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 RHEINFALL689

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 1256
Orszulak, James H Nederland, US 55 4630

Cited Art Landscape

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6494880 Systems and methods for controlling power in an electrosurgical probe 178 2000
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6522931 Therapeutic prostatic thermotherapy 64 2001
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7285117 Medical device control systems 74 2002
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6792390 Systems and methods to identify and disable re-used devices based on detecting environmental changes 135 2003
7416549 Multi-zone bipolar ablation probe assembly 91 2003
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6325799 Electrosurgical instrument 558 1999
6582427 Electrosurgery system 502 2000
6398781 Electrosurgery system 421 2000
6547786 Electrosurgery system and instrument 376 2000
6758846 Electrosurgical instrument and an electrosurgery system including such an instrument 444 2001
6893435 Electrosurgical system 409 2001
6843789 Electrosurgical system 428 2002
6984231 Electrosurgical system 421 2002
RE39358 Electrosurgery system and method 342 2002
6929641 Electrosurgical system 358 2003
6966907 Electrosurgical generator and system 529 2003
7220260 Electrosurgical system 385 2003
7214224 Electrosurgical system 355 2003
7211081 Electrosurgical generator 358 2003
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7195627 Electrosurgical generator 359 2005
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5342356 Electrical coupling unit for electrosurgery 178 1992
 
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5688267 Systems and methods for sensing multiple temperature conditions during tissue ablation 568 1995
5735846 Systems and methods for ablating body tissue using predicted maximum tissue temperature 326 1995
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5769847 Systems and methods for controlling tissue ablation using multiple temperature sensing elements 307 1996
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5702386 Non-linear control systems and methods for heating and ablating body tissue 273 1996
5743903 Cardiac ablation systems and methods using tissue temperature monitoring and control 312 1996
6162184 Systems and methods for sensing temperature within the body 150 1996
5906614 Tissue heating and ablation systems and methods using predicted temperature for monitoring and control 193 1997
5897552 Electrode and associated systems using thermally insulated temperature sensing elements 372 1997
6053912 Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes 240 1997
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6056745 Systems and methods for obtaining desired lesion characteristics while ablating body tissue 201 1997
6293943 Tissue heating and ablation systems and methods which predict maximum tissue temperature 332 1998
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6165169 Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays 234 1999
6245061 Tissue heating and ablation systems and methods using self-heated electrodes 183 1999
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6786905 Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body 313 2002
 
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5772659 Electrosurgical generator power control circuit and method 432 1995
6033399 Electrosurgical generator with adaptive power control 746 1997
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6398779 Vessel sealing system 512 1999
6740079 Electrosurgical generator 224 2001
6796981 Vessel sealing system 439 2002
7083618 Vessel sealer and divider 385 2002
7004174 Electrosurgery with infiltration anesthesia 110 2002
6860881 Multiple RF return pad contact detection system 122 2002
7137980 Method and system for controlling output of RF medical generator 462 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 108 2003
RE40388 Electrosurgical generator with adaptive power control 157 2003
7156846 Vessel sealer and divider for use with small trocars and cannulas 338 2003
7364577 Vessel sealing system 203 2003
6923804 Electrosurgical generator 222 2003
2008/0125,767 Thermocouple Measurement Circuit 87 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 238 2003
7131860 Connector systems for electrosurgical generator 309 2003
7156844 Electrosurgical pencil with improved controls 83 2003
7044948 Circuit for controlling arc energy from an electrosurgical generator 238 2003
7147638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 289 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 264 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 71 2004
7491201 Tissue sealer with non-conductive variable stop members and method of sealing tissue 231 2004
7160293 Multiple RF return pad contact detection system 103 2004
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7303557 Vessel sealing system 341 2004
2005/0203,504 Method and system for controlling output of RF medical generator 264 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 67 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 204 2005
2006/0079,871 Universal foot switch contact port 59 2005
2007/0093,801 Circuit and method for reducing stored energy in an electrosurgical generator 76 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 63 2005
2006/0161,148 Circuit and method for controlling an electrosurgical generator using a full bridge topology 114 2006
7513896 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 69 2006
2007/0173,810 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 57 2006
2006/0178,664 Circuit for controlling arc energy from an electrosurgical generator 60 2006
2007/0208,339 System and method for controlling electrosurgical snares 77 2006
2007/0225,698 System and method for generating radio frequency energy 54 2006
2006/0224,152 Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator 100 2006
2007/0250,052 Arc based adaptive control system for an electrosurgical unit 52 2006
2007/0265,612 System and method for reducing leakage current in an electrosurgical generator 67 2006
2008/0039,831 System and method for measuring initial tissue impedance 96 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 160 2006
7416437 Connector systems for electrosurgical generator 119 2006
2008/0082,094 Transformer for RF voltage sensing 56 2006
2007/0038,209 Method and system for controlling output of RF medical generator 69 2006
2007/0173,805 Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm 152 2007
2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 332 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 73 2007
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2008/0287,791 Switched Resonant Ultrasonic Power Amplifier System 65 2008
2008/0287,838 Switched Resonant Ultrasonic Power Amplifier System 65 2008
2009/0157,071 System and Method for Tissue Sealing 124 2009
2009/0157,072 System and Method for Tissue Sealing 101 2009
2009/0157,075 System and Method for Tissue Sealing 103 2009
2009/0157,073 Dual Synchro-Resonant Electrosurgical Apparatus with Bi-Directional Magnetic Coupling 53 2009
 
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2008/0281,316 Adjustable impedance electrosurgical electrodes 59 2007
2009/0018,536 Measurement and control systems and methods for electrosurgical procedures 72 2007
2009/0024,120 Connection cable and method for activating a voltage-controlled generator 40 2007
2009/0036,883 Electrosurgical systems and printed circuit boards for use therewith 48 2007
2009/0069,801 System and method for transmission of combined data stream 52 2007
2009/0082,765 REAL-TIME ARC CONTROL IN ELECTROSURGICAL GENERATORS 57 2007
2008/0177,199 System and Method of Using Thermal and Electrical Conductivity of Tissue 51 2008
 
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5836943 Electrosurgical generator 204 1996
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6695837 Power supply for identification and control of electrical surgical tools 89 2002
7033351 Power supply for identification and control of electrical surgical tools 69 2003
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5868737 Apparatus and method for determining ablation 156 1997
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5843019 Shaped electrodes and methods for electrosurgical cutting and ablation 384 1996
5766153 Methods and apparatus for surgical cutting 366 1996
6228078 Methods for electrosurgical dermatological treatment 297 1997
6557559 Electrosurgical systems and methods with temperature control 134 1998
6142992 Power supply for limiting power in electrosurgery 350 1998
6235020 Power supply and methods for fluid delivery in electrosurgery 390 1998
6296636 Power supply and methods for limiting power in electrosurgery 377 1999
6632193 Systems and methods for electrosurgical tissue treatment 386 2000
6482201 Systems and methods for tissue resection, ablation and aspiration 249 2000
6468270 System and method for electrosurgical treatment of intervertebral discs 170 2000
6974453 Dual mode electrosurgical clamping probe and related methods 215 2001
6837888 Electrosurgical probe with movable return electrode and methods related thereto 371 2002
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
COVIDIEN AG (4)
8647340 Thermocouple measurement system 0 2012
8485993 Switched resonant ultrasonic power amplifier system 6 2012
8966981 Switched resonant ultrasonic power amplifier system 1 2013
9768373 Switched resonant ultrasonic power amplifier system 0 2015
 
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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