US Patent No: 5,558,671

Number of patents in Portfolio can not be more than 2000

Impedance feedback monitor for electrosurgical instrument

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

An impedance monitoring device is provided for monitoring the electrical impedance of tissue as it is treated with electrosurgical energy. Based on a predicted model of tissue impedance and a number of initial impedance readings, the impedance at which tissue treatment is completed is predicted. More particularly, a minimum impedance level is measured and a function of the minimum impedance is used to determine impedance at which coagulation is completed. A control device is provided for bringing the output of the generator within an optimum range based on a system load curve. In one embodiment the impedance monitoring device is used in conjunction with a bipolar electrosurgical instrument. Preferably, the instrument comprises electrically opposite electrodes located on one or more tissue engaging surfaces for engaging tissue to be treated.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ETHICON ENDO-SURGERY, INC.CINCINNATI, OH1294

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yates, David C West Chester, OH 98 8563

Cited Art

Patent Info (Count) # Cites Year
 
MEDICAL SCIENTIFIC, INC. (4)
5,207,691 Electrosurgical clip applicator 268 1991
5,201,900 Bipolar surgical clip 125 1992
5,335,668 Diagnostic impedance measuring system for an insufflation needle 34 1993
5,417,687 Bipolar electrosurgical trocar 340 1993
 
AMERICAN CARDIAC ABLATION CO., INC. (2)
5,342,357 Fluid cooled electrosurgical cauterization system 511 1992
5,437,662 Fluid cooled electrosurgical cauterization system 293 1994
 
ETHICON, INC. (2)
4,608,981 Surgical stapling instrument with staple height adjusting mechanism 295 1984
5,104,025 Intraluminal anastomotic surgical stapler with detached anvil 300 1990
 
LEIBINGER GMBH (2)
4,474,179 Method and apparatus for the high frequency coagulation of protein for surgical purposes 171 1982
4,685,459 Device for bipolar high-frequency coagulation of biological tissue 232 1986
 
SHERWOOD SERVICES AG (2)
4,416,276 Adaptive, return electrode monitoring system 275 1981
4,658,819 Electrosurgical generator 190 1983
 
ST. PAUL FIRE AND MARINE INSURANCE COMPANY (2)
5,085,659 Biopsy device with bipolar coagulation capability 419 1990
5,057,107 Ablation catheter with selectively deployable electrodes 265 1991
 
AN-CON GENETICS, INC. (1)
5,167,658 Method and apparatus for electrosurgical measurement 119 1991
 
CONMED CORPORATION (1)
5,300,070 Electrosurgical trocar assembly with bi-polar electrode 120 1992
 
HEWLETT-PACKARD COMPANY (1)
4,633,874 Surgical stapling instrument with jaw latching mechanism and disposable staple cartridge 374 1985
 
INTEGRA LIFESCIENCES (IRELAND) LTD. (1)
5,190,517 Electrosurgical and ultrasonic surgical system 411 1991
 
KAMIYAMA, HIROYASU (1)
5,151,102 Blood vessel coagulation/stanching device 365 1990
 
KHARKOVSKY NAUCHNO-ISSLEDOVATELSKY INSTITUT OBSCHEI I NEOTLOZHNOI KHIRURGII, USSR, KHARKOV (1)
4,671,274 Bipolar electrosurgical instrument 269 1985
 
NIPPON SHOJI KAISHA, LTD. (1)
4,494,539 Method and apparatus for surgical operation using microwaves 80 1982
 
OLYMPUS OPTICAL CO., LTD. (1)
5,389,098 Surgical device for stapling and/or fastening body tissues 392 1993
 
OLYMPUS WINTER & IBE GMBH (1)
4,655,216 Combination instrument for laparoscopical tube sterilization 281 1985
 
RICHARD WOLF GMBH (1)
4,985,030 Bipolar coagulation instrument 274 1990
 
SMITHS GROUP PLC (1)
4,961,047 Electrical power control apparatus and methods 80 1989
 
TYCO HEALTHCARE GROUP AG (1)
5,423,809 Electrosurgical control for a trocar 139 1993
 
UNITED STATES SURGICAL CORPORATION (1)
5,429,636 Conductive body tissue penetrating device 51 1993
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
4,651,280 Electrosurgical control system using tissue conductivity 96 1985

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
COVIDIEN AG (116)
6,228,080 Electrosurgical generator with adaptive power control 241 1998
6,398,779 Vessel sealing system 289 1999
7,582,087 Vessel sealing instrument 15 2001
6,796,981 Vessel sealing system 173 2002
7,776,036 Bipolar concentric electrode assembly for soft tissue fusion 8 2003
7,137,980 Method and system for controlling output of RF medical generator 105 2003
7,749,217 Method and system for optically detecting blood and controlling a generator during electrosurgery 14 2003
RE40388 Electrosurgical generator with adaptive power control 40 2003
7,597,693 Vessel sealer and divider for use with small trocars and cannulas 15 2003
7,364,577 Vessel sealing system 49 2003
8,104,956 Thermocouple measurement circuit 1 2003
7,131,860 Connector systems for electrosurgical generator 146 2003
7,044,948 Circuit for controlling arc energy from an electrosurgical generator 142 2003
7,753,909 Electrosurgical instrument which reduces thermal damage to adjacent tissue 8 2004
8,012,150 Method and system for programming and controlling an electrosurgical generator system 7 2004
7,722,601 Method and system for programming and controlling an electrosurgical generator system 13 2004
7,491,201 Tissue sealer with non-conductive variable stop members and method of sealing tissue 100 2004
7,887,535 Vessel sealing wave jaw 4 2004
7,811,283 Open vessel sealing instrument with hourglass cutting mechanism and over-ratchet safety 10 2004
7,396,336 Switched resonant ultrasonic power amplifier system 105 2004
7,510,556 Vessel sealing instrument 67 2004
7,303,557 Vessel sealing system 142 2004
7,901,400 Method and system for controlling output of RF medical generator 11 2005
7,766,905 Method and system for continuity testing of medical electrodes 6 2005
7,780,662 Vessel sealing system using capacitive RF dielectric heating 12 2005
7,491,202 Electrosurgical forceps with slow closure sealing plates and method of sealing tissue 70 2005
7,628,786 Universal foot switch contact port 6 2005
7,837,685 Switch mechanisms for safe activation of energy on an electrosurgical instrument 7 2005
7,708,735 Incorporating rapid cooling in tissue fusion heating processes 8 2005
7,628,791 Single action tissue sealer 16 2005
7,540,872 Articulating bipolar electrosurgical instrument 92 2005
7,955,332 Mechanism for dividing tissue in a hemostat-style instrument 4 2005
7,500,975 Spring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument 73 2005
7,686,827 Magnetic closure mechanism for hemostat 9 2005
7,594,916 Electrosurgical forceps with energy based tissue division 15 2005
7,947,039 Laparoscopic apparatus for performing electrosurgical procedures 3 2005
7,686,804 Vessel sealer and divider with rotating sealer and cutter 13 2006
7,909,823 Open vessel sealing instrument 6 2006
7,513,896 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 29 2006
7,771,425 Vessel sealer and divider having a variable jaw clamping mechanism 11 2006
7,824,400 Circuit for controlling arc energy from an electrosurgical generator 3 2006
7,651,493 System and method for controlling electrosurgical snares 15 2006
7,648,499 System and method for generating radio frequency energy 8 2006
7,651,492 Arc based adaptive control system for an electrosurgical unit 10 2006
7,641,653 Open vessel sealing forceps disposable handswitch 10 2006
7,846,158 Apparatus and method for electrode thermosurgery 5 2006
8,128,624 Electrosurgical instrument that directs energy delivery and protects adjacent tissue 1 2006
7,776,037 System and method for controlling electrode gap during tissue sealing 11 2006
7,744,615 Apparatus and method for transecting tissue on a bipolar vessel sealing instrument 25 2006
8,034,049 System and method for measuring initial tissue impedance 5 2006
7,731,717 System and method for controlling RF output during tissue sealing 15 2006
7,416,437 Connector systems for electrosurgical generator 30 2006
7,637,907 System and method for return electrode monitoring 6 2006
7,922,953 Method for manufacturing an end effector assembly 5 2006
7,794,457 Transformer for RF voltage sensing 3 2006
7,846,161 Insulating boot for electrosurgical forceps 8 2006
7,819,872 Flexible endoscopic catheter with ligasure 7 2006
7,789,878 In-line vessel sealer and divider 11 2006
7,922,718 Open vessel sealing instrument with cutting mechanism 7 2006
8,105,323 Method and system for controlling output of RF medical generator 1 2006
7,879,035 Insulating boot for electrosurgical forceps 5 2006
7,722,607 In-line vessel sealer and divider 13 2006
7,857,812 Vessel sealer and divider having elongated knife stroke and safety for cutting mechanism 7 2006
7,655,007 Method of fusing biomaterials with radiofrequency energy 12 2006
7,927,328 System and method for closed loop monitoring of monopolar electrosurgical apparatus 3 2007
7,935,052 Forceps with spring loaded end effector assembly 5 2007
7,931,649 Vessel sealing instrument with electrical cutting mechanism 10 2007
8,211,105 Electrosurgical instrument which reduces collateral damage to adjacent tissue 1 2007
7,481,810 Bipolar forceps having monopolar extension 77 2007
7,445,621 Bipolar forceps having monopolar extension 70 2007
7,442,194 Bipolar forceps having monopolar extension 71 2007
7,963,965 Bipolar electrosurgical instrument for sealing vessels 3 2007
8,192,433 Vessel sealing instrument with electrical cutting mechanism 1 2007
8,162,940 Vessel sealing instrument with electrical cutting mechanism 1 2007
8,080,008 Method and system for programming and controlling an electrosurgical generator system 1 2007
7,553,312 Vessel sealing instrument 69 2007
7,513,898 Vessel sealing instrument 73 2008
7,828,798 Laparoscopic bipolar electrosurgical instrument 11 2008
8,287,528 Vessel sealing system 0 2008
7,766,693 Connector systems for electrosurgical generator 6 2008
8,113,057 Switched resonant ultrasonic power amplifier system 1 2008
8,096,961 Switched resonant ultrasonic power amplifier system 0 2008
8,123,743 Mechanism for dividing tissue in a hemostat-style instrument 1 2008
8,361,071 Vessel sealing forceps with disposable electrodes 0 2008
8,298,228 Electrosurgical instrument which reduces collateral damage to adjacent tissue 0 2008
7,799,028 Articulating bipolar electrosurgical instrument 11 2008
8,241,284 Vessel sealer and divider with non-conductive stop members 1 2009
8,382,754 Electrosurgical forceps with slow closure sealing plates and method of sealing tissue 0 2009
8,303,586 Spring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument 0 2009
8,216,223 System and method for tissue sealing 1 2009
8,147,485 System and method for tissue sealing 2 2009
8,202,271 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 1 2009
7,896,878 Vessel sealing instrument 5 2009
8,187,262 Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling 0 2009
7,947,041 Vessel sealing instrument 4 2009
7,887,536 Vessel sealing instrument 10 2009
8,277,447 Single action tissue sealer 3 2009
8,025,660 Universal foot switch contact port 3 2009
7,972,332 System and method for controlling electrosurgical snares 3 2009
7,951,150 Vessel sealer and divider with rotating sealer and cutter 6 2010
8,303,580 Method and system for programming and controlling an electrosurgical generator system 0 2010
8,298,223 Method and system for programming and controlling an electrosurgical generator system 0 2010
8,348,948 Vessel sealing system using capacitive RF dielectric heating 0 2010
8,231,616 Transformer for RF voltage sensing 0 2010
8,257,352 Bipolar forceps having monopolar extension 1 2010
8,034,052 Apparatus and method for electrode thermosurgery 0 2010
8,361,072 Insulating boot for electrosurgical forceps 0 2010
8,394,095 Insulating boot for electrosurgical forceps 0 2011
8,147,489 Open vessel sealing instrument 2 2011
8,197,633 Method for manufacturing an end effector assembly 1 2011
8,267,928 System and method for closed loop monitoring of monopolar electrosurgical apparatus 0 2011
8,394,096 Open vessel sealing instrument with cutting mechanism 0 2011
8,241,278 Laparoscopic apparatus for performing electrosurgical procedures 0 2011
8,267,929 Method and system for programming and controlling an electrosurgical generator system 0 2011
8,366,709 Articulating bipolar electrosurgical instrument 0 2011
8,333,765 Vessel sealing instrument with electrical cutting mechanism 0 2012
 
COVIDIEN LP (59)
8,292,888 Bipolar or ultrasonic surgical device 0 2002
8,062,236 Method and system to determine an optimal tissue compression time to implant a surgical element 0 2006
7,717,312 Surgical instruments employing sensors 52 2006
7,464,847 Surgical stapler with timer and feedback display 97 2006
7,461,767 Battery powered surgical instrument 80 2006
7,951,149 Ablative material for use with tissue treatment device 10 2006
7,766,910 Vessel sealer and divider for large tissue structures 19 2006
D574323 Generator 28 2007
D649249 End effectors of an elongated dissecting and dividing instrument 4 2007
8,267,935 Electrosurgical instrument reducing current densities at an insulator conductor junction 0 2007
7,950,560 Powered surgical instrument 35 2007
7,823,760 Powered surgical stapling device platform 3 2007
7,931,660 Powered tacker instrument 2 2007
8,070,746 Radiofrequency fusion of cardiac tissue 2 2007
7,834,484 Connection cable and method for activating a voltage-controlled generator 3 2007
8,216,220 System and method for transmission of combined data stream 0 2007
7,757,925 Battery powered surgical instrument 2 2008
8,226,639 System and method for output control of electrosurgical generator 2 2008
7,870,989 Surgical stapler with timer and feedback display 32 2008
8,257,387 Method of transferring pressure in an articulating surgical instrument 2 2008
8,162,973 Method of transferring pressure in an articulating surgical instrument 5 2008
8,317,787 Tissue fusion jaw angle improvement 0 2008
8,241,282 Vessel sealing cutting assemblies 2 2008
7,648,055 Surgical stapling apparatus with powered articulation 17 2008
8,221,416 Insulating boot for electrosurgical forceps with thermoplastic clevis 1 2008
8,303,582 Electrosurgical instrument having a coated electrode utilizing an atomic layer deposition technique 0 2008
8,241,283 Dual durometer insulating boot for electrosurgical forceps 1 2008
7,877,852 Method of manufacturing an end effector assembly for sealing tissue 4 2008
7,877,853 Method of manufacturing end effector assembly for sealing tissue 7 2008
8,267,936 Insulating mechanically-interfaced adhesive for electrosurgical forceps 1 2008
8,251,996 Insulating sheath for electrosurgical forceps 1 2008
8,235,992 Insulating boot with mechanical reinforcement for electrosurgical forceps 1 2008
8,236,025 Silicone insulated electrosurgical forceps 1 2008
8,235,993 Insulating boot for electrosurgical forceps with exohinged structure 1 2008
8,142,473 Method of transferring rotational motion in an articulating surgical instrument 7 2008
7,909,221 Battery powered surgical instrument 37 2008
8,016,827 Apparatus, system, and method for performing an electrosurgical procedure 8 2008
7,922,063 Powered surgical instrument 36 2008
8,197,479 Vessel sealer and divider 4 2008
8,257,349 Electrosurgical apparatus with predictive RF source control 0 2009
8,298,232 Endoscopic vessel sealer and divider for large tissue structures 0 2009
8,226,650 Apparatus, system, and method for performing an endoscopic electrosurgical procedure 4 2009
8,357,158 Jaw closure detection system 0 2009
7,845,534 Surgical stapler with timer and feedback display 34 2009
8,006,887 Surgical stapling apparatus with powered articulation 3 2010
8,002,795 Surgical instruments employing sensors 37 2010
8,052,024 Surgical stapler with timer and feedback display 1 2010
8,132,705 Surgical stapler with timer and feedback display 0 2010
8,267,924 Powered surgical instrument 0 2011
8,201,721 Powered surgical instrument 0 2011
8,348,125 Battery powered surgical instrument 0 2011
8,328,823 Powered tacker instrument 0 2011
8,092,493 Surgical stapling apparatus with powered articulation 2 2011
8,181,839 Surgical instruments employing sensors 0 2011
8,157,150 Surgical stapler with timer and feedback display 0 2011
8,425,504 Radiofrequency fusion of cardiac tissue 0 2011
8,240,537 Surgical stapling apparatus with powered articulation 1 2011
8,353,905 System and method for transmission of combined data stream 0 2012
8,419,768 Surgical stapling apparatus with powered articulation 0 2012
 
MEDTRONIC, INC. (53)
7,967,816 Fluid-assisted electrosurgical instrument with shapeable electrode 1 2002
6,849,073 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 173 2002
6,663,627 Ablation system and method of use 97 2002
6,648,883 Ablation system and method of use 142 2002
7,507,235 Method and system for organ positioning and stabilization 6 2002
6,755,827 Tissue sealing electrosurgery device and methods of sealing tissue 70 2002
6,776,780 Tissue sealing electrosurgery device and methods of sealing tissue 192 2002
7,118,566 Device and method for needle-less interstitial injection of fluid for ablation of cardiac tissue 18 2003
6,989,010 Ablation system and method of use 49 2003
7,497,857 Endocardial dispersive electrode for use with a monopolar RF ablation pen 1 2003
7,615,015 Focused ultrasound ablation devices having selectively actuatable emitting elements and methods of using the same 6 2003
7,083,620 Electrosurgical hemostat 102 2003
7,367,972 Ablation system 52 2003
7,347,858 Method and system for treatment of atrial tachyarrhythmias 1 2003
7,029,470 Ablation system and method of use 12 2003
7,169,144 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 78 2003
8,162,933 Vibration sensitive ablation device and method 0 2004
8,333,764 Device and method for determining tissue thickness and creating cardiac ablation lesions 0 2004
7,247,155 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue 92 2004
7,470,272 Device and method for ablating tissue 30 2004
7,250,048 Ablation system and method of use 51 2004
7,628,780 Devices and methods for interstitial injection of biologic agents into tissue 1 2004
7,364,578 System and method of performing an electrosurgical procedure 41 2004
7,963,963 Electrosurgical hemostat 6 2005
7,435,250 Method and apparatus for tissue ablation 4 2005
7,706,894 Heart wall ablation/mapping catheter and method 3 2005
7,706,882 Methods of using high intensity focused ultrasound to form an ablated tissue area 0 2005
7,758,576 Clamping ablation tool and method 1 2005
7,758,580 Compound bipolar ablation device and method 0 2005
7,678,108 Loop ablation apparatus and method 0 2005
7,566,334 Ablation device with jaws 25 2005
7,740,623 Devices and methods for interstitial injection of biologic agents into tissue 2 2005
7,309,325 Helical needle apparatus for creating a virtual electrode used for the ablation of tissue 26 2005
7,818,039 Suction stabilized epicardial ablation devices 0 2005
7,156,845 Method and apparatus for creating a bi-polar virtual electrode used for the ablation of tissue 35 2005
7,166,105 Pen-type electrosurgical instrument 33 2005
7,678,111 Device and method for ablating tissue 9 2005
8,221,402 Method for guiding a medical device 0 2005
7,824,399 Ablation system and method of use 0 2006
7,975,703 Device and method for needle-less interstitial injection of fluid for ablation of cardiac tissue 1 2006
7,744,562 Devices and methods for interstitial injection of biologic agents into tissue 0 2006
8,414,573 Device and method for ablation of cardiac tissue 0 2006
7,422,588 Pen-type electrosurgical instrument 2 2006
7,896,871 Impedance computation for ablation therapy 0 2007
7,959,626 Transmural ablation systems and methods 19 2007
7,699,805 Helical coil apparatus for ablation of tissue 4 2007
7,794,460 Method of ablating tissue 0 2008
7,871,409 Endocardial dispersive electrode for use with a monopolar RF ablation pen 0 2009
7,875,028 Ablation device with jaws 0 2009
8,409,219 Method and system for placement of electrical lead inside heart 0 2009
8,273,072 Devices and methods for interstitial injection of biologic agents into tissue 0 2009
8,172,837 Clamping ablation tool and method 0 2010
8,162,941 Ablation device with jaws 0 2010
 
GYRUS MEDICAL LIMITED (20)
6,293,942 Electrosurgical generator method 211 1996
6,015,406 Electrosurgical instrument 194 1996
6,004,319 Electrosurgical instrument 228 1996
6,027,501 Electrosurgical instrument 203 1996
6,013,076 Electrosurgical instrument 145 1996
5,944,715 Electrosurgical instrument 236 1996
6,093,186 Electrosurgical generator and system 225 1997
6,416,509 Electrosurgical generator and system 192 1998
6,090,106 Electrosurgical instrument 162 1998
6,056,746 Electrosurgical instrument 237 1998
6,364,877 Electrosurgical generator and system 153 1998
6,306,134 Electrosurgical generator and system 214 1998
6,261,286 Electrosurgical generator and system 185 1998
6,210,405 Under water treatment 51 1998
6,277,114 Electrode assembly for an electrosurical instrument 45 1999
6,174,308 Electrosurgical instrument 50 1999
6,234,178 Electrosurgical instrument 83 1999
6,780,180 Electrosurgical instrument 110 2000
6,565,561 Electrosurgical instrument 17 2000
6,482,202 Under water treatment 44 2001
 
ETHICON ENDO-SURGERY, INC. (19)
5,707,369 Temperature feedback monitor for hemostatic surgical instrument 327 1995
6,352,532 Active load control of ultrasonic surgical instruments 72 1999
8,186,555 Motor-driven surgical cutting and fastening instrument with mechanical closure system 2 2006
8,365,976 Surgical staples having dissolvable, bioabsorbable or biofragmentable portions and stapling instruments for deploying the same 0 2006
8,360,297 Surgical cutting and stapling instrument with self adjusting anvil 0 2006
8,348,131 Surgical stapling instrument with mechanical indicator to show levels of tissue compression 0 2006
8,317,070 Surgical stapling devices that produce formed staples having different lengths 0 2007
8,161,977 Accessing data stored in a memory of a surgical instrument 5 2008
8,397,971 Sterilizable surgical instrument 0 2009
8,186,560 Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features 3 2009
8,414,577 Surgical instruments and components for use in sterile environments 0 2009
8,196,795 Disposable motor-driven loading unit for use with a surgical cutting and stapling apparatus 2 2010
8,424,740 Surgical instrument having a directional switching mechanism 0 2010
8,167,185 Surgical instrument having recording capabilities 5 2010
8,196,796 Shaft based rotary drive system for surgical instruments 4 2011
8,172,124 Surgical instrument having recording capabilities 6 2011
8,157,153 Surgical instrument with force-feedback capabilities 6 2011
8,113,410 Surgical stapling apparatus with control features 8 2011
8,292,155 Motor-driven surgical cutting and fastening instrument with tactile position feedback 3 2011
 
SALIENT SURGICAL TECHNOLOGIES, INC. (13)
6,702,810 Fluid delivery system and controller for electrosurgical devices 140 2001
7,115,139 Fluid-assisted medical devices, fluid delivery systems and controllers for such devices, and methods 35 2001
7,651,494 Fluid-assisted medical device 11 2003
8,048,070 Fluid-assisted medical devices, systems and methods 0 2003
7,815,634 Fluid delivery system and controller for electrosurgical devices 1 2003
7,951,148 Electrosurgical device having a tissue reduction sensor 0 2004
7,998,140 Fluid-assisted medical devices, systems and methods 1 2004
7,604,635 Fluid-assisted medical devices, systems and methods 1 2004
7,727,232 Fluid-assisted medical devices and methods 1 2005
8,038,670 Fluid-assisted medical devices, systems and methods 2 2005
7,645,277 Fluid-assisted medical device 7 2005
8,075,557 Fluid-assisted medical devices and methods 0 2007
7,537,595 Fluid-assisted medical devices, systems and methods 4 2007
 
AESCULAP AG (7)
6,123,701 Methods and systems for organ resection 164 1998
7,641,651 Devices and methods for mobilization of the uterus 2 2005
7,803,156 Method and apparatus for surgical electrocautery 1 2006
7,942,874 Apparatus for tissue cauterization 3 2006
7,862,565 Method for tissue cauterization 4 2006
7,794,461 Method and apparatus for surgical electrocautery 3 2009
8,419,727 Impedance mediated power delivery for electrosurgery 0 2010
 
OLYMPUS OPTICAL CO., LTD. (5)
5,931,836 Electrosurgery apparatus and medical apparatus combined with the same 117 1997
6,306,131 Electric medical apparatus 59 1999
6,436,096 Electrosurgical apparatus with stable coagulation 59 1999
6,635,057 Electric operation apparatus 53 2000
6,511,476 Electrosurgical apparatus with stable coagulation 59 2001
 
ATRICURE, INC. (4)
7,828,795 Surgical ablation and pacing device 1 2006
8,034,051 Ablation device with sensor 0 2006
8,057,471 Surgical ablation and pacing device 0 2010
8,348,939 Ablation device with sensor 0 2011
 
CONMED CORPORATION (4)
6,253,103 Method and apparatus for high current electrode, transthoracic and transmyocardial impedance estimation 14 1999
7,678,105 Method and apparatus for precursively controlling energy during coaptive tissue fusion 5 2005
7,972,334 Coaptive tissue fusion method and apparatus with energy derivative precursive energy termination control 0 2007
7,972,335 Coaptive tissue fusion method and apparatus with current derivative precursive energy termination control 0 2007
 
PERFECT SURGICAL TECHNIQUES, INC. (4)
6,030,384 Bipolar surgical instruments having focused electrical fields 164 1998
6,162,220 Bipolar surgical instruments having focused electrical fields 213 1999
6,682,527 Method and system for heating tissue with a bipolar instrument 184 2001
6,514,252 Bipolar surgical instruments having focused electrical fields 114 2001
 
RJF HOLDINGS II, INC. (4)
6,479,785 Device for plasma incision of mater with a specifically tuned radiofrequencty electromagnetic field generator 14 1998
6,787,730 Device for plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator 12 2001
6,867,387 Device for plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator 3 2003
7,173,211 Device for plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator 1 2005
 
SENORX, INC. (3)
8,133,218 Electrosurgical medical system and method 0 2005
8,231,615 Electrosurgical medical system and method 0 2008
7,976,540 Electrosurgical medical system and method 1 2008
 
SMITH & NEPHEW, INC. (3)
7,655,003 Electrosurgical power control 8 2005
8,052,675 Electrosurgical power control 1 2010
8,348,934 Electrosurgical power control 0 2011
 
TYCO HEALTHCARE GROUP AG (3)
7,300,435 Automatic control system for an electrosurgical generator 148 2003
7,255,694 Variable output crest factor electrosurgical generator 41 2003
7,458,972 Electrosurgical electrode having a non-conductive porous ceramic coating 68 2007
 
COAPTUS MEDICAL CORPORATION (2)
8,308,763 Systems and methods for transeptal cardiac procedures, including separable guidewires 0 2008
8,235,986 Systems and methods for transeptal cardiac procedures, including tissue penetrating members and associated methods 0 2008
 
ENCISION, INC. (2)
8,007,494 Device and method to prevent surgical burns 0 2007
8,251,989 Combined bipolar and monopolar electrosurgical instrument and method 0 2007
 
MEDTRONIC ADVANCED ENERGY LLC (2)
7,811,282 Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof 7 2005
8,361,068 Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof 0 2010
 
SHERWOOD SERVICES AG (2)
6,932,810 Apparatus and method for sealing and cutting tissue 161 2001
7,270,660 Apparatus and method for sealing and cutting tissue 102 2005
 
BROWN, TONY R. (1)
6,071,303 Device for the treatment of infarcted tissue and method of treating infarcted tissue 94 1996
 
CARDIOTRONICS, INC. (1)
6,016,445 Method and apparatus for electrode and transthoracic impedance estimation 28 1996
 
CONSORTIUM MANAGEMENT SERVICES GROUP, INC. (1)
6,562,037 Bonding of soft biological tissues by passing high frequency electric current therethrough 233 1998
 
COVIDEN IP (1)
D680220 Slider handle for laparoscopic device 0 2012
 
INTEGRA ME GMBH (1)
5,976,128 Electrosurgical high frequency generator 110 1997
 
INTUITIVE SURGICAL OPERATIONS, INC. (1)
6,086,586 Bipolar tissue grasping apparatus and tissue welding method 289 1998
 
LAUFER, MICHAEL D. (1)
7,039,469 Device for shaping infarcted heart tissue and method of using the device 1 2003
 
LIVE TISSUE CONNECT, INC. (1)
7,025,764 Bonding of soft biological tissues by passing high frequency electric current therethrough 36 2002
 
LIVO TISSUE CONNECT, INC. (1)
7,431,721 Bonding of soft biological tissues by passing high frequency electric current therethrough 11 2005
 
MEDICOR CORPORATION (1)
5,947,996 Yoke for surgical instrument 15 1997
 
MEDTRONIC VIDAMED, INC. (1)
6,855,141 Method for monitoring impedance to control power and apparatus utilizing same 61 2002
 
OLYMPUS CORPORATION (1)
7,001,381 Electric operation apparatus 102 2003
 
RJF HOLDINGS I, INC. (1)
5,958,266 Method of plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator 19 1997
 
ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC. (1)
7,387,126 Surgical system and procedure for treatment of medically refractory atrial fibrillation 12 2002
 
STRYKER NV OPERATIONS LIMITED (1)
6,019,757 Endoluminal electro-occlusion detection apparatus and method 76 1995
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
5,743,905 Partially insulated occlusion device 105 1996
 
TYCO HEALTHCARE GROUP LP (1)
7,972,328 System and method for tissue sealing 7 2007
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (5)
6,162,216 Method for biopsy and ablation of tumor cells 62 1998
7,128,740 Method for interrupting conduction paths within the heart 5 2003
8,285,393 Device for shaping infarcted heart tissue and method of using the device 0 2005
8,088,126 Method and apparatus for plasma incision of cardiovascular tissue 0 2007
8,137,341 Methods and apparatus for plasma incision of tissue 0 2011