BRPI0416323A - instrumento eletrocirúrgico - Google Patents

instrumento eletrocirúrgico

Info

Publication number
BRPI0416323A
BRPI0416323A BRPI0416323-0A BRPI0416323A BRPI0416323A BR PI0416323 A BRPI0416323 A BR PI0416323A BR PI0416323 A BRPI0416323 A BR PI0416323A BR PI0416323 A BRPI0416323 A BR PI0416323A
Authority
BR
Brazil
Prior art keywords
approximately
metal body
materials
insulating layer
phase
Prior art date
Application number
BRPI0416323-0A
Other languages
English (en)
Inventor
Warren P Heim
James L Brassell
Michael D Olichney
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 BRPI0416323A publication Critical patent/BRPI0416323A/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
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00938—Material properties hydrophobic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2948—Sealing means, e.g. for sealing the interior from fluid entry
    • 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
    • A61B2018/00125—Coatings on the energy applicator with nanostructure
    • 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
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00601—Cutting
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

"INSTRUMENTO ELETROCIRúRGICO". Descreve-se um meio aperfeiçoado para isolar instrumentos eletrocirúrgicos e seu uso para instrumentos eletrocirúrgicos para reduzir a geração de fumaça em um local cirúrgico. Uma camada isolante é empregada, a qual pode incluir um material cerâmico que é substancialmente vedado com um revestimento compreendendo substancialmente um material baseado em polidiorganosiloxanos ou seus derivados que foi curado, preferivelmente com o auxílio de temperaturas superiores a aproximadamente 65,56<198>C (150<198>F). Em um aspecto da invenção, é empregada uma camada isolante tendo uma condutância térmica de aproximadamente 1,2 W/cm¬ 2¬K e um valor de resistência dielétrica de pelo menos aproximadamente 50 volts. Tal camada isolante pode compreender vantajosamente um ou mais materiais isolantes com poros que foram vedados de modo a impedir que materiais biológicos entrem nos poros, com tal material de vedação preferivelmente contendo um ou mais materiais de silicato ou materiais que formam silicatos. Em um outro aspecto da invenção, o corpo de metal é provido de modo a ter uma condutividade térmica de pelo menos aproximadamente 0,35 W/cmK, e pode compreender vantajosamente um metal selecionado a partir do grupo: ouro, prata, alumínio, cobre, tântalo, tungstênio, colúmbio e molibdênio. Em ainda um aspecto adicional, o corpo de metal pode incluir uma camada intermediária que define uma parte de borda periférica de seção transversal reduzida (por exemplo, aproximadamente 0,0254 mm (0,001 polegada) de espessura, ou menos) para transmissão de sinal eletrocirúrgico. Tal camada intermediária pode compreender um metal tendo um ponto de fusão de pelo menos aproximadamente 1426,6<198>C (2.600<198>F). O meio dissipador de calor pode ser incluído em várias modalidades para estabelecer um gradiente térmico afastado das partes funcionais do instrumento (isto é, mediante remoção de calor a partir do corpo de metal). Em uma modalidade, o meio dissipador de calor pode compreender um material de troca de fase que muda a partir de uma primeira fase para uma segunda fase mediante absorção de energia térmica a partir do corpo de metal.
BRPI0416323-0A 2003-11-10 2004-11-10 instrumento eletrocirúrgico BRPI0416323A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51870803P 2003-11-10 2003-11-10
PCT/US2004/037567 WO2005046739A2 (en) 2003-11-10 2004-11-10 Electrosurgical instrument

Publications (1)

Publication Number Publication Date
BRPI0416323A true BRPI0416323A (pt) 2007-01-09

Family

ID=34590292

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0416323-0A BRPI0416323A (pt) 2003-11-10 2004-11-10 instrumento eletrocirúrgico

Country Status (9)

Country Link
US (1) US7377919B2 (pt)
EP (1) EP1691706A4 (pt)
JP (1) JP2007510519A (pt)
CN (1) CN1901846A (pt)
AU (1) AU2004289315A1 (pt)
BR (1) BRPI0416323A (pt)
CA (1) CA2545361A1 (pt)
EA (1) EA200600951A1 (pt)
WO (1) WO2005046739A2 (pt)

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WO2005046739A2 (en) 2005-05-26
US7377919B2 (en) 2008-05-27
EA200600951A1 (ru) 2007-10-26
EP1691706A2 (en) 2006-08-23
CN1901846A (zh) 2007-01-24
WO2005046739A3 (en) 2006-02-16
CA2545361A1 (en) 2005-05-26
JP2007510519A (ja) 2007-04-26
EP1691706A4 (en) 2008-03-19
US20050154385A1 (en) 2005-07-14

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