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 RHEINFALL632

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McPherson, James W Boulder, US 28 414
Orszulak, James H Nederland, US 52 1995

Cited Art Landscape

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6,656,177 Electrosurgical systems and techniques for sealing tissue 407 2002
7,060,063 Devices and methods for controlling initial movement of an electrosurgical electrode 80 2003
7,118,564 Medical treatment system with energy delivery device for limiting reuse 157 2003
6,977,495 Detection circuitry for surgical handpiece system 267 2004
 
OLYMPUS CORPORATION (9)
6,730,080 Electric operation apparatus 94 2001
6,740,085 Heating treatment system 93 2001
6,679,875 Medical treatment system 109 2002
6,855,142 Electrosurgical device for treating body tissue with high-frequency power 82 2002
7,063,692 Surgical operation system 68 2003
7,172,591 Electric operation apparatus 69 2003
7,001,381 Electric operation apparatus 161 2003
7,353,068 Control device for a medical system and control method for medical system 121 2004
7,324,357 Power supply apparatus for electric operation 42 2004
 
ETHICON, INC. (1)
5,403,312 Electrosurgical hemostatic device 1066 1993
 
ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH (1)
5,531,774 Multichannel implantable cochlear stimulator having programmable bipolar, monopolar or multipolar electrode configurations 125 1994
 
Diapulse Corporation of America (1)
6,458,121 Apparatus for athermapeutic medical treatments 136 1996
 
CHASE MANHATTAN BANK, THE (1)
5,766,165 Return path monitoring system 106 1995
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,385,148 Cardiac imaging and ablation catheter 578 1993
 
CORDIS CORPORATION (1)
4,735,204 System for controlling an implanted neural stimulator 130 1986
 
UNIVERSITY OF WASHINGTON (2)
4,582,057 Fast pulse thermal cautery probe 183 1983
4,691,703 Thermal cautery system 128 1986
 
OLYMPUS OPTICAL CO., LTD. (20)
4,662,383 Endotract antenna device for hyperthermia 243 1983
4,615,330 Noise suppressor for electronic endoscope 118 1984
4,961,435 High-frequency capacitive heating electrode device 149 1988
5,425,704 Apparatus for generating ultrasonic oscillation 134 1992
5,540,683 High frequency cauterizing apparatus 152 1994
5,678,568 System control apparatus, medical system control apparatus and image-plane display method of medical system control apparatus 148 1994
5,609,560 Medical operation device control system for controlling a operation devices accessed respectively by ID codes 235 1995
5,628,771 Electromagnetic-wave thermatological device 142 1996
6,039,732 Electric operation apparatus 75 1996
5,931,836 Electrosurgery apparatus and medical apparatus combined with the same 153 1997
6,063,075 Electrosurgical apparatus and separation detecting method capable of stably monitoring separation state of return electrode 109 1998
6,383,183 High frequency treatment apparatus 102 1999
6,306,131 Electric medical apparatus 82 1999
6,436,096 Electrosurgical apparatus with stable coagulation 89 1999
6,464,696 Electrical surgical operating apparatus 76 2000
6,663,623 Electric surgical operation apparatus 72 2000
6,666,860 Electric treatment system 145 2000
6,635,057 Electric operation apparatus 92 2000
6,623,423 Surgical operation system 86 2001
6,511,476 Electrosurgical apparatus with stable coagulation 83 2001
 
HENRY, MCCORD, BEAN & MILLER, P.L.L.C. (1)
5,792,138 Cordless bipolar electrocautery unit with automatic power control 163 1996
 
NOVOCURE LIMITED (1)
7,146,210 Apparatus and method for optimizing tumor treatment efficiency by electric fields 80 2003
 
COLLABO INNOVATIONS, INC. (1)
7,250,746 Current mode switching regulator with predetermined on time 66 2005
 
ONESYS OY (1)
5,413,573 Device for surgical procedures 219 1994
 
DELPHI TECHNOLOGIES, INC. (2)
6,232,556 Flat wire to round wire connection system 53 2000
2005/0109,111 Sensor and method of transmitting sensor data 45 2003
 
Utah Medical Products Inc. (1)
5,160,334 Electrosurgical generator and suction apparatus 222 1991
 
Cordis Webster, Inc. (2)
5,462,521 Fluid cooled and perfused tip for a catheter 459 1993
6,017,338 Fluid cooled and perfused tip for a catheter 139 1995
 
PHOENIX CONTACT GMBH & CO. KG (1)
6,254,422 Electronic terminal for use on circuit boards 52 2000
 
RADIONICS, INC. (1)
4,411,266 Thermocouple radio frequency lesion electrode 516 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 69 2004
7,217,269 Electrosurgical control system 128 2004
 
THE UAB RESEARCH FOUNDATION (1)
6,743,225 Electrophysiologic measure of endpoints for ablation lesions created in fibrillating substrates 93 2001
 
NTERO SURGICAL, INC. (1)
6,645,198 Systems and methods for reducing post-surgical complications 82 2000
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
5,323,778 Method and apparatus for magnetic resonance imaging and heating tissues 215 1991
 
CARDIORHYTHM A CA CORPORATION (1)
5,573,533 Method and system for radiofrequency ablation of cardiac tissue 341 1992
 
WILSON, WALTER (1)
5,454,809 Electrosurgical catheter and method for resolving atherosclerotic plaque by radio frequency sparking 550 1994
 
SUROS SURGICAL SYSTEMS, INC. (1)
5,685,840 Method and apparatus for minimally invasive tissue removal 145 1995
 
Vidamed, Inc. (2)
5,865,788 Self-contained power sypply and monitoring station for RF tissue ablation 97 1996
5,871,481 Tissue ablation apparatus and method 174 1997
 
Advanced Energy Industries, Inc. (1)
7,305,311 Arc detection and handling in radio frequency power applications 67 2005
 
POST N MAIL, L.C. (1)
5,658,322 Bio-active frequency generator and method 124 1995
 
MORVIL TECHNOLOGY LLC (4)
5,383,917 Device and method for multi-phase radio-frequency ablation 766 1991
5,693,078 Device and method for multi-phase radio-frequency ablation 197 1994
5,620,481 Device for multi-phase radio-frequency ablation 184 1995
7,151,964 Device and method for multi-phase radio-frequency ablation 76 2003
 
BAYLIS MEDICAL COMPANY INC. (1)
6,565,562 Method for the radio frequency perforation and the enlargement of a body tissue 68 2001
 
LUMENIS, INC. (1)
5,681,307 Fiber-optic plug and receptacle providing automatic appliance recognition 56 1994
 
THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA (1)
6,423,057 Method and apparatus for monitoring and controlling tissue temperature and lesion formation in radio-frequency ablation procedures 163 2000
 
S.D.M.H. PTY. LTD. (3)
7,008,421 Apparatus and method for tissue resection 98 2003
7,223,264 Thermal coagulation of tissue during tissue resection 154 2004
7,341,586 Thermal coagulation of tissue during tissue resection 70 2004
 
RICHARD WOLF GMBH (2)
4,995,877 Device with a rotationally-driven surgical instrument 226 1989
5,324,283 Medical instrument having a switch for controlling an external device 100 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 326 1981
 
ANGIODYNAMICS, INC. (7)
5,458,597 Device for treating cancer and non-malignant tumors and methods 421 1993
5,536,267 Multiple electrode ablation apparatus 665 1994
5,599,345 RF treatment apparatus 417 1994
5,810,804 Multiple antenna ablation apparatus and method with cooling element 222 1996
6,663,624 RF treatment apparatus 125 1999
7,422,586 Tissue surface treatment apparatus and method 86 2001
6,962,587 Method for detecting and treating tumors using localized impedance measurement 217 2001
 
J. EBERSPAECHER GMBH & CO. KG (1)
5,216,338 Circuit arrangement for accurately and effectively driving an ultrasonic transducer 33 1991
 
Astec International Limited (1)
4,887,199 Start circuit for generation of pulse width modulated switching pulses for switch mode power supplies 116 1987
 
SYNERON MEDICAL LTD. (2)
5,569,242 Method and apparatus for controlled contraction of soft tissue 600 1995
6,939,344 Method for controlling skin temperature during thermal treatment 87 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 136 1996
 
IRVINE BIOMEDICAL, INC. (2)
5,954,719 System for operating a RF ablation generator 202 1998
6,113,593 Ablation apparatus having temperature and force sensing capabilities 172 1999
 
MEDTRONIC ADVANCED ENERGY LLC (1)
6,689,131 Electrosurgical device having a tissue reduction sensor 220 2001
 
LEIBINGER GMBH (1)
4,474,179 Method and apparatus for the high frequency coagulation of protein for surgical purposes 208 1982
 
ENDOPHOTONIX, INC. (1)
7,232,437 Assessment of lesion transmurality 58 2005
 
THE JOHNS HOPKINS UNIVERSITY (1)
5,370,672 Computer-controlled neurological stimulation system 238 1992
 
UROLOGIX, INC. (1)
5,330,518 Method for treating interstitial tissue associated with microwave thermal therapy 259 1992
 
BOSTON SCIENTIFIC SCIMED, INC. (34)
5,122,137 Temperature controlled RF coagulation 609 1990
5,103,804 Expandable tip hemostatic probes and the like 381 1990
5,348,554 Catheter for RF ablation with cooled electrode 817 1992
5,403,311 Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue 903 1993
5,409,000 Endocardial mapping and ablation system utilizing separately controlled steerable ablation catheter with ultrasonic imaging capabilities and method 401 1993
5,423,811 Method for RF ablation using cooled electrode 561 1994
5,697,927 Catheter for RF ablation with cooled electrode and apparatus for use therewith 391 1994
5,545,161 Catheter for RF ablation having cooled electrode with electrically insulated sleeve 468 1994
6,235,022 RF generator and pump apparatus and system and method for cooled ablation 94 1996
5,954,717 Method and system for heating solid tissue 182 1997
6,080,149 Method and apparatus for monitoring solid tissue heating 152 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 95 1998
6,428,537 Electrophysiological treatment methods and apparatus employing high voltage pulse to render tissue temporarily unresponsive 123 1998
6,123,702 Systems and methods for controlling power in an electrosurgical probe 256 1998
6,183,468 Systems and methods for controlling power in an electrosurgical probe 207 1998
6,245,065 Systems and methods for controlling power in an electrosurgical probe 295 1998
6,337,998 Apparatus and method for treating tumors near the surface of an organ 141 1999
6,237,604 Systems and methods for preventing automatic identification of re-used single use devices 200 1999
6,611,793 Systems and methods to identify and disable re-use single use devices based on detecting environmental changes 120 1999
6,651,669 Systems and methods to identify and disable re-used single use devices based on cataloging catheter usage 111 1999
6,511,478 Medical probe with reduced number of temperature sensor wires 158 2000
6,494,880 Systems and methods for controlling power in an electrosurgical probe 125 2000
6,579,288 Fluid cooled apparatus for supporting diagnostic and therapeutic elements in contact with tissue 110 2000
6,578,579 Systems and methods for preventing automatic identification of re-used single use devices 162 2001
6,685,703 Generator and probe adapter 76 2001
6,685,700 Method and system for heating solid tissue 116 2001
6,790,206 Compensation for power variation along patient cables 90 2002
7,285,117 Medical device control systems 57 2002
7,357,800 Power supply and control apparatus and electrophysiology systems including the same 44 2003
6,792,390 Systems and methods to identify and disable re-used devices based on detecting environmental changes 82 2003
7,416,549 Multi-zone bipolar ablation probe assembly 67 2003
6,958,064 Systems and methods for performing simultaneous ablation 54 2003
7,001,379 Method and system for heating solid tissue 86 2004
7,354,436 Systems and methods for performing simultaneous ablation 45 2005
 
VALLEYLAB INC. (1)
6,251,106 Electrosurgical generator power control circuit and method 82 1998
 
DELTA ELECTRONICS, INC. (1)
2006/0291,178 High frequency circuit module 45 2006
 
GYRUS MEDICAL, INC. (1)
4,903,696 Electrosurgical generator 206 1988
 
FISHER & PAYKEL HEALTHCARE LIMITED (1)
5,452,725 Cable termination status detection 76 1993
 
GYRUS MEDICAL LIMITED (30)
5,647,869 Electrosurgical apparatus 554 1995
6,293,942 Electrosurgical generator method 368 1996
6,074,386 Electrosurgical instrument and an electrosurgical electrode assembly 521 1997
6,093,186 Electrosurgical generator and system 361 1997
6,416,509 Electrosurgical generator and system 336 1998
6,056,746 Electrosurgical instrument 399 1998
6,261,286 Electrosurgical generator and system 314 1998
6,306,134 Electrosurgical generator and system 339 1998
6,364,877 Electrosurgical generator and system 280 1998
6,228,081 Electrosurgery system and method 317 1999
6,325,799 Electrosurgical instrument 253 1999
6,582,427 Electrosurgery system 245 2000
6,398,781 Electrosurgery system 210 2000
6,547,786 Electrosurgery system and instrument 181 2000
6,758,846 Electrosurgical instrument and an electrosurgery system including such an instrument 234 2001
6,893,435 Electrosurgical system 209 2001
6,843,789 Electrosurgical system 223 2002
6,984,231 Electrosurgical system 215 2002
RE39358 Electrosurgery system and method 150 2002
6,929,641 Electrosurgical system 167 2003
6,966,907 Electrosurgical generator and system 314 2003
7,220,260 Electrosurgical system 188 2003
7,214,224 Electrosurgical system 158 2003
7,211,081 Electrosurgical generator 164 2003
7,282,048 Electrosurgical generator and system 172 2004
7,344,532 Electrosurgical generator and system 99 2004
7,195,627 Electrosurgical generator 163 2005
7,153,300 Electrosurgical system 153 2005
7,491,199 Electrosurgical generator and system 48 2005
2006/0111,711 Surgical instrument 158 2005
 
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH (1)
* 5,831,166 Method of non-contact micromanipulation using ultrasound 90 1996
 
BOSTON SCIENTIFIC LIMITED (1)
6,371,963 Device for controlled endoscopic penetration of injection needle 97 1998
 
Gyrus ENT, L.L.C. (1)
7,131,445 Electrosurgical method and apparatus 188 2003
 
VEIN RX, INC. (1)
2004/0015,159 Methods and apparatus for treating the wall of a blood vessel with electromagnetic energy 58 2003
 
INTEGRA BURLINGTON MA, INC. (1)
5,230,623 Operating pointer with interactive computergraphics 569 1991
 
BOSTON SCIENTIFIC CORPORATION (2)
5,588,432 Catheters for imaging, sensing electrical potentials, and ablating tissue 754 1995
6,088,614 Tissue characterization to identify an ablation site 80 1997
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
6,155,975 Phacoemulsification apparatus with personal computer 106 1998
 
WELLS FARGO BANK, NATIONAL ASSOCIATION FLAIR INDUSTRIAL PARK RCBO (7)
4,429,694 Electrosurgical generator 114 1981
4,438,766 Electrosurgical generator 87 1981
4,437,464 Electrosurgical generator safety apparatus 136 1981
4,559,943 Electrosurgical generator 129 1983
4,727,874 Electrosurgical generator with high-frequency pulse width modulated feedback power control 318 1984
4,768,969 Electrical connector 67 1987
5,152,762 Current leakage control for electrosurgical generator 134 1990
 
SYNERGETICS USA, INC. (2)
5,318,563 Bipolar RF generator 280 1992
7,041,096 Electrosurgical generator apparatus 90 2002
 
VENTURE LENDING, A DIVISION OF CUPERTINO NATIONAL BANK & TRUST (1)
5,472,441 Device for treating cancer and non-malignant tumors and methods 586 1994
 
PRINGLE, SAMANTHA 106 SHERIDAN STREET (1)
* 5,559,688 Resonant power factor converter 48 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 98 1998
 
RESPIRATORY DIAGNOSTICS, INC. (1)
7,122,031 Graphical user interface for association with an electrode structure deployed in contact with a tissue region 111 2001
 
Huettinger Medizintechnik GmbH & Co. KG (1)
6,245,063 Apparatus for decreasing or eliminating current leakages in electro medical equipment 49 1998
 
VENTURE LENDING & LEASING, INC. (1)
5,370,675 Medical probe device and method 860 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 305 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 84 1984
 
SMITHS GROUP PLC (2)
4,961,047 Electrical power control apparatus and methods 100 1989
5,480,399 Electrosurgery monitor and apparatus 107 1994
 
KABUSHIKI KAISHA TOSHIBA (3)
5,290,283 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 66 1991
5,409,485 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 99 1993
7,364,972 Semiconductor device 42 2006
 
BELL TELEPHONE LABORATORIES, INCORPORATED (1)
4,586,120 Current limit shutdown circuit with time delay 74 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 41 1989
 
Perfect Surgical Techniques, Inc. (1)
6,682,527 Method and system for heating tissue with a bipolar instrument 332 2001
 
NELLCOR PURITAN BENNETT INCORPORATED (2)
5,660,567 Medical sensor connector with removable encoding device 321 1995
6,044,283 Medical sensor with modulated encoding scheme 210 1998
 
ADVANCED MICRO DEVICES, INC. (1)
* 6,424,186 Circuit for dynamic signal drive strength compensation 11 2001
 
AN-CON GENETICS, INC. (1)
5,167,658 Method and apparatus for electrosurgical measurement 147 1991
 
KARL STORZ ENDOSCOPY-AMERICA, INC. (4)
4,818,954 High-frequency generator with automatic power-control for high-frequency surgery 134 1987
5,108,391 High-frequency generator for tissue cutting and for coagulating in high-frequency surgery 390 1989
5,788,688 Surgeon's command and control 154 1994
6,824,539 Touchscreen controlling medical equipment from multiple manufacturers 104 2002
 
INTEGRA LIFESCIENCES (IRELAND) LTD. (3)
4,931,047 Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis 588 1987
5,015,227 Apparatus for providing enhanced tissue fragmentation and/or hemostasis 360 1990
5,190,517 Electrosurgical and ultrasonic surgical system 545 1991
 
SMITHS MEDICAL ASD, INC. (1)
6,440,157 Air warming system for providing a controlled temperature of air to an air blanket 53 2000
 
ALTON DEAN MEDICAL (1)
5,254,117 Multi-functional endoscopic probe apparatus 215 1992
 
SIEMENS AKTIENGESELLSCHAFT (3)
4,862,889 Monitoring circuit for an RF surgical apparatus 148 1989
5,067,953 Circuit for controlling an electro-therapy device 58 1990
5,196,008 Method and circuit for monitoring electrode surfaces at the body tissue of a patient in an HF surgery device 100 1990
 
SMITHS INDUSTRIES PUBLIC LIMITED COMPANY (1)
5,540,682 Electrosurgery apparatus 74 1995
 
ELLMAN INTERNATIONAL, INC. (8)
5,342,356 Electrical coupling unit for electrosurgery 165 1992
5,954,686 Dual-frequency electrosurgical instrument 125 1998
6,238,388 Low-voltage electrosurgical apparatus 105 1999
6,652,514 Intelligent selection system for electrosurgical instrument 263 2001
6,712,813 RF probe for electrosurgical instrument 121 2001
6,994,707 Intelligent selection system for electrosurgical instrument 213 2003
7,094,231 Dual-mode electrosurgical instrument 74 2004
7,479,140 Intelligent selection system for electrosurgical instrument 46 2005
 
KIRWAN SURGICAL PRODUCTS LLC (2)
5,196,009 Non-sticking electrosurgical device having nickel tips 246 1991
7,402,754 Integral electrically conducting cord and lumen 44 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 21 1994
6,222,356 Current mode switching regulator configured such that a measuring resistor is not needed to measure the current at an inductor 86 1999
 
SMK CORPORATION (1)
6,843,682 Plug 50 2003
 
SMITH & NEPHEW, INC. (1)
2004/0030,330 Electrosurgery systems 384 2003
 
EP Technologies, Inc. (22)
5,383,874 Systems for identifying catheters and monitoring their use 426 1992
5,423,808 Systems and methods for radiofrequency ablation with phase sensitive power detection 343 1993
5,651,780 Systems for identifying catheters and monitoring their use 305 1994
5,688,267 Systems and methods for sensing multiple temperature conditions during tissue ablation 466 1995
5,735,846 Systems and methods for ablating body tissue using predicted maximum tissue temperature 217 1995
6,022,346 Tissue heating and ablation systems and methods using self-heated electrodes 62 1995
5,769,847 Systems and methods for controlling tissue ablation using multiple temperature sensing elements 207 1996
5,755,715 Tissue heating and ablation systems and methods using time-variable set point temperature curves for monitoring and control 184 1996
5,702,386 Non-linear control systems and methods for heating and ablating body tissue 176 1996
5,743,903 Cardiac ablation systems and methods using tissue temperature monitoring and control 217 1996
6,162,184 Systems and methods for sensing temperature within the body 87 1996
5,906,614 Tissue heating and ablation systems and methods using predicted temperature for monitoring and control 116 1997
5,897,552 Electrode and associated systems using thermally insulated temperature sensing elements 142 1997
6,053,912 Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes 195 1997
6,113,591 Systems and methods for sensing sub-surface temperatures in body tissue 95 1997
6,056,745 Systems and methods for obtaining desired lesion characteristics while ablating body tissue 153 1997
6,293,943 Tissue heating and ablation systems and methods which predict maximum tissue temperature 237 1998
6,014,581 Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure 191 1998
6,165,169 Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays 161 1999
6,245,061 Tissue heating and ablation systems and methods using self-heated electrodes 149 1999
6,652,513 Tissue heating and ablation systems and methods which predict maximum tissue temperature 101 2001
6,786,905 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body 250 2002
 
Cimarron Instruments, Inc. (1)
4,334,539 Electrosurgical generator control apparatus 131 1980
 
COVIDIEN AG (52)
5,772,659 Electrosurgical generator power control circuit and method 200 1995
6,033,399 Electrosurgical generator with adaptive power control 457 1997
6,228,080 Electrosurgical generator with adaptive power control 339 1998
6,398,779 Vessel sealing system 395 1999
6,796,981 Vessel sealing system 281 2002
7,083,618 Vessel sealer and divider 276 2002
6,860,881 Multiple RF return pad contact detection system 109 2002
7,137,980 Method and system for controlling output of RF medical generator 228 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 90 2003
RE40388 Electrosurgical generator with adaptive power control 76 2003
7,156,846 Vessel sealer and divider for use with small trocars and cannulas 244 2003
7,364,577 Vessel sealing system 101 2003
2008/0125,767 Thermocouple Measurement Circuit 72 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 213 2003
7,131,860 Connector systems for electrosurgical generator 229 2003
7,156,844 Electrosurgical pencil with improved controls 65 2003
7,044,948 Circuit for controlling arc energy from an electrosurgical generator 207 2003
7,147,638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 244 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 233 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 57 2004
7,491,201 Tissue sealer with non-conductive variable stop members and method of sealing tissue 178 2004
7,160,293 Multiple RF return pad contact detection system 87 2004
7,396,336 Switched resonant ultrasonic power amplifier system 169 2004
7,303,557 Vessel sealing system 228 2004
2005/0203,504 Method and system for controlling output of RF medical generator 223 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 59 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 185 2005
2006/0079,871 Universal foot switch contact port 53 2005
2007/0093,801 Circuit and method for reducing stored energy in an electrosurgical generator 62 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 52 2005
7,513,896 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 52 2006
2007/0173,810 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 50 2006
2006/0178,664 Circuit for controlling arc energy from an electrosurgical generator 54 2006
2007/0208,339 System and method for controlling electrosurgical snares 53 2006
2007/0225,698 System and method for generating radio frequency energy 46 2006
2007/0250,052 Arc based adaptive control system for an electrosurgical unit 46 2006
2007/0265,612 System and method for reducing leakage current in an electrosurgical generator 57 2006
2008/0039,831 System and method for measuring initial tissue impedance 77 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 132 2006
7,416,437 Connector systems for electrosurgical generator 63 2006
2008/0082,094 Transformer for RF voltage sensing 48 2006
2007/0038,209 Method and system for controlling output of RF medical generator 58 2006
2007/0173,805 Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm 90 2007
2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 154 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 59 2007
2008/0248,685 Connector Systems for Electrosurgical Generator 31 2008
2008/0287,791 Switched Resonant Ultrasonic Power Amplifier System 42 2008
* 2008/0287,838 Switched Resonant Ultrasonic Power Amplifier System 42 2008
2009/0157,071 System and Method for Tissue Sealing 89 2009
2009/0157,072 System and Method for Tissue Sealing 77 2009
2009/0157,075 System and Method for Tissue Sealing 76 2009
2009/0157,073 Dual Synchro-Resonant Electrosurgical Apparatus with Bi-Directional Magnetic Coupling 45 2009
 
Abiomed, Inc. (1)
7,062,331 Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system 73 2002
 
YAZAKI CORPORATION (6)
5,511,993 Connector shield wire connection structure 49 1994
5,944,553 Flat cable connection structure 49 1997
5,961,344 Cam-actuated terminal connector 77 1997
5,959,253 Wire connection structure 46 1998
6,454,594 Terminal structure of flat circuit body 48 2001
6,422,896 Flat circuit member connector 43 2001
 
HAIR FREE CENTERS, INC. (1)
4,372,315 Impedance sensing epilator 87 1980
 
FREESCALE SEMICONDUCTOR, INC. (1)
4,931,717 Load response control and method 80 1989
 
Neurotherm, Inc. (1)
7,226,447 Electrosurgical generator 73 2004
 
DRG (UK) LIMITED (1)
4,384,582 Patient plate for diathermy apparatus, and diathermy apparatus fitted with it 110 1980
 
COVIDIEN LP (8)
D574323 Generator 72 2007
2008/0281,316 Adjustable impedance electrosurgical electrodes 43 2007
2009/0018,536 Measurement and control systems and methods for electrosurgical procedures 58 2007
2009/0024,120 Connection cable and method for activating a voltage-controlled generator 33 2007
2009/0036,883 Electrosurgical systems and printed circuit boards for use therewith 40 2007
2009/0069,801 System and method for transmission of combined data stream 43 2007
2009/0082,765 REAL-TIME ARC CONTROL IN ELECTROSURGICAL GENERATORS 47 2007
2008/0177,199 System and Method of Using Thermal and Electrical Conductivity of Tissue 43 2008
 
MICROLINE SURGICAL, INC. (8)
5,836,943 Electrosurgical generator 133 1996
6,238,387 Electrosurgical generator 174 1998
6,241,723 Electrosurgical system 231 1999
6,692,489 Electrosurgical mode conversion system 124 2000
6,602,252 Combined dissecting, cauterizing, and stapling device 594 2002
6,695,837 Power supply for identification and control of electrical surgical tools 74 2002
7,033,351 Power supply for identification and control of electrical surgical tools 55 2003
7,175,621 Electrosurgical mode conversion system 80 2003
 
XO CARE A/S (1)
6,890,331 Electrosurgical apparatus 49 2001
 
ENTEGRIS, INC. (1)
2004/0121,494 Infrared thermopile detector system for semiconductor process monitoring and control 1 2003
 
LEAR AUTOMOTIVE DEARBORN, INC. (1)
5,860,832 Method for connecting flat flexible cable and a connector 50 1997
 
AVENT, INC. (2)
7,163,536 Determining connections of multiple energy sources and energy delivery devices 54 2004
7,294,127 Electrosurgical tissue treatment method 152 2005
 
E.P. Technologies Inc. (2)
5,722,975 Systems for radiofrequency ablation with phase sensitive power detection and control 157 1995
5,853,409 Systems and apparatus for sensing temperature in body tissue 108 1997
 
ENGINEERING & RESEARCH ASSOCIATES, INC. (5)
5,843,075 Probe for thermal ablation 168 1997
5,868,737 Apparatus and method for determining ablation 136 1997
6,039,731 Apparatus and method for determining the extent of ablation 160 1998
6,113,592 Apparatus and method for controlling ablation depth 180 1998
6,322,558 Apparatus and method for predicting ablation depth 161 1999
 
OMEGA ENGINEERING, INC. (1)
6,074,089 Thermoelectric product and method 74 1998
 
Aspen Laboratories, Inc. (2)
4,569,345 High output electrosurgical unit 95 1984
4,848,335 Return electrode contact monitor 124 1988
 
GENERAL ELECTRIC COMPANY (2)
4,559,496 LCD Hook-on digital ammeter 77 1984
5,807,253 Patient electrical isolation system 49 1997
 
Oertli-Instrumente AG (1)
5,346,491 Feed device for bipolar electrodes for capsulotomy 91 1991
 
Burr-Brown Corporation (1)
5,304,917 Compact low noise low power dual mode battery charging circuit 65 1993
 
VALVECURE, INC. (1)
7,229,469 Methods for treating and repairing mitral valve annulus 74 2003
 
STORZ INSTRUMENT COMPANY (3)
5,249,121 Remote control console for surgical control system 191 1989
5,157,603 Control system for ophthalmic surgical instruments 110 1989
5,964,746 Microsurgical system having isolated handpiece detection apparatus 46 1997
 
Storz Endoskop Produktions GmbH (3)
7,203,556 Device for monitoring medical equipment 49 2004
7,238,181 High-frequency surgery generator 43 2004
7,244,255 High-frequency surgical generator 44 2004
 
INTACT MEDICAL CORPORATION (3)
6,740,079 Electrosurgical generator 160 2001
7,004,174 Electrosurgery with infiltration anesthesia 84 2002
6,923,804 Electrosurgical generator 158 2003
 
FLUGSTAD, BENJAMIN A. (1)
6,784,405 Variable frequency automated capacitive radio frequency (RF) dielectric heating system 84 2003
 
STORZ ENDOSKOP GMBH (4)
6,261,285 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 70 1998
6,275,786 Device for monitoring a neutral electrode during HF surgery 98 1999
6,864,686 High-frequency surgical device and operation monitoring device for a high-frequency surgical device 96 2002
7,115,121 Electrosurgical apparatus 50 2003
 
ARTHROCARE CORPORATION (A DELAWARE CORPORATION) (13)
5,843,019 Shaped electrodes and methods for electrosurgical cutting and ablation 314 1996
5,766,153 Methods and apparatus for surgical cutting 326 1996
6,228,078 Methods for electrosurgical dermatological treatment 230 1997
6,557,559 Electrosurgical systems and methods with temperature control 104 1998
6,142,992 Power supply for limiting power in electrosurgery 282 1998
6,235,020 Power supply and methods for fluid delivery in electrosurgery 314 1998
6,296,636 Power supply and methods for limiting power in electrosurgery 298 1999
6,632,193 Systems and methods for electrosurgical tissue treatment 285 2000
6,482,201 Systems and methods for tissue resection, ablation and aspiration 195 2000
6,468,270 System and method for electrosurgical treatment of intervertebral discs 132 2000
6,974,453 Dual mode electrosurgical clamping probe and related methods 170 2001
6,837,888 Electrosurgical probe with movable return electrode and methods related thereto 251 2002
2005/0004,634 Methods for electrosurgical treatment of spinal tissue 149 2004
 
ERICSSON RAYNET (2)
5,694,304 High efficiency resonant switching converters 88 1995
5,712,772 Controller for high efficiency resonant switching converters 133 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 80 2000
6,602,243 Foley catheter having redundant temperature sensors and method 93 2001
6,974,463 System and method for patient temperature control employing temperature projection algorithm 69 2002
 
MAQUET CARDIOVASCULAR LLC (2)
7,192,427 Apparatus and method for assessing transmurality of a tissue ablation 69 2003
2004/0102,772 Apparatus and method for minimally invasive surgery using rotational cutting tool 11 2003
 
RDM International, Inc. (1)
4,644,955 Circuit apparatus and method for electrothermal treatment of cancer eye 93 1985
 
KIMBERLY-CLARK, INC. (1)
7,258,688 Computerized electrical signal generator 81 2002
 
CARL ZEISS SURGICAL GMBH (1)
5,422,926 X-ray source with shaped radiation pattern 174 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, Inc. (1)
* 8,337,428 Zero-crossing receiver for orthopedic parameter sensing 0 2010
* Cited By Examiner

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