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 13354

Cited Art Landscape

Patent Info (Count) # Cites Year
 
EVEREST MEDICAL CORPORATION (2)
4,802,476 Electro-surgical instrument 96 1987
4,976,711 Ablation catheter with selectively deployable electrodes 577 1989
 
CORDIS CORPORATION (1)
4,920,980 Catheter with controllable tip 258 1987
 
EVERST MEDICAL CORPORATION (1)
4,674,498 Electro cautery surgical blade 86 1985
 
GYRUS MEDICAL, INC. (1)
4,905,691 Polypectome snare with bipolar electrodes 91 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 129 1979

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
ARTHROCARE CORPORATION (101)
7,758,537 Systems and methods for electrosurgical removal of the stratum corneum 7 1999
7,201,750 System for treating articular cartilage defects 84 1999
7,422,585 System for electrosurgical myocardial revascularization 16 1999
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6,632,220 Systems for electrosurgical tissue treatment in conductive fluid 127 1999
7,572,251 Systems and methods for electrosurgical tissue treatment 26 1999
6,632,193 Systems and methods for electrosurgical tissue treatment 238 2000
6,659,106 System and methods for electrosurgical treatment of turbinates 42 2000
7,131,969 Systems and methods for electrosurgical treatment of obstructive sleep disorders 133 2000
6,896,672 Methods for electrosurgical incisions on external skin surfaces 34 2000
6,595,990 Systems and methods for electrosurgical tissue revascularization 63 2000
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 98 2000
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7,179,255 Methods for targeted electrosurgery on contained herniated discs 217 2000
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6,770,071 Bladed electrosurgical probe 147 2001
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6,805,130 Methods for electrosurgical tendon vascularization 40 2001
6,772,012 Methods for electrosurgical treatment of spinal tissue 121 2001
7,442,191 Systems and methods for electrosurgical treatment of turbinates 71 2001
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7,393,351 Apparatus and methods for treating cervical inter-vertebral discs 42 2002
6,837,884 Electrosurgical apparatus having compound return electrode 53 2002
6,763,836 Methods for electrosurgical tendon vascularization 39 2002
7,435,247 Systems and methods for electrosurgical tissue treatment 64 2002
6,712,811 Methods for electrosurgical spine surgery 57 2002
7,004,941 Systems and methods for electrosurigical treatment of obstructive sleep disorders 97 2002
6,920,883 Methods and apparatus for skin treatment 127 2002
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7,331,957 Electrosurgical apparatus and methods for laparoscopy 39 2003
7,270,658 Systems and methods for electrosurgery 127 2003
7,192,428 Systems for epidermal tissue ablation 85 2003
7,094,215 Systems and methods for electrosurgical tissue contraction 113 2003
7,104,986 Intervertebral disc replacement method 94 2003
7,357,798 Systems and methods for electrosurgical prevention of disc herniations 65 2003
7,217,268 Method for electrosurgical tissue treatment near a patient's heart 95 2003
7,318,823 Methods for repairing damaged intervertebral discs 180 2003
6,960,204 Electrosurgical method using laterally arranged active electrode 101 2003
7,276,063 Instrument for electrosurgical tissue treatment 78 2003
RE40156 Methods for repairing damaged intervertebral discs 103 2003
7,241,293 Electrode screen enhanced electrosurgical apparatus and methods for ablating tissue 64 2003
7,297,143 Temperature indicating electrosurgical apparatus and methods 59 2004
7,387,625 Methods and apparatus for treating intervertebral discs 69 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 61 2005
7,491,200 Method for treating obstructive sleep disorder includes removing tissue from base of tongue 27 2005
7,449,021 Systems and methods for electrosurgical tissue contraction within the spine 30 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 15 2005
7,270,659 Methods for electrosurgical treatment of spinal tissue 89 2005
7,297,145 Bipolar electrosurgical clamp for removing and modifying tissue 56 2005
7,169,143 Methods for electrosurgical tissue treatment in electrically conductive fluid 92 2005
7,691,101 Electrosurgical method and system for treating foot ulcer 22 2006
7,879,034 Internally located return electrode electrosurgical apparatus, system and method 15 2006
7,331,956 Methods and apparatus for treating back pain 65 2006
7,429,260 Systems and methods for electrosurgical tissue contraction within the spine 41 2006
7,445,618 Methods for tissue ablation using pulsed energy 39 2007
7,468,059 System and method for epidermal tissue ablation 42 2007
7,901,403 Internally located return electrode electrosurgical apparatus, system and method 14 2007
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7,507,236 System and method for electrosurgical cutting and ablation 32 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 1 2007
8,192,424 Electrosurgical system with suction control apparatus, system and method 19 2008
7,824,405 Electrosurgical apparatus and methods for laparoscopy 9 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 4 2008
8,574,187 System and method of an electrosurgical controller with output RF energy control 0 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 9 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
8,696,659 Electrosurgical system and method having enhanced temperature measurement 0 2010
7,951,141 Systems and methods for electrosurgical intervertebral disc replacement 1 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 8 2011
8,444,638 Hard tissue ablation system 0 2012
 
BOSTON SCIENTIFIC SCIMED, INC. (31)
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6,093,185 Expandable PMR device and method 60 1998
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6,893,421 Catheter shaft assembly 11 2000
6,613,017 Controlled depth injection device and method 19 2000
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 36 2000
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6,616,626 Infusion devices and method 30 2000
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7,044,934 Tortuous path injection device 2 2003
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7,832,406 Percutaneous myocardial revascularization 1 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 293 1996
6,015,406 Electrosurgical instrument 258 1996
6,004,319 Electrosurgical instrument 290 1996
6,027,501 Electrosurgical instrument 271 1996
6,013,076 Electrosurgical instrument 198 1996
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6,093,186 Electrosurgical generator and system 303 1997
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6,090,106 Electrosurgical instrument 223 1998
6,056,746 Electrosurgical instrument 318 1998
6,039,734 Electrosurgical hand-held battery-operated instrument 194 1998
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6,306,134 Electrosurgical generator and system 289 1998
6,261,286 Electrosurgical generator and system 259 1998
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6,416,490 PMR device and method 33 1998
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American Cardiac Ablation Co., Inc. (1)
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AthroCare Corporation (1)
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Other [Check patent profile for assignment information] (1)
7,127,295 Device and method for placement of electrodes in the GI tract 5 2005

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