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

ALSO PUBLISHED AS: 20080039831
1 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

all claims..

Related Publications

Loading Related Publications... 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, CO 11 536
Odom, Darren Longmont, CO 30 1450
Weinberg, Craig Denver, CO 42 1756

Cited Art Landscape

Patent Info (Count) # Cites Year
 
COVIDIEN AG (39)
5,772,659 Electrosurgical generator power control circuit and method 159 1995
6,033,399 Electrosurgical generator with adaptive power control 384 1997
6,228,080 Electrosurgical generator with adaptive power control 303 1998
6,398,779 Vessel sealing system 353 1999
6,796,981 Vessel sealing system 229 2002
6,860,881 Multiple RF return pad contact detection system 105 2002
7,137,980 Method and system for controlling output of RF medical generator 170 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 86 2003
RE40388 Electrosurgical generator with adaptive power control 58 2003
7,364,577 Vessel sealing system 77 2003
2008/0125,767 Thermocouple Measurement Circuit 66 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 197 2003
7,131,860 Connector systems for electrosurgical generator 195 2003
7,044,948 Circuit for controlling arc energy from an electrosurgical generator 188 2003
7,147,638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 221 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 215 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 55 2004
7,160,293 Multiple RF return pad contact detection system 83 2004
7,396,336 Switched resonant ultrasonic power amplifier system 152 2004
7,303,557 Vessel sealing system 193 2004
2005/0203,504 Method and system for controlling output of RF medical generator 206 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 57 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 173 2005
2006/0079,871 Universal foot switch contact port 51 2005
2007/0093,801 Circuit and method for reducing stored energy in an electrosurgical generator 59 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 50 2005
2007/0173,810 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 47 2006
2006/0178,664 Circuit for controlling arc energy from an electrosurgical generator 53 2006
2007/0208,339 System and method for controlling electrosurgical snares 49 2006
2007/0225,698 System and method for generating radio frequency energy 45 2006
2007/0250,052 Arc based adaptive control system for an electrosurgical unit 44 2006
2007/0265,612 System and method for reducing leakage current in an electrosurgical generator 54 2006
2008/0039,831 System and method for measuring initial tissue impedance 69 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 118 2006
2008/0082,094 Transformer for RF voltage sensing 47 2006
2007/0038,209 Method and system for controlling output of RF medical generator 54 2006
2007/0173,805 Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm 68 2007
2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 120 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 56 2007
 
TYCO HEALTHCARE GROUP AG (35)
5,233,515 Real-time graphic display of heat lesioning parameters in a clinical lesion generator system 189 1990
5,334,183 Endoscopic electrosurgical apparatus 583 1992
5,370,645 Electrosurgical processor and method of use 234 1993
5,372,596 Apparatus for leakage control and method for its use 187 1993
5,443,463 Coagulating forceps 617 1993
5,423,809 Electrosurgical control for a trocar 200 1993
5,496,312 Impedance and temperature generator control 803 1993
6,210,403 Automatic control for energy from an electrosurgical generator 145 1993
5,433,739 Method and apparatus for heating an intervertebral disc for relief of back pain 512 1993
5,514,129 Automatic bipolar control for an electrosurgical generator 189 1993
5,422,567 High frequency power measurement 317 1993
5,571,147 Thermal denervation of an intervertebral disc for relief of back pain 217 1994
5,613,966 System and method for accessory rate control 139 1994
5,695,494 Rem output stage topology 163 1994
5,599,344 Control apparatus for electrosurgical generator power output 185 1995
5,628,745 Exit spark control for an electrosurgical generator 101 1995
5,720,744 Control system for neurosurgery 362 1995
5,827,271 Energy delivery system for vessel sealing 393 1995
6,241,725 High frequency thermal ablation of cancerous tumors and functional targets with image data assistance 179 1996
5,983,141 Method and apparatus for altering neural tissue function 225 1996
6,068,627 Smart recognition apparatus and method 233 1997
6,102,497 Universal cart 69 1998
6,203,541 Automatic activation of electrosurgical generator bipolar output 142 1999
6,258,085 Electrosurgical return electrode monitor 113 1999
6,246,912 Modulated high frequency tissue modification 291 1999
6,402,741 Current and status monitor 105 1999
6,402,743 Smart recognition apparatus and method 120 2000
6,506,189 Cool-tip electrode thermosurgery system 300 2000
6,575,969 Cool-tip radiofrequency thermosurgery electrode system for tumor ablation 400 2000
6,565,559 Electrosurgical return electrode monitor 96 2001
6,755,825 Electrosurgical device having a dielectric seal 73 2001
6,685,701 Smart recognition apparatus and method 127 2002
7,300,435 Automatic control system for an electrosurgical generator 206 2003
7,255,694 Variable output crest factor electrosurgical generator 60 2003
7,044,949 Smart recognition apparatus and method 69 2004
 
GYRUS MEDICAL LIMITED (25)
5,647,869 Electrosurgical apparatus 496 1995
6,293,942 Electrosurgical generator method 307 1996
6,074,386 Electrosurgical instrument and an electrosurgical electrode assembly 457 1997
6,093,186 Electrosurgical generator and system 318 1997
6,416,509 Electrosurgical generator and system 291 1998
6,056,746 Electrosurgical instrument 333 1998
6,261,286 Electrosurgical generator and system 271 1998
6,306,134 Electrosurgical generator and system 301 1998
6,364,877 Electrosurgical generator and system 236 1998
6,228,081 Electrosurgery system and method 279 1999
6,325,799 Electrosurgical instrument 197 1999
6,582,427 Electrosurgery system 183 2000
6,398,781 Electrosurgery system 170 2000
6,547,786 Electrosurgery system and instrument 143 2000
6,758,846 Electrosurgical instrument and an electrosurgery system including such an instrument 189 2001
6,893,435 Electrosurgical system 170 2001
6,843,789 Electrosurgical system 178 2002
2003/0139,741 Surgical instrument 333 2002
2003/0153,908 Electrosurgery system 127 2003
6,929,641 Electrosurgical system 134 2003
6,966,907 Electrosurgical generator and system 262 2003
7,220,260 Electrosurgical system 152 2003
7,214,224 Electrosurgical system 124 2003
7,211,081 Electrosurgical generator 129 2003
7,282,048 Electrosurgical generator and system 134 2004
 
MEDTRONIC, INC. (17)
5,342,409 Position-responsive neuro stimulator 367 1991
5,674,217 Heart synchronized extractor for an implanted object 101 1993
5,534,018 Automatic lead recognition for implantable medical device 240 1994
5,643,330 Multichannel apparatus for epidural spinal cord stimulation 307 1996
5,702,429 Neural stimulation techniques with feedback 252 1996
5,938,690 Pain management system and method 346 1996
5,925,070 Techniques for adjusting the locus of excitation of electrically excitable tissue 179 1997
6,063,078 Method and apparatus for tissue ablation 175 1997
5,948,007 Dual channel implantation neurostimulation techniques 116 1997
5,814,092 Neural stimulation techniques with feedback 187 1997
5,836,990 Method and apparatus for determining electrode/tissue contact 175 1997
5,913,882 Neural stimulation techniques with feedback 202 1998
6,648,883 Ablation system and method of use 189 2002
6,849,073 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 235 2002
6,989,010 Ablation system and method of use 77 2003
7,367,972 Ablation system 85 2003
7,247,155 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 135 2004
 
OLYMPUS OPTICAL CO., LTD. (16)
4,662,383 Endotract antenna device for hyperthermia 230 1983
4,615,330 Noise suppressor for electronic endoscope 112 1984
4,961,435 High-frequency capacitive heating electrode device 142 1988
5,425,704 Apparatus for generating ultrasonic oscillation 127 1992
5,540,683 High frequency cauterizing apparatus 144 1994
5,931,836 Electrosurgery apparatus and medical apparatus combined with the same 147 1997
6,063,075 Electrosurgical apparatus and separation detecting method capable of stably monitoring separation state of return electrode 105 1998
6,383,183 High frequency treatment apparatus 91 1999
6,306,131 Electric medical apparatus 78 1999
6,436,096 Electrosurgical apparatus with stable coagulation 82 1999
6,464,696 Electrical surgical operating apparatus 71 2000
6,663,623 Electric surgical operation apparatus 69 2000
6,666,860 Electric treatment system 125 2000
6,635,057 Electric operation apparatus 80 2000
6,623,423 Surgical operation system 82 2001
6,511,476 Electrosurgical apparatus with stable coagulation 77 2001
 
SHERWOOD SERVICES AG (16)
4,416,276 Adaptive, return electrode monitoring system 337 1981
4,416,277 Return electrode monitoring system for use during electrosurgical activation 160 1981
4,565,200 Universal lesion and recording electrode system 539 1982
4,658,819 Electrosurgical generator 230 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 80 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 145 1984
4,658,820 Electrosurgical generator with improved circuitry for generating RF drive pulse trains 103 1985
4,907,589 Automatic over-temperature control apparatus for a therapeutic heating device 529 1988
4,966,597 Thermometric cardiac tissue ablation electrode with ultra-sensitive temperature detection 623 1988
6,451,015 Method and system for menu-driven two-dimensional display lesion generator 206 1998
2005/0021,020 System for activating an electrosurgical instrument 61 2004
2006/0161,148 Circuit and method for controlling an electrosurgical generator using a full bridge topology 79 2006
2007/0173,802 Method and system for transmitting data across patient isolation barrier 56 2006
2007/0173,813 System and method for tissue sealing 164 2006
2006/0224,152 Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator 76 2006
2007/0282,320 System and method for controlling tissue heating rate prior to cellular vaporization 71 2006
 
BOSTON SCIENTIFIC SCIMED, INC. (14)
5,122,137 Temperature controlled RF coagulation 574 1990
5,103,804 Expandable tip hemostatic probes and the like 349 1990
5,348,554 Catheter for RF ablation with cooled electrode 765 1992
5,403,311 Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue 834 1993
5,409,000 Endocardial mapping and ablation system utilizing separately controlled steerable ablation catheter with ultrasonic imaging capabilities and method 364 1993
5,954,717 Method and system for heating solid tissue 147 1997
6,080,149 Method and apparatus for monitoring solid tissue heating 144 1998
6,123,702 Systems and methods for controlling power in an electrosurgical probe 204 1998
6,245,065 Systems and methods for controlling power in an electrosurgical probe 260 1998
6,337,998 Apparatus and method for treating tumors near the surface of an organ 134 1999
6,511,478 Medical probe with reduced number of temperature sensor wires 124 2000
6,685,703 Generator and probe adapter 59 2001
6,685,700 Method and system for heating solid tissue 108 2001
6,790,206 Compensation for power variation along patient cables 71 2002
 
CONMED CORPORATION (14)
5,267,994 Electrosurgical probe 394 1992
5,300,070 Electrosurgical trocar assembly with bi-polar electrode 138 1992
5,432,459 Leakage capacitance compensating current sensor for current supplied to medical device loads with unconnected reference conductor 77 1993
5,436,566 Leakage capacitance compensating current sensor for current supplied to medical device loads 189 1993
5,599,348 Electrosurgical trocar assembly 103 1994
5,496,313 System for detecting penetration of medical instruments 77 1994
5,626,575 Power level control apparatus for electrosurgical generators 133 1995
5,830,212 Electrosurgical generator and electrode 127 1996
2004/0097,912 Electrosurgical generator and method with removable front panel having replaceable electrical connection sockets and illuminated receptacles 67 2002
6,830,569 Electrosurgical generator and method for detecting output power delivery malfunction 128 2002
6,875,210 Electrosurgical generator and method for cross-checking mode functionality 87 2002
6,939,347 Electrosurgical generator and method with voltage and frequency regulated high-voltage current mode power supply 96 2002
6,942,660 Electrosurgical generator and method with multiple semi-autonomously executable functions 62 2002
6,948,503 Electrosurgical generator and method for cross-checking output power 78 2002
 
EP Technologies, Inc. (13)
5,383,874 Systems for identifying catheters and monitoring their use 367 1992
5,423,808 Systems and methods for radiofrequency ablation with phase sensitive power detection 320 1993
5,651,780 Systems for identifying catheters and monitoring their use 250 1994
5,688,267 Systems and methods for sensing multiple temperature conditions during tissue ablation 414 1995
5,769,847 Systems and methods for controlling tissue ablation using multiple temperature sensing elements 175 1996
5,755,715 Tissue heating and ablation systems and methods using time-variable set point temperature curves for monitoring and control 159 1996
5,702,386 Non-linear control systems and methods for heating and ablating body tissue 139 1996
5,897,552 Electrode and associated systems using thermally insulated temperature sensing elements 96 1997
6,053,912 Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes 177 1997
6,113,591 Systems and methods for sensing sub-surface temperatures in body tissue 90 1997
6,056,745 Systems and methods for obtaining desired lesion characteristics while ablating body tissue 136 1997
6,014,581 Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure 165 1998
6,786,905 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body 216 2002
 
ETHICON ENDO-SURGERY, INC. (11)
5,540,684 Method and apparatus for electrosurgically treating tissue 430 1994
5,558,671 Impedance feedback monitor for electrosurgical instrument 493 1994
5,707,369 Temperature feedback monitor for hemostatic surgical instrument 393 1995
5,693,042 Identification device for surgical instrument 202 1995
5,817,093 Impedance feedback monitor with query electrode for electrosurgical instrument 389 1996
5,797,941 Surgical instrument with expandable cutting element 234 1997
6,338,657 Hand piece connector 77 2000
6,558,376 Method of use of an ultrasonic clamp and coagulation apparatus with tissue support surface 89 2001
2002/0107,517 Electrosurgical instrument for coagulation and cutting 226 2002
2002/0111,624 Coagulating electrosurgical instrument with tissue dam 196 2002
7,060,063 Devices and methods for controlling initial movement of an electrosurgical electrode 72 2003
 
ERBE ELEKTROMEDIZIN GMBH (8)
4,658,815 High-frequency electrosurgical unit with timed safety shut down interlock 80 1986
4,860,745 High frequency electrosurgical apparatus for thermal coagulation of biologic tissues 137 1987
4,922,210 Feedback-coupled high-frequency power oscillator 88 1989
4,969,885 High frequency surgery device for cutting and/or coagulating biologic tissue 233 1990
5,087,257 Apparatus for monitoring the application of neutral electrodes on a patient undergoing high frequency electro-surgery 124 1990
5,267,997 High-frequency electrosurgery apparatus with limitation of effective value of current flowing through a surgical instrument 347 1992
7,066,933 High-frequency generator for performing high-frequency surgery having adjustable power limitation, and method for controlling the power limitation 73 2001
2004/0044,339 Method for operating an instrument for use in high-frequency surgery, and electrosurgical device 46 2003
 
OLYMPUS CORPORATION (8)
6,730,080 Electric operation apparatus 89 2001
6,740,085 Heating treatment system 86 2001
6,679,875 Medical treatment system 90 2002
6,855,142 Electrosurgical device for treating body tissue with high-frequency power 75 2002
7,063,692 Surgical operation system 65 2003
7,172,591 Electric operation apparatus 64 2003
7,001,381 Electric operation apparatus 143 2003
2004/0133,189 Surgical operation apparatus and control method thereof 89 2003
 
ELLMAN INTERNATIONAL, INC. (6)
5,342,356 Electrical coupling unit for electrosurgery 158 1992
5,954,686 Dual-frequency electrosurgical instrument 116 1998
6,238,388 Low-voltage electrosurgical apparatus 101 1999
6,652,514 Intelligent selection system for electrosurgical instrument 238 2001
6,712,813 RF probe for electrosurgical instrument 116 2001
6,994,707 Intelligent selection system for electrosurgical instrument 192 2003
 
VALLEYLAB INC. (6)
4,231,372 Safety monitoring circuit for electrosurgical unit 142 1974
4,237,887 Electrosurgical device 121 1975
4,200,104 Contact area measurement apparatus for use in electrosurgery 211 1977
4,188,927 Multiple source electrosurgical generator 190 1978
4,196,734 Combined electrosurgery/cautery system and method 146 1978
6,251,106 Electrosurgical generator power control circuit and method 76 1998
 
WELLS FARGO BANK, NATIONAL ASSOCIATION FLAIR INDUSTRIAL PARK RCBO (6)
4,429,694 Electrosurgical generator 108 1981
4,438,766 Electrosurgical generator 82 1981
4,437,464 Electrosurgical generator safety apparatus 131 1981
4,559,943 Electrosurgical generator 121 1983
4,727,874 Electrosurgical generator with high-frequency pulse width modulated feedback power control 304 1984
5,152,762 Current leakage control for electrosurgical generator 121 1990
 
American Cardiac Ablation Co., Inc. (5)
5,341,807 Ablation catheter positioning system 390 1992
5,334,193 Fluid cooled ablation catheter 830 1992
5,342,357 Fluid cooled electrosurgical cauterization system 566 1992
5,383,876 Fluid cooled electrosurgical probe for cutting and cauterizing tissue 623 1994
5,733,281 Ultrasound and impedance feedback system for use with electrosurgical instruments 112 1996
 
MEDERI THERAPEUTICS, INC. (5)
6,273,886 Integrated tissue heating and cooling apparatus 249 1999
6,464,689 Graphical user interface for monitoring and controlling use of medical devices 123 2000
6,783,523 Unified systems and methods for controlling use and operation of a family of different treatment devices 114 2002
6,733,495 Systems and methods for monitoring and controlling use of medical devices 122 2002
6,994,704 Graphical user interface for monitoring and controlling use of medical devices 91 2002
 
ANGIODYNAMICS, INC. (4)
5,458,597 Device for treating cancer and non-malignant tumors and methods 392 1993
5,536,267 Multiple electrode ablation apparatus 625 1994
5,599,345 RF treatment apparatus 355 1994
6,663,624 RF treatment apparatus 117 1999
 
INTEGRA ME GMBH (4)
5,133,711 Electric surgical high-frequency instrument 79 1990
5,976,128 Electrosurgical high frequency generator 149 1997
5,951,545 High-frequency surgical instrument and method of operating the same 93 1997
6,074,388 Electrically operated medical apparatus 83 1998
 
MICROLINE SURGICAL, INC. (4)
5,836,943 Electrosurgical generator 121 1996
6,238,387 Electrosurgical generator 140 1998
6,692,489 Electrosurgical mode conversion system 115 2000
7,175,621 Electrosurgical mode conversion system 72 2003
 
ARTHROCARE CORPORATION (3)
6,142,992 Power supply for limiting power in electrosurgery 257 1998
6,235,020 Power supply and methods for fluid delivery in electrosurgery 287 1998
6,296,636 Power supply and methods for limiting power in electrosurgery 276 1999
 
G2 DESIGN LIMITED (3)
5,099,840 Diathermy unit 357 1989
5,423,810 Cauterising apparatus 409 1993
5,451,224 Apparatus for radio frequency bipolar electrosurgery 425 1993
 
INTACT MEDICAL CORPORATION (3)
6,740,079 Electrosurgical generator 140 2001
7,004,174 Electrosurgery with infiltration anesthesia 75 2002
6,923,804 Electrosurgical generator 129 2003
 
INTEGRA LIFESCIENCES (IRELAND) LTD. (3)
4,931,047 Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis 546 1987
5,015,227 Apparatus for providing enhanced tissue fragmentation and/or hemostasis 318 1990
5,190,517 Electrosurgical and ultrasonic surgical system 504 1991
 
KARL STORZ ENDOSCOPY-AMERICA, INC. (3)
4,818,954 High-frequency generator with automatic power-control for high-frequency surgery 129 1987
5,108,391 High-frequency generator for tissue cutting and for coagulating in high-frequency surgery 377 1989
6,824,539 Touchscreen controlling medical equipment from multiple manufacturers 97 2002
 
KARL STORZ GMBH & CO. KG (3)
5,749,869 High-frequency surgical generator for cutting tissue 246 1995
5,868,739 System for cutting biological tissue 98 1995
5,846,236 High frequency-surgical generator for adjusted cutting and coagulation 98 1996
 
Medical Scientific, Inc. (3)
5,207,691 Electrosurgical clip applicator 318 1991
5,201,900 Bipolar surgical clip 154 1992
5,713,896 Impedance feedback electrosurgical system 315 1995
 
ORATEC INTERVENTIONS, INC. (3)
6,162,217 Method and apparatus for controlling a temperature-controlled probe 120 1999
6,350,262 Method and apparatus for applying thermal energy to tissue asymetrically 113 2000
6,939,346 Method and apparatus for controlling a temperature-controlled probe 147 2002
 
PALOMAR MEDICAL TECHNOLOGIES, LLC (3)
2003/0195,494 Light energy delivery head 1 2003
2003/0195,494 Light energy delivery head 1 2003
2003/0195,494 Light energy delivery head 1 2003
 
SOMNUS MEDICAL TECHNOLOGIES, INC. (3)
6,231,569 Dual processor architecture for electro generator 106 1998
6,293,941 Method and apparatus for impedance measurement in a multi-channel electro-surgical generator 102 1998
6,309,386 Linear power control with PSK regulation 75 1998
 
STORZ ENDOSKOP GMBH (3)
6,261,285 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 67 1998
6,275,786 Device for monitoring a neutral electrode during HF surgery 94 1999
6,864,686 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 91 2002
 
Aspen Laboratories, Inc. (2)
4,569,345 High output electrosurgical unit 84 1984
4,848,335 Return electrode contact monitor 120 1988
 
CARDIAC PACEMAKERS, INC. (2)
5,971,980 System for controlling the energy delivered to a patient for ablation 242 1997
6,391,024 RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering 189 1999
 
Corning Glass Works (2)
4,232,676 Surgical cutting instrument 346 1978
4,314,559 Nonstick conductive coating 168 1979
 
ERICSSON RAYNET (2)
5,694,304 High efficiency resonant switching converters 82 1995
5,712,772 Controller for high efficiency resonant switching converters 118 1995
 
GENERAL ELECTRIC COMPANY (2)
4,287,557 Inverter with improved regulation 70 1979
4,559,496 LCD Hook-on digital ammeter 72 1984
 
HEMOSTATIC SURGERY CORPORATION (2)
5,472,443 Electrosurgical apparatus employing constant voltage and methods of use 406 1994
5,445,635 Regulated-current power supply and methods for resistively-heated surgical instruments 104 1994
 
IXYS CORPORATION (2)
5,500,616 Overvoltage clamp and desaturation detection circuit 79 1995
5,596,466 Intelligent, isolated half-bridge power module 112 1995
 
LIVE TISSUE CONNECT, INC. (2)
6,733,498 System and method for control of tissue welding 284 2002
2004/0068,304 Bonding of soft biological tissues by passing high freouency electric current therethrough 82 2003
 
Medical Plastics, Inc. (2)
4,303,073 Electrosurgery safety monitor 132 1980
4,494,541 Electrosurgery safety monitor 137 1981
 
MEDTRONIC ADVANCED ENERGY LLC (2)
6,689,131 Electrosurgical device having a tissue reduction sensor 196 2001
6,953,461 Fluid-assisted medical devices, systems and methods 222 2002
 
MEDTRONIC CARDIORHYTHM (2)
5,540,681 Method and system for radiofrequency ablation of tissue 325 1994
5,584,830 Method and system for radiofrequency ablation of cardiac tissue 168 1994
 
NELLCOR PURITAN BENNETT INCORPORATED (2)
5,660,567 Medical sensor connector with removable encoding device 293 1995
6,044,283 Medical sensor with modulated encoding scheme 201 1998
 
Richard Wolf GmbH (2)
4,995,877 Device with a rotationally-driven surgical instrument 210 1989
5,324,283 Medical instrument having a switch for controlling an external device 97 1992
 
SAMSUNG ELECTRONICS CO., LTD. (2)
2007/0173,803 System and method for terminating treatment in impedance feedback algorithm 55 2006
2010/0042,093 System and method for terminating treatment in impedance feedback algorithm 18 2006
 
SENORX, INC. (2)
6,620,157 High frequency power source 154 2000
7,175,618 High frequency power source 53 2003
 
SIEMENS AKTIENGESELLSCHAFT (2)
4,862,889 Monitoring circuit for an RF surgical apparatus 143 1989
5,196,008 Method and circuit for monitoring electrode surfaces at the body tissue of a patient in an HF surgery device 97 1990
 
SMITHS GROUP PLC (2)
4,961,047 Electrical power control apparatus and methods 97 1989
5,480,399 Electrosurgery monitor and apparatus 103 1994
 
STORZ INSTRUMENT COMPANY (2)
5,249,121 Remote control console for surgical control system 177 1989
5,157,603 Control system for ophthalmic surgical instruments 107 1989
 
SYNERGETICS USA, INC. (2)
5,318,563 Bipolar RF generator 261 1992
7,041,096 Electrosurgical generator apparatus 80 2002
 
UNIVERSITY OF WASHINGTON (2)
4,582,057 Fast pulse thermal cautery probe 174 1983
4,691,703 Thermal cautery system 123 1986
 
3M INNOVATIVE PROPERTIES COMPANY (1)
6,171,304 Method and apparatus for controlling contact of biomedical electrodes with patient skin 109 1999
 
ABIOMED, INC. (1)
7,062,331 Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system 65 2002
 
ACLARA TECHNOLOGIES LLC (1)
5,696,441 Linear alternating current interface for electronic meters 102 1994
 
ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH (1)
5,531,774 Multichannel implantable cochlear stimulator having programmable bipolar, monopolar or multipolar electrode configurations 118 1994
 
ALTON DEAN MEDICAL (1)
5,254,117 Multi-functional endoscopic probe apparatus 196 1992
 
AN-CON GENETICS, INC. (1)
5,167,658 Method and apparatus for electrosurgical measurement 141 1991
 
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 100 1988
 
ASTEC INTERNATIONAL LIMITED (1)
4,887,199 Start circuit for generation of pulse width modulated switching pulses for switch mode power supplies 111 1987
 
ATRICURE, INC. (1)
6,113,596 Combination monopolar-bipolar electrosurgical instrument system, instrument and cable 333 1997
 
Bausch & Lomb Incorporated (1)
6,055,458 Modes/surgical functions 86 1997
 
Bell Telephone Laboratories, Incorporated (1)
4,586,120 Current limit shutdown circuit with time delay 69 1983
 
BIRTCHER CORPORATION, THE A CORP. OF CALIFORNIA (1)
4,492,832 Hand-controllable switching device for electrosurgical instruments 114 1982
 
BIRTCHER MEDICAL SYSTEMS, INC. (1)
RE34432 Power control technique for beam-type electrosurgical unit 85 1992
 
BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA (1)
5,868,740 Method for volumetric tissue ablation 311 1995
 
BOSTON SCIENTIFIC CORPORATION (1)
5,588,432 Catheters for imaging, sensing electrical potentials, and ablating tissue 692 1995
 
BRAUN AKTIENGESELLSCHAFT (1)
4,376,263 Battery charging circuit 113 1981
 
BROWN, RUSSELL A., TRUSTEE OF THE RUSSELL A. FAMILY LIVING TRUST (1)
4,608,977 System using computed tomography as for selective body treatment 335 1982
 
CARDIAC PATHWAYS CORPORATION (1)
5,820,568 Apparatus and method for aiding in the positioning of a catheter 145 1996
 
CARDIORHYTHM A CA CORPORATION (1)
5,573,533 Method and system for radiofrequency ablation of cardiac tissue 302 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 310 1981
 
CHASE MANHATTAN BANK, THE (1)
5,766,165 Return path monitoring system 101 1995
 
Cimarron Instruments, Inc. (1)
4,334,539 Electrosurgical generator control apparatus 123 1980
 
COLLABO INNOVATIONS, INC. (1)
7,250,746 Current mode switching regulator with predetermined on time 62 2005
 
CONSORTIUM MANAGEMENT SERVICES GROUP, INC. (1)
6,562,037 Bonding of soft biological tissues by passing high frequency electric current therethrough 299 1998
 
CONWAY STUART MEDICAL, INC. (1)
6,358,245 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 190 1999
 
COOPER INDUSTRIES, INC. (1)
4,630,218 Current measuring apparatus 99 1985
 
CORDIS CORPORATION (1)
4,735,204 System for controlling an implanted neural stimulator 123 1986
 
CORDIS WEBSTER, INC. (1)
5,462,521 Fluid cooled and perfused tip for a catheter 428 1993
 
Curon Medical, Inc. (1)
2004/0172,016 Systems and methods for monitoring and controlling use of medical devices 116 2004
 
CYTYC SURGICAL PRODUCTS (1)
6,508,815 Radio-frequency generator for powering an ablation device 233 1999
 
DATEX-OHMEDA, INC. (1)
6,560,470 Electrical lockout photoplethysmographic measurement system 149 2000
 
DELL PRODUCTS L.P. (1)
6,693,782 Surge suppression for current limiting circuits 56 2000
 
DENTSPLY RESEARCH & DEVELOPMENT CORP. (1)
4,200,105 Electrosurgical safety circuit 109 1978
 
Diapulse Corporation of America (1)
6,458,121 Apparatus for athermapeutic medical treatments 119 1996
 
DIPOLAR LIMITED (1)
6,010,499 Electrosurgical cutting and coagulation apparatus 110 1997
 
DRG (UK) LIMITED (1)
4,384,582 Patient plate for diathermy apparatus, and diathermy apparatus fitted with it 106 1980
 
E.P. Technologies Inc. (1)
5,722,975 Systems for radiofrequency ablation with phase sensitive power detection and control 146 1995
 
ELEKTA AB (PUBL) (1)
6,629,973 Method and an apparatus for controlled destruction of tissue 60 2001
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
4,339,049 Containers for use in a self supporting assembly 96 1980
 
ENGINEERING & RESEARCH ASSOCIATES, INC. (1)
5,868,737 Apparatus and method for determining ablation 132 1997
 
ESC MEDICAL SYSTEMS LTD. (1)
5,556,396 Method for tubal electroligation 262 1995
 
ETHICON, INC. (1)
5,403,312 Electrosurgical hemostatic device 949 1993
 
FREESCALE SEMICONDUCTOR, INC. (1)
4,931,717 Load response control and method 76 1989
 
GARITO, JON C. (1)
4,463,759 Universal finger/foot switch adaptor for tube-type electrosurgical instrument 135 1982
 
GOLDMAN SACHS BANK USA (1)
2004/0121,494 Infrared thermopile detector system for semiconductor process monitoring and control 2003
 
GYRUS MEDICAL LIMITED CHARTERHOUSE (1)
5,438,302 Electrosurgical radiofrequency generator having regulated voltage across switching device 492 1994
 
GYRUS MEDICAL, INC. (1)
4,903,696 Electrosurgical generator 175 1988
 
HAIR FREE CENTERS, INC. (1)
4,372,315 Impedance sensing epilator 84 1980
 
Hemostatix Corporation (1)
5,400,267 Local in-device memory feature for electrically powered medical equipment 407 1992
 
HENRY, MCCORD, BEAN & MILLER, P.L.L.C. (1)
5,792,138 Cordless bipolar electrocautery unit with automatic power control 138 1996
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5,729,448 Low cost highly manufacturable DC-to-DC power converter 95 1996
 
HUGHES ELECTRONICS CORPORATION (1)
4,992,719 Stable high voltage pulse power supply 55 1989
 
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 128 1996
 
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 81 1999
 
INTEGRA BURLINGTON MA, INC. (1)
5,230,623 Operating pointer with interactive computergraphics 535 1991
 
IRVINE BIOMEDICAL, INC. (1)
5,954,719 System for operating a RF ablation generator 155 1998
 
JDS UNIPHASE CORPORATION (1)
4,959,606 Current mode switching regulator with programmed offtime 85 1989
 
JOHNSON & JOHNSON PROFESSIONAL, INC. (1)
4,520,818 High dielectric output circuit for electrosurgical power source 91 1983
 
JPMORGAN CHASE BANK, N.A. (1)
5,445,638 Bipolar coagulation and cutting forceps 456 1993
 
KABUSHIKI KAISHA TOSHIBA (1)
5,409,485 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 95 1993
 
KAI DESINGER (1)
6,524,308 Electrode arrangement for electrothermal treatment of human or animal bodies 78 2000
 
KAMIYAMA, HIROYASU (1)
5,151,102 Blood vessel coagulation/stanching device 433 1990
 
KIRWAN SURGICAL PRODUCTS LLC (1)
5,196,009 Non-sticking electrosurgical device having nickel tips 228 1991
 
LAZURE SCIENTIFIC, INC. (1)
5,908,444 Complex frequency pulsed electromagnetic generator and method of use 91 1997
 
LEIBINGER GMBH (1)
4,474,179 Method and apparatus for the high frequency coagulation of protein for surgical purposes 201 1982
 
LIGHTWAVE ABLATIOIN SYSTEMS (1)
5,500,012 Ablation catheter system 672 1994
 
LINEAR TECHNOLOGY CORPORATION (1)
6,498,466 Cancellation of slope compensation effect on current limit 95 2000
 
LINVATEC CORPORATION (1)
4,739,759 Microprocessor controlled electrosurgical generator 209 1985
 
LOCKHEED MARTIN CORPORATION (1)
5,414,238 Resonant power supply for an arcjet thruster 87 1992
 
Macan Engineering & Manufacturing Company, Inc. (1)
4,191,188 Variable crest factor high frequency generator apparatus 81 1978
 
MAQUET CARDIOVASCULAR LLC (1)
2004/0102,772 Apparatus and method for minimally invasive surgery using rotational cutting tool 2003
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
4,788,634 Resonant forward converter 119 1987
 
MDT CORPORATION (1)
4,938,761 Bipolar electrosurgical forceps 326 1990
 
MEDICAL RESEARCH ASSOCIATES, LTD., #2 (1)
4,378,801 Electrosurgical generator 104 1980
 
MEDTRONIC CRYOCATH LP (1)
5,281,213 Catheter for ice mapping and ablation 527 1992
 
MEDTRONIC VIDAMED, INC. (1)
6,855,141 Method for monitoring impedance to control power and apparatus utilizing same 81 2002
 
MEGADYNE MEDICAL PRODUCTS, INC. (1)
6,053,910 Capacitive reusable electrosurgical return electrode 121 1996
 
Mehl; Thomas L. (1)
4,566,454 Selected frequency hair removal device and method 78 1981
 
Minnesota Mining and Manufacturing Company (1)
5,797,902 Biomedical electrode providing early detection of accidental detachment 96 1996
 
MORVIL TECHNOLOGY LLC (1)
5,383,917 Device and method for multi-phase radio-frequency ablation 703 1991
 
NTERO SURGICAL, INC. (1)
6,645,198 Systems and methods for reducing post-surgical complications 77 2000
 
Omron Tateisi Electronics Co. (1)
4,993,430 Electrode device for high frequency thermotherapy apparatus 126 1989
 
ONESYS OY (1)
5,413,573 Device for surgical procedures 180 1994
 
PACESETTER AB (1)
4,805,621 Apparatus for measuring impedance of body tissue 129 1987
 
PACKAGING SERVICE CORPORATION OF KENTUCKY, A CORP. OF KY (1)
4,590,934 Bipolar cutter/coagulator 386 1983
 
PERFECT SURGICAL TECHNIQUES, INC. (1)
6,682,527 Method and system for heating tissue with a bipolar instrument 282 2001
 
PHYSIO-CONTROL, INC. (1)
5,605,150 Electrical interface for a portable electronic physiological instrument having separable components 115 1994
 
POST N MAIL, L.C. (1)
5,658,322 Bio-active frequency generator and method 114 1995
 
PREFERENTIAL, INC. (1)
5,718,246 Preferential induction of electrically mediated cell death from applied pulses 92 1996
 
RADIONICS, INC. (1)
4,411,266 Thermocouple radio frequency lesion electrode 477 1980
 
RCA Corporation (1)
4,311,154 Nonsymmetrical bulb applicator for hyperthermic treatment of the body 254 1979
 
RDM International, Inc. (1)
4,644,955 Circuit apparatus and method for electrothermal treatment of cancer eye 90 1985
 
REFRACTEC, INC. (1)
5,749,871 Method and apparatus for modifications of visual acuity by thermal means 115 1994
 
RESPIRATORY DIAGNOSTICS, INC. (1)
7,122,031 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 89 2001
 
Rocky Mountain Research, Inc. (1)
5,024,668 Retrograde perfusion system, components and method 230 1987
 
SEEDLING ENTERPRISES, INC. (1)
5,647,871 Electrosurgery with cooled electrodes 424 1995
 
SILICON VALLEY BANK (1)
6,517,538 Temperature-controlled snare 61 1999
 
SMITH & NEPHEW, INC. (1)
2004/0030,330 Electrosurgery systems 339 2003
 
Societe SATELEC (1)
4,281,373 High frequency voltage generator 106 1978
 
ST. JUDE MEDICAL, INC. (1)
5,300,068 Electrosurgical apparatus 321 1992
 
Surgical Design Corporation (1)
4,436,091 Surgical cutting instrument with release mechanism 96 1981
 
SUROS SURGICAL SYSTEMS, INC. (1)
5,685,840 Method and apparatus for minimally invasive tissue removal 132 1995
 
SYNERON MEDICAL LTD. (1)
5,569,242 Method and apparatus for controlled contraction of soft tissue 566 1995
 
TEXAS INSTRUMENTS INCORPORATED (1)
6,188,211 Current-efficient low-drop-out voltage regulator with improved load regulation and frequency response 159 1999
 
The B. F. Goodrich Company (1)
4,514,619 Indirect current monitoring via voltage and impedance monitoring 97 1982
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
5,323,778 Method and apparatus for magnetic resonance imaging and heating tissues 199 1991
 
The Johns Hopkins University (1)
5,370,672 Computer-controlled neurological stimulation system 221 1992
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,385,148 Cardiac imaging and ablation catheter 545 1993
 
TRANSAMERICA BUSINESS CREDIT CORPORATION (1)
5,520,684 Transurethral radio frequency apparatus for ablation of the prostate gland and method 337 1994
 
Trion, Inc. (1)
4,651,264 Power supply with arcing control and automatic overload protection 80 1984
 
TYCO HEALTHCARE GROUP LP (1)
2007/0173,804 System and method for tissue sealing 69 2007
 
United States Surgical Corporation (1)
5,483,952 Handle for surgical instruments 113 1994
 
UROLOGIX, INC. (1)
5,330,518 Method for treating interstitial tissue associated with microwave thermal therapy 232 1992
 
Utah Medical Products, Inc. (1)
5,160,334 Electrosurgical generator and suction apparatus 207 1991
 
VEIN RX, INC. (1)
2004/0015,159 Methods and apparatus for treating the wall of a blood vessel with electromagnetic energy 55 2003
 
VENTURE LENDING & LEASING, INC. (1)
5,370,675 Medical probe device and method 820 1993
 
VENTURE LENDING, A DIVISION OF CUPERTINO NATIONAL BANK & TRUST (1)
5,472,441 Device for treating cancer and non-malignant tumors and methods 557 1994
 
VIDAMED, INC. (1)
5,871,481 Tissue ablation apparatus and method 157 1997
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
6,155,975 Phacoemulsification apparatus with personal computer 99 1998
 
WILES, TERRY L. (1)
5,417,719 Method of using a spinal cord stimulation lead 307 1993
 
YAZAKI CORPORATION (1)
5,961,344 Cam-actuated terminal connector 74 1997
 
Other [Check patent profile for assignment information] (20)
4,209,018 Tissue coagulation apparatus and method 106 1978
4,321,926 Insertion detecting probe and electrolysis system 92 1979
4,343,308 Surgical ground detector 101 1980
4,492,231 Non-sticking electrocautery system and forceps 533 1982
4,472,661 High voltage, low power transformer for efficiently firing a gas discharge luminous display 80 1982
4,657,015 Control device for a high frequency surgical apparatus 139 1985
4,651,280 Electrosurgical control system using tissue conductivity 120 1985
4,741,334 Monitoring arrangement for a high frequency surgery device 107 1986
4,754,757 Method and apparatus for monitoring the surface contact of a neutral electrode of a HF-surgical apparatus 128 1986
4,890,610 Bipolar forceps 126 1989
5,108,389 Automatic smoke evacuator activator system for a surgical laser apparatus and method therefor 104 1990
5,430,434 Portable surgical early warning device 78 1993
5,921,982 Systems and methods for ablating body tissue 402 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 307 1997
6,132,429 Radiofrequency medical instrument and methods for luminal welding 111 1999
2003/0199,863 Systems and methods for controlling power in an electrosurgical probe 130 2002
2003/0181,898 RF filter for an electrosurgical generator 71 2003
2004/0015,216 Self-evacuating electrocautery device 77 2003
2004/0167,508 Vessel sealing system 54 2004
2005/0004,569 Coagulating electrosurgical instrument with tissue dam 133 2004

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
COVIDIEN AG (8)
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 1 2011
8,267,929 Method and system for programming and controlling an electrosurgical generator system 0 2011
8,647,340 Thermocouple measurement system 0 2012
8,485,993 Switched resonant ultrasonic power amplifier system 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 0 2012
8,591,506 Vessel sealing system 0 2012
 
COVIDIEN LP (6)
8,215,182 Apparatus and method for measuring pressure between jaw members 7 2008
8,568,444 Method of transferring rotational motion in an articulating surgical instrument 0 2012
8,454,602 Apparatus, system, and method for performing an electrosurgical procedure 0 2012
8,523,898 Endoscopic electrosurgical jaws with offset knife 0 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 0 2013
 
Coviden IP (1)
D680220 Slider handle for laparoscopic device 1 2012

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Apr 11, 2015
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 - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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