WO2002065890A3 - Improved electrosurgical instrument - Google Patents

Improved electrosurgical instrument Download PDF

Info

Publication number
WO2002065890A3
WO2002065890A3 PCT/US2001/049490 US0149490W WO02065890A3 WO 2002065890 A3 WO2002065890 A3 WO 2002065890A3 US 0149490 W US0149490 W US 0149490W WO 02065890 A3 WO02065890 A3 WO 02065890A3
Authority
WO
WIPO (PCT)
Prior art keywords
insulating layer
metal body
electrosurgical instrument
advantageously comprise
thermal
Prior art date
Application number
PCT/US2001/049490
Other languages
French (fr)
Other versions
WO2002065890A2 (en
Inventor
Warren Paul Heim
Michael Olichney
James L Brassell
Original Assignee
Team Medical Llc
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 Team Medical Llc filed Critical Team Medical Llc
Priority to JP2002565462A priority Critical patent/JP2004520906A/en
Priority to AU2002255454A priority patent/AU2002255454B2/en
Priority to EP01271063A priority patent/EP1355562B1/en
Priority to BR0116597-6A priority patent/BR0116597A/en
Priority to DE60130925T priority patent/DE60130925D1/en
Priority to EA200300739A priority patent/EA007972B1/en
Priority to CA002433413A priority patent/CA2433413A1/en
Priority to MXPA03005925A priority patent/MXPA03005925A/en
Publication of WO2002065890A2 publication Critical patent/WO2002065890A2/en
Publication of WO2002065890A3 publication Critical patent/WO2002065890A3/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
    • A61B18/1402—Probes for open surgery
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/0088—Material properties ceramic
    • 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
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • 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
    • A61B2018/00059—Material properties
    • A61B2018/00089—Thermal conductivity
    • A61B2018/00101—Thermal conductivity low, i.e. thermally 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
    • A61B2018/00107—Coatings on the energy applicator
    • 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
    • A61B2018/00107—Coatings on the energy applicator
    • A61B2018/00136—Coatings on the energy applicator with polymer
    • 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
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1412—Blade

Abstract

An improved electrosurgical instrument (10) and method is disclosed for reducing smoke generation at a surgical site. The electrosurgical instrument comprises a metal body (20) having an outer insulating layer (30) to reduce thermal/electrical discharge from non-functional portions of the instrument. In one aspect of the invention, an insulating layer having a thermal conductance of about 1.2 W/cm K and a dielectric withstand strength of at least about 50 volts is employed. Such insulating layer may advantageously comprise silicon and/or carbon. In another aspect of the invention, the metal body is provided to have a thermal conductivity of at least about .35 W/cm K, and may advantageously comprise a metal selected from the group: gold, silver, aluminum, copper, tantalum, tungsten, columbium, and molybdenum. In yet a further aspect, the metal body may include an intermediate layer that defines a peripheral edge portion of reduced cross-section (e.g., about .001 inches thick or less) for electrosurgical signal transmission.
PCT/US2001/049490 2000-12-29 2001-12-27 Improved electrosurgical instrument WO2002065890A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2002565462A JP2004520906A (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument
AU2002255454A AU2002255454B2 (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument
EP01271063A EP1355562B1 (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument
BR0116597-6A BR0116597A (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument
DE60130925T DE60130925D1 (en) 2000-12-29 2001-12-27 IMPROVED ELECTRO-SURGICAL INSTRUMENT
EA200300739A EA007972B1 (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument
CA002433413A CA2433413A1 (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument
MXPA03005925A MXPA03005925A (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/751,223 2000-12-29
US09/751,223 US6533781B2 (en) 1997-12-23 2000-12-29 Electrosurgical instrument

Publications (2)

Publication Number Publication Date
WO2002065890A2 WO2002065890A2 (en) 2002-08-29
WO2002065890A3 true WO2002065890A3 (en) 2003-03-27

Family

ID=25021036

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/049490 WO2002065890A2 (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument

Country Status (12)

Country Link
US (1) US6533781B2 (en)
EP (1) EP1355562B1 (en)
JP (1) JP2004520906A (en)
CN (2) CN1518432A (en)
AT (1) ATE375111T1 (en)
AU (1) AU2002255454B2 (en)
BR (1) BR0116597A (en)
CA (1) CA2433413A1 (en)
DE (1) DE60130925D1 (en)
EA (1) EA007972B1 (en)
MX (1) MXPA03005925A (en)
WO (1) WO2002065890A2 (en)

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Also Published As

Publication number Publication date
CA2433413A1 (en) 2002-08-29
JP2004520906A (en) 2004-07-15
CN1518432A (en) 2004-08-04
EA200300739A1 (en) 2004-02-26
US20010012936A1 (en) 2001-08-09
CN101069652A (en) 2007-11-14
EP1355562A4 (en) 2005-06-15
BR0116597A (en) 2005-06-28
EP1355562B1 (en) 2007-10-10
US6533781B2 (en) 2003-03-18
WO2002065890A2 (en) 2002-08-29
MXPA03005925A (en) 2004-01-26
AU2002255454B2 (en) 2007-05-24
ATE375111T1 (en) 2007-10-15
DE60130925D1 (en) 2007-11-22
EA007972B1 (en) 2007-02-27
EP1355562A2 (en) 2003-10-29

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