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WO2018055046A1 - Système électrochirurgical - Google Patents

Système électrochirurgical Download PDF

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Publication number
WO2018055046A1
WO2018055046A1 PCT/EP2017/073932 EP2017073932W WO2018055046A1 WO 2018055046 A1 WO2018055046 A1 WO 2018055046A1 EP 2017073932 W EP2017073932 W EP 2017073932W WO 2018055046 A1 WO2018055046 A1 WO 2018055046A1
Authority
WO
WIPO (PCT)
Prior art keywords
tissue
instrument
treated
electrosurgical system
pressing surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/073932
Other languages
German (de)
English (en)
Inventor
Andreas HÖRLLE
Hanno Winter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Winter and Ibe GmbH
Original Assignee
Olympus Winter and Ibe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Winter and Ibe GmbH filed Critical Olympus Winter and Ibe GmbH
Publication of WO2018055046A1 publication Critical patent/WO2018055046A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345—Vascular system
    • A61B2018/00404—Blood vessels other than those in or around the heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/0063—Sealing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00666—Sensing and controlling the application of energy using a threshold value
    • A61B2018/00678—Sensing and controlling the application of energy using a threshold value upper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00696—Controlled or regulated parameters
    • A61B2018/00702—Power or energy
    • A61B2018/00708—Power or energy switching the power on or off
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
    • A61B2018/1823—Generators therefor

Definitions

  • the invention relates to an electrosurgical system for generating microwave radiation. Furthermore, the invention relates to a method for operating an electrosurgical system, a use of the electrosurgical system and an application of the method.
  • Clamping instruments so-called stackers
  • stackers have led to the widespread use and rapid development of minimally invasive surgery in the field of wound closure through their simple and rapidly applicable joining technique.
  • the forklift technology also had disadvantages: the non-resorbable foreign materials remaining in the body of the patient, such as titanium staples, for example, increased.
  • wound healing important for wound healing deteriorated the wound margins due to staple compression.
  • Body tissue is described, for example, in US 2008/0300618 A1, US 2007/0239260, WO99 / 40857 or WO 2008/125259.
  • electrosurgical tissue fusion is used instead of conventional sutures for wound closure.
  • the optimal wound closure is a crucial prerequisite for the complication-free convalescence of a surgically treated patient.
  • Document US 2012/0101500 A1 describes an anastomosis ring for connecting hollow organs of human or animal tissue.
  • the anastomosis ring has at least one energy delivery element which can be connected to an energy source.
  • the energy delivery element is designed to at least partially fuse the tissue by means of energy during operation.
  • Document EP 2 233 098 A1 describes a device for tissue sealing.
  • a pair of pliers with opposite clamping members is described, each having a sealing surface, wherein one of the sealing surfaces include one or more microwave antennas connected to a microwave energy source.
  • the object of the invention is to provide an improved electrosurgical system, in particular for use in tissue fusion of body tissue.
  • an electrosurgical system for anastomosis of body tissue is proposed to solve this problem, which has a microwave generator and an electrosurgical instrument, and preferably also a temperature measuring arrangement and a control unit.
  • the microwave generator is connected or connected to an antenna arrangement and is designed to supply the antenna arrangement with a predetermined microwave signal.
  • the electrosurgical instrument has a first instrument portion having a first pressing surface and a second instrument portion having a second pressing surface, the first and second instrument portions being movable and configured relative to each other by movement of the first instrument portion second instrument section to provide a pressing of a to be treated between the first pressing surface and the second pressing surface to be treated tissue area.
  • the antenna arrangement is arranged and formed on the first instrument section such that during operation of the electrosurgical system it heats the tissue area to be treated during the pressing by providing microwave radiation.
  • the temperature measuring arrangement is designed to measure a spectral radiation characteristic of this tissue region during the pressing of the respective tissue region to be treated.
  • the control unit which is electrically connected to the temperature measuring arrangement, is designed to set the predetermined microwave signal as a function of the spectral emission characteristic measured by the temperature measuring arrangement.
  • the invention includes the realization that, in the context of a fusion of body tissue to be achieved, the application of microwave radiation causes the body tissue to be heated particularly effectively in the undried state as well as in the dried state by the microwave radiation.
  • the microwave signal heats the tissue area to be treated by virtue of its dipole and multipole vibrations due to its electromagnetic properties of molecules, in particular of water molecules.
  • microwave radiation advantageously has a lower heating power than for moist tissue, thereby avoiding unwanted overheating of the tissue to be treated.
  • the frequency of the microwave signal is within a frequency range between 300 MHz and 300 GHz.
  • the temperature measuring arrangement by which the spectral radiation characteristic of the tissue area to be treated is measured.
  • the temperature of the tissue can also be determined by the temperature measuring arrangement during heating by the microwave radiation. In this way, it can be ensured via the contact provided to the control unit that the temperature of this tissue area is on the one hand not too small for the treatment to be performed, and on the other hand is not too high, whereby unwanted damage to the tissue can be avoided. As a result, an unwanted adhesion of the tissue to the first or second pressing surface is avoided, which can usually occur in an excessive drying of the tissue.
  • the spectral emission characteristic can be measured, for example, directly via a temperature measurement or by measuring the heat radiation of the tissue to be treated.
  • control unit is designed to interrupt a supply of the antenna arrangement with the microwave signal if a temperature of the tissue area corresponding to the measured spectral emission characteristic is above a predetermined upper limit temperature.
  • inventive electrosurgical system can ensure particularly effectively that the tissue pressed during the treatment by the pressing surfaces is not damaged inadvertently, in particular that no unwanted permanent damage of the body tissue occurs.
  • uniform limit temperature uniform wound closure by the electrosurgical system can be facilitated if larger tissue areas are uniformly heated to the threshold temperature.
  • control unit is designed to measure an operating time of the electrosurgical system.
  • the start of a measurement of the operating time takes place when the microwave generator supplies the antenna arrangement with the microwave signal and at the same time the first and second instrument sections are moved relative to each other such that a pressure of a tissue region can be present.
  • a control unit can be used to determine the position of a joint, by means of which the first and the second instrument section can be moved relative to one another, thereby detecting the presence of a pressure.
  • the volume of the tissue between the pressing surfaces decreases, the pressing force and / or the thickness of the tissue between the pressing surfaces can serve as a control variable for adjusting and, if necessary, switching off the intensity of the microwave signal. Since the relative position of the pressing surfaces to one another depends on the thickness of the tissue between the pressing surfaces, these too can serve as a control variable in the aforementioned sense.
  • control unit is designed to increase the intensity of the microwave signal if a temperature of the tissue region corresponding to the measured spectral emission characteristic is below a lower limit temperature dependent on the measured operating time. This avoids that the operation of the electrosurgical system in the context of a specific application takes a comparatively long time, for example, to perform the anastomosis of body tissue.
  • the temperature measuring arrangement comprises a temperature measuring antenna, which is arranged on the first or second instrument section, so that the temperature measuring arrangement can measure the spectral radiation characteristic of the tissue area by means of an electromagnetic radiation emitted by the tissue area and received by the temperature measuring antenna.
  • the temperature measuring arrangement has at least two temperature measuring antennas, so that the temperature in two regions of the tissue area can be measured during a pressing operation.
  • the electrosurgical instrument preferably has a joint around which the first and the second instrument section can be moved relative to one another.
  • the area of the tissue area near the joint typically has a particularly large pressure.
  • a first temperature measuring antenna is arranged in the immediate vicinity of the joint on the first or the second instrument section and a second temperature measuring antenna is arranged at a distance from the joint at the first or the second instrument section.
  • the first and second pressing surfaces comprise respective first and second pressing surface structures capable of securing the tissue to be treated against displacement during pressing.
  • the first pressing surface has a non-planar, for example corrugated, first pressing surface structure, the second pressing surface having a second pressing surface structure corresponding thereto.
  • the first and second pressing surface structure can be achieved at certain points a particularly strong pressure. High contact pressure in combination with heating via the microwave radiation leads to a particularly effective fusion of body tissue, for example in the context of an anastomosis.
  • the antenna arrangement has at least two antennas, which are arranged on the first and / or the second instrument section of the electrosurgical instrument.
  • the antenna arrangement comprises an antenna control unit in addition to a plurality of antennas.
  • the antenna control unit is in this case designed to distribute the microwave signal of the microwave generator to the plurality of antennas.
  • the antenna arrangement can be adapted particularly advantageously to different positions of the plurality of antennas and / or to different numbers of antennas. In particular, this allows the electrosurgical system to be adapted to different treatment situations.
  • the resistance of the tissue to be treated is determined, for example via an alternating voltage provided to two electrodes on the first and / or second instrument section.
  • a tissue information can be determined, which allows conclusions about a desiccation of the tissue.
  • the limit temperature is dependent on the drying of the tissue.
  • the control unit may be configured, only from a certain resistance and a correspondingly corresponding drying out. Tung the tissue to adjust the microwave signal depending on the measured spectral emission.
  • the application of the microwave signal can occur before, after or simultaneously with the provision of a pressure.
  • An advantage of the method according to the invention is that the tissue is heated by means of microwave radiation so that it can be heated both in a moist state before treatment and in a dry state during the course of the treatment, without changing the technology used for the heating must become. Furthermore, by measuring the spectral radiation characteristic, the microwave radiation can be adjusted according to the temperature of the tissue to be treated, so that overheating and underheating are avoided.
  • the last two process steps of the method according to the invention that is to say the measurement of the spectral emission characteristic and the adjustment of the microwave signal, are preferably carried out repeatedly. This allows the temperature to be controlled over an extended period of time.
  • the application of the predetermined microwave signal is preferably interrupted if a temperature of the tissue region corresponding to the measured spectral emission characteristic is above a predetermined limit temperature.
  • the resistance of the tissue to be treated is determined, for example via an alternating voltage provided to two electrodes on the first and / or second instrument section.
  • the tissue information that can be determined here can allow conclusions to be drawn about the tissue drying out.
  • the microwave signal it is particularly advantageous for the microwave signal to be set as a function of the measured spectral emission characteristic exactly when, according to the tissue information, a predetermined degree of dehydration has been exceeded.
  • Another aspect of the invention relates to the use of an electrosurgical system of the type described above for fusion of tissue, in particular for anastomosis of body tissue.
  • Another aspect relates to the application of the above-described method in the context of a fusion of tissue, in particular in an anastomosis of body tissue.
  • Fig. 1 shows an embodiment of an electrosurgical system according to a first
  • Fig. 2 shows an inventive method for operating a
  • Electrosurgical system according to a second aspect of the invention.
  • the electrosurgical system 100 is designed for anastomosis of body tissue and comprises a microwave generator 110, an electrosurgical instrument 120, a temperature measuring arrangement 130 and a control element 140.
  • the microwave generator 110 is connected to an antenna arrangement 15 and designed to supply the antenna arrangement 15 with a predetermined microwave signal 1 18 during operation of the electrosurgical system 100.
  • the antenna arrangement 15 comprises two antennas 16a, 16b.
  • the antennas 1 16a and 16b are designed to emit microwave radiation 1 19 in accordance with a received microwave signal 1 18.
  • the electrosurgical instrument 120 comprises a first instrument section 121 having a first pressing surface 122 and a second instrument section 126 having a second pressing surface 127.
  • the first pressing surface 122 has a first pressing surface structure 123 and the second pressing surface 127 has a second pressing surface structure 128, the second pressing surface structure 128 correspondingly the first press surface structure 123 is formed such that between the two instrument sections 121, 126, a fabric section can be pressed non-slip and secure.
  • the first and second instrument sections 121, 126 are movable relative to each other and configured to effect pressing of a tissue area to be treated between the first pressing surface 122 and the second pressing surface 127 by moving the first instrument section 121 relative to the second instrument section 126. In this case, the movement of the instrument sections 121, 126 takes place via a pivotable joint 124.
  • the antenna arrangement 1 15 with the two antennas 16a, 16b is arranged and formed on the first instrument section 12, during operation of the electrosurgical system 100 the tissue area to be treated during the pressing by providing the microwave radiation 1 19 to heat.
  • the electrosurgical instrument 120 has a control unit 125, which detects a pressed state of the electrosurgical instrument 120 via a circuit which is closed against one another in the pressed state of the instrument sections 121, 126.
  • the temperature measuring arrangement 130 is designed to measure a spectral emission characteristic of this tissue region during the pressing of the respective tissue region to be treated.
  • the temperature measuring arrangement 130 has a temperature measuring antenna 132.
  • the temperature measuring antenna 132 is arranged in the second instrument section 126 such that the temperature measuring arrangement 130 passes through an electromagnetic radiation emitted by the tissue region and received by the temperature measuring antenna 132 can measure the spectral radiation characteristic of the tissue region.
  • the control unit 140 is electrically connected to the temperature measuring arrangement 130 and the control unit 125 and is designed to set the predetermined microwave signal 18 depending on the spectral emission characteristic measured by the temperature measuring arrangement 130.
  • the microwave signal 118 and thus also the corresponding microwave radiation 1119 are only output to the control unit 140 when the control unit 125 detects the presence of a pressed state of the electrosurgical instrument 120 and sends a corresponding control signal to the control unit 140.
  • the control unit 140 is designed to interrupt a supply of the antenna arrangement 15 with the microwave signal 118 if a temperature of the tissue area corresponding to the measured spectral emission characteristic is above a predetermined upper limit temperature.
  • the upper limit temperature can be manually input by a user of the electrosurgical system 100 via an input unit 145 connected to the control unit 140.
  • the input takes place in the present case by pressing a button, is realized in non-illustrated embodiments but also by other input means, such as the rotation of a control wheel.
  • the antenna arrangement comprises only a single antenna, which is arranged on the first or second instrument section.
  • the electrosurgical system comprises at least two temperature measuring antennas, which are arranged on the first and / or second instrument section.
  • the antennas and / or the temperature measuring antennas are designed to be detachably connected to the first and / or second instrument section. Furthermore, the antennas and / or the temperature measuring antenna can be arranged at different positions of the first and / or second instrument section.
  • the resistance of the tissue to be treated is determined in a further embodiment which is not shown. This is advantageously done by means of a device connected to two electrodes on the first and / or second instrument. section provided AC voltage. As a result, a tissue information is determined in this embodiment, which allows conclusions on a desiccation of the tissue.
  • FIG. 2 shows a method 200 according to the invention for operating an electrosurgical system.
  • the method 200 comprises in sequence the method steps mentioned below.
  • a microwave signal is applied to an antenna arrangement.
  • a pressure of a tissue region to be treated is provided between a first pressing surface of a first instrument section and a second pressing surface of a second instrument section of an electrosurgical instrument, wherein during the pressing, microwave radiation is provided for heating the tissue region to be treated by the antenna arrangement.
  • a further step 230 comprises measuring a spectral radiation characteristic of the tissue area to be treated during the pressing, in particular during the heating of the tissue area to be treated.
  • the microwave signal is set as a function of the measured spectral emission characteristic.
  • a continuation 250 of the method may be performed with the respective further steps 230 and 240 until the pressure is released by the electrosurgical system in that the first and second instrument sections make a corresponding movement relative to each other.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Otolaryngology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un système électrochirurgical destiné à l'anastomose des tissus corporels, comprenant : un générateur d'hyperfréquences, lequel est raccordé à un dispositif d'antenne et lequel est conçu pour fournir au dispositif d'antenne un signal hyperfréquence prédéterminé ; un instrument électrochirurgical, comportant une première section d'instrument, pourvue d'une première surface de pression et une deuxième section d'instrument, pourvue d'une deuxième surface de pression, les première et deuxième sections d'instrument étant mobiles l'une par rapport à l'autre et lesdites sections étant conçues pour fournir, au moyen d'un mouvement de la première section d'instrument par rapport à la deuxième section d'instrument, une pression d'une surface de pression, disposée entre la première surface de pression et la deuxième surface de pression d'une zone de tissu à traiter et au niveau de la première section d'instrument, l'ensemble d'antenne est agencé et conçu pour chauffer, pendant le fonctionnement du système électrochirurgical, la zone de tissu à traiter, pendant la pression, au moyen de la fourniture d'un rayonnement hyperfréquence ; un dispositif de mesure de température, lequel est conçu pour mesurer, pendant la pression de la zone de tissu à traiter respective, une caractéristique de rayonnement spectrale de ladite zone de tissu à traiter ; une unité de commande, laquelle est raccordée électriquement au dispositif de mesure de température et laquelle est conçue pour ajuster, en fonction de ladite caractéristique de rayonnement spectrale mesurée par le dispositif de mesure de température, le signal hyperfréquence prédéterminé.
PCT/EP2017/073932 2016-09-23 2017-09-21 Système électrochirurgical Ceased WO2018055046A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016218401.6A DE102016218401A1 (de) 2016-09-23 2016-09-23 Elektrochirurgiesystem
DE102016218401.6 2016-09-23

Publications (1)

Publication Number Publication Date
WO2018055046A1 true WO2018055046A1 (fr) 2018-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/073932 Ceased WO2018055046A1 (fr) 2016-09-23 2017-09-21 Système électrochirurgical

Country Status (2)

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DE (1) DE102016218401A1 (fr)
WO (1) WO2018055046A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040857A1 (fr) 1998-02-12 1999-08-19 Consortium Management Services Group, Inc. Suture de tissus biologiques mous par passage d'un courant electrique haute frequence
US20070239260A1 (en) 2006-03-31 2007-10-11 Palanker Daniel V Devices and methods for tissue welding
US20070299488A1 (en) * 2006-06-26 2007-12-27 Carr Kenneth L Integrated heating/sensing catheter apparatus for minimally invasive applications
EP1943973A1 (fr) * 2007-01-12 2008-07-16 AtriCure Inc. Système d'ablation, pince et procédé d'utilisation
WO2008125259A2 (fr) 2007-04-13 2008-10-23 Universität Bern Soudure tissulaire par couplage de nanoparticules d'oxyde de fer superparamagnetiques
US20080300618A1 (en) 2004-03-23 2008-12-04 Michael Eric Gertner Obesity treatment systems
EP2233098A1 (fr) 2009-03-24 2010-09-29 Tyco Healthcare Group, LP Appareil pour l'étanchéité de tissus
US20120101500A1 (en) 2009-07-16 2012-04-26 Celon Ag Medical Instruments Anastomosis ring and anastomosis ring arrangement
US20130116677A1 (en) * 2011-11-08 2013-05-09 Covidien Lp Systems and methods for treatment of premenstrual dysphoric disorders
US20150088125A1 (en) * 2013-09-26 2015-03-26 Covidien Lp Systems and methods for estimating tissue parameters using surgical devices
US20150105765A1 (en) * 2009-06-12 2015-04-16 Advanced Cardiac Therapeutics, Inc. Systems and Methods of Radiometrically Determining a Hot-Spot Temperature of Tissue Being Treated
US20160030111A1 (en) * 2014-07-31 2016-02-04 Covidien Lp Systems and methods for in situ quantification of a thermal environment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9526564B2 (en) * 2012-10-08 2016-12-27 Covidien Lp Electric stapler device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040857A1 (fr) 1998-02-12 1999-08-19 Consortium Management Services Group, Inc. Suture de tissus biologiques mous par passage d'un courant electrique haute frequence
US20080300618A1 (en) 2004-03-23 2008-12-04 Michael Eric Gertner Obesity treatment systems
US20070239260A1 (en) 2006-03-31 2007-10-11 Palanker Daniel V Devices and methods for tissue welding
US20070299488A1 (en) * 2006-06-26 2007-12-27 Carr Kenneth L Integrated heating/sensing catheter apparatus for minimally invasive applications
EP1943973A1 (fr) * 2007-01-12 2008-07-16 AtriCure Inc. Système d'ablation, pince et procédé d'utilisation
WO2008125259A2 (fr) 2007-04-13 2008-10-23 Universität Bern Soudure tissulaire par couplage de nanoparticules d'oxyde de fer superparamagnetiques
EP2233098A1 (fr) 2009-03-24 2010-09-29 Tyco Healthcare Group, LP Appareil pour l'étanchéité de tissus
US20150105765A1 (en) * 2009-06-12 2015-04-16 Advanced Cardiac Therapeutics, Inc. Systems and Methods of Radiometrically Determining a Hot-Spot Temperature of Tissue Being Treated
US20120101500A1 (en) 2009-07-16 2012-04-26 Celon Ag Medical Instruments Anastomosis ring and anastomosis ring arrangement
US20130116677A1 (en) * 2011-11-08 2013-05-09 Covidien Lp Systems and methods for treatment of premenstrual dysphoric disorders
US20150088125A1 (en) * 2013-09-26 2015-03-26 Covidien Lp Systems and methods for estimating tissue parameters using surgical devices
US20160030111A1 (en) * 2014-07-31 2016-02-04 Covidien Lp Systems and methods for in situ quantification of a thermal environment

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Publication number Publication date
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