Switched resonant ultrasonic power amplifier system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8096961
APP PUB NO 20080287838A1
SERIAL NO

12163408

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ATTORNEY / AGENT: (SPONSORED)

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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 RHEINFALL685

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McPherson, James W Boulder, US 29 1102
Orszulak, James H Nederland, US 55 4080

Cited Art Landscape

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6494880 Systems and methods for controlling power in an electrosurgical probe 170 2000
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6522931 Therapeutic prostatic thermotherapy 63 2001
6578579 Systems and methods for preventing automatic identification of re-used single use devices 198 2001
6685703 Generator and probe adapter 116 2001
6685700 Method and system for heating solid tissue 136 2001
6790206 Compensation for power variation along patient cables 141 2002
7285117 Medical device control systems 72 2002
7357800 Power supply and control apparatus and electrophysiology systems including the same 52 2003
6792390 Systems and methods to identify and disable re-used devices based on detecting environmental changes 113 2003
7416549 Multi-zone bipolar ablation probe assembly 87 2003
6958064 Systems and methods for performing simultaneous ablation 69 2003
7001379 Method and system for heating solid tissue 104 2004
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6293942 Electrosurgical generator method 555 1996
6074386 Electrosurgical instrument and an electrosurgical electrode assembly 699 1997
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6416509 Electrosurgical generator and system 495 1998
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6228081 Electrosurgery system and method 458 1999
6325799 Electrosurgical instrument 461 1999
6582427 Electrosurgery system 421 2000
6398781 Electrosurgery system 354 2000
6547786 Electrosurgery system and instrument 311 2000
6758846 Electrosurgical instrument and an electrosurgery system including such an instrument 376 2001
6893435 Electrosurgical system 342 2001
6843789 Electrosurgical system 363 2002
6984231 Electrosurgical system 352 2002
RE39358 Electrosurgery system and method 275 2002
6929641 Electrosurgical system 293 2003
6966907 Electrosurgical generator and system 463 2003
7220260 Electrosurgical system 319 2003
7214224 Electrosurgical system 289 2003
7211081 Electrosurgical generator 293 2003
7282048 Electrosurgical generator and system 330 2004
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7153300 Electrosurgical system 277 2005
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5588432 Catheters for imaging, sensing electrical potentials, and ablating tissue 869 1995
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4429694 Electrosurgical generator 137 1981
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5290283 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage 74 1991
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4862889 Monitoring circuit for an RF surgical apparatus 161 1989
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5342356 Electrical coupling unit for electrosurgery 176 1992
 
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5196009 Non-sticking electrosurgical device having nickel tips 276 1991
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5423808 Systems and methods for radiofrequency ablation with phase sensitive power detection 403 1993
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5688267 Systems and methods for sensing multiple temperature conditions during tissue ablation 549 1995
5735846 Systems and methods for ablating body tissue using predicted maximum tissue temperature 302 1995
6022346 Tissue heating and ablation systems and methods using self-heated electrodes 82 1995
5769847 Systems and methods for controlling tissue ablation using multiple temperature sensing elements 286 1996
5755715 Tissue heating and ablation systems and methods using time-variable set point temperature curves for monitoring and control 244 1996
5702386 Non-linear control systems and methods for heating and ablating body tissue 256 1996
5743903 Cardiac ablation systems and methods using tissue temperature monitoring and control 295 1996
6162184 Systems and methods for sensing temperature within the body 136 1996
5906614 Tissue heating and ablation systems and methods using predicted temperature for monitoring and control 175 1997
5897552 Electrode and associated systems using thermally insulated temperature sensing elements 295 1997
6053912 Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes 232 1997
6113591 Systems and methods for sensing sub-surface temperatures in body tissue 114 1997
6056745 Systems and methods for obtaining desired lesion characteristics while ablating body tissue 195 1997
6293943 Tissue heating and ablation systems and methods which predict maximum tissue temperature 312 1998
6014581 Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure 263 1998
6165169 Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays 212 1999
6245061 Tissue heating and ablation systems and methods using self-heated electrodes 176 1999
6652513 Tissue heating and ablation systems and methods which predict maximum tissue temperature 175 2001
6786905 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body 304 2002
 
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5772659 Electrosurgical generator power control circuit and method 352 1995
6033399 Electrosurgical generator with adaptive power control 656 1997
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6398779 Vessel sealing system 485 1999
6740079 Electrosurgical generator 206 2001
6796981 Vessel sealing system 402 2002
7083618 Vessel sealer and divider 356 2002
7004174 Electrosurgery with infiltration anesthesia 107 2002
6860881 Multiple RF return pad contact detection system 121 2002
7137980 Method and system for controlling output of RF medical generator 376 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 105 2003
RE40388 Electrosurgical generator with adaptive power control 135 2003
7156846 Vessel sealer and divider for use with small trocars and cannulas 314 2003
7364577 Vessel sealing system 179 2003
6923804 Electrosurgical generator 206 2003
2008/0125,767 Thermocouple Measurement Circuit 85 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 236 2003
7131860 Connector systems for electrosurgical generator 292 2003
7156844 Electrosurgical pencil with improved controls 78 2003
7044948 Circuit for controlling arc energy from an electrosurgical generator 235 2003
7147638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 281 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 261 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 69 2004
7491201 Tissue sealer with non-conductive variable stop members and method of sealing tissue 220 2004
7160293 Multiple RF return pad contact detection system 102 2004
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7303557 Vessel sealing system 316 2004
2005/0203,504 Method and system for controlling output of RF medical generator 257 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 65 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 201 2005
2006/0079,871 Universal foot switch contact port 58 2005
2007/0093,801 Circuit and method for reducing stored energy in an electrosurgical generator 75 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 59 2005
2006/0161,148 Circuit and method for controlling an electrosurgical generator using a full bridge topology 109 2006
7513896 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 68 2006
2007/0173,810 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 55 2006
2006/0178,664 Circuit for controlling arc energy from an electrosurgical generator 59 2006
2007/0208,339 System and method for controlling electrosurgical snares 74 2006
2007/0225,698 System and method for generating radio frequency energy 52 2006
2006/0224,152 Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator 98 2006
2007/0250,052 Arc based adaptive control system for an electrosurgical unit 51 2006
2007/0265,612 System and method for reducing leakage current in an electrosurgical generator 66 2006
2008/0039,831 System and method for measuring initial tissue impedance 94 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 155 2006
7416437 Connector systems for electrosurgical generator 105 2006
2008/0082,094 Transformer for RF voltage sensing 54 2006
2007/0038,209 Method and system for controlling output of RF medical generator 68 2006
2007/0173,805 Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm 141 2007
2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 269 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 72 2007
2008/0248,685 Connector Systems for Electrosurgical Generator 37 2008
2008/0287,791 Switched Resonant Ultrasonic Power Amplifier System 54 2008
2008/0287,838 Switched Resonant Ultrasonic Power Amplifier System 54 2008
2009/0157,071 System and Method for Tissue Sealing 118 2009
2009/0157,072 System and Method for Tissue Sealing 96 2009
2009/0157,075 System and Method for Tissue Sealing 98 2009
2009/0157,073 Dual Synchro-Resonant Electrosurgical Apparatus with Bi-Directional Magnetic Coupling 52 2009
 
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2008/0281,316 Adjustable impedance electrosurgical electrodes 56 2007
2009/0018,536 Measurement and control systems and methods for electrosurgical procedures 71 2007
2009/0024,120 Connection cable and method for activating a voltage-controlled generator 39 2007
2009/0036,883 Electrosurgical systems and printed circuit boards for use therewith 47 2007
2009/0069,801 System and method for transmission of combined data stream 51 2007
2009/0082,765 REAL-TIME ARC CONTROL IN ELECTROSURGICAL GENERATORS 56 2007
2008/0177,199 System and Method of Using Thermal and Electrical Conductivity of Tissue 50 2008
 
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5836943 Electrosurgical generator 191 1996
6238387 Electrosurgical generator 238 1998
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6692489 Electrosurgical mode conversion system 147 2000
6602252 Combined dissecting, cauterizing, and stapling device 848 2002
6695837 Power supply for identification and control of electrical surgical tools 88 2002
7033351 Power supply for identification and control of electrical surgical tools 67 2003
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5868737 Apparatus and method for determining ablation 154 1997
6039731 Apparatus and method for determining the extent of ablation 196 1998
6113592 Apparatus and method for controlling ablation depth 212 1998
6322558 Apparatus and method for predicting ablation depth 237 1999
 
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7203556 Device for monitoring medical equipment 62 2004
7238181 High-frequency surgery generator 51 2004
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6784405 Variable frequency automated capacitive radio frequency (RF) dielectric heating system 113 2003
 
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5843019 Shaped electrodes and methods for electrosurgical cutting and ablation 372 1996
5766153 Methods and apparatus for surgical cutting 358 1996
6228078 Methods for electrosurgical dermatological treatment 285 1997
6557559 Electrosurgical systems and methods with temperature control 128 1998
6142992 Power supply for limiting power in electrosurgery 341 1998
6235020 Power supply and methods for fluid delivery in electrosurgery 377 1998
6296636 Power supply and methods for limiting power in electrosurgery 361 1999
6632193 Systems and methods for electrosurgical tissue treatment 365 2000
6482201 Systems and methods for tissue resection, ablation and aspiration 239 2000
6468270 System and method for electrosurgical treatment of intervertebral discs 164 2000
6974453 Dual mode electrosurgical clamping probe and related methods 207 2001
6837888 Electrosurgical probe with movable return electrode and methods related thereto 348 2002
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
COVIDIEN AG (3)
8647340 Thermocouple measurement system 0 2012
8485993 Switched resonant ultrasonic power amplifier system 3 2012
8966981 Switched resonant ultrasonic power amplifier system 0 2013
 
COVIDIEN LP (5)
8486061 Imaginary impedance process monitoring and intelligent shut-off 2 2012
9106270 Transmitting data across a patient isolation barrier using an electric-field capacitive coupler module 0 2013
9504516 Gain compensation for a full bridge inverter 0 2014
9655670 Systems and methods for measuring tissue impedance through an electrosurgical cable 0 2014
9636165 Systems and methods for measuring tissue impedance through an electrosurgical cable 0 2014
* Cited By Examiner

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