DE69739572D1 - N und ablation - Google Patents
N und ablationInfo
- 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
Links
Classifications
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- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- 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
- A61B18/1206—Generators therefor
- A61B2018/1273—Generators therefor including multiple generators in one device
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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
- A61B18/14—Probes or electrodes therefor
- A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
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- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- 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
- A61B18/14—Probes or electrodes therefor
- A61B2018/1472—Probes or electrodes therefor for use with liquid electrolyte, e.g. virtual electrodes
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- A—HUMAN NECESSITIES
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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
- A61B18/14—Probes or electrodes therefor
- A61B18/16—Indifferent or passive electrodes for grounding
- A61B2018/162—Indifferent or passive electrodes for grounding located on the probe body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- 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
- A61B18/14—Probes or electrodes therefor
- A61B18/16—Indifferent or passive electrodes for grounding
- A61B2018/165—Multiple indifferent electrodes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
- A61B2090/378—Surgical systems with images on a monitor during operation using ultrasound
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
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 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69739572D1 true DE69739572D1 (de) | 2009-10-22 |
Family
ID=24761859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69739572T Expired - Lifetime DE69739572D1 (de) | 1996-07-18 | 1997-07-15 | N und ablation |
Country Status (7)
Country | Link |
---|---|
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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ATE442094T1 (de) | 2009-09-15 |
US5843019A (en) | 1998-12-01 |
EP0917482B1 (de) | 2009-09-09 |
JP2001522252A (ja) | 2001-11-13 |
EP0917482A1 (de) | 1999-05-26 |
AU3663597A (en) | 1998-02-10 |
EP0917482A4 (de) | 1999-12-22 |
JP2008220988A (ja) | 2008-09-25 |
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