US Patent No: 8,113,057

Number of patents in Portfolio can not be more than 2000

Switched resonant ultrasonic power amplifier system

ALSO PUBLISHED AS: 20080287791
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Abstract

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A switched resonant power amplifier system for ultrasonic transducers is disclosed. The system includes an amplifier that receives and processes a driver output signal for generating a drive signal that is provided to an ultrasonic device for controlling output of the ultrasonic device. An output control circuit receives and processes a signal related to a feedback signal generated by the ultrasonic device and a divider reference signal, and generates a compensated clock signal that is adjusted for at least one of phase and frequency differences between the received feedback signal and the divider reference signal. A compensated drive circuit receives and processes the compensated clock signal for generating the divider reference signal, and for generating the driver output signal.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COVIDIEN AGNEUHAUSEN AM RHEINFALL626

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McPherson, James W Boulder, CO 46 713
Orszulak, James H Nederland, CO 82 2302

Cited Art Landscape

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6,656,177 Electrosurgical systems and techniques for sealing tissue 354 2002
7,060,063 Devices and methods for controlling initial movement of an electrosurgical electrode 75 2003
7,118,564 Medical treatment system with energy delivery device for limiting reuse 142 2003
6,977,495 Detection circuitry for surgical handpiece system 242 2004
 
OLYMPUS CORPORATION (9)
6,730,080 Electric operation apparatus 91 2001
6,740,085 Heating treatment system 90 2001
6,679,875 Medical treatment system 96 2002
6,855,142 Electrosurgical device for treating body tissue with high-frequency power 77 2002
7,063,692 Surgical operation system 66 2003
7,172,591 Electric operation apparatus 67 2003
7,001,381 Electric operation apparatus 150 2003
7,353,068 Control device for a medical system and control method for medical system 107 2004
7,324,357 Power supply apparatus for electric operation 40 2004
 
ETHICON, INC. (1)
5,403,312 Electrosurgical hemostatic device 998 1993
 
ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH (1)
5,531,774 Multichannel implantable cochlear stimulator having programmable bipolar, monopolar or multipolar electrode configurations 120 1994
 
Diapulse Corporation of America (1)
6,458,121 Apparatus for athermapeutic medical treatments 128 1996
 
CHASE MANHATTAN BANK, THE (1)
5,766,165 Return path monitoring system 102 1995
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,385,148 Cardiac imaging and ablation catheter 563 1993
 
CORDIS CORPORATION (1)
4,735,204 System for controlling an implanted neural stimulator 125 1986
 
UNIVERSITY OF WASHINGTON (2)
4,582,057 Fast pulse thermal cautery probe 178 1983
4,691,703 Thermal cautery system 124 1986
 
OLYMPUS OPTICAL CO., LTD. (20)
4,662,383 Endotract antenna device for hyperthermia 235 1983
4,615,330 Noise suppressor for electronic endoscope 114 1984
4,961,435 High-frequency capacitive heating electrode device 144 1988
5,425,704 Apparatus for generating ultrasonic oscillation 129 1992
5,540,683 High frequency cauterizing apparatus 147 1994
5,678,568 System control apparatus, medical system control apparatus and image-plane display method of medical system control apparatus 133 1994
5,609,560 Medical operation device control system for controlling a operation devices accessed respectively by ID codes 222 1995
5,628,771 Electromagnetic-wave thermatological device 133 1996
6,039,732 Electric operation apparatus 73 1996
5,931,836 Electrosurgery apparatus and medical apparatus combined with the same 151 1997
6,063,075 Electrosurgical apparatus and separation detecting method capable of stably monitoring separation state of return electrode 107 1998
6,383,183 High frequency treatment apparatus 95 1999
6,306,131 Electric medical apparatus 80 1999
6,436,096 Electrosurgical apparatus with stable coagulation 85 1999
6,464,696 Electrical surgical operating apparatus 72 2000
6,663,623 Electric surgical operation apparatus 70 2000
6,666,860 Electric treatment system 131 2000
6,635,057 Electric operation apparatus 86 2000
6,623,423 Surgical operation system 83 2001
6,511,476 Electrosurgical apparatus with stable coagulation 79 2001
 
HENRY, MCCORD, BEAN & MILLER, P.L.L.C. (1)
5,792,138 Cordless bipolar electrocautery unit with automatic power control 145 1996
 
NOVOCURE LIMITED (1)
7,146,210 Apparatus and method for optimizing tumor treatment efficiency by electric fields 75 2003
 
COLLABO INNOVATIONS, INC. (1)
7,250,746 Current mode switching regulator with predetermined on time 63 2005
 
ONESYS OY (1)
5,413,573 Device for surgical procedures 191 1994
 
DELPHI TECHNOLOGIES, INC. (2)
6,232,556 Flat wire to round wire connection system 51 2000
2005/0109,111 Sensor and method of transmitting sensor data 43 2003
 
Utah Medical Products, Inc. (1)
5,160,334 Electrosurgical generator and suction apparatus 214 1991
 
CORDIS WEBSTER, INC. (2)
5,462,521 Fluid cooled and perfused tip for a catheter 443 1993
6,017,338 Fluid cooled and perfused tip for a catheter 136 1995
 
PHOENIX CONTACT GMBH & CO. KG (1)
6,254,422 Electronic terminal for use on circuit boards 50 2000
 
RADIONICS, INC. (1)
4,411,266 Thermocouple radio frequency lesion electrode 495 1980
 
STRYKER CORPORATION (2)
7,422,582 Control console to which powered surgical handpieces are connected, the console configured to simultaneously energize more than one and less than all of the handpieces 63 2004
7,217,269 Electrosurgical control system 113 2004
 
THE UAB RESEARCH FOUNDATION (1)
6,743,225 Electrophysiologic measure of endpoints for ablation lesions created in fibrillating substrates 89 2001
 
NTERO SURGICAL, INC. (1)
6,645,198 Systems and methods for reducing post-surgical complications 79 2000
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
5,323,778 Method and apparatus for magnetic resonance imaging and heating tissues 208 1991
 
CARDIORHYTHM A CA CORPORATION (1)
5,573,533 Method and system for radiofrequency ablation of cardiac tissue 315 1992
 
WILSON, WALTER (1)
5,454,809 Electrosurgical catheter and method for resolving atherosclerotic plaque by radio frequency sparking 519 1994
 
SUROS SURGICAL SYSTEMS, INC. (1)
5,685,840 Method and apparatus for minimally invasive tissue removal 139 1995
 
VIDAMED, INC. (2)
5,865,788 Self-contained power sypply and monitoring station for RF tissue ablation 88 1996
5,871,481 Tissue ablation apparatus and method 161 1997
 
ADVANCED ENERGY INDUSTRIES, INC. (1)
7,305,311 Arc detection and handling in radio frequency power applications 63 2005
 
POST N MAIL, L.C. (1)
5,658,322 Bio-active frequency generator and method 119 1995
 
MORVIL TECHNOLOGY LLC (4)
5,383,917 Device and method for multi-phase radio-frequency ablation 732 1991
5,693,078 Device and method for multi-phase radio-frequency ablation 190 1994
5,620,481 Device for multi-phase radio-frequency ablation 173 1995
7,151,964 Device and method for multi-phase radio-frequency ablation 72 2003
 
BAYLIS MEDICAL COMPANY INC. (1)
6,565,562 Method for the radio frequency perforation and the enlargement of a body tissue 65 2001
 
LUMENIS INC. (1)
5,681,307 Fiber-optic plug and receptacle providing automatic appliance recognition 54 1994
 
UNIVERSITY OF ARIZONA (1)
6,423,057 Method and apparatus for monitoring and controlling tissue temperature and lesion formation in radio-frequency ablation procedures 144 2000
 
S.D.M.H. PTY. LTD. (3)
7,008,421 Apparatus and method for tissue resection 95 2003
7,223,264 Thermal coagulation of tissue during tissue resection 143 2004
7,341,586 Thermal coagulation of tissue during tissue resection 66 2004
 
Richard Wolf GmbH (2)
4,995,877 Device with a rotationally-driven surgical instrument 215 1989
5,324,283 Medical instrument having a switch for controlling an external device 98 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 317 1981
 
ANGIODYNAMICS, INC. (7)
5,458,597 Device for treating cancer and non-malignant tumors and methods 404 1993
5,536,267 Multiple electrode ablation apparatus 650 1994
5,599,345 RF treatment apparatus 387 1994
5,810,804 Multiple antenna ablation apparatus and method with cooling element 214 1996
6,663,624 RF treatment apparatus 121 1999
7,422,586 Tissue surface treatment apparatus and method 76 2001
6,962,587 Method for detecting and treating tumors using localized impedance measurement 207 2001
 
J. EBERSPAECHER GMBH & CO. KG (1)
5,216,338 Circuit arrangement for accurately and effectively driving an ultrasonic transducer 32 1991
 
ASTEC INTERNATIONAL LIMITED (1)
4,887,199 Start circuit for generation of pulse width modulated switching pulses for switch mode power supplies 113 1987
 
SYNERON MEDICAL LTD. (2)
5,569,242 Method and apparatus for controlled contraction of soft tissue 581 1995
6,939,344 Method for controlling skin temperature during thermal treatment 84 2001
 
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 134 1996
 
IRVINE BIOMEDICAL, INC. (2)
5,954,719 System for operating a RF ablation generator 183 1998
6,113,593 Ablation apparatus having temperature and force sensing capabilities 151 1999
 
MEDTRONIC ADVANCED ENERGY LLC (1)
6,689,131 Electrosurgical device having a tissue reduction sensor 208 2001
 
LEIBINGER GMBH (1)
4,474,179 Method and apparatus for the high frequency coagulation of protein for surgical purposes 204 1982
 
ENDOPHOTONIX, INC. (1)
7,232,437 Assessment of lesion transmurality 55 2005
 
THE JOHNS HOPKINS UNIVERSITY (1)
5,370,672 Computer-controlled neurological stimulation system 229 1992
 
UROLOGIX, INC. (1)
5,330,518 Method for treating interstitial tissue associated with microwave thermal therapy 241 1992
 
BOSTON SCIENTIFIC SCIMED, INC. (34)
5,122,137 Temperature controlled RF coagulation 593 1990
5,103,804 Expandable tip hemostatic probes and the like 365 1990
5,348,554 Catheter for RF ablation with cooled electrode 796 1992
5,403,311 Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue 869 1993
5,409,000 Endocardial mapping and ablation system utilizing separately controlled steerable ablation catheter with ultrasonic imaging capabilities and method 381 1993
5,423,811 Method for RF ablation using cooled electrode 546 1994
5,697,927 Catheter for RF ablation with cooled electrode and apparatus for use therewith 375 1994
5,545,161 Catheter for RF ablation having cooled electrode with electrically insulated sleeve 445 1994
6,235,022 RF generator and pump apparatus and system and method for cooled ablation 89 1996
5,954,717 Method and system for heating solid tissue 161 1997
6,080,149 Method and apparatus for monitoring solid tissue heating 146 1998
6,267,760 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body and forming an incision in tissue with minimal blood loss 91 1998
6,428,537 Electrophysiological treatment methods and apparatus employing high voltage pulse to render tissue temporarily unresponsive 109 1998
6,123,702 Systems and methods for controlling power in an electrosurgical probe 225 1998
6,183,468 Systems and methods for controlling power in an electrosurgical probe 183 1998
6,245,065 Systems and methods for controlling power in an electrosurgical probe 276 1998
6,337,998 Apparatus and method for treating tumors near the surface of an organ 136 1999
6,237,604 Systems and methods for preventing automatic identification of re-used single use devices 188 1999
6,611,793 Systems and methods to identify and disable re-use single use devices based on detecting environmental changes 115 1999
6,651,669 Systems and methods to identify and disable re-used single use devices based on cataloging catheter usage 105 1999
6,511,478 Medical probe with reduced number of temperature sensor wires 129 2000
6,494,880 Systems and methods for controlling power in an electrosurgical probe 115 2000
6,579,288 Fluid cooled apparatus for supporting diagnostic and therapeutic elements in contact with tissue 104 2000
6,578,579 Systems and methods for preventing automatic identification of re-used single use devices 154 2001
6,685,703 Generator and probe adapter 65 2001
6,685,700 Method and system for heating solid tissue 110 2001
6,790,206 Compensation for power variation along patient cables 76 2002
7,285,117 Medical device control systems 55 2002
7,357,800 Power supply and control apparatus and electrophysiology systems including the same 42 2003
6,792,390 Systems and methods to identify and disable re-used devices based on detecting environmental changes 77 2003
7,416,549 Multi-zone bipolar ablation probe assembly 64 2003
6,958,064 Systems and methods for performing simultaneous ablation 52 2003
7,001,379 Method and system for heating solid tissue 81 2004
7,354,436 Systems and methods for performing simultaneous ablation 43 2005
 
VALLEYLAB INC. (1)
6,251,106 Electrosurgical generator power control circuit and method 78 1998
 
DELTA ELECTRONICS, INC. (1)
2006/0291,178 High frequency circuit module 43 2006
 
GYRUS MEDICAL, INC. (1)
4,903,696 Electrosurgical generator 188 1988
 
FISHER & PAYKEL HEALTHCARE LIMITED (1)
5,452,725 Cable termination status detection 73 1993
 
GYRUS MEDICAL LIMITED (30)
5,647,869 Electrosurgical apparatus 518 1995
6,293,942 Electrosurgical generator method 327 1996
6,074,386 Electrosurgical instrument and an electrosurgical electrode assembly 483 1997
6,093,186 Electrosurgical generator and system 332 1997
6,416,509 Electrosurgical generator and system 309 1998
6,056,746 Electrosurgical instrument 358 1998
6,261,286 Electrosurgical generator and system 287 1998
6,306,134 Electrosurgical generator and system 313 1998
6,364,877 Electrosurgical generator and system 250 1998
6,228,081 Electrosurgery system and method 292 1999
6,325,799 Electrosurgical instrument 213 1999
6,582,427 Electrosurgery system 202 2000
6,398,781 Electrosurgery system 182 2000
6,547,786 Electrosurgery system and instrument 154 2000
6,758,846 Electrosurgical instrument and an electrosurgery system including such an instrument 203 2001
6,893,435 Electrosurgical system 183 2001
6,843,789 Electrosurgical system 194 2002
6,984,231 Electrosurgical system 190 2002
RE39358 Electrosurgery system and method 127 2002
6,929,641 Electrosurgical system 143 2003
6,966,907 Electrosurgical generator and system 281 2003
7,220,260 Electrosurgical system 163 2003
7,214,224 Electrosurgical system 134 2003
7,211,081 Electrosurgical generator 139 2003
7,282,048 Electrosurgical generator and system 145 2004
7,344,532 Electrosurgical generator and system 79 2004
7,195,627 Electrosurgical generator 138 2005
7,153,300 Electrosurgical system 129 2005
7,491,199 Electrosurgical generator and system 45 2005
2006/0111,711 Surgical instrument 131 2005
 
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH (1)
* 5,831,166 Method of non-contact micromanipulation using ultrasound 85 1996
 
BOSTON SCIENTIFIC LIMITED (1)
6,371,963 Device for controlled endoscopic penetration of injection needle 91 1998
 
GYRUS ENT L.L.C. (1)
7,131,445 Electrosurgical method and apparatus 157 2003
 
VEIN RX, INC. (1)
2004/0015,159 Methods and apparatus for treating the wall of a blood vessel with electromagnetic energy 56 2003
 
INTEGRA BURLINGTON MA, INC. (1)
5,230,623 Operating pointer with interactive computergraphics 552 1991
 
BOSTON SCIENTIFIC CORPORATION (2)
5,588,432 Catheters for imaging, sensing electrical potentials, and ablating tissue 726 1995
6,088,614 Tissue characterization to identify an ablation site 77 1997
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
6,155,975 Phacoemulsification apparatus with personal computer 103 1998
 
WELLS FARGO BANK, NATIONAL ASSOCIATION FLAIR INDUSTRIAL PARK RCBO (7)
4,429,694 Electrosurgical generator 111 1981
4,438,766 Electrosurgical generator 85 1981
4,437,464 Electrosurgical generator safety apparatus 133 1981
4,559,943 Electrosurgical generator 125 1983
4,727,874 Electrosurgical generator with high-frequency pulse width modulated feedback power control 309 1984
4,768,969 Electrical connector 55 1987
5,152,762 Current leakage control for electrosurgical generator 124 1990
 
SYNERGETICS USA, INC. (2)
5,318,563 Bipolar RF generator 271 1992
7,041,096 Electrosurgical generator apparatus 84 2002
 
VENTURE LENDING, A DIVISION OF CUPERTINO NATIONAL BANK & TRUST (1)
5,472,441 Device for treating cancer and non-malignant tumors and methods 570 1994
 
PRINGLE, SAMANTHA 106 SHERIDAN STREET (1)
* 5,559,688 Resonant power factor converter 46 1994
 
SULZER OSYPKA GMBH (1)
6,193,713 Method for the operation of a high frequency ablation apparatus and apparatus for the high frequency tissue ablation 92 1998
 
RESPIRATORY DIAGNOSTICS, INC. (1)
7,122,031 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 103 2001
 
Huettinger Medizintechnik GmbH & Co. KG (1)
6,245,063 Apparatus for decreasing or eliminating current leakages in electro medical equipment 47 1998
 
VENTURE LENDING & LEASING, INC. (1)
5,370,675 Medical probe device and method 844 1993
 
The Trustees of Columbia University in the City of New York (1)
6,626,901 Electrothermal instrument for sealing and joining or cutting tissue 280 1999
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
4,339,049 Containers for use in a self supporting assembly 98 1980
 
Trion, Inc. (1)
4,651,264 Power supply with arcing control and automatic overload protection 82 1984
 
SMITHS GROUP PLC (2)
4,961,047 Electrical power control apparatus and methods 98 1989
5,480,399 Electrosurgery monitor and apparatus 105 1994
 
KABUSHIKI KAISHA TOSHIBA (3)
5,290,283 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 63 1991
5,409,485 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 97 1993
7,364,972 Semiconductor device 40 2006
 
Bell Telephone Laboratories, Incorporated (1)
4,586,120 Current limit shutdown circuit with time delay 71 1983
 
FIRMA J. EBERSPACHER, A CORP. OF THE FED. REP. OF GERMANY (1)
5,113,116 Circuit arrangement for accurately and effectively driving an ultrasonic transducer 35 1989
 
PERFECT SURGICAL TECHNIQUES, INC. (1)
6,682,527 Method and system for heating tissue with a bipolar instrument 300 2001
 
NELLCOR PURITAN BENNETT INCORPORATED (2)
5,660,567 Medical sensor connector with removable encoding device 306 1995
6,044,283 Medical sensor with modulated encoding scheme 205 1998
 
ADVANCED MICRO DEVICES, INC. (1)
* 6,424,186 Circuit for dynamic signal drive strength compensation 10 2001
 
AN-CON GENETICS, INC. (1)
5,167,658 Method and apparatus for electrosurgical measurement 144 1991
 
KARL STORZ ENDOSCOPY-AMERICA, INC. (4)
4,818,954 High-frequency generator with automatic power-control for high-frequency surgery 131 1987
5,108,391 High-frequency generator for tissue cutting and for coagulating in high-frequency surgery 382 1989
5,788,688 Surgeon's command and control 149 1994
6,824,539 Touchscreen controlling medical equipment from multiple manufacturers 101 2002
 
INTEGRA LIFESCIENCES (IRELAND) LTD. (3)
4,931,047 Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis 563 1987
5,015,227 Apparatus for providing enhanced tissue fragmentation and/or hemostasis 332 1990
5,190,517 Electrosurgical and ultrasonic surgical system 519 1991
 
SMITHS MEDICAL ASD, INC. (1)
6,440,157 Air warming system for providing a controlled temperature of air to an air blanket 49 2000
 
ALTON DEAN MEDICAL (1)
5,254,117 Multi-functional endoscopic probe apparatus 204 1992
 
SIEMENS AKTIENGESELLSCHAFT (3)
4,862,889 Monitoring circuit for an RF surgical apparatus 146 1989
5,067,953 Circuit for controlling an electro-therapy device 54 1990
5,196,008 Method and circuit for monitoring electrode surfaces at the body tissue of a patient in an HF surgery device 98 1990
 
SMITHS INDUSTRIES PUBLIC LIMITED COMPANY (1)
5,540,682 Electrosurgery apparatus 72 1995
 
ELLMAN INTERNATIONAL, INC. (8)
5,342,356 Electrical coupling unit for electrosurgery 160 1992
5,954,686 Dual-frequency electrosurgical instrument 120 1998
6,238,388 Low-voltage electrosurgical apparatus 103 1999
6,652,514 Intelligent selection system for electrosurgical instrument 250 2001
6,712,813 RF probe for electrosurgical instrument 119 2001
6,994,707 Intelligent selection system for electrosurgical instrument 202 2003
7,094,231 Dual-mode electrosurgical instrument 70 2004
7,479,140 Intelligent selection system for electrosurgical instrument 43 2005
 
KIRWAN SURGICAL PRODUCTS LLC (2)
5,196,009 Non-sticking electrosurgical device having nickel tips 236 1991
7,402,754 Integral electrically conducting cord and lumen 42 2003
 
INFINEON TECHNOLOGIES AG (2)
* 5,448,466 Method for limiting the frequency of a voltage-controlled oscillator in a control circuit of a resonant converter switched-mode power supply, and control circuit for a resonant converter switched-mode power supply 20 1994
6,222,356 Current mode switching regulator configured such that a measuring resistor is not needed to measure the current at an inductor 83 1999
 
SMK CORPORATION (1)
6,843,682 Plug 47 2003
 
SMITH & NEPHEW, INC. (1)
2004/0030,330 Electrosurgery systems 358 2003
 
EP Technologies, Inc. (22)
5,383,874 Systems for identifying catheters and monitoring their use 398 1992
5,423,808 Systems and methods for radiofrequency ablation with phase sensitive power detection 332 1993
5,651,780 Systems for identifying catheters and monitoring their use 270 1994
5,688,267 Systems and methods for sensing multiple temperature conditions during tissue ablation 443 1995
5,735,846 Systems and methods for ablating body tissue using predicted maximum tissue temperature 195 1995
6,022,346 Tissue heating and ablation systems and methods using self-heated electrodes 59 1995
5,769,847 Systems and methods for controlling tissue ablation using multiple temperature sensing elements 187 1996
5,755,715 Tissue heating and ablation systems and methods using time-variable set point temperature curves for monitoring and control 168 1996
5,702,386 Non-linear control systems and methods for heating and ablating body tissue 154 1996
5,743,903 Cardiac ablation systems and methods using tissue temperature monitoring and control 196 1996
6,162,184 Systems and methods for sensing temperature within the body 72 1996
5,906,614 Tissue heating and ablation systems and methods using predicted temperature for monitoring and control 98 1997
5,897,552 Electrode and associated systems using thermally insulated temperature sensing elements 110 1997
6,053,912 Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes 188 1997
6,113,591 Systems and methods for sensing sub-surface temperatures in body tissue 93 1997
6,056,745 Systems and methods for obtaining desired lesion characteristics while ablating body tissue 147 1997
6,293,943 Tissue heating and ablation systems and methods which predict maximum tissue temperature 218 1998
6,014,581 Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure 178 1998
6,165,169 Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays 154 1999
6,245,061 Tissue heating and ablation systems and methods using self-heated electrodes 144 1999
6,652,513 Tissue heating and ablation systems and methods which predict maximum tissue temperature 79 2001
6,786,905 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body 230 2002
 
Cimarron Instruments, Inc. (1)
4,334,539 Electrosurgical generator control apparatus 124 1980
 
COVIDIEN AG (52)
5,772,659 Electrosurgical generator power control circuit and method 168 1995
6,033,399 Electrosurgical generator with adaptive power control 409 1997
6,228,080 Electrosurgical generator with adaptive power control 319 1998
6,398,779 Vessel sealing system 371 1999
6,796,981 Vessel sealing system 247 2002
7,083,618 Vessel sealer and divider 254 2002
6,860,881 Multiple RF return pad contact detection system 107 2002
7,137,980 Method and system for controlling output of RF medical generator 194 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 87 2003
RE40388 Electrosurgical generator with adaptive power control 64 2003
7,156,846 Vessel sealer and divider for use with small trocars and cannulas 226 2003
7,364,577 Vessel sealing system 87 2003
2008/0125,767 Thermocouple Measurement Circuit 68 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 206 2003
7,131,860 Connector systems for electrosurgical generator 208 2003
7,156,844 Electrosurgical pencil with improved controls 61 2003
7,044,948 Circuit for controlling arc energy from an electrosurgical generator 197 2003
7,147,638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 231 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 225 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 56 2004
7,491,201 Tissue sealer with non-conductive variable stop members and method of sealing tissue 164 2004
7,160,293 Multiple RF return pad contact detection system 85 2004
7,396,336 Switched resonant ultrasonic power amplifier system 158 2004
7,303,557 Vessel sealing system 207 2004
2005/0203,504 Method and system for controlling output of RF medical generator 216 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 58 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 179 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 60 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 50 2005
7,513,896 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 47 2006
2007/0173,810 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 48 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 55 2006
2008/0039,831 System and method for measuring initial tissue impedance 72 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 122 2006
7,416,437 Connector systems for electrosurgical generator 52 2006
2008/0082,094 Transformer for RF voltage sensing 47 2006
2007/0038,209 Method and system for controlling output of RF medical generator 55 2006
2007/0173,805 Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm 75 2007
2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 130 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 57 2007
2008/0248,685 Connector Systems for Electrosurgical Generator 30 2008
2008/0287,791 Switched Resonant Ultrasonic Power Amplifier System 37 2008
* 2008/0287,838 Switched Resonant Ultrasonic Power Amplifier System 37 2008
2009/0157,071 System and Method for Tissue Sealing 83 2009
2009/0157,072 System and Method for Tissue Sealing 72 2009
2009/0157,075 System and Method for Tissue Sealing 70 2009
2009/0157,073 Dual Synchro-Resonant Electrosurgical Apparatus with Bi-Directional Magnetic Coupling 42 2009
 
ABIOMED, INC. (1)
7,062,331 Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system 67 2002
 
YAZAKI CORPORATION (6)
5,511,993 Connector shield wire connection structure 47 1994
5,944,553 Flat cable connection structure 47 1997
5,961,344 Cam-actuated terminal connector 75 1997
5,959,253 Wire connection structure 44 1998
6,454,594 Terminal structure of flat circuit body 45 2001
6,422,896 Flat circuit member connector 41 2001
 
HAIR FREE CENTERS, INC. (1)
4,372,315 Impedance sensing epilator 85 1980
 
FREESCALE SEMICONDUCTOR, INC. (1)
4,931,717 Load response control and method 77 1989
 
NEUROTHERM, INC. (1)
7,226,447 Electrosurgical generator 70 2004
 
DRG (UK) LIMITED (1)
4,384,582 Patient plate for diathermy apparatus, and diathermy apparatus fitted with it 108 1980
 
COVIDIEN LP (8)
D574323 Generator 57 2007
2008/0281,316 Adjustable impedance electrosurgical electrodes 41 2007
2009/0018,536 Measurement and control systems and methods for electrosurgical procedures 54 2007
2009/0024,120 Connection cable and method for activating a voltage-controlled generator 32 2007
2009/0036,883 Electrosurgical systems and printed circuit boards for use therewith 37 2007
2009/0069,801 System and method for transmission of combined data stream 41 2007
2009/0082,765 REAL-TIME ARC CONTROL IN ELECTROSURGICAL GENERATORS 43 2007
2008/0177,199 System and Method of Using Thermal and Electrical Conductivity of Tissue 41 2008
 
MICROLINE SURGICAL, INC. (8)
5,836,943 Electrosurgical generator 127 1996
6,238,387 Electrosurgical generator 160 1998
6,241,723 Electrosurgical system 204 1999
6,692,489 Electrosurgical mode conversion system 120 2000
6,602,252 Combined dissecting, cauterizing, and stapling device 537 2002
6,695,837 Power supply for identification and control of electrical surgical tools 72 2002
7,033,351 Power supply for identification and control of electrical surgical tools 52 2003
7,175,621 Electrosurgical mode conversion system 76 2003
 
XO CARE A/S (1)
6,890,331 Electrosurgical apparatus 47 2001
 
ENTEGRIS, INC. (1)
2004/0121,494 Infrared thermopile detector system for semiconductor process monitoring and control 2003
 
LEAR AUTOMOTIVE DEARBORN, INC. (1)
5,860,832 Method for connecting flat flexible cable and a connector 48 1997
 
AVENT, INC. (2)
7,163,536 Determining connections of multiple energy sources and energy delivery devices 50 2004
7,294,127 Electrosurgical tissue treatment method 125 2005
 
E.P. Technologies Inc. (2)
5,722,975 Systems for radiofrequency ablation with phase sensitive power detection and control 151 1995
5,853,409 Systems and apparatus for sensing temperature in body tissue 103 1997
 
ENGINEERING & RESEARCH ASSOCIATES, INC. (5)
5,843,075 Probe for thermal ablation 162 1997
5,868,737 Apparatus and method for determining ablation 133 1997
6,039,731 Apparatus and method for determining the extent of ablation 152 1998
6,113,592 Apparatus and method for controlling ablation depth 173 1998
6,322,558 Apparatus and method for predicting ablation depth 144 1999
 
OMEGA ENGINEERING, INC. (1)
6,074,089 Thermoelectric product and method 72 1998
 
Aspen Laboratories, Inc. (2)
4,569,345 High output electrosurgical unit 89 1984
4,848,335 Return electrode contact monitor 122 1988
 
GENERAL ELECTRIC COMPANY (2)
4,559,496 LCD Hook-on digital ammeter 74 1984
5,807,253 Patient electrical isolation system 47 1997
 
OERTLI-INSTRUMENTE AG (1)
5,346,491 Feed device for bipolar electrodes for capsulotomy 88 1991
 
Burr-Brown Corporation (1)
5,304,917 Compact low noise low power dual mode battery charging circuit 63 1993
 
VALVECURE, INC. (1)
7,229,469 Methods for treating and repairing mitral valve annulus 70 2003
 
STORZ INSTRUMENT COMPANY (3)
5,249,121 Remote control console for surgical control system 185 1989
5,157,603 Control system for ophthalmic surgical instruments 108 1989
5,964,746 Microsurgical system having isolated handpiece detection apparatus 44 1997
 
STORZ ENDOSKOP PRODUKTIONS GMBH (3)
7,203,556 Device for monitoring medical equipment 47 2004
7,238,181 High-frequency surgery generator 41 2004
7,244,255 High-frequency surgical generator 42 2004
 
INTACT MEDICAL CORPORATION (3)
6,740,079 Electrosurgical generator 148 2001
7,004,174 Electrosurgery with infiltration anesthesia 80 2002
6,923,804 Electrosurgical generator 142 2003
 
FLUGSTAD, BENJAMIN A. (1)
6,784,405 Variable frequency automated capacitive radio frequency (RF) dielectric heating system 77 2003
 
STORZ ENDOSKOP GMBH (4)
6,261,285 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 68 1998
6,275,786 Device for monitoring a neutral electrode during HF surgery 95 1999
6,864,686 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 93 2002
7,115,121 Electrosurgical apparatus 47 2003
 
ARTHROCARE CORPORATION (13)
5,843,019 Shaped electrodes and methods for electrosurgical cutting and ablation 297 1996
5,766,153 Methods and apparatus for surgical cutting 313 1996
6,228,078 Methods for electrosurgical dermatological treatment 217 1997
6,557,559 Electrosurgical systems and methods with temperature control 97 1998
6,142,992 Power supply for limiting power in electrosurgery 266 1998
6,235,020 Power supply and methods for fluid delivery in electrosurgery 298 1998
6,296,636 Power supply and methods for limiting power in electrosurgery 286 1999
6,632,193 Systems and methods for electrosurgical tissue treatment 257 2000
6,482,201 Systems and methods for tissue resection, ablation and aspiration 183 2000
6,468,270 System and method for electrosurgical treatment of intervertebral discs 122 2000
6,974,453 Dual mode electrosurgical clamping probe and related methods 157 2001
6,837,888 Electrosurgical probe with movable return electrode and methods related thereto 222 2002
2005/0004,634 Methods for electrosurgical treatment of spinal tissue 139 2004
 
ERICSSON RAYNET (2)
5,694,304 High efficiency resonant switching converters 85 1995
5,712,772 Controller for high efficiency resonant switching converters 125 1995
 
ZOLL CIRCULATION, INC. (3)
6,620,189 Method and system for control of a patient's body temperature by way of a transluminally insertable heat exchange catheter 77 2000
6,602,243 Foley catheter having redundant temperature sensors and method 89 2001
6,974,463 System and method for patient temperature control employing temperature projection algorithm 64 2002
 
MAQUET CARDIOVASCULAR LLC (2)
7,192,427 Apparatus and method for assessing transmurality of a tissue ablation 55 2003
2004/0102,772 Apparatus and method for minimally invasive surgery using rotational cutting tool 4 2003
 
RDM International, Inc. (1)
4,644,955 Circuit apparatus and method for electrothermal treatment of cancer eye 91 1985
 
KIMBERLY-CLARK INC. (1)
7,258,688 Computerized electrical signal generator 70 2002
 
CARL ZEISS SURGICAL GMBH (1)
5,422,926 X-ray source with shaped radiation pattern 166 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
COVIDIEN AG (3)
8,647,340 Thermocouple measurement system 0 2012
8,485,993 Switched resonant ultrasonic power amplifier system 0 2012
8,966,981 Switched resonant ultrasonic power amplifier system 0 2013
 
COVIDIEN LP (2)
* 8,685,015 System and method for multi-pole phase-shifted radio frequency application 0 2009
8,486,061 Imaginary impedance process monitoring and intelligent shut-off 0 2012
 
ORTHOSENSOR (1)
* 8,337,428 Zero-crossing receiver for orthopedic parameter sensing 0 2010
* Cited By Examiner

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