US Patent No: 8,034,049 - Analytics, PDF, Full Text and PAIR Access

Number of patents in Portfolio can not be more than 2000

System and method for measuring initial tissue impedance

2 Status Updates

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
COVIDIEN AGNEUHAUSEN AM RHEINFALL646

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Denham, Amy Boulder, US 7 709
Odom, Darren Longmont, US 20 2291
Weinberg, Craig Denver, US 27 2509

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MINNESOTA MINING AND MANUFACTURING COMPANY (1)
5,797,902 Biomedical electrode providing early detection of accidental detachment 103 1996
 
Other [Check patent profile for assignment information] (18)
4,343,308 Surgical ground detector 109 1980
4,492,231 Non-sticking electrocautery system and forceps 594 1982
4,472,661 High voltage, low power transformer for efficiently firing a gas discharge luminous display 87 1982
4,657,015 Control device for a high frequency surgical apparatus 147 1985
4,651,280 Electrosurgical control system using tissue conductivity 134 1985
4,741,334 Monitoring arrangement for a high frequency surgery device 117 1986
4,754,757 Method and apparatus for monitoring the surface contact of a neutral electrode of a HF-surgical apparatus 152 1986
4,890,610 Bipolar forceps 141 1989
5,108,389 Automatic smoke evacuator activator system for a surgical laser apparatus and method therefor 115 1990
5,430,434 Portable surgical early warning device 84 1993
5,921,982 Systems and methods for ablating body tissue 474 1997
5,951,546 Electrosurgical instrument for tissue ablation, an apparatus, and a method for providing a lesion in damaged and diseased tissue from a mammal 368 1997
6,132,429 Radiofrequency medical instrument and methods for luminal welding 122 1999
2003/0199,863 Systems and methods for controlling power in an electrosurgical probe 205 2002
2003/0181,898 RF filter for an electrosurgical generator 89 2003
2004/0015,216 Self-evacuating electrocautery device 80 2003
2004/0167,508 Vessel sealing system 93 2004
2005/0004,569 Coagulating electrosurgical instrument with tissue dam 157 2004
 
SHERWOOD SERVICES AG (14)
4,416,276 Adaptive, return electrode monitoring system 444 1981
4,416,277 Return electrode monitoring system for use during electrosurgical activation 173 1981
4,565,200 Universal lesion and recording electrode system 599 1982
4,658,819 Electrosurgical generator 268 1983
4,632,109 Circuitry for processing requests made from the sterile field of a surgical procedure to change the output power level of an electrosurgical generator 93 1984
4,827,927 Apparatus for changing the output power level of an electrosurgical generator while remaining in the sterile field of a surgical procedure 168 1984
4,658,820 Electrosurgical generator with improved circuitry for generating RF drive pulse trains 127 1985
4,907,589 Automatic over-temperature control apparatus for a therapeutic heating device 603 1988
4,966,597 Thermometric cardiac tissue ablation electrode with ultra-sensitive temperature detection 674 1988
6,451,015 Method and system for menu-driven two-dimensional display lesion generator 266 1998
2005/0021,020 System for activating an electrosurgical instrument 72 2004
2007/0173,802 Method and system for transmitting data across patient isolation barrier 63 2006
2007/0173,813 System and method for tissue sealing 322 2006
2007/0282,320 System and method for controlling tissue heating rate prior to cellular vaporization 90 2006
 
LIGHTWAVE ABLATIOIN SYSTEMS (1)
5,500,012 Ablation catheter system 767 1994
 
Somnus Medical Technologies, Inc. (3)
6,231,569 Dual processor architecture for electro generator 128 1998
6,293,941 Method and apparatus for impedance measurement in a multi-channel electro-surgical generator 132 1998
6,309,386 Linear power control with PSK regulation 88 1998
 
IXYS CORPORATION (2)
5,500,616 Overvoltage clamp and desaturation detection circuit 89 1995
5,596,466 Intelligent, isolated half-bridge power module 121 1995
 
ASEA BROWN BOVERI AG (1)
4,942,313 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 110 1988
 
SAMSUNG ELECTRONICS CO., LTD. (2)
2007/0173,803 System and method for terminating treatment in impedance feedback algorithm 101 2006
* 2010/0042,093 System and method for terminating treatment in impedance feedback algorithm 31 2006
 
COOPER INDUSTRIES, INC. (1)
4,630,218 Current measuring apparatus 116 1985
 
Rocky Mountain Research, Inc. (1)
5,024,668 Retrograde perfusion system, components and method 244 1987
 
Mehl; Thomas L. (1)
4,566,454 Selected frequency hair removal device and method 92 1981
 
SURGICAL DESIGN CORPORATION (1)
4,436,091 Surgical cutting instrument with release mechanism 116 1981
 
GARITO, JON C. (1)
4,463,759 Universal finger/foot switch adaptor for tube-type electrosurgical instrument 154 1982
 
ELEKTA AB (PUBL) (1)
6,629,973 Method and an apparatus for controlled destruction of tissue 66 2001
 
ACLARA TECHNOLOGIES LLC (1)
5,696,441 Linear alternating current interface for electronic meters 115 1994
 
ETHICON ENDO-SURGERY, INC. (10)
5,540,684 Method and apparatus for electrosurgically treating tissue 489 1994
5,558,671 Impedance feedback monitor for electrosurgical instrument 696 1994
5,707,369 Temperature feedback monitor for hemostatic surgical instrument 459 1995
5,693,042 Identification device for surgical instrument 320 1995
5,817,093 Impedance feedback monitor with query electrode for electrosurgical instrument 538 1996
* 5,797,941 Surgical instrument with expandable cutting element 307 1997
6,338,657 Hand piece connector 117 2000
6,558,376 Method of use of an ultrasonic clamp and coagulation apparatus with tissue support surface 131 2001
2002/0107,517 Electrosurgical instrument for coagulation and cutting 257 2002
2002/0111,624 Coagulating electrosurgical instrument with tissue dam 225 2002
 
Medical Scientific, Inc. (3)
5,207,691 Electrosurgical clip applicator 364 1991
5,201,900 Bipolar surgical clip 182 1992
5,713,896 Impedance feedback electrosurgical system 491 1995
 
OLYMPUS CORPORATION (8)
6,730,080 Electric operation apparatus 105 2001
6,740,085 Heating treatment system 100 2001
6,679,875 Medical treatment system 126 2002
6,855,142 Electrosurgical device for treating body tissue with high-frequency power 92 2002
7,063,692 Surgical operation system 71 2003
7,172,591 Electric operation apparatus 74 2003
7,001,381 Electric operation apparatus 175 2003
2004/0133,189 Surgical operation apparatus and control method thereof 139 2003
 
HUGHES ELECTRONICS CORPORATION (1)
4,992,719 Stable high voltage pulse power supply 62 1989
 
ETHICON, INC. (1)
5,403,312 Electrosurgical hemostatic device 1208 1993
 
PREFERENTIAL, INC. (1)
5,718,246 Preferential induction of electrically mediated cell death from applied pulses 105 1996
 
ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH (1)
5,531,774 Multichannel implantable cochlear stimulator having programmable bipolar, monopolar or multipolar electrode configurations 131 1994
 
LOCKHEED MARTIN CORPORATION (1)
5,414,238 Resonant power supply for an arcjet thruster 95 1992
 
Diapulse Corporation of America (1)
6,458,121 Apparatus for athermapeutic medical treatments 148 1996
 
CHASE MANHATTAN BANK USA, NATIONAL ASSOCIATION (1)
5,766,165 Return path monitoring system 111 1995
 
KARL STORZ GMBH & CO. KG (3)
5,749,869 High-frequency surgical generator for cutting tissue 270 1995
5,868,739 System for cutting biological tissue 104 1995
5,846,236 High frequency-surgical generator for adjusted cutting and coagulation 109 1996
 
CORDIS CORPORATION (1)
4,735,204 System for controlling an implanted neural stimulator 140 1986
 
The Regents of the University of California (1)
5,385,148 Cardiac imaging and ablation catheter 608 1993
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5,729,448 Low cost highly manufacturable DC-to-DC power converter 114 1996
 
PALOMAR MEDICAL TECHNOLOGIES, LLC (3)
2003/0195,494 Light energy delivery head 13 2003
2003/0195,494 Light energy delivery head 13 2003
2003/0195,494 Light energy delivery head 13 2003
 
University of Washington (2)
4,582,057 Fast pulse thermal cautery probe 190 1983
4,691,703 Thermal cautery system 135 1986
 
KAI DESINGER (1)
6,524,308 Electrode arrangement for electrothermal treatment of human or animal bodies 95 2000
 
HENRY, MCCORD, BEAN & MILLER, P.L.L.C. (1)
5,792,138 Cordless bipolar electrocautery unit with automatic power control 190 1996
 
OLYMPUS OPTICAL CO., LTD. (16)
4,662,383 Endotract antenna device for hyperthermia 257 1983
4,615,330 Noise suppressor for electronic endoscope 125 1984
4,961,435 High-frequency capacitive heating electrode device 153 1988
5,425,704 Apparatus for generating ultrasonic oscillation 141 1992
5,540,683 High frequency cauterizing apparatus 163 1994
5,931,836 Electrosurgery apparatus and medical apparatus combined with the same 163 1997
6,063,075 Electrosurgical apparatus and separation detecting method capable of stably monitoring separation state of return electrode 118 1998
6,383,183 High frequency treatment apparatus 112 1999
6,306,131 Electric medical apparatus 88 1999
6,436,096 Electrosurgical apparatus with stable coagulation 100 1999
6,464,696 Electrical surgical operating apparatus 82 2000
6,663,623 Electric surgical operation apparatus 84 2000
6,666,860 Electric treatment system 165 2000
6,635,057 Electric operation apparatus 107 2000
6,623,423 Surgical operation system 90 2001
6,511,476 Electrosurgical apparatus with stable coagulation 93 2001
 
COLLABO INNOVATIONS, INC. (1)
7,250,746 Current mode switching regulator with predetermined on time 70 2005
 
CYTYC SURGICAL PRODUCTS, LLC (1)
6,508,815 Radio-frequency generator for powering an ablation device 320 1999
 
BIRTCHER CORPORATION, THE A CORP. OF CALIFORNIA (1)
4,492,832 Hand-controllable switching device for electrosurgical instruments 123 1982
 
BIRTCHER MEDICAL SYSTEMS, INC. (1)
RE34432 Power control technique for beam-type electrosurgical unit 94 1992
 
ONESYS OY (1)
5,413,573 Device for surgical procedures 290 1994
 
Curon Medical, Inc. (1)
2004/0172,016 Systems and methods for monitoring and controlling use of medical devices 132 2004
 
WILES, TERRY L. (1)
5,417,719 Method of using a spinal cord stimulation lead 362 1993
 
UTAH MEDICAL PRODUCTS INC. (1)
5,160,334 Electrosurgical generator and suction apparatus 243 1991
 
TEXAS INSTRUMENTS INCORPORATED (1)
6,188,211 Current-efficient low-drop-out voltage regulator with improved load regulation and frequency response 173 1999
 
CORDIS WEBSTER, INC. (1)
5,462,521 Fluid cooled and perfused tip for a catheter 482 1993
 
RADIONICS, INC. (1)
4,411,266 Thermocouple radio frequency lesion electrode 548 1980
 
Hemostatic Surgery Corporation (2)
5,472,443 Electrosurgical apparatus employing constant voltage and methods of use 494 1994
5,445,635 Regulated-current power supply and methods for resistively-heated surgical instruments 124 1994
 
STRYKER CORPORATION (1)
7,041,096 Electrosurgical generator apparatus 108 2002
 
NTERO SURGICAL, INC. (1)
6,645,198 Systems and methods for reducing post-surgical complications 91 2000
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
5,323,778 Method and apparatus for magnetic resonance imaging and heating tissues 225 1991
 
Hemostatix Corporation (1)
5,400,267 Local in-device memory feature for electrically powered medical equipment 503 1992
 
CARDIORHYTHM A CA CORPORATION (1)
5,573,533 Method and system for radiofrequency ablation of cardiac tissue 389 1992
 
ERBE ELEKTROMEDIZIN GMBH (8)
4,658,815 High-frequency electrosurgical unit with timed safety shut down interlock 91 1986
4,860,745 High frequency electrosurgical apparatus for thermal coagulation of biologic tissues 171 1987
4,922,210 Feedback-coupled high-frequency power oscillator 101 1989
4,969,885 High frequency surgery device for cutting and/or coagulating biologic tissue 251 1990
5,087,257 Apparatus for monitoring the application of neutral electrodes on a patient undergoing high frequency electro-surgery 136 1990
5,267,997 High-frequency electrosurgery apparatus with limitation of effective value of current flowing through a surgical instrument 381 1992
7,066,933 High-frequency generator for performing high-frequency surgery having adjustable power limitation, and method for controlling the power limitation 89 2001
2004/0044,339 Method for operating an instrument for use in high-frequency surgery, and electrosurgical device 48 2003
 
Vidamed, Inc. (1)
5,871,481 Tissue ablation apparatus and method 193 1997
 
SUROS SURGICAL SYSTEMS, INC. (1)
5,685,840 Method and apparatus for minimally invasive tissue removal 152 1995
 
SILICON VALLEY BANK (1)
6,517,538 Temperature-controlled snare 69 1999
 
Medical Plastics, Inc. (2)
4,303,073 Electrosurgery safety monitor 144 1980
4,494,541 Electrosurgery safety monitor 149 1981
 
Post N Mail, L.C. (1)
5,658,322 Bio-active frequency generator and method 132 1995
 
JDS UNIPHASE CORPORATION (1)
4,959,606 Current mode switching regulator with programmed offtime 92 1989
 
MDT CORPORATION (1)
4,938,761 Bipolar electrosurgical forceps 370 1990
 
MORVIL TECHNOLOGY LLC (1)
5,383,917 Device and method for multi-phase radio-frequency ablation 832 1991
 
DATEX-OHMEDA, INC. (1)
6,560,470 Electrical lockout photoplethysmographic measurement system 162 2000
 
RICHARD WOLF GMBH (2)
4,995,877 Device with a rotationally-driven surgical instrument 242 1989
5,324,283 Medical instrument having a switch for controlling an external device 103 1992
 
CENTRAL BANK & TRUST COMPANY, A KY BANKING CORP. (1)
4,397,314 Method and apparatus for controlling and optimizing the heating pattern for a hyperthermia system 342 1981
 
PACKAGING SERVICE CORPORATION OF KENTUCKY, A CORP. OF KY (1)
4,590,934 Bipolar cutter/coagulator 428 1983
 
ANGIODYNAMICS, INC. (4)
5,458,597 Device for treating cancer and non-malignant tumors and methods 457 1993
5,536,267 Multiple electrode ablation apparatus 698 1994
5,599,345 RF treatment apparatus 469 1994
6,663,624 RF treatment apparatus 135 1999
 
3M INNOVATIVE PROPERTIES COMPANY (1)
6,171,304 Method and apparatus for controlling contact of biomedical electrodes with patient skin 128 1999
 
ASTEC INTERNATIONAL LIMITED (1)
4,887,199 Start circuit for generation of pulse width modulated switching pulses for switch mode power supplies 121 1987
 
Medical Research Associates, Ltd. #1 (1)
4,378,801 Electrosurgical generator 125 1980
 
SYNERON MEDICAL LTD. (1)
5,569,242 Method and apparatus for controlled contraction of soft tissue 624 1995
 
IRVINE BIOMEDICAL, INC. (1)
5,954,719 System for operating a RF ablation generator 245 1998
 
I.C. MEDICAL, INC. (1)
5,836,909 Automatic fluid control system for use in open and laparoscopic laser surgery and electrosurgery and method therefor 153 1996
 
MEDTRONIC ADVANCED ENERGY LLC (2)
6,689,131 Electrosurgical device having a tissue reduction sensor 240 2001
* 6,953,461 Fluid-assisted medical devices, systems and methods 308 2002
 
CONMED CORPORATION (14)
5,267,994 Electrosurgical probe 419 1992
5,300,070 Electrosurgical trocar assembly with bi-polar electrode 147 1992
5,432,459 Leakage capacitance compensating current sensor for current supplied to medical device loads with unconnected reference conductor 88 1993
5,436,566 Leakage capacitance compensating current sensor for current supplied to medical device loads 214 1993
5,599,348 Electrosurgical trocar assembly 109 1994
5,496,313 System for detecting penetration of medical instruments 87 1994
5,626,575 Power level control apparatus for electrosurgical generators 147 1995
5,830,212 Electrosurgical generator and electrode 151 1996
2004/0097,912 Electrosurgical generator and method with removable front panel having replaceable electrical connection sockets and illuminated receptacles 101 2002
6,830,569 Electrosurgical generator and method for detecting output power delivery malfunction 143 2002
6,875,210 Electrosurgical generator and method for cross-checking mode functionality 95 2002
6,939,347 Electrosurgical generator and method with voltage and frequency regulated high-voltage current mode power supply 113 2002
6,942,660 Electrosurgical generator and method with multiple semi-autonomously executable functions 97 2002
6,948,503 Electrosurgical generator and method for cross-checking output power 114 2002
 
LEIBINGER GMBH (1)
4,474,179 Method and apparatus for the high frequency coagulation of protein for surgical purposes 221 1982
 
American Cardiac Ablation Co., Inc. (5)
5,341,807 Ablation catheter positioning system 475 1992
5,334,193 Fluid cooled ablation catheter 936 1992
5,342,357 Fluid cooled electrosurgical cauterization system 607 1992
5,383,876 Fluid cooled electrosurgical probe for cutting and cauterizing tissue 692 1994
5,733,281 Ultrasound and impedance feedback system for use with electrosurgical instruments 120 1996
 
THE JOHNS HOPKINS UNIVERSITY (1)
5,370,672 Computer-controlled neurological stimulation system 253 1992
 
PROJECT TROJAN INTELLECTUAL PROPERTY ACQUISITION, LLC (1)
6,855,141 Method for monitoring impedance to control power and apparatus utilizing same 99 2002
 
ATRICURE, INC. (1)
6,113,596 Combination monopolar-bipolar electrosurgical instrument system, instrument and cable 396 1997
 
BOSTON SCIENTIFIC SCIMED, INC. (14)
5,122,137 Temperature controlled RF coagulation 638 1990
5,103,804 Expandable tip hemostatic probes and the like 398 1990
5,348,554 Catheter for RF ablation with cooled electrode 864 1992
5,403,311 Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue 985 1993
5,409,000 Endocardial mapping and ablation system utilizing separately controlled steerable ablation catheter with ultrasonic imaging capabilities and method 429 1993
5,954,717 Method and system for heating solid tissue 216 1997
6,080,149 Method and apparatus for monitoring solid tissue heating 162 1998
6,123,702 Systems and methods for controlling power in an electrosurgical probe 309 1998
6,245,065 Systems and methods for controlling power in an electrosurgical probe 343 1998
6,337,998 Apparatus and method for treating tumors near the surface of an organ 144 1999
6,511,478 Medical probe with reduced number of temperature sensor wires 205 2000
6,685,703 Generator and probe adapter 95 2001
6,685,700 Method and system for heating solid tissue 127 2001
6,790,206 Compensation for power variation along patient cables 116 2002
 
LINVATEC CORPORATION (1)
4,739,759 Microprocessor controlled electrosurgical generator 253 1985
 
VALLEYLAB INC. (1)
6,251,106 Electrosurgical generator power control circuit and method 87 1998
 
GYRUS MEDICAL, INC. (1)
4,903,696 Electrosurgical generator 229 1988
 
GYRUS MEDICAL LIMITED (25)
5,647,869 Electrosurgical apparatus 647 1995
6,293,942 Electrosurgical generator method 476 1996
6,074,386 Electrosurgical instrument and an electrosurgical electrode assembly 617 1997
6,093,186 Electrosurgical generator and system 453 1997
6,416,509 Electrosurgical generator and system 426 1998
6,056,746 Electrosurgical instrument 510 1998
6,261,286 Electrosurgical generator and system 397 1998
6,306,134 Electrosurgical generator and system 419 1998
6,364,877 Electrosurgical generator and system 363 1998
6,228,081 Electrosurgery system and method 395 1999
6,325,799 Electrosurgical instrument 365 1999
6,582,427 Electrosurgery system 342 2000
6,398,781 Electrosurgery system 291 2000
6,547,786 Electrosurgery system and instrument 254 2000
6,758,846 Electrosurgical instrument and an electrosurgery system including such an instrument 310 2001
6,893,435 Electrosurgical system 286 2001
6,843,789 Electrosurgical system 303 2002
2003/0139,741 Surgical instrument 465 2002
2003/0153,908 Electrosurgery system 237 2003
6,929,641 Electrosurgical system 239 2003
6,966,907 Electrosurgical generator and system 395 2003
7,220,260 Electrosurgical system 263 2003
7,214,224 Electrosurgical system 231 2003
7,211,081 Electrosurgical generator 236 2003
7,282,048 Electrosurgical generator and system 263 2004
 
United States Surgical Corporation (1)
5,483,952 Handle for surgical instruments 122 1994
 
VEIN RX, INC. (1)
2004/0015,159 Methods and apparatus for treating the wall of a blood vessel with electromagnetic energy 62 2003
 
BOSTON SCIENTIFIC CORPORATION (1)
5,588,432 Catheters for imaging, sensing electrical potentials, and ablating tissue 812 1995
 
INTEGRA BURLINGTON MA, INC. (1)
5,230,623 Operating pointer with interactive computergraphics 588 1991
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
6,155,975 Phacoemulsification apparatus with personal computer 111 1998
 
WELLS FARGO BANK, NATIONAL ASSOCIATION FLAIR INDUSTRIAL PARK RCBO (6)
4,429,694 Electrosurgical generator 122 1981
4,438,766 Electrosurgical generator 93 1981
4,437,464 Electrosurgical generator safety apparatus 140 1981
4,559,943 Electrosurgical generator 136 1983
4,727,874 Electrosurgical generator with high-frequency pulse width modulated feedback power control 335 1984
5,152,762 Current leakage control for electrosurgical generator 152 1990
 
TYCO HEALTHCARE GROUP LP (1)
2007/0173,804 System and method for tissue sealing 84 2007
 
SYNERGETICS USA, INC. (1)
5,318,563 Bipolar RF generator 296 1992
 
TYCO HEALTHCARE GROUP AG (35)
5,233,515 Real-time graphic display of heat lesioning parameters in a clinical lesion generator system 209 1990
5,334,183 Endoscopic electrosurgical apparatus 748 1992
5,370,645 Electrosurgical processor and method of use 368 1993
5,372,596 Apparatus for leakage control and method for its use 293 1993
5,443,463 Coagulating forceps 712 1993
5,423,809 Electrosurgical control for a trocar 309 1993
5,496,312 Impedance and temperature generator control 1044 1993
6,210,403 Automatic control for energy from an electrosurgical generator 288 1993
5,433,739 Method and apparatus for heating an intervertebral disc for relief of back pain 600 1993
5,514,129 Automatic bipolar control for an electrosurgical generator 293 1993
5,422,567 High frequency power measurement 439 1993
5,571,147 Thermal denervation of an intervertebral disc for relief of back pain 311 1994
5,613,966 System and method for accessory rate control 246 1994
5,695,494 Rem output stage topology 263 1994
5,599,344 Control apparatus for electrosurgical generator power output 289 1995
5,628,745 Exit spark control for an electrosurgical generator 190 1995
5,720,744 Control system for neurosurgery 495 1995
5,827,271 Energy delivery system for vessel sealing 530 1995
6,241,725 High frequency thermal ablation of cancerous tumors and functional targets with image data assistance 248 1996
5,983,141 Method and apparatus for altering neural tissue function 331 1996
6,068,627 Smart recognition apparatus and method 377 1997
6,102,497 Universal cart 75 1998
6,203,541 Automatic activation of electrosurgical generator bipolar output 169 1999
6,258,085 Electrosurgical return electrode monitor 132 1999
6,246,912 Modulated high frequency tissue modification 417 1999
6,402,741 Current and status monitor 118 1999
6,402,743 Smart recognition apparatus and method 161 2000
6,506,189 Cool-tip electrode thermosurgery system 391 2000
6,575,969 Cool-tip radiofrequency thermosurgery electrode system for tumor ablation 571 2000
6,565,559 Electrosurgical return electrode monitor 106 2001
6,755,825 Electrosurgical device having a dielectric seal 109 2001
6,685,701 Smart recognition apparatus and method 166 2002
7,300,435 Automatic control system for an electrosurgical generator 287 2003
7,255,694 Variable output crest factor electrosurgical generator 69 2003
7,044,949 Smart recognition apparatus and method 105 2004
 
MEDERI THERAPEUTICS, INC. (5)
6,273,886 Integrated tissue heating and cooling apparatus 385 1999
6,464,689 Graphical user interface for monitoring and controlling use of medical devices 148 2000
6,783,523 Unified systems and methods for controlling use and operation of a family of different treatment devices 139 2002
6,733,495 Systems and methods for monitoring and controlling use of medical devices 148 2002
6,994,704 Graphical user interface for monitoring and controlling use of medical devices 117 2002
 
Braun Aktiengesellschaft (1)
4,376,263 Battery charging circuit 119 1981
 
RESPIRATORY DIAGNOSTICS, INC. (1)
7,122,031 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 134 2001
 
PHYSIO-CONTROL, INC. (1)
5,605,150 Electrical interface for a portable electronic physiological instrument having separable components 125 1994
 
TRANSAMERICA BUSINESS CREDIT CORPORATION (1)
5,520,684 Transurethral radio frequency apparatus for ablation of the prostate gland and method 381 1994
 
U.S. DEPARTMENT OF ENERGY (1)
4,339,049 Containers for use in a self supporting assembly 98 1980
 
SMITHS GROUP PLC (2)
4,961,047 Electrical power control apparatus and methods 103 1989
5,480,399 Electrosurgery monitor and apparatus 114 1994
 
Trion, Inc. (1)
4,651,264 Power supply with arcing control and automatic overload protection 88 1984
 
KABUSHIKI KAISHA TOSHIBA (1)
5,409,485 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 104 1993
 
Pacesetter AB (1)
4,805,621 Apparatus for measuring impedance of body tissue 139 1987
 
Bell Telephone Laboratories, Incorporated (1)
4,586,120 Current limit shutdown circuit with time delay 78 1983
 
Perfect Surgical Techniques, Inc. (1)
6,682,527 Method and system for heating tissue with a bipolar instrument 422 2001
 
BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA (1)
5,868,740 Method for volumetric tissue ablation 368 1995
 
NELLCOR PURITAN BENNETT INCORPORATED (2)
5,660,567 Medical sensor connector with removable encoding device 342 1995
6,044,283 Medical sensor with modulated encoding scheme 217 1998
 
JOHNSON & JOHNSON PROFESSIONAL, INC. (1)
4,520,818 High dielectric output circuit for electrosurgical power source 105 1983
 
SEEDLING ENTERPRISES, INC. (1)
5,647,871 Electrosurgery with cooled electrodes 497 1995
 
INTEGRA LIFESCIENCES (IRELAND) LTD. (3)
4,931,047 Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis 676 1987
5,015,227 Apparatus for providing enhanced tissue fragmentation and/or hemostasis 445 1990
5,190,517 Electrosurgical and ultrasonic surgical system 623 1991
 
KARL STORZ ENDOSCOPY-AMERICA, INC. (3)
4,818,954 High-frequency generator with automatic power-control for high-frequency surgery 143 1987
5,108,391 High-frequency generator for tissue cutting and for coagulating in high-frequency surgery 407 1989
6,824,539 Touchscreen controlling medical equipment from multiple manufacturers 113 2002
 
AN-CON GENETICS, INC. (1)
5,167,658 Method and apparatus for electrosurgical measurement 155 1991
 
SIEMENS AKTIENGESELLSCHAFT (2)
4,862,889 Monitoring circuit for an RF surgical apparatus 154 1989
5,196,008 Method and circuit for monitoring electrode surfaces at the body tissue of a patient in an HF surgery device 103 1990
 
Alton Dean Medical (1)
5,254,117 Multi-functional endoscopic probe apparatus 233 1992
 
VENTURE LENDING (1)
5,472,441 Device for treating cancer and non-malignant tumors and methods 616 1994
 
Megadyne Medical Products, Inc. (1)
6,053,910 Capacitive reusable electrosurgical return electrode 131 1996
 
ELLMAN INTERNATIONAL, INC. (1)
5,342,356 Electrical coupling unit for electrosurgery 171 1992
 
KIRWAN SURGICAL PRODUCTS LLC (1)
5,196,009 Non-sticking electrosurgical device having nickel tips 256 1991
 
INFINEON TECHNOLOGIES AG (1)
6,222,356 Current mode switching regulator configured such that a measuring resistor is not needed to measure the current at an inductor 92 1999
 
LINEAR TECHNOLOGY CORPORATION (1)
6,498,466 Cancellation of slope compensation effect on current limit 102 2000
 
Cardiac Pathways Corporation (1)
5,820,568 Apparatus and method for aiding in the positioning of a catheter 185 1996
 
Cardiac Pacemakers, Inc. (2)
5,971,980 System for controlling the energy delivered to a patient for ablation 290 1997
6,391,024 RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering 272 1999
 
SMITH & NEPHEW, INC. (1)
2004/0030,330 Electrosurgery systems 431 2003
 
Cimarron Instruments, Inc. (1)
4,334,539 Electrosurgical generator control apparatus 139 1980
 
EP Technologies, Inc. (13)
5,383,874 Systems for identifying catheters and monitoring their use 512 1992
5,423,808 Systems and methods for radiofrequency ablation with phase sensitive power detection 379 1993
5,651,780 Systems for identifying catheters and monitoring their use 368 1994
5,688,267 Systems and methods for sensing multiple temperature conditions during tissue ablation 501 1995
5,769,847 Systems and methods for controlling tissue ablation using multiple temperature sensing elements 245 1996
5,755,715 Tissue heating and ablation systems and methods using time-variable set point temperature curves for monitoring and control 214 1996
5,702,386 Non-linear control systems and methods for heating and ablating body tissue 220 1996
5,897,552 Electrode and associated systems using thermally insulated temperature sensing elements 226 1997
6,053,912 Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes 205 1997
6,113,591 Systems and methods for sensing sub-surface temperatures in body tissue 100 1997
6,056,745 Systems and methods for obtaining desired lesion characteristics while ablating body tissue 171 1997
6,014,581 Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure 215 1998
6,786,905 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body 275 2002
 
COVIDIEN AG (41)
5,772,659 Electrosurgical generator power control circuit and method 282 1995
6,033,399 Electrosurgical generator with adaptive power control 565 1997
6,228,080 Electrosurgical generator with adaptive power control 377 1998
6,398,779 Vessel sealing system 442 1999
6,796,981 Vessel sealing system 347 2002
6,860,881 Multiple RF return pad contact detection system 114 2002
* 7,137,980 Method and system for controlling output of RF medical generator 301 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 97 2003
RE40388 Electrosurgical generator with adaptive power control 105 2003
7,364,577 Vessel sealing system 140 2003
2008/0125,767 Thermocouple Measurement Circuit 78 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 225 2003
7,131,860 Connector systems for electrosurgical generator 259 2003
7,044,948 Circuit for controlling arc energy from an electrosurgical generator 220 2003
7,147,638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 262 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 244 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 62 2004
7,160,293 Multiple RF return pad contact detection system 92 2004
7,396,336 Switched resonant ultrasonic power amplifier system 193 2004
7,303,557 Vessel sealing system 273 2004
2005/0203,504 Method and system for controlling output of RF medical generator 243 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 62 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 191 2005
2006/0079,871 Universal foot switch contact port 55 2005
2007/0093,801 Circuit and method for reducing stored energy in an electrosurgical generator 68 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 56 2005
2006/0161,148 Circuit and method for controlling an electrosurgical generator using a full bridge topology 100 2006
2007/0173,810 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 52 2006
2006/0178,664 Circuit for controlling arc energy from an electrosurgical generator 56 2006
2007/0208,339 System and method for controlling electrosurgical snares 66 2006
2007/0225,698 System and method for generating radio frequency energy 48 2006
2006/0224,152 Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator 88 2006
2007/0250,052 Arc based adaptive control system for an electrosurgical unit 48 2006
2007/0265,612 System and method for reducing leakage current in an electrosurgical generator 61 2006
2008/0039,831 System and method for measuring initial tissue impedance 84 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 141 2006
2008/0082,094 Transformer for RF voltage sensing 50 2006
2007/0038,209 Method and system for controlling output of RF medical generator 62 2006
2007/0173,805 Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm 122 2007
2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 219 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 64 2007
 
LAZURE SCIENTIFIC, INC. (1)
5,908,444 Complex frequency pulsed electromagnetic generator and method of use 101 1997
 
VENTURE LENDING & LEASING, INC. (1)
5,370,675 Medical probe device and method 911 1993
 
CONWAY STUART MEDICAL, INC. (1)
6,358,245 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 236 1999
 
ABIOMED, INC. (1)
7,062,331 Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system 81 2002
 
G2 DESIGN LIMITED (3)
5,099,840 Diathermy unit 406 1989
5,423,810 Cauterising apparatus 458 1993
5,451,224 Apparatus for radio frequency bipolar electrosurgery 468 1993
 
YAZAKI CORPORATION (1)
5,961,344 Cam-actuated terminal connector 81 1997
 
HAIR FREE CENTERS, INC. (1)
4,372,315 Impedance sensing epilator 92 1980
 
FREESCALE SEMICONDUCTOR, INC. (1)
4,931,717 Load response control and method 83 1989
 
LIVE TISSUE CONNECT, INC. (3)
6,562,037 Bonding of soft biological tissues by passing high frequency electric current therethrough 350 1998
6,733,498 System and method for control of tissue welding 324 2002
2004/0068,304 Bonding of soft biological tissues by passing high freouency electric current therethrough 96 2003
 
AUSLO RESEARCH LLC (1)
5,330,518 Method for treating interstitial tissue associated with microwave thermal therapy 291 1992
 
INTEGRA ME GMBH (4)
5,133,711 Electric surgical high-frequency instrument 86 1990
5,976,128 Electrosurgical high frequency generator 171 1997
5,951,545 High-frequency surgical instrument and method of operating the same 109 1997
6,074,388 Electrically operated medical apparatus 96 1998
 
DIPOLAR LIMITED (1)
6,010,499 Electrosurgical cutting and coagulation apparatus 121 1997
 
DRG (UK) LIMITED (1)
4,384,582 Patient plate for diathermy apparatus, and diathermy apparatus fitted with it 113 1980
 
Omron Tateisi Electronics Co. (1)
4,993,430 Electrode device for high frequency thermotherapy apparatus 134 1989
 
MEDTRONIC CRYOCATH LP (1)
5,281,213 Catheter for ice mapping and ablation 576 1992
 
ORATEC INTERVENTIONS, INC. (3)
6,162,217 Method and apparatus for controlling a temperature-controlled probe 139 1999
6,350,262 Method and apparatus for applying thermal energy to tissue asymetrically 139 2000
6,939,346 Method and apparatus for controlling a temperature-controlled probe 237 2002
 
MEDTRONIC, INC. (17)
5,342,409 Position-responsive neuro stimulator 426 1991
5,674,217 Heart synchronized extractor for an implanted object 122 1993
5,534,018 Automatic lead recognition for implantable medical device 274 1994
5,643,330 Multichannel apparatus for epidural spinal cord stimulation 381 1996
5,702,429 Neural stimulation techniques with feedback 296 1996
5,938,690 Pain management system and method 432 1996
5,925,070 Techniques for adjusting the locus of excitation of electrically excitable tissue 200 1997
6,063,078 Method and apparatus for tissue ablation 224 1997
5,948,007 Dual channel implantation neurostimulation techniques 141 1997
5,814,092 Neural stimulation techniques with feedback 219 1997
5,836,990 Method and apparatus for determining electrode/tissue contact 236 1997
5,913,882 Neural stimulation techniques with feedback 241 1998
6,648,883 Ablation system and method of use 230 2002
6,849,073 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 357 2002
6,989,010 Ablation system and method of use 154 2003
7,367,972 Ablation system 124 2003
* 7,247,155 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 192 2004
 
MICROLINE SURGICAL, INC. (4)
5,836,943 Electrosurgical generator 167 1996
6,238,387 Electrosurgical generator 201 1998
6,692,489 Electrosurgical mode conversion system 138 2000
7,175,621 Electrosurgical mode conversion system 92 2003
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
4,788,634 Resonant forward converter 130 1987
 
ENTEGRIS, INC. (1)
2004/0121,494 Infrared thermopile detector system for semiconductor process monitoring and control 1 2003
 
JPMORGAN CHASE BANK, N.A. (1)
* 5,445,638 Bipolar coagulation and cutting forceps 541 1993
 
MEDTRONIC CARDIORHYTHM (2)
5,540,681 Method and system for radiofrequency ablation of tissue 449 1994
5,584,830 Method and system for radiofrequency ablation of cardiac tissue 205 1994
 
GYRUS MEDICAL LIMITED CHARTERHOUSE (1)
5,438,302 Electrosurgical radiofrequency generator having regulated voltage across switching device 638 1994
 
ENGINEERING & RESEARCH ASSOCIATES, INC. (1)
5,868,737 Apparatus and method for determining ablation 148 1997
 
E.P. Technologies Inc. (1)
5,722,975 Systems for radiofrequency ablation with phase sensitive power detection and control 170 1995
 
Aspen Laboratories, Inc. (2)
4,569,345 High output electrosurgical unit 106 1984
4,848,335 Return electrode contact monitor 130 1988
 
GENERAL ELECTRIC COMPANY (1)
4,559,496 LCD Hook-on digital ammeter 80 1984
 
ETHICON ENDO-SURGERY, LLC (1)
7,060,063 Devices and methods for controlling initial movement of an electrosurgical electrode 85 2003
 
STORZ INSTRUMENT COMPANY (2)
5,249,121 Remote control console for surgical control system 204 1989
5,157,603 Control system for ophthalmic surgical instruments 114 1989
 
ST. JUDE MEDICAL, INC. (1)
5,300,068 Electrosurgical apparatus 501 1992
 
INTACT MEDICAL CORPORATION (3)
6,740,079 Electrosurgical generator 185 2001
7,004,174 Electrosurgery with infiltration anesthesia 96 2002
6,923,804 Electrosurgical generator 185 2003
 
KAMIYAMA, HIROYASU (1)
5,151,102 Blood vessel coagulation/stanching device 479 1990
 
Storz Endoskop GmbH (3)
6,261,285 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 73 1998
6,275,786 Device for monitoring a neutral electrode during HF surgery 101 1999
6,864,686 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 105 2002
 
B.F. GOODRICH COMPANY, THE (1)
4,514,619 Indirect current monitoring via voltage and impedance monitoring 109 1982
 
BROWN, RUSSELL A., TRUSTEE OF THE RUSSELL A. FAMILY LIVING TRUST (1)
4,608,977 System using computed tomography as for selective body treatment 363 1982
 
DELL PRODUCTS L.P. (1)
6,693,782 Surge suppression for current limiting circuits 64 2000
 
ARTHROCARE CORPORATION (3)
6,142,992 Power supply for limiting power in electrosurgery 317 1998
6,235,020 Power supply and methods for fluid delivery in electrosurgery 346 1998
6,296,636 Power supply and methods for limiting power in electrosurgery 330 1999
 
BAUSCH & LOMB INCORPORATED (1)
6,055,458 Modes/surgical functions 97 1997
 
Refractec Inc. (1)
5,749,871 Method and apparatus for modifications of visual acuity by thermal means 131 1994
 
ERICSSON RAYNET (2)
5,694,304 High efficiency resonant switching converters 94 1995
5,712,772 Controller for high efficiency resonant switching converters 149 1995
 
RDM International, Inc. (1)
4,644,955 Circuit apparatus and method for electrothermal treatment of cancer eye 103 1985
 
MAQUET CARDIOVASCULAR LLC (1)
2004/0102,772 Apparatus and method for minimally invasive surgery using rotational cutting tool 18 2003
 
ESC MEDICAL SYSTEMS LTD. (1)
5,556,396 Method for tubal electroligation 273 1995
 
SENORX, INC. (2)
6,620,157 High frequency power source 186 2000
7,175,618 High frequency power source 60 2003
 
CYNOSURE, INC. (5)
5,954,686 Dual-frequency electrosurgical instrument 131 1998
6,238,388 Low-voltage electrosurgical apparatus 110 1999
6,652,514 Intelligent selection system for electrosurgical instrument 281 2001
6,712,813 RF probe for electrosurgical instrument 125 2001
6,994,707 Intelligent selection system for electrosurgical instrument 226 2003
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
TYCO HEALTHCARE GROUP LP (1)
* 2012/0022,521 System And Method For Measuring Initial Tissue Impedance 7 2011
 
Coviden IP (1)
D680220 Slider handle for laparoscopic device 6 2012
 
COVIDIEN AG (13)
8,267,928 System and method for closed loop monitoring of monopolar electrosurgical apparatus 0 2011
8,241,278 Laparoscopic apparatus for performing electrosurgical procedures 3 2011
8,267,929 Method and system for programming and controlling an electrosurgical generator system 8 2011
8,647,340 Thermocouple measurement system 0 2012
8,485,993 Switched resonant ultrasonic power amplifier system 0 2012
9,168,089 Method and system for controlling output of RF medical generator 0 2012
9,113,900 Method and system for controlling output of RF medical generator 0 2012
8,475,447 System and method for closed loop monitoring of monopolar electrosurgical apparatus 0 2012
8,597,296 Bipolar forceps having monopolar extension 1 2012
8,591,506 Vessel sealing system 42 2012
8,966,981 Switched resonant ultrasonic power amplifier system 0 2013
9,375,270 Vessel sealing system 0 2013
9,375,271 Vessel sealing system 0 2013
 
COVIDIEN LP (13)
* 8,215,182 Apparatus and method for measuring pressure between jaw members 16 2008
* 2011/0036,183 APPARATUS AND METHOD FOR MEASURING PRESSURE BETWEEN JAW MEMBERS 21 2008
9,033,973 System and method for DC tissue impedance sensing 0 2011
8,898,888 System for manufacturing electrosurgical seal plates 4 2012
9,113,940 Trigger lockout and kickback mechanism for surgical instruments 2 2012
8,568,444 Method of transferring rotational motion in an articulating surgical instrument 2 2012
9,028,493 In vivo attachable and detachable end effector assembly and laparoscopic surgical instrument and methods therefor 0 2012
8,454,602 Apparatus, system, and method for performing an electrosurgical procedure 11 2012
8,523,898 Endoscopic electrosurgical jaws with offset knife 11 2012
8,486,061 Imaginary impedance process monitoring and intelligent shut-off 0 2012
8,858,554 Apparatus, system, and method for performing an electrosurgical procedure 2 2013
9,345,535 Apparatus, system and method for performing an electrosurgical procedure 0 2014
9,265,552 Method of manufacturing electrosurgical seal plates 0 2014
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 11, 2019
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 11, 2023
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00