US Patent No: 5,047,026

Number of patents in Portfolio can not be more than 2000

Electrosurgical implement for tunneling through tissue

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Abstract

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An electrosurgical implement for tunneling through tissue for effecting drainage of an organ or to restore patency to a blood vessel is described. The implement comprises a stainless steel, helically wound, wire body similar to a conventional guidewire of the type used in angiography, angioplasty or in implanting cardiac pacing leads. The exterior of the guidewire is coated with an insulating material, save for one or two convolutions at its distal end. A core wire having a Teflon.RTM. shrink tube surrounding it over substantially its entire length is disposed within the lumen of the helical guidewire and only a short segment of the distal end of the core wire is allowed to extend out from the distal end of the guidewire. This short segment is stripped free of insulation. The implement may be routed through an endoscope into the stomach or colon and when an RF voltage of an appropriate amplitude is connected across terminals electrically joined to the proximal ends of both of the guidewire and the core wire, an arc discharge is created when the distal end of the implement is brought into contact with tissue, thereby allowing the device to readily pierce this tissue. The same implement may also be used for restoring patency to a blocked blood vessel.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GYRUS MEDICAL, INC.MAPLE GROVE, MN37

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rydell, Mark A Golden Valley, MN 102 13700

Cited Art Landscape

Patent Info (Count) # Cites Year
 
EVEREST MEDICAL CORPORATION (2)
4,802,476 Electro-surgical instrument 97 1987
4,976,711 Ablation catheter with selectively deployable electrodes 588 1989
 
CORDIS CORPORATION (1)
4,920,980 Catheter with controllable tip 261 1987
 
EVERST MEDICAL CORPORATION (1)
4,674,498 Electro cautery surgical blade 88 1985
 
GYRUS MEDICAL, INC. (1)
4,905,691 Polypectome snare with bipolar electrodes 92 1989
 
MARVELL WORLD TRADE LTD. (1)
7,869,248 Bit line decoder architecture for NOR-type memory array 1 2008
 
OLYMPUS OPTICAL CO., LTD. (1)
4,311,143 Apparatus for resecting tissue inside the body cavity utilizing high-frequency currents 132 1979

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
ARTHROCARE CORPORATION (102)
7,758,537 Systems and methods for electrosurgical removal of the stratum corneum 9 1999
7,201,750 System for treating articular cartilage defects 89 1999
7,422,585 System for electrosurgical myocardial revascularization 19 1999
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6,632,220 Systems for electrosurgical tissue treatment in conductive fluid 131 1999
7,572,251 Systems and methods for electrosurgical tissue treatment 28 1999
6,632,193 Systems and methods for electrosurgical tissue treatment 242 2000
6,659,106 System and methods for electrosurgical treatment of turbinates 49 2000
7,131,969 Systems and methods for electrosurgical treatment of obstructive sleep disorders 140 2000
6,896,672 Methods for electrosurgical incisions on external skin surfaces 37 2000
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7,678,069 System for electrosurgical tissue treatment in the presence of electrically conductive fluid 17 2000
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6,726,684 Methods for electrosurgical spine surgery 107 2000
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6,805,130 Methods for electrosurgical tendon vascularization 42 2001
6,772,012 Methods for electrosurgical treatment of spinal tissue 127 2001
7,442,191 Systems and methods for electrosurgical treatment of turbinates 77 2001
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7,393,351 Apparatus and methods for treating cervical inter-vertebral discs 51 2002
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6,763,836 Methods for electrosurgical tendon vascularization 42 2002
7,435,247 Systems and methods for electrosurgical tissue treatment 67 2002
6,712,811 Methods for electrosurgical spine surgery 61 2002
7,004,941 Systems and methods for electrosurigical treatment of obstructive sleep disorders 99 2002
6,920,883 Methods and apparatus for skin treatment 133 2002
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7,331,957 Electrosurgical apparatus and methods for laparoscopy 43 2003
7,270,658 Systems and methods for electrosurgery 132 2003
7,192,428 Systems for epidermal tissue ablation 87 2003
7,094,215 Systems and methods for electrosurgical tissue contraction 115 2003
7,104,986 Intervertebral disc replacement method 97 2003
7,357,798 Systems and methods for electrosurgical prevention of disc herniations 66 2003
7,217,268 Method for electrosurgical tissue treatment near a patient's heart 99 2003
7,318,823 Methods for repairing damaged intervertebral discs 188 2003
6,960,204 Electrosurgical method using laterally arranged active electrode 103 2003
7,276,063 Instrument for electrosurgical tissue treatment 81 2003
RE40156 Methods for repairing damaged intervertebral discs 106 2003
7,241,293 Electrode screen enhanced electrosurgical apparatus and methods for ablating tissue 67 2003
7,297,143 Temperature indicating electrosurgical apparatus and methods 62 2004
7,387,625 Methods and apparatus for treating intervertebral discs 72 2004
8,012,153 Rotary electrosurgical apparatus and methods thereof 0 2004
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7,419,488 Electrosurgical probe with movable return electrode and methods related thereto 62 2005
7,491,200 Method for treating obstructive sleep disorder includes removing tissue from base of tongue 28 2005
7,449,021 Systems and methods for electrosurgical tissue contraction within the spine 31 2005
7,704,249 Apparatus and methods for electrosurgical ablation and resection of target tissue 11 2005
7,892,230 Electrosurgical device having planar vertical electrode and related methods 4 2005
7,632,267 Fuse-electrode electrosurgical apparatus 17 2005
7,270,659 Methods for electrosurgical treatment of spinal tissue 94 2005
7,297,145 Bipolar electrosurgical clamp for removing and modifying tissue 58 2005
7,169,143 Methods for electrosurgical tissue treatment in electrically conductive fluid 94 2005
7,691,101 Electrosurgical method and system for treating foot ulcer 24 2006
7,879,034 Internally located return electrode electrosurgical apparatus, system and method 16 2006
7,331,956 Methods and apparatus for treating back pain 67 2006
7,429,260 Systems and methods for electrosurgical tissue contraction within the spine 44 2006
7,445,618 Methods for tissue ablation using pulsed energy 42 2007
7,468,059 System and method for epidermal tissue ablation 44 2007
7,901,403 Internally located return electrode electrosurgical apparatus, system and method 15 2007
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7,507,236 System and method for electrosurgical cutting and ablation 36 2007
8,114,071 Hard tissue ablation system 0 2007
7,988,689 Electrosurgical apparatus and methods for treatment and removal of tissue 4 2007
8,663,216 Instrument for electrosurgical tissue treatment 0 2007
7,717,912 Bipolar electrosurgical clamp for removing and modifying tissue 2 2007
8,192,424 Electrosurgical system with suction control apparatus, system and method 23 2008
7,824,405 Electrosurgical apparatus and methods for laparoscopy 10 2008
7,794,456 Systems and methods for electrosurgical intervertebral disc replacement 2 2008
8,747,400 Systems and methods for screen electrode securement 0 2008
7,819,863 System and method for electrosurgical cutting and ablation 7 2008
8,355,799 Systems and methods for limiting joint temperature 5 2008
8,574,187 System and method of an electrosurgical controller with output RF energy control 1 2009
8,663,152 Electrosurgical method and system for treating foot ulcer 0 2009
8,663,153 Electrosurgical method and system for treating foot ulcer 0 2009
8,663,154 Electrosurgical method and system for treating foot ulcer 0 2009
8,636,685 Electrosurgical method and system for treating foot ulcer 0 2009
8,257,350 Method and system of an electrosurgical controller with wave-shaping 3 2009
8,323,279 System, method and apparatus for electrosurgical instrument with movable fluid delivery sheath 10 2009
8,372,067 Electrosurgery irrigation primer systems and methods 2 2009
8,747,399 Method and system of reduction of low frequency muscle stimulation during electrosurgical procedures 0 2010
8,801,705 Electrosurgical method and apparatus for removing tissue within a bone body 0 2010
8,696,659 Electrosurgical system and method having enhanced temperature measurement 0 2010
7,951,141 Systems and methods for electrosurgical intervertebral disc replacement 2 2010
8,685,018 Electrosurgical wand and related method and system 0 2010
8,568,405 Electrosurgical wand and related method and system 0 2010
D658760 Wound care electrosurgical wand 9 2010
8,747,401 Systems and methods for turbinate reduction 0 2011
8,292,887 Internally located return electrode electrosurgical apparatus, system and method 10 2011
8,444,638 Hard tissue ablation system 0 2012
 
BOSTON SCIENTIFIC SCIMED, INC. (31)
5,338,295 Dilatation catheter with polyimide-encased stainless steel braid proximal shaft 54 1992
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6,893,421 Catheter shaft assembly 12 2000
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6,595,958 Tortuous path injection device and method 27 2000
6,582,400 Variable tip catheter 23 2000
6,530,914 Deflectable tip guide in guide system 37 2000
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7,399,294 Controlled depth injection device 6 2003
7,044,934 Tortuous path injection device 2 2003
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6,953,466 Methods for delivering a therapeutic implant to tissue 14 2004
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7,854,743 Catheter for the delivery of therapeutic agents to tissues 0 2005
7,832,406 Percutaneous myocardial revascularization 2 2005
7,544,183 Elongated medical device with functional distal end 0 2006
7,625,356 Tortuous path injection device 0 2006
 
GYRUS MEDICAL LIMITED (20)
6,293,942 Electrosurgical generator method 305 1996
6,015,406 Electrosurgical instrument 270 1996
6,004,319 Electrosurgical instrument 304 1996
6,027,501 Electrosurgical instrument 285 1996
6,013,076 Electrosurgical instrument 207 1996
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6,093,186 Electrosurgical generator and system 316 1997
6,416,509 Electrosurgical generator and system 288 1998
6,090,106 Electrosurgical instrument 234 1998
6,056,746 Electrosurgical instrument 331 1998
6,039,734 Electrosurgical hand-held battery-operated instrument 203 1998
6,364,877 Electrosurgical generator and system 235 1998
6,306,134 Electrosurgical generator and system 300 1998
6,261,286 Electrosurgical generator and system 270 1998
6,210,405 Under water treatment 75 1998
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6,174,308 Electrosurgical instrument 106 1999
6,234,178 Electrosurgical instrument 150 1999
6,780,180 Electrosurgical instrument 181 2000
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ATRICURE, INC. (5)
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APPLIED MEDICAL RESOURCES CORPORATION (4)
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BRONCUS MEDICAL INC. (3)
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SCIMED LIFE SYSTEMS, INC. (3)
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American Cardiac Ablation Co., Inc. (1)
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AthroCare Corporation (1)
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BAYLIS MEDICAL COMPANY INC. (1)
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BIOLITEC PHARMA MARKETING LTD. (1)
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Other [Check patent profile for assignment information] (2)
7,127,295 Device and method for placement of electrodes in the GI tract 5 2005
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