WO2002078515A3 - Endoscopic ablation system with flexible coupling - Google Patents

Endoscopic ablation system with flexible coupling Download PDF

Info

Publication number
WO2002078515A3
WO2002078515A3 PCT/US2002/010185 US0210185W WO02078515A3 WO 2002078515 A3 WO2002078515 A3 WO 2002078515A3 US 0210185 W US0210185 W US 0210185W WO 02078515 A3 WO02078515 A3 WO 02078515A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
ablation system
support member
sheath
endoscopic ablation
Prior art date
Application number
PCT/US2002/010185
Other languages
French (fr)
Other versions
WO2002078515A2 (en
Inventor
Gary L Long
Original Assignee
Ethicon Endo Surgery Inc
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 Ethicon Endo Surgery Inc filed Critical Ethicon Endo Surgery Inc
Priority to EP02757924A priority Critical patent/EP1383440A4/en
Priority to JP2002576790A priority patent/JP2004532064A/en
Priority to CA002442395A priority patent/CA2442395A1/en
Publication of WO2002078515A2 publication Critical patent/WO2002078515A2/en
Publication of WO2002078515A3 publication Critical patent/WO2002078515A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • 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
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/00296—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00071—Electrical conductivity
    • A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00273—Anchoring means for temporary attachment of a device to tissue
    • A61B2018/00291—Anchoring means for temporary attachment of a device to tissue using suction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00482—Digestive system
    • A61B2018/00488—Esophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • 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
    • A61B2018/1475—Electrodes retractable in or deployable from a housing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • 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
    • A61B2018/1495—Electrodes being detachable from a support structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • 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
    • A61B2018/1497—Electrodes covering only part of the probe circumference

Abstract

An endoscopic ablation system is provided for use with a flexible endoscope for the ablative treatment of diseased tissue on the interior lining a body lumen. The endoscopic ablation system includes a support member for supporting at least two electrodes that can be electrically connected to a RF generator. The electrodes can have a shape, size, and spacing that provide ablation between the electrodes, while minimizing ablation of tissue directly underneath the electrodes. The endoscopic ablation system can also include a sheath that fits over a flexible endoscope. A flexible coupling joins the support member to the sheath to facilitate intubation. The support member can also includes a side opening, and the sheath includes a seal, so that the aspiration means of the endoscope may be used to evacuate the air from inside the body lumen and pull the tissue to be treated into intimate contact with the electrodes.
PCT/US2002/010185 2001-03-30 2002-03-29 Endoscopic ablation system with flexible coupling WO2002078515A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02757924A EP1383440A4 (en) 2001-03-30 2002-03-29 Endoscopic ablation system with flexible coupling
JP2002576790A JP2004532064A (en) 2001-03-30 2002-03-29 Endoscope ablation system with flexible joint
CA002442395A CA2442395A1 (en) 2001-03-30 2002-03-29 Endoscopic ablation system with flexible coupling

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US28000901P 2001-03-30 2001-03-30
US60/280,009 2001-03-30
US10/105,610 2002-03-25
US10/105,610 US20020177847A1 (en) 2001-03-30 2002-03-25 Endoscopic ablation system with flexible coupling

Publications (2)

Publication Number Publication Date
WO2002078515A2 WO2002078515A2 (en) 2002-10-10
WO2002078515A3 true WO2002078515A3 (en) 2003-11-06

Family

ID=26802750

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2002/010185 WO2002078515A2 (en) 2001-03-30 2002-03-29 Endoscopic ablation system with flexible coupling
PCT/US2002/009975 WO2002078527A2 (en) 2001-03-30 2002-03-29 Endoscopic ablation system with sealed sheath

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2002/009975 WO2002078527A2 (en) 2001-03-30 2002-03-29 Endoscopic ablation system with sealed sheath

Country Status (5)

Country Link
US (1) US20020177847A1 (en)
EP (1) EP1383440A4 (en)
JP (1) JP2004532064A (en)
CA (1) CA2442395A1 (en)
WO (2) WO2002078515A2 (en)

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US20020177847A1 (en) 2002-11-28
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WO2002078527A2 (en) 2002-10-10
EP1383440A2 (en) 2004-01-28
EP1383440A4 (en) 2005-12-07
WO2002078515A2 (en) 2002-10-10
CA2442395A1 (en) 2002-10-10

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