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 RHEINFALL683

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McPherson, James W Boulder, US 29 1066
Orszulak, James H Nederland, US 55 3901

Cited Art Landscape

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6843789 Electrosurgical system 349 2002
6984231 Electrosurgical system 339 2002
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6929641 Electrosurgical system 280 2003
6966907 Electrosurgical generator and system 448 2003
7220260 Electrosurgical system 306 2003
7214224 Electrosurgical system 276 2003
7211081 Electrosurgical generator 281 2003
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5743903 Cardiac ablation systems and methods using tissue temperature monitoring and control 286 1996
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6398779 Vessel sealing system 477 1999
6740079 Electrosurgical generator 198 2001
6796981 Vessel sealing system 391 2002
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7004174 Electrosurgery with infiltration anesthesia 103 2002
6860881 Multiple RF return pad contact detection system 118 2002
7137980 Method and system for controlling output of RF medical generator 359 2003
2006/0025,760 Blood detector for controlling anesu and method therefor 103 2003
RE40388 Electrosurgical generator with adaptive power control 129 2003
7156846 Vessel sealer and divider for use with small trocars and cannulas 306 2003
7364577 Vessel sealing system 170 2003
6923804 Electrosurgical generator 200 2003
2008/0125,767 Thermocouple Measurement Circuit 83 2003
2004/0143,263 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion 233 2003
7131860 Connector systems for electrosurgical generator 284 2003
7156844 Electrosurgical pencil with improved controls 75 2003
7044948 Circuit for controlling arc energy from an electrosurgical generator 231 2003
7147638 Electrosurgical instrument which reduces thermal damage to adjacent tissue 275 2004
2005/0004,564 Method and system for programming and controlling an electrosurgical generator system 259 2004
2007/0093,800 Method and system for programming and controlling an electrosurgical generator system 68 2004
7491201 Tissue sealer with non-conductive variable stop members and method of sealing tissue 216 2004
7160293 Multiple RF return pad contact detection system 99 2004
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7303557 Vessel sealing system 308 2004
2005/0203,504 Method and system for controlling output of RF medical generator 255 2005
2005/0182,398 Method and system for continuity testing of medical electrodes 64 2005
2005/0197,659 Vessel sealing system using capacitive RF dielectric heating 200 2005
2006/0079,871 Universal foot switch contact port 57 2005
2007/0093,801 Circuit and method for reducing stored energy in an electrosurgical generator 72 2005
2007/0135,812 Laparoscopic apparatus for performing electrosurgical procedures 58 2005
2006/0161,148 Circuit and method for controlling an electrosurgical generator using a full bridge topology 106 2006
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2006/0178,664 Circuit for controlling arc energy from an electrosurgical generator 58 2006
2007/0208,339 System and method for controlling electrosurgical snares 73 2006
2007/0225,698 System and method for generating radio frequency energy 51 2006
2006/0224,152 Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator 95 2006
2007/0250,052 Arc based adaptive control system for an electrosurgical unit 50 2006
2007/0265,612 System and method for reducing leakage current in an electrosurgical generator 63 2006
2008/0039,831 System and method for measuring initial tissue impedance 92 2006
2008/0039,836 System and method for controlling RF output during tissue sealing 153 2006
7416437 Connector systems for electrosurgical generator 99 2006
2008/0082,094 Transformer for RF voltage sensing 53 2006
2007/0038,209 Method and system for controlling output of RF medical generator 66 2006
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2007/0173,806 System and method for closed loop monitoring of monopolar electrosurgical apparatus 259 2007
2008/0015,564 Method and system for programming and controlling an electrosurgical generator system 71 2007
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2008/0287,838 Switched Resonant Ultrasonic Power Amplifier System 53 2008
2009/0157,071 System and Method for Tissue Sealing 113 2009
2009/0157,072 System and Method for Tissue Sealing 94 2009
2009/0157,075 System and Method for Tissue Sealing 96 2009
2009/0157,073 Dual Synchro-Resonant Electrosurgical Apparatus with Bi-Directional Magnetic Coupling 51 2009
 
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2009/0036,883 Electrosurgical systems and printed circuit boards for use therewith 46 2007
2009/0069,801 System and method for transmission of combined data stream 50 2007
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2008/0177,199 System and Method of Using Thermal and Electrical Conductivity of Tissue 47 2008
 
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5843019 Shaped electrodes and methods for electrosurgical cutting and ablation 367 1996
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6228078 Methods for electrosurgical dermatological treatment 277 1997
6557559 Electrosurgical systems and methods with temperature control 123 1998
6142992 Power supply for limiting power in electrosurgery 335 1998
6235020 Power supply and methods for fluid delivery in electrosurgery 370 1998
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6632193 Systems and methods for electrosurgical tissue treatment 357 2000
6482201 Systems and methods for tissue resection, ablation and aspiration 234 2000
6468270 System and method for electrosurgical treatment of intervertebral discs 160 2000
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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 1 2012
8966981 Switched resonant ultrasonic power amplifier system 0 2013
 
COVIDIEN LP (3)
8486061 Imaginary impedance process monitoring and intelligent shut-off 0 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
* Cited By Examiner

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