DE69739572D1 - N und ablation - Google Patents

N und ablation

Info

Publication number
DE69739572D1
DE69739572D1 DE69739572T DE69739572T DE69739572D1 DE 69739572 D1 DE69739572 D1 DE 69739572D1 DE 69739572 T DE69739572 T DE 69739572T DE 69739572 T DE69739572 T DE 69739572T DE 69739572 D1 DE69739572 D1 DE 69739572D1
Authority
DE
Germany
Prior art keywords
tissue
electrosurgical
electric field
distal end
frequency voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69739572T
Other languages
English (en)
Inventor
Philip E Eggers
Hira V Thapliyal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arthrocare Corp
Original Assignee
Arthrocare Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arthrocare Corp filed Critical Arthrocare Corp
Application granted granted Critical
Publication of DE69739572D1 publication Critical patent/DE69739572D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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    • A61B18/1206—Generators therefor
    • A61B2018/1246—Generators therefor characterised by the output polarity
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    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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    • A61B18/14—Probes or electrodes therefor
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    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/37—Surgical systems with images on a monitor during operation
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    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0158—Tip steering devices with magnetic or electrical means, e.g. by using piezo materials, electroactive polymers, magnetic materials or by heating of shape memory materials
DE69739572T 1996-07-18 1997-07-15 N und ablation Expired - Lifetime DE69739572D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/687,792 US5843019A (en) 1992-01-07 1996-07-18 Shaped electrodes and methods for electrosurgical cutting and ablation
PCT/US1997/012266 WO1998003220A1 (en) 1996-07-18 1997-07-15 Shaped electrodes and methods for electrosurgical cutting and ablation

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US (1) US5843019A (de)
EP (1) EP0917482B1 (de)
JP (2) JP4756179B2 (de)
AT (1) ATE442094T1 (de)
AU (1) AU3663597A (de)
DE (1) DE69739572D1 (de)
WO (1) WO1998003220A1 (de)

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US5843019A (en) 1998-12-01
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EP0917482A1 (de) 1999-05-26
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