WO2007047360A3 - Dynamic contact assessment for electrode catheters - Google Patents

Dynamic contact assessment for electrode catheters Download PDF

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Publication number
WO2007047360A3
WO2007047360A3 PCT/US2006/039881 US2006039881W WO2007047360A3 WO 2007047360 A3 WO2007047360 A3 WO 2007047360A3 US 2006039881 W US2006039881 W US 2006039881W WO 2007047360 A3 WO2007047360 A3 WO 2007047360A3
Authority
WO
WIPO (PCT)
Prior art keywords
catheter shaft
piezoelectric sensor
flexible catheter
dynamic contact
tissue
Prior art date
Application number
PCT/US2006/039881
Other languages
French (fr)
Other versions
WO2007047360A2 (en
Inventor
Saurav Paul
Thao Chou
Kedar Ravindra Belhe
Reed R Heimbecher
Original Assignee
St Jude Medical Atrial Fibrill
Saurav Paul
Thao Chou
Kedar Ravindra Belhe
Reed R Heimbecher
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 St Jude Medical Atrial Fibrill, Saurav Paul, Thao Chou, Kedar Ravindra Belhe, Reed R Heimbecher filed Critical St Jude Medical Atrial Fibrill
Publication of WO2007047360A2 publication Critical patent/WO2007047360A2/en
Publication of WO2007047360A3 publication Critical patent/WO2007047360A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
    • A61B5/036—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs by means introduced into body tracts
    • 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
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/061—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6885—Monitoring or controlling sensor contact pressure
    • 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
    • A61B2018/00351—Heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
    • A61B2090/065—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring contact or contact pressure

Abstract

An electrode catheter and a method for assessing catheter-tissue contact for tissue ablation are disclosed. An exemplary electrode catheter comprises a flexible catheter shaft. At least one piezoelectric sensor is oriented coaxial to the flexible catheter shaft. The at least one piezoelectric sensor is responsive to movement of the flexible catheter shaft by generating electrical signals corresponding to the amount of movement. The system may also include an output device electrically connected to the at least one piezoelectric sensor. The output device receives the electrical signals for dynamically assessing a level of contact between the flexible catheter shaft and a moving tissue. In another exemplary embodiment, the system may be implemented in a hydrodynamic environment.
PCT/US2006/039881 2005-10-13 2006-10-13 Dynamic contact assessment for electrode catheters WO2007047360A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US72716405P 2005-10-13 2005-10-13
US60/727,164 2005-10-13
US11/549,100 US8679109B2 (en) 2005-10-13 2006-10-12 Dynamic contact assessment for electrode catheters
US11/549,100 2006-10-12

Publications (2)

Publication Number Publication Date
WO2007047360A2 WO2007047360A2 (en) 2007-04-26
WO2007047360A3 true WO2007047360A3 (en) 2009-04-23

Family

ID=37963085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/039881 WO2007047360A2 (en) 2005-10-13 2006-10-13 Dynamic contact assessment for electrode catheters

Country Status (2)

Country Link
US (1) US8679109B2 (en)
WO (1) WO2007047360A2 (en)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1887940B1 (en) 2005-05-06 2013-06-26 Vasonova, Inc. Apparatus for endovascular device guiding and positioning
US20090118612A1 (en) 2005-05-06 2009-05-07 Sorin Grunwald Apparatus and Method for Vascular Access
KR101490374B1 (en) * 2007-03-26 2015-02-05 보스톤 싸이엔티픽 리미티드 High resolution electrophysiology catheter
US9364287B2 (en) 2007-06-05 2016-06-14 Reliant Technologies, Inc. Method for reducing pain of dermatological treatments
JP5660890B2 (en) 2007-06-26 2015-01-28 バソノバ・インコーポレイテッドＶａｓｏｎｏｖａ， Ｉｎｃ． Vascular access and guidance system
US8535308B2 (en) 2007-10-08 2013-09-17 Biosense Webster (Israel), Ltd. High-sensitivity pressure-sensing probe
US8357152B2 (en) 2007-10-08 2013-01-22 Biosense Webster (Israel), Ltd. Catheter with pressure sensing
US8437832B2 (en) 2008-06-06 2013-05-07 Biosense Webster, Inc. Catheter with bendable tip
US9101734B2 (en) * 2008-09-09 2015-08-11 Biosense Webster, Inc. Force-sensing catheter with bonded center strut
US9326700B2 (en) 2008-12-23 2016-05-03 Biosense Webster (Israel) Ltd. Catheter display showing tip angle and pressure
US8600472B2 (en) * 2008-12-30 2013-12-03 Biosense Webster (Israel), Ltd. Dual-purpose lasso catheter with irrigation using circumferentially arranged ring bump electrodes
US8475450B2 (en) * 2008-12-30 2013-07-02 Biosense Webster, Inc. Dual-purpose lasso catheter with irrigation
US8882758B2 (en) 2009-01-09 2014-11-11 Solta Medical, Inc. Tissue treatment apparatus and systems with pain mitigation and methods for mitigating pain during tissue treatments
US8506506B2 (en) 2009-01-12 2013-08-13 Solta Medical, Inc. Tissue treatment apparatus with functional mechanical stimulation and methods for reducing pain during tissue treatments
EP2395934B1 (en) 2009-02-11 2019-04-17 Boston Scientific Scimed, Inc. Insulated ablation catheter devices
WO2011008444A1 (en) 2009-06-30 2011-01-20 Boston Scientific Scimed, Inc. Map and ablate open irrigated hybrid catheter
US8788060B2 (en) 2009-07-16 2014-07-22 Solta Medical, Inc. Tissue treatment systems with high powered functional electrical stimulation and methods for reducing pain during tissue treatments
EP2467689B1 (en) 2009-08-21 2019-12-25 St. Jude Medical, Cardiology Division, Inc. Flexible sensors and related systems for determining forces applied to an object, such as a surgical instrument
WO2011053766A1 (en) * 2009-10-30 2011-05-05 Advanced Bionics, Llc Steerable stylet
US10688278B2 (en) 2009-11-30 2020-06-23 Biosense Webster (Israel), Ltd. Catheter with pressure measuring tip
US10624553B2 (en) * 2009-12-08 2020-04-21 Biosense Webster (Israel), Ltd. Probe data mapping using contact information
US8920415B2 (en) * 2009-12-16 2014-12-30 Biosense Webster (Israel) Ltd. Catheter with helical electrode
US8521462B2 (en) 2009-12-23 2013-08-27 Biosense Webster (Israel), Ltd. Calibration system for a pressure-sensitive catheter
US8529476B2 (en) 2009-12-28 2013-09-10 Biosense Webster (Israel), Ltd. Catheter with strain gauge sensor
US8608735B2 (en) 2009-12-30 2013-12-17 Biosense Webster (Israel) Ltd. Catheter with arcuate end section
AU2013204290B2 (en) * 2010-01-22 2015-09-10 Biosense Webster, Inc. Catheter having a force sensing distal tip
US8374670B2 (en) * 2010-01-22 2013-02-12 Biosense Webster, Inc. Catheter having a force sensing distal tip
US8798952B2 (en) 2010-06-10 2014-08-05 Biosense Webster (Israel) Ltd. Weight-based calibration system for a pressure sensitive catheter
US8226580B2 (en) 2010-06-30 2012-07-24 Biosense Webster (Israel), Ltd. Pressure sensing for a multi-arm catheter
US8380276B2 (en) 2010-08-16 2013-02-19 Biosense Webster, Inc. Catheter with thin film pressure sensing distal tip
US8731859B2 (en) 2010-10-07 2014-05-20 Biosense Webster (Israel) Ltd. Calibration system for a force-sensing catheter
US8979772B2 (en) 2010-11-03 2015-03-17 Biosense Webster (Israel), Ltd. Zero-drift detection and correction in contact force measurements
JP5980791B2 (en) 2010-11-08 2016-09-07 バソノバ・インコーポレイテッドＶａｓｏｎｏｖａ， Ｉｎｃ． Intravascular guidance system
GB201101390D0 (en) * 2011-01-27 2011-03-09 Barts And The London Nhs Trust L Device for objective sensitivity testing
US9220433B2 (en) 2011-06-30 2015-12-29 Biosense Webster (Israel), Ltd. Catheter with variable arcuate distal section
US9662169B2 (en) 2011-07-30 2017-05-30 Biosense Webster (Israel) Ltd. Catheter with flow balancing valve
CA2847846A1 (en) 2011-09-14 2013-03-21 Boston Scientific Scimed, Inc. Ablation device with multiple ablation modes
EP2755588B1 (en) 2011-09-14 2016-05-18 Boston Scientific Scimed, Inc. Ablation device with ionically conductive balloon
WO2013086461A1 (en) 2011-12-09 2013-06-13 Metavention, Inc. Therapeutic neuromodulation of the hepatic system
EP2797539B1 (en) 2011-12-29 2020-12-02 St. Jude Medical Atrial Fibrillation Division Inc. System for optimized coupling of ablation catheters to body tissues and evaluation of lesions formed by the catheters
US8945025B2 (en) 2011-12-30 2015-02-03 St. Jude Medical, Atrial Fibrillation Division, Inc. Catheter with atraumatic tip
US9687289B2 (en) 2012-01-04 2017-06-27 Biosense Webster (Israel) Ltd. Contact assessment based on phase measurement
WO2013106557A1 (en) 2012-01-10 2013-07-18 Boston Scientific Scimed, Inc. Electrophysiology system
WO2013115941A1 (en) 2012-01-31 2013-08-08 Boston Scientific Scimed, Inc. Ablation probe with fluid-based acoustic coupling for ultrasonic tissue imaging
US9179972B2 (en) 2012-05-04 2015-11-10 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for controlling delivery of ablation energy to tissue
WO2013169371A1 (en) 2012-05-07 2013-11-14 Vasonova, Inc. Right atrium indicator
WO2014047068A1 (en) 2012-09-18 2014-03-27 Boston Scientific Scimed, Inc. Map and ablate closed-loop cooled ablation catheter
US9427167B2 (en) 2012-12-20 2016-08-30 Boston Scientific Scimed, Inc. Real-time feedback for electrode contact during mapping
US9179971B2 (en) * 2013-02-11 2015-11-10 St. Jude Medical, Atrial Fibrillation Division, Inc. Printed electrode catheter
CN106793968A (en) 2014-10-13 2017-05-31 波士顿科学医学有限公司 Organizational diagnosis and treatment using microelectrode
EP3209234B1 (en) 2014-10-24 2023-11-29 Boston Scientific Scimed Inc. Medical devices with a flexible electrode assembly coupled to an ablation tip
WO2016081611A1 (en) 2014-11-19 2016-05-26 Advanced Cardiac Therapeutics, Inc. High-resolution mapping of tissue with pacing
EP3220843B1 (en) 2014-11-19 2020-01-01 EPiX Therapeutics, Inc. Ablation devices and methods of using a high-resolution electrode assembly
WO2016100917A1 (en) 2014-12-18 2016-06-23 Boston Scientific Scimed Inc. Real-time morphology analysis for lesion assessment
US9636164B2 (en) 2015-03-25 2017-05-02 Advanced Cardiac Therapeutics, Inc. Contact sensing systems and methods
US20170035358A1 (en) * 2015-08-07 2017-02-09 Boston Scientific Scimed Inc. Force sensing catheters having super-elastic structural strain sensors
CN108430365B (en) 2015-12-20 2021-07-02 波士顿科学医学有限公司 Miniature inductive position sensor
CN108601618B (en) 2016-01-29 2021-05-25 波士顿科学医学有限公司 Force sensing catheter with impedance guided orientation
US10350423B2 (en) 2016-02-04 2019-07-16 Cardiac Pacemakers, Inc. Delivery system with force sensor for leadless cardiac device
KR20180124070A (en) 2016-03-15 2018-11-20 에픽스 테라퓨틱스, 인크. Improved apparatus, systems and methods for irrigation ablation
US10524859B2 (en) 2016-06-07 2020-01-07 Metavention, Inc. Therapeutic tissue modulation devices and methods
US11369431B2 (en) 2016-06-11 2022-06-28 Boston Scientific Scimed Inc. Inductive double flat coil displacement sensor
EP3614946B1 (en) 2017-04-27 2024-03-20 EPiX Therapeutics, Inc. Determining nature of contact between catheter tip and tissue
US10695558B2 (en) 2018-07-15 2020-06-30 Eagle Point Medical LLC Single conduit multi-electrode cardiac pacemaker and methods of using thereof
US10406370B1 (en) 2018-07-15 2019-09-10 Eagle Point Medical LLC Single conduit multi-electrode cardiac pacemaker and methods of using thereof
US11000689B2 (en) 2018-07-15 2021-05-11 Eagle Point Medical LLC Leadless multi-electrode cardiac pacemakers and methods of implantation thereof
US10729902B1 (en) 2018-07-15 2020-08-04 Eagle Point Medical LLC Intraseptal multi-electrode cardiac pacemaker and methods of use thereof
CN113747828A (en) 2019-01-15 2021-12-03 Apn健康有限责任公司 Cardiac catheter contact force determination

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6272371B1 (en) * 1997-01-03 2001-08-07 Biosense Inc. Bend-responsive catheter
US20030204184A1 (en) * 2002-04-26 2003-10-30 Bozidar Ferek-Patric Ablation methods and medical apparatus using same

Family Cites Families (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682596A (en) 1984-05-22 1987-07-28 Cordis Corporation Electrosurgical catheter and method for vascular applications
US4600017A (en) 1984-07-19 1986-07-15 Cordis Corporation Pacing lead with sensor
US4991588A (en) 1986-07-21 1991-02-12 Pfizer Hospital Products Group, Inc. Doppler guide wire
US4799495A (en) 1987-03-20 1989-01-24 National Standard Company Localization needle assembly
US4911174A (en) 1989-02-13 1990-03-27 Cardiac Pacemakers, Inc. Method for matching the sense length of an impedance measuring catheter to a ventricular chamber
US4976711A (en) 1989-04-13 1990-12-11 Everest Medical Corporation Ablation catheter with selectively deployable electrodes
US5006119A (en) 1989-05-25 1991-04-09 Engineering & Research Associates, Inc. Hollow core coaxial catheter
US5028394A (en) 1990-04-13 1991-07-02 Bend Research, Inc. Chemical sensors
US5341807A (en) 1992-06-30 1994-08-30 American Cardiac Ablation Co., Inc. Ablation catheter positioning system
DE4235506A1 (en) 1992-10-21 1994-04-28 Bavaria Med Tech Drug injection catheter
US5405346A (en) 1993-05-14 1995-04-11 Fidus Medical Technology Corporation Tunable microwave ablation catheter
WO1995010978A1 (en) 1993-10-19 1995-04-27 Ep Technologies, Inc. Segmented electrode assemblies for ablation of tissue
US5462521A (en) 1993-12-21 1995-10-31 Angeion Corporation Fluid cooled and perfused tip for a catheter
US5447529A (en) 1994-01-28 1995-09-05 Philadelphia Heart Institute Method of using endocardial impedance for determining electrode-tissue contact, appropriate sites for arrhythmia ablation and tissue heating during ablation
US5447539A (en) * 1994-02-10 1995-09-05 Dke Incorporated Method of dyeing polypropylene fiber with more than one color
US5536245A (en) * 1994-11-23 1996-07-16 Dahlbeck; Scott Laryngoscope pressure sensor and alarm
US6246898B1 (en) 1995-03-28 2001-06-12 Sonometrics Corporation Method for carrying out a medical procedure using a three-dimensional tracking and imaging system
US5895355A (en) 1995-05-23 1999-04-20 Cardima, Inc. Over-the-wire EP catheter
US5697925A (en) 1995-06-09 1997-12-16 Engineering & Research Associates, Inc. Apparatus and method for thermal ablation
US5868737A (en) 1995-06-09 1999-02-09 Engineering Research & Associates, Inc. Apparatus and method for determining ablation
US6113592A (en) 1995-06-09 2000-09-05 Engineering & Research Associates, Inc. Apparatus and method for controlling ablation depth
US6322558B1 (en) 1995-06-09 2001-11-27 Engineering & Research Associates, Inc. Apparatus and method for predicting ablation depth
US6066139A (en) 1996-05-14 2000-05-23 Sherwood Services Ag Apparatus and method for sterilization and embolization
US5893848A (en) * 1996-10-24 1999-04-13 Plc Medical Systems, Inc. Gauging system for monitoring channel depth in percutaneous endocardial revascularization
US5782828A (en) 1996-12-11 1998-07-21 Irvine Biomedical, Inc. Ablation catheter with multiple flexible curves
US6127672A (en) 1997-05-23 2000-10-03 Canadian Space Agency Topological and motion measuring tool
ATE307536T1 (en) 1997-04-01 2005-11-15 Axel Muntermann DEVICE FOR DETECTING CATHETER TISSUE CONTACT AND INTERACTIONS WITH TISSUE DURING CATHETER ABLATION
CN1213701C (en) 1997-04-04 2005-08-10 美国3M公司 Method and apparatus for controlling contact of biomedical electrodes with patient skin
GB9708268D0 (en) 1997-04-24 1997-06-18 Gyrus Medical Ltd An electrosurgical instrument
US5836990A (en) 1997-09-19 1998-11-17 Medtronic, Inc. Method and apparatus for determining electrode/tissue contact
US6078830A (en) 1997-10-01 2000-06-20 Ep Technologies, Inc. Molded catheter distal end assembly and process for the manufacture thereof
US5947905A (en) 1997-10-15 1999-09-07 Advanced Coronary Intervention, Inc. Ultrasound transducer array probe for intraluminal imaging catheter
US6845264B1 (en) 1998-10-08 2005-01-18 Victor Skladnev Apparatus for recognizing tissue types
US6210406B1 (en) 1998-12-03 2001-04-03 Cordis Webster, Inc. Split tip electrode catheter and signal processing RF ablation system
US6304653B1 (en) * 1998-12-04 2001-10-16 At&T Corp. Method and apparatus for intelligent data network call setup
US6423057B1 (en) 1999-01-25 2002-07-23 The Arizona Board Of Regents On Behalf Of The University Of Arizona Method and apparatus for monitoring and controlling tissue temperature and lesion formation in radio-frequency ablation procedures
US6113593A (en) 1999-02-01 2000-09-05 Tu; Lily Chen Ablation apparatus having temperature and force sensing capabilities
US6696844B2 (en) 1999-06-04 2004-02-24 Engineering & Research Associates, Inc. Apparatus and method for real time determination of materials' electrical properties
US6391024B1 (en) 1999-06-17 2002-05-21 Cardiac Pacemakers, Inc. RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering
SE514744C2 (en) 1999-07-06 2001-04-09 Samba Sensors Ab Method and apparatus for optical measurement systems
US6264653B1 (en) 1999-09-24 2001-07-24 C. R. Band, Inc. System and method for gauging the amount of electrode-tissue contact using pulsed radio frequency energy
EP1267729A2 (en) 2000-03-23 2003-01-02 SciMed Life Systems, Inc. Pressure sensor for therapeutic delivery device and method
EP1642544B1 (en) 2000-05-03 2009-04-08 C.R.Bard, Inc. Apparatus for mapping and ablation in electrophysiology procedures
US6391034B1 (en) * 2000-08-15 2002-05-21 University Of South Florida Surgical device and method for removing unwanted tissue
US7011410B2 (en) 2000-11-22 2006-03-14 Eyetect, L.L.C. Method and apparatus for monitoring eye tremor
JP4655175B2 (en) 2000-12-19 2011-03-23 ソニー株式会社 MANIPULATOR SYSTEM, MASTER MANIPULATOR, SLAVE MANIPULATOR, CONTROL METHOD THEREOF, AND RECORDING MEDIUM
US6666862B2 (en) 2001-03-01 2003-12-23 Cardiac Pacemakers, Inc. Radio frequency ablation system and method linking energy delivery with fluid flow
US6800986B2 (en) 2002-01-23 2004-10-05 Tdk Corporation Piezoelectric sensor
US6882885B2 (en) 2002-03-19 2005-04-19 Solarant Medical, Inc. Heating method for tissue contraction
US9149322B2 (en) 2003-03-31 2015-10-06 Edward Wells Knowlton Method for treatment of tissue
US6964661B2 (en) 2003-04-02 2005-11-15 Boston Scientific Scimed, Inc. Endovenous ablation mechanism with feedback control
WO2005039835A1 (en) 2003-10-24 2005-05-06 The University Of Western Ontario Force reflective robotic control system and minimally invasive surgical device
US20050267467A1 (en) 2004-01-16 2005-12-01 Saurav Paul Bipolar conforming electrode catheter and methods for ablation
US7326204B2 (en) 2004-01-16 2008-02-05 St. Jude Medical, Atrial Fibrillation Division, Inc. Brush electrode and method for ablation
US7326206B2 (en) 2004-01-16 2008-02-05 St. Jude Medical, Atrial Fibrillation Division, Inc. Conforming-electrode catheter and method for ablation
WO2006050385A2 (en) 2004-11-01 2006-05-11 Proteus Biomedical, Inc. Cardiac motion characterization by strain measurement
US20070078484A1 (en) * 2005-10-03 2007-04-05 Joseph Talarico Gentle touch surgical instrument and method of using same
EP1948057B1 (en) * 2005-10-27 2012-03-14 St. Jude Medical, Atrial Fibrillation Division, Inc. Systems for electrode contact assessment
US8211102B2 (en) * 2007-12-21 2012-07-03 St. Jude Medical, Atrial Fibrillation Division, Inc. Contact sensing flexible conductive polymer electrode

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6272371B1 (en) * 1997-01-03 2001-08-07 Biosense Inc. Bend-responsive catheter
US20030204184A1 (en) * 2002-04-26 2003-10-30 Bozidar Ferek-Patric Ablation methods and medical apparatus using same

Also Published As

Publication number Publication date
US8679109B2 (en) 2014-03-25
US20080015568A1 (en) 2008-01-17
WO2007047360A2 (en) 2007-04-26

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