BR0116597A - Instrumento eletrocirúrgico aperfeiçoado - Google Patents

Instrumento eletrocirúrgico aperfeiçoado

Info

Publication number
BR0116597A
BR0116597A BR0116597-6A BR0116597A BR0116597A BR 0116597 A BR0116597 A BR 0116597A BR 0116597 A BR0116597 A BR 0116597A BR 0116597 A BR0116597 A BR 0116597A
Authority
BR
Brazil
Prior art keywords
metal body
thermal
insulating layer
instrument
metal
Prior art date
Application number
BR0116597-6A
Other languages
English (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
Publication of BR0116597A publication Critical patent/BR0116597A/pt

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

"INSTRUMENTO ELETROCIRúRGICO APERFEIçOADO". Revela-se um instrumento eletrocirúrgico aperfeiçoado e método para reduzir a produção de fumaça em um local de cirurgia. O instrumento eletrocirúrgico compreende um corpo de metal que possui uma camada isolante externa para reduzir a descarga térmica/elétrica vinda de partes não-funcionais do instrumento. Em um aspecto da invenção, emprega-se uma camada isolante que possui condução térmica por volta de 1,2 X 10^ 4^ W/m ^ 2^ <198>K e uma resistência dielétrica suportável de pelo menos aproximadamente 50 volts. Tal camada isolante poderá compreender, de maneira vantajosa, silício e/ou carbono. Em um outro aspecto da invenção, o corpo de metal é projetado de forma a apresentar uma condutividade térmica de pelo menos aproximadamente 0,35 X 10^ 2^ W/m <198>K e poderá compreender, de forma vantajosa, um metal selecionado do grupo: ouro, prata, alumínio, cobre, tântalo, tungstênio, colúmbio e molibidênio. Ainda em um outro aspecto, o corpo de metal poderá incluir uma camada intermediária que defina uma porção de borda periférica de seção transversal reduzida (por exemplo, com uma espessura de aproximadamente 2,54 x 10^ -5^ metros ou menos) para a transmissão de sinal eletrocirúrgico. Tal camada intermediária poderá compreender um metal que tenha um ponto de fusão de pelo menos aproximadamente 1699,82 <198>K. Meios dissipadores de calor poderão ser incluídos nas várias modalidades de forma a estabelecer um gradiente térmico afastado das partes funcionais do instrumento (isto é, ao remover o calor do corpo de metal) . Em uma modalidade, o meio dissipador de calor poderá englobar um material de mudança de fase que mude de uma primeira fase para uma segunda fase mediante a absorção da energia térmica vinda do corpo de metal.
BR0116597-6A 2000-12-29 2001-12-27 Instrumento eletrocirúrgico aperfeiçoado BR0116597A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/751,223 US6533781B2 (en) 1997-12-23 2000-12-29 Electrosurgical instrument
PCT/US2001/049490 WO2002065890A2 (en) 2000-12-29 2001-12-27 Improved electrosurgical instrument

Publications (1)

Publication Number Publication Date
BR0116597A true BR0116597A (pt) 2005-06-28

Family

ID=25021036

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0116597-6A BR0116597A (pt) 2000-12-29 2001-12-27 Instrumento eletrocirúrgico aperfeiçoado

Country Status (12)

Country Link
US (1) US6533781B2 (pt)
EP (1) EP1355562B1 (pt)
JP (1) JP2004520906A (pt)
CN (2) CN101069652A (pt)
AT (1) ATE375111T1 (pt)
AU (1) AU2002255454B2 (pt)
BR (1) BR0116597A (pt)
CA (1) CA2433413A1 (pt)
DE (1) DE60130925D1 (pt)
EA (1) EA007972B1 (pt)
MX (1) MXPA03005925A (pt)
WO (1) WO2002065890A2 (pt)

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Also Published As

Publication number Publication date
DE60130925D1 (de) 2007-11-22
CN1518432A (zh) 2004-08-04
AU2002255454B2 (en) 2007-05-24
EP1355562A2 (en) 2003-10-29
CN101069652A (zh) 2007-11-14
WO2002065890A2 (en) 2002-08-29
WO2002065890A3 (en) 2003-03-27
US6533781B2 (en) 2003-03-18
EP1355562A4 (en) 2005-06-15
EA200300739A1 (ru) 2004-02-26
US20010012936A1 (en) 2001-08-09
EP1355562B1 (en) 2007-10-10
CA2433413A1 (en) 2002-08-29
MXPA03005925A (es) 2004-01-26
JP2004520906A (ja) 2004-07-15
ATE375111T1 (de) 2007-10-15
EA007972B1 (ru) 2007-02-27

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