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1. WO2000029062 - METHOD OF MANUFACTURING CELLULOSIC STRUCTURES, AND ELECTRODE ASSEMBLY COMPRISING AN EXPANDABLE-COLLAPSIBLE BODY

Publication Number WO/2000/029062
Publication Date 25.05.2000
International Application No. PCT/EP1999/008729
International Filing Date 12.11.1999
Chapter 2 Demand Filed 09.06.2000
IPC
A61B 18/08 2006.1
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
08by means of electrically-heated probes
A61B 18/14 2006.1
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
A61N 1/06 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
02Details
04Electrodes
06for high-frequency therapy
CPC
A61B 18/08
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
08by means of electrically-heated probes
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 2017/003
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
00234for minimally invasive surgery
00292mounted on or guided by flexible, e.g. catheter-like, means
003Steerable
A61B 2017/00526
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
00526Methods of manufacturing
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 2018/00214
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
00214Expandable means emitting energy, e.g. by elements carried thereon
Applicants
  • BOSTON SCIENTIFIC LIMITED [IE]/[BB]
Inventors
  • WHAYNE, James, G.
  • YANG, Yi
  • OWENS, Patrick, M.
  • SWANSON, David, K.
Agents
  • VIERING, JENTSCHURA & PARTNER
Priority Data
09/189,91812.11.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF MANUFACTURING CELLULOSIC STRUCTURES, AND ELECTRODE ASSEMBLY COMPRISING AN EXPANDABLE-COLLAPSIBLE BODY
(FR) STRUCTURE D'ELECTRODE PERMETTANT DE CHAUFFER ET D'EFFECTUER L'ABLATION D'UN TISSU ET SON PROCEDE DE FABRICATION DE D'ASSEMBLAGE
Abstract
(EN)
Methods of manufacturing cellulosic structures, e.g., for use in expandable-collapsible electrode assemblies for diagnostic and/or therapeutic electrophysiology devices, are disclosed. One such preferred method includes providing a mandrel having a head portion and a neck portion, the head portion having an outer circumference greater than the neck portion, dipping the mandrel into a cellulosic substance, curing the cellulosic substance, and separating the mandrel from the cured cellulosic substance. According to a separate aspect of the invention, an electrode assembly is provided, which includes an expandable-collapsible body and a biasing device adapted to resiliently urge a distal portion of the body against adjacent body tissue.
(FR)
L'invention concerne des procédés de fabrication de structures cellulosiques, telles que celles utilisées par exemple dans des ensembles d'électrode pouvant être déployés/repliés, dans des dispositifs d'électrophysiologie diagnostique et/ou thérapeutique. Un procédé préféré consiste à fournir un mandrin pourvu d'une partie tête et d'une partie col, la partie tête présentant une circonférence extérieure supérieure à celle de la partie col; à tremper ledit mandrin dans une substance cellulosique; à faire durcir ladite substance cellulosique; et à séparer le mandrin de la substance cellulosique durcie.
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