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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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12-01-2012 дата публикации

Energy based devices and methods for treatment of patent foramen ovale

Номер: US20120010608A1

Автор: Dan Francis, Hanson S. Gifford, Iii, Jose Alejandro, Kenneth Horne, Mark E. Deem, William Malecki

Принадлежит: Terumo Corp

Methods and apparatus for treatment of patent foramen ovale (PFO) provide for applying energy to tissues adjacent the PFO with a catheter device to substantially close the PFO acutely. Apparatus generally includes a catheter device having at least one energy transmission member at or near its distal end configured to apply energy to PFO tissues to acutely, substantially close the PFO. Applied energy may be monopolar or bipolar radiofrequency energy or any other suitable energy, such as laser, microwave, ultrasound, resistive heating or the like. Some embodiments of a catheter device fuirther include one or more tissue apposition members near the distal end for helping bring PFO tissues together, such as a PFO covering member, a vacuum applying member and/or the like. PFO closure via energy-based approaches of the invention may help prevent stroke, treat migraine headache, and possibly treat or prevent other medical conditions.

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Номер записи: 1

19-01-2012 дата публикации

Surgical instruments with electrodes

Номер: US20120012636A1

Автор: Andrew T. Beckman, Bradley E. White, Foster B. Stulen, Jason L. Harris, Jeffrey S. Swayze, Paul Guerra, Prasanna Malaviya

Принадлежит: Ethicon Endo Surgery Inc

A surgical stapling assembly is configured to be used to form a tissue seal having an arcuate portion. The surgical stapling assembly comprises an end-effector extending from the distal end of the shaft. The end-effector comprises a first portion and a second portion. The first portion comprises a first face at least partially surrounding the aperture, a staple cavity defined in the first face, a staple removably positioned within the staple cavity, and a first electrode positioned one of on and proximate to the first face. The second portion comprises a second face, an anvil pocket defined in the second face, and a second electrode positioned one of on and proximate to the second face, and a second electrode. The first electrode and the second electrode each comprise an arcuate portion. The first electrode has a different polarity than the second electrode.

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Номер записи: 2

19-01-2012 дата публикации

Surgical fastening devices comprising rivets

Номер: US20120016413A1

Автор: Gavin M. Monson, John V. Hunt, Omar J. Vakharia, Richard W. Timm, Robert J. Laird, Suzanne E. Thompson

Принадлежит: Ethicon Endo Surgery Inc

An end-effector assembly is configured to be attached to a surgical instrument. The end-effector assembly comprises a first jaw comprising an electrode, a second jaw comprising a rivet cavity, and a rivet. At least one of the first jaw and the second jaw is movable relative to the other jaw. At least a portion of the rivet is removably positioned within the rivet cavity. The rivet comprises a tissue-engaging portion, an elongate portion extending from the tissue-engaging portion, and a meltable portion. The end-effector assembly comprises a driver configured to move the rivet between a first position in which the rivet is stored at least partially within the rivet cavity and a second position in which the rivet is at least partially deployed from the rivet cavity. The meltable portion of the rivet is positioned against or adjacent to the electrode when the rivet is in the second position.

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Номер записи: 3

16-02-2012 дата публикации

Surgical access apparatus

Номер: US20120041271A1

Автор: David Farascioni, Skott Greenhalgh, Thomas Wenchell

Принадлежит: TYCO HEALTHCARE GROUP LP

An access apparatus for use during a surgical procedure to provide access to the interior of the body includes an access member defining a longitudinal axis and having a proximal end for being disposed at an exterior side of the body and a distal end for extending into the interior of the body. The access member has a bore therethrough dimensioned to permit passage of an object. A seal is disposed within the bore of the access member. The seal includes a fabric material and an elastomeric material, and defines an internal passageway dimensioned to form a substantial sealing relation with an object inserted therethrough.

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Номер записи: 4

16-02-2012 дата публикации

High frequency surgical generator comprising an additional transformer

Номер: US20120041435A1

Автор: Erich Werner, Heiko Schall, Jürgen BELLER, Marc Kegreiss

Принадлежит: Erbe Elecktromedizin GmbH

An HF surgical appliance comprising an HF generator having an output circuit, which contains an output transformer and has an output impedance. Output terminals, to which an HF surgical instrument can be connected, are provided, said instrument supplying a high-frequency current with a specific frequency into tissue to treat the same. An additional output circuit containing an additional transformer, which is connected between the output circuit and the output terminals to reduce the output impedance is also provided. In this way, the HF surgical appliance can be operated with a high power output even on loads having low impedance.

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Номер записи: 5

15-03-2012 дата публикации

Radiofrequency hyperthermia device with target feedback signal modulation

Номер: US20120065714A1

Автор: Andras Szász, Nora Iluri, Olivér SZÁSZ

Принадлежит: ONCOTHERM KFT

The present invention relates to a radiofrequency (RF) hyperthermia device for capacitive coupling comprising a radiofrequency source, an amplifier, a sensor, a feedback amplifier and a modulation signal generator, wherein the radiofrequency source produces a source signal which is modulated by the modulation signal generator, amplified by the amplifier and directed to a target, the sensor receives a feed back signal from the target that is directed to the feed back amplifier, wherein the feedback signal is amplified by the feedback amplifier and modulates the source signal to generate a target modified signal. This radiofrequency (RF) hyperthermia device is designed for increasing the selectivity of the hyperthermia treatment.

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Номер записи: 6

22-03-2012 дата публикации

Material delivery system

Номер: US20120071715A1

Автор: Mordechay Beyar, Oren Globerman, Rami Keller

Принадлежит: By Pass Inc

A method for injecting a therapeutic agent into a target tissue, the method comprising: (a) providing an expandable member; (b) positioning said expandable member in proximity to the target tissue; (c) Introducing the therapeutic agent into the expandable member until a desired pressure is achieved; and (d) creating a plurality of small apertures in the expandable member.

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Номер записи: 7

29-03-2012 дата публикации

Attenuated RF Power for Automated Capsulorhexis

Номер: US20120078242A1

Автор: Ahmed Salehi, Ann Yadlowsky, Glenn Robert Sussman, Guangyao Jia

Принадлежит: Alcon Research LLC

A capsulorhexis apparatus includes a capsulorhexis probe configured for insertion into an eye through an incision and a pulse generator configured to deliver at least one radio-frequency (RF) pulse to the capsulorhexis probe. The delivered RF pulse has a pre-determined attenuation profile such that the power level of the delivered RF pulse is substantially attenuated over the RF pulse's duration. In some embodiments, the pulse generator is configured to deliver a series of two or more RF pulses to the eye, such that the energy of each of the second and subsequent pulses of the series is substantially attenuated relative to the energy of the immediately preceding pulse.

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Номер записи: 8

10-05-2012 дата публикации

Medical device usage data processing

Номер: US20120116367A1

Автор: Aron O. Zingman, Ashvani K. Madan, Donna L. Korvick, Foster B. Stulen, John W. Willis, Kevin L. Houser, Timothy G. Dietz

Принадлежит: Ethicon Endo Surgery Inc

A surgical instrument includes a handle assembly having a lower portion with a hingedly attached end piece. When open, the end piece allows for receipt of a data card in a lower portion aperture. When closed, the end piece covers the aperture. In another version, the aperture is configured to receive a data card and battery pack assembly. Information is readable from and to the data card to measure a number of minutes the instrument was used during a procedure. Such information is communicated via wired or wireless communication to another device to determine a payment for the number of minutes used. Minutes are buyable from the device and writable onto the data card prior to insertion of the card into the instrument. In another version, a testing sequence is used in saline or via a tissue proxy to test the functionality of an instrument prior to a procedure.

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Номер записи: 9

10-05-2012 дата публикации

Surgical instrument with charging station and wireless communication

Номер: US20120116381A1

Автор: Daniel W. Price, Gavin M. Monson, Hitesh Jain, Kevin L. Houser

Принадлежит: Ethicon Endo Surgery Inc

An apparatus comprises an electrically power surgical instrument having a handle assembly. The apparatus also comprises a communication device positioned within the handle assembly. The communication device is operable to communicate with at least a portion of the electrically powered surgical instrument. The apparatus further comprises an external device in wireless communication with the communication device. The external device is operable to receive information from the communication device and the external device is operable to provide an output viewable to the user.

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Номер записи: 10

17-05-2012 дата публикации

Methods and devices for controlling energy during ablation

Номер: US20120123400A1

Автор: Catherine R. Condie, David Francischelli, Jinback Hong

Принадлежит: MEDTRONIC INC

System and method for ablating tissue of a heart of a patient. The tissue is characterized, then a predetermined ablation procedure is selected based on the characterization, ablation energy is delivered according to procedure with the ablation device, and a temperature of the tissue and an impedance of the tissue are determined. Delivery of ablation energy is ceased at a time based, at least in part, on when at least one of an accumulated effective temperature of the tissue over time exceeds a thermal dose threshold and an accumulated effective energy of the tissue over time exceeds an effective energy threshold. Else, the ablation energy delivered is modified by adjusting the energy level based, at least in part, on at least one of the temperature being outside of a predetermined temperature range and the impedance being outside of an impedance range.

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Номер записи: 11

21-06-2012 дата публикации

Systems and methods for automatically identifying and segmenting different tissue types in ultrasound images

Номер: US20120157842A1

Автор: Cynthia Elizabeth Landberg Davis, Gokul Swamy, Hae Won Lim, Navneeth Subramanian, Nitya Subramaniam, Ying Fan

Принадлежит: General Electric Co

A system for providing non-invasive ultrasound based treatment to a region of interest is provided. The system comprises an imaging unit for imaging one or more tissue types in the region of interest, an image processing unit that is configured to identify the one or more tissue types in the region of interest, an ultrasound transducer that is configured to focus an ultrasound beam to ablate at least a portion of the identified tissues, and a controller unit that controls a delivery of the ultrasound beam to the region of interest.

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Номер записи: 12

21-06-2012 дата публикации

System for controlling tissue ablation using temperature sensors

Номер: US20120157890A1

Автор: Andres Claudio Altmann, Assaf Govari, Yaron Ephrath

Принадлежит: Biosense Webster Israel Ltd

Body tissue ablation is carried out by inserting a probe into a body of a living subject, urging the probe into contact with a tissue in the body, generating energy at a power output level, and transmitting the generated energy into the tissue via the probe. While transmitting the generated energy the ablation is further carried out by determining a measured temperature of the tissue and a measured power level of the transmitted energy, and controlling the power output level responsively to a function of the measured temperature and the measured power level. Related apparatus for carrying out the ablation is also described.

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Номер записи: 13

21-06-2012 дата публикации

Global endometrial ablation device

Номер: US20120157985A1

Автор: Lisa M. BALLOU, Melissa D. Caputo, Pajhand Iranitalab, Xiaodong Xiang

Принадлежит: Individual

An endometrial ablation apparatus is provided which includes an end member with a plurality of electrodes. The probe is attached to a controller that includes a multiplexer capable of activating each electrode individually or multiple electrodes simultaneously, such that each individual electrode may be energized separately in series to complete the ablation process. A method of performing ablation using such an apparatus is also provided.

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Номер записи: 14

30-08-2012 дата публикации

Devices and methods for treatment of luminal tissue

Номер: US20120220996A1

Автор: Carson J. Shellengberger, George H. Smith, Jennifer A. Hodor, Jerome Jackson, Roger A. Stern, Roy D. Corbitt, Vincent N. Sullivan

Принадлежит: TYCO HEALTHCARE GROUP LP

Devices and methods are provided for treatment of tissue in a body lumen with an electrode deployment device. Embodiments typically include a device with a plurality of electrodes having a pre-selected electrode density arranged on the surface of a support. The support may comprise a non-distensible electrode backing that is spirally furled about an axis and coupled to an expansion member such as an inflatable elastic balloon. In some embodiments, the balloon is inflated to selectively expose a portion of the electrode surface while maintaining the electrode density.

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Номер записи: 15

13-09-2012 дата публикации

System and method for renal artery occlusion during renal denervation therapy

Номер: US20120232409A1

Автор: Allan C. Shuros, Jeffrey E. Stahmann

Принадлежит: Boston Scientific Scimed Inc

A catheter includes a flexible shaft having a length sufficient to access a patient's renal artery relative to a percutaneous access location. A treatment arrangement is provided at a distal end of the shaft and configured for deployment in the renal artery. The treatment arrangement includes an ablation arrangement configured to deliver renal denervation therapy. An occlusion arrangement is configured for deployment in the renal artery and for altering blood flow through the renal artery during or subsequent to renal denervation therapy delivery. A monitoring unit is configured for monitoring for a change in one or more physiologic parameters influenced by the renal denervation therapy. The monitoring unit is configured to produce data useful in assessing effectiveness of the renal denervation therapy based on the physiologic parameter monitoring.

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Номер записи: 16

04-10-2012 дата публикации

Surgical Devices And Methods of Use Thereof

Номер: US20120253343A1

Автор: Brian M. Conley, Michael E. McClurken, Roger D. Greeley

Принадлежит: MEDTRONIC ADVANCED ENERGY LLC

The invention provides surgical devices and methods to treat tissue. In one device embodiment, the invention comprises a bipolar electrosurgical device to treat tissue in a presence of radio frequency power and a fluid provided simultaneously from a distal portion of the device, with the device comprising a disc shaped distal end. In one method embodiment, the invention comprises a method of treating tissue having a blood vessel during spine surgery, with the method comprising pressing a portion of the blood vessel against a supporting spine structure with a surgical device to provide a compressed portion of the blood vessel, and heating the compressed portion of the blood vessel with the surgical device sufficiently to inhibit a blood flow through the vessel after the surgical device is removed from the blood vessel.

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Номер записи: 17

11-10-2012 дата публикации

Method and System for Using Common Subchannel to Assess the Operating Characteristics of Transducers

Номер: US20120259327A1

Автор: Gleb V. Klimovitch, Shena H. Park, Timothy E. Ciciarelli

Принадлежит: St Jude Medical Atrial Fibrillation Division Inc

A system and method for using a common subchannel to assess operating characteristics of one of a plurality of transducers coupled to said subchannel is disclosed. The of transducers are divided into subsets, with each subset is coupled to a subchannel. The system is configured to activate a selected transducer on the subchannel and the subchannel delivers operational information on the activated transducer. The present invention reduces the number of subchannels required to collect information on the plurality of transducers. The present invention permits a more compact ablation device to be constructed based on the invention's ability to reduce the total number of subchannels required to collect transducer information.

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Номер записи: 18

01-11-2012 дата публикации

Dissection handpiece and method for reducing the appearance of cellulite

Номер: US20120277674A1

Автор: Adnan I. Merchant, Ben F. Brian, III, James E. Chomas, Robert L. Clark, Iii

Принадлежит: Cabochon Aesthetics Inc

A dermatological skin treatment device is provided. The device comprises a handpiece and a cutting tool, wherein the tool is inserted through the conduit and percutaneously inserted into a tissue disposed within a recessed area of the handpiece. The device and method cut the fibrous structures under the skin that cause cellulite at an angle substantially parallel to the surface of the skin and replace these structures with a non-cellulite forming structure by deploying a highly fibrous mesh through a single needle hole to create a highly fibrous layer directly or through wound healing processes.

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Номер записи: 19

08-11-2012 дата публикации

Temperature Monitoring Return Electrode

Номер: US20120283721A1

Автор: David Gresback, James E. Dunning, Peter Gadsby

Принадлежит: TYCO HEALTHCARE GROUP LP

An electrosurgical return electrode is disclosed. The return electrode includes a first and second flexible conductive material layers and a material layer disposed between the first and second conductive material layers. The material layer is transitionable between a solid state and a non-solid state, the material layer is also configured to melt upon an increase in temperature beyond a predetermined threshold, thereby increasing conductivity between the first and second conductive material layer.

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Номер записи: 20

29-11-2012 дата публикации

Treatment apparatus with frequency controlled treatment depth

Номер: US20120303012A1

Автор: Greg Leyh

Принадлежит: Cutera Inc

An electro-surgical system actively maintains an optimal heating profile at the electrode-patient contact surface under varying load resistivity, thereby reducing the risk of burns and maximizing patient comfort. A set of temperature sensors is integrated within the electrode assembly of the electrosurgical system. The sensors are located both at the center and the edges of the electrode. The sensors are thermally coupled to the electrode-patient contact surface. As RF power is applied, a control loop monitors the temperature at the center and edges of the electrode. If the edge temperature of the electrode is high compared to its center temperature, then the control loop increases the operating frequency, effectively driving heat towards the center of the electrode. Conversely, if the edge temperature of the electrode is low compared to its center temperature, then the control loop decreases the operating frequency, effectively driving heat towards the edges of the electrode.

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Номер записи: 21

13-12-2012 дата публикации

Imaginary impedance process monitoring and intelligent shut-off

Номер: US20120316556A1

Автор: Ronald J. Podhajsky

Принадлежит: TYCO HEALTHCARE GROUP LP

An electrosurgical generator for supplying electrosurgical energy to tissue is disclosed. The generator includes sensor circuitry configured to measure an imaginary impedance and/or a rate of change of the imaginary impedance of tissue. The generator also includes a controller configured to regulate output of the electrosurgical generator based on the measured imaginary impedance and/or the rate of change of the imaginary impedance.

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Номер записи: 22

31-01-2013 дата публикации

Test jig for ablator

Номер: US20130027069A1

Автор: Andres Claudio Altmann, Assaf Govari, Tom Sagie Stern, Yaron Ephrath

Принадлежит: Biosense Webster Israel Ltd

In techniques for testing and calibrating an ablator, a tissue probe emulator is connectable to a tissue ablator being tested. The emulator includes a temperature sensor, a thermoelectric unit operative to vary a temperature sensed by the temperature sensor, an adjustable electrical load, electrical control circuitry connected to the thermoelectric unit and the electrical load and operative to independently adjust the electrical load and an output of the thermoelectric unit. The emulator conveys signals emitted by the temperature sensor to the tissue ablator and conveys an ablation energy output of the tissue ablator to the electrical load.

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Номер записи: 23

14-02-2013 дата публикации

Lesion generation through bone using histotripsy therapy without aberration correction

Номер: US20130041293A1

Автор: Charles A. Cain

Принадлежит: University of Michigan

A medical imaging and therapy device is provided that may include any of a number of features. The device may include a Histotripsy transducer, a generator and controller configured to deliver Histotripsy energy from the transducer to target tissue, and an imaging system. In some embodiments, a method of treating tissue with Histotripsy energy comprises positioning a focus of a histotripsy transducer on a target tissue, delivering histotripsy energy from the histotripsy transducer through a bone aberrator, forming a histotripsy bubble cloud on the focus, and preventing the formation of secondary histotripsy bubble clouds without implementing an aberration correction algorithm.

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Номер записи: 24

21-02-2013 дата публикации

Cardiac Electrosurgery

Номер: US20130046305A1

Автор: Gareth Davies

Принадлежит: Baylis Medical Co Inc

Devices and methods are disclosed for providing access to the pericardial cavity while reducing risk of myocardial damage. The methods include maintaining the positions of a puncture device and of a portion of a parietal pericardium relative to one other while delivering energy from the puncture device to create a channel through the pericardium. Additional embodiments disclosed include delivering a pulse or pulses of energy to the parietal pericardium and attempting to advance the puncture device through the parietal pericardium between deliveries of energy pulses.

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Номер записи: 25

25-04-2013 дата публикации

Litz wire battery powered device

Номер: US20130103023A1

Автор: Alan E. Green, David I. Ruddenklau, David J. Stocks, Gavin M. Monson, Gordon J. Leather, John Hefin Bowen Evans, Paul C. Roberts, Robin M. Lee

Принадлежит: Ethicon Endo Surgery Inc

A medical instrument is disclosed. The medical instrument includes a housing and a handle for gripping by a user, an end effector coupled to the handle and having at least one electrical contact, a battery, and a radio frequency (RF) generation circuit coupled to and operated by the battery. The RF generation circuit is operable to generate an RF drive signal and to provide the RF drive signal to the at least one electrical contact, wherein the RF generation circuit is supported by the housing. The RF generation circuit includes a resonant circuit that includes at least one inductive element constructed of litz wire.

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Номер записи: 26

02-05-2013 дата публикации

Cryogenic balloon device with radiofrequency tip

Номер: US20130110098A1

Автор: Jean-Pierre Lalonde

Принадлежит: MEDTRONIC CRYOCATH LP

An intravascular ablation device, including a flexible elongate body; an expandable element positioned on the elongate body; a radiofrequency or electroporation treatment segment located distally of the expandable element; a cryogenic coolant source in fluid communication with an interior of the expandable element; and a radiofrequency or electroporation energy source in communication with the radiofrequency or electroporation treatment segment.

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Номер записи: 27

09-05-2013 дата публикации

Impedance mediated control of power delivery for electrosurgery

Номер: US20130116678A1

Автор: Miriam H. Taimisto, Roseanne Varner, Tim Koss

Принадлежит: Aesculap AG

A method of controlling electrosurgical power delivery is based on a comparison of sensed tissue impedance to various impedance threshold values. Energy is delivered to tissue in a sealing cycle as a series of pulses. A pulse has a profile with a preset energy starting value that increases at a ramping rate to a preset end value. Sensed impedance data are monitored throughout each pulse and compared to each of an impedance threshold value for RF setpoint, an impedance threshold value for cumulative time, and an impedance threshold value for energy cutback. Based on sensed impedance during a pulse, the profile of a subsequent pulse can be modified. In the event of a high impedance event that reflects low tissue presence, energy may be cutback. A sealing cycle is stopped when a cumulative amount of time with an impedance value over the impedance cumulative time threshold value reaches a limit.

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Номер записи: 28

16-05-2013 дата публикации

Dissection handpiece and method for reducing the appearance of cellulite

Номер: US20130123771A1

Автор: Adnan I. Merchant, Ben F. Brian, III, James E. Chomas, Robert L. Clark, Iii

Принадлежит: Cabochon Aesthetics Inc

A dermatological skin treatment device is provided. The device comprises a handpiece and a cutting tool, wherein the tool is inserted through the conduit and percutaneously inserted into a tissue disposed within a recessed area of the handpiece. The device and method cut the fibrous structures under the skin that cause cellulite at an angle substantially parallel to the surface of the skin and replace these structures with a non-cellulite forming structure by deploying a highly fibrous mesh through a single needle hole to create a highly fibrous layer directly or through wound healing processes.

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Номер записи: 29

16-05-2013 дата публикации

Catheter adapted for direct tissue contact and pressure sensing

Номер: US20130123775A1

Автор: Debby Grunewald, Meir Bar-tal

Принадлежит: Biosense Webster Israel Ltd

An irrigated ablation catheter adapted for direct tissue contact has micro-elements that provide more accurate sensing of tissue, including thermal and electrical properties for temperature and impedance and intracardiac ECG measurements. A pressure sensing assembly adds the ability to measure the force at the tip of the catheter as well as to have the micro-elements for accurately sensing tissue parameters. A system uses signals from the micro-elements (impedance, temperature, and ECG signals) as well as the measure of force or pressure at the tip electrode order to provide the operator with a means to control lesion depth, size, transmurality and to ablate tissue until successful treatment of an arrhythmia is achieved.

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Номер записи: 30

16-05-2013 дата публикации

Battery shut-off algorithm in a battery powered device

Номер: US20130123776A1

Автор: Alan E. Green, Clive Styler, David A. Snowdon, David I. Ruddenklau, David J. Stocks, Gavin M. Monson, Gordon J. Leather, Gregory A. Trees, John Hefin Bowen Evans, Paul C. Roberts, Paulo Alexandre de Torre Pinheiro, Robin M. Lee

Принадлежит: Ethicon Endo Surgery Inc

A medical instrument is disclosed. The medical instrument includes at least one electrical contact, a battery, a radio frequency (RF) generation circuit coupled to and operated by the battery and operable to generate an RF drive signal and to provide the RF drive signal to the at least one electrical contact, and a battery discharge circuit coupled to the battery. A processor is coupled to the battery discharge circuit and a memory is coupled to the processor. The memory stores machine executable instructions that when executed cause the processor to monitor activation of the RF generation circuit and disable the RF generation circuit when the RF drive signal is fired a predetermined number of times. The medical instrument may include an activation switch and/or a disposal switch supported by the housing.

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Номер записи: 31

30-05-2013 дата публикации

Electrosurgical radio frequency energy transmission medium

Номер: US20130138098A1

Автор: James H. Orszulak

Принадлежит: Covidien AG

A system and method for transmitting electrosurgical energy from a generator to an electrosurgical instrument are provided. The electrosurgical system includes a generator adapted to generate electrosurgical energy for treating tissue. The generator includes one or more active output terminals which supply energy to the tissue. The active output terminals are operatively connected to one or more supply lines. The generator also includes one or more return output terminal which returns energy from the tissue. The return output terminals are operatively connected to at least one return line. The system also includes an electrosurgical instrument operatively connected to the one or more supply lines and one or more return electrodes operatively connected to one or more return lines. The system further includes an electrosurgical cable including one or more supply lines and one or more return lines. The one or more supply lines and one or more return lines are wound in a double helix fashion such that the electrical field along the cable is mitigated along the length thereof.

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Номер записи: 32

20-06-2013 дата публикации

Self operated esthetic device with a substrate

Номер: US20130158634A1

Автор: Oded Ron Edoute, Orit Ron Edoute

Принадлежит: VENUS CONCEPT LTD

The present invention provides a self-operated device for treating a skin of a patient, comprising: a. a substrate having a first side and a second side; b. a plurality of RF electrodes arranged in said substrate, said RF electrodes are configured to emit RF radiation from said first side to the surface of said skin; c. at least one RF generator configured to generate pulses of current to said RF electrodes; and, d. a control unit connected to said at least one RF generator, said control unit is adapted to control the operation of said RF electrodes; wherein said control unit is adapted to control the operation of said RF electrodes according to a predetermined treatment protocol, such that the same activates or deactivates at least one of said RF electrodes at any predetermined time interval according to a predetermined pattern so as to achieve a particular therapeutic result.

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Номер записи: 33

27-06-2013 дата публикации

Impedance responsive ablation rf driving for moderating return electrode temperature

Номер: US20130165919A1

Автор: Gordon Epstein

Принадлежит: Halt Medical Inc

The inventive method for ablating a tissue mass associated with a human or animal patient being treated comprises positioning an ablating electrode in a tissue mass to be ablated. A plurality of return electrodes are positioned on the patient. Electrical energy is applied between the return electrodes and the ablating electrode. The temperature of the return electrodes is measured to generate a temperature measurement signal which is used to control ablation current through the return electrodes.

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Номер записи: 34

25-07-2013 дата публикации

Dissection handpiece and method for reducing the appearance of cellulite

Номер: US20130190739A1

Автор: Adnan I. Merchant, Ben F. Brian, III, James E. Chomas, Robert L. Clark, Iii

Принадлежит: Cabochon Aesthetics Inc

A dermatological skin treatment device is provided. The device comprises a handpiece and a cutting tool, wherein the tool is inserted through the conduit and percutaneously inserted into a tissue disposed within a recessed area of the handpiece. The device and method cut the fibrous structures under the skin that cause cellulite at an angle substantially parallel to the surface of the skin and replace these structures with a non-cellulite forming structure by deploying a highly fibrous mesh through a single needle hole to create a highly fibrous layer directly or through wound healing processes.

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Номер записи: 35

03-10-2013 дата публикации

Returned power for microwave applications

Номер: US20130256302A1

Автор: Amrish J. WALKE, Christine M. TATE, Christopher Ah NEW, Chun Yiu Chu, Dinesh I. Mody, Ketan Shroff, Kirby CHIANG

Принадлежит: MicroCube LLC

The present invention related to devices and methods that use returned power (RP) measurements during microwave energy delivery to perform one or more functions. For example, microwave devices and systems that comprise one or more features to measure the returned microwave power. One or more measurements of the returned microwave power may be used to obtain information about one or more of: antenna shape, system status and system performance. One or more measurements of the returned microwave power shaping elements may also be used to obtain information about one or more properties of the target material. The invention also discloses devices and methods for delivering microwave energy to a variety of target materials to achieve a variety of desired microwave effects.

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Номер записи: 36

24-10-2013 дата публикации

Skin treatment devices and methods

Номер: US20130282085A1

Автор: Daniel Lischinsky, Yoram Harth

Принадлежит: EndyMed Medical Ltd

A skin treatment device for home use is provided herein. The device has enhanced safety features and improved operation efficiency. RF energy is delivered under strict control to a relatively small and well localized volume of the skin, avoiding excessive heating of the skin surface. Surface heating is monitored both by direct temperature measurement and by movement monitoring of the device to ensure proper use and prevent skin overheating and the pain associated therewith.

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Номер записи: 37

07-11-2013 дата публикации

Inductively heated multi-mode surgical tool

Номер: US20130296838A1

Автор: David McNally, Kim Manwaring

Принадлежит: Domain Surgical Inc

Thermal, Electrosurgical and Mechanical modalities may be combined in a surgical tool. Potentially damaging effects in a first modality may be minimized by using a secondary modality. In one example, thermal hemostasis may thus help electrosurgical applications avoid the adverse tissue effects associated with hemostatic monopolar electrosurgical waveforms while retaining the benefits of using incising waveforms.

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Номер записи: 38

05-12-2013 дата публикации

Ablation device with drug delivery component

Номер: US20130324911A1

Автор: Allison Waller, Clifford J. Herman, Francesca Rossetto, Lan Pham, Les Hull, Paul DiCarlo, Phillip D. Blaskovich, Rachit Ohri, Richard Huang, Rupal Ayer, Stephen H. Wu, William H. Nau, JR.

Принадлежит: COVIDIEN LP

An ablation system includes a source of electrosurgical energy, a source of coolant fluid, and an ablation electrode assembly operatively connected to the source of electrosurgical energy and fluidly-coupled to the source of coolant fluid. The ablation electrode assembly includes a hub defining a chamber therein and one or more electrically-conductive ablation needles extending from the hub. The ablation system also includes one or more delivery needles extending from the hub. The one or more delivery needles are selectively moveable from a first position, wherein the distal end of the delivery needle is disposed proximal to the distal end portion of the ablation needle, to at least a second position, wherein at least the distal end of the delivery needle is disposed distally beyond the distal end portion of the ablation needle.

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Номер записи: 39

05-12-2013 дата публикации

Surgical instrument with orientation sensing

Номер: US20130324999A1

Автор: Ashvani K. Madan, Cory G. Kimball, Daniel W. Price, Danius P. Silkaitis, Donna L. Korvick, Foster B. Stulen, Jacqueline C. Aronhalt, Jeffrey D. Messerly, John B. Schulte, Michael R. Lamping, Sora Rhee, Stephen J. Balek, Timothy G. Dietz, William D. Dannaher, William E. Clem

Принадлежит: Ethicon Endo Surgery Inc

A surgical instrument comprises a body assembly and an end effector. The body assembly includes a control module, an orientation sensor communicatively coupled to the control module, and an energy component. The energy component is operable to activate the end effector at a plurality of energy settings. A storage device is communicatively coupled to the control module and includes a plurality of gesture profiles and corresponding energy settings. The control module is configured to set the energy setting of the energy component to a corresponding energy setting in response to a correlation between the output of the orientation sensor and a gesture profile. In some versions, the control module modifies the energy setting based upon output from a force sensor that measures the force on the end effector. The control module may also decrease the energy setting in response to an anomalous acceleration or deceleration detected by an accelerometer.

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Номер записи: 40

19-12-2013 дата публикации

Treatment system and actuation method of treatment system

Номер: US20130338659A1

Автор: Kazue Tanaka, Sadayoshi Takami, Takashi Irisawa, Yoshitaka Honda

Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP

A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.

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Номер записи: 41

19-12-2013 дата публикации

Rf sealing instrument

Номер: US20130338660A1

Автор: Christoph Rothweiler, Patrick Heizmann

Принадлежит: Aesculap AG

A bipolar RF sealing instrument includes two instrument branches which are movable relative to one another at least to an open and a closed position, and an instrument handle with two handle units, each associated with a respective instrument branch and coupled for manually operating the instrument branches and for applying to the instrument branches a predetermined closing force at the closed position, a first of the two instrument branches having a terminal for an external RF generator and the second instrument branch adapted to be electrically coupled via an instrument-internal power contact with the first instrument branch. The power contact may be a spring contact for contact closure at a closure position. In addition or alternatively, an instrument-internal control switch is present and only activated when the predetermined closing force is reached, to enable the supply of electric current from an external RF generator to the instrument branch(es).

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Номер записи: 42

26-12-2013 дата публикации

Microwave thermometry for microwave ablation systems

Номер: US20130345692A1

Автор: Joseph D. Brannan

Принадлежит: COVIDIEN LP

A microwave ablation system incorporates a microwave thermometer that couples to a microwave transmission network connecting a microwave generator to a microwave applicator to measure noise temperature. The noise temperature is processed to separate out components the noise temperature including the noise temperature of the tissue being treated and the noise temperature of the microwave transmission network. The noise temperature may be measured by a radiometer while the microwave generator is generating the microwave signal or during a period when the microwave signal is turned off. The microwave ablation system may be configured as a modular system having one or more thermometry network modules that are connectable between a microwave applicator and a microwave generator. Alternatively, the modular system includes a microwave generator, a microwave applicator, and a microwave cable that incorporate a microwave thermometry network module.

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Номер записи: 43

02-01-2014 дата публикации

Real time assessment of ablation from electrocardiogram signals

Номер: US20140005664A1

Автор: Assaf Govari, Athanassios Papaioannou

Принадлежит: Biosense Webster Israel Ltd

An apparatus includes an intra-body probe and a processor. The intra-body probe includes an electrode, which is configured to contact tissue in a heart. The processor is configured to receive an electrical signal from the electrode, to distinguish a local component, due to the tissue with which the electrode is in contact, in the electrical signal from a remote-field contribution to the signal, and to control a therapeutic procedure applied to the tissue responsively to the distinguished local component.

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Номер записи: 44

16-01-2014 дата публикации

Devices and Systems for Carotid Body Ablation

Номер: US20140018788A1

Автор: Charles Lennox, Howard Levin, Kenneth M. Martin, Marat FUDIM, Mark Gelfand, Mark Leung, Martin M. GRASSE, Marwan Abboud, Michael Brick MARKHAM, Miriam H. Taimisto, Robert Brommer, Scott H. West, Zoar Jacob ENGELMAN

Принадлежит: Cibiem Inc

Methods and endovascular catheters for assessing, and treating patients having sympathetically mediated disease, involving augmented peripheral chemoreflex and heightened sympathetic tone by reducing chemosensor input to the nervous system via transmural carotid body ablation.

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Номер записи: 45

27-02-2014 дата публикации

Vessel sealing system

Номер: US20140058381A1

Автор: James H. Orszulak, Robert H. Wham, Steven P. Buysse

Принадлежит: Covidien AG

An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid, and an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.

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Номер записи: 46

27-02-2014 дата публикации

Thermal feedback systems and methods of using the same

Номер: US20140058384A1

Автор: Brandon Gay, Casey M. Ladtkow, Steven P. Buysse

Принадлежит: COVIDIEN LP

A system for providing feedback during an electrosurgical procedure on a target tissue is provided. The system includes an electrosurgical energy source; an electrode probe assembly connected to the electrosurgical energy source, wherein the electrode probe assembly includes at least one electrode assembly having a needle configured to deliver electrosurgical energy to the target tissue; at least one thermal feedback assembly connected to the electrosurgical energy source, wherein each thermal feedback assembly includes at least one temperature sensor assembly; and a hub configured to selectively support the electrode probe assembly and each thermal feedback assembly such that the needle of the electrode probe assembly and each temperature sensor assembly of each thermal feedback assembly are proximate one another when disposed proximate the target tissue.

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Номер записи: 47

06-03-2014 дата публикации

Cool rf electrode

Номер: US20140066917A1

Автор: Eric R. Cosman, Jr., Eric R. Cosman, SR.

Принадлежит: Chenes LLC

Systems and methods for ablating tissue in the living body can include a cool electrode.

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Номер записи: 48

13-03-2014 дата публикации

Methods and systems for controlled deployment of needle structures in tissue

Номер: US20140073910A1

Автор: Brian Placek, Cameron D. Hinman, Darrin Uecker, David J. Danitz, David Toub, Harry Kwan, Michael A. Munrow

Принадлежит: Gynesonics Inc

A system for deploying needles in tissue includes a controller and a visual display. A treatment probe has both a needle and tines deployable from the needle which may be advanced into the tissue. The treatment probe also has adjustable stops which control the deployed positions of both the needle and the tines. The adjustable stops are coupled to the controller so that the virtual treatment and safety boundaries resulting from the treatment can be presented on the visual display prior to actual deployment of the system.

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Номер записи: 49

13-03-2014 дата публикации

Method for Reducing the Absorption of Nutrients Through the Gastrointestinal Tract

Номер: US20140074077A1

Автор: Sanford Lane

Принадлежит: GASTRO-SHAPE TECHNOLOGIES Inc

The present invention features methods for applying a force, such as laser or radiofrequency (RF) energy to the wall of the small intestine, which targets and eliminates a portion of the capillary and vascular network responsible for the transportation of nutrients to the patient. This causes the patient to absorb a reduced percentage of nutrients, which results in a reduced caloric intake. Various types and shapes of applicators are used to deliver the treatment energy, and these applicator devices are within the scope of the present invention. The applicator can be deployed through either a body cavity (e.g., the oral cavity), an open surgical procedure, or a minimally invasive incision or incisions.

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Номер записи: 50

06-01-2022 дата публикации

Electrosurgical unit and system

Номер: US20220000552A1

Автор: David HUBELBANK, Jesse Smith, John Gearheart, Vini Podany

Принадлежит: MEDTRONIC ADVANCED ENERGY LLC

Systems, such as an electrosurgical unit, and method for use with an active electrode and a plurality of return electrodes are disclosure. An electrosurgical treatment is provided to tissue via the active electrode at a treatment site and a first return electrode of the plurality of return electrodes at the treatment site. An impedance measurement is received or determined of an impedance in the tissue between the active electrode at the treatment site and a second return electrode of the plurality of return electrodes at a site remote from the treatment site.

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Номер записи: 51

07-01-2016 дата публикации

SYSTEM AND APPARATUS FOR AUTOMATIC ACTIVATION USING RADIO FREQUENCY SENSOR

Номер: US20160000494A1

Автор: Cosmescu Ioan

Принадлежит:

A system and apparatus for automatic smoke evacuation using an RF sensor. The system and apparatus utilizes an RF sensor for automatic activation of an evacuator that evacuates smoke and/or debris during the use of any electrosurgical instrument or surgical instrument that is capable of generating smoke and/or debris and capable of producing a radiofrequency during its operation. Exemplary embodiments of the system and apparatus for automatic smoke evacuation include both wired and wireless embodiments. 1. A system for automatic smoke evacuation comprising:a surgical instrument capable of producing a radiofrequency during its operation;a smoke evacuation unit capable of evacuating at least one of smoke and debris through a smoke evacuation channel; anda radiofrequency sensor connected to the smoke evacuation unit that is capable of sending a signal to the smoke evacuation unit where said radiofrequency sensor has at least two transistors in sequence.2. The automatic smoke evacuation system of wherein the radiofrequency sensor includes an octocoupler in sequence with at least one of said at least two transistors.3. The automatic smoke evacuation system of wherein the radiofrequency sensor includes a relay that is activated by the octocoupler and a switch that is operated by the relay where the switch is capable of sending a signal to the smoke evacuation unit.4. The automatic smoke evacuation unit of wherein said at least two transistors are separated by at least one resistor.5. The automatic smoke evacuation unit of wherein the surgical instrument capable of producing a radiofrequency during its operation comprises at least one of an electrosurgery pencil claim 1 , an electrosurgery blade claim 1 , a harmonic scalpel claim 1 , a tissue sealer claim 1 , an electrosurgical forceps claim 1 , an electrosurgical tip claim 1 , and an ultrasonic device.6. A system for automatic smoke evacuation comprising:a surgical instrument capable of producing a radiofrequency during ...

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Номер записи: 52

03-01-2019 дата публикации

SURGICAL DEVICES HAVING POWER-ASSISTED JAW CLOSURE AND METHODS FOR COMPRESSING AND SENSING TISSUE

Номер: US20190000495A1

Автор: Bingham Scott R., Boudreaux Chad P., Corbett Catherine A., Draginoff, Hibner John A., Johnson Eric N., JR. Carl J., Strobl Geoffrey S.

Принадлежит:

Surgical devices are provided having power-assisted or fully powered jaw closure. The devices herein generally include a handle portion, an elongate shaft, and an effector having first and second jaws configured to engage tissue. A motor and one or more compression springs can be operatively coupled, and activation of the motor can compress the spring(s) to reduce the amount of user supplied force to compress tissue between the jaws. In some embodiments, the devices can be configured to regulate an amount of compression applied by the jaws prior to, during, and/or after cutting of the tissue to promote hemostasis. For example, the devices can include sensors, processors, and/or other components that analyze data indicative of tissue type and tissue load. Based on this feedback, the device can automatically adjust the amount of compression or energy applied to the tissue to seal the tissue. 1. A surgical instrument , comprising:a jaw assembly having a first jaw and a second jaw pivotally coupled together, the first and second jaws having opposed tissue contacting surfaces configured to pivot towards each other to compress tissue therebetween when a force applied to at least one of the first and second jaws meets or exceeds a threshold force;a cutting member having a distal portion thereof disposed between the opposed tissue contacting surfaces of the first and second jaws, the distal portion including a cutting edge that extends between and substantially perpendicular to the first and second jaws; anda housing having a motor and a first spring disposed therein, the motor being operatively coupled to the first spring such that the motor is configured to move the first spring from a first position to a second, compressed position to increase a force the jaws apply to the tissue, and the motor further being operatively coupled to the cutting member such that the motor is configured to drive the cutting member distally through the first and second jaws.2. The device of ...

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Номер записи: 53

07-01-2021 дата публикации

CORDLESS SURGICAL DEVICE AND CONTROL METHOD

Номер: US20210000530A1

Автор: Kawasaki Minoru

Принадлежит: OLYMPUS CORPORATION

A cordless surgical device includes a battery and a memory that stores data in which, with each of a plurality of energy output modes in which living tissue is treated by applying energy to the living tissue, a minimum power necessary to execute the energy output mode is associated, and a processor. The processor monitors a remaining power in the battery, selects an energy output mode in which the minimum power is less than the remaining power in the battery from among the energy output modes, and executes the selected energy output mode. The energy output modes include a normal output mode and an urgent output mode between which types of energy applied to the living tissue are the same. The minimum power corresponding to the normal output mode is higher than the minimum power corresponding to the urgent output mode. 1. A cordless surgical device comprising:a battery;a memory configured to store data including a value of a minimum power necessary to execute each of a plurality of energy output modes in which living tissue is treated by respectively applying a different type of energy to the living tissue; and monitor a remaining power in the battery;', 'select one energy output mode of the plurality of energy output modes based on the stored values of minimum power in which the minimum power is smaller than the remaining power in the battery;', 'execute the selected energy output mode of the plurality of energy output modes, each energy output mode includes a normal output mode and an urgent output mode that each apply the same type of energy to the living tissue, the minimum power corresponding to the normal output mode being higher than the minimum power corresponding to the urgent output mode;', 'determine, based on the stored data, whether the remaining power in the battery is less than the minimum power corresponding to the normal output mode when the normal output mode is executed;', 'preferentially select, as the energy output mode in which the minimum power ...

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Номер записи: 54

07-01-2021 дата публикации

Medical device for use in bodily lumens, for example an atrium

Номер: US20210000537A1

Автор: Daniel Gelbart, Douglas Wayne GOERTZEN, Fernando Luis De Souza Lopes

Принадлежит: Kardium Inc

A device positionable in a cavity of a bodily organ (e.g., a heart) may discriminate between fluid (e.g., blood) and non-fluid tissue (e.g., wall of heart) to provide information or a mapping indicative of a position and/or orientation of the device in the cavity. Discrimination may be based on flow, or some other characteristic, for example electrical permittivity or force. The device may selectively ablate portions of the non-fluid tissue based on the information or mapping. The device may detect characteristics (e.g., electrical potentials) indicative of whether ablation was successful. The device may include a plurality of transducers, intravascularly guided in an unexpanded configuration and positioned proximate the non-fluid tissue in an expanded configuration. Expansion mechanism may include helical member(s) or inflatable member(s).

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Номер записи: 55

03-01-2019 дата публикации

MICROWAVE ABLATION GENERATOR CONTROL SYSTEM

Номер: US20190000547A1

Автор: Brannan Joseph D., Glazier Joshua C., Rick Kyle R., Weiss Manoja

Принадлежит:

A microwave energy delivery and measurement system, including a microwave generator and a microwave energy delivery device, for performing medical procedures, and a remote power coupler system for measuring one or more parameters of the microwave energy signal including a remote RF sensor housed in the microwave energy delivery device and a power coupler processer coupled with the processing unit of the microwave energy delivery device. 1. (canceled)2. A radio frequency sensor coupleable to a microwave antenna , the radio frequency sensor comprising: a first coaxial cable including a first pair of slots; and', 'a second coaxial cable including a second pair of slots, wherein the first coaxial cable and the second coaxial cable are in contact with each other such that the first pair of slots and the second pair of slots are aligned;, 'a directional coupler includinga first mixer configured to receive a forward power measurement signal from the directional coupler;a second mixer configured to receive a reverse power measurement signal from the directional coupler; anda remote sensing interface coupled to the first mixer and the second mixer, the remote sensing interface configured to transmit at least one of the forward power measurement signal or the reverse power measurement signal to a microwave generator.3. The radio frequency sensor according to claim 2 , wherein the remote sensing interface includes at least one conductor configured to couple a microwave energy delivery device to a microwave generator.4. The radio frequency sensor according to claim 2 , wherein the remote sensing interface includes a wireless transceiver configured to transmit at least one of the forward power measurement signal or the reverse power measurement signal to a microwave generator.5. The radio frequency sensor according to claim 2 , further comprising an oscillator configured to generate a carrier signal at a carrier signal frequency.6. The radio frequency sensor according to claim 5 ...

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Номер записи: 56

02-01-2020 дата публикации

ELECTRIC POWER SOURCE DEVICE, HIGH-FREQUENCY TREATMENT SYSTEM, AND ACTUATING METHOD OF ELECTRIC POWER SOURCE

Номер: US20200000507A1

Автор: HAREYAMA Norihiko, Hayashida Tsuyoshi, HONDA Yoshitaka, KAWASHIMA Ko, MATSUKI Kenji

Принадлежит: OLYMPUS CORPORATION

A processor of an electric power source device exercises control over a power output before a control switching time point based on a value related to initial impedance, and determines the control switching time point upon detecting that a value related to impedance of a living tissue is at a minimum. The processor sets a set electric-power value of the power output based on a parameter related to controlling the power output before the control switching time point, and performs constant-electric-power control by controlling the power output using the electric-power value at and after the control switching time point. 1. An electric power source device configured to control a power output to a treatment instrument that treats living tissue with a high-frequency current , the electric power source device comprising: detect a value related to an initial impedance of the living tissue;', 'determine a control switching time point upon determining that a value related to the impedance of the living tissue is a minimum value;', 'control the power output to the treatment instrument for a period of time until reaching the control switching time point based on the detected value related to the initial impedance;', 'set a set electric-power value of the power output based on a parameter related to the control over the output before the control switching time point;', 'perform constant-electric-power control by controlling the power output to the treatment instrument based on the set electric-power value starting at the control switching time point; and', 'in response to performing the constant-electric-power control, where a voltage value of the power output becomes equal to or greater than a set voltage value that is set based on at least one of (i) the initial impedance, (ii) an output voltage value at the control switching time point, and (iii) an output time before the control switching time point, perform a constant-voltage control by controlling the power output based ...

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Номер записи: 57

02-01-2020 дата публикации

Adjustable clamp systems and methods

Номер: US20200000511A1

Автор: Ara Stephanian, Dwight P. Morejohn, Michael J. Banchieri, Tamer Ibrahim

Принадлежит: Atricure Inc

Tissue treatment systems include an actuator handle assembly coupled with a clamp assembly having a first jaw mechanism and a second jaw mechanism. A first jaw mechanism includes a first flexible boot, a first flexible ablation member coupled with the first flexible boot, and a first rotatable jawbone disposed within the first flexible boot. A second jaw mechanism comprises a second flexible boot, a second flexible ablation member coupled with the second flexible boot, and a second rotatable jawbone disposed within the second flexible boot.

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Номер записи: 58

02-01-2020 дата публикации

Vaginal remodeling device and methods

Номер: US20200000517A1

Автор: Chun-Chih Cheng, Ian F. Smith, Jerome Jackson, Jonathan B. Parmer, Patrick Karl Howe, Sean Yasuo Sullivan, Sheree Leigh LUCAS, Stanley Levy, Steven Marc Lopez

Принадлежит: Viveve Inc

This invention relates generally to apparatus and methods for tightening tissue of the female genitalia by heating targeted connective tissue with radiant energy, while cooling the mucosal epithelial surface over the target tissue to protect it from the heat. Embodiments include a handle and treatment tip that has both an energy delivery element and a cooling mechanism. The handle may be a two-handed handle allowing control even while rotating and maneuvering the treatment around the genital opening. The apparatus or system may also include an integrated controller, which may confirm tissue contact without applying RF energy, based only on the temperature of the applicator and the time since the last application of energy from the applicator.

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Номер записи: 59

04-01-2018 дата публикации

METHODS AND DEVICES TO TREAT NASAL AIRWAYS

Номер: US20180000535A1

Автор: Frazier Andrew, Wolf Scott J.

Принадлежит: AERIN MEDICAL, INC.

Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and/or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and/or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways. 1. A method of treating a patient's airway , the method comprising:advancing a non-expandable, elongate treatment element of a treatment device through a nostril and into the patient's airway, wherein the elongate treatment element includes a tissue-contact surface having a shape;contacting a pair of bipolar, radiofrequency electrodes protruding from the tissue-contact surface with tissue in the airway;applying force against the tissue with the shape of the tissue-contact surface to at least temporarily deform the tissue to a desired shape;delivering radiofrequency energy between the electrodes, to at least one of reshape, remodel, strengthen or change a property of the tissue; andremoving the treatment element from the airway.2. A method as in claim 1 , further comprising forming an incision in mucosal tissue of the patient's airway claim 1 , wherein the tissue to which the radiofrequency energy is delivered comprises submucosal tissue.3. A method as in claim 2 , wherein the incision is formed using a cutting member on the treatment device.4. A method as in claim 2 , wherein the submucosal tissue includes tissue selected from the group consisting of upper lateral cartilage claim 2 , lower lateral cartilage claim 2 , nasal septum within the nasal valve claim 2 , nasal septum outside of the nasal valve claim 2 , swell bodies located on a nasal septum claim 2 , a septal turbinate claim 2 , a high deviated nasal septum claim 2 , a nasal scroll claim 2 , a floor of the nasal cavity claim 2 , a piriform area claim 2 , and swell bodies on a floor of the nasal cavity.5. A method as in claim 1 , ...

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Номер записи: 60

04-01-2018 дата публикации

MEDICAL DC CURRENT GENERATOR AND BIPOLAR MEDICAL IMPLANT FRAGMENTATION DEVICE EQUIPPED THEREWITH

Номер: US20180000538A1

Автор: Gottwald Thomas, Ho Chi-Nghia, Schostek Sebastian, Schurr Marc

Принадлежит:

The present invention is directed to an endoscopic implant cutting and/or fragmenting apparatus of the bipolar type, operating on direct current, comprising an endoscope instrument having at least two opposing electrodes at its distal instrument head forming a cutting gap inbetween for receiving an electrically conductive implant or implant section to generate punctiform physical contact with the implant, and a DC-impulse generator having or connected to a control device adapted to generate a direct current in a pulsed way being controlled by the control device such that in a first phase of physical contact, the current pulse is adjusted preferably by controlling the current value at the electrodes to induce electric energy into the implant material being sufficient to melt the implant material exclusively in the area of the contact portion and in a second phase of physical noncontact, the current pulse is adjusted preferably by controlling the voltage value at the electrodes to generate an electric arc between at least one electrode and the melted implant material being sufficient to cut the melted implant material. 1. A medical DC-impulse generator of a medical/surgical bipolar fragmentation device , operating on direct electric current , and adapted to fragment medical implants that are made of an electrically conductive material , comprisingan electric current source and an electric current control device with the DC-impulse generator being adapted to be connected to a medical endoscopic instrument having at least two electrodes at its distal end portion, which are adapted to physically contact the medical implant, and to apply a direct electric current of predetermined or adjustable strength in a pulsed or timed way to the electrodes, such that the electric current flows from one electrode to the other electrode via the implant material and thereby applies electrical energy onto the implant material for cutting said material in a cutting process,{'sub': 0', '1 ...

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Номер записи: 61

04-01-2018 дата публикации

RADIOFREQUENCY TREATMENT PROBE FOR TREATING VAGINAL LAXITY AND ASSOCIATED SYSTEMS AND METHODS

Номер: US20180001103A9

Автор: "OBRIEN Kevin D.", Alinsod Red, HERCHMAN, JR. Paul R.

Принадлежит:

The present invention is related to a radiofrequency treatment probe and method delivering radiofrequency for controlled heating of tissue within the vagina for the treatment of vaginal laxity. The treatment probe may include a curved, rounded disposable treatment tip that may be designed to accommodate vaginal anatomy. An electrode assembly may be coupled to the treatment tip, wherein the electrode coupled to the treatment tip may be configured to transfer radiofrequency energy through vaginal skin surface to the tissue. A temperature measuring feature may include or be coupled to the electrode assembly, wherein the electrode assembly may be configured to regulate and maintain a pre-determined skin temperature. A radiofrequency handle may be configured to connect to a disposable treatment tip. A connector may be configured to connect to the radiofrequency handle to a radiofrequency generator. A protective apparatus may be configured to protect the radiofrequency handle. 1. A treatment probe comprising:a. a curved, rounded treatment tip designed to accommodate vaginal anatomy;b. an electrode assembly coupled to the treatment tip, wherein the electrode coupled to the treatment tip is configured to transfer radiofrequency energy to specific vaginal structures;c. a temperature measuring feature coupled to the electrode assembly, wherein the temperature measuring feature coupled to the electrode assembly is configured to monitor and regulate electrode and skin temperature;d. a connector configured to connect the treatment tip to a radiofrequency generator.2. The treatment probe according to further comprising a protective apparatus configured to protect the treatment tip.3. The treatment probe according to wherein the treatment tip is connected to the radiofrequency generator by a radiofrequency handle claim 1 , and wherein the radiofrequency handle is configured to be reusable.4. The treatment probe according to wherein the electrode assembly comprises:a. a conductive ...

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Номер записи: 62

11-01-2018 дата публикации

ASCERTAINING TISSUE THICKNESS

Номер: US20180008229A1

Автор: Altmann Andres, Govari Assaf, Volkinshtein Dmitry

Принадлежит:

Embodiments described herein include apparatus that includes an electrical interface and a processor. The processor is configured to receive, via the electrical interface, a first signal that indicates a time-varying force that was applied to a portion of tissue, and one or more second signals that are derived from ultrasound reflections received from the portion of tissue. The processor is further configured to learn, from the first signal and the second signals, a dependency of a thickness of the portion of tissue on the force applied to the portion of tissue. Other embodiments are also described. 1. Apparatus , comprising:an electrical interface; and [ a first signal that indicates a time-varying force that was applied to a portion of tissue, and', 'one or more second signals that are derived from ultrasound reflections received from the portion of tissue, and, 'to receive, via the electrical interface, 'to learn, from the first signal and the second signals, a dependency of a thickness of the portion of tissue on the force applied to the portion of tissue., 'a processor, configured2. The apparatus according to claim 1 , wherein the processor is further configured to generate claim 1 , based on the learned dependency claim 1 , an output indicating at least one recommended parameter for an ablation of the portion of tissue performed at a particular contact force.3. The apparatus according to claim 2 , wherein the processor is configured to generate the output by:based on the learned dependency, estimating a thickness of the portion of tissue that would result from the particular contact force being applied to the portion of tissue during the ablation of the portion of tissue, andin response to the estimated thickness, generating the output.4. The apparatus according to claim 2 , wherein the recommended parameter includes a power of an ablating signal.5. The apparatus according to claim 2 , wherein the recommended parameter includes a duration of an ablating signal ...

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Номер записи: 63

14-01-2021 дата публикации

Ablation system, clamp and method of use

Номер: US20210007794A1

Автор: Keith Edward Martin, Salvatore Privitera

Принадлежит: Atricure Inc

A method and apparatus for ablating tissue are disclosed that comprise positioning two or more bi-directional ablation energy sources in spaced-apart relation in sufficient proximity to the tissue to be ablated so that, upon activation each energy source creates an energy field in the tissue to be ablated. The energy sources are spaced such that the energy fields created by at least one of the activated sources partially overlaps with the energy field created by one or more of the other energy sources. The energy sources are alternately activated and deactivated, so that a substantially constant energy field results where the energy fields created by at least two of the energy sources overlap. While the energy sources are preferably RF energy sources, other energy sources, such as microwave, may be used.

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Номер записи: 64

11-01-2018 дата публикации

SYSTEMS AND METHODS FOR TREATING TISSUE WITH RADIOFREQUENCY ENERGY

Номер: US20180008336A1

Автор: GREEN Ronald L., Radziunas Jeffrey, Shikhman Oleg

Принадлежит: Mederi Therapeutics, Inc.

A device for applying radiofrequency energy for sphincter treatment comprising a flexible outer tube, an expandable basket having a plurality of arms movable from a collapsed position to an expanded position, and a plurality of electrodes movable with respect to the arms from a retracted position to an extended position. An advancer is slidably disposed within the outer tube to move the plurality of electrodes to the extended position. An actuator moves the advancer from a first position to a second position to advance the plurality of electrodes. An aspiration tube extends within the outer tube. An assembly includes an aspiration disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion and a second position to disable aspiration. 116-. (canceled)17. A method of treating gastrointestinal reflux disease comprising:providing a treatment device having a plurality of electrodes and an assembly having a disabler for disabling aspiration through an aspiration tube extending within the device, the disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion of the aspiration tube, the disabler movable to a second position to disable aspiration to facilitate axial and rotational movement of the treatment device within tissue and to limit undesired movement of tissue which can cause overtreatment of tissue and tissue ablation;applying radiofrequency energy to the plurality of electrodes to thermally treat tissue below a tissue ablation threshold and create a plurality of tissue lesions along axially spaced tissue levels within the upper gastrointestinal tract;monitoring tissue temperature throughout the applying of radiofrequency energy; andregulating power ensuring in response to the monitoring of tissue temperature that the tissue temperature does not exceed a predetermined value which would cause tissue ablation and/or tissue necrosis.18. The method ...

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Номер записи: 65

11-01-2018 дата публикации

SYSTEM AND METHOD FOR DISPLAYING AN ACTIVE HEATING ZONE DURING AN ABLATION PROCEDURE

Номер: US20180008341A1

Автор: Brannan Joseph D.

Принадлежит:

A method of generating a representation of an active heating zone on a display in real time during an ablation procedure includes processing imaging data of a surgical site generated by an imaging device, navigating an ablation device in proximity to target tissue, delivering electrosurgical energy to the target tissue via the ablation device to generate an active heating zone, detecting a Doppler shift in the imaging data based on the delivery of electrosurgical energy to the target tissue, and generating a representation of the active heating zone relative to the surgical site based on the detected Doppler shift. 1. A method of generating a representation of an active heating zone on a display in real time during an ablation procedure , the method comprising:processing imaging data of a surgical site generated by an imaging device;navigating an ablation device in proximity to target tissue within the surgical site;delivering electrosurgical energy to the target tissue via the ablation device to generate an active heating zone;detecting a Doppler shift in the imaging data based on the delivery of electrosurgical energy to the target tissue; andgenerating a representation of the active heating zone relative to the surgical site based on the detected Doppler shift.2. The method according to claim 1 , wherein the representation of the active heating zone is a graphical representation of the active heating zone generated on a display by a processing unit coupled to the display and configured to process the imaging data generated by the imaging device.3. The method according to claim 1 , wherein generating the representation of the active heating zone includes indicating a clinical outcome prediction zone based on active heating intensity.4. The method according to claim 1 , further comprising verifying a position of the ablation device within the surgical site based on the representation of the active heating zone.5. The method according to claim 4 , further comprising ...

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Номер записи: 66

11-01-2018 дата публикации

MAGNETIC NAVIGATION SYSTEMS AND METHODS

Номер: US20180008342A1

Автор: Ibrahim Tamer, Swanson David K.

Принадлежит:

Systems and methods for forming a lesion on an endocardial tissue of a patients heart involve placing an ablation assembly inside of the heart and adjacent to the endocardial tissue, and placing a guiding assembly outside of the heart. An ablation assembly includes an ablation element and a first attraction element, and a guiding assembly includes a second attraction element. First and second attraction elements can be attracted via magnetism. Techniques involve forming an ablation on the cardiac tissue of a patient's heart with an ablation element of the ablation assembly. Optionally, techniques may include moving the second attraction element of the guiding assembly relative to the patient's heart, so as to effect a corresponding movement of the ablation element of the ablation assembly. 1placing an ablation assembly inside of the heart and adjacent to the endocardial tissue, the ablation assembly comprising an ablation element, a support structure, and a first attraction element;placing a guiding assembly outside of the heart, the guiding assembly comprising a second attraction element, such that a magnetic attraction is present between the first and second attraction elements, and the support structure of the ablation assembly forms a space between the ablation element and the endocardial tissue; andforming the lesion on the endocardial tissue of the patient's heart with the ablation element of the ablation assembly while the support structure isolates the ablation element from blood flowing in the patient's heart.. A method of forming a lesion on an endocardial tissue of a patients heart, comprising: This application is a continuation of U.S. application Ser. No. 131862,996 filed Apr. 15, 2013, which is a continuation of U.S. patent application Ser. No. 12/781,072 filed May 17, 2010 (now U.S. Pat. No. 8,430,875 issued Apr. 30, 2013) entitled “MAGNETIC NAVIGATION SYSTEMS AND METHODS,” which is a nonprovisional application of, and claims the benefit of the filing ...

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Номер записи: 67

11-01-2018 дата публикации

BIPOLAR BELT SYSTEMS AND METHODS

Номер: US20180008344A1

Автор: Ibrahim Tamer, Swanson David K.

Принадлежит: AtriCure, Inc.

Bipolar belt ablation systems and methods for treating patient tissue involve the use of an ablation an ablation apparatus with a plurality of ablation elements carried by a flexible tube structure, a radiofrequency generator capable of delivering a plurality of differing radio frequency power signals to the ablation elements of the ablation device, wires transmitting the radiofrequency power signals from the radiofrequency generator to the ablation elements, and a control mechanism to enable temperature-based power control to each of the powered ablation elements. 1. A radiofrequency ablation system for treating tissue comprising:an ablation apparatus with a plurality of ablation elements carried by a flexible tube structure;a radiofrequency generator capable of delivering a plurality of differing radio frequency power signals to the ablation elements of the ablation device;wires transmitting the radiofrequency power signals from the radiofrequency generator to the ablation elements; anda control mechanism to enable temperature-based power control to each of the powered ablation elements.2. A radiofrequency ablation apparatus as in claim 1 , wherein the plurality of power signals include the output of the radio frequency generator and the return path of the generator.3. A radiofrequency ablation apparatus as in claim 1 , wherein the plurality of power signals include at least two separate outputs of the radio frequency generator.4. A radiofrequency ablation apparatus as in claim 3 , wherein the at least two separate outputs of the radio frequency generator have the same frequency but differ in at least one of amplitude or phase from other power outputs.5. A radiofrequency ablation apparatus as in claim 3 , wherein the at least two separate outputs of the radio frequency generator have different frequencies.6. A radiofrequency ablation apparatus as in claim 1 , wherein the electrode pads placed on the skin provide a return path to the generator.7. A radio frequency ...

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Номер записи: 68

11-01-2018 дата публикации

SYSTEM AND METHOD FOR MONITORING TISSUE TEMPERATURE

Номер: US20180008346A1

Автор: Williams David Nicholas

Принадлежит:

A method and system for monitoring tissue temperature during microwave ablation of such tissue is disclosed. The method includes applying a predetermined correction value to a temperature measurement to provide a corrected temperature value. 1. A method of monitoring tissue temperature during microwave ablation of such tissue , the method comprising:providing a power source operable to provide a controlled microwave energy output;providing a microwave probe having a body and an antenna extending through the body and operable to deliver microwave energy from the power source out of the microwave probe;providing a thermocouple on the body of the microwave probe, the thermocouple being separated from the body by a layer of thermally insulating material, the thermocouple being operable to generate an output voltage in dependence upon a temperature experienced by the thermocouple;supplying a controlled microwave energy output from the power source to the antenna, thereby causing microwave energy to radiate from the antenna to form an ablation zone;detecting an output voltage generated by the thermocouple in response to a temperature experienced by the thermocouple;determining a temperature value relating to the detected output voltage; andapplying a predetermined correction value to the determined temperature value, so as to provide a corrected temperature value.2. A method as claimed in claim 1 , wherein the predetermined correction value relates to the location of the thermocouple on the body of the microwave probe.3. A method as claimed in claim 1 , wherein the predetermined correction value relates to time of application of the microwave energy.4. A method as claimed in claim 1 , wherein the predetermined correction value relates to a temperature of a coolant fluid used inside the body of the microwave probe.5. A method as claimed in claim 1 , wherein the corrected temperature value is a predetermined multiple of the determined temperature value.6. A method as ...

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Номер записи: 69

10-01-2019 дата публикации

TREATMENT SYSTEM, AND TREATMENT METHOD FOR LIVING TISSUE USING ENERGY

Номер: US20190008573A1

Автор: Kimura Kenichi, TAKASHINO Tomoyuki

Принадлежит:

A treatment system includes a pair of holding members, a high-frequency energy output section, a heat generating section and a control section. At least one of the pair of holding members moves to the other holding member. The high-frequency energy output section and the heat generating section are provided on at least one of the holding members. The high-frequency energy output section exerts high-frequency energy to a living tissue to denature the living tissue, and collects the biological information of the living tissue. The heat generating section applies heat to it held between the holding members, generates the heat owing to the supply of the energy, and conducts the heat therefrom to denature the living tissue. The control section controls the output of the energy to the high-frequency energy output section and the heat generating section based on the biological information collected by the high-frequency energy output section. 1. A surgical controller for controlling an electrosurgical apparatus , the surgical controller comprising:a circuit configured to detect an impedance of a tissue between a pair of holding members disposed at the electrosurgical apparatus and to output an impedance value indicative of the impedance; and controlling a first generator to apply a first electric power to a first energy element that is provided on each of the holding members and is configured to apply a first energy to the tissue, the first energy generating Joule heat in the tissue to heat the tissue;', 'receiving the impedance value from the circuit;', 'when the impedance value reaches a first threshold value, controlling a second generator to set a second electric power to be applied to a second energy element to a value higher than before reaching the first threshold value, the second energy element being configured to apply a second energy to the tissue, the second energy coagulating the tissue from a surface side of the tissue contacting a grasping face of the ...

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Номер записи: 70

10-01-2019 дата публикации

Low Power Tissue Sealing Device and Method

Номер: US20190008576A1

Автор: Helfer Joel, Kennedy Jenifer, Ross David, Schechter David, Schmaltz Dale

Принадлежит:

An electrosurgical instrument has a power supply operatively coupled to an end effector. The end effector has a pair of jaws for effectuating an action on tissue positioned therebetween. The power supply is configured to input a first signal and a second signal to a buck-boost converter. The buck-boost converter is configured to transmit an output to an H-bridge circuit. The H-bridge circuit is configured to pass a signal to a resonant LC transformer circuit. The power supply is configured to transmit a power signal. The pair of jaws are operatively coupled to the power supply to receive the power signal, the power having no more than 80 Volts RMS, and less than 2 Amps RMS. The power is configured to seal the tissue positioned between the pair of jaws in 3 seconds or less. 1. An electrosurgical instrument , comprising:a power supply operatively coupled to an end effector,the end effector having a pair of jaws for effectuating an action on tissue positioned therebetween,the power supply configured to input a first signal and a second signal to a buck-boost converter, the buck-boost converter configured to transmit an output to an H-bridge circuit, the H-bridge circuit configured to pass a signal to a resonant LC transformer circuit, the power supply configured to transmit a power signal; andthe pair of jaws operatively coupled to the power supply to receive the power signal, the power having no more than 80 Volts RMS, and less than 2 Amps RMS, the power configured to seal the tissue positioned between the pair of jaws in 3 seconds or less.2. The instrument of claim 1 , wherein:the pair of jaws are configured to compress the tissue to a thickness of 0.005 inches or less.3. The instrument of claim 1 , wherein:the resonant LC transformer circuit comprises includes a capacitor, an inductor, and a transformer, wherein the transformer is a 1:9 transformer.4. The instrument of claim 1 , wherein:the power has 1.5 Amps or less.5. The instrument of claim 1 , wherein:the pair ...

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Номер записи: 71

10-01-2019 дата публикации

Electrosurgical Pericaridial Puncture

Номер: US20190008588A1

Автор: Davies Gareth

Принадлежит:

Devices and methods for providing access to the pericardial cavity while reducing risk of myocardial damage. One method includes using an apparatus to apply pressure to a parietal pericardium, retracting the apparatus, and puncturing the parietal pericardium by delivering electrical energy using a puncture device. Another method includes moving a portion of parietal pericardium away from a surface of myocardium of the heart and puncturing the parietal pericardium by delivering electrical energy using a puncture device. The methods may include a step of confirming that the puncture device is at least partially within the parietal cavity by injecting or aspirating fluid through a lumen in the puncture device or measuring the pressure or electrical impedance at the distal end of the puncture device. 121.-. (canceled)22. A method of accessing a pericardial cavity of a heart comprising:a. using an apparatus to apply pressure to a parietal pericardium;b. retracting the apparatus; andc. puncturing the parietal pericardium by delivering electrical energy using a puncture device.23. The method of claim 22 , further comprising the step of advancing the puncture device through the apparatus.24. The method of claim 22 , further comprising a step of confirming that the puncture device is at least partially within the pericardial cavity.25. The method of claim 24 , wherein the step of confirming that the puncture device is at least partially within the pericardial cavity comprises injecting a contrast fluid into the pericardial cavity through a lumen of the puncture device.26. The method of claim 24 , wherein the step of confirming that the puncture device is at least partially within the pericardial cavity comprises aspirating fluid from the pericardial cavity through a lumen of the puncture device.27. The method of claim 24 , wherein the step of confirming that the puncture device is at least partially within the pericardial cavity comprises measuring electrical impedance at a ...

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Номер записи: 72

09-01-2020 дата публикации

System and Method for Adjusting Available Power Per Probe During an Ablation Procedure

Номер: US20200008867A1

Автор: Jennifer J. BARRETT, Lee RHEIN, Lisa M. MCGREGOR, Tyler W. CRONE

Принадлежит: Avent Inc

An ablation system for treating tissue in a patient's body includes an energy source, one or more probes connected to the energy source, and a controller communicatively coupled to one or more probes. Each of the probes includes an elongate member having a distal region with an electrically non-conductive outer circumferential portion and a proximal region. The probes further include an electrically conductive energy delivery device extending distally from the electrically non-conductive outer circumferential portion. The controller includes one or more processors and one or more memory devices. The one or more memory devices are configured to store computer-readable instructions that when executed by the one or more processors cause the one or more processors to perform operations. More specifically, the operations include detecting a number of probes connected to the energy source and allocating a portion of the predetermined power supply to each of the probes based on the number of probes detected.

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Номер записи: 73

18-01-2018 дата публикации

PAIRED DEVICE AND GENERATOR CODES

Номер: US20180014872A1

Автор: Dickerson Benjamin D.

Принадлежит:

A medical device energy source may comprise an energy supply, a power interface, a computing device, a networking interface, and a data interface. The power interface and the data interface may communicate with a medical device and the networking interface may communicate with a data server. The energy source may receive an identifier code from the medical device and receive medical device identity codes from the data server. The energy source may receive additional medical device information from the data server. The energy source may compare the identifier code with each of the identity codes and control the function of the energy supply based on the comparison of the identifier code with the identity codes. The energy source may also maintain usage records of the medical device. A medical device system may include the medical device energy source, the medical device, and the data server. 1. A medical device energy source , comprising:an energy source;an energy source power interface configured to deliver electrical energy from the energy source; and an energy source processor unit;', 'an energy source memory storage component in operative communication with the energy source processor unit;', 'an energy source network communication interface in operative communication with the energy source processor unit; and', 'an energy source data interface in operative communication with the energy source processor unit,, 'an energy source computing device, comprisingwherein the energy source computing device is configured to control a function of the energy source, and receive an identifier code via the energy source data interface;', 'receive a plurality of medical device identity codes via the energy source network communication interface;', 'compare the identifier code with each of the plurality of medical device identity codes; and', 'control the function of the energy source based on the comparison of the identifier code with each of the plurality of medical device ...

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Номер записи: 74

16-01-2020 дата публикации

System and Method for Independent or Simultaneous Control of Multiple Radiofrequency Probes During an Ablation Procedure

Номер: US20200015879A1

Автор: Christopher W. THURROTT, Joseph A. Cesa, Lee RHEIN, Lisa M. MCGREGOR, Morgan RUDOLPH, Scott WOODRUFF, Tyler W. CRONE

Принадлежит: Avent Inc

A system and method for delivering energy to a patient's body includes a plurality of probes each having an elongate member with a distal region having an electrically non-conductive outer circumferential portion and a proximal region. Each of the plurality of probes further includes an electrically conductive energy delivery device extending distally from the electrically non-conductive outer circumferential portion for delivering one of electrical and radiofrequency energy to the patient's body. The energy delivery devices further include an electrically conductive outer circumferential surface. The system also includes at least one controller communicatively coupled to each of the plurality of probes. The controller includes a user interface having a control screen. The control screen includes an independent control module and a simultaneous control module that allows a user to select between independent control or simultaneous control of the plurality of probes.

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Номер записи: 75

21-01-2021 дата публикации

HIGH-FREQUENCY GENERATOR, CONTROL UNIT, METHOD FOR OPERATING A HIGH-FREQUENCY GENERATOR

Номер: US20210015539A1

Автор: DIJKSTRA Jelle

Принадлежит: OLYMPUS WINTER & IBE GMBH

A high-frequency generator connects an electrosurgical instrument, including an electrical output connection point for an electrosurgical instrument, a power supply, which is at least indirectly connected to the output connection point, and a power controller for controlling the electrical output power output via the output connection point. The power controller is designed to begin the output of an electrical output power when an output energy balance amount is greater than an output energy limit value and to end the output of the electrical output power when the output energy balance amount falls below a minimum value. 1. A high-frequency generator for connecting an electrosurgical instrument , comprisingan electrical output connection point for an electrosurgical instrument,a power supply, which is at least indirectly connected to the output connection point,a power controller for controlling the electrical output power output via the output connection point, wherein the power controller is configuredto begin the output of an electrical output power when an output energy balance amount is greater than an output energy limit value andto end the output of the electrical output power when the output energy balance amount falls below a minimum value,the output energy balance amount being determined over a moving determination duration from a supplied specified generator power and the output electrical output power.2. The high-frequency generator according to claim 1 , wherein the specified generator power is adjustable.3. The high-frequency generator according to claim 1 , wherein the output energy balance amount does not exceed a maximum output energy balance amount.4. The high-frequency generator according to claim 1 , wherein the maximum output energy balance amount is determined from the difference between a permissible energy amount and a specified energy amount claim 1 , wherein the permissible energy amount is the maximum energy amount that may be output ...

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Номер записи: 76

28-01-2016 дата публикации

Surgical cutter operated with direct current

Номер: US20160022356A1

Автор: Chi-Nghia Ho, Marc O. Schurr, Michael Melbert, Sebastian Schostek, Thomas GOTTWALD

Принадлежит: Ovesco Endoscopy AG

A surgical implant-cutting instrument of the bipolar type, operated with direct current, is disclosed, with an instrument head which is located at the distal end of an instrument shank and which is provided for minimally invasive insertion of the instrument into a patient's body, wherein at least two mutually opposing instrument branches, preferably of the linear type, are arranged on the instrument head and between them define a cutting gap for receiving an electrically conductive implant or implant section between them. According to the invention electrodes are formed on the mutually facing longitudinal sides of the branches or these are each equipped with at least one electrode, which electrodes are in turn shaped at their mutually facing longitudinal sides to form a cutting edge in order to effect a quasi linear or punctiform physical contact engagement with the electrically conductive implant or implant section for an electrical short circuit of the mutually opposing electrodes.

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Номер записи: 77

24-01-2019 дата публикации

DEVICES AND METHODS FOR OPTICAL DETECTION OF TISSUE CONTACT

Номер: US20190021780A1

Автор: Brannan Joseph D.

Принадлежит:

An electrosurgical system includes an energy applicator adapted to direct energy to tissue, an electrosurgical power generating source, and a surface-contact detection device. The surface-contact detection device is operably associated with the energy applicator. The surface-contact detection device is communicatively-coupled to the electrosurgical power generating source. The surface-contact detection device includes at least one optical transmitter to generate optical signals, a lens member configured to reflect optical signals generated by the optical transmitter when the lens member is disposed in contact with tissue, and at least one optical receiver to receive optical signals reflected by the lens member. The electrosurgical power generating source is adapted to transmit energy to the energy applicator when it is determined that the lens member is disposed in contact with tissue. 118-. (canceled)19. A method of delivering electrosurgical energy to tissue , comprising:positioning an antenna assembly having a waveguide for delivery of energy to tissue, the waveguide having a plurality of dielectric layers disposed coaxially with a longitudinal axis defined by the waveguide;generating a signal from a surface-contact detection device;determining a position of the antenna assembly based on a response to the generated signal; anddelivering energy to tissue via the waveguide based on the determined position of the antenna assembly.20. The method according to claim 19 , wherein the plurality of dielectric layers are disposed within a cavity defined by an electrically conductive surface.21. The method according to claim 19 , wherein generating the signal includes generating an optical signal from the surface-contact detection device.22. The method according to claim 19 , wherein generating the signal includes generating an optical signal from the surface-contact detection device and the response to the signal is a reflection of the signal.23. The method according to ...

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Номер записи: 78

24-01-2019 дата публикации

Surgical instrument with user adaptable algorithms

Номер: US20190021783A1

Автор: Benjamin D. Dickerson, Benjamin M. Boyd, Charles J. Scheib, Craig N. Faller, II William B. Weisenburgh, Jacob S. Gee, John A. Hibner, Paul F. Riestenberg, Rafael J. Ruiz Ortiz, Ryan M. Asher, Thomas C. Gallmeyer

Принадлежит: Ethicon LLC

Various forms are directed to systems and methods for dissection and coagulation of tissue. A surgical instrument includes an end effector configured to dissect and seal tissue at a distal end thereof, and a selector switch having a plurality of surgical modes. A generator is electrically coupled to the surgical instrument and is configured to deliver energy to the end effector. Each surgical mode of the selector switch corresponds to an algorithm for controlling the power delivered from the generator to the end effector, and each algorithm corresponding to the plurality of surgical modes is configured to allow a user to control the power output level of the generator.

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Номер записи: 79

24-01-2019 дата публикации

SYSTEM AND METHOD FOR CONTROLLING DELIVERY OF ABLATION ENERGY TO TISSUE

Номер: US20190021790A1

Автор: Olson Eric Steven

Принадлежит:

A system for controlling delivery of ablation energy by an ablation catheter to tissue in a body is provided. The system includes an electronic control unit configured to determine, responsive to a measurement signal from the ablation catheter, a value for a characteristic associated with the delivery of ablation energy to the tissue. In one embodiment, the characteristic is the degree of contact between the ablation catheter and the tissue. The unit is further configured to generate a control signal, responsive to the determined value of the characteristic, to control an amount of energy delivered from an ablation delivery element on the ablation catheter to the tissue. The amount of energy varies in response to the determined value of the characteristic when the determined value of the characteristic meets a predetermined condition relative to a threshold value for the characteristic. 120.-. (canceled)21. A method for controlling delivery of energy to an electrode , comprising:delivering an amount of energy to the electrode;receiving, with a processor, a measurement signal indicative of an amount of particulates in a bloodstream of a patient in which the electrode has been inserted; andvarying the amount of energy based on the measurement signal.22. The method of claim 21 , wherein the measurement signal includes a signal indicative of blood flow velocity in a blood vessel of the patient.23. The method of claim 22 , wherein the measurement signal indicative of blood flow velocity in the blood vessel of the patient is generated from an image of a brain of the patient.22. The method of claim 21 , wherein the method includes implementing a closed-loop feedback method for varying the amount of energy.23. The method of claim 21 , further comprising generating a control signal from the measurement signal.24. The method of claim 23 , further comprising providing the control signal to a generator claim 23 , the control signal being configured to cause the generator to ...

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Номер записи: 80

24-01-2019 дата публикации

Dermatological treatment device

Номер: US20190021794A1

Автор: Guirec LE LOUS, Michel Lamoise

Принадлежит: URGO RECHERCHE INNOVATION ET DEVELOPPEMENT

The invention relates to a dermatological treatment device ( 1 ) including a laser head ( 2 ) capable of shooting a laser beam ( 3 ) towards a target region ( 4 ) of the skin ( 5 ) of a patient, a pyrometer ( 6 ) capable of measuring the temperature (T) of the skin ( 5 ) in said target region ( 4 ), a timer ( 7 ) capable of measuring the duration (D) of the laser shot, and a control means ( 8 ) capable of selectively activating or deactivating a laser shot, the control means ( 8 ) being configured to deactivate the laser shot when the duration (D) of the shot reaches a duration threshold in seconds (Sd) as determined by a linear function in the form Sd=(To−T)/C, where T is the measured temperature (T) of the skin, To is a target temperature, and C is an average heating coefficient of the skin.

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Номер записи: 81

22-01-2015 дата публикации

SELECTIVE DELIVERY OF CRYOGENIC ENERGY TO INTERVERTEBRAL DISC TISSUE AND RELATED METHODS OF INTRADISCAL HYPOTHERMIA THERAPY

Номер: US20150025514A1

Автор: Carl Allen

Принадлежит:

The present invention relates to devices and methods for altering the tissue in and around an intervertebral disc through localized hypothermia therapy to restore function of the disc and reduce pain. Hypothermia therapy is defined as the reduction of tissue temperature to below that of the equilibrium temperature. Target therapeutic temperatures and times are varied according to the desired treatment effect. Intended effects of hypothermia of the intervertebral disc include cellular disruption leading to cell death and or structural and chemical denaturation within the anulus fibrosus, nucleus pulposus, or nerve fibers, temporary or permanent deadening of the nerves within or surrounding the disc, induction of a healing response, angiogenesis, or accelerated degeneration and/or drying of the nucleus pulposus and/or anulus fibrosus, Various effects can be achievW by reaching different temperatures for differing periods of time or by the proximity of the hypothermia therapy device to the treatment target. Accordingly, it is an object of one or more the embodiments of the invention to provide hypothermic therapy to selected locations within an intervertebral disc utilizing a flexible and guidable ciyogenic device. 1forming a hole within the anatomical structure;inserting a cryoprobe into said anatomical structure, wherein said cryoprobe comprises a distal tip and a cryogenic energy transmissive region located proximate to said distal tip;activating said cryogenic energy transmissive region; anddelivering cryogenic energy for one or more time periods, wherein at least one of the quantity and directionality of said cryogenic energy may be regulated.. A method for delivering cryogenic energy to an anatomical structure, the method comprising: This patent application is a continuation-in-part of pending prior U.S. patent application Ser. No. 13/601,234, filed Aug. 31, 2012 by Allen Carl for SELECTIVE DELIVERY OF CRYOGENIC ENERGY TO INTERVERTEBRAL DISC TISSUE AND RELATED ...

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Номер записи: 82

23-01-2020 дата публикации

TEMPERATURE-CONTROLLED PULSED RF ABLATION

Номер: US20200022747A1

Автор: Attias Gili, Govari Assaf, Zilberman Israel

Принадлежит:

Described embodiments include a system that includes a radiofrequency-current (RF-current) generator and a processor. The processor is configured to cause the RF-current generator to generate a plurality of pulses of RF current for application to tissue of a subject, each of the pulses having a power whose maximum value is greater than 80 W and a duration that is less than 10 s, and an intermission between successive ones of the pulses being less than 10 s. The processor is further configured to, while each one of the pulses is applied to the tissue, receive at least one signal that indicates a measured temperature of the tissue, and, in response to the measured temperature, control the power of the pulse. Other embodiments are also described. 1. A system , comprising:a radiofrequency-current (RF-current) generator;an electrode operatively connected to the RF-current generator; and cause the RF-current generator to generate a plurality of pulses of RF current for application to tissue of a subject, each of the pulses having a power with a maximum value greater than 80 W and a duration less than 10 s, and an intermission between successive pulses being less than 10 s, and', 'while each one of the pulses is applied to the tissue, receive at least one signal from a temperature measuring device operatively connected to the processor, that indicates a measured temperature of the tissue, and, in response to the measured temperature, control the power of the pulse., 'a processor, configured to2. The system according to claim 1 , wherein the processor is configured to drive the RF-current generator to apply fewer than seven pulses.3. The system according to claim 1 , wherein the intermission is between 2 and 5 s.4. The system according to claim 1 , wherein the duration of each pulse is between 2 and 5 s.5. The system according to claim 1 , wherein the processor is configured to drive the RF-current generator to apply each one of the pulses such that the power of the pulse ...

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Номер записи: 83

01-02-2018 дата публикации

CRYOGENIC BALLOON DEVICE WITH ELECTROPORATION TREATMENT REGION

Номер: US20180028252A1

Автор: LALONDE Jean-Pierre

Принадлежит:

An intravascular ablation device, including a flexible elongate body; an expandable element positioned on the elongate body; a radiofrequency or electroporation treatment segment located distally of the expandable element; a cryogenic coolant source in fluid communication with an interior of the expandable element; and a radiofrequency or electroporation energy source in communication with the radiofrequency or electroporation treatment segment. 1. A method of treating tissue , the method comprising: an elongate catheter body having a proximal portion and a distal portion;', 'an expandable first treatment region coupled to the distal portion of the elongate catheter body; and', 'a second treatment region coupled to the distal portion of the catheter body at a location that is distal to the cryogenic treatment region and defines an outer surface and a distal tip of the medical device;, 'positining a medical device proximate a first tissue area, the medical device includingactivating the expandable first treatment region to create a first treatment pattern in the first tissue area;deactivating the expandable first treatment region;repositioning the medical device such that the second treatment region is proximate a second tissue area; andactivating the second treatment region to treat a second treatment pattern in the second tissue area, the second treatment pattern being different than the first treatment pattern.2. The method of claim 1 , wherein the second treatment region is at least one of a radiofrequency treatment region and an electroporation treatment region.3. The method of claim 1 , wherein the second treatment region includes at least one electrode.4. The method of claim 3 , wherein the second treatment region is an electroporation treatment region.5. The method of claim 4 , further comprising a power source in communication with the at least one electrode and being configured to transmit electrical pulses claim 4 , activation of the second treatment ...

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Номер записи: 84

01-02-2018 дата публикации

Devices, Systems and Methods for Evaluation and Feedback of Neuromodulation Treatment

Номер: US20180028256A1

Автор: Andrew Wu, David Herzfeld, Denise Zarins, Mark S. Leung, Paul Friedrichs, Robert J. Beetel, Sowmya Ballakur

Принадлежит: Medtronic Ardian Luxembourg SARL

The present disclosure relates to devices, systems and methods for evaluating the success of a treatment applied to tissue in a patient, such as a radio frequency ablative treatment used to neuromodulate nerves associated with the renal artery. A system monitors parameters or values generated during the course of a treatment. Feedback provided to an operator is based on the monitored values and relates to an assessment of the likelihood that a completed treatment was technically successful. In other embodiments, parameters or values generated during the course of an incomplete treatment (such as due to high temperature or high impedance conditions) may be evaluated to provide additional instructions or feedback to an operator.

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Номер записи: 85

10-02-2022 дата публикации

Endoscopic system with pump control

Номер: US20220046165A1

Автор: Michael C. Holmstrom

Принадлежит: Individual

Endoscopic image analysis, endoscopic procedure analysis, and/or component control systems, methods and techniques are disclosed that can analyze images of an endoscopic system and/or affect an endoscopic system to enhance operation, user and patient experience, and usability of image data and other case data.

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Номер записи: 86

01-02-2018 дата публикации

Stereo-thermo-lesioning to treat a patient's neurological condition

Номер: US20180028807A1

Автор: Andre G. Machado, Imad Najm, John T. Gale, Jorge A. GONZALEZ-MARTINEZ

Принадлежит: CLEVELAND CLINIC FOUNDATION

This disclosure relates to using stereo-thermo-lesioning (STL) to create lesions at one or more locations in the patient's nervous system at the patient's bedside without general anesthesia. A method that uses STL to treat a patient's neurological condition includes: using a plurality of stereotactically-implanted thermo-coupled multi-contact electrodes to record conduction data within a predetermined theoretical zone of activity within the patient's neurological tissue; detecting abnormal neurological activity of a neurological condition within the conduction data and localize a portion of the predetermined theoretical zone of activity that is responsible for a primary organization of the abnormal neurological activity; creating a lesion at the portion of the predetermined theoretical zone of activity that is responsible for a primary organization of the abnormal neurological activity using at least one contact of the plurality of thermo-coupled multi-contact electrodes.

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Номер записи: 87

17-02-2022 дата публикации

Esophageal Probes and Methods

Номер: US20220047284A1

Автор: Mehdi Razavi, Robert Paisley

Принадлежит: Baylor College of Medicine, TEXAS HEART INSTITUTE

Methods for collapsing a tubular organ, such as the esophagus, involve inserting a device into the tubular organ, at least partially sealing off a section of the tubular organ, and drawing in the wall of the tubular organ by application of suction. The devices may be used to move the wall of the tubular organ away from an area undergoing treatment or therapy, such as to minimize damage to the tubular organ by application of radiofrequency energy or to limit temperature increase of the tubular organ.

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Номер записи: 88

17-02-2022 дата публикации

Systems and methods for treating tissue with pulsed field ablation

Номер: US20220047319A1

Автор: Gerald Floyd Cummings, Shane Fredrick Miller-Tait

Принадлежит: Kardium Inc

Pulsed field ablation systems are disclosed, some of which may include an output pulse generation circuit and a high voltage pulse generation circuit electrically connected to the output pulse generation circuit. The high voltage pulse generation circuit may be configured to deliver a high voltage pulse set to the output pulse generation circuit. The output pulse generation circuit may be configured to generate an output pulse set at least in response to the high voltage pulse set. The output pulse set may be deliverable to a set of selectable electrodes and may be configured to cause pulsed field ablation of tissue. Each pulse in the output pulse set may have a rise time that is shorter than a rise time of at least one high voltage pulse in the high voltage pulse set.

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Номер записи: 89

31-01-2019 дата публикации

SYSTEMS AND METHODS FOR SELECTING, ACTIVATING, OR SELECTING AND ACTIVATING TRANSDUCERS

Номер: US20190029608A1

Автор: Moisa Saar, WEBER Michael Hermann

Принадлежит:

A graphical representation may be displayed including at least a plurality of transducer graphical elements, each transducer graphical element of the plurality of transducer graphical elements representative of a respective transducer of a plurality of transducers of a transducer-based device. A set of user input may be received including an instruction set to reposition a first transducer graphical element in a state in which the first transducer graphical element is located at a first location in the graphical representation and a second transducer graphical element is located at a second location in the graphical representation, the second location closer to a predetermined location in the graphical representation than the first location. In response to conclusion of receipt of the set of user input, the first transducer graphical element may be repositioned from the first location in the graphical representation to the predetermined location in the graphical representation. 1. A medical device system comprising:a data processing device system;an input-output device system communicatively connected to the data processing device system; anda memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system, the program comprising:communication instructions configured to cause the data processing device system to communicate, via the input-output device system, with an electrode-based device system comprising a structure and a plurality of electrodes arrangeable in a three dimensional distribution on the structure, the structure and the plurality of electrodes locatable within a bodily cavity;first display instructions configured to cause the input-output device system to display information regarding at least the electrode-based device system, the displayed information including a graphical representation of at least a portion of the electrode-based device system, the graphical ...

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Номер записи: 90

31-01-2019 дата публикации

SYSTEMS AND METHODS FOR SELECTING, ACTIVATING, OR SELECTING AND ACTIVATING TRANSDUCERS

Номер: US20190029609A1

Автор: Moisa Saar, WEBER Michael Hermann

Принадлежит:

A graphical representation may be displayed including at least a plurality of transducer graphical elements, each transducer graphical element of the plurality of transducer graphical elements representative of a respective transducer of a plurality of transducers of a transducer-based device. A set of user input may be received including an instruction set to reposition a first transducer graphical element in a state in which the first transducer graphical element is located at a first location in the graphical representation and a second transducer graphical element is located at a second location in the graphical representation, the second location closer to a predetermined location in the graphical representation than the first location. In response to conclusion of receipt of the set of user input, the first transducer graphical element may be repositioned from the first location in the graphical representation to the predetermined location in the graphical representation. 1. A medical device system comprising:a data processing device system;an input-output device system communicatively connected to the data processing device system; anda memory device system communicatively connected to the data processing device system and storing a program executable by the data processing device system, the program comprising:communication instructions configured to cause the data processing device system to communicate, via the input-output device system, with an electrode-based device system comprising a structure and a plurality of electrodes arrangeable in a three dimensional distribution on the structure, the structure and the plurality of electrodes locatable within a bodily cavity, and the structure including a first domed portion and a part other than the first domed portion;first display instructions configured to cause the input-output device system to display information regarding at least the electrode-based device system, the displayed information including a ...

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Номер записи: 91

31-01-2019 дата публикации

Single action tissue sealer

Номер: US20190029747A1

Автор: David M. Garrison, Paul Hermes, Sean T. Dycus

Принадлежит: Covidien AG

An endoscopic bipolar forceps includes a housing and a shaft, the shaft having an end effector assembly at its distal end. The end effector assembly includes two jaw members for grasping tissue therebetween. The jaw members are adapted to connect to an electrosurgical energy source which enable them to conduct energy through the tissue to create a tissue seal. A drive assembly is disposed within the housing which moves the jaw members. A switch is disposed within the housing which activates the electrosurgical energy. A knife assembly is included which is advanceable to cut tissue held between the jaw members. A movable handle is connected to the housing. Continual actuation of the movable handle engages the drive assembly to move the jaw members, engages the switch to activate the electrosurgical energy source to seal the tissue, and advances the knife assembly the cut the tissue disposed between the jaw members.

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Номер записи: 92

31-01-2019 дата публикации

ELECTRODE ASSEMBLY WITH THERMAL SHUNT MEMBER

Номер: US20190029752A1

Автор: Koblish Josef Vincent, Panescu Dorin, Schultheis Eric Andrew

Принадлежит:

According to some embodiments, a medical instrument (for example, an ablation device) comprises an elongate body having a proximal end and a distal end, an energy delivery member positioned at the distal end of the elongate body, a first plurality of temperature-measurement devices carried by or positioned within the energy delivery member, the first plurality of temperature-measurement devices being thermally insulated from the energy delivery member, and a second plurality of temperature-measurement devices positioned proximal to a proximal end of the energy delivery member, the second plurality of temperature-measurement devices being thermally insulated from the energy delivery member. 1. (canceled)2. An electrode assembly for an ablation catheter with thermal shunting , the electrode assembly comprising:a proximal electrode portion;a distal electrode portion;a filtering element electrically coupling the proximal electrode portion to the distal electrode portion and configured to present a low impedance at a frequency used for delivering ablative energy via the proximal and distal electrode portions; andat least one thermal shunt member in thermal communication with the proximal electrode portion and the distal electrode portion to selectively remove heat from at least one of the electrode assembly and tissue being treated by the electrode assembly when the electrode assembly is activated;wherein the at least one thermal shunt member extends at least partially through an interior of the electrode assembly to transfer heat from the electrode assembly during use;wherein the at least one thermal shunt member is configured to receive at least one fluid conduit extending at least partially through an interior of the at least one thermal shunt member, wherein the at least one thermal shunt member is in thermal communication with the at least one fluid conduit; andwherein the at least one fluid conduit is configured to place the electrode assembly in fluid ...

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Номер записи: 93

31-01-2019 дата публикации

METHODS OF REMOVING HEAT FROM AN ELECTRODE USING THERMAL SHUNTING

Номер: US20190029753A1

Автор: Koblish Josef Vincent, Panescu Dorin, Schultheis Eric Andrew

Принадлежит:

According to some embodiments, a medical instrument (for example, an ablation device) comprises an elongate body having a proximal end and a distal end, an energy delivery member positioned at the distal end of the elongate body, a first plurality of temperature-measurement devices carried by or positioned within the energy delivery member, the first plurality of temperature-measurement devices being thermally insulated from the energy delivery member, and a second plurality of temperature-measurement devices positioned proximal to a proximal end of the energy delivery member, the second plurality of temperature-measurement devices being thermally insulated from the energy delivery member. 1. (canceled)2. A method of heat removal from an electrode assembly during a tissue treatment procedure , the method comprising:delivering energy to an electrode assembly of an ablation system, the ablation system comprising a catheter comprising a distal end, the electrode assembly positioned along the distal end of the catheter;wherein the catheter of the ablation system comprises at least one thermal shunt member along its distal end,wherein the at least one thermal shunt member extends at least partially through an interior of the electrode assembly; andwherein the catheter further comprises at least one fluid passage extending at least partially through the interior of the electrode assembly and an interior of the at least one thermal shunt member;delivering a fluid through the at least one fluid passage; andtransferring heat from the electrode assembly to the fluid via the at least one thermal shunt member to reduce the likelihood of localized hot spots along the distal end of the catheter.3. The method of claim 2 ,{'sup': '2', 'wherein the at least one thermal shunt member is configured to transfer heat while not retaining heat, and wherein the at least one thermal shunt member comprises a thermal diffusivity greater than 1.5 cm/sec;'}wherein the electrode assembly ...

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Номер записи: 94

31-01-2019 дата публикации

Expandable elements for delivery of electric fields

Номер: US20190030328A1

Автор: Brian T. HOWARD, Mark T. Stewart

Принадлежит: MEDTRONIC INC

A method, system, and device for electroporation. A system may include a medical device with a plurality of electrodes borne on an expandable element and an energy generator in communication with the electrodes. The energy generator may have processing circuitry configured to selectively deliver electroporation energy to at least one of the electrodes. The processing circuitry may determine whether an alert condition is present and, if so, cease the delivery of electroporation energy to one or more electrodes identified as the cause of the alert condition and/or prevent the delivery of electroporation energy to the one or more electrodes identified as the cause of the alert condition. The energy generator may also be configured to deliver electroporation energy in a sequence of a plurality of energy delivery patterns to enhance lesion formation.

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Номер записи: 95

30-01-2020 дата публикации

Systems and methods for activating transducers

Номер: US20200030019A1

Автор: Daniel M. Reinders, Daniel R. Weinkam

Принадлежит: Kardium Inc

In some embodiments, a plurality of transducers of a transducer-based device may be selected for activation. A first pair of subsets of the selected transducers may be identified for initial activation, each subset of the first pair being activated with a different phase angle range than the other. No transducer in one subset is sufficiently close to a transducer in the other subset to cause a confluence of ablated tissue regions therebetween. The first pair of subsets may be activated simultaneously or concurrently. Upon activation or a conclusion thereof of the pair of subsets of the selected transducers, one or more subsequent pairs of subsets of the selected transducers may be activated iteratively on a pair-by-pair basis, until all of the selected transducers have achieved desired activation results, according to some embodiments. Each subsequent pair may include the same or similar characteristics as the first pair.

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Номер записи: 96

30-01-2020 дата публикации

Methods and systems for advanced harmonic energy

Номер: US20200030021A1

Автор: Amy M. Krumm, David C. Yates, Mark A. Davison

Принадлежит: Ethicon LLC

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 to 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.”

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Номер записи: 97

09-02-2017 дата публикации

METHOD AND SYSTEM FOR COMPENSATING FOR EXTERNAL IMPEDANCE OF ENERGY CARRYING COMPONENT WHEN CONTROLLING ELECTROSURGICAL GENERATOR

Номер: US20170035489A1

Автор: BEHNKE ROBERT, WHAM Robert H.

Принадлежит:

A control system for use with an electrosurgical generator which delivers electrosurgical energy to tissue has a control module. The module includes a processor executing an algorithm. The algorithm has the steps of determining a sensed voltage value corresponding to a sensed voltage signal output by the electrosurgical generator and determining a sensed current value corresponding to a sensed current signal output by the electrosurgical generator. The algorithm has the steps of determining phase information corresponding to a phase shift between the voltage signal and the current signal and determining a characteristic related to the electrosurgical energy delivered to the tissue using the phase information, the sensed voltage value and the sensed current value. 113-. (canceled)14. An electrosurgical generator comprising:a control system including: determining at least one of a sensed voltage value corresponding to a sensed voltage signal output by the electrosurgical generator;', 'determining a sensed current value corresponding to a sensed current signal output by the electrosurgical generator;', 'determining a phase shift value corresponding to a phase shift between the voltage and current signals;', 'determining at least one characteristic related to the electrosurgical energy delivered to the patient using the phase shift value and at least one of the sensed voltage value and the sensed current value; and', 'modulating the electrosurgical energy based in part on the at least one characteristic., 'a control module including at least one processor, said at least one processor executing an algorithm comprising the steps of15. The electrosurgical generator according to claim 14 , wherein the algorithm further comprises the step of:determining impedance information corresponding to impedance of at least one energy-carrying component;using the impedance information in the determining step to determine at least one of voltage, current and power.16. The ...

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Номер записи: 98

09-02-2017 дата публикации

Laser therapeutic device

Номер: US20170035511A1

Автор: Keiichiro Yamada, Seiji Nakamura, Yoshiyuki Itoh

Принадлежит: ASUKA MEDICAL Inc, Nagoya University NUC

A laser therapeutic device for a laser endoscope capable of relatively reducing the diameter of the endoscope while being capable of emitting a laser beam of a uniform intensity over a wide area is provided. An optical guide element (a square-shaped rod lens 15 , a guide tube 2 b ) having a quadrangular cross section and guiding a therapeutic laser beam emitted from the tip of an optical fiber toward the tip side of a probe is used. On the tip side of a probe tube 2 being a barrel, using clearances C 1 to C 4 formed between the optical guide element and the inner circumferential surface of the probe tube, a camera unit 11 as imaging means and white-color LED units 12 and an ultraviolet LED unit 13 as illumination means are arranged.

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Номер записи: 99

08-02-2018 дата публикации

CONTROLLING IMPEDANCE RISE IN ELECTROSURGICAL MEDICAL DEVICES

Номер: US20180036061A1

Автор: Davison Mark A., Messerly Jeffrey D., Yates David C.

Принадлежит:

Various embodiments are directed to electrosurgical systems for providing an electrosurgical signal to a patient. A control circuit may, for a first application period, apply the electrosurgical signal to first and second electrodes according to a first mode. In the first mode, the control circuit may limit the electrosurgical signal to a first maximum power when the impedance between the first and second electrodes exceeds a first mode threshold. The control circuit may also, for a second application period after the first application period, apply the electrosurgical signal according to a second mode. In the second mode, the control circuit may limit the electrosurgical signal to a second mode maximum power when the impedance between the first and second electrodes exceeds a second mode threshold. The second maximum power may be greater than the first maximum power. 110-. (canceled)11. A method for providing an electrosurgical signal to a patient using an electrosurgical system , the method comprising:for a first application period, applying the electrosurgical signal to first and second electrodes of the electrosurgical system according to a first mode, wherein in the first mode, the electrosurgical signal is limited to a first maximum power when the impedance between the first and second electrodes exceeds a first mode threshold; andfor a second application period after the first application period, applying the electrosurgical signal according to a second mode, wherein in the second mode, the electrosurgical signal is limited to a second mode maximum power when the impedance between the first and second electrodes exceeds a second mode threshold, wherein the second maximum power is greater than the first maximum power.12. The method of claim 11 , wherein the first mode threshold is less than the second mode threshold.13. The method of claim 11 , further comprising:for a third application period after the second application period, applying the electrosurgical ...

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Номер записи: 100