US Patent No: 6,261,286
Number of patents in Portfolio can not be more than 2000
Electrosurgical generator and system
Stats
-
Jul 17, 2001
Issued date -
Oct 16, 1998
filing date -
09/173,737
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
An electrosurgical system including an electrode assembly having two electrodes for use immersed in an electrically conductive fluid has a generator with control circuitry for rapidly reducing the delivered radio frequency output power by at least 50% within at most a few cycles of the peak radio frequency output voltage reaching a predetermined threshold limit. In this way, tissue coagulation can be performed in, for example, saline without significant steam Generation. The same peak voltage limitation technique is used in a tissue vaporisation or cutting mode to limit the size of the steam pocket at the electrodes and to avoid electrode burning.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,802,476 Electro-surgical instrument | 90 | 1987 | |
| 4,850,353 Silicon nitride electrosurgical blade | 126 | 1988 | |
| 4,976,711 Ablation catheter with selectively deployable electrodes | 521 | 1989 | |
| 5,007,908 Electrosurgical instrument having needle cutting electrode and spot-coag electrode | 587 | 1989 | |
| 5,035,696 Electrosurgical instrument for conducting endoscopic retrograde sphincterotomy | 388 | 1990 | |
| 5,013,312 Bipolar scalpel for harvesting internal mammary artery | 276 | 1990 | |
| 5,047,027 Tumor resector | 205 | 1990 | |
| 5,047,026 Electrosurgical implement for tunneling through tissue | 171 | 1990 | |
| 5,098,431 RF ablation catheter | 250 | 1990 | |
| 5,083,565 Electrosurgical instrument for ablating endocardial tissue | 380 | 1990 | |
| 5,085,659 Biopsy device with bipolar coagulation capability | 423 | 1990 | |
| 5,057,107 Ablation catheter with selectively deployable electrodes | 267 | 1991 | |
| 5,282,799 Bipolar electrosurgical scalpel with paired loop electrodes | 322 | 1991 | |
| 5,171,311 Percutaneous laparoscopic cholecystectomy instrument | 206 | 1991 | |
| 5,171,255 Biopsy device | 106 | 1991 | |
| 5,250,047 Bipolar laparoscopic instrument with replaceable electrode tip assembly | 235 | 1991 | |
| 5,158,561 Monopolar polypectomy snare with coagulation electrode | 141 | 1992 | |
| 5,217,458 Bipolar biopsy device utilizing a rotatable, single-hinged moving element | 342 | 1992 | |
| 5,258,006 Bipolar electrosurgical forceps | 342 | 1992 | |
|
|
|||
| 4,998,933 Thermal angioplasty catheter and method | 437 | 1988 | |
| 5,178,620 Thermal dilatation catheter and method | 329 | 1991 | |
| 5,366,443 Method and apparatus for advancing catheters through occluded body lumens | 356 | 1992 | |
| 5,419,767 Methods and apparatus for advancing catheters through severely occluded body lumens | 275 | 1993 | |
| 5,697,909 Methods and apparatus for surgical cutting | 451 | 1995 | |
| 5,697,281 System and method for electrosurgical cutting and ablation | 410 | 1995 | |
| 5,683,366 System and method for electrosurgical tissue canalization | 424 | 1995 | |
| 5,697,882 System and method for electrosurgical cutting and ablation | 495 | 1995 | |
| 5,902,272 Planar ablation probe and method for electrosurgical cutting and ablation | 229 | 1996 | |
| 5,810,764 Resecting loop electrode and method for electrosurgical cutting and ablation | 326 | 1996 | |
| 5,843,019 Shaped electrodes and methods for electrosurgical cutting and ablation | 239 | 1996 | |
| 5,697,536 System and method for electrosurgical cutting and ablation | 407 | 1996 | |
| 5,860,951 Systems and methods for electrosurgical myocardial revascularization | 173 | 1996 | |
| 5,873,855 Systems and methods for electrosurgical myocardial revascularization | 207 | 1996 | |
| 5,766,153 Methods and apparatus for surgical cutting | 269 | 1996 | |
| 5,888,198 Electrosurgical system for resection and ablation of tissue in electrically conductive fluids | 252 | 1996 | |
| 5,891,095 Electrosurgical treatment of tissue in electrically conductive fluid | 283 | 1996 | |
| 5,871,469 System and method for electrosurgical cutting and ablation | 246 | 1997 | |
|
|
|||
| 5,088,997 Gas coagulation device | 243 | 1990 | |
| 5,244,462 Electrosurgical apparatus | 276 | 1991 | |
| 5,217,457 Enhanced electrosurgical apparatus | 425 | 1992 | |
| 5,281,216 Electrosurgical bipolar treating apparatus | 368 | 1992 | |
| 5,277,201 Endometrial ablation apparatus and method | 631 | 1992 | |
| 5,221,281 Electrosurgical tubular trocar | 122 | 1992 | |
| 5,443,470 Method and apparatus for endometrial ablation | 285 | 1993 | |
| 5,370,645 Electrosurgical processor and method of use | 163 | 1993 | |
| 5,372,596 Apparatus for leakage control and method for its use | 125 | 1993 | |
| 5,423,809 Electrosurgical control for a trocar | 143 | 1993 | |
| 5,496,312 Impedance and temperature generator control | 646 | 1993 | |
| 5,514,129 Automatic bipolar control for an electrosurgical generator | 126 | 1993 | |
| 5,422,567 High frequency power measurement | 231 | 1993 | |
| 5,382,247 Technique for electrosurgical tips and method of manufacture and use | 155 | 1994 | |
| 5,562,720 Bipolar/monopolar endometrial ablation device and method | 399 | 1994 | |
| 5,575,789 Energizable surgical tool safety device and method | 61 | 1994 | |
| 5,599,344 Control apparatus for electrosurgical generator power output | 126 | 1995 | |
| 5,628,745 Exit spark control for an electrosurgical generator | 81 | 1995 | |
|
|
|||
| 4,936,842 Electrosurgical probe apparatus | 101 | 1989 | |
| 5,267,994 Electrosurgical probe | 354 | 1992 | |
| 5,300,070 Electrosurgical trocar assembly with bi-polar electrode | 120 | 1992 | |
| 5,599,348 Electrosurgical trocar assembly | 88 | 1994 | |
| 5,626,575 Power level control apparatus for electrosurgical generators | 106 | 1995 | |
| 5,609,573 Electrosurgical suction/irrigation instrument | 87 | 1996 | |
|
|
|||
| 4,682,596 Electrosurgical catheter and method for vascular applications | 442 | 1984 | |
| 4,832,048 Suction ablation catheter | 243 | 1987 | |
| RE33925 Electrosurgical catheter aned method for vascular applications | 221 | 1988 | |
| 5,383,923 Steerable catheter having puller wire with shape memory | 157 | 1993 | |
| 5,462,521 Fluid cooled and perfused tip for a catheter | 364 | 1993 | |
| 5,607,422 Catheter with elongated side electrode | 98 | 1994 | |
|
|
|||
| 4,416,277 Return electrode monitoring system for use during electrosurgical activation | 131 | 1981 | |
| 4,565,200 Universal lesion and recording electrode system | 472 | 1982 | |
| 4,658,819 Electrosurgical generator | 190 | 1983 | |
| 4,827,927 Apparatus for changing the output power level of an electrosurgical generator while remaining in the sterile field of a surgical procedure | 112 | 1984 | |
| 4,658,820 Electrosurgical generator with improved circuitry for generating RF drive pulse trains | 86 | 1985 | |
| 4,966,597 Thermometric cardiac tissue ablation electrode with ultra-sensitive temperature detection | 547 | 1988 | |
|
|
|||
| 5,536,267 Multiple electrode ablation apparatus | 532 | 1994 | |
| 5,507,743 Coiled RF electrode treatment apparatus | 350 | 1994 | |
| 5,599,345 RF treatment apparatus | 277 | 1994 | |
| 5,599,346 RF treatment system | 223 | 1994 | |
| 5,672,174 Multiple antenna ablation apparatus and method | 206 | 1996 | |
|
|
|||
| 5,403,311 Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue | 735 | 1993 | |
| 5,336,222 Integrated catheter for diverse in situ tissue therapy | 194 | 1993 | |
| 5,423,811 Method for RF ablation using cooled electrode | 456 | 1994 | |
| 5,545,161 Catheter for RF ablation having cooled electrode with electrically insulated sleeve | 367 | 1994 | |
| 5,578,007 Endocardial mapping and ablation system utilizing a separately controlled ablation catheter and method | 227 | 1995 | |
|
|
|||
| 5,383,874 Systems for identifying catheters and monitoring their use | 279 | 1992 | |
| 5,423,808 Systems and methods for radiofrequency ablation with phase sensitive power detection | 273 | 1993 | |
| 5,582,609 Systems and methods for forming large lesions in body tissue using curvilinear electrode elements | 446 | 1994 | |
| 5,735,846 Systems and methods for ablating body tissue using predicted maximum tissue temperature | 142 | 1995 | |
| 5,545,193 Helically wound radio-frequency emitting electrodes for creating lesions in body tissue | 261 | 1995 | |
|
|
|||
| 5,472,443 Electrosurgical apparatus employing constant voltage and methods of use | 330 | 1994 | |
| 5,480,397 Surgical instrument with auto-regulating heater and method of using same | 70 | 1994 | |
| 5,480,398 Endoscopic instrument with disposable auto-regulating heater | 68 | 1994 | |
| 5,633,578 Electrosurgical generator adaptors | 160 | 1994 | |
| 5,693,045 Electrosurgical generator cable | 73 | 1995 | |
|
|
|||
| 5,334,193 Fluid cooled ablation catheter | 728 | 1992 | |
| 5,342,357 Fluid cooled electrosurgical cauterization system | 511 | 1992 | |
| 5,437,662 Fluid cooled electrosurgical cauterization system | 293 | 1994 | |
| 5,383,876 Fluid cooled electrosurgical probe for cutting and cauterizing tissue | 539 | 1994 | |
|
|
|||
| 4,189,685 Self-protecting transistor oscillator for treating animal tissues | 31 | 1978 | |
| 4,326,529 Corneal-shaping electrode | 372 | 1979 | |
| 4,339,049 Containers for use in a self supporting assembly | 96 | 1980 | |
| 4,381,007 Multipolar corneal-shaping electrode with flexible removable skirt | 371 | 1981 | |
|
|
|||
| 5,354,296 Electrocautery probe with variable morphology electrode | 76 | 1993 | |
| 5,549,605 Roller electrodes for electrocautery probes for use with a resectoscope | 50 | 1995 | |
| 5,569,244 Loop electrodes for electrocautery probes for use with a resectoscope | 74 | 1995 | |
| 5,634,924 Bipolar roller electrodes and electrocautery probes for use with a resectoscope | 52 | 1995 | |
|
|
|||
| 5,330,470 Electro-surgical treatment instrument | 235 | 1992 | |
| 5,441,499 Bipolar radio-frequency surgical instrument | 345 | 1994 | |
| 5,569,164 Surgical laparoscopic apparatus | 52 | 1994 | |
|
|
|||
| 5,196,007 Electrosurgical handpiece with activator | 139 | 1991 | |
| 5,395,368 Multiple-wire electrosurgical electrodes | 67 | 1993 | |
| 5,505,728 Electrosurgical stripping electrode for palatopharynx tissue | 147 | 1995 | |
|
|
|||
| 4,860,745 High frequency electrosurgical apparatus for thermal coagulation of biologic tissues | 109 | 1987 | |
| 4,969,885 High frequency surgery device for cutting and/or coagulating biologic tissue | 195 | 1990 | |
| 5,267,997 High-frequency electrosurgery apparatus with limitation of effective value of current flowing through a surgical instrument | 305 | 1992 | |
|
|
|||
| 4,936,281 Ultrasonically enhanced RF ablation catheter | 464 | 1989 | |
| 5,352,222 Surgical scissors with bipolar coagulation feature | 317 | 1994 | |
| 5,540,685 Bipolar electrical scissors with metal cutting edges and shearing surfaces | 224 | 1995 | |
|
|
|||
| 4,593,691 Electrosurgery electrode | 298 | 1983 | |
| 4,936,301 Electrosurgical method using an electrically conductive fluid | 208 | 1987 | |
| 4,943,290 Electrolyte purging electrode tip | 373 | 1989 | |
|
|
|||
| 5,431,649 Method and apparatus for R-F ablation | 437 | 1993 | |
| 5,609,151 Method for R-F ablation | 395 | 1994 | |
| 5,725,524 Apparatus for R-F ablation | 285 | 1996 | |
|
|
|||
| 4,950,267 Laser beam treatment device for an endoscope | 176 | 1988 | |
| 5,540,683 High frequency cauterizing apparatus | 115 | 1994 | |
| 5,628,771 Electromagnetic-wave thermatological device | 97 | 1996 | |
|
|
|||
| 4,559,943 Electrosurgical generator | 99 | 1983 | |
| 4,727,874 Electrosurgical generator with high-frequency pulse width modulated feedback power control | 268 | 1984 | |
| 4,781,175 Electrosurgical conductive gas stream technique of achieving improved eschar for coagulation | 135 | 1986 | |
|
|
|||
| 4,967,765 Urethral inserted applicator for prostate hyperthermia | 315 | 1988 | |
| 5,249,585 Urethral inserted applicator for prostate hyperthermia | 293 | 1990 | |
|
|
|||
| 5,080,660 Electrosurgical electrode | 453 | 1990 | |
| 5,599,347 Surgical trocar with cutoff circuit | 102 | 1994 | |
|
|
|||
| 4,559,951 Catheter assembly | 203 | 1982 | |
| 5,133,365 Implantable tapered spiral endocardial lead for use in internal defibrillation | 64 | 1991 | |
|
|
|||
| 4,202,337 Bipolar electrosurgical knife | 252 | 1977 | |
| 4,228,800 Bipolar electrosurgical knife | 261 | 1978 | |
|
|
|||
| 5,540,684 Method and apparatus for electrosurgically treating tissue | 363 | 1994 | |
| 5,558,671 Impedance feedback monitor for electrosurgical instrument | 352 | 1994 | |
|
|
|||
| 5,099,840 Diathermy unit | 303 | 1989 | |
| 5,423,810 Cauterising apparatus | 347 | 1993 | |
|
|
|||
| 5,582,610 Grooved slider electrode for a resectoscope | 50 | 1994 | |
| 5,599,349 V shaped grooved roller electrode for a resectoscope | 44 | 1994 | |
|
|
|||
| 5,197,963 Electrosurgical instrument with extendable sheath for irrigation and aspiration | 496 | 1991 | |
| 5,603,711 Endoscopic bipolar biopsy forceps | 193 | 1995 | |
|
|
|||
| 5,330,471 Bi-polar electrosurgical endoscopic instruments and methods of use | 316 | 1992 | |
| 5,496,314 Irrigation and shroud arrangement for electrically powered endoscopic probes | 206 | 1992 | |
|
|
|||
| 4,931,047 Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis | 472 | 1987 | |
| 5,190,517 Electrosurgical and ultrasonic surgical system | 417 | 1991 | |
|
|
|||
| 5,531,744 Alternative current pathways for bipolar surgical cutting tool | 450 | 1994 | |
| 5,941,876 Electrosurgical rotating cutting device | 46 | 1997 | |
|
|
|||
| 5,540,681 Method and system for radiofrequency ablation of tissue | 249 | 1994 | |
| 5,584,830 Method and system for radiofrequency ablation of cardiac tissue | 133 | 1994 | |
|
|
|||
| 5,383,917 Device and method for multi-phase radio-frequency ablation | 597 | 1991 | |
| 5,620,481 Device for multi-phase radio-frequency ablation | 133 | 1995 | |
|
|
|||
| 5,282,845 Multiple electrode deployable lead | 184 | 1990 | |
| 5,259,395 Pacemaker lead with extendable retractable lockable fixing helix | 110 | 1992 | |
|
|
|||
| 5,540,680 Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas | 150 | 1994 | |
| 5,569,245 Detachable endovascular occlusion device activated by alternating electric current | 151 | 1994 | |
|
|
|||
| 5,370,675 Medical probe device and method | 723 | 1993 | |
| 5,542,916 Dual-channel RF power delivery system | 179 | 1994 | |
|
|
|||
| 5,454,809 Electrosurgical catheter and method for resolving atherosclerotic plaque by radio frequency sparking | 411 | 1994 | |
| 5,626,576 Electrosurgical catheter for resolving atherosclerotic plaque by radio frequency sparking | 126 | 1995 | |
|
|
|||
| 4,548,207 Disposable coagulator | 241 | 1982 | |
| 5,009,656 Bipolar electrosurgical instrument | 368 | 1989 | |
|
|
|||
| 4,271,837 Electrosurgical apparatus | 38 | 1979 | |
|
|
|||
| 4,512,338 Process for restoring patency to body vessels | 741 | 1983 | |
|
|
|||
| 5,167,659 Blood coagulating apparatus | 222 | 1991 | |
|
|
|||
| 5,520,685 Thermally-insulated anti-clog tip for electrocautery suction tubes | 67 | 1994 | |
|
|
|||
| 5,207,675 Surgical coagulation device | 226 | 1991 | |
|
|
|||
| 5,167,658 Method and apparatus for electrosurgical measurement | 119 | 1991 | |
|
|
|||
| 4,860,744 Thermoelectrically controlled heat medical catheter | 383 | 1987 | |
|
|
|||
| 5,555,618 Method of making electrode-carrying catheter | 40 | 1994 | |
|
|
|||
| 4,617,927 Electrosurgical unit | 55 | 1984 | |
|
|
|||
| 5,344,428 Miniature surgical instrument | 89 | 1993 | |
|
|
|||
| 4,669,468 Capacitively coupled indifferent electrode | 59 | 1981 | |
|
|
|||
| 4,706,667 Electro surgical high frequency cutting instrument | 240 | 1986 | |
|
|
|||
| 4,813,429 Catheter and probe | 282 | 1987 | |
|
|
|||
| 5,306,238 Laparoscopic electrosurgical pencil | 175 | 1991 | |
|
|
|||
| 4,376,263 Battery charging circuit | 100 | 1981 | |
|
|
|||
| 5,317,155 Corona discharge apparatus | 55 | 1992 | |
|
|
|||
| 4,448,198 Invasive hyperthermia apparatus and method | 158 | 1981 | |
|
|
|||
| 4,823,791 Electrosurgical probe apparatus | 325 | 1987 | |
|
|
|||
| 4,532,924 Multipolar electrosurgical device and method | 502 | 1982 | |
|
|
|||
| 4,799,480 Electrode for electrosurgical apparatus | 90 | 1987 | |
|
|
|||
| 4,301,802 Cauterizing tool for ophthalmological surgery | 133 | 1980 | |
|
|
|||
| 4,248,231 Surgical cutting instrument | 244 | 1978 | |
|
|
|||
| 4,820,298 Internal vascular prosthesis | 387 | 1987 | |
|
|
|||
| 5,514,130 RF apparatus for controlled depth ablation of soft tissue | 515 | 1994 | |
|
|
|||
| 5,505,730 Thin layer ablation apparatus | 510 | 1994 | |
|
|
|||
| 5,688,269 Electrosurgical apparatus for laparoscopic and like procedures | 98 | 1993 | |
|
|
|||
| 5,261,906 Electro-surgical dissecting and cauterizing instrument | 100 | 1991 | |
|
|
|||
| 5,556,396 Method for tubal electroligation | 231 | 1995 | |
|
|
|||
| 5,318,563 Bipolar RF generator | 219 | 1992 | |
|
|
|||
| 5,062,031 Self oscillating power stage for inverted rectifier power supply | 29 | 1989 | |
|
|
|||
| 4,709,698 Heatable dilation catheter | 345 | 1986 | |
|
|
|||
| 4,517,976 High frequency scalpel and endoscope system and method of operating same | 53 | 1982 | |
|
|
|||
| 4,323,585 Process for the production of pasta products packed ready for sale in serving portions in packages | 37 | 1980 | |
|
|
|||
| 5,514,131 Method for the ablation treatment of the uvula | 228 | 1994 | |
|
|
|||
| 5,438,302 Electrosurgical radiofrequency generator having regulated voltage across switching device | 384 | 1994 | |
|
|
|||
| 5,201,743 Axially extendable endoscopic surgical instrument | 110 | 1992 | |
|
|
|||
| 5,334,198 Surgical instrument | 100 | 1992 | |
|
|
|||
| 4,562,838 Electrosurgery instrument | 227 | 1981 | |
|
|
|||
| 5,630,426 Apparatus and method for characterization and treatment of tumors | 185 | 1995 | |
|
|
|||
| 5,542,945 Electro-surgical radio-frequency instrument | 216 | 1994 | |
|
|
|||
| 4,210,152 Method and apparatus for measuring and controlling the output power of a shortwave therapy apparatus | 42 | 1978 | |
|
|
|||
| 4,301,801 Electrosurge failsafe system | 22 | 1979 | |
|
|
|||
| 5,290,283 Power supply apparatus for electrosurgical unit including electrosurgical-current waveform data storage | 50 | 1991 | |
|
|
|||
| 5,108,391 High-frequency generator for tissue cutting and for coagulating in high-frequency surgery | 328 | 1989 | |
|
|
|||
| 5,603,712 Bipola suction tonsillar dissector | 30 | 1995 | |
|
|
|||
| 5,556,397 Coaxial electrosurgical instrument | 194 | 1994 | |
|
|
|||
| 4,580,557 Surgical laser system with multiple output devices | 109 | 1983 | |
|
|
|||
| 4,474,179 Method and apparatus for the high frequency coagulation of protein for surgical purposes | 171 | 1982 | |
|
|
|||
| 5,304,214 Transurethral ablation catheter | 180 | 1992 | |
|
|
|||
| 5,117,978 Sheath for monopolar needle | 22 | 1991 | |
|
|
|||
| 4,688,569 Finger actuated surgical electrode holder | 77 | 1986 | |
|
|
|||
| 4,494,541 Electrosurgery safety monitor | 117 | 1981 | |
|
|
|||
| 5,281,213 Catheter for ice mapping and ablation | 470 | 1992 | |
|
|
|||
| 5,591,141 Suction coagulator bending tool | 27 | 1995 | |
|
|
|||
| 5,700,262 Bipolar electrode with fluid channels for less invasive neurosurgery | 216 | 1995 | |
|
|
|||
| 4,878,493 Hand-held diathermy apparatus | 54 | 1985 | |
|
|
|||
| 5,277,696 Medical high frequency coagulation instrument | 173 | 1992 | |
|
|
|||
| 4,590,934 Bipolar cutter/coagulator | 340 | 1983 | |
|
|
|||
| 4,955,377 Device and method for heating tissue in a patient's body | 438 | 1988 | |
|
|
|||
| 4,936,310 Catheter for intravascular pressure measurement | 40 | 1989 | |
|
|
|||
| 4,204,549 Coaxial applicator for microwave hyperthermia | 167 | 1977 | |
|
|
|||
| 4,534,347 Microwave coagulating scalpel | 77 | 1983 | |
|
|
|||
| 5,108,407 Method and apparatus for placement of an embolic coil | 347 | 1990 | |
|
|
|||
| 4,712,544 Electrosurgical generator | 70 | 1986 | |
|
|
|||
| 5,195,959 Electrosurgical device with suction and irrigation | 353 | 1991 | |
|
|
|||
| 5,540,682 Electrosurgery apparatus | 58 | 1995 | |
|
|
|||
| 5,833,689 Versatile electrosurgical instrument capable of multiple surgical functions | 28 | 1996 | |
|
|
|||
| 4,281,373 High frequency voltage generator | 93 | 1978 | |
|
|
|||
| 5,624,439 Method and apparatus for treatment of air way obstructions | 164 | 1995 | |
|
|
|||
| 5,626,560 Diathermic hand-held instrument with an endoscopic probe | 32 | 1995 | |
|
|
|||
| 5,320,627 Method and device for intracorporeal device for intracorporeal morselling of tissue and/or calculi during endoscopic surgical procedures | 102 | 1993 | |
|
|
|||
| 5,300,068 Electrosurgical apparatus | 246 | 1992 | |
|
|
|||
| 5,290,282 Coagulating cannula | 207 | 1992 | |
|
|
|||
| 5,569,242 Method and apparatus for controlled contraction of soft tissue | 513 | 1995 | |
|
|
|||
| 4,994,069 Vaso-occlusion coil and method | 744 | 1988 | |
|
|
|||
| 5,554,172 Directed energy surgical method and assembly | 74 | 1995 | |
|
|
|||
| 4,919,129 Extendable electrocautery surgery apparatus and method | 193 | 1987 | |
|
|
|||
| 4,425,015 Attachable, circuit-terminating, circuit board edge member | 51 | 1982 | |
|
|
|||
| 4,735,201 Optical fiber with detachable metallic tip for intravascular laser coagulation of arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas | 75 | 1986 | |
|
|
|||
| 2002/0191,558 Distributed soft handoff among IP-based base stations | 2001 | ||
|
|
|||
| 5,520,684 Transurethral radio frequency apparatus for ablation of the prostate gland and method | 295 | 1994 | |
|
|
|||
| 4,920,978 Method and apparatus for the endoscopic treatment of deep tumors using RF hyperthermia | 258 | 1988 | |
|
|
|||
| 5,395,363 Diathermy coagulation and ablation apparatus and method | 159 | 1993 | |
|
|
|||
| 4,200,104 Contact area measurement apparatus for use in electrosurgery | 168 | 1977 | |
|
|
|||
| 4,346,332 Frequency shift inverter for variable power control | 72 | 1980 | |
|
|
|||
| 5,037,379 Surgical tissue bag and method for percutaneously debulking tissue | 147 | 1990 | |
|
|
|||
| 5,472,441 Device for treating cancer and non-malignant tumors and methods | 495 | 1994 | |
|
|
|||
| 4,681,122 Stereotaxic catheter for microwave thermotherapy | 139 | 1985 | |
|
|
|||
| 5,342,391 Cleanable endoscopic surgical instrument | 52 | 1992 | |
|
|
|||
| 4,800,899 Apparatus for destroying cells in tumors and the like | 207 | 1986 | |
|
|
|||
| 4,769,005 Selective catheter guide | 207 | 1987 | |
|
|
|||
| 4,418,692 Device for treating living tissue with an electric current | 238 | 1978 | |
| 4,429,698 High frequency electromagnetic therapy apparatus | 29 | 1980 | |
| 4,429,478 Variable information sign | 34 | 1981 | |
| 4,492,231 Non-sticking electrocautery system and forceps | 463 | 1982 | |
| 4,476,862 Method of scleral marking | 285 | 1982 | |
| 4,524,770 Endoscope injection needle | 92 | 1983 | |
| 4,567,890 Pair of bipolar diathermy forceps for surgery | 247 | 1984 | |
| 4,674,499 Coaxial bipolar probe | 331 | 1985 | |
| 4,657,015 Control device for a high frequency surgical apparatus | 118 | 1985 | |
| 4,696,668 Double balloon nasobiliary occlusion catheter for treating gallstones and method of using the same | 124 | 1985 | |
| 4,805,616 Bipolar probes for ophthalmic surgery and methods of performing anterior capsulotomy | 225 | 1986 | |
| 4,886,074 Implantable lead assembly with extendable screw-in electrode | 99 | 1988 | |
| 5,019,076 Radio frequency surgical tool and method | 71 | 1989 | |
| 5,071,418 Electrocautery surgical scalpel | 165 | 1990 | |
| 5,122,138 Tissue vaporizing accessory and method for an endoscope | 281 | 1990 | |
| 5,217,459 Method and instrument for performing eye surgery | 149 | 1991 | |
| 5,300,069 Electrosurgical apparatus for laparoscopic procedures and method of use | 249 | 1992 | |
| 5,522,815 Integrated catheter for diverse in situ tissue therapy | 127 | 1994 | |
| 5,611,798 Resistively heated cutting and coagulating surgical instrument | 188 | 1995 | |
| 5,626,578 RF valvulotome | 230 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 17, 2013 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |