy M. Krumm, Mark A. Davison
  • Patent number: 10368942
    Abstract: The invention generally relates to devices and methods for treating cardiac tissue, including percutaneous closure of cardiac openings such as a patent foramen ovale (PFO) and obliteration of the cardiac cul-de-sacs. The invention includes a device having at least one elongated member. The elongated member has a first material and a second material interwoven with at least a portion of the first material. The second material is capable of transferring energy to tissue in need of treatment.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: August 6, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Sean Forde
  • Patent number: 10357308
    Abstract: A high-frequency surgical appliance has a peak value detection and control unit, having a current or voltage sensor designed to detect the current strength or the voltage of a high-frequency alternating current output to the load. The control unit has a root-mean-square value former or is connected thereto, connected to the sensor and forms a root-mean-square value of a high-frequency alternating current detected by the sensor. The control unit deactivates the high-frequency generator when, in the steady state of the HF high-voltage circuit, a quantity of an instantaneous peak value of a signal representing an instantaneous value of the high-frequency alternating current detected during operation by the sensor exceeds a quantity of a value derived from the root-mean-square value of the high-frequency alternating current detected during operation by the sensor. The sensor continuously detects the instantaneous value of the current or voltage flowing during operation into the HF high-voltage circuit.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: July 23, 2019
    Assignee: OLYMPUS WINTER & IBE GMBH
    Inventors: Uwe Fischer, Tino Kirfe, Stefan Schiddel, Lutz Kersten, Frank Breitsprecher
  • Patent number: 10350003
    Abstract: Systems, methods, and devices allow percutaneous mapping, orientation and/or ablation in bodily cavities or lumens. Such may include a structure that is percutaneously positionable in a cavity, such as an intra-cardiac cavity of a heart. Transducers carried by the structure are responsive to blood flow. For example, the transducers may sense temperature, temperature being related to convective cooling caused by blood flow. A controller discerns positional information or location, based on signals from the transducers. For example, blood flow may be greater and/or faster proximate a port in cardiac tissue than proximate tissue spaced from the port. Position information may allow precise ablation of selected tissue, for example tissue surround a port in the intra-cardiac cavity.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 16, 2019
    Assignee: KARDIUM INC.
    Inventors: Daniel Robert Weinkam, Jeffery Charles Brewster
  • Patent number: 10335614
    Abstract: Various embodiments are directed to a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. The method comprises generating at least one electrical signal. The at least one electrical signal is monitored against a first set of logic conditions. A first response is triggered when the first set of logic conditions is met. A parameter is determined from the at least one electrical signal.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: July 2, 2019
    Assignee: Ethicon LLC
    Inventors: Jeffrey D. Messerly, Eitan T. Wiener, Brian T. Noyes, Jeffrey L. Aldridge, James R. Giordano, Robert J. Beetel, III, Daniel J. Abbott, Matthew C. Miller, Jeffrey P. Wiley, Nathan J. Price, Daniel W. Price, Robert L. Koch, Jr.
  • Patent number: 10335222
    Abstract: An induction coil vapor generator is provided that may include any of a number of features. One feature of the vapor generator is that it can inductively generate high quality condensable vapor. The vapor generator can comprise an outer assembly that supports a coil wire, and an inner assembly disposed in the outer assembly. The inner assembly can house a plurality of microtubes configured to be inductively heated by the coil wire to convert a fluid to condensable vapor. The generator can be disposed in a medical device to treat tissue with vapor. One feature of the medical device is that it can apply condensable vapor energy to tissue, such as a prostrate, to shrink, damage, denaturate the prostate. Methods associated with use of the vapor generator are also covered.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: July 2, 2019
    Assignee: NxThera, Inc.
    Inventors: Michael Hoey, Roger Noel Hastings, Stephanos Paulos
  • Patent number: 10331877
    Abstract: An apparatus includes a device interface system having a first connector and second connector, each with a respective optical signal path arrangement operatively aligned when the two connectors are in a connected position. The operative alignment allows a base optical signal to be transmitted from the first connector to the second connector. An optical signal modification arrangement is included in the second connector and is operable to provide a predefined modification to the base optical signal to result in an optical ID signal that is transmitted back to the first connector. An identification processing unit associated with the first connector receives an ID input signal corresponding to the optical ID signal and produces an identification output responsive to the ID input signal.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: June 25, 2019
    Assignee: KARL STORZ Imaging, Inc.
    Inventor: Joseph Sanandajifar
  • Patent number: 10314642
    Abstract: An electrode structure and a mechanism for automated or user-selected operation or compensation of the electrodes, for example to determine tissue coverage and/or prevent arcing between bottom electrodes during electrocautery is disclosed.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: June 11, 2019
    Assignee: Aesculap AG
    Inventors: Joseph Charles Eder, Benjamin Theodore Nordell, II, Peter Seth Edelstein, Camran Nezhat, Mark Kane
  • Patent number: 10314655
    Abstract: Systems and methods are disclosed for providing personalized estimates of bioheat transfer through a patient's body or a portion of a patient's body. One method includes receiving a patient-specific vascular model of a patient's anatomy, including at least one vessel of the patient; receiving a patient-specific tissue model including at least a portion of tissue of the patient's anatomy; receiving an estimate of heat content of the portion of tissue of the patient-specific tissue model or tissue surrounding the portion of tissue; determining an estimate of heat distribution of the portion of tissue of the patient-specific tissue model or tissue surrounding the portion of tissue based on the vascular model, the tissue model, or the received estimate of heat content; and output the determined estimate of heat distribution to a storage medium or user display.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: June 11, 2019
    Assignee: HeartFlow, Inc.
    Inventors: Leo Grady, Charles A. Taylor, Christopher K. Zarins
  • Patent number: 10299855
    Abstract: A medical coagulation instrument having a shaft as well as at least one electrode tip that extends beyond the distal end of the shaft. To create a coagulation instrument whose electrodes are of simple structure and ensure an atraumatic and safe handling, at least one electrode tip should be widened or be configured as widening in the distal direction.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 28, 2019
    Assignee: Karl Storz SE & Co. KG
    Inventors: Uwe Bacher, Rainer Hermle, Andreas Efinger, Hans-Peter Eisele
  • Patent number: 10285750
    Abstract: The systems and methods according to embodiments of the present disclosure provide optimal tissue effect during an electrosurgical procedure. A system and method for controlling an electrosurgical generator is provided including sensing an impedance of target tissue; generating electrosurgical energy in a first phase at a first power level until the sensed impedance of the target tissue is greater than a first threshold impedance; generating a plurality of pulses of electrosurgical energy in a second phase at a second power level, each pulse being generated until the sensed impedance of the target tissue is greater than a second threshold impedance set for that pulse; and generating at least one high-voltage pulse in a third phase at a third power level for a predetermined duration to divide the target tissue.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 14, 2019
    Assignee: COVIDIEN LP
    Inventors: Rebecca J. Coulson, Gary M. Couture, Sara E. Anderson, Prakash Manley
  • Patent number: 10271896
    Abstract: An electrosurgical instrument includes a housing, an elongated shaft, and an end-effector assembly. The proximal end of the shaft is operably associated with the housing. The end-effector assembly is operably coupled to the distal end of the shaft and includes first and second jaw members. Each of the first and second jaw members includes a sealing plate and a bipolar electrode. Either one or both of the first and second jaw members is movable from a position in spaced relation relative to the other jaw member to at least one subsequent position wherein the sealing plates cooperate to grasp tissue therebetween. The electrosurgical instrument includes a semiconductor switch operably coupled to at least one of the sealing plates and at least one of the bipolar electrodes. The semiconductor switch is configured to enable user selection between energizing the at least one sealing plate or the at least one bipolar electrode.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: April 30, 2019
    Assignee: COVIDIEN LP
    Inventors: Joe D. Sartor, Daniel Friedrichs
  • Patent number: 10272271
    Abstract: An ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly affected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 30, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Chris J. Diederich, Jeffrey C. Lotz, Will Nau, David S. Bradford
  • Patent number: 10238447
    Abstract: A medical system for ablating a tissue site with real-time monitoring during an electroporation treatment procedure. A pulse generator generates a pre-treatment (PT) test signal having a frequency of at least 1 MHz prior to the treatment procedure and intra-treatment (IT) test signals during the treatment procedure. A treatment control module determines impedance values from the PT test signal and IT test signals and determines a progress of electroporation and an end point of treatment in real-time based on the determined impedance values while the treatment progresses.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: March 26, 2019
    Assignee: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
    Inventors: Robert Neal, II, Rafael V Davalos
  • Patent number: 10238414
    Abstract: A joint surgical system includes, a treatment tool, a high-frequency output section which outputs high-frequency energy to the treatment tool, an ultrasonic output section which outputs ultrasonic energy to the treatment tool, a measurement section which measures a temperature of the liquid, and a control section which controls the high-frequency output section to stop output of the high-frequency energy and controls the ultrasonic output section to continue output of the ultrasonic energy when a measurement temperature measured by the measurement section is equal to or higher than a predetermined temperature.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 26, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Manabu Ishikawa