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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2403. Отображено 100.
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: 1
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: 2
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: 3
30-08-2012 дата публикации

System and Method for Detecting and Suppressing Arc Formation During an Electrosurgical Procedure

Номер: US20120220997A1
Автор: Mark A. Johnston
Принадлежит: TYCO HEALTHCARE GROUP LP

A method for suppressing arc formation during an electrosurgical tissue treatment procedure includes the steps of supplying pulsed current from an energy source to tissue and measuring the pulsed current supplied from the energy source. The method also includes the steps of comparing an instantaneous measured pulse to a predetermined threshold and controlling the pulsed current supplied from the energy source based on the comparison between the instantaneous measured pulse and the predetermined threshold.

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Номер записи: 4
20-09-2012 дата публикации

Temperature Based Ablation Completeness Algorithm

Номер: US20120239030A1
Автор: Casey M. Ladtkow
Принадлежит: Vivant Medical LLC

A system and method for determining completion of an ablation procedure is provided. An electrosurgical generator provides an electrosurgical energy source to an electrode probe assembly. The generator is connected to a thermal feedback assembly that includes at least one temperature sensor assembly. The generator includes a computer configured to (1) measure a time of energy delivered to the target tissue, (2) receive a temperature reading from the thermal feedback assembly, (3) estimate a size of an ablation volume based on the temperature reading, a distance between the electrode probe assembly and each temperature sensor assembly, and the measured time, (4) calculate a growth rate of the ablation volume based on the estimated size. The computer may also determine the ablation procedure is complete when the growth rate is less than or equal to a threshold.

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Номер записи: 5
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: 6
14-03-2013 дата публикации

High-frequency operation apparatus and operation apparatus

Номер: US20130066238A1
Автор: Sadayoshi Takami, Takashi Irisawa
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP

A high-frequency operation apparatus includes a grasping portion for grasping a treatment target living tissue, an electrode for supplying a high-frequency current to the living tissue, a high-frequency current supplying section that generates the high-frequency current necessary for treatment, a cable section that transmits the high-frequency current, an impedance measuring section for measuring an impedance value of the living tissue, a detecting section that detects that the impedance value reaches an impedance threshold at a time when moisture in the living tissue starts to evaporate, a measuring section that measures an output time of the high-frequency current after the detection, a storing section that stores a set time, and an output control section that performs control for stopping an output when the output time of the high-frequency current reaches the stored set time.

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Номер записи: 7
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: 8
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: 9
27-06-2013 дата публикации

Methods and apparatuses for remodeling tissue of or adjacent to a body passage

Номер: US20130165926A1
Автор: Dolores PEREZ, Prabodh Mathur, Rabih Nassif, Shahram Moaddeb
Принадлежит: Vessix Vascular Inc

Medical devices and methods for making and using the same are disclosed. An example medical device may include a catheter shaft. An expandable member may be coupled to the catheter shaft. A plurality of flexible electrode assemblies may be coupled to the expandable member. A control unit may be coupled to the electrode assemblies. The control unit may be configured to energize the electrode assemblies for approximately 10 seconds to less than approximately 1 minute.

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Номер записи: 10
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: 11
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: 12
07-01-2021 дата публикации

DEVICES, SYSTEMS, AND METHODS FOR CRYOGENIC BIOPSY SAMPLING

Номер: US20210000521A1
Автор: Dong Jing, Ferrokhi Hamid, Otuya David, Tearney Guillermo J., Verma Yogesh
Принадлежит:

In some embodiments, devices, systems, and methods for cryogenic biopsy sampling are provided. In some embodiments, a device for cryogenic biopsy sampling is provided, the device including: a dual lumen tube; an elongated probe tip coupled to the distal end of the dual lumen tube, with a first lumen extending into a hollow portion in the tip and a second lumen in fluid communication with the hollow portion; a first port in fluid communication with the first lumen; a second port in fluid communication with the second lumen, wherein the first lumen, the elongated probe element, and the second lumen provide a closed pathway through which a substance introduced through the first port can flow through the first lumen into the elongated probe element, and out of the elongated probe element through the second lumen to the second port. 1. A device for cryogenic biopsy sampling , comprising:a dual lumen tube having a proximal end and a distal end; a first lumen of the dual lumen tube extending into a hollow portion of the elongated probe element, and', 'a second lumen of the dual lumen tube being in fluid communication with the hollow portion;, 'an elongated probe element coupled to the distal end of the dual lumen tube,'}a housing coupled to the proximal end of the dual lumen tube;a first port coupled to the housing and in fluid communication with the first lumen; and 'the first lumen, the elongated probe element, and the second lumen providing a closed pathway through which a substance introduced through the first port flows through the first lumen into the elongated probe element and out of the elongated probe element through the second lumen to the second port.', 'a second port coupled to the housing and in fluid communication with the second lumen,'}2. The device for cryogenic biopsy sampling of claim 1 , wherein the elongated probe element comprises aluminum.3. The device for cryogenic biopsy sampling of claim 1 , wherein at least a portion of the inner surface of the ...

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Номер записи: 13
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: 14
05-01-2017 дата публикации

SURGICAL SYSTEM WITH USER ADAPTABLE TECHNIQUES BASED ON TISSUE IMPEDANCE

Номер: US20170000542A1
Автор: Denzinger Kristen G., Houser Kevin L., Yates David C.
Принадлежит:

A method for treating tissue includes applying an energy modality to tissue at an amplitude, measuring tissue impedance of the tissue, modulating application of the energy modality based on the measured tissue impedance, and ceasing application of the energy modality when a termination parameter is met. 1. A method for treating tissue comprising:delivering, by a drive circuit, an energy signal to a surgical instrument at an amplitude;measuring, by a processor, tissue impedance of tissue engaged with the surgical instrument;modulating, by the processor, delivery of the energy signal based on the measured tissue impedance; andceasing delivery of the energy signal when a termination parameter is met.2. The method of claim 1 , wherein the energy signal is an RF energy signal claim 1 , and wherein the amplitude is a therapeutic amplitude or a sub-therapeutic amplitude.3. The method of claim 1 , further comprising determining that the tissue is sealed based on measuring at least one of:an initial tissue impedance;an initial jaws-aperture of an end effector;a current tissue impedance;a rate of change of tissue impedance;ultrasonic energy driven into the tissue;RF energy driven into the tissue; anda transaction time.4. The method of claim 1 , wherein the energy signal is an RF energy signal or an ultrasonic energy signal.5. The method of claim 1 , wherein the energy signal comprises a first energy signal claim 1 , and wherein modulating delivery of the energy signal based on the measured tissue impedance comprises modifying an output power of a generator claim 1 , modifying an output waveform of the generator claim 1 , selecting a second energy signal to deliver to the surgical instrument claim 1 , or modifying the termination parameter.6. The method of claim 1 , wherein ceasing delivery of the energy signal when the termination parameter is met comprises ceasing delivery of the energy signal upon the tissue impedance matching a threshold value of tissue impedance.7. The ...

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Номер записи: 15
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: 16
11-01-2018 дата публикации

BIPOLAR ELECTROSURGICAL HAND SHEARS

Номер: US20180008337A1
Автор: Aronhalt Taylor W., Baxter, Boudreaux Chad P., Cropper Michael S., III Chester O., IV Frederick E., Messerly Jeffrey D., Morgan Jerome R., Schmid Katherine J., Shelton, Swayze Jeffrey S., Timm Richard W., Yates David C.
Принадлежит:

An apparatus comprises a first jaw, a second jaw, a first handle, and a second handle. The second jaw is pivotally coupled with the first jaw. The first jaw and the second jaw are configured to grasp tissue. The jaws provide offset electrode surfaces that are operable to deliver bipolar RF energy to tissue grasped between the jaws. The apparatus is further operable to sever tissue. A lockout feature selectively prevents tissue severing, based on an energization state of the jaws. 120-. (canceled)21. An apparatus for treating tissue , comprising: (i) a first grasping surface, and', '(ii) a first exterior surface arranged opposite of the first grasping surface;, '(a) a first jaw having (i) a second grasping surface, and', '(ii) a second exterior surface arranged opposite of the second grasping surface,', 'wherein the first and second grasping surfaces are configured to grasp tissue positioned therebetween when the first and second jaws are in a closed position; and, '(b) a second jaw having(c) a tissue engagement feature disposed on the first exterior surface and protruding outwardly away from the first grasping surface and a longitudinal axis of the first jaw, wherein the tissue engagement feature is configured to engage tissue and thereby restrict movement of the first jaw relative to the tissue when the first and second jaws are in an open position.22. The apparatus of claim 21 , wherein the tissue engagement feature extends along a path that is parallel to the longitudinal axis of the first jaw.23. The apparatus of claim 21 , wherein the tissue engagement feature extends along an axis arranged in a plane that contains the longitudinal axis of the first jaw and a longitudinal axis of the second jaw.24. The apparatus of claim 21 , wherein the tissue engagement feature includes a laterally facing portion configured to engage tissue to thereby restrict lateral movement of the first jaw relative to the tissue when the first and second jaws are in the open position.25. ...

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Номер записи: 17
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: 18
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: 19
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: 20
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: 21
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: 22
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: 23
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: 24
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: 25
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: 26
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: 27
11-02-2016 дата публикации

Wavefront analysis based on ablation parameters

Номер: US20160038047A1
Автор: Assaf Pressman, Eliahu Zino, Roy Urman, Shmuel Auerbach, Yaniv Ben Zriham
Принадлежит: Biosense Webster Israel Ltd

A method, including recording parameters indicative of a quality of ablation performed at one or more sites in a region of a human heart, and receiving a set of electrophysiological signals indicative of a wave of electrical activation flowing through the region. The method further includes identifying locations within the region at which the wave is blocked from flowing and estimating confidence levels with respect to a blockage of the wave at the locations in response to the signals and the parameters. The method also includes displaying a map of the human heart including an indication of the confidence levels.

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Номер записи: 28
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: 29
08-02-2018 дата публикации

METHODS AND SYSTEMS FOR ADVANCED HARMONIC ENERGY

Номер: US20180036065A1
Автор: Davison Mark A., Krumm Amy M., Yates David C.
Принадлежит:

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.” 1. A surgical system comprising:an end effector comprising at least one energy delivery component configured to transmit electrosurgical energy to tissue at a surgical site; and for a first application period, cause the energy delivery component to transmit the electrosurgical energy at a first power level, the first application period comprising a point in time where impedance of the tissue reaches a minimum value;', 'for a second application period after the first application period, cause the energy delivery component to transmit the electrosurgical energy at a decreasing power level from the first power level until a second power level is reached, the second power level lower than the first power level and the second application period comprising a point in time where the impedance of the tissue rises above the minimum impedance value;', 'for a third application period after the second application period, cause the energy delivery component to transmit the electrosurgical energy at a third power level, the third power level lower than the second power level and the third ...

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Номер записи: 30
08-02-2018 дата публикации

METHODS AND APPARATUSES FOR REMODELING TISSUE OF OR ADJACENT TO A BODY PASSAGE

Номер: US20180036072A1
Автор: MATHUR PRABODH, MOADDEB SHAHRAM
Принадлежит:

Medical devices and methods for making and using the same are disclosed. An example method may include a method for treating a patient having congestive heart failure. The method may include positioning an expandable balloon in a renal artery of the patient. The expandable balloon may include a plurality of electrode assemblies. At least some of the electrode assemblies each may include at least two bipolar electrode pairs. The two bipolar electrode pairs may be longitudinally and circumferentially offset from one another. The method may also include expanding the balloon in the renal artery such that at least some of the bipolar electrode pairs are electrically coupled to a wall of the renal artery and energizing at least some of the bipolar electrode pairs so as to therapeutically alter at least one nerve proximate the renal artery to treat the patient's congestive heart failure. 1. A method for treating a patient , the method comprising:positioning an expandable balloon within a lumen of the patient's body, the expandable balloon including a plurality of electrode assemblies, at least some of the electrode assemblies each including at least two bipolar electrode pairs, the two bipolar electrode pairs being longitudinally and circumferentially offset from one another;expanding the balloon in the lumen so that at least some of the bipolar electrode pairs are electrically coupled to a wall of the lumen; andenergizing at least some of the bipolar electrode pairs so as to therapeutically alter at least one nerve proximate the lumen so that a condition of the patient is mitigated,wherein energizing includes using a plurality of temperature sensors to adjust an energy output of the bipolar electrode pairs, each temperature sensor positioned between one of the bipolar electrode pairs, andwherein energizing includes using a processor to adjust the energy output of the bipolar electrode pairs in response to monitoring feedback from the plurality of temperature sensors.2. ...

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Номер записи: 31
24-02-2022 дата публикации

Surgical clip applier comprising an automatic clip feeding system

Номер: US20220054158A1
Автор: Chester O. Baxter, III, Frederick E. Shelton, IV, Jason L. Harris
Принадлежит: Individual

A surgical clip applier is disclosed which is configured to automatically feed a clip from a clip cartridge once the surgical clip applier is positioned in the patient.

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Номер записи: 32
24-02-2022 дата публикации

Faster rise time pulse shaping of plasma generated pressure waves for disruption of vascular calcium

Номер: US20220054194A1
Автор: Christopher A. Cook, Gerald David Bacher
Принадлежит: Bolt Medical Inc

A catheter system includes an inflatable balloon, an optical fiber and a laser. The optical fiber has a distal end positioned within the inflatable balloon. The optical fiber receives an energy pulse to emit light energy in a direction away from the optical fiber to generate a plasma pulse within the inflatable balloon. The laser includes a seed source that emits a seed pulse, and an amplifier that increases energy of the seed pulse. The energy pulse can have a somewhat square or triangular waveform with a duration T, a minimum power P0, a peak power PP, and a time from P0 to PP equal to TP, wherein TP is not greater than 40% of T. T can be within the range of greater than 50 ns and less than 3 μs. TP can be within the range of greater than 2.5 ns and less than 1 μs. PP can be within the range of greater than 50 kW and less than 1000 kW. A ratio in kW to ns of PP to TP can be greater than 1:5. The seed pulse can at least partially increase in amplitude over time.

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Номер записи: 33
07-02-2019 дата публикации

ABLATION SYSTEMS WITH MULTIPLE TEMPERATURE SENSORS

Номер: US20190038347A1
Автор: Johnson Jessi E., 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 cardiac ablation system , comprising:a catheter comprising an electrode assembly, the electrode assembly comprising a proximal electrode and a distal electrode, wherein the proximal electrode is separated from the distal electrode by a gap; andan energy delivery device configured to deliver energy at a frequency within an ablation radiofrequency range to the electrode assembly;wherein the proximal electrode is operatively coupled to the distal electrode using a filtering element at the ablation radiofrequency range such that the proximal electrode and the distal electrode function like a single electrode, and wherein the proximal electrode and the distal electrode function as separate electrodes at high-resolution mapping frequencies;wherein the system is configured to receive signals indicative of temperature from at least one temperature sensor positioned along the proximal electrode or distal electrode;wherein the system is configured to determine, upon execution of instructions stored on a non-transitory storage medium by a hardware processor, temperature measurements from the signals received from the at least one temperature sensor; andwherein the system is configured to adjust one or more treatment parameters of the ablation procedure based, at least in ...

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Номер записи: 34
18-02-2021 дата публикации

SYSTEM, METHOD AND COMPUTER-READABLE STORAGE DEVICE FOR CONTROLLING LASER LIGHT SOURCE OF LITHOTRIPSY DEVICE

Номер: US20210045812A1
Автор: Chida Masayasu, McLoughlin Anne G., Shelton Kurt G., Talbot Brian M.
Принадлежит:

A controller: performing one or more iterations of a first process, the first process including: selecting at least one variable operating parameter of a laser light source of a lithotripsy device; determining a value of each of a plurality of base settings of the at least one variable operating parameter selected; and performing, in order, for the each of the plurality of base settings: setting the at least one variable operating parameter selected to the value of the each of the plurality of base settings; and controlling the laser light source to output laser light based on the value of the each of the plurality of base settings set; selecting one of the plurality of base settings; and performing one or more iterations of a second process, the second process including controlling the laser light source based on the one of the plurality of base settings selected. 1. A system comprising: [ select at least one variable operating parameter of a laser light source of a lithotripsy device;', 'determine a value of each of a plurality of base settings of the at least one variable operating parameter selected; and', set the at least one variable operating parameter selected to the value of the each of the plurality of base settings; and', 'control the laser light source to output laser light based on the value of the each of the plurality of base settings set;, 'perform, in order, for the each of the plurality of base settings], 'perform one or more iterations of a first process, wherein in the first process the controller is configured to, 'select one of the plurality of base settings of the at least one variable operating parameter selected; and', 'perform one or more iterations of a second process, wherein in the second process, the controller is configured to control the laser light source based on the one of the plurality of base settings of the at least one variable operating parameter selected., 'a controller configured to2. The system according to claim 1 , ...

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Номер записи: 35
16-02-2017 дата публикации

Ablation systems and methods using heat shunt networks

Номер: US20170042613A1
Автор: Dorin Panescu, Eric Andrew SCHULTHEIS, Josef Vincent Koblish
Принадлежит: Advanced Cardiac Therapeutics Inc

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.

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Номер записи: 36
14-02-2019 дата публикации

Systems and methods for selective targeting of structural features in treating skin conditions

Номер: US20190046267A1
Автор: Richard Rox Anderson, Yakir Levin
Принадлежит: General Hospital Corp

Systems and methods are provided for locating anatomical features in the skin based on analysis of reflected light, and treating the located anatomical features using high-energy light. A labeling agent can be administered to optically differentiate the anatomical feature.

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Номер записи: 37
22-02-2018 дата публикации

ROBOTIC SURGICAL SYSTEM WITH ENERGY APPLICATION CONTROLS

Номер: US20180049817A1
Автор: Harris Jason L., IV Frederick E., Overmyer Mark D., Shelton, Strobl Geoffrey S., Swayze Jeffrey S., Yates David C.
Принадлежит:

A robotic surgical system is provided that includes an electromechanical tool coupled to a surgical instrument such as an end effector of the tool is adapted to apply ultrasound and/or radiofrequency (RF) energy to tissue when the end effector is in contact with the tissue. The end effector is configured to measure force exerted by the tissue on the end effector, which corresponds to tension at the tissue engaged by the end effector. A controller operatively coupled to the tool and the arm is configured to adjust a power applied to the tissue based on the measured force on the end effector. The controller can also adjust a type of energy such that one or both ultrasound and RF energy is selected to be applied to the tissue, based on measured force exerted by the tissue on the end effector. 1. A surgical system , comprising:an electromechanical arm configured for movement in multiple axes;an electromechanical tool having an instrument shaft and an end effector formed thereon, the electromechanical tool being configured to be mounted on the electromechanical arm, and the electromechanical tool being configured to move with or relative to the electromechanical arm and apply energy to tissue engaged by the end effector; and receive, during an application of at least one type of energy to the tissue, a plurality of measurements of a plurality of parameters of the tissue; and', 'adjust, based on the received plurality of measurements, at least one of level and type of energy applied to the tissue by the end effector., 'a controller operatively coupled to the electromechanical arm and the electromechanical tool, the controller configured to2. The surgical system of claim 1 , wherein the at least one type of energy includes radio frequency (RF) energy and ultrasonic energy.3. The surgical system of claim 1 , wherein the plurality of parameters include temperature at the tissue.4. The surgical system of claim 3 , wherein the controller is configured to adjust the power by ...

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Номер записи: 38
01-03-2018 дата публикации

SYSTEM AND METHOD FOR ENDOMETRIAL ABLATION

Номер: US20180055561A1
Автор: Truckai Csaba
Принадлежит:

A wall of a uterus is ablated by expanding a structure in the uterus and applying energy across the wall of the structure into the uterine wall. An exterior surface of the structure conforms to an inner wall of the uterus, and the energy may cause vapor to collect between the wall and the structure. The vapor is released by providing a barrier to release which is inflated at a pressure above which the barrier at least partially collapses to allow the vapor to leave the uterus. 1. An electrosurgical ablation probe comprising:a shaft having a proximal end, a distal end, and a gas flow passage with an opening near a distal end of the shaft;a dielectric wall having an interior surface, an exterior surface, and an interior volume surrounding the distal end of the shaft;a barrier element in the flow passage, said barrier configured to open when a gas pressure in the interior volume falls below a predetermined pressure and close when said gas pressure in the interior volume rises above the predetermined pressure;a first electrode structure disposed within the gas flow passage; anda second electrode structure disposed on an exterior surface of the shaft;said first and second electrodes configured to be connected to a source of a radiofrequency voltage to initiate a plasma in an electrically non-conductive gas flowing through the flow passage into the interior volume of the dielectric wall when tissue establishes a current path between the first and second electrodes;2. An electrosurgical ablation probe as in claim 1 , wherein the barrier element is disposed in a distal end of the gas flow passage.3. An electrosurgical ablation probe as in claim 1 , wherein the barrier element is a balloon structure which is inflatable independently of the expandable structure.4. An electrosurgical ablation probe as in claim 3 , wherein the barrier element comprises a proximal portion of the expandable structure.5. An electrosurgical ablation probe as in claim 3 , further comprising an ...

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Номер записи: 39
01-03-2018 дата публикации

SYSTEM AND METHOD FOR MONITORING ABLATION SIZE

Номер: US20180055567A1
Автор: Brannan Joseph D.
Принадлежит:

A system for monitoring ablation size includes a power source including a microprocessor for executing one or more control algorithms. A microwave antenna is configured to deliver microwave energy from the power source to tissue to form an ablation zone. A plurality of spaced-apart electrodes is operably disposed along a length of the microwave antenna. The plurality of spaced-apart electrodes is disposed in electrical communication with one another and each of the plurality of spaced-apart electrodes has a threshold impedance associated therewith corresponding to the radius of the ablation zone. 119-. (canceled)20. A system for monitoring ablation size , comprising:a power source; and an elongate shaft;', 'a plurality of proximal spaced-apart electrodes disposed on the elongate shaft;', 'a distal electrode disposed on the elongate shaft distally of the plurality of proximal spaced-apart electrodes;', 'a feedline having a distal radiating section disposed within the elongate shaft;', 'a first sensor disposed on at least one of the plurality of proximal spaced-apart electrodes; and', 'a second sensor disposed on the distal electrode., 'a microwave antenna configured to transmit microwave energy from the power source to tissue to form an ablation zone, the microwave antenna including21. The system according to claim 20 , wherein the plurality of proximal spaced-apart electrodes is disposed along a longitudinal axis of the elongate shaft and in electrical communication with one another.22. The system according to claim 20 , wherein the elongate shaft includes a distal tip and the distal electrode is disposed at the distal tip.23. The system according to claim 20 , wherein the microwave antenna includes a dielectric sheath positioned along the elongate shaft and encasing the plurality of proximal spaced-apart electrodes and the distal electrode to allow current to flow from the plurality of proximal spaced-apart electrodes to the distal electrode.24. The system ...

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Номер записи: 40
01-03-2018 дата публикации

Automatic irrigation-coordinated lithotripsy

Номер: US20180055568A1
Автор: Kurt G. Shelton, Tailin Fan
Принадлежит: Gyrus ACMI Inc

Systems and methods for controlling an irrigation flow rate during a lithotripsy procedure are provided. The system includes a laser configured for lithotripsy procedure, a lithotripsy irrigation system, and a temperature sensor configured to provide input to enable control of a flow of the lithotripsy irrigation system in response to a change in temperature from the operation of the laser.

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Номер записи: 41
02-03-2017 дата публикации

RANDOM PULSED HIGH FREQUENCY THERAPY

Номер: US20170056093A1
Автор: Cosman Eric Richard
Принадлежит:

A method and apparatus for modifying a function of tissue can include the application of an electromagnetic signal output to tissue cells. The electromagnetic signal output can have a waveform with bursts of signal output amplitude that produces fields in the tissue during the burst on-time that can modify cell components. The on-time periods are followed by off-time periods of low signal output amplitude which produce lesser modification effects on cell components. The on-time periods have time durations that are non-predetermined and random. The rate of on-time bursts can be regular, and in one example periodic. In one example, the waveform has amplitudes during the on-time periods and durations of on-time periods that causes elevation of the temperature of tissue that exceeds the lethal temperature levels of 45 to 50° C. 1. An apparatus for altering a function of living tissue comprising:an electrode; anda signal generator coupled to the electrode to generate a signal output to be applied to the living tissue through the electrode, the signal output having an interrupted waveform having bursts of on-time periods of a high frequency wave signal, the on-time periods having non-predetermined time durations, each of the on-time periods being followed by off-time periods of low signal output relative to the intensity of the preceding on-time period, and the bursts of the on-time periods commencing at a regular rate, such that the application of the signal output to the living tissue for a sufficient treatment time will result in alteration of a function of the living tissue.2. The apparatus of claim 1 , wherein the waveform results in an average temperature in the living tissue that is below the lethal temperature range of about 45 to 50° C.3. The apparatus of claim 1 , wherein the waveform results in an average temperature in the living tissue that is above the lethal temperature range of about 45 to 50° C.4. The apparatus of claim 2 , wherein the waveform of the ...

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Номер записи: 42
17-03-2022 дата публикации

MEDICAL DEVICE AND CONTROL METHOD

Номер: US20220079652A1
Автор: HAREYAMA Norihiko, Hayashida Tsuyoshi, Honda Satoshi, LEGASPI Danilo
Принадлежит: OLYMPUS CORPORATION

A medical device includes: an end effector configured to apply treatment energy for treating a living tissue according to supplied power; a drive source configured to supply the power to the end effector; and a processor configured to classify, in a first time period after a supply of the power to the end effector is started, the living tissue into any one of a plurality of tissue types based on a first parameter detected in the first time period, control an operation of the drive source after the first time period based on the classified tissue type, reclassify the classified living tissue into any one of the plurality of tissue types based on a second parameter detected after the first time period, and control an operation of the drive source based on the tissue type into which the classified living tissue is reclassified. 1. A medical device comprising:an end effector configured to apply treatment energy for treating a living tissue according to supplied power;a drive source configured to supply the power to the end effector; and classify, in a first time period after a supply of the power to the end effector is started, the living tissue into one of a plurality of tissue types based on a first parameter detected in the first time period;', 'control a first operation of the drive source after the first time period based on the classified tissue type,', 'reclassify the classified living tissue into one of the plurality of tissue types based on a second parameter detected after the first time period, and', 'control a second operation of the drive source based on the tissue type into which the classified living tissue is reclassified., 'a processor configured to2. The medical device according to claim 1 , wherein:the processor is configured to control, during the first time period, a third operation of the drive source to cause the drive source to supply the end effector with a constant power, andthe first parameter includes an impedance value of the living tissue ...

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Номер записи: 43
17-03-2022 дата публикации

Methods and apparatus for modifying or killing cells by manipulating the cell membrane charging time

Номер: US20220080192A1
Автор: Christopher FESMIRE, Michael Benjamin Sano, Ross A. PETRELLA
Принадлежит: North Carolina State University

A method of treatment includes modifying and/or killing cells by changing the cell membrane charging time to make the cells more susceptible to the influence of electric fields. The method may further include inserting one or more electrodes into tissue, acquiring a temperature of the tissue, delivering electrical energy to the tissue by electrical pulses, determining a rate of energy delivery of the electrical energy such that the temperature rises above a first critical temperature but remains below a second critical temperature, and delivering the electrical energy until a specific dose is achieved.

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Номер записи: 44
23-03-2017 дата публикации

Energy treatment apparatus

Номер: US20170079707A1
Автор: Akinori KABAYA, Norihiko Hareyama
Принадлежит: Olympus Corp

In an energy treatment apparatus, maximum source electric power of source electric power output from an electric power source is defined, first energy is generated by supplying first driving electric power to a first energy generator due to the source electric power, and second energy is generated by supplying second driving electric power to a second energy generator due to the source electric power. A controller keep the sum of the first driving electric power and the second driving electric power that are supplied per unit time less than or equal to the maximum source electric power of the electric power source continuously with time.

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Номер записи: 45
12-03-2020 дата публикации

Method for controlling a modular energy system user interface

Номер: US20200078106A1
Автор: Andrew W. CARROLL, Eitan T. Wiener, Gregory J. Bakos, James M. Vachon, Jeffrey L. Aldridge, Joshua Henderson, Joshua P. Morgan
Принадлежит: Ethicon LLC

A method for controlling a user interface of a modular energy system. The modular energy system comprises a header module and a display screen on which the user interface is displayed. The modular energy system can detect attachment of a first module thereto, control the user interface to display one or more first user interface elements corresponding to the first module, detect attachment of a second module to the modular energy system, control the user interface to resize the one or more first user interface elements to accommodate display of one or more second user interface elements corresponding to the second module, and control the user interface to display the one or more second user interface elements. The various UI elements can correspond to the particular module type that is being connected to the modular energy system.

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Номер записи: 46
12-03-2020 дата публикации

Energy module for drivig multiple energy modalities through a port

Номер: US20200078117A1
Автор: Andrew W. CARROLL, Eitan T. Wiener, James R. Hoch, Jeffrey L. Aldridge, John B. Schulte, John E. Hein, Joshua Henderson, Joshua P. Morgan, Ryan M. Asher
Принадлежит: Ethicon LLC, Plexus Corp

An energy module connectable to a surgical instrument is disclosed. The energy module can include a circuit, which can include a first amplifier and a second amplifier coupled to a port of the energy module to which a surgical instrument is connectable. The first amplifier can be configured to generate a first drive signal at a first frequency range and the second amplifier can be configured to generate a second drive signal at a second frequency range. The circuit can be configured to control the amplifiers to deliver the first drive signal, the second drive signal, and/or a combination of the first and second drive signals to a surgical instrument connected to the port.

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Номер записи: 47
30-03-2017 дата публикации

TREATMENT METHOD

Номер: US20170086875A1
Автор: MURASAWA Keiko, Tanigami Yasuo
Принадлежит: OLYMPUS CORPORATION

A method for treating cartilage of a human being includes bringing an excision unit into contact with a predetermined portion of the cartilage, heating the predetermined portion of the cartilage to a temperature of 120° C. or higher by the excision unit and excising, by the excision unit, the predetermined portion of the cartilage that has been heated to the temperature of 120° C. or higher while pressing the predetermined portion. 1. A method for treating cartilage of a human being , comprising:bringing an excision unit into contact with a predetermined portion of the cartilage;heating the predetermined portion of the cartilage to a temperature of 120° C. or higher by the excision unit; andexcising, by the excision unit, the predetermined portion of the cartilage that has been heated to the temperature of 120° C. or higher while pressing the predetermined portion.2. The method for treating cartilage according to claim 1 , wherein the predetermined portion is pressed in a direction different from a direction that the excision unit is in contact with the cartilage.3. The method for treating cartilage according to claim 1 , wherein the predetermined portion of the cartilage is damaged cartilage or denatured cartilage.4. The method for treating cartilage according to claim 1 , wherein the melting of the cartilage includes generating the friction heat to heat the cartilage not to exceed 220° C.5. The method for treating cartilage according to claim 1 , wherein the melting of the cartilage includes generating the friction heat to heat the cartilage not to exceed 160° C. This application is a Continuation-in-part application of U.S. patent application Ser. No. 14/867,805 filed Sep. 28, 2015, the entire contents of which are incorporated herein by reference.1. Field of InventionThe present invention relates to a treatment method.2. Description of Related ArtElectrical surgical devices capable of treating cartilage are disclosed in Jpn. PCT National Publication No. 2007- ...

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Номер записи: 48
05-05-2022 дата публикации

APPARATUS AND METHOD OF ASSESSING TRANSVASCULAR DENERVATION

Номер: US20220133404A1
Автор: NG Kok-Hwee
Принадлежит:

A catheter apparatus for assessing denervation comprises: an elongated catheter body; a deployable structure coupled to the catheter body, the deployable structure being deployable outwardly from and contractible inwardly toward the longitudinal axis of the catheter body; one or more ablation elements disposed on the deployable structure to move outwardly and inwardly with the deployable structure; one or more stimulation elements spaced from each other and disposed on the deployable structure to move with the deployable structure, the stimulation elements being powered to supply nerve stimulating signals to the vessel; and one or more recording elements spaced from each other and from the stimulation elements, the recording elements being disposed on the deployable structure to move with the deployable structure, the recording elements configured to record response of the vessel to the nerve stimulating signals.

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Номер записи: 49
20-04-2017 дата публикации

Catheter device including flow sensing

Номер: US20170105795A1
Автор: Clifford Liu, Fernando QUIVIRA, John Work, Lauren E. KLINKER, Roozbeh Ghaffari, Stephen P. Lee, Yung-Yu Hsu
Принадлежит: MC10 Inc

Devices and methods are provided for performing an ablation procedure on tissue with flow monitoring using flow sensors. The devices include a catheter, and at least one flow sensor disposed on the catheter, and a component for applying the ablation procedure. An assessment module provides an indication of the efficacy of the ablation procedure based on the flow measurement from the flow sensor.

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Номер записи: 50
28-04-2016 дата публикации

SYSTEM AND METHOD FOR GENERATING ELECTRIC CHARGES FROM HEART TO POWER IMPLANTABLE MEDICAL DEVICES

Номер: US20160114170A1
Автор: CHAUDHARY Vishal, Sakthivel Siva S., Thangaraju Shyam
Принадлежит:

Disclosed herein is system and method for generating, storing and transmitting electrical charge from heart's electrical conduction system to power implantable medical devices. An intelligent monitoring module in the system monitors amount of nerve impulses that are generated at the Sinoatrial (SA) node of the heart and continuously compares number of the generated nerve impulses with a threshold nerve impulse value. If excess impulses are detected, the intelligent monitoring module routes the excess nerve impulses to a battery management module which generates charge by converting the excess nerve impulses to electric charge. This charge may be further used to power up the implantable medical device. 1) A method for generating electric charge from electrical conduction system of heart to power up an implantable medical device (IMD) , said method comprises:measuring periodicity value of heart beat;comparing said measured periodicity value with a normal range of periodicity value; andgenerating said electric charge from said electrical conduction system of heart if said measured periodicity value exceeds said normal range of periodicity value.2) The method as in claim 1 , wherein said normal range of periodicity value is pre-configured.3) The method as in claim 1 , wherein said generated electric charge is used to power up said IMD.4) The method as in claim 1 , wherein generating electric charge from said electrical conduction system of heart further comprises of:counting number of nerve impulses value at sinoatrial (SA) node of said electrical conduction system of heart;comparing said counted number of nerve impulses value with a threshold nerve impulse value;identifying at least one excess nerve impulse, wherein said at least one excess nerve impulse refers to additional nerve impulse as compared to said a threshold nerve impulse value; andgenerating said electric charge by converting said at least one excess nerve impulse to electrical charge.5) The method as in ...

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Номер записи: 51
30-04-2015 дата публикации

Cooled microwave denervation catheter with insertion feature

Номер: US20150119870A1
Автор: Eric N. Rudie
Принадлежит: Denervx LLC

A catheter is disclosed for creating a lesion in nerve-containing tissue spaced from a body lumen while protecting tissue forming and adjacent to a wall of the body lumen from injury. The catheter includes a catheter body having at least one fluid passage therein, a balloon in communication with the at least one fluid passage to receive cooling fluid for inflating the balloon, a microwave antenna carried by the catheter that emits microwave energy omnidirectionally, thereby heating the tissue spaced from the body lumen to a temperature sufficient to cause thermal damage while the tissue forming and adjacent to the wall of the body lumen are maintained at a temperature where thermal damage does not occur, and a tip structure located at an end of the catheter body, configured to receive a guide wire extending through the at least one fluid passage in the catheter body.

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Номер записи: 52
13-05-2021 дата публикации

Surgical instrument with selectively actuated gap-setting features for end effector

Номер: US20210137544A1
Автор: Amy M. Krumm, Andrew KOLPITCKE, Brian D. Black, Bryce L. HEITMAN, David A. Monroe, Fajian Zhang, Geni M. GIANNOTTI, Ion V. Nicolaescu, Jason R. Lesko, John E. Brady, Joseph Dennis, Joseph E. Hollo, Matthew C. Miller, Matthew S. Schneider, Monica L. Rivard, Rafael J. Ruiz Ortiz, Richard C. Smith, Ryan M. Asher, Sarah A. Worthington, Shawn C. Snyder, Timothy S. Holland
Принадлежит: Cilag GmbH International

A surgical instrument, has an end effector that includes an ultrasonic blade, and a clamp arm that moves relative to the ultrasonic blade from an opened position toward an intermediate position and a closed position. The clamp arm is offset from the ultrasonic blade to define a predetermined gap in the intermediate position between the opened position and the closed position. A clamp arm actuator connects to the clamp arm and moves from an opened configuration to a closed configuration to direct the clamp arm from the opened position toward the intermediate position and the closed position. A spacer connects with the clamp arm to inhibit movement of the clamp arm from the intermediate position toward the closed position for maintaining the predetermined gap between the clamp arm and the ultrasonic blade.

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Номер записи: 53
16-04-2020 дата публикации

Cautery tool for intracranial surgery

Номер: US20200113619A1
Автор: Matthew Scott Lake, Peter G. Davis, Ross Tsukashima
Принадлежит: Rebound Therapeutics Corp

A tool for treating hematoma in the brain, and other tissue in the body, especially suited for use through a cannula. The tool may include a cautery probe for sealing blood vessels in the brain, and a macerating structure for disrupting a hematoma, and aspiration features for removing macerated hematoma debris from the body.

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Номер записи: 54
24-07-2014 дата публикации

Skin treatment devices and methods

Номер: US20140207217A1
Автор: Daniel Lischinsky, Yoram Harth
Принадлежит: EndyMed Medical Ltd

Radiofrequency (RF) skin treatment devices and methods are provided herein. RF energy is delivered via electrodes in a phase-controlled manner which heats skin volumes below the surface more than the skin surface itself. At least one electrode at least partially encloses at least one other electrode. The combination of controlling the phases of the RF energy delivered to different electrodes and the enclosing configuration of the electrodes allows concentrating the delivered energy in specific regions below the skin surface at a particularly high efficiency. Configurations of the enclosing and the enclosed electrodes, their forms and combinations with other electrodes and the phase polarities applied to the electrodes are also provided.

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Номер записи: 55
02-05-2019 дата публикации

Surgical suturing instrument comprising a non-circular needle

Номер: US20190125336A1
Автор: Andrew C. Deck, Asaad Hossain, Frederick E. Shelton, IV, Gregory G. Scott, Gregory J. Bakos, Nicholas M. Morgan
Принадлежит: Ethicon LLC

A surgical suturing system is disclosed. The surgical suturing system comprises a shaft comprising a shaft diameter, a firing drive, and an end effector extending distally from the shaft. The end effector comprises a needle track and a needle comprising suturing material attached thereto, wherein the needle is configured to be guided by the needle track and actuated by the firing drive through a firing stroke, and wherein the needle is movable along a needle path comprising a maximum capture width which is greater than the shaft diameter.

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Номер записи: 56
02-05-2019 дата публикации

Surgical clip applier comprising adaptive firing control

Номер: US20190125348A1
Автор: Frederick E. Shelton, IV, Jason L. Harris
Принадлежит: Ethicon LLC

A surgical clip applier comprising an electric motor system is disclosed. The electric motor system is configured to drive one or more drive systems of the surgical clip applier. The surgical clip applier comprises a control system configured to control the electric motor system. The control system is configured to monitor a parameter of the electric motor system to assess the operation of the one or more drive systems. In at least one instance, the control system monitors the electric current drawn by an electric motor and adapts the operation of the electric motor based on the electric current being drawn by the motor. The control system slows the electric motor down when the electric current drawn by the electric motor exceeds a threshold. The control system modulates the width, or duration, of voltage pulses applied to the electric motor to control the speed of the electric motor.

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Номер записи: 57
02-05-2019 дата публикации

Surgical dissectors configured to apply mechanical and electrical energy

Номер: US20190125430A1
Автор: Chester O. Baxter, III, Frederick E. Shelton, IV, Jason L. Harris
Принадлежит: Ethicon LLC

A surgical instrument comprising an end effector is disclosed. The end effector comprises a surgical dissector. The surgical dissector can apply mechanical and/or electrosurgical energy to treated tissue.

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Номер записи: 58
08-09-2022 дата публикации

Method for providing control data for an eye surgical laser of a treatment apparatus

Номер: US20220280241A1
Автор: Anita Grimm, Samuel Arba Mosquera
Принадлежит: Schwind Eye Tech Solutions GmbH

The invention relates to a method for providing control data for an eye surgical laser of a treatment apparatus for the removal of a tissue from a human or animal cornea. The method includes ascertaining a temperature distribution, which is expected in the cornea per laser pulse, determining a laser pulse sequence of a preset laser pulse distribution for removing the tissue by means of a temperature model of the cornea, wherein a respective laser pulse position in the cornea is preset by the laser pulse distribution and wherein it is preset by the laser pulse sequence, in which order the preset laser pulse positions are irradiated with the respective laser pulses, wherein a temperature profile of the cornea is calculated by means of cumulated temperature distributions of the laser pulses in the temperature model and a difference profile to a preset limit temperature profile is determined, and wherein the order of the laser pulses is ascertained depending on the difference profile for determining the laser pulse sequence, and providing control data for controlling the eye surgical laser, which uses the laser pulse sequence for removing the tissue.

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Номер записи: 59
10-06-2021 дата публикации

System and Method for Mitigating Rising Impedance Via a Pump Assembly During Use of Cooled Radiofrequency Probes

Номер: US20210169556A1
Автор: Jennifer J. BARRETT, Joseph DIPIETRO, Rasagnya M. VISWANADHA, Ruoya Wang, Tyler W. CRONE
Принадлежит: Avent Inc

A method of treating tissue of a patient's body includes providing a power source coupled to at least one probe assembly. The probe assembly includes an elongate member with a distal region and a proximal region. The distal region has an electrically and thermally-conductive energy delivery device for delivering one of electrical and radiofrequency energy to the patient's body. The electrically and thermally-conductive energy delivery device has one or more internal lumens for circulating a cooling fluid therethrough and an electrically and thermally-conductive protrusion having a temperature sensing element. The temperature sensing element extends from a distal end of the energy delivery device. The method includes inserting the energy delivery device of the at least one probe assembly into the patient's body. Further, the method includes routing the energy delivery device of the at least one probe assembly to the tissue of the patient's body. The method also includes simultaneously circulating the cooling fluid through the one or more internal lumens via at least one pump assembly and delivering energy from the power source to the tissue through the energy delivery device. Further, the method includes monitoring one or more procedure parameters while delivering the energy from the power source to the tissue through the energy delivery device. Moreover, the method includes determining, in real-time, whether a rising impedance event is likely to occur in a predetermined time period based on the one or more procedure parameters and determining a command for the pump assembly based on whether the rising impedance event is likely to occur in the predetermined time period.

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Номер записи: 60
10-06-2021 дата публикации

Devices for therapeutic nasal neuromodulation and associated methods and systems

Номер: US20210169566A1
Автор: Brian SHIELDS, Conor Farrell, David TOWNLEY, Ivan KEOGH, Michele QI ZHAN
Принадлежит: National University of Ireland Galway NUI

Devices for therapeutic nasal neuromodulation and associated systems and methods are disclosed herein. A system for therapeutic neuromodulation in a nasal region configured in accordance with embodiments of the present technology can include, for example, a shaft and a therapeutic element at a distal portion of the shaft. The shaft can locate the distal portion intraluminally at a target site inferior to a patient's sphenopalatine foramen. The therapeutic element can include an energy delivery element configured to therapeutically modulate postganglionic parasympathetic nerves at microforamina of a palatine bone of the human patient for the treatment of rhinitis or other indications. In other embodiments, the therapeutic element can be configured to therapeutically modulate nerves that innervate the frontal, ethmoidal, sphenoidal, and maxillary sinuses for the treatment of chronic sinusitis.

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Номер записи: 61
07-06-2018 дата публикации

Implant device and system for ablation of a vessel's wall from the inside

Номер: US20180153607A1
Автор: Glenn Van Langenhove
Принадлежит: Medical Development Technologies SA

The current invention concerns systems, devices and methods for the ablation of a ablation of the wall of one or more pulmonary veins (PV) from the inside, preferably transmural ablation and preferably at the level of the antrum. Hereby, one or more implant devices can be implanted in the vessels and can subsequently be heated by external energy-providing means.

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Номер записи: 62
23-05-2019 дата публикации

Method and Apparatus for Treating Female Urinary Incontinence and Fecal Incontinence

Номер: US20190151012A1
Автор: Dale Koop, Sherry Thomas
Принадлежит: Individual

A device and method for treating female urinary incontinence and also for treating fecal incontinence are presented. A fractional RF grid array is used to heat target tissue to a temperature of about 40-45° C. for a specified period of time, thus stimulating fibroblasts to produce type 1 collagen preferably without producing significant amounts of type 3 collagen. The device includes a temperature sensor and a control circuit to maintain the desired temperature of the target tissue and avoid overheating. Target tissue includes tissue in and around the urethra, and in and around the anus including the perineum. The wand to which the RF grid array is mounted has visible gradations on it so that the user can treat one area at a time, then reliably move the grid array to the next adjacent area even though the grid array is hidden from view inside a portion of the body. The device can also be used for vaginoplasty.

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Номер записи: 63
28-08-2014 дата публикации

Device and method for real-time lesion estimation during ablation

Номер: US20140243813A1
Автор: Cao Hong, Paul Saurav
Принадлежит: St. Jude Medical, Atrial Fibrillation Division, Inc.

Disclosed herein are ablation systems and methods for providing feedback on lesion formation in real-time. The methods and systems assess absorptivity of tissue based on a degree of electric coupling or contact between an ablation electrode and the tissue. The absorptivity can then be used, along with other information, including, power levels and activation times, to provide real-time feedback on the lesions being created. Feedback may be provided, for example, in the form of estimated lesion volumes and other lesion characteristics. The methods and systems can provide estimated treatment times to achieve a desired lesion characteristic for a given degree of contact, as well as depth of a lesion being created. The degree of contact may be measured using different techniques, including the phase angle techniques and a coupling index. 143-. (canceled)44. An ablation control system , comprising:a measurement circuit to determine a degree of electrical coupling between an ablation electrode and a tissue to be ablated;a clock to measure a time period during which ablative energy is applied by the ablation electrode to the tissue to be ablated; the degree of electrical coupling between the ablation electrode and the tissue to be ablated;', 'a power level at which the ablation electrode applies ablative energy to the tissue to be ablated;', 'the measured time period during which the ablation electrode applies ablative energy to the tissue to be ablated; and, 'a lesion analysis processor for estimating lesion formation as a function of at leasta controller coupled to the lesion analysis processor and configured to control an ablation power source based on information provided by the lesion analysis processor.45. The ablation control system according to claim 44 , wherein the measurement circuit determines the degree of electrical coupling between the ablation electrode and the tissue to be ablated using phase angles.46. The ablation control system according to claim 45 , ...

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Номер записи: 64
04-09-2014 дата публикации

Methods of determining tissue contact based on radiometric signals

Номер: US20140249521A1
Автор: Eric R. Kanowsky, John McCarthy, Timothy J. Lenihan
Принадлежит: Advanced Cardiac Therapeutics Inc

Methods and systems are provided for detecting tissue contact prior to and/or during energy delivery to tissue. For example, the methods may include calculating temperature and detecting tissue contact based on signal(s) received from a radiometer. The radiometer may provide information about whether a treatment device is in contact with the tissue, and thus provide feedback to assist a clinician in properly contacting and treating the tissue.

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Номер записи: 65
01-07-2021 дата публикации

RF TREATMENT APPARATUS, METHOD OF CONTROLLING RF TREATMENT APPARATUS AND SKIN TREATMENT METHOD USING RF ENERGY

Номер: US20210196342A1
Автор: COHEN Richard Howard, KO Kwang Chon
Принадлежит:

The present invention relates to an RF treatment apparatus, the method of controlling the RF treatment apparatus and the skin treatment method using RF energy according to the present invention have an effect in that they can improve the accuracy and efficiency of treatment because whether a target tissue corresponds to a treatment temperature is determined based on impedance of the tissue and the volume of the target tissue corresponding to the treatment temperature can be maximized while maintaining the target tissue to the treatment temperature for a predetermined time. 1. An RF treatment apparatus , comprising:an RF generator generating RF energy;an electrode applying the RF energy to a target tissue;a sensor unit configured to sense the RF energy; anda controller controlling output of the RF generator, receiving a sensing value from the sensor unit, calculating impedance of the target tissue, and cutting off the RF energy if the impedance is determined to have increased for a specific period.2. The RF treatment apparatus of claim 1 , wherein:the controller determines the impedance to have increased for the specific period when a parameter value exceeds a threshold, andthe parameter value is defined as a product of a specific time and the impedance of the tissue.3. The RF treatment apparatus of claim 2 , wherein the parameter is defined as a product of a rising time from a current time to the predetermined time before and impedance for the rising time.4. The RF treatment apparatus of claim 3 , wherein the rising time is a case where the impedance continues to have increased from the current time to the predetermined time before.5. The RF treatment apparatus of claim 2 , wherein the parameter value is defined as a product of the specific time and an average of the impedance for the predetermined time.6. The RF treatment apparatus of claim 2 , wherein the parameter value is defined as a product of the specific time and an average of changes in the impedance for ...

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Номер записи: 66
21-06-2018 дата публикации

NEUTRAL DRIVE FEEDBACK LOOP COMPENSATION FOR DETECTED ELECTROSURGICAL UNIT SIGNAL

Номер: US20180168708A1
Автор: Bakalos Pericles Nicholas
Принадлежит:

Methods and apparatuses are provided for neutral drive feedback loop compensation of detected electrosurgical unit signals. An apparatus includes an electrosurgery unit (ESU) signal detection circuit, a compensation switch, and an ESU filter switch. Both switches activate based on an output of the ESU signal detection circuit. A neutral drive feedback loop circuit is configured to compensate for a phase change characteristic of an ESU filter circuit. 1. An apparatus comprising:an electrosurgery unit (ESU) signal detection circuit;a compensation switch and an ESU filter switch both electrically coupled to an output of the ESU signal detection circuit; anda neutral drive feedback loop circuit configured, based on the compensation switch being in an active state, to compensate for a phase change characteristic of an ESU filter circuit activated by the ESU filter switch being in an active state.2. The apparatus according to claim 1 , wherein the ESU signal detection circuit comprises:a peak voltage detector configured to measure an ESU voltage level;a threshold circuit configured to set a threshold voltage for comparison with the measured ESU voltage level; andan ESU signal operational amplifier configured to compare the threshold voltage and the measured ESU voltage level.3. The apparatus according to claim 2 , wherein the peak voltage detector comprises:a series resistor-capacitor (RC) circuit, wherein an electrode input signal is connected to a resistor of the series RC circuit;a parallel inductor diode circuit having a first diode and an inductor, the parallel inductor diode circuit electrically coupled between a capacitor of the series RC circuit and earth ground;a second diode electrically coupled in series with the parallel inductor diode circuit, wherein an anode end of the second diode is connected to a cathode end of the first diode; and a parallel RC circuit electrically coupled between a cathode end of the second diode and earth ground,wherein the measured ...

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Номер записи: 67
21-06-2018 дата публикации

SYSTEMS AND METHODS FOR PROSTATE TREATMENT

Номер: US20180168712A1
Автор: Beyreis Randall, BILITZ Mark, Hoey Michael, PAULOS Stephanos, SCHROM Mark
Принадлежит:

A vapor delivery needle is provided that may include any of a number of features. One feature of the energy delivery probe is that it can apply condensable vapor energy to tissue, such as a prostrate, to shrink, damage, denaturate the prostate. In some embodiments, the vapor delivery needle can be advanced a predetermined distance into the prostate by an actuation mechanism. The actuation mechanism can comprise, for example, a spring, or at least one magnet. Methods associated with use of the energy delivery probe are also covered. 1. A prostate treatment device , comprising:an introducer shaft sized and configured for transurethral access into a patient;a vapor generator configured to generate a condensable vapor;a vapor delivery needle in communication with the vapor generator and slidably disposed within the introducer shaft, the vapor delivery needle coupled to at least one magnet; anda magnetic actuator configured to apply magnetic force to the at least one magnet coupled to the vapor delivery needle to move the vapor delivery needle between a retracted position inside the introducer shaft and an extended position at least partially outside of the introducer shaft.2. The device of wherein the magnetic actuator is configured to axially move the at least one needle and the vapor delivery needle toward the extended position from the retracted position at a velocity ranging from 0.1 meter per second to 20.0 meters per second.3. The device of wherein the magnetic actuator is configured to cause a tip portion of the vapor delivery needle to penetrate into prostate tissue when moving toward the extended position from the retracted position.4. The device of wherein the vapor delivery needle is sized and configured to extend into prostate tissue when the introducer shaft is positioned within a urethra of the patient.5. The device of claim 1 , the magnetic actuator comprising a first rotatable block carrying at least one magnet and a second rotatable block carrying at ...

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Номер записи: 68
21-06-2018 дата публикации

Electrosurgical system for tissue cauterization

Номер: US20180168716A1
Автор: Gregg D Scheller, William J Bowers
Принадлежит: Kogent Surgical LLC

An electrosurgical system for tissue cauterization may include a user interface, a front panel display, an electrosurgical generator, a power supply of the electrosurgical generator, a system control of the electrosurgical generator, an RF system of the electrosurgical generator, and a bipolar forceps assembly. The electrosurgical system may be configured to cauterize a tissue. A tissue cauterization may include system activation, tissue impedance analysis, establishment of tissue cauterization parameters, monitoring and adjustment of tissue cauterization, and system deactivation. The establishment of tissue cauterization parameters may include establishing a tissue cauterization curve configured to minimize an amount of time required to cauterize a tissue.

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Номер записи: 69
02-07-2015 дата публикации

Surgical generator for ultrasonic and electrosurgical devices

Номер: US20150182276A1
Автор: Brian T. Noyes, Daniel W. Price, Eitan T. Wiener, Foster B. Stulen, James R. Giordano, Jeffrey D. Messerly, Jeffrey L. Aldridge, Jeffrey P. Wiley, John E. Hein, Joseph A. Brotz, Matthew C. Miller, Nathan J. Price, Robert J. Beetel, III, Robert L. Koch, Jr.
Принадлежит: Ethicon Endo Surgery Inc

A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.

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Номер записи: 70
13-06-2019 дата публикации

SYSTEM AND METHOD FOR ABLATING A TISSUE SITE BY ELECTROPORATION WITH REAL-TIME MONITORING OF TREATMENT PROGRESS

Номер: US20190175248A1
Автор: Davalos Rafael V., II Robert, Neal
Принадлежит:

A medical system for ablating a tissue site with real-time monitoring during an electroporation treatment procedure. A pulse generator generates a pre-treatment (PT) test signal prior to the treatment procedure and intra-treatment (IT) test signals during the treatment procedure. A treatment control module determines impedance values from the PT test signal and IT test signals and determines a progress of electroporation and an end point of treatment in real-time based on the determined impedance values while the treatment progresses. 1. A medical system for ablating a tissue site with real-time monitoring during an electroporation treatment procedure , comprising:at least two electrodes adapted to be introduced near a target region of a tissue site;a pulse generator configured to generate and apply between the electrodes a plurality of electroporation pulses for ablation of tissue in the target region, a pre-treatment (PT) test signal prior to the treatment procedure and intra-treatment (IT) test signals during the treatment procedure;a treatment control module adapted to determine impedance values from the PT test signal and IT test signals and to determine a progress of electroporation based on the determined impedance values.2. The medical system of claim 1 , wherein:the pulse generator is configured to generate and apply between the electrodes an alternating current signal as the PT test signal and a direct current signal as the IT test signals;the treatment control module determines an end of treatment when the impedance value from the IT test signals reaches the impedance value from the PT test signal.3. The medical system of claim 1 , wherein:the pulse generator is configured to generate and apply between the electrodes an alternating current signal as the PT test signal and a direct current signal as the IT test signals;the treatment control module sets a baseline impedance value by adjusting the impedance value of the PT test signal by a selected impedance ...

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Номер записи: 71
09-07-2015 дата публикации

Systems and Methods for Monitoring and Controlling Ultrasound Power Output and Stability

Номер: US20150190121A1
Автор: Michael H. Slayton, Paul Jaeger
Принадлежит: Guided Therapy Systems LLC

Some embodiments provide a method of providing ultrasound energy having a stable power output. The method can comprise providing ultrasound energy from a ultrasound transducer; determining a power level threshold of the ultrasound energy; monitoring a power level of the ultrasound energy over time of the ultrasound energy; communicating a power level to a controller; adjusting the frequency of the ultrasound energy upon a change in the power level; and maintaining the power level threshold of the ultrasound energy.

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Номер записи: 72
05-07-2018 дата публикации

LAPAROSCOPIC RADIOFREQUENCY SURGICAL DEVICE

Номер: US20180185087A1
Автор: Loudermilk Brandon, WALBERG ERIK
Принадлежит:

Embodiments of the disclosed technology relate to a bipolar electrosurgical device for a laparoscopic environment, as well as methods for the use of such a device. Embodiments of the device may include a set of opposing jaws comprising at least one bipolar electrode pair disposed thereon, the set of jaws configured to deliver radiofrequency energy to a target tissue. Embodiments of the set of jaws, when closed, may have a diameter no greater than about 5 mm. The device may further include a shaft with a diameter that may be no greater than about 5 mm. Each of the jaws has a tissue-facing surface of each jaw that may include a complementary self-aligning configuration with respect to the longitudinal axis of the other jaw. Embodiments of the device may further include a pinless rotation assembly formed from rotatably cooperative features of the first jaw and the second jaw that connect the jaws together and enable the jaw set to pivot between an open position and a closed position. 147.-. (canceled)48. An electrosurgical device comprising:a set of opposing jaws disposed distal to a shaft, the jaws comprising a first jaw and a second jaw, the first jaw comprising a proximal jaw piece and a distal jaw piece, wherein the jaw pieces of the first jaw are pivotably connected with each other, each jaw comprising a tissue-engaging surface with at least one bipolar electrode disposed thereon, wherein the distal jaw piece of the first jaw comprises the tissue-engaging surface of the first jaw, the jaws configured to deliver radiofrequency energy to a target tissue, each of the jaws comprising a longitudinal axis, the tissue-engaging surface of each jaw having a complementary self-aligning configuration with respect to the longitudinal axis of the other jaw;a blade positioned on a longitudinally disposed blade track, the track having a proximal end and a distal end, wherein the blade may be positioned at a home position at the proximal end of the track, at the distal end of the ...

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Номер записи: 73
05-07-2018 дата публикации

INSTRUMENTS, SYSTEMS, AND METHODS FOR SEALING TISSUE STRUCTURES

Номер: US20180185088A1
Автор: ARYA SHOBHIT, DARZI ARA W., HANNA GEORGE B., Su Lei
Принадлежит:

A method of sealing bowel tissue includes grasping bowel tissue between first and second electrically-conductive surfaces, applying a clamping pressure to the grasped bowel tissue in a range of about 1 kg/cmto about 2.5 kg/cm, supplying energy to at least one of the first and second electrically-conductive surfaces such that the energy is conducted between the first and second electrically-conductive surfaces and through the grasped bowel tissue to seal the grasped bowel tissue, and monitoring one or more parameters during the supplying of energy to the electrically-conductive surface(s). Instruments, end effector assemblies, generators, and systems suitable for this purpose are also provided. 118-. (canceled)19. A surgical system for sealing tissue , the system comprising:an energy-based surgical instrument including an end effector assembly having first and second jaw members, at least one of the first or second jaw members movable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween, each of the first and second jaw members including an electrically-conductive surface, the end effector assembly further including at least one sensor operably associated therewith and configured to sense an impedance of the grasped tissue; monitor the impedance of the grasped tissue as a function of time during the supply of energy to the at least one electrically-conductive surface;', 'determine an actual impedance ramp, wherein the actual impedance ramp represents the monitored impedance of the grasped tissue as a function of time;', 'compare the actual impedance ramp with a target impedance ramp, wherein the target impedance ramp represents a change in impedance as a function of time that results in sealing of tissue while minimizing tissue denaturation, tissue damage, and breakdown of tissue layer architecture; and', 'control the supply of energy from the energy output to the at least one of electrically-conductive ...

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Номер записи: 74
16-07-2015 дата публикации

Systems and methods for multifrequency cable compensation

Номер: US20150196349A1
Автор: Alexander M. Waskiewicz, Andrey Y. Belous, Anthony D. Ricke, Robert H. Wham
Принадлежит: COVIDIEN LP

The electrosurgical systems and methods of the present disclosure perform cable compensation using an electrosurgical generator that includes a plurality of sensors configured to sense voltage and current waveforms, a plurality of medium-band filters, a plurality of narrowband filters, and a signal processor. The plurality of medium-band filters and narrowband filters pass sensed voltage and current waveforms at a plurality of predetermined frequencies. The signal processor calculates medium-band RMS voltage and current values using the output from the plurality of medium-band filters, calculates narrowband phase and magnitude values using the output from the plurality of narrowband filters, calculates tissue impedance based on the medium-band RMS voltage and current values and the narrowband phase value, and generates a control signal to control the energy generated by the electrosurgical generator based on the calculated tissue impedance.

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Номер записи: 75
06-07-2017 дата публикации

Microwave energy-delivery device and system

Номер: US20170189115A1
Автор: Casey M. Ladtkow, Darion R. Peterson, Eric W. Larson, Jason A. Case, Joseph D. Brannan, Richard A. Willyard, William J. Dickhans
Принадлежит: COVIDIEN LP

An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device for applying energy to the point of interest.

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Номер записи: 76
11-06-2020 дата публикации

Methods and devices for energy delivery and therapy

Номер: US20200179027A9
Автор: Amrish J. WALKE, Christine M. TATE, Dinesh I. Mody, Ketan Shroff
Принадлежит: MicroCube LLC

Energy delivery devices and methods that have one or more features to measure or estimate the amount of energy dose delivered to a target material. Methods and systems for calculating an energy dose to be delivered to the target material. The devices and methods deliver an accurate energy dose to the target material. Devices, systems and methods using microwave energy delivery devices can calculate the energy dose from returned power measurements. Systems and methods adjusting one or more energy delivery parameters or one or more system components while delivering an energy dose to achieve a desired thermal effect.

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Номер записи: 77
11-06-2020 дата публикации

Systems and methods for therapeutic nasal neuromodulation

Номер: US20200179041A1
Автор: Brian SHIELDS, David TOWNLEY
Принадлежит: Neurent Medical Ltd

The invention generally relates to systems and methods for therapeutically modulating nerves in or associated with a nasal region of a patient for the treatment of a rhinosinusitis condition.

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Номер записи: 78
11-06-2020 дата публикации

Systems and methods for therapeutic nasal neuromodulation

Номер: US20200179042A1
Автор: Brian SHIELDS, David TOWNLEY
Принадлежит: Neurent Medical Ltd

The invention generally relates to systems and methods for therapeutically modulating nerves in or associated with a nasal region of a patient for the treatment of a rhinosinusitis condition.

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Номер записи: 79
12-07-2018 дата публикации

SYSTEMS, DEVICES AND METHODS FOR PERFORMING MEDICAL PROCEDURES IN THE INTESTINE

Номер: US20180193590A1
Автор: Caplan Jay, FLAHERTY J. Christopher, Gardner Craig M., Rajagopalan Harith
Принадлежит: Fractyl Laboratories, Inc.

A method for performing a medical procedure in an intestine of a patient is provided. The method comprises providing a system comprising: a catheter for insertion into the intestine, the catheter comprising: an elongate shaft comprising a distal portion; and a functional assembly positioned on the shaft distal portion and comprising at least one treatment element. The catheter is introduced into the patient, and target tissue is treated with the at least one treatment element. The target tissue comprises mucosal tissue of the small intestine, and the medical procedure can be configured to treat at least one of non-alcoholic fatty liver disease (NAFLD) or non-alcoholic steatohepatitis (NASH). 1. A method for performing a medical procedure in an intestine of a patient , comprising:selecting a patient diagnosed with at least one of non-alcoholic fatty liver disease (NAFLD) or non-alcoholic steatohepatitis (NASH);providing a system comprising:a catheter for insertion into the intestine, the catheter comprising:an elongate shaft comprising a distal portion; anda functional assembly positioned on the shaft distal portion and comprising at least one treatment element;introducing the catheter into the patient diagnosed with at least one of NAFLD or NASH; andtreating target tissue with the at least one treatment element, wherein the target tissue comprises mucosal tissue of the patient's small intestine;wherein the medical procedure is configured to treat the at least one of NAFLD or NASH.2. The method according to claim 1 , wherein the medical procedure is further configured to treat insulin resistance.3. The method according to claim 1 , wherein the medical procedure is further configured to treat a disease or disorder selected from the group consisting. of: Type 2 diabetes; Type 1 diabetes; “Double diabetes”; gestational diabetes; hyperglycemia; pre-diabetes; impaired glucose tolerance; insulin resistance; and combinations thereof.4. The method according to claim 1 , ...

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Номер записи: 80
12-07-2018 дата публикации

METHOD FOR APPLYING PULSED RADIO FREQUENCY ENERGY TO THE SPINAL CANAL

Номер: US20180193656A1
Автор: Mantsch Christian, Omar-Pasha Omar, Stumpp Uwe
Принадлежит:

A flexible catheter includes two electrical contacts in a distal region of the catheter and a distal aperture of a hose line. The electrical contacts are connected to a high frequency pulse generator for applying pulsed radio frequency energy for nerve stimulation. A temperature sensor is located in the distal region of the catheter. The flexible catheter is inserted into a region in the spinal canal and the pulsed radio frequency generator is operated, thereby applying pulsed radio frequency energy to a localized region to be treated. The temperature at the distal region of the catheter can also be monitored, and the pulsed radio frequency energy is applied in dependence on the monitored temperature. With the catheter, pain and other medical conditions being related to and influenced by a nervous system are treated. 110-. (canceled)1. A stimulation system for applying pulsed radio frequency energy , said system comprising: a mantle having a first end that is a distal end and a proximal region that is longitudinally apart from said distal end,', 'at least first and second electrical contacts that are connected to said mantle and that have electrical leads that are encased by said mantle and said first and second electrical contacts,', 'a temperature sensor that is encased by said mantle and at least one of said first and second electrical contacts, said temperature sensor being responsive to temperature of at least one of said first and second electrical contacts, and', 'a casing that is secured to said mantle at a location in the proximal region of said mantle, wherein said casing includes a sending and receiving coil that is connected to a transducer, said transducer being adapted to measure electrical potentials, currents and/or voltages; and, 'a subcutaneously implantable flexible epidural catheter including'}an external device that includes an antenna that cooperates with said sending and receiving coil that is connected to said transducer, wherein said ...

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Номер записи: 81
29-07-2021 дата публикации

METHODS AND SYSTEMS FOR CONTROLLING ENERGY DELIVERY IN MEDICAL DEVICES

Номер: US20210228269A1
Автор: Avisa Ron, Breton Thomas, Claude John, Lundberg Daniel, Lyons Gerald, McNally Guy, Merchant Adnan, SALAHIEH Amr, Schileru Rodica
Принадлежит:

Systems for controlling ablation procedures that include a user interface. The user interface can include a display; and a memory with a computer executable method stored thereon, the computer executable method adapted to cause to be displayed on the display a plurality of interactive elements for controlling one or more aspects of the ablation. 116-. (canceled)17. A system for controlling an ablation procedure , comprising:a user interface comprising a display; anda memory with a computer executable method stored thereon, the computer executable method adapted to cause to be displayed on the display a plurality of graphical elements, each of the plurality of graphical elements representing a corresponding electrode carried by an ablation catheter in communication with an ablation energy generator, the computer executable method further adapted to, in response to user interaction with the display in a manner specific to one of the plurality of graphical elements, toggle the respective plurality of graphical elements between at least an active source state having an active source visual indicator, an active sink state having an active sink visual indicator, and an inactive state with an inactive state visual indicator, wherein each of the three visual indicators are unique,wherein the active source state designates that the respective electrode is one of a plurality of active source electrodes, wherein the active sink state designates that the respective electrode is one of a plurality of active sink electrodes, wherein the plurality of active source electrodes together create a first pole in a bipolar mode, and wherein the plurality of active sink electrodes together create a second pole in the bipolar mode,wherein the system is adapted to connect the plurality of active sink electrodes to a ground, and to connect the plurality of active source electrodes to a source.18. The system of claim 17 , wherein claim 17 , if the number of active source electrodes in the ...

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Номер записи: 82
20-07-2017 дата публикации

Modular battery powered handheld surgical instrument with multiple magnetic position sensors

Номер: US20170202598A1
Автор: David C. Yates, Frederick E. Shelton, IV, Kevin L. Houser
Принадлежит: Ethicon Endo Surgery LLC, Ethicon LLC

A system comprising a surgical instrument is disclosed. The surgical instrument includes a handle, a shaft, a plurality of magnets, a plurality of sensors configured to determine a distance away from one or more of the plurality of magnets, and a processor communicatively coupled to the plurality of sensors. The processor is configured to determine a three dimensional change in position of the shaft by computing a three dimensional change in position of the one or more magnets, using the change in the distances determined by the one or more plurality of sensors.

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Номер записи: 83
28-07-2016 дата публикации

Catheter or guidewire device including flow sensing and use thereof

Номер: US20160213424A1
Автор: John A. Wright, Jr., John Work, Lauren Klinker, Roozbeh Ghaffari, Stephen Lee
Принадлежит: MC10 Inc

Devices and methods are provided for performing procedure on tissue with flow monitoring using flow sensors. The devices include an elongated member, and at least one flow sensor disposed on the elongated member. The flow sensor includes at least one temperature sensor and at least one heating element having a cavity. At least a portion of the at least one temperature sensor is housed in the cavity. A temperature measurement of the temperature sensor provides an indication of the flow rate of a fluid proximate to the flow sensor.

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Номер записи: 84
27-07-2017 дата публикации

Temperature controlled short duration ablation

Номер: US20170209209A1
Автор: Andres Claudio Altmann, Assaf Govari, Israel Zilberman, Yaron Ephrath
Принадлежит: Biosense Webster Israel Ltd

A method, including selecting a first maximum radiofrequency (RF) power to be delivered by an electrode within a range of 70 W-100 W, and selecting a second maximum RF power to be delivered by the electrode within a range of 20 W-60 W. The method also includes selecting an allowable force on the electrode within a range of 5 g-50 g, selecting a maximum allowable temperature, of tissue to be ablated, within a range of 55° C.-65° C., and selecting an irrigation rate for providing irrigation fluid to the electrode within a range of 8-45 ml/min. The method further includes performing an ablation of tissue using the selected values by initially using the first power, switching to the second power after a predefined time between 3 s and 6 s, and terminating the ablation after a total time for the ablation between 10 s and 20 s.

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Номер записи: 85
04-07-2019 дата публикации

Surgical instrument with a hardware-only control circuit

Номер: US20190201025A1
Автор: David C. Yates, Frederick E. Shelton, IV, Gregory J. Bakos, Jason L. Harris
Принадлежит: Ethicon LLC

A surgical instrument is disclosed. The surgical instrument includes an electric motor and a control circuit. The control circuit includes a plurality of logic gates and a monostable multivibrator. The monostable multivibrator is connected to a first one of the logic gates. The control circuit is configured to alter a rate of action of a function of the surgical instrument by controlling a speed of rotation of the electric motor based on a sensed parameter.

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Номер записи: 86
04-07-2019 дата публикации

Surgical instruments comprising button circuits

Номер: US20190201028A1
Автор: Frederick E. Shelton, IV, Gregory J. Bakos, Jason L. Harris, Michael J. Vendely
Принадлежит: Ethicon LLC

A surgical instrument is disclosed comprising an actuator and circuitry mounted on and/or embedded in the actuator.

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Номер записи: 87
04-07-2019 дата публикации

Ultrasonic energy device which varies pressure applied by clamp arm to provide threshold control pressure at a cut progression location

Номер: US20190201080A1
Автор: David C. Yates, Frederick E. Shelton, IV, James M. Wilson, Jason L. Harris, Jeffrey D. Messerly
Принадлежит: Ethicon LLC

Surgical instruments and system and methods for using surgical instruments are disclosed. A surgical instrument comprises an end effector comprising an ultrasonic blade and clamp arm, an ultrasonic transducer, and a control circuit. The ultrasonic transducer ultrasonically oscillates the ultrasonic blade in response to a drive signal from a generator. The end effector receives electrosurgical energy to weld tissue. The control circuit determines a resonant frequency measure indicative of a thermally induced change in resonant frequency and a electrical continuity measure; calculates a weld focal point based on the determined measures, controls closure of the clamp arm to vary a pressure applied by the clamp arm to provide a threshold control pressure to the tissue loaded into the end effector, and maintains a gap between the ultrasonic blade and clamp arm at a point proximal to the proximal end of the tissue. Pressure is varied based on corresponding weld focal point.

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Номер записи: 88
04-07-2019 дата публикации

Method for operating surgical instrument systems

Номер: US20190206565A1
Автор: Frederick E. Shelton, IV
Принадлежит: Ethicon LLC

A method for adjusting the operation of a surgical instrument using machine learning in a surgical suite is disclosed.

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Номер записи: 89
02-08-2018 дата публикации

Medical skin wrinkle improvement device using peak of laser pulse wave

Номер: US20180214208A1
Автор: You In KIM
Принадлежит: Individual

The present invention relates to a medical skin wrinkle improvement device using a peak of a laser pulse wave, and more specifically, to a medical skin wrinkle improvement device using a peak of a laser pulse wave, thereby lowering the degree of carbonization of a skin tissue having the laser irradiated thereon, thus enhancing a skin generation effect and shortening recovery time. The present invention comprises: a main body ( 100 ) which has formed on the upper part thereof a holding groove ( 110 ) having a tablet computer ( 200 ) attached/detached thereto, and which has mounted therein a controller ( 120 ) for controlling a hand piece ( 300 ) and the tablet computer ( 200 ); the hand piece ( 300 ) which comprises a laser oscillation unit ( 320 ), an optical unit ( 330 ) and a laser scanner, the laser oscillation unit ( 320 ) generating a laser to be irradiated for skin treatment, the optical unit ( 330 ) irradiating, as a parallel light, the laser generated by the laser oscillation unit ( 320 ), and the laser scanner adjusting the irradiation location of the laser transferred from the optical unit ( 330 ); and the tablet computer ( 200 ) which is provided with data input and screen display functions by means of a touch screen method, and which remotely controls the main body ( 100 ) through the transmission/reception of a bi-directional wireless signal.

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Номер записи: 90
16-10-2014 дата публикации

Methods for tissue ablation measurement and control and devices thereof

Номер: US20140309632A1
Автор: Alireza Yavari, Steven Meyer, Wayne Ogata, Xiang Ian Gu
Принадлежит: RetroVascular Inc

An apparatus comprises a first longitudinal member and a second longitudinal member configured to be located near a tissue region. An energy source is coupled to first longitudinal member and second longitudinal member. A measuring device is configured to measure at least one characteristic of the tissue region. An energy controller is coupled to the energy source and the measuring device. The energy controller includes a processor coupled to a memory and configured to execute programmed instructions stored in the memory, comprising initiating a delivery of energy to the tissue region from the energy source. One or more items of data are received from the measuring device based on the delivery of energy to the tissue region. The delivery of energy to the tissue region is adjusted based on the one or more items of data.

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Номер записи: 91
09-08-2018 дата публикации

SYSTEMS, DEVICES AND METHODS FOR PERFORMING MEDICAL PROCEDURES IN THE INTESTINE

Номер: US20180221622A1
Автор: Caplan Jay, FLAHERTY J. Christopher, Gardner Craig M., Rajagopalan Harith
Принадлежит: Fractyl Laboratories, Inc.

A method for performing a medical procedure in an intestine of a patient is provided. The method comprises providing a system comprising: a catheter for insertion into the intestine, the catheter comprising: an elongate shaft comprising a distal portion; and a functional assembly positioned on the shaft distal portion and comprising at least one treatment element. The catheter is introduced into the patient, and target tissue is treated with the at least one treatment element. The target tissue comprises mucosal tissue of the small intestine, and the medical procedure can be configured to treat polycystic ovarian syndrome (PCOS). 1. A method for treating a patient diagnosed as having polycystic ovarian syndrome , said method comprising:treating a target mucosal tissue of the patient's small intestine to modify at least one of nutrient absorption by the target mucosal tissue, hormonal signaling from the target mucosal tissue, or secretions of the target tissue, wherein the treatment is configured to treat polycystic ovarian syndrome.2. The method according to claim 1 , wherein the medical procedure is further configured to treat insulin resistance.3. The method according to claim 1 , wherein the medical procedure is further configured to treat a disease or disorder selected from the group consisting of: Type 2 diabetes;Type 1 diabetes; “Double diabetes”; gestational diabetes; hyperglycemia; pre-diabetes; impaired glucose tolerance; insulin resistance; and combinations thereof.4. The method according to claim 1 , wherein treatment is performed with a system comprising:a catheter for insertion into the intestine, the catheter comprising:an elongate shaft comprising a distal portion;a functional assembly positioned on the shaft distal portion and comprising at least one treatment element; anda console operably attached to the functional assembly, and wherein the console comprises one or more variable console parameters used to control the functional assembly;and wherein ...

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Номер записи: 92
26-08-2021 дата публикации

ENERGY DELIVERY SYSTEM USING AN ELECTRIC FIELD

Номер: US20210259768A1
Автор: French Jacob R., Gorans Marc S., Kleven James J., Werder Wade D., Worcester Derek
Принадлежит:

An energy delivery system includes an RF synthesizer circuit configured to generate an RF electric signal and a preamplification stage operably coupled to the RF synthesizer circuit. The preamplification stage has at least one attenuator. A board controller is operably coupled to the attenuator of the preamplification stage that is configured to modify a gain setting of the attenuator. An output connection is configured to provide a low-power signal or a high-power signal based on at least the RF electric signal and the gain setting. The low-power signal or high-power signal is provided to an RF applicator configured to couple an alternating RF electric field to animal tissue. 116-. (canceled)17. An energy delivery system , comprising:an RF synthesizer circuit configured to generate an RF electric signal at more than one frequency;a preamplification stage operably coupled to an output of the RF synthesizer circuit, wherein the preamplification stage comprises an attenuator; modify a gain setting of the attenuator; and', 'change the frequency of the RF electric signal to impedance match based on a return loss value; and, 'a board controller operably coupled to the RF synthesizer circuit and to the attenuator of the preamplification stage, wherein the board controller is configured toan output connection configured to provide a low-power signal or a high-power signal based on at least the RF electric signal and the gain setting of the attenuator, wherein the low-power signal or the high-power signal is configured to be provided to an RF applicator configured to couple an alternating RF electric field to animal tissue.18. The system according to claim 17 , further comprising at least one amplifier operably coupled between the attenuator and the output connection.19. The system according to claim 17 , further comprising a circulator operably coupled between the preamplification stage and the output connection.20. The system according to claim 17 , further comprising ...

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Номер записи: 93
24-08-2017 дата публикации

Treatment system, and treatment method for living tissue using energy

Номер: US20170238989A1
Автор: Kenichi Kimura, Tomoyuki Takashino
Принадлежит: Olympus Corp

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.

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Номер записи: 94
06-11-2014 дата публикации

Ablation system, methods, and controllers

Номер: US20140330266A1
Автор: John B. Blix, Mark Allen Catron, Sara A. Thompson, Sukanya Varadharajan
Принадлежит: St Jude Medical Cardiology Division Inc

Multi-electrode ablation systems, methods, and controllers are described. In one example, a power supply is configured to be coupled to a plurality of electrodes. A controller includes a touchscreen display configured to display at least a graphical representation of each electrode of the ablation system. The controller is configured to receive an interactive input for each respective electrode to select and deselect the electrode for activation, during which power may be supplied thereto, by touching the graphical representation of the respective electrode on the touchscreen display. This may occur during a diagnostic mode and/or an ablation procedure run mode of the system.

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Номер записи: 95
07-09-2017 дата публикации

Variable active clipper circuit to control crest factor in an ac power converter

Номер: US20170252090A1
Автор: Daniel A. Friedrichs, Robert B. Smith, Steven C. Rupp
Принадлежит: COVIDIEN LP

An electrosurgical generator includes: a power supply configured to output a DC waveform; a current or voltage source coupled to the power supply and configured to output current; and a power converter coupled to the current source. The power converter includes at least one power switching element operated at a switching waveform and configured to generate a radio frequency waveform based on the energy from the current or voltage source. The radio frequency waveform includes at least one pulse having an overshoot peak. The electrosurgical generator further includes a clipper circuit coupled to the current source and the power converter, the clipper circuit configured to generate a clipping voltage to clip the overshoot peak; and a controller coupled to the power converter and configured to modulate the switching waveform to generate the radio frequency waveform.

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Номер записи: 96
30-09-2021 дата публикации

SYSTEMS AND METHODS OF COMMUNICATING THERMAL INFORMATION FOR SURGICAL ROBOTIC DEVICES

Номер: US20210298815A1
Автор: Scheib Charles J.
Принадлежит:

A medical system includes a thermal instrument, one or more processors, and memory. The medical system receives a user input for selecting a desired mode of two or more predefined modes, and places the medical system in the desired mode of the two or more predefined modes based on the user input. While the medical system is in a first mode of the two or more predefined modes, one or more signals for providing a feedback signal to a user are sent. The one or more signals are based on a temperature of a thermal instrument and a distance between the thermal instrument and a secondary object. 1. A medical system , comprising:a thermal instrument;one or more processors; and receiving a user input for selecting a desired mode of two or more predefined modes; and', 'placing the medical system in the desired mode of the two or more predefined modes based on the user input,', 'wherein in a first mode of the two or more predefined modes, one or more signals for providing a feedback signal to a user are sent, wherein the one or more signals are based on a temperature of a thermal instrument and a distance between the thermal instrument and a secondary object., 'memory storing instructions for execution by the one or more processors, the stored instructions including instructions for2. The medical system of claim 1 , wherein the stored instructions include instructions for sending one or more signals to a display device for presenting a user interface for receiving the user input for selecting a desired mode of the two or more predefined modes.3. The medical system of claim 1 , wherein the stored instructions include instructions for:switching from the first mode to a second mode in accordance with a first user input; andswitching from the second mode to the first mode in accordance with a second user input.4. The medical system of claim 1 , wherein one or more signals for providing the feedback signal includes signals corresponding to a graphical overlay including a warning in ...

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Номер записи: 97
28-09-2017 дата публикации

METHODS AND DEVICES FOR ENERGY DELIVERY AND THERAPY

Номер: US20170273730A1
Автор: MODY Dinesh I., SHROFF Ketan, TATE Christine M., WALKE Amrish J.
Принадлежит: MicroCube, LLC

Energy delivery devices and methods that have one or more features to measure or estimate the amount of energy dose delivered to a target material. Methods and systems for calculating an energy dose to be delivered to the target material. The devices and methods deliver an accurate energy dose to the target material. Devices, systems and methods using microwave energy delivery devices can calculate the energy dose from returned power measurements. Systems and methods adjusting one or more energy delivery parameters or one or more system components while delivering an energy dose to achieve a desired thermal effect. 1. A system for applying energy to an energy delivery device , the system comprising:a source of energy;a memory unit configured to store at least one target energy dose; anda controller configured to apply an applied energy dose to the energy delivery device from the source of energy, the controller configured to calculate a loss during energy delivery, where the controller is further configured to determine an amount of delivered energy using the loss during energy delivery and to compare the amount of delivered energy to the at least one target energy dose to provide a signal when the applied energy dose reaches the at least one target energy dose.2. The system of claim 1 , further comprising a user interface is configured to increase or decrease the at least one target energy dose.3. The system of claim 2 , where the user interface is configured to display one or more patient data associated with increasing or decreasing the at least one target energy dose.4. The system of claim 3 , where the one or more patient data comprises data selected from the group consisting of an anatomic feature claim 3 , an anatomic measurement claim 3 , a previous medical procedure claim 3 , a medical condition claim 3 , and a lower pain tolerance.5. The system of claim 2 , where the at least one target energy dose comprises a maximum target energy dose and a minimum ...

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Номер записи: 98
29-08-2019 дата публикации

Medical rf apparatus and a method for controlling the same

Номер: US20190262066A1
Автор: Kwang Chon Ko, Richard Howard COHEN
Принадлежит: Lutronic Corp

Disclosed herein is a medical RF apparatus using an RF pulse, comprising an RF generator, which generates a test pulse for detecting characteristics of tissue; a monitoring unit, which monitors the change in the information on the tissue state while the test pulse is transmitted to the tissue; and a measurement unit, which determines the tissue characteristics of a patient by comparing the values monitored in the monitoring unit with the reference data; and a method for controlling the same.

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Номер записи: 99
25-11-2021 дата публикации

SYSTEM AND METHOD FOR ABLATING A TISSUE SITE BY ELECTROPORATION WITH REAL-TIME MONITORING OF TREATMENT PROGRESS

Номер: US20210361341A1
Автор: Davalos Rafael V., II Robert, Neal
Принадлежит:

A medical system for ablating a tissue site with real-time monitoring during an electroporation treatment procedure. A pulse generator generates a pre-treatment (PT) test signal prior to the treatment procedure and intra-treatment (IT) test signals during the treatment procedure. A treatment control module determines impedance values from the PT test signal and IT test signals and determines a progress of electroporation and an end point of treatment in real-time based on the determined impedance values while the treatment progresses. 120-. (canceled)21. A medical system comprising:an electrical pulse generator capable of being operatively coupled to one or more electrodes;processing circuitry coupled to the electrical pulse generator; and send instructions to the electrical pulse generator, wherein the instructions are capable of causing the electrical pulse generator to generate one or more pre-treatment (PT) test signals and to generate one or more intra-treatment (IT) test signals, which IT test signals comprise a direct current signal; and', 'determine an effect on tissue in a target region by a plurality of electrical pulses based on a difference between one or more electrical properties of the tissue in the target region associated with application of one or more of the PT test signals to the tissue in the target region and one or more electrical properties of the tissue in the target region associated with application of one or more of the IT test signals to the tissue in the target region., 'a memory coupled to the processing circuitry, the memory comprising instructions that when executed by the processing circuitry are capable of causing the processing circuitry to22. The system of claim 21 , wherein the instructions to the electrical pulse generator are capable of causing application of one or more of the PT test signals prior to application of the plurality of electrical pulses.23. The system of claim 22 , wherein the instructions to the electrical ...

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