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1. WO1997025916 - EXPANDABLE-COLLAPSIBLE ELECTRODE STRUCTURES WITH ELECTRICALLY CONDUCTIVE WALLS

Publication Number WO/1997/025916
Publication Date 24.07.1997
International Application No. PCT/US1997/000698
International Filing Date 17.01.1997
Chapter 2 Demand Filed 12.08.1997
IPC
A61B 18/14 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
A61L 29/08 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
29Materials for catheters or for coating catheters
08Materials for coatings
A61L 29/14 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
29Materials for catheters or for coating catheters
14Materials characterised by their function or physical properties
A61L 31/10 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
31Materials for other surgical articles
08Materials for coatings
10Macromolecular materials
A61L 31/14 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
31Materials for other surgical articles
14Materials characterised by their function or physical properties
A61N 1/06 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
02Details
04Electrodes
06for high-frequency therapy
CPC
A61B 18/1492
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
1492having a flexible, catheter-like structure, e.g. for heart ablation
A61B 2018/00065
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00053Mechanical features of the instrument of device
00059Material properties
00065porous
A61B 2018/00083
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00053Mechanical features of the instrument of device
00059Material properties
00071Electrical conductivity
00083low, i.e. electrically insulating
A61B 2018/00095
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00053Mechanical features of the instrument of device
00059Material properties
00089Thermal conductivity
00095high, i.e. heat conducting
A61B 2018/00113
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00053Mechanical features of the instrument of device
00107Coatings on the energy applicator
00113with foam
A61B 2018/00148
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
00053Mechanical features of the instrument of device
00107Coatings on the energy applicator
00148with metal
Applicants
  • EP TECHNOLOGIES, INC. [US]/[US]
Inventors
  • WHAYNE, James, G.
  • JACKSON, Jerome
  • PANESCU, Dorin
  • KORDIS, Thomas, F.
  • THOMPSON, Russell, B.
  • OWENS, Patrick, M.
  • SWANSON, David, K.
  • MCGEE, David
  • FLEISCHMAN, Sidney, D.
Agents
  • BURSE, David, T.
Priority Data
08/628,98008.04.1996US
08/629,17108.04.1996US
08/629,36308.04.1996US
08/630,11308.04.1996US
08/630,71908.04.1996US
08/630,72108.04.1996US
60/010,22319.01.1996US
60/010,22519.01.1996US
60/010,35419.01.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) EXPANDABLE-COLLAPSIBLE ELECTRODE STRUCTURES WITH ELECTRICALLY CONDUCTIVE WALLS
(FR) STRUCTURES D'ELECTRODES A DILATATION-COMPRESSION, POURVUES DE PAROIS CONDUCTRICES
Abstract
(EN)
Systems for ablating body tissue comprise a family of electrode assemblies. Each electrode assembly (22) includes an extruded wall carrying an amount of electrically conductive material co-extruded within it. The extruded walls possess different electrical resistivity values by virtue of different amounts of electrically conductive material co-extruded within the walls. The systems also include means for specifying, among the family, use of the electrode assemblies according to a function that correlates desired tissue ablation effects with electrical resistivity values of the walls.
(FR)
L'invention porte sur des dispositifs destinés à l'ablation de tissus corporels comportant un jeu d'ensembles électrodes. Chaque ensemble électrode (22) est pourvu d'une paroi extrudée porteuse d'une certaine quantité d'un matériau conducteur y ayant été extrudé. Ces parois obtenues par extrusion sont dotées des valeurs de résistivité électrique différentes du fait de la diversité des quantités de matériau conducteurs co-extrudés dans lesdites parois. Les dispositifs comportent également des organes permettant de préciser, dans le jeu d'électrodes, l'utilisation des ensembles électrodes suivant une fonction qui établit une corrélation entre les effets souhaités d'une ablation de tissu et les valeurs de résistivité des parois.
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