CA2194071A1 - Non-linear control systems and methods for heating and ablating body tissue - Google Patents

Non-linear control systems and methods for heating and ablating body tissue

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Publication number
CA2194071A1
CA2194071A1 CA002194071A CA2194071A CA2194071A1 CA 2194071 A1 CA2194071 A1 CA 2194071A1 CA 002194071 A CA002194071 A CA 002194071A CA 2194071 A CA2194071 A CA 2194071A CA 2194071 A1 CA2194071 A1 CA 2194071A1
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CA
Canada
Prior art keywords
methods
heating
control systems
body tissue
linear control
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.)
Granted
Application number
CA002194071A
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French (fr)
Other versions
CA2194071C (en
Inventor
Roger A. Stern
Dorin Panescu
David K. Swanson
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Boston Scientific Ltd Barbados
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Individual
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Publication of CA2194071A1 publication Critical patent/CA2194071A1/en
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Publication of CA2194071C publication Critical patent/CA2194071C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Systems and methods employ an energy emitting electrode (16) to heat tissue.
The systems and methods control the application of energy to the electrode (16) using adjustments that take into account, in a non-linear fashion, changes in monitored operating conditions.
CA002194071A 1994-06-27 1995-06-23 Non-linear control systems and methods for heating and ablating body tissue Expired - Fee Related CA2194071C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US26602394A 1994-06-27 1994-06-27
US26715494A 1994-06-28 1994-06-28
US08/267,154 1994-06-28
PCT/US1995/007960 WO1996000528A1 (en) 1994-06-27 1995-06-23 Non-linear control systems and methods for heating and ablating body tissue

Publications (2)

Publication Number Publication Date
CA2194071A1 true CA2194071A1 (en) 1996-01-11
CA2194071C CA2194071C (en) 2005-12-13

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Family Applications (1)

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CA002194071A Expired - Fee Related CA2194071C (en) 1994-06-27 1995-06-23 Non-linear control systems and methods for heating and ablating body tissue

Country Status (8)

Country Link
US (2) US5755715A (en)
EP (1) EP0767628B1 (en)
JP (1) JP3682066B2 (en)
AT (1) ATE257675T1 (en)
CA (1) CA2194071C (en)
DE (1) DE69532447T2 (en)
ES (1) ES2216016T3 (en)
WO (2) WO1996000528A1 (en)

Families Citing this family (307)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5906614A (en) * 1991-11-08 1999-05-25 Ep Technologies, Inc. Tissue heating and ablation systems and methods using predicted temperature for monitoring and control
US6113591A (en) * 1994-06-27 2000-09-05 Ep Technologies, Inc. Systems and methods for sensing sub-surface temperatures in body tissue
US6030379A (en) * 1995-05-01 2000-02-29 Ep Technologies, Inc. Systems and methods for seeking sub-surface temperature conditions during tissue ablation
US6053912A (en) * 1995-05-01 2000-04-25 Ep Techonologies, Inc. Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes
US5837001A (en) * 1995-12-08 1998-11-17 C. R. Bard Radio frequency energy delivery system for multipolar electrode catheters
US5665103A (en) * 1996-03-07 1997-09-09 Scimed Life Systems, Inc. Stent locating device
US5755760A (en) * 1996-03-11 1998-05-26 Medtronic, Inc. Deflectable catheter
EP0847729A1 (en) 1996-12-12 1998-06-17 Sulzer Osypka GmbH Ablation device for intracardiac heart treatment
US6063078A (en) * 1997-03-12 2000-05-16 Medtronic, Inc. Method and apparatus for tissue ablation
US7992572B2 (en) 1998-06-10 2011-08-09 Asthmatx, Inc. Methods of evaluating individuals having reversible obstructive pulmonary disease
US6634363B1 (en) 1997-04-07 2003-10-21 Broncus Technologies, Inc. Methods of treating lungs having reversible obstructive pulmonary disease
US7027869B2 (en) 1998-01-07 2006-04-11 Asthmatx, Inc. Method for treating an asthma attack
US6012457A (en) 1997-07-08 2000-01-11 The Regents Of The University Of California Device and method for forming a circumferential conduction block in a pulmonary vein
US6024740A (en) 1997-07-08 2000-02-15 The Regents Of The University Of California Circumferential ablation device assembly
US5971983A (en) 1997-05-09 1999-10-26 The Regents Of The University Of California Tissue ablation device and method of use
US6514249B1 (en) 1997-07-08 2003-02-04 Atrionix, Inc. Positioning system and method for orienting an ablation element within a pulmonary vein ostium
US6997925B2 (en) * 1997-07-08 2006-02-14 Atrionx, Inc. Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall
US6164283A (en) 1997-07-08 2000-12-26 The Regents Of The University Of California Device and method for forming a circumferential conduction block in a pulmonary vein
US6500174B1 (en) * 1997-07-08 2002-12-31 Atrionix, Inc. Circumferential ablation device assembly and methods of use and manufacture providing an ablative circumferential band along an expandable member
US6245064B1 (en) 1997-07-08 2001-06-12 Atrionix, Inc. Circumferential ablation device assembly
US6652515B1 (en) * 1997-07-08 2003-11-25 Atrionix, Inc. Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall
US6007532A (en) * 1997-08-29 1999-12-28 3M Innovative Properties Company Method and apparatus for detecting loss of contact of biomedical electrodes with patient skin
WO1999017672A1 (en) * 1997-10-06 1999-04-15 Somnus Medical Technologies, Inc. Electro-surgical instrument with a graphical user interface
US6464699B1 (en) 1997-10-10 2002-10-15 Scimed Life Systems, Inc. Method and apparatus for positioning a diagnostic or therapeutic element on body tissue and mask element for use with same
US6645200B1 (en) 1997-10-10 2003-11-11 Scimed Life Systems, Inc. Method and apparatus for positioning a diagnostic or therapeutic element within the body and tip electrode for use with same
ATE423523T1 (en) * 1997-10-23 2009-03-15 Arthrocare Corp ENERGY SUPPLY FOR ELECTROSURGERY IN CONDUCTIVE FLUIDS
US7921855B2 (en) 1998-01-07 2011-04-12 Asthmatx, Inc. Method for treating an asthma attack
US6558378B2 (en) * 1998-05-05 2003-05-06 Cardiac Pacemakers, Inc. RF ablation system and method having automatic temperature control
US6837885B2 (en) 1998-05-22 2005-01-04 Scimed Life Systems, Inc. Surgical probe for supporting inflatable therapeutic devices in contact with tissue in or around body orifices and within tumors
US8181656B2 (en) 1998-06-10 2012-05-22 Asthmatx, Inc. Methods for treating airways
US7198635B2 (en) 2000-10-17 2007-04-03 Asthmatx, Inc. Modification of airways by application of energy
US6245065B1 (en) 1998-09-10 2001-06-12 Scimed Life Systems, Inc. Systems and methods for controlling power in an electrosurgical probe
US6183468B1 (en) 1998-09-10 2001-02-06 Scimed Life Systems, Inc. Systems and methods for controlling power in an electrosurgical probe
WO2000015130A2 (en) 1998-09-10 2000-03-23 Scimed Life Systems, Inc. Systems for controlling an ablation process performed with a heart electrocatheter
US6123702A (en) 1998-09-10 2000-09-26 Scimed Life Systems, Inc. Systems and methods for controlling power in an electrosurgical probe
US7137980B2 (en) 1998-10-23 2006-11-21 Sherwood Services Ag Method and system for controlling output of RF medical generator
US7364577B2 (en) 2002-02-11 2008-04-29 Sherwood Services Ag Vessel sealing system
US7901400B2 (en) * 1998-10-23 2011-03-08 Covidien Ag Method and system for controlling output of RF medical generator
US6607502B1 (en) 1998-11-25 2003-08-19 Atrionix, Inc. Apparatus and method incorporating an ultrasound transducer onto a delivery member
EP1156940A4 (en) 1999-02-10 2006-02-08 Erik Zapletal Balanced suspension system
US6217528B1 (en) 1999-02-11 2001-04-17 Scimed Life Systems, Inc. Loop structure having improved tissue contact capability
US6758830B1 (en) * 1999-05-11 2004-07-06 Atrionix, Inc. Catheter positioning system
ES2279757T3 (en) 1999-05-11 2007-09-01 Atrionix, Inc. BALL ANCHORING THREAD.
US6402741B1 (en) * 1999-10-08 2002-06-11 Sherwood Services Ag Current and status monitor
US6645199B1 (en) 1999-11-22 2003-11-11 Scimed Life Systems, Inc. Loop structures for supporting diagnostic and therapeutic elements contact with body tissue and expandable push devices for use with same
WO2001037723A2 (en) 1999-11-22 2001-05-31 Boston Scientific Limited Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue
US7097641B1 (en) 1999-12-09 2006-08-29 Cryocath Technologies Inc. Catheter with cryogenic and heating ablation
US6558385B1 (en) 2000-09-22 2003-05-06 Tissuelink Medical, Inc. Fluid-assisted medical device
US6689131B2 (en) 2001-03-08 2004-02-10 Tissuelink Medical, Inc. Electrosurgical device having a tissue reduction sensor
US6702810B2 (en) 2000-03-06 2004-03-09 Tissuelink Medical Inc. Fluid delivery system and controller for electrosurgical devices
US8048070B2 (en) 2000-03-06 2011-11-01 Salient Surgical Technologies, Inc. Fluid-assisted medical devices, systems and methods
US7811282B2 (en) 2000-03-06 2010-10-12 Salient Surgical Technologies, Inc. Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof
US8251070B2 (en) 2000-03-27 2012-08-28 Asthmatx, Inc. Methods for treating airways
CA2405348A1 (en) 2000-04-13 2001-11-01 Ocean Spray Cranberries, Inc. Novel compositions derived from cranberry and grapefruit and therapeutic uses therefor
WO2001082811A1 (en) 2000-04-27 2001-11-08 Medtronic, Inc. System and method for assessing transmurality of ablation lesions
EP1296598B1 (en) * 2000-05-16 2007-11-14 Atrionix, Inc. Apparatus incorporating an ultrasound transducer on a delivery member
AU6682401A (en) 2000-06-13 2001-12-24 Atrionix Inc Surgical ablation probe for forming a circumferential lesion
US6942661B2 (en) 2000-08-30 2005-09-13 Boston Scientific Scimed, Inc. Fluid cooled apparatus for supporting diagnostic and therapeutic elements in contact with tissue
US7104987B2 (en) 2000-10-17 2006-09-12 Asthmatx, Inc. Control system and process for application of energy to airway walls and other mediums
US6827714B2 (en) 2001-03-07 2004-12-07 Scimed Life Systems, Inc. Internal indifferent electrode device for use with lesion creation apparatus and method of forming lesions using the same
US20030040670A1 (en) * 2001-06-15 2003-02-27 Assaf Govari Method for measuring temperature and of adjusting for temperature sensitivity with a medical device having a position sensor
AU2002324574A1 (en) * 2001-07-27 2003-02-17 Wit Ip Corporation Methods for treating prostatitis
US7785324B2 (en) 2005-02-25 2010-08-31 Endoscopic Technologies, Inc. (Estech) Clamp based lesion formation apparatus and methods configured to protect non-target tissue
US7753908B2 (en) 2002-02-19 2010-07-13 Endoscopic Technologies, Inc. (Estech) Apparatus for securing an electrophysiology probe to a clamp
US7674258B2 (en) 2002-09-24 2010-03-09 Endoscopic Technologies, Inc. (ESTECH, Inc.) Electrophysiology electrode having multiple power connections and electrophysiology devices including the same
US6932816B2 (en) 2002-02-19 2005-08-23 Boston Scientific Scimed, Inc. Apparatus for converting a clamp into an electrophysiology device
US20030158548A1 (en) 2002-02-19 2003-08-21 Phan Huy D. Surgical system including clamp and apparatus for securing an energy transmission device to the clamp and method of converting a clamp into an electrophysiology device
US7258688B1 (en) * 2002-04-16 2007-08-21 Baylis Medical Company Inc. Computerized electrical signal generator
US7008417B2 (en) 2002-04-22 2006-03-07 Medtronics, Inc. Detecting coagulum formation
JP4490807B2 (en) 2002-05-06 2010-06-30 コヴィディエン アクチェンゲゼルシャフト System for electrically detecting blood and controlling the generator during electrosurgical procedures
US6786202B2 (en) * 2002-09-24 2004-09-07 Caterpillar Inc Hydraulic pump circuit
WO2004039416A2 (en) 2002-10-29 2004-05-13 Tissuelink Medical, Inc. Fluid-assisted electrosurgical scissors and methods
US7044948B2 (en) 2002-12-10 2006-05-16 Sherwood Services Ag Circuit for controlling arc energy from an electrosurgical generator
US7131445B2 (en) * 2002-12-23 2006-11-07 Gyrus Medical Limited Electrosurgical method and apparatus
US20040158237A1 (en) * 2003-02-11 2004-08-12 Marwan Abboud Multi-energy ablation station
US7357800B2 (en) * 2003-02-14 2008-04-15 Boston Scientific Scimed, Inc. Power supply and control apparatus and electrophysiology systems including the same
WO2004080278A2 (en) * 2003-03-06 2004-09-23 Tissuelink Medical, Inc. Fluid -assisted medical devices, systems and methods
WO2004083797A2 (en) * 2003-03-14 2004-09-30 Thermosurgery Technologies, Inc. Hyperthermia treatment system
US20040186467A1 (en) * 2003-03-21 2004-09-23 Swanson David K. Apparatus for maintaining contact between diagnostic and therapeutic elements and tissue and systems including the same
US8012150B2 (en) 2003-05-01 2011-09-06 Covidien Ag Method and system for programming and controlling an electrosurgical generator system
US20040226556A1 (en) 2003-05-13 2004-11-18 Deem Mark E. Apparatus for treating asthma using neurotoxin
DE202004021944U1 (en) 2003-09-12 2013-07-16 Vessix Vascular, Inc. Selectable eccentric remodeling and / or ablation of atherosclerotic material
US7435248B2 (en) * 2003-09-26 2008-10-14 Boston Scientific Scimed, Inc. Medical probes for creating and diagnosing circumferential lesions within or around the ostium of a vessel
ES2372045T3 (en) 2003-10-23 2012-01-13 Covidien Ag REDUNDANT TEMPERATURE MONITORING IN ELECTROCHURGICAL SYSTEMS TO ATTENATE SAFETY.
US8104956B2 (en) 2003-10-23 2012-01-31 Covidien Ag Thermocouple measurement circuit
US7396336B2 (en) 2003-10-30 2008-07-08 Sherwood Services Ag Switched resonant ultrasonic power amplifier system
US7131860B2 (en) 2003-11-20 2006-11-07 Sherwood Services Ag Connector systems for electrosurgical generator
US7300435B2 (en) * 2003-11-21 2007-11-27 Sherwood Services Ag Automatic control system for an electrosurgical generator
US8052676B2 (en) * 2003-12-02 2011-11-08 Boston Scientific Scimed, Inc. Surgical methods and apparatus for stimulating tissue
US8002770B2 (en) 2003-12-02 2011-08-23 Endoscopic Technologies, Inc. (Estech) Clamp based methods and apparatus for forming lesions in tissue and confirming whether a therapeutic lesion has been formed
US7608072B2 (en) 2003-12-02 2009-10-27 Boston Scientific Scimed, Inc. Surgical methods and apparatus for maintaining contact between tissue and electrophysiology elements and confirming whether a therapeutic lesion has been formed
US7727232B1 (en) 2004-02-04 2010-06-01 Salient Surgical Technologies, Inc. Fluid-assisted medical devices and methods
US7766905B2 (en) 2004-02-12 2010-08-03 Covidien Ag Method and system for continuity testing of medical electrodes
US7780662B2 (en) 2004-03-02 2010-08-24 Covidien Ag Vessel sealing system using capacitive RF dielectric heating
CN103143099B (en) 2004-08-20 2018-04-20 菲舍尔和佩克尔保健有限公司 For measuring the device for the characteristic for being supplied to the gas of patient
US7549988B2 (en) 2004-08-30 2009-06-23 Boston Scientific Scimed, Inc. Hybrid lesion formation apparatus, systems and methods
US9974607B2 (en) 2006-10-18 2018-05-22 Vessix Vascular, Inc. Inducing desirable temperature effects on body tissue
US8396548B2 (en) 2008-11-14 2013-03-12 Vessix Vascular, Inc. Selective drug delivery in a lumen
US9713730B2 (en) 2004-09-10 2017-07-25 Boston Scientific Scimed, Inc. Apparatus and method for treatment of in-stent restenosis
US7628786B2 (en) 2004-10-13 2009-12-08 Covidien Ag Universal foot switch contact port
US8409191B2 (en) * 2004-11-04 2013-04-02 Boston Scientific Scimed, Inc. Preshaped ablation catheter for ablating pulmonary vein ostia within the heart
JP2006180936A (en) * 2004-12-24 2006-07-13 Olympus Medical Systems Corp Heating treatment device
US7727231B2 (en) 2005-01-08 2010-06-01 Boston Scientific Scimed, Inc. Apparatus and methods for forming lesions in tissue and applying stimulation energy to tissue in which lesions are formed
US7776033B2 (en) * 2005-01-08 2010-08-17 Boston Scientific Scimed, Inc. Wettable structures including conductive fibers and apparatus including the same
US7862561B2 (en) * 2005-01-08 2011-01-04 Boston Scientific Scimed, Inc. Clamp based lesion formation apparatus with variable spacing structures
US7114197B2 (en) * 2005-01-14 2006-10-03 Louis Garneau Sport Inc. Adjustable stabilization strap apparatus
US7862562B2 (en) * 2005-02-25 2011-01-04 Boston Scientific Scimed, Inc. Wrap based lesion formation apparatus and methods configured to protect non-target tissue
US9474564B2 (en) 2005-03-31 2016-10-25 Covidien Ag Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator
EP2727547B1 (en) 2005-04-21 2020-11-18 Boston Scientific Scimed, Inc. Devices for energy delivery
US20060247522A1 (en) * 2005-04-28 2006-11-02 Boston Scientific Scimed, Inc. Magnetic navigation systems with dynamic mechanically manipulatable catheters
CA2607935C (en) 2005-05-05 2014-07-08 Boston Scientific Limited Preshaped localization catheter and system for graphically reconstructing pulmonary vein ostia
US7442190B2 (en) * 2005-05-13 2008-10-28 Cryocath Technologies Inc. Contact assessment of balloon catheters
US8932208B2 (en) 2005-05-26 2015-01-13 Maquet Cardiovascular Llc Apparatus and methods for performing minimally-invasive surgical procedures
US8016822B2 (en) * 2005-05-28 2011-09-13 Boston Scientific Scimed, Inc. Fluid injecting devices and methods and apparatus for maintaining contact between fluid injecting devices and tissue
US7655003B2 (en) 2005-06-22 2010-02-02 Smith & Nephew, Inc. Electrosurgical power control
US8945151B2 (en) 2005-07-13 2015-02-03 Atricure, Inc. Surgical clip applicator and apparatus including the same
US8721634B2 (en) * 2005-07-21 2014-05-13 Covidien Lp Apparatus and method for ensuring thermal treatment of a hollow anatomical structure
US20070073286A1 (en) * 2005-09-29 2007-03-29 Dorin Panescu Method and apparatus for an ocular procedure
US8734438B2 (en) 2005-10-21 2014-05-27 Covidien Ag Circuit and method for reducing stored energy in an electrosurgical generator
US8696656B2 (en) 2005-11-18 2014-04-15 Medtronic Cryocath Lp System and method for monitoring bioimpedance and respiration
US7842031B2 (en) * 2005-11-18 2010-11-30 Medtronic Cryocath Lp Bioimpedance measurement system and method
US8603084B2 (en) 2005-12-06 2013-12-10 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for assessing the formation of a lesion in tissue
BRPI0621018A2 (en) 2005-12-06 2011-11-29 St Jude Medical Atrial Fibrill Div method and instrument for displaying catheter electrode-tissue contact in electro-anatomical mapping and navigation system
US9492226B2 (en) 2005-12-06 2016-11-15 St. Jude Medical, Atrial Fibrillation Division, Inc. Graphical user interface for real-time RF lesion depth display
US8406866B2 (en) 2005-12-06 2013-03-26 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for assessing coupling between an electrode and tissue
US8998890B2 (en) 2005-12-06 2015-04-07 St. Jude Medical, Atrial Fibrillation Division, Inc. Assessment of electrode coupling for tissue ablation
US9254163B2 (en) 2005-12-06 2016-02-09 St. Jude Medical, Atrial Fibrillation Division, Inc. Assessment of electrode coupling for tissue ablation
US8403925B2 (en) 2006-12-06 2013-03-26 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for assessing lesions in tissue
US20090177111A1 (en) * 2006-12-06 2009-07-09 Miller Stephan P System and method for displaying contact between a catheter and tissue
US10362959B2 (en) 2005-12-06 2019-07-30 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for assessing the proximity of an electrode to tissue in a body
US7947039B2 (en) 2005-12-12 2011-05-24 Covidien Ag Laparoscopic apparatus for performing electrosurgical procedures
US8876746B2 (en) 2006-01-06 2014-11-04 Arthrocare Corporation Electrosurgical system and method for treating chronic wound tissue
WO2007099460A2 (en) 2006-01-17 2007-09-07 Endymion Medical Ltd. Electrosurgical methods and devices employing phase-controlled radiofrequency energy
US8685016B2 (en) 2006-01-24 2014-04-01 Covidien Ag System and method for tissue sealing
CA2574935A1 (en) 2006-01-24 2007-07-24 Sherwood Services Ag A method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
US8216223B2 (en) 2006-01-24 2012-07-10 Covidien Ag System and method for tissue sealing
AU2007200299B2 (en) 2006-01-24 2012-11-15 Covidien Ag System and method for tissue sealing
US8147485B2 (en) 2006-01-24 2012-04-03 Covidien Ag System and method for tissue sealing
US7513896B2 (en) 2006-01-24 2009-04-07 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
CA2574934C (en) 2006-01-24 2015-12-29 Sherwood Services Ag System and method for closed loop monitoring of monopolar electrosurgical apparatus
US9186200B2 (en) 2006-01-24 2015-11-17 Covidien Ag System and method for tissue sealing
US7651493B2 (en) 2006-03-03 2010-01-26 Covidien Ag System and method for controlling electrosurgical snares
US7648499B2 (en) 2006-03-21 2010-01-19 Covidien Ag System and method for generating radio frequency energy
US7651492B2 (en) 2006-04-24 2010-01-26 Covidien Ag Arc based adaptive control system for an electrosurgical unit
US8019435B2 (en) 2006-05-02 2011-09-13 Boston Scientific Scimed, Inc. Control of arterial smooth muscle tone
US8753334B2 (en) 2006-05-10 2014-06-17 Covidien Ag System and method for reducing leakage current in an electrosurgical generator
CN101610735B (en) 2006-06-28 2015-07-01 美敦力Af卢森堡公司 Methods and systems for thermally-induced renal neuromodulation
US7731717B2 (en) 2006-08-08 2010-06-08 Covidien Ag System and method for controlling RF output during tissue sealing
US8034049B2 (en) 2006-08-08 2011-10-11 Covidien Ag System and method for measuring initial tissue impedance
US7794457B2 (en) 2006-09-28 2010-09-14 Covidien Ag Transformer for RF voltage sensing
CA2666663C (en) 2006-10-18 2016-02-09 Minnow Medical, Inc. System for inducing desirable temperature effects on body tissue
EP2455036B1 (en) 2006-10-18 2015-07-15 Vessix Vascular, Inc. Tuned RF energy and electrical tissue characterization for selective treatment of target tissues
US8192424B2 (en) 2007-01-05 2012-06-05 Arthrocare Corporation Electrosurgical system with suction control apparatus, system and method
WO2008125962A2 (en) * 2007-03-01 2008-10-23 Endymed Medical Ltd. Electrosurgical methods and devices employing semiconductor chips
US8777941B2 (en) 2007-05-10 2014-07-15 Covidien Lp Adjustable impedance electrosurgical electrodes
US7834484B2 (en) 2007-07-16 2010-11-16 Tyco Healthcare Group Lp Connection cable and method for activating a voltage-controlled generator
US9403029B2 (en) * 2007-07-18 2016-08-02 Visualase, Inc. Systems and methods for thermal therapy
AU2008279121B2 (en) * 2007-07-24 2013-09-19 Boston Scientific Scimed, Inc. System and method for controlling power based on impedance detection, such as controlling power to tissue treatment devices
US8394091B2 (en) * 2007-08-24 2013-03-12 Boston Scientific Scimed, Inc. Magnetically steerable catheter assembly
US8216220B2 (en) 2007-09-07 2012-07-10 Tyco Healthcare Group Lp System and method for transmission of combined data stream
US8512332B2 (en) 2007-09-21 2013-08-20 Covidien Lp Real-time arc control in electrosurgical generators
WO2009045265A1 (en) 2007-10-05 2009-04-09 Maquet Cardiovascular, Llc Devices and methods for minimally-invasive surgical procedures
US9204927B2 (en) 2009-05-13 2015-12-08 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for presenting information representative of lesion formation in tissue during an ablation procedure
US8290578B2 (en) 2007-12-28 2012-10-16 St. Jude Medical, Atrial Fibrillation Division, Inc. Method and apparatus for complex impedance compensation
US9358063B2 (en) 2008-02-14 2016-06-07 Arthrocare Corporation Ablation performance indicator for electrosurgical devices
US8483831B1 (en) 2008-02-15 2013-07-09 Holaira, Inc. System and method for bronchial dilation
US8257349B2 (en) * 2008-03-28 2012-09-04 Tyco Healthcare Group Lp Electrosurgical apparatus with predictive RF source control
EP2319447B1 (en) 2008-03-31 2012-08-22 Applied Medical Resources Corporation Electrosurgical tool with jaws actuatable by a force regulation mechanism
JP2011519699A (en) 2008-05-09 2011-07-14 インノブアトイブエ プルモナルイ ソルウトイオンス,インコーポレイティッド Systems, assemblies and methods for treatment of bronchial trees
US8226639B2 (en) 2008-06-10 2012-07-24 Tyco Healthcare Group Lp System and method for output control of electrosurgical generator
DE102008050635A1 (en) * 2008-10-07 2010-04-15 Erbe Elektromedizin Gmbh Method and apparatus for controlling a cooled RF ablation probe
WO2010056745A1 (en) 2008-11-17 2010-05-20 Minnow Medical, Inc. Selective accumulation of energy with or without knowledge of tissue topography
US8900150B2 (en) 2008-12-30 2014-12-02 St. Jude Medical, Atrial Fibrillation Division, Inc. Intracardiac imaging system utilizing a multipurpose catheter
US9610118B2 (en) 2008-12-31 2017-04-04 St. Jude Medical, Atrial Fibrillation Division, Inc. Method and apparatus for the cancellation of motion artifacts in medical interventional navigation
US8262652B2 (en) 2009-01-12 2012-09-11 Tyco Healthcare Group Lp Imaginary impedance process monitoring and intelligent shut-off
US9226791B2 (en) 2012-03-12 2016-01-05 Advanced Cardiac Therapeutics, Inc. Systems for temperature-controlled ablation using radiometric feedback
US8926605B2 (en) 2012-02-07 2015-01-06 Advanced Cardiac Therapeutics, Inc. Systems and methods for radiometrically measuring temperature during tissue ablation
US9277961B2 (en) 2009-06-12 2016-03-08 Advanced Cardiac Therapeutics, Inc. Systems and methods of radiometrically determining a hot-spot temperature of tissue being treated
US8954161B2 (en) 2012-06-01 2015-02-10 Advanced Cardiac Therapeutics, Inc. Systems and methods for radiometrically measuring temperature and detecting tissue contact prior to and during tissue ablation
US8257350B2 (en) 2009-06-17 2012-09-04 Arthrocare Corporation Method and system of an electrosurgical controller with wave-shaping
US8388614B2 (en) 2009-09-29 2013-03-05 Covidien Lp Return electrode temperature prediction
KR101722290B1 (en) 2009-10-27 2017-03-31 호라이라 인코포레이티드 Delivery devices with coolable energy emitting assemblies
CN102711645B (en) 2009-11-11 2016-12-28 赫莱拉公司 For processing tissue and controlling narrow system and device
US8911439B2 (en) 2009-11-11 2014-12-16 Holaira, Inc. Non-invasive and minimally invasive denervation methods and systems for performing the same
US8372067B2 (en) 2009-12-09 2013-02-12 Arthrocare Corporation Electrosurgery irrigation primer systems and methods
US20110172659A1 (en) * 2010-01-13 2011-07-14 Vivant Medical, Inc. Ablation Device With User Interface at Device Handle, System Including Same, and Method of Ablating Tissue Using Same
KR20130108067A (en) 2010-04-09 2013-10-02 베식스 바스큘라 인코포레이티드 Power generating and control apparatus for the treatment of tissue
US9192790B2 (en) 2010-04-14 2015-11-24 Boston Scientific Scimed, Inc. Focused ultrasonic renal denervation
US8473067B2 (en) 2010-06-11 2013-06-25 Boston Scientific Scimed, Inc. Renal denervation and stimulation employing wireless vascular energy transfer arrangement
US8840609B2 (en) 2010-07-23 2014-09-23 Conmed Corporation Tissue fusion system and method of performing a functional verification test
US9463062B2 (en) 2010-07-30 2016-10-11 Boston Scientific Scimed, Inc. Cooled conductive balloon RF catheter for renal nerve ablation
US9155589B2 (en) 2010-07-30 2015-10-13 Boston Scientific Scimed, Inc. Sequential activation RF electrode set for renal nerve ablation
US9408661B2 (en) 2010-07-30 2016-08-09 Patrick A. Haverkost RF electrodes on multiple flexible wires for renal nerve ablation
US9358365B2 (en) 2010-07-30 2016-06-07 Boston Scientific Scimed, Inc. Precision electrode movement control for renal nerve ablation
US9084609B2 (en) 2010-07-30 2015-07-21 Boston Scientific Scime, Inc. Spiral balloon catheter for renal nerve ablation
ES2664081T3 (en) 2010-10-01 2018-04-18 Applied Medical Resources Corporation Electrosurgical system with a radio frequency amplifier and with means for adapting to the separation between electrodes
EP3449856B1 (en) 2010-10-25 2023-06-28 Medtronic Ardian Luxembourg S.à.r.l. Device for evaluation and feedback of neuromodulation treatment
US8974451B2 (en) 2010-10-25 2015-03-10 Boston Scientific Scimed, Inc. Renal nerve ablation using conductive fluid jet and RF energy
US9220558B2 (en) 2010-10-27 2015-12-29 Boston Scientific Scimed, Inc. RF renal denervation catheter with multiple independent electrodes
US9028485B2 (en) 2010-11-15 2015-05-12 Boston Scientific Scimed, Inc. Self-expanding cooling electrode for renal nerve ablation
US9089350B2 (en) 2010-11-16 2015-07-28 Boston Scientific Scimed, Inc. Renal denervation catheter with RF electrode and integral contrast dye injection arrangement
US9668811B2 (en) 2010-11-16 2017-06-06 Boston Scientific Scimed, Inc. Minimally invasive access for renal nerve ablation
US9326751B2 (en) 2010-11-17 2016-05-03 Boston Scientific Scimed, Inc. Catheter guidance of external energy for renal denervation
US9060761B2 (en) 2010-11-18 2015-06-23 Boston Scientific Scime, Inc. Catheter-focused magnetic field induced renal nerve ablation
US9023034B2 (en) 2010-11-22 2015-05-05 Boston Scientific Scimed, Inc. Renal ablation electrode with force-activatable conduction apparatus
US9192435B2 (en) 2010-11-22 2015-11-24 Boston Scientific Scimed, Inc. Renal denervation catheter with cooled RF electrode
US20120157993A1 (en) 2010-12-15 2012-06-21 Jenson Mark L Bipolar Off-Wall Electrode Device for Renal Nerve Ablation
US9737353B2 (en) 2010-12-16 2017-08-22 Biosense Webster (Israel) Ltd. System for controlling tissue ablation using temperature sensors
US9220561B2 (en) 2011-01-19 2015-12-29 Boston Scientific Scimed, Inc. Guide-compatible large-electrode catheter for renal nerve ablation with reduced arterial injury
US9131597B2 (en) 2011-02-02 2015-09-08 Arthrocare Corporation Electrosurgical system and method for treating hard body tissue
WO2013013156A2 (en) 2011-07-20 2013-01-24 Boston Scientific Scimed, Inc. Percutaneous devices and methods to visualize, target and ablate nerves
JP6106669B2 (en) 2011-07-22 2017-04-05 ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. A neuromodulation system having a neuromodulation element that can be placed in a helical guide
US10201385B2 (en) 2011-09-01 2019-02-12 Biosense Webster (Israel) Ltd. Catheter adapted for direct tissue contact
US8900228B2 (en) 2011-09-01 2014-12-02 Biosense Webster (Israel) Ltd. Catheter adapted for direct tissue contact and pressure sensing
EP2765942B1 (en) 2011-10-10 2016-02-24 Boston Scientific Scimed, Inc. Medical devices including ablation electrodes
EP2765940B1 (en) 2011-10-11 2015-08-26 Boston Scientific Scimed, Inc. Off-wall electrode device for nerve modulation
US9420955B2 (en) 2011-10-11 2016-08-23 Boston Scientific Scimed, Inc. Intravascular temperature monitoring system and method
US9364284B2 (en) 2011-10-12 2016-06-14 Boston Scientific Scimed, Inc. Method of making an off-wall spacer cage
EP2768563B1 (en) 2011-10-18 2016-11-09 Boston Scientific Scimed, Inc. Deflectable medical devices
EP2768568B1 (en) 2011-10-18 2020-05-06 Boston Scientific Scimed, Inc. Integrated crossing balloon catheter
WO2013070724A1 (en) 2011-11-08 2013-05-16 Boston Scientific Scimed, Inc. Ostial renal nerve ablation
EP2779929A1 (en) 2011-11-15 2014-09-24 Boston Scientific Scimed, Inc. Device and methods for renal nerve modulation monitoring
US9119632B2 (en) 2011-11-21 2015-09-01 Boston Scientific Scimed, Inc. Deflectable renal nerve ablation catheter
US9265969B2 (en) 2011-12-21 2016-02-23 Cardiac Pacemakers, Inc. Methods for modulating cell function
WO2013096920A1 (en) 2011-12-23 2013-06-27 Vessix Vascular, Inc. Methods and apparatuses for remodeling tissue of or adjacent to a body passage
WO2013101452A1 (en) 2011-12-28 2013-07-04 Boston Scientific Scimed, Inc. Device and methods for nerve modulation using a novel ablation catheter with polymeric ablative elements
US9050106B2 (en) 2011-12-29 2015-06-09 Boston Scientific Scimed, Inc. Off-wall electrode device and methods for nerve modulation
US9375250B2 (en) 2012-04-09 2016-06-28 Covidien Lp Method for employing single fault safe redundant signals
US10660703B2 (en) 2012-05-08 2020-05-26 Boston Scientific Scimed, Inc. Renal nerve modulation devices
EP3868321B1 (en) 2012-06-04 2022-11-16 Boston Scientific Scimed, Inc. Systems for treating tissue of a passageway within a body
US9592086B2 (en) 2012-07-24 2017-03-14 Boston Scientific Scimed, Inc. Electrodes for tissue treatment
US10321946B2 (en) 2012-08-24 2019-06-18 Boston Scientific Scimed, Inc. Renal nerve modulation devices with weeping RF ablation balloons
CN104780859B (en) 2012-09-17 2017-07-25 波士顿科学西美德公司 Self-positioning electrode system and method for renal regulation
US10398464B2 (en) 2012-09-21 2019-09-03 Boston Scientific Scimed, Inc. System for nerve modulation and innocuous thermal gradient nerve block
US10549127B2 (en) 2012-09-21 2020-02-04 Boston Scientific Scimed, Inc. Self-cooling ultrasound ablation catheter
CN104869930B (en) 2012-10-10 2020-12-25 波士顿科学国际有限公司 Renal neuromodulation apparatus and methods
US9272132B2 (en) 2012-11-02 2016-03-01 Boston Scientific Scimed, Inc. Medical device for treating airways and related methods of use
WO2014071372A1 (en) 2012-11-05 2014-05-08 Boston Scientific Scimed, Inc. Devices for delivering energy to body lumens
US9445725B2 (en) 2012-12-17 2016-09-20 Biosense Webster (Israel) Ltd. Irrigated catheter tip with temperature sensor array
US9398933B2 (en) 2012-12-27 2016-07-26 Holaira, Inc. Methods for improving drug efficacy including a combination of drug administration and nerve modulation
US9713489B2 (en) 2013-03-07 2017-07-25 Arthrocare Corporation Electrosurgical methods and systems
US9693818B2 (en) 2013-03-07 2017-07-04 Arthrocare Corporation Methods and systems related to electrosurgical wands
WO2014163987A1 (en) 2013-03-11 2014-10-09 Boston Scientific Scimed, Inc. Medical devices for modulating nerves
US9693821B2 (en) 2013-03-11 2017-07-04 Boston Scientific Scimed, Inc. Medical devices for modulating nerves
US9808311B2 (en) 2013-03-13 2017-11-07 Boston Scientific Scimed, Inc. Deflectable medical devices
US9801678B2 (en) 2013-03-13 2017-10-31 Arthrocare Corporation Method and system of controlling conductive fluid flow during an electrosurgical procedure
US9703317B2 (en) * 2013-03-14 2017-07-11 Biosense Webster (Israel) Ltd. Dongle with shape memory
US10265122B2 (en) 2013-03-15 2019-04-23 Boston Scientific Scimed, Inc. Nerve ablation devices and related methods of use
WO2014149690A2 (en) 2013-03-15 2014-09-25 Boston Scientific Scimed, Inc. Medical devices and methods for treatment of hypertension that utilize impedance compensation
EP2967734B1 (en) 2013-03-15 2019-05-15 Boston Scientific Scimed, Inc. Methods and apparatuses for remodeling tissue of or adjacent to a body passage
US9504516B2 (en) 2013-05-31 2016-11-29 Covidien LLP Gain compensation for a full bridge inverter
CN105473092B (en) 2013-06-21 2019-05-17 波士顿科学国际有限公司 The medical instrument for renal nerve ablation with rotatable shaft
JP2016523147A (en) 2013-06-21 2016-08-08 ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. Renal denervation balloon catheter with a riding-type electrode support
US9707036B2 (en) 2013-06-25 2017-07-18 Boston Scientific Scimed, Inc. Devices and methods for nerve modulation using localized indifferent electrodes
AU2014284558B2 (en) 2013-07-01 2017-08-17 Boston Scientific Scimed, Inc. Medical devices for renal nerve ablation
US10660698B2 (en) 2013-07-11 2020-05-26 Boston Scientific Scimed, Inc. Devices and methods for nerve modulation
WO2015006573A1 (en) 2013-07-11 2015-01-15 Boston Scientific Scimed, Inc. Medical device with stretchable electrode assemblies
CN105682594B (en) 2013-07-19 2018-06-22 波士顿科学国际有限公司 Helical bipolar electrodes renal denervation dominates air bag
EP3024406B1 (en) 2013-07-22 2019-06-19 Boston Scientific Scimed, Inc. Medical devices for renal nerve ablation
JP6122217B2 (en) 2013-07-22 2017-04-26 ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. Renal nerve ablation medical device
US9872719B2 (en) 2013-07-24 2018-01-23 Covidien Lp Systems and methods for generating electrosurgical energy using a multistage power converter
US9655670B2 (en) 2013-07-29 2017-05-23 Covidien Lp Systems and methods for measuring tissue impedance through an electrosurgical cable
JP5816774B2 (en) * 2013-08-02 2015-11-18 オリンパス株式会社 Biological tissue joining system, treatment instrument control device, and operating method of biological tissue joining system
CN110547865B (en) 2013-08-09 2022-10-04 波士顿科学国际有限公司 Expandable catheter and related methods of manufacture and use
US10722300B2 (en) 2013-08-22 2020-07-28 Boston Scientific Scimed, Inc. Flexible circuit having improved adhesion to a renal nerve modulation balloon
EP3041425B1 (en) 2013-09-04 2022-04-13 Boston Scientific Scimed, Inc. Radio frequency (rf) balloon catheter having flushing and cooling capability
WO2015038947A1 (en) 2013-09-13 2015-03-19 Boston Scientific Scimed, Inc. Ablation balloon with vapor deposited cover layer
US11246654B2 (en) 2013-10-14 2022-02-15 Boston Scientific Scimed, Inc. Flexible renal nerve ablation devices and related methods of use and manufacture
CN105592778B (en) 2013-10-14 2019-07-23 波士顿科学医学有限公司 High-resolution cardiac mapping electrod-array conduit
US9770606B2 (en) 2013-10-15 2017-09-26 Boston Scientific Scimed, Inc. Ultrasound ablation catheter with cooling infusion and centering basket
CN105636537B (en) 2013-10-15 2018-08-17 波士顿科学国际有限公司 Medical instrument sacculus
WO2015057961A1 (en) 2013-10-18 2015-04-23 Boston Scientific Scimed, Inc. Balloon catheters with flexible conducting wires and related methods of use and manufacture
US10433902B2 (en) 2013-10-23 2019-10-08 Medtronic Ardian Luxembourg S.A.R.L. Current control methods and systems
WO2015061457A1 (en) 2013-10-25 2015-04-30 Boston Scientific Scimed, Inc. Embedded thermocouple in denervation flex circuit
JP6203951B2 (en) 2013-10-31 2017-09-27 ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. Medical device for high resolution mapping using local matching
US10076258B2 (en) 2013-11-01 2018-09-18 Boston Scientific Scimed, Inc. Cardiac mapping using latency interpolation
JP6382989B2 (en) 2014-01-06 2018-08-29 ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. Medical device with tear resistant flexible circuit assembly
US11000679B2 (en) 2014-02-04 2021-05-11 Boston Scientific Scimed, Inc. Balloon protection and rewrapping devices and related methods of use
CN106572881B (en) 2014-02-04 2019-07-26 波士顿科学国际有限公司 Substitution of the heat sensor on bipolar electrode is placed
JP2017506572A (en) 2014-03-07 2017-03-09 ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. Medical device for mapping heart tissue
WO2015138167A1 (en) 2014-03-11 2015-09-17 Boston Scientific Scimed, Inc. Medical devices for mapping cardiac tissue
US10610292B2 (en) 2014-04-25 2020-04-07 Medtronic Ardian Luxembourg S.A.R.L. Devices, systems, and methods for monitoring and/or controlling deployment of a neuromodulation element within a body lumen and related technology
US20150317899A1 (en) 2014-05-01 2015-11-05 Covidien Lp System and method for using rfid tags to determine sterilization of devices
JP6573663B2 (en) 2014-05-16 2019-09-11 アプライド メディカル リソーシーズ コーポレイション Electrosurgical system
AU2015266619B2 (en) 2014-05-30 2020-02-06 Applied Medical Resources Corporation Electrosurgical instrument for fusing and cutting tissue and an electrosurgical generator
WO2016081611A1 (en) 2014-11-19 2016-05-26 Advanced Cardiac Therapeutics, Inc. High-resolution mapping of tissue with pacing
CA2967824A1 (en) 2014-11-19 2016-05-26 Advanced Cardiac Therapeutics, Inc. Ablation devices, systems and methods of using a high-resolution electrode assembly
EP3808298B1 (en) 2014-11-19 2023-07-05 EPiX Therapeutics, Inc. Systems for high-resolution mapping of tissue
EP3236870B1 (en) 2014-12-23 2019-11-06 Applied Medical Resources Corporation Bipolar electrosurgical sealer and divider
USD748259S1 (en) 2014-12-29 2016-01-26 Applied Medical Resources Corporation Electrosurgical instrument
US9636164B2 (en) 2015-03-25 2017-05-02 Advanced Cardiac Therapeutics, Inc. Contact sensing systems and methods
US10213253B2 (en) 2015-12-24 2019-02-26 Biosense Webster (Israel) Ltd. Estimating a temperature during ablation
US10575901B2 (en) 2015-12-24 2020-03-03 Biosense Webster (Israel) Ltd. Estimating a temperature during ablation
JP6923549B2 (en) 2016-03-15 2021-08-18 エピックス セラピューティクス,インコーポレイテッド Improved system for irrigation cauterization
US10660700B2 (en) 2016-04-28 2020-05-26 Biosense Webster (Israel) Ltd. Irrigated balloon catheter with flexible circuit electrode assembly
US20170347896A1 (en) * 2016-06-02 2017-12-07 Biosense Webster (Israel) Ltd. Balloon catheter and related impedance-based methods for detecting occlusion
US10638976B2 (en) 2016-04-28 2020-05-05 Biosense Webster (Israel) Ltd Method of constructing irrigated balloon catheter
US11172821B2 (en) 2016-04-28 2021-11-16 Medtronic Navigation, Inc. Navigation and local thermometry
WO2018200865A1 (en) 2017-04-27 2018-11-01 Epix Therapeutics, Inc. Determining nature of contact between catheter tip and tissue
WO2018227268A1 (en) * 2017-06-12 2018-12-20 Kardium Inc. Medical device systems and methods for activating transducers based on delivery shaft member temperature
CN110007097A (en) * 2017-12-04 2019-07-12 蒙大纳仪器公司 Analysis instrument, method and component
CA3111558A1 (en) 2018-09-05 2020-03-12 Applied Medical Resources Corporation Electrosurgical generator control system
US11696796B2 (en) 2018-11-16 2023-07-11 Applied Medical Resources Corporation Electrosurgical system
USD969138S1 (en) 2019-05-31 2022-11-08 Biosense Webster (Israel) Ltd. Display screen with a graphical user interface
USD968421S1 (en) 2019-05-31 2022-11-01 Biosense Webster (Israel) Ltd. Display screen with a graphical user interface
USD968422S1 (en) 2019-05-31 2022-11-01 Biosense Webster (Israel) Ltd. Display screen with transitional graphical user interface
CN112932659A (en) * 2021-01-26 2021-06-11 上海优医基微能医疗科技有限公司 Microwave ablation electrode needle and ablation system thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860744A (en) * 1987-11-02 1989-08-29 Raj K. Anand Thermoelectrically controlled heat medical catheter
US4907589A (en) * 1988-04-29 1990-03-13 Cosman Eric R Automatic over-temperature control apparatus for a therapeutic heating device
US4998933A (en) * 1988-06-10 1991-03-12 Advanced Angioplasty Products, Inc. Thermal angioplasty catheter and method
US5191883A (en) * 1988-10-28 1993-03-09 Prutech Research And Development Partnership Ii Device for heating tissue in a patient's body
US5057105A (en) * 1989-08-28 1991-10-15 The University Of Kansas Med Center Hot tip catheter assembly
US5122137A (en) * 1990-04-27 1992-06-16 Boston Scientific Corporation Temperature controlled rf coagulation
US5180896A (en) * 1990-10-11 1993-01-19 University Of Florida System and method for in-line heating of medical fluid
US5348554A (en) * 1992-12-01 1994-09-20 Cardiac Pathways Corporation Catheter for RF ablation with cooled electrode

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US5702386A (en) 1997-12-30
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