System and method for measuring initial tissue impedance

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8034049
APP PUB NO 20080039831A1
SERIAL NO

11500687

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electrosurgical system and method are disclosed. The system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The generator is further adapted to supply an electrical signal having at least one substantially constant value to tissue to determine initial tissue impedance response. The generator includes sensor circuitry adapted to continuously monitor initial tissue impedance response, wherein the initial tissue impedance response includes one of an initial impedance, an impedance drop, an impedance minimum and a first impedance rise. The generator also includes a microprocessor adapted to generate at least one tissue parameter based as a function of the initial impedance, the impedance drop, the impedance minimum and the first impedance rise. The system also includes an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue for treatment.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COVIDIEN AGNEUHAUSEN AM RHEINFALL571

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Denham, Amy Boulder, US 7 873
Odom, Darren Longmont, US 21 3330
Weinberg, Craig Denver, US 28 3280

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Minnesota Mining and Manufacturing Company (1)
5797902 Biomedical electrode providing early detection of accidental detachment 114 1996
 
Other [Check patent profile for assignment information] (18)
4343308 Surgical ground detector 122 1980
4492231 Non-sticking electrocautery system and forceps 657 1982
4472661 High voltage, low power transformer for efficiently firing a gas discharge luminous display 96 1982
4657015 Control device for a high frequency surgical apparatus 158 1985
4651280 Electrosurgical control system using tissue conductivity 142 1985
4741334 Monitoring arrangement for a high frequency surgery device 127 1986
4754757 Method and apparatus for monitoring the surface contact of a neutral electrode of a HF-surgical apparatus 171 1986
4890610 Bipolar forceps 157 1989
5108389 Automatic smoke evacuator activator system for a surgical laser apparatus and method therefor 127 1990
5430434 Portable surgical early warning device 91 1993
5921982 Systems and methods for ablating body tissue 553 1997
5951546 Electrosurgical instrument for tissue ablation, an apparatus, and a method for providing a lesion in damaged and diseased tissue from a mammal 411 1997
6132429 Radiofrequency medical instrument and methods for luminal welding 136 1999
2003/0199,863 Systems and methods for controlling power in an electrosurgical probe 266 2002
2003/0181,898 RF filter for an electrosurgical generator 105 2003
2004/0015,216 Self-evacuating electrocautery device 84 2003
2004/0167,508 Vessel sealing system 157 2004
2005/0004,569 Coagulating electrosurgical instrument with tissue dam 180 2004
 
SHERWOOD SERVICES AG (14)
4416276 Adaptive, return electrode monitoring system 620 1981
4416277 Return electrode monitoring system for use during electrosurgical activation 186 1981
4565200 Universal lesion and recording electrode system 644 1982
4658819 Electrosurgical generator 310 1983
4632109 Circuitry for processing requests made from the sterile field of a surgical procedure to change the output power level of an electrosurgical generator 105 1984
4827927 Apparatus for changing the output power level of an electrosurgical generator while remaining in the sterile field of a surgical procedure 188 1984
4658820 Electrosurgical generator with improved circuitry for generating RF drive pulse trains 139 1985
4907589 Automatic over-temperature control apparatus for a therapeutic heating device 660 1988
4966597 Thermometric cardiac tissue ablation electrode with ultra-sensitive temperature detection 719 1988
6451015 Method and system for menu-driven two-dimensional display lesion generator 320 1998
2005/0021,020 System for activating an electrosurgical instrument 81 2004
2007/0173,802 Method and system for transmitting data across patient isolation barrier 71 2006
2007/0173,813 System and method for tissue sealing 540 2006
2007/0282,320 System and method for controlling tissue heating rate prior to cellular vaporization 104 2006
 
LIGHTWAVE ABLATIOIN SYSTEMS (1)
5500012 Ablation catheter system 870 1994
 
SOMNUS MEDICAL TECHNOLOGIES, INC. (3)
6231569 Dual processor architecture for electro generator 158 1998
6293941 Method and apparatus for impedance measurement in a multi-channel electro-surgical generator 158 1998
6309386 Linear power control with PSK regulation 107 1998
 
IXYS CORPORATION (2)
5500616 Overvoltage clamp and desaturation detection circuit 96 1995
5596466 Intelligent, isolated half-bridge power module 133 1995
 
ASEA BROWN BOVERI AG (1)
4942313 Method for detecting a current flowing over the human body between a forward and a return conductor and a circuit configuration for carrying out the method 120 1988
 
SAMSUNG ELECTRONICS CO., LTD. (2)
2007/0173,803 System and method for terminating treatment in impedance feedback algorithm 166 2006
* 2010/0042,093 System and method for terminating treatment in impedance feedback algorithm 38 2006
 
COOPER INDUSTRIES, INC. (1)
4630218 Current measuring apparatus 125 1985
 
Rocky Mountain Research, Inc. (1)
5024668 Retrograde perfusion system, components and method 261 1987
 
Mehl; Thomas L. (1)
4566454 Selected frequency hair removal device and method 102 1981
 
Surgical Design Corporation (1)
4436091 Surgical cutting instrument with release mechanism 142 1981
 
GARITO, JON C. (1)
4463759 Universal finger/foot switch adaptor for tube-type electrosurgical instrument 199 1982
 
ELEKTA AB (PUBL) (1)
6629973 Method and an apparatus for controlled destruction of tissue 74 2001
 
ACLARA TECHNOLOGIES LLC (1)
5696441 Linear alternating current interface for electronic meters 126 1994
 
ETHICON ENDO-SURGERY, INC. (10)
5540684 Method and apparatus for electrosurgically treating tissue 529 1994
5558671 Impedance feedback monitor for electrosurgical instrument 949 1994
5707369 Temperature feedback monitor for hemostatic surgical instrument 507 1995
5693042 Identification device for surgical instrument 509 1995
5817093 Impedance feedback monitor with query electrode for electrosurgical instrument 733 1996
* 5797941 Surgical instrument with expandable cutting element 365 1997
6338657 Hand piece connector 160 2000
6558376 Method of use of an ultrasonic clamp and coagulation apparatus with tissue support surface 193 2001
2002/0107,517 Electrosurgical instrument for coagulation and cutting 300 2002
2002/0111,624 Coagulating electrosurgical instrument with tissue dam 252 2002
 
Medical Scientific, Inc. (3)
5207691 Electrosurgical clip applicator 412 1991
5201900 Bipolar surgical clip 214 1992
5713896 Impedance feedback electrosurgical system 746 1995
 
OLYMPUS CORPORATION (8)
6730080 Electric operation apparatus 116 2001
6740085 Heating treatment system 113 2001
6679875 Medical treatment system 166 2002
6855142 Electrosurgical device for treating body tissue with high-frequency power 103 2002
7063692 Surgical operation system 81 2003
7172591 Electric operation apparatus 82 2003
7001381 Electric operation apparatus 196 2003
2004/0133,189 Surgical operation apparatus and control method thereof 198 2003
 
HUGHES ELECTRONICS CORPORATION (1)
4992719 Stable high voltage pulse power supply 70 1989
 
ETHICON, INC. (1)
5403312 Electrosurgical hemostatic device 1526 1993
 
PREFERENTIAL, INC. (1)
5718246 Preferential induction of electrically mediated cell death from applied pulses 122 1996
 
ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH (1)
5531774 Multichannel implantable cochlear stimulator having programmable bipolar, monopolar or multipolar electrode configurations 140 1994
 
LOCKHEED MARTIN CORPORATION (1)
5414238 Resonant power supply for an arcjet thruster 107 1992
 
Diapulse Corporation of America (1)
6458121 Apparatus for athermapeutic medical treatments 171 1996
 
CHASE MANHATTAN BANK USA, NATIONAL ASSOCIATION (1)
5766165 Return path monitoring system 121 1995
 
KARL STORZ GMBH & CO. KG (3)
5749869 High-frequency surgical generator for cutting tissue 294 1995
5868739 System for cutting biological tissue 112 1995
5846236 High frequency-surgical generator for adjusted cutting and coagulation 118 1996
 
CORDIS CORPORATION (1)
4735204 System for controlling an implanted neural stimulator 155 1986
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5385148 Cardiac imaging and ablation catheter 673 1993
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5729448 Low cost highly manufacturable DC-to-DC power converter 131 1996
 
PALOMAR MEDICAL TECHNOLOGIES, LLC (3)
2003/0195,494 Light energy delivery head 19 2003
2003/0195,494 Light energy delivery head 19 2003
2003/0195,494 Light energy delivery head 19 2003
 
UNIVERSITY OF WASHINGTON (2)
4582057 Fast pulse thermal cautery probe 204 1983
4691703 Thermal cautery system 261 1986
 
KAI DESINGER (1)
6524308 Electrode arrangement for electrothermal treatment of human or animal bodies 114 2000
 
HENRY, MCCORD, BEAN & MILLER, P.L.L.C. (1)
5792138 Cordless bipolar electrocautery unit with automatic power control 261 1996
 
OLYMPUS OPTICAL CO., LTD. (16)
4662383 Endotract antenna device for hyperthermia 280 1983
4615330 Noise suppressor for electronic endoscope 136 1984
4961435 High-frequency capacitive heating electrode device 165 1988
5425704 Apparatus for generating ultrasonic oscillation 154 1992
5540683 High frequency cauterizing apparatus 173 1994
5931836 Electrosurgery apparatus and medical apparatus combined with the same 177 1997
6063075 Electrosurgical apparatus and separation detecting method capable of stably monitoring separation state of return electrode 129 1998
6383183 High frequency treatment apparatus 131 1999
6306131 Electric medical apparatus 115 1999
6436096 Electrosurgical apparatus with stable coagulation 112 1999
6464696 Electrical surgical operating apparatus 93 2000
6663623 Electric surgical operation apparatus 223 2000
6666860 Electric treatment system 214 2000
6635057 Electric operation apparatus 137 2000
6623423 Surgical operation system 102 2001
6511476 Electrosurgical apparatus with stable coagulation 104 2001
 
COLLABO INNOVATIONS, INC. (1)
7250746 Current mode switching regulator with predetermined on time 82 2005
 
CYTYC SURGICAL PRODUCTS, LLC (1)
6508815 Radio-frequency generator for powering an ablation device 383 1999
 
BIRTCHER CORPORATION, THE A CORP. OF CALIFORNIA (1)
4492832 Hand-controllable switching device for electrosurgical instruments 140 1982
 
Birtcher Medical Systems, Inc. (1)
RE34432 Power control technique for beam-type electrosurgical unit 101 1992
 
Onesys Oy (1)
5413573 Device for surgical procedures 469 1994
 
CURON MEDICAL, INC. (1)
2004/0172,016 Systems and methods for monitoring and controlling use of medical devices 146 2004
 
WILES, TERRY L. (1)
5417719 Method of using a spinal cord stimulation lead 417 1993
 
Utah Medical Products, Inc. (1)
5160334 Electrosurgical generator and suction apparatus 287 1991
 
TEXAS INSTRUMENTS INCORPORATED (1)
6188211 Current-efficient low-drop-out voltage regulator with improved load regulation and frequency response 190 1999
 
Cordis Webster, Inc. (1)
5462521 Fluid cooled and perfused tip for a catheter 549 1993
 
RADIONICS, INC. (1)
4411266 Thermocouple radio frequency lesion electrode 634 1980
 
Hemostatic Surgery Corporation (2)
5472443 Electrosurgical apparatus employing constant voltage and methods of use 580 1994
5445635 Regulated-current power supply and methods for resistively-heated surgical instruments 143 1994
 
STRYKER CORPORATION (1)
7041096 Electrosurgical generator apparatus 127 2002
 
NTERO SURGICAL, INC. (1)
6645198 Systems and methods for reducing post-surgical complications 103 2000
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
5323778 Method and apparatus for magnetic resonance imaging and heating tissues 242 1991
 
Hemostatix Corporation (1)
5400267 Local in-device memory feature for electrically powered medical equipment 598 1992
 
CARDIORHYTHM A CA CORPORATION (1)
5573533 Method and system for radiofrequency ablation of cardiac tissue 448 1992
 
ERBE ELEKTROMEDIZIN GMBH (8)
4658815 High-frequency electrosurgical unit with timed safety shut down interlock 101 1986
4860745 High frequency electrosurgical apparatus for thermal coagulation of biologic tissues 215 1987
4922210 Feedback-coupled high-frequency power oscillator 110 1989
4969885 High frequency surgery device for cutting and/or coagulating biologic tissue 263 1990
5087257 Apparatus for monitoring the application of neutral electrodes on a patient undergoing high frequency electro-surgery 151 1990
5267997 High-frequency electrosurgery apparatus with limitation of effective value of current flowing through a surgical instrument 403 1992
7066933 High-frequency generator for performing high-frequency surgery having adjustable power limitation, and method for controlling the power limitation 101 2001
2004/0044,339 Method for operating an instrument for use in high-frequency surgery, and electrosurgical device 53 2003
 
VIDAMED, INC. (1)
5871481 Tissue ablation apparatus and method 229 1997
 
SUROS SURGICAL SYSTEMS, INC. (1)
5685840 Method and apparatus for minimally invasive tissue removal 171 1995
 
SILICON VALLEY BANK (1)
6517538 Temperature-controlled snare 77 1999
 
Medical Plastics, Inc. (2)
4303073 Electrosurgery safety monitor 156 1980
4494541 Electrosurgery safety monitor 160 1981
 
POST N MAIL, L.C. (1)
5658322 Bio-active frequency generator and method 150 1995
 
JDS UNIPHASE CORPORATION (1)
4959606 Current mode switching regulator with programmed offtime 99 1989
 
MDT Corporation (1)
4938761 Bipolar electrosurgical forceps 398 1990
 
MORVIL TECHNOLOGY LLC (1)
5383917 Device and method for multi-phase radio-frequency ablation 953 1991
 
DATEX-OHMEDA, INC. (1)
6560470 Electrical lockout photoplethysmographic measurement system 173 2000
 
Richard Wolf GmbH (2)
4995877 Device with a rotationally-driven surgical instrument 268 1989
5324283 Medical instrument having a switch for controlling an external device 110 1992
 
CENTRAL BANK & TRUST COMPANY, A KY BANKING CORP. (1)
4397314 Method and apparatus for controlling and optimizing the heating pattern for a hyperthermia system 373 1981
 
PACKAGING SERVICE CORPORATION OF KENTUCKY, 3001 WEST KENTUCKY STREET, LOUISVILLE, KY 40211, A KY CORP. (1)
4590934 Bipolar cutter/coagulator 459 1983
 
ANGIODYNAMICS, INC. (4)
5458597 Device for treating cancer and non-malignant tumors and methods 542 1993
5536267 Multiple electrode ablation apparatus 787 1994
5599345 RF treatment apparatus 581 1994
6663624 RF treatment apparatus 156 1999
 
3M INNOVATIVE PROPERTIES COMPANY (1)
6171304 Method and apparatus for controlling contact of biomedical electrodes with patient skin 141 1999
 
ASTEC INTERNATIONAL LIMITED (1)
4887199 Start circuit for generation of pulse width modulated switching pulses for switch mode power supplies 134 1987
 
Medical Research Associates, Ltd. (1)
4378801 Electrosurgical generator 135 1980
 
SYNERON MEDICAL LTD. (1)
5569242 Method and apparatus for controlled contraction of soft tissue 663 1995
 
IRVINE BIOMEDICAL, INC. (1)
5954719 System for operating a RF ablation generator 330 1998
 
I.C. MEDICAL, INC. (1)
5836909 Automatic fluid control system for use in open and laparoscopic laser surgery and electrosurgery and method therefor 193 1996
 
MEDTRONIC ADVANCED ENERGY LLC (2)
6689131 Electrosurgical device having a tissue reduction sensor 273 2001
* 6953461 Fluid-assisted medical devices, systems and methods 373 2002
 
CONMED CORPORATION (14)
5267994 Electrosurgical probe 439 1992
5300070 Electrosurgical trocar assembly with bi-polar electrode 156 1992
5432459 Leakage capacitance compensating current sensor for current supplied to medical device loads with unconnected reference conductor 97 1993
5436566 Leakage capacitance compensating current sensor for current supplied to medical device loads 231 1993
5599348 Electrosurgical trocar assembly 117 1994
5496313 System for detecting penetration of medical instruments 94 1994
5626575 Power level control apparatus for electrosurgical generators 159 1995
5830212 Electrosurgical generator and electrode 172 1996
2004/0097,912 Electrosurgical generator and method with removable front panel having replaceable electrical connection sockets and illuminated receptacles 142 2002
6830569 Electrosurgical generator and method for detecting output power delivery malfunction 161 2002
6875210 Electrosurgical generator and method for cross-checking mode functionality 103 2002
6939347 Electrosurgical generator and method with voltage and frequency regulated high-voltage current mode power supply 133 2002
6942660 Electrosurgical generator and method with multiple semi-autonomously executable functions 142 2002
6948503 Electrosurgical generator and method for cross-checking output power 157 2002
 
LEIBINGER GMBH (1)
4474179 Method and apparatus for the high frequency coagulation of protein for surgical purposes 235 1982
 
American Cardiac Ablation Co. Inc. (5)
5341807 Ablation catheter positioning system 570 1992
5334193 Fluid cooled ablation catheter 1046 1992
5342357 Fluid cooled electrosurgical cauterization system 642 1992
5383876 Fluid cooled electrosurgical probe for cutting and cauterizing tissue 757 1994
5733281 Ultrasound and impedance feedback system for use with electrosurgical instruments 130 1996
 
THE JOHNS HOPKINS UNIVERSITY (1)
5370672 Computer-controlled neurological stimulation system 276 1992
 
PROJECT TROJAN INTELLECTUAL PROPERTY ACQUISITION, LLC (1)
6855141 Method for monitoring impedance to control power and apparatus utilizing same 113 2002
 
ATRICURE, INC. (1)
6113596 Combination monopolar-bipolar electrosurgical instrument system, instrument and cable 471 1997
 
BOSTON SCIENTIFIC SCIMED, INC. (14)
5122137 Temperature controlled RF coagulation 714 1990
5103804 Expandable tip hemostatic probes and the like 445 1990
5348554 Catheter for RF ablation with cooled electrode 943 1992
5403311 Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue 1098 1993
5409000 Endocardial mapping and ablation system utilizing separately controlled steerable ablation catheter with ultrasonic imaging capabilities and method 492 1993
5954717 Method and system for heating solid tissue 262 1997
6080149 Method and apparatus for monitoring solid tissue heating 178 1998
6123702 Systems and methods for controlling power in an electrosurgical probe 418 1998
6245065 Systems and methods for controlling power in an electrosurgical probe 435 1998
6337998 Apparatus and method for treating tumors near the surface of an organ 155 1999
6511478 Medical probe with reduced number of temperature sensor wires 291 2000
6685703 Generator and probe adapter 136 2001
6685700 Method and system for heating solid tissue 142 2001
6790206 Compensation for power variation along patient cables 161 2002
 
MEDICAL RESEARCH ASSOCIATES, LTD. (1)
4739759 Microprocessor controlled electrosurgical generator 287 1985
 
VALLEYLAB INC. (1)
6251106 Electrosurgical generator power control circuit and method 96 1998
 
Gyrus Medical, Inc. (1)
4903696 Electrosurgical generator 281 1988
 
GYRUS MEDICAL LIMITED (25)
5647869 Electrosurgical apparatus 836 1995
6293942 Electrosurgical generator method 684 1996
6074386 Electrosurgical instrument and an electrosurgical electrode assembly 827 1997
6093186 Electrosurgical generator and system 626 1997
6416509 Electrosurgical generator and system 609 1998
6056746 Electrosurgical instrument 728 1998
6261286 Electrosurgical generator and system 575 1998
6306134 Electrosurgical generator and system 594 1998
6364877 Electrosurgical generator and system 534 1998
6228081 Electrosurgery system and method 568 1999
6325799 Electrosurgical instrument 613 1999
6582427 Electrosurgery system 549 2000
6398781 Electrosurgery system 465 2000
6547786 Electrosurgery system and instrument 416 2000
6758846 Electrosurgical instrument and an electrosurgery system including such an instrument 487 2001
6893435 Electrosurgical system 453 2001
6843789 Electrosurgical system 470 2002
2003/0139,741 Surgical instrument 661 2002
2003/0153,908 Electrosurgery system 396 2003
6929641 Electrosurgical system 397 2003
6966907 Electrosurgical generator and system 574 2003
7220260 Electrosurgical system 427 2003
7214224 Electrosurgical system 395 2003
7211081 Electrosurgical generator 399 2003
7282048 Electrosurgical generator and system 454 2004
 
UNITED STATES SURGICAL CORPORATION (1)
5483952 Handle for surgical instruments 146 1994
 
Vein Rx, Inc. (1)
2004/0015,159 Methods and apparatus for treating the wall of a blood vessel with electromagnetic energy 75 2003
 
BOSTON SCIENTIFIC CORPORATION (1)
5588432 Catheters for imaging, sensing electrical potentials, and ablating tissue 917 1995
 
INTEGRA BURLINGTON MA, INC. (1)
5230623 Operating pointer with interactive computergraphics 649 1991
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
6155975 Phacoemulsification apparatus with personal computer 123 1998
 
WELLS FARGO BANK, NATIONAL ASSOCIATION FLAIR INDUSTRIAL PARK RCBO (6)
4429694 Electrosurgical generator 139 1981
4438766 Electrosurgical generator 104 1981
4437464 Electrosurgical generator safety apparatus 149 1981
4559943 Electrosurgical generator 154 1983
4727874 Electrosurgical generator with high-frequency pulse width modulated feedback power control 360 1984
5152762 Current leakage control for electrosurgical generator 193 1990
 
TYCO HEALTHCARE GROUP LP (1)
2007/0173,804 System and method for tissue sealing 97 2007
 
SYNERGETICS USA, INC. (1)
5318563 Bipolar RF generator 342 1992
 
TYCO HEALTHCARE GROUP AG (35)
5233515 Real-time graphic display of heat lesioning parameters in a clinical lesion generator system 233 1990
5334183 Endoscopic electrosurgical apparatus 950 1992
5370645 Electrosurgical processor and method of use 560 1993
5372596 Apparatus for leakage control and method for its use 452 1993
5443463 Coagulating forceps 819 1993
5423809 Electrosurgical control for a trocar 468 1993
5496312 Impedance and temperature generator control 1285 1993
6210403 Automatic control for energy from an electrosurgical generator 486 1993
5433739 Method and apparatus for heating an intervertebral disc for relief of back pain 698 1993
5514129 Automatic bipolar control for an electrosurgical generator 455 1993
5422567 High frequency power measurement 610 1993
5571147 Thermal denervation of an intervertebral disc for relief of back pain 390 1994
5613966 System and method for accessory rate control 404 1994
5695494 Rem output stage topology 420 1994
5599344 Control apparatus for electrosurgical generator power output 448 1995
5628745 Exit spark control for an electrosurgical generator 344 1995
5720744 Control system for neurosurgery 681 1995
5827271 Energy delivery system for vessel sealing 712 1995
6241725 High frequency thermal ablation of cancerous tumors and functional targets with image data assistance 326 1996
5983141 Method and apparatus for altering neural tissue function 414 1996
6068627 Smart recognition apparatus and method 579 1997
6102497 Universal cart 83 1998
6203541 Automatic activation of electrosurgical generator bipolar output 191 1999
6258085 Electrosurgical return electrode monitor 146 1999
6246912 Modulated high frequency tissue modification 542 1999
6402741 Current and status monitor 129 1999
6402743 Smart recognition apparatus and method 206 2000
6506189 Cool-tip electrode thermosurgery system 487 2000
6575969 Cool-tip radiofrequency thermosurgery electrode system for tumor ablation 749 2000
6565559 Electrosurgical return electrode monitor 115 2001
6755825 Electrosurgical device having a dielectric seal 154 2001
6685701 Smart recognition apparatus and method 211 2002
7300435 Automatic control system for an electrosurgical generator 381 2003
7255694 Variable output crest factor electrosurgical generator 77 2003
7044949 Smart recognition apparatus and method 148 2004
 
INTEGRA LIFESCIENCES (IRELAND) LTD. (3)
4931047 Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis 856 1987
5015227 Apparatus for providing enhanced tissue fragmentation and/or hemostasis 644 1990
5190517 Electrosurgical and ultrasonic surgical system 791 1991
 
MEDERI THERAPEUTICS, INC. (5)
6273886 Integrated tissue heating and cooling apparatus 506 1999
6464689 Graphical user interface for monitoring and controlling use of medical devices 183 2000
6783523 Unified systems and methods for controlling use and operation of a family of different treatment devices 175 2002
6733495 Systems and methods for monitoring and controlling use of medical devices 181 2002
6994704 Graphical user interface for monitoring and controlling use of medical devices 138 2002
 
BRAUN AKTIENGESELLSCHAFT (1)
4376263 Battery charging circuit 127 1981
 
RESPIRATORY DIAGNOSTICS, INC. (1)
7122031 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 178 2001
 
PHYSIO-CONTROL, INC. (1)
5605150 Electrical interface for a portable electronic physiological instrument having separable components 138 1994
 
TRANSAMERICA BUSINESS CREDIT CORPORATION (1)
5520684 Transurethral radio frequency apparatus for ablation of the prostate gland and method 422 1994
 
The United States of America as represented by the United States Department of Energy (1)
4339049 Containers for use in a self supporting assembly 99 1980
 
SMITHS GROUP PLC (2)
4961047 Electrical power control apparatus and methods 116 1989
5480399 Electrosurgery monitor and apparatus 127 1994
 
TRION, INC. (1)
4651264 Power supply with arcing control and automatic overload protection 97 1984
 
KABUSHIKI KAISHA TOSHIBA (1)
5409485 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 113 1993
 
PACESETTER AB (1)
4805621 Apparatus for measuring impedance of body tissue 148 1987
 
BELL TELEPHONE LABORATORIES, INCORPORATED (1)
4586120 Current limit shutdown circuit with time delay 88 1983
 
PERFECT SURGICAL TECHNIQUES, INC. (1)
6682527 Method and system for heating tissue with a bipolar instrument 604 2001
 
BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA (1)
5868740 Method for volumetric tissue ablation 451 1995
 
NELLCOR PURITAN BENNETT INCORPORATED (2)
5660567 Medical sensor connector with removable encoding device 380 1995
6044283 Medical sensor with modulated encoding scheme 230 1998
 
JOHNSON & JOHNSON PROFESSIONAL, INC. (1)
4520818 High dielectric output circuit for electrosurgical power source 115 1983
 
SEEDLING ENTERPRISES, INC. (1)
5647871 Electrosurgery with cooled electrodes 580 1995
 
KARL STORZ ENDOSCOPY-AMERICA, INC. (3)
4818954 High-frequency generator with automatic power-control for high-frequency surgery 155 1987
5108391 High-frequency generator for tissue cutting and for coagulating in high-frequency surgery 427 1989
6824539 Touchscreen controlling medical equipment from multiple manufacturers 126 2002
 
AN-CON GENETICS, INC. (1)
5167658 Method and apparatus for electrosurgical measurement 164 1991
 
SIEMENS AKTIENGESELLSCHAFT (2)
4862889 Monitoring circuit for an RF surgical apparatus 164 1989
5196008 Method and circuit for monitoring electrode surfaces at the body tissue of a patient in an HF surgery device 112 1990
 
Alton Dean Medical (1)
5254117 Multi-functional endoscopic probe apparatus 265 1992
 
VENTURE LENDING DIVISION OF THE CUPERTINO NATIONAL BANK (1)
5472441 Device for treating cancer and non-malignant tumors and methods 684 1994
 
MEGADYNE MEDICAL PRODUCTS, INC. (1)
6053910 Capacitive reusable electrosurgical return electrode 145 1996
 
ELLMAN INTERNATIONAL, INC. (1)
5342356 Electrical coupling unit for electrosurgery 180 1992
 
KIRWAN SURGICAL PRODUCTS LLC (1)
5196009 Non-sticking electrosurgical device having nickel tips 288 1991
 
INFINEON TECHNOLOGIES AG (1)
6222356 Current mode switching regulator configured such that a measuring resistor is not needed to measure the current at an inductor 104 1999
 
LINEAR TECHNOLOGY CORPORATION (1)
6498466 Cancellation of slope compensation effect on current limit 113 2000
 
CARDIAC PATHWAYS CORPORATION (1)
5820568 Apparatus and method for aiding in the positioning of a catheter 223 1996
 
Cardiac Pacemakers, Inc. (2)
5971980 System for controlling the energy delivered to a patient for ablation 332 1997
6391024 RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering 372 1999
 
SMITH & NEPHEW, INC. (1)
2004/0030,330 Electrosurgery systems 514 2003
 
Cimarron Instruments, Inc. (1)
4334539 Electrosurgical generator control apparatus 150 1980
 
EP Technologies, Inc. (13)
5383874 Systems for identifying catheters and monitoring their use 676 1992
5423808 Systems and methods for radiofrequency ablation with phase sensitive power detection 416 1993
5651780 Systems for identifying catheters and monitoring their use 473 1994
5688267 Systems and methods for sensing multiple temperature conditions during tissue ablation 587 1995
5769847 Systems and methods for controlling tissue ablation using multiple temperature sensing elements 314 1996
5755715 Tissue heating and ablation systems and methods using time-variable set point temperature curves for monitoring and control 266 1996
5702386 Non-linear control systems and methods for heating and ablating body tissue 281 1996
5897552 Electrode and associated systems using thermally insulated temperature sensing elements 417 1997
6053912 Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes 243 1997
6113591 Systems and methods for sensing sub-surface temperatures in body tissue 120 1997
6056745 Systems and methods for obtaining desired lesion characteristics while ablating body tissue 205 1997
6014581 Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure 288 1998
6786905 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body 321 2002
 
COVIDIEN AG (44)
5772659 Electrosurgical generator power control circuit and method 476 1995
6033399 Electrosurgical generator with adaptive power control 800 1997
6228080 Electrosurgical generator with adaptive power control 463 1998
6398779 Vessel sealing system 529 1999
6740079 Electrosurgical generator 231 2001
6796981 Vessel sealing system 459 2002
7004174 Electrosurgery with infiltration anesthesia 112 2002
6860881 Multiple RF return pad contact detection system 123 2002
* 7137980 Method and system for controlling output of RF medical generator 517 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 111 2003
RE40388 Electrosurgical generator with adaptive power control 171 2003
7364577 Vessel sealing system 216 2003
6923804 Electrosurgical generator 228 2003
2008/0125,767 Thermocouple Measurement Circuit 89 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 243 2003
7131860 Connector systems for electrosurgical generator 319 2003
7044948 Circuit for controlling arc energy from an electrosurgical generator 243 2003
7147638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 298 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 270 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 71 2004
7160293 Multiple RF return pad contact detection system 104 2004
7396336 Switched resonant ultrasonic power amplifier system 236 2004
7303557 Vessel sealing system 356 2004
2005/0203,504 Method and system for controlling output of RF medical generator 271 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 68 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 207 2005
2006/0079,871 Universal foot switch contact port 59 2005
2007/0093,801 Circuit and method for reducing stored energy in an electrosurgical generator 77 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 63 2005
2006/0161,148 Circuit and method for controlling an electrosurgical generator using a full bridge topology 115 2006
2007/0173,810 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 57 2006
2006/0178,664 Circuit for controlling arc energy from an electrosurgical generator 60 2006
2007/0208,339 System and method for controlling electrosurgical snares 80 2006
2007/0225,698 System and method for generating radio frequency energy 54 2006
2006/0224,152 Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator 104 2006
2007/0250,052 Arc based adaptive control system for an electrosurgical unit 52 2006
2007/0265,612 System and method for reducing leakage current in an electrosurgical generator 68 2006
2008/0039,831 System and method for measuring initial tissue impedance 98 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 163 2006
2008/0082,094 Transformer for RF voltage sensing 57 2006
2007/0038,209 Method and system for controlling output of RF medical generator 69 2006
2007/0173,805 Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm 161 2007
2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 371 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 73 2007
 
LAZURE SCIENTIFIC, INC. (1)
5908444 Complex frequency pulsed electromagnetic generator and method of use 114 1997
 
VENTURE LENDING & LEASING, INC. (1)
5370675 Medical probe device and method 994 1993
 
CONWAY STUART MEDICAL, INC. (1)
6358245 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 283 1999
 
ABIOMED, INC. (1)
7062331 Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system 93 2002
 
G2 Design Limited (3)
5099840 Diathermy unit 460 1989
5423810 Cauterising apparatus 488 1993
5451224 Apparatus for radio frequency bipolar electrosurgery 498 1993
 
YAZAKI CORPORATION (1)
5961344 Cam-actuated terminal connector 88 1997
 
HAIR FREE CENTERS, INC. (1)
4372315 Impedance sensing epilator 100 1980
 
FREESCALE SEMICONDUCTOR, INC. (1)
4931717 Load response control and method 90 1989
 
LIVE TISSUE CONNECT, INC. (3)
6562037 Bonding of soft biological tissues by passing high frequency electric current therethrough 394 1998
6733498 System and method for control of tissue welding 354 2002
2004/0068,304 Bonding of soft biological tissues by passing high freouency electric current therethrough 106 2003
 
AUSLO RESEARCH LLC (1)
5330518 Method for treating interstitial tissue associated with microwave thermal therapy 351 1992
 
INTEGRA ME GMBH (4)
5133711 Electric surgical high-frequency instrument 97 1990
5976128 Electrosurgical high frequency generator 191 1997
5951545 High-frequency surgical instrument and method of operating the same 135 1997
6074388 Electrically operated medical apparatus 106 1998
 
DIPOLAR LIMITED (1)
6010499 Electrosurgical cutting and coagulation apparatus 129 1997
 
DRG (UK) LIMITED (1)
4384582 Patient plate for diathermy apparatus, and diathermy apparatus fitted with it 122 1980
 
Omron Tateisi Electronics Co. (1)
4993430 Electrode device for high frequency thermotherapy apparatus 145 1989
 
MEDTRONIC CRYOCATH LP (1)
5281213 Catheter for ice mapping and ablation 631 1992
 
ORATEC INTERVENTIONS, INC. (3)
6162217 Method and apparatus for controlling a temperature-controlled probe 152 1999
6350262 Method and apparatus for applying thermal energy to tissue asymetrically 164 2000
6939346 Method and apparatus for controlling a temperature-controlled probe 310 2002
 
MEDTRONIC, INC. (17)
5342409 Position-responsive neuro stimulator 488 1991
5674217 Heart synchronized extractor for an implanted object 137 1993
5534018 Automatic lead recognition for implantable medical device 305 1994
5643330 Multichannel apparatus for epidural spinal cord stimulation 448 1996
5702429 Neural stimulation techniques with feedback 341 1996
5938690 Pain management system and method 533 1996
5925070 Techniques for adjusting the locus of excitation of electrically excitable tissue 231 1997
6063078 Method and apparatus for tissue ablation 275 1997
5948007 Dual channel implantation neurostimulation techniques 168 1997
5814092 Neural stimulation techniques with feedback 249 1997
5836990 Method and apparatus for determining electrode/tissue contact 324 1997
5913882 Neural stimulation techniques with feedback 281 1998
6648883 Ablation system and method of use 268 2002
6849073 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 462 2002
6989010 Ablation system and method of use 226 2003
7367972 Ablation system 152 2003
* 7247155 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 230 2004
 
MICROLINE SURGICAL, INC. (4)
5836943 Electrosurgical generator 211 1996
6238387 Electrosurgical generator 270 1998
6692489 Electrosurgical mode conversion system 150 2000
7175621 Electrosurgical mode conversion system 102 2003
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
4788634 Resonant forward converter 141 1987
 
ENTEGRIS, INC. (1)
2004/0121,494 Infrared thermopile detector system for semiconductor process monitoring and control 2 2003
 
JPMORGAN CHASE BANK, N.A. (1)
* 5445638 Bipolar coagulation and cutting forceps 631 1993
 
MEDTRONIC CARDIORHYTHM (2)
5540681 Method and system for radiofrequency ablation of tissue 543 1994
5584830 Method and system for radiofrequency ablation of cardiac tissue 250 1994
 
GYRUS MEDICAL LIMITED CHARTERHOUSE (1)
5438302 Electrosurgical radiofrequency generator having regulated voltage across switching device 819 1994
 
ENGINEERING & RESEARCH ASSOCIATES, INC. (1)
5868737 Apparatus and method for determining ablation 157 1997
 
E.P. Technologies, Inc. (1)
5722975 Systems for radiofrequency ablation with phase sensitive power detection and control 188 1995
 
ASPEN LABORATORIES, INC. A CO CORP. (2)
4569345 High output electrosurgical unit 122 1984
4848335 Return electrode contact monitor 140 1988
 
GENERAL ELECTRIC COMPANY (1)
4559496 LCD Hook-on digital ammeter 88 1984
 
STORZ INSTRUMENT COMPANY (2)
5249121 Remote control console for surgical control system 229 1989
5157603 Control system for ophthalmic surgical instruments 122 1989
 
ST. JUDE MEDICAL, INC. (1)
5300068 Electrosurgical apparatus 659 1992
 
KYOCERA CORPORATION (1)
5151102 Blood vessel coagulation/stanching device 511 1990
 
Storz Endoskop GmbH (3)
6261285 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 80 1998
6275786 Device for monitoring a neutral electrode during HF surgery 110 1999
6864686 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 115 2002
 
The B. F. Goodrich Company (1)
4514619 Indirect current monitoring via voltage and impedance monitoring 119 1982
 
BROWN, RUSSELL A., TRUSTEE OF THE RUSSELL A. FAMILY LIVING TRUST (1)
4608977 System using computed tomography as for selective body treatment 399 1982
 
DELL PRODUCTS L.P. (1)
6693782 Surge suppression for current limiting circuits 74 2000
 
ARTHROCARE CORPORATION (3)
6142992 Power supply for limiting power in electrosurgery 359 1998
6235020 Power supply and methods for fluid delivery in electrosurgery 397 1998
6296636 Power supply and methods for limiting power in electrosurgery 389 1999
 
BAUSCH & LOMB INCORPORATED (1)
6055458 Modes/surgical functions 104 1997
 
REFRACTEC INC. (1)
5749871 Method and apparatus for modifications of visual acuity by thermal means 142 1994
 
ERICSSON RAYNET (2)
5694304 High efficiency resonant switching converters 112 1995
5712772 Controller for high efficiency resonant switching converters 171 1995
 
ETHICON LLC (1)
7060063 Devices and methods for controlling initial movement of an electrosurgical electrode 100 2003
 
RDM International, Inc. (1)
4644955 Circuit apparatus and method for electrothermal treatment of cancer eye 120 1985
 
MAQUET CARDIOVASCULAR LLC (1)
2004/0102,772 Apparatus and method for minimally invasive surgery using rotational cutting tool 35 2003
 
ESC MEDICAL SYSTEMS LTD. (1)
5556396 Method for tubal electroligation 283 1995
 
SENORX, INC. (2)
6620157 High frequency power source 217 2000
7175618 High frequency power source 72 2003
 
CYNOSURE, INC. (5)
5954686 Dual-frequency electrosurgical instrument 147 1998
6238388 Low-voltage electrosurgical apparatus 120 1999
6652514 Intelligent selection system for electrosurgical instrument 328 2001
6712813 RF probe for electrosurgical instrument 135 2001
6994707 Intelligent selection system for electrosurgical instrument 259 2003
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
9924993 Electrosurgical system for tissue cauterization 0 2014
9931131 In vivo attachable and detachable end effector assembly and laparoscopic surgical instrument and methods therefor 0 2015
 
TYCO HEALTHCARE GROUP LP (1)
* 2012/0022,521 System And Method For Measuring Initial Tissue Impedance 12 2011
 
Coviden IP (1)
D680220 Slider handle for laparoscopic device 18 2012
 
COVIDIEN AG (15)
8267928 System and method for closed loop monitoring of monopolar electrosurgical apparatus 3 2011
8241278 Laparoscopic apparatus for performing electrosurgical procedures 7 2011
8267929 Method and system for programming and controlling an electrosurgical generator system 18 2011
8647340 Thermocouple measurement system 0 2012
8485993 Switched resonant ultrasonic power amplifier system 8 2012
9168089 Method and system for controlling output of RF medical generator 2 2012
9113900 Method and system for controlling output of RF medical generator 2 2012
8475447 System and method for closed loop monitoring of monopolar electrosurgical apparatus 3 2012
8597296 Bipolar forceps having monopolar extension 3 2012
8591506 Vessel sealing system 100 2012
8966981 Switched resonant ultrasonic power amplifier system 1 2013
9463067 Vessel sealing system 0 2013
9375270 Vessel sealing system 0 2013
9375271 Vessel sealing system 0 2013
9768373 Switched resonant ultrasonic power amplifier system 0 2015
 
COVIDIEN LP (17)
* 8215182 Apparatus and method for measuring pressure between jaw members 20 2008
* 2011/0036,183 APPARATUS AND METHOD FOR MEASURING PRESSURE BETWEEN JAW MEMBERS 26 2008
9033973 System and method for DC tissue impedance sensing 2 2011
8898888 System for manufacturing electrosurgical seal plates 12 2012
9113940 Trigger lockout and kickback mechanism for surgical instruments 27 2012
8568444 Method of transferring rotational motion in an articulating surgical instrument 5 2012
9028493 In vivo attachable and detachable end effector assembly and laparoscopic surgical instrument and methods therefor 1 2012
8454602 Apparatus, system, and method for performing an electrosurgical procedure 27 2012
8523898 Endoscopic electrosurgical jaws with offset knife 30 2012
8486061 Imaginary impedance process monitoring and intelligent shut-off 3 2012
8858554 Apparatus, system, and method for performing an electrosurgical procedure 4 2013
9872719 Systems and methods for generating electrosurgical energy using a multistage power converter 0 2014
9655670 Systems and methods for measuring tissue impedance through an electrosurgical cable 0 2014
9636165 Systems and methods for measuring tissue impedance through an electrosurgical cable 0 2014
9345535 Apparatus, system and method for performing an electrosurgical procedure 0 2014
9265552 Method of manufacturing electrosurgical seal plates 1 2014
9750561 System for manufacturing electrosurgical seal plates 0 2016
* Cited By Examiner

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