US Patent No: 5,540,684
Number of patents in Portfolio can not be more than 2000
Method and apparatus for electrosurgically treating tissue
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Jul 30, 1996
Issued date -
Jul 28, 1994
filing date -
08/282,522
serial no -
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Abstract
Tissue impedance or tissue impedance in combination with tissue temperature is used to control electrosurgical tissue treatment. Tissue impedance alone provides better control of electrosurgical treatment by determining an initial maximum tissue impedance, a minimum tissue impedance selecting a point between the maximum and minimum impedances, preferably the average, as an impedance threshold, and turning off rf power to the electrosurgical instrument when the impedance reaches the threshold as it rises from the minimum. Control may also be by the combination of tissue impedance and temperature. Temperature is controlled to maintain a selected preferred temperature and a maximum temperature is also selected so that if the tissue reaches the maximum temperature, power is turned off. Impedance control is combined with temperature control so that the temperature of the instrument is maintained at a selected preferred temperature unless a maximum temperature is exceeded, which normally will not happen. The impedance is also monitored with maximum and minimum values being determined as well as a threshold impedance between the max and the min. When the threshold, preferably the average impedance, is reached, power is removed from the instrument.
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First Claim
Related Publications
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | Total Patents |
|---|---|---|
| ETHICON ENDO-SURGERY, INC. | CINCINNATI, OH | 1294 |
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Hassler, Jr William L | Cincinnati, OH | 16 | 789 |
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,342,357 Fluid cooled electrosurgical cauterization system | 510 | 1992 | |
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| 5,122,137 Temperature controlled RF coagulation | 504 | 1990 | |
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| 5,403,312 Electrosurgical hemostatic device | 736 | 1993 | |
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| 4,938,761 Bipolar electrosurgical forceps | 271 | 1990 | |
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| 4,658,819 Electrosurgical generator | 190 | 1983 | |
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| 4,903,696 Electrosurgical generator | 124 | 1988 | |
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| 5,057,099 Method for laser surgery | 34 | 1990 | |
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| 4,651,280 Electrosurgical control system using tissue conductivity | 96 | 1985 | |
Patent Citation Ranking
Forward Cites
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,033,399 Electrosurgical generator with adaptive power control | 275 | 1997 | |
| 6,187,003 Bipolar electrosurgical instrument for sealing vessels | 217 | 1997 | |
| 6,050,996 Bipolar electrosurgical instrument with replaceable electrodes | 224 | 1997 | |
| 6,228,083 Laparoscopic bipolar electrosurgical instrument | 164 | 1997 | |
| 6,277,117 Open vessel sealing forceps with disposable electrodes | 230 | 1998 | |
| 6,228,080 Electrosurgical generator with adaptive power control | 241 | 1998 | |
| 6,398,779 Vessel sealing system | 289 | 1999 | |
| 6,511,480 Open vessel sealing forceps with disposable electrodes | 188 | 1999 | |
| 6,451,018 Laparoscopic bipolar electrosurgical instrument | 177 | 2000 | |
| 6,585,735 Endoscopic bipolar electrosurgical forceps | 177 | 2000 | |
| 6,458,130 Endoscopic bipolar electrosurgical forceps | 241 | 2001 | |
| 7,582,087 Vessel sealing instrument | 14 | 2001 | |
| 7,118,570 Vessel sealing forceps with disposable electrodes | 119 | 2001 | |
| 6,796,981 Vessel sealing system | 173 | 2002 | |
| 7,103,947 Molded insulating hinge for bipolar instruments | 116 | 2002 | |
| 7,083,618 Vessel sealer and divider | 173 | 2002 | |
| 7,182,604 Return pad cable connector | 20 | 2002 | |
| 7,101,371 Vessel sealer and divider | 158 | 2002 | |
| 6,960,210 Laparoscopic bipolar electrosurgical instrument | 130 | 2002 | |
| 6,682,528 Endoscopic bipolar electrosurgical forceps | 215 | 2002 | |
| 7,267,677 Vessel sealing instrument | 110 | 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 | 14 | 2003 | |
| 7,156,846 Vessel sealer and divider for use with small trocars and cannulas | 144 | 2003 | |
| 7,364,577 Vessel sealing system | 48 | 2003 | |
| 8,104,956 Thermocouple measurement circuit | 1 | 2003 | |
| 7,799,026 Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion | 12 | 2003 | |
| 7,442,193 Electrically conductive/insulative over-shoe for tissue fusion | 65 | 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 | |
| 7,179,258 Bipolar electrosurgical instrument for sealing vessels | 113 | 2004 | |
| 7,160,299 Method of fusing biomaterials with radiofrequency energy | 148 | 2004 | |
| 7,753,909 Electrosurgical instrument which reduces thermal damage to adjacent tissue | 8 | 2004 | |
| 7,147,638 Electrosurgical instrument which reduces thermal damage to adjacent tissue | 167 | 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 | 12 | 2004 | |
| 7,491,201 Tissue sealer with non-conductive variable stop members and method of sealing tissue | 99 | 2004 | |
| 7,252,667 Open vessel sealing instrument with cutting mechanism and distal lockout | 112 | 2004 | |
| 7,160,293 Multiple RF return pad contact detection system | 57 | 2004 | |
| 7,887,535 Vessel sealing wave jaw | 4 | 2004 | |
| 6,997,735 Return pad cable connector | 19 | 2004 | |
| 7,276,068 Vessel sealing instrument with electrical cutting mechanism | 109 | 2004 | |
| 7,150,749 Vessel sealer and divider having elongated knife stroke and safety cutting mechanism | 116 | 2004 | |
| 7,811,283 Open vessel sealing instrument with hourglass cutting mechanism and over-ratchet safety | 10 | 2004 | |
| D567943 Over-ratchet safety for a vessel sealing instrument | 81 | 2004 | |
| 7,232,440 Bipolar forceps having monopolar extension | 122 | 2004 | |
| 7,396,336 Switched resonant ultrasonic power amplifier system | 105 | 2004 | |
| 7,367,976 Bipolar forceps having monopolar extension | 103 | 2004 | |
| 7,131,970 Open vessel sealing instrument with cutting mechanism | 120 | 2004 | |
| 7,510,556 Vessel sealing instrument | 66 | 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 | 69 | 2005 | |
| 7,377,920 Laparoscopic bipolar electrosurgical instrument | 66 | 2005 | |
| 7,628,786 Universal foot switch contact port | 6 | 2005 | |
| 7,207,990 Laparoscopic bipolar electrosurgical instrument | 105 | 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 | 90 | 2005 | |
| 7,955,332 Mechanism for dividing tissue in a hemostat-style instrument | 4 | 2005 | |
| 7,628,792 Bilateral foot jaws | 14 | 2005 | |
| 7,500,975 Spring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument | 72 | 2005 | |
| 7,229,307 Return pad cable connector | 17 | 2005 | |
| 7,686,827 Magnetic closure mechanism for hemostat | 9 | 2005 | |
| 7,594,916 Electrosurgical forceps with energy based tissue division | 14 | 2005 | |
| 7,947,039 Laparoscopic apparatus for performing electrosurgical procedures | 3 | 2005 | |
| 7,329,256 Vessel sealing instrument | 115 | 2005 | |
| 7,686,804 Vessel sealer and divider with rotating sealer and cutter | 13 | 2006 | |
| 7,736,359 RF return pad current detection system | 4 | 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 | |
| 7,131,971 Vessel sealer and divider | 110 | 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 | 9 | 2006 | |
| 7,846,158 Apparatus and method for electrode thermosurgery | 5 | 2006 | |
| 7,270,664 Vessel sealing instrument with electrical cutting mechanism | 110 | 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 | |
| 7,255,697 Vessel sealer and divider | 110 | 2006 | |
| 7,637,907 System and method for return electrode monitoring | 6 | 2006 | |
| 7,927,329 Temperature sensing return electrode pad | 4 | 2006 | |
| 7,922,953 Method for manufacturing an end effector assembly | 5 | 2006 | |
| 7,794,457 Transformer for RF voltage sensing | 3 | 2006 | |
| 7,722,603 Smart return electrode pad | 4 | 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 | |
| 7,938,825 Multiple RF return pad contact detection system | 3 | 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 | |
| 8,080,008 Method and system for programming and controlling an electrosurgical generator system | 1 | 2007 | |
| 7,722,412 Return pad cable connector | 4 | 2007 | |
| 7,553,312 Vessel sealing instrument | 68 | 2007 | |
| 7,513,898 Vessel sealing instrument | 72 | 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 | |
| 8,062,291 Smart return electrode pad | 3 | 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 | |
| 8,216,222 Temperature sensing return electrode pad | 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 | |
|
|
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| 8,292,888 Bipolar or ultrasonic surgical device | 0 | 2002 | |
| 6,882,166 System and method for measuring the validity of a bioelectric impedance measurement in the presence of interference | 4 | 2002 | |
| 7,161,362 System and method for measuring bioelectric impedance in the presence of interference | 4 | 2005 | |
| 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 | |
| D575395 Hemostat style elongated dissecting and dividing instrument | 87 | 2007 | |
| 8,021,360 System and method for providing even heat distribution and cooling return pads | 3 | 2007 | |
| 8,267,935 Electrosurgical instrument reducing current densities at an insulator conductor junction | 0 | 2007 | |
| 8,080,007 Capacitive electrosurgical return pad with contact quality monitoring | 3 | 2007 | |
| 8,388,612 Temperature monitoring return electrode | 0 | 2007 | |
| 8,231,614 Temperature monitoring return electrode | 1 | 2007 | |
| 8,070,746 Radiofrequency fusion of cardiac tissue | 2 | 2007 | |
| D575401 Vessel sealer | 95 | 2007 | |
| 7,834,484 Connection cable and method for activating a voltage-controlled generator | 3 | 2007 | |
| 8,100,898 System and method for return electrode monitoring | 4 | 2007 | |
| 8,216,220 System and method for transmission of combined data stream | 0 | 2007 | |
| 8,226,639 System and method for output control of electrosurgical generator | 2 | 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 | |
| 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 | |
| 8,016,827 Apparatus, system, and method for performing an electrosurgical procedure | 8 | 2008 | |
| 8,197,479 Vessel sealer and divider | 4 | 2008 | |
| 8,298,225 System and method for return electrode monitoring | 0 | 2009 | |
| 8,298,232 Endoscopic vessel sealer and divider for large tissue structures | 0 | 2009 | |
| 8,425,504 Radiofrequency fusion of cardiac tissue | 0 | 2011 | |
| 8,235,980 Electrosurgical system for measuring contact quality of a return pad | 0 | 2011 | |
| 8,430,873 System and method for return electrode monitoring | 0 | 2012 | |
| 8,353,905 System and method for transmission of combined data stream | 0 | 2012 | |
| 8,382,749 Temperature monitoring return electrode | 0 | 2012 | |
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| 5,776,130 Vascular tissue sealing pressure control | 291 | 1995 | |
| 6,267,761 Apparatus and method for sealing and cutting tissue | 237 | 1997 | |
| 6,179,834 Vascular tissue sealing pressure control and method | 194 | 1998 | |
| 6,039,733 Method of vascular tissue sealing pressure control | 289 | 1998 | |
| D425201 Disposable electrode assembly | 180 | 1998 | |
| 6,152,923 Multi-contact forceps and method of sealing, coagulating, cauterizing and/or cutting vessels and tissue | 201 | 1999 | |
| 6,334,861 Biopolar instrument for vessel sealing | 191 | 1999 | |
| 6,887,240 Vessel sealing wave jaw | 123 | 1999 | |
| 7,435,249 Electrosurgical instruments which reduces collateral damage to adjacent tissue | 65 | 2001 | |
| 7,160,298 Electrosurgical instrument which reduces effects to adjacent tissue structures | 108 | 2001 | |
| 7,135,020 Electrosurgical instrument reducing flashover | 106 | 2001 | |
| 7,118,587 Vessel sealer and divider | 157 | 2001 | |
| 7,101,372 Vessel sealer and divider | 150 | 2001 | |
| 7,101,373 Vessel sealer and divider | 158 | 2001 | |
| D457958 Vessel sealer and divider | 243 | 2001 | |
| D457959 Vessel sealer | 172 | 2001 | |
| 7,090,673 Vessel sealer and divider | 201 | 2002 | |
| 6,726,686 Bipolar electrosurgical instrument for sealing vessels | 132 | 2002 | |
| D499181 Handle for a vessel sealer and divider | 180 | 2003 | |
| 7,150,097 Method of manufacturing jaw assembly for vessel sealer and divider | 140 | 2003 | |
| 7,300,435 Automatic control system for an electrosurgical generator | 148 | 2003 | |
| 7,255,694 Variable output crest factor electrosurgical generator | 41 | 2003 | |
| 7,033,354 Electrosurgical electrode having a non-conductive porous ceramic coating | 113 | 2003 | |
| 7,241,296 Bipolar electrosurgical instrument for sealing vessels | 113 | 2003 | |
| D541938 Open vessel sealer with mechanical cutter | 132 | 2004 | |
| 7,384,420 Vessel sealer and divider | 72 | 2004 | |
| D533942 Open vessel sealer with mechanical cutter | 132 | 2004 | |
| 7,195,631 Forceps with spring loaded end effector assembly | 135 | 2004 | |
| D541418 Lung sealing device | 143 | 2004 | |
| D535027 Low profile vessel sealing and cutting mechanism | 151 | 2004 | |
| D531311 Pistol grip style elongated dissecting and dividing instrument | 141 | 2004 | |
| D525361 Hemostat style elongated dissecting and dividing instrument | 138 | 2004 | |
| D564662 Hourglass-shaped knife for electrosurgical forceps | 125 | 2004 | |
| 7,384,421 Slide-activated cutting assembly | 68 | 2005 | |
| 7,223,265 Electrosurgical electrode having a non-conductive porous ceramic coating | 103 | 2006 | |
| 7,458,972 Electrosurgical electrode having a non-conductive porous ceramic coating | 68 | 2007 | |
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| 6,293,942 Electrosurgical generator method | 210 | 1996 | |
| 6,015,406 Electrosurgical instrument | 193 | 1996 | |
| 6,004,319 Electrosurgical instrument | 227 | 1996 | |
| 6,027,501 Electrosurgical instrument | 201 | 1996 | |
| 6,013,076 Electrosurgical instrument | 144 | 1996 | |
| 5,944,715 Electrosurgical instrument | 234 | 1996 | |
| 6,093,186 Electrosurgical generator and system | 224 | 1997 | |
| 6,416,509 Electrosurgical generator and system | 191 | 1998 | |
| 6,090,106 Electrosurgical instrument | 161 | 1998 | |
| 6,056,746 Electrosurgical instrument | 235 | 1998 | |
| 6,364,877 Electrosurgical generator and system | 152 | 1998 | |
| 6,306,134 Electrosurgical generator and system | 213 | 1998 | |
| 6,261,286 Electrosurgical generator and system | 183 | 1998 | |
| 6,210,405 Under water treatment | 49 | 1998 | |
| 6,277,114 Electrode assembly for an electrosurical instrument | 45 | 1999 | |
| 6,174,308 Electrosurgical instrument | 49 | 1999 | |
| 6,234,178 Electrosurgical instrument | 82 | 1999 | |
| 6,780,180 Electrosurgical instrument | 108 | 2000 | |
| 6,565,561 Electrosurgical instrument | 17 | 2000 | |
| 6,482,202 Under water treatment | 43 | 2001 | |
| 7,220,260 Electrosurgical system | 79 | 2003 | |
| 7,901,401 Electrosurgical system | 0 | 2007 | |
|
|
|||
| 5,707,369 Temperature feedback monitor for hemostatic surgical instrument | 327 | 1995 | |
| 5,984,921 Method and apparatus for applying electrical energy to medical instruments | 4 | 1997 | |
| 5,961,514 Cordless electrosurgical instrument | 170 | 1997 | |
| 5,925,041 Monopolar electrosurgical trocar | 5 | 1997 | |
| 6,106,519 Capacitively coupled electrosurgical trocar | 8 | 1997 | |
| 5,951,552 Capacitively coupled cordless electrosurgical instrument | 75 | 1997 | |
| 5,916,215 Inductively coupled electrosurgical trocar | 3 | 1997 | |
| 5,849,020 Inductively coupled electrosurgical instrument | 42 | 1997 | |
| 6,117,132 Inductively coupled electrosurgical trocar | 4 | 1999 | |
| 6,206,875 Method of capactively coupling energy to an electrosurgical instrument | 2 | 1999 | |
| 6,187,002 Capacitive electrosurgical trocar including adapater | 4 | 1999 | |
| 6,120,501 Method and apparatus for applying electrical energy to medical instruments | 6 | 1999 | |
| 6,030,403 Method and apparatus for applying electrical energy to medical instruments | 40 | 1999 | |
| 6,352,532 Active load control of ultrasonic surgical instruments | 71 | 1999 | |
|
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| 7,033,352 Flexible ablation instrument | 15 | 2000 | |
| 7,099,717 Catheter having improved steering | 4 | 2002 | |
| 6,699,245 Anastomosis system and related methods | 12 | 2002 | |
| 7,052,491 Vacuum-assisted securing apparatus for a microwave ablation instrument | 11 | 2002 | |
| 7,115,126 Directional microwave ablation instrument with off-set energy delivery portion | 16 | 2002 | |
| 7,192,427 Apparatus and method for assessing transmurality of a tissue ablation | 34 | 2003 | |
| 6,976,986 Electrode arrangement for use in a medical instrument | 37 | 2004 | |
| 7,303,560 Method of positioning a medical instrument | 6 | 2004 | |
| 7,346,399 Monopole tip for ablation catheter | 3 | 2004 | |
| 7,156,841 Electrode arrangement for use in a medical instrument | 1 | 2005 | |
| 7,387,627 Vacuum-assisted securing apparatus for a microwave ablation instrument | 12 | 2005 | |
| 7,301,131 Microwave ablation instrument with flexible antenna assembly and method | 15 | 2006 | |
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| 6,849,073 Apparatus and method for creating, maintaining, and controlling a virtual electrode used for the ablation of tissue | 172 | 2002 | |
| 6,663,627 Ablation system and method of use | 95 | 2002 | |
| 6,648,883 Ablation system and method of use | 142 | 2002 | |
| 6,989,010 Ablation system and method of use | 49 | 2003 | |
| 7,367,972 Ablation system | 52 | 2003 | |
| 7,029,470 Ablation system and method of use | 12 | 2003 | |
| 7,250,048 Ablation system and method of use | 51 | 2004 | |
| 7,824,399 Ablation system and method of use | 0 | 2006 | |
| 7,959,626 Transmural ablation systems and methods | 19 | 2007 | |
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| 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 | |
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| 7,749,218 Method of straddling an intraosseous nerve | 6 | 2005 | |
| 8,419,730 Systems and methods for navigating an instrument through bone | 0 | 2009 | |
| 8,414,571 Vertebral bone navigation systems | 0 | 2012 | |
| 8,425,507 Basivertebral nerve denervation | 0 | 2012 | |
| 8,361,067 Methods of therapeutically heating a vertebral body to treat back pain | 0 | 2012 | |
| 8,419,731 Methods of treating back pain | 0 | 2012 | |
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| 6,692,491 Surgical methods and apparatus for positioning a diagnostic or therapeutic element around one or more pulmonary veins or other body structures | 75 | 2000 | |
| 6,932,816 Apparatus for converting a clamp into an electrophysiology device | 122 | 2002 | |
| 6,926,712 Clamp having at least one malleable clamp member and surgical method employing the same | 22 | 2002 | |
| 7,727,231 Apparatus and methods for forming lesions in tissue and applying stimulation energy to tissue in which lesions are formed | 2 | 2005 | |
| 7,422,591 Apparatus for converting a clamp into an electrophysiology device | 2 | 2005 | |
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| 7,753,908 Apparatus for securing an electrophysiology probe to a clamp | 9 | 2002 | |
| 8,002,770 Clamp based methods and apparatus for forming lesions in tissue and confirming whether a therapeutic lesion has been formed | 2 | 2003 | |
| 7,785,324 Clamp based lesion formation apparatus and methods configured to protect non-target tissue | 0 | 2005 | |
| 8,241,277 Apparatus for securing an electrophysiology probe to a clamp | 0 | 2010 | |
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| 6,338,731 Method and systems for reducing surgical complications | 9 | 1999 | |
| 6,520,185 Systems and methods for reducing post-surgical complications | 15 | 1999 | |
| 6,645,198 Systems and methods for reducing post-surgical complications | 55 | 2000 | |
| 6,775,575 System and method for reducing post-surgical complications | 123 | 2002 | |
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| 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 | |
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|
|||
| 6,830,576 Apparatus for electrically isolating a portion of the atria | 18 | 2002 | |
| 7,297,144 Methods for electrically isolating a portion of the atria | 4 | 2004 | |
| 7,857,822 Device for installing stasis reducing means in body tissue | 0 | 2007 | |
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|
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| 6,730,080 Electric operation apparatus | 63 | 2001 | |
| 7,172,591 Electric operation apparatus | 45 | 2003 | |
| 7,306,599 Medical instrument and medical instrument system | 4 | 2004 | |
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| 6,030,384 Bipolar surgical instruments having focused electrical fields | 164 | 1998 | |
| 6,162,220 Bipolar surgical instruments having focused electrical fields | 213 | 1999 | |
| 6,514,252 Bipolar surgical instruments having focused electrical fields | 114 | 2001 | |
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| D449886 Forceps with disposable electrode | 183 | 1998 | |
| 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 | |
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|
|||
| 7,483,755 Devices, methods, and systems for shrinking tissues | 1 | 2003 | |
| 7,689,290 Devices, methods, and systems for shrinking tissues | 0 | 2004 | |
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|||
| 5,837,001 Radio frequency energy delivery system for multipolar electrode catheters | 70 | 1995 | |
| 5,931,835 Radio frequency energy delivery system for multipolar electrode catheters | 53 | 1997 | |
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|
|||
| 6,558,378 RF ablation system and method having automatic temperature control | 33 | 2000 | |
| 6,752,804 Ablation system and method having multiple-sensor electrodes to assist in assessment of electrode and sensor position and adjustment of energy levels | 25 | 2000 | |
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|
|||
| 6,436,096 Electrosurgical apparatus with stable coagulation | 59 | 1999 | |
| 6,511,476 Electrosurgical apparatus with stable coagulation | 59 | 2001 | |
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|||
| 7,226,446 Surgical microwave ablation assembly | 20 | 2000 | |
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|||
| 7,871,410 System for, and method of, heating a biological site in a patient's body | 0 | 2003 | |
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|||
| 8,221,406 Device for the electro-surgical sclerosing of body tissues | 0 | 2005 | |
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|||
| D680220 Slider handle for laparoscopic device | 0 | 2012 | |
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| 6,907,884 Method of straddling an intraosseous nerve | 33 | 2002 | |
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|||
| 8,409,198 Clamp based methods and apparatus for forming lesions in tissue and confirming whether a therapeutic lesion has been formed | 0 | 2011 | |
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|||
| 7,025,764 Bonding of soft biological tissues by passing high frequency electric current therethrough | 36 | 2002 | |
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| 7,431,721 Bonding of soft biological tissues by passing high frequency electric current therethrough | 11 | 2005 | |
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| 6,312,426 Method and system for performing plate type radiofrequency ablation | 35 | 1997 | |
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| 5,947,996 Yoke for surgical instrument | 14 | 1997 | |
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| 6,090,107 Resposable electrosurgical instrument | 174 | 1998 | |
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| 7,645,278 Coagulating cutter | 0 | 2006 | |
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|
|||
| 7,972,328 System and method for tissue sealing | 7 | 2007 | |
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|
|||
| D424694 Forceps | 190 | 1998 | |
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|
|||
| 6,010,516 Bipolar coaptation clamps | 214 | 1998 | |
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |