• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SURGICAL INSTRUMENT HAVING SELF-REGULATED ELECTRICAL SKIN-DEPTH HEATING OF ITS CUTTING EDGE AND METHOD OF USING THE SAME The cutting edge of a scalpel blade is resistively heated to a preselected constant temperature range by conduction of high frequency electrical currents within variable skin depths of a ferromagnetic conductor that is disposed on the blade in the region of the cutting edge.
    公开号:SU720995A3
    申请号:SU762333504
    申请日:1976-03-12
    公开日:1980-03-05
    发明作者:Фрэнсис Шоу Роберт
    申请人:Shaw Robert F；
    IPC主号:
    专利说明:

    one
    The invention relates to medical technology, namely, to surgical instruments.
    The surgical cutting tool is known, which contains a working tip with a cutting edge, a heating element, conductors and a handle 1).
    However, when using this tool, cauterization of small blood vessels is carried out with low efficiency, which leads to an increase in operating time.
    The aim of the invention is to increase the efficiency of use of the tool.
    The goal is achieved by the fact that the heating element of the tool is located along the non-conductive cutting edge of the working tip and is made of a material whose magnetic permeability is backward proportional to its temperature.
    In addition, the working tip is made of ceramics on the basis of beta alumina.
    In addition, the heating element is made of a ferromagnetic material based on iron, nickel or cobalt or their alloys, point
    2
    Curie which lies in the range from 300 to 1000 ° C.
    Figure 1 shows schematically a surgical cutting tool; in fig. 2 - section aa of FIG.
    The tool contains a working tip 1 with a cutting edge 2, a heating element 3, a handle 4 and conductors 5 for connecting the heating element to the power supply 6. The working tip 1 is made of beta alumina-based ceramics and is an insulating element. The heating element 3 is located along the non-conducting cutting edge 2 of the working tip and is made of ferromagnetic material based on iron, nickel or cobalt or their alloys, point
    o Curie which lies in the range from 300 to. Moreover, the magnetic permeability of this ferromagnetic material is inversely proportional to its temperature. Also outdoor
    5, the surface of the heating element 3 is covered with a layer of insulation 7, which protects the fabric from the effects of electric current. -,
    When the tool operates on the heating element 3 from source 6
    权利要求:
    Claims (3)
    [1]
    Claim.
    Surgical cutting instrument-containing working tip Heater o t1 ,. a component with a cutting edge, an element, conductors and a handle, characterized in that, in order to increase the efficiency of using the tool, the heating element is located along the non-conductive cutting edge of the working tip and is made of a material whose magnetic permeability is inversely proportional to its temperature. .
    [2]
    2. The tool according to claim 1, about l and otchayuschey ..... with the fact that the working tip is made of ceramic based on beta-alumina.
    [3]
    3. The tool according to claim 1, characterized in that the heating element is made of a ferromagnetic material based on iron, nickel or cobalt or their alloys, the Curie point of which lies in the range from 300 to 1000 ° C.
    类似技术:
    公开号 | 公开日 | 专利标题
    US4091813A|1978-05-30|Surgical instrument having self-regulated electrical proximity heating of its cutting edge and method of using the same
    US4185632A|1980-01-29|Surgical instrument having self-regulated electrical skin-depth heating of its cutting edge and method of using the same
    CA1083457A|1980-08-12|Surgical instrument having self-regulated electrical induction heating of its cutting edge and method of using the same
    US3768482A|1973-10-30|Surgical cutting instrument having electrically heated cutting edge
    US5451224A|1995-09-19|Apparatus for radio frequency bipolar electrosurgery
    USRE29088E|1976-12-28|Surgical cutting instrument having electrically heated cutting edge
    US4364390A|1982-12-21|Surgical instrument having self-regulating dielectric heating of its cutting edge and method of using the same
    US4232676A|1980-11-11|Surgical cutting instrument
    US5911719A|1999-06-15|Resistively heating cutting and coagulating surgical instrument
    US4589411A|1986-05-20|Electrosurgical spark-gap cutting blade
    JP2558584B2|1996-11-27|Instruments for cutting, coagulating and removing body tissue
    US4938761A|1990-07-03|Bipolar electrosurgical forceps
    US4207896A|1980-06-17|Surgical instrument having self-regulating dielectric heating of its cutting edge
    US6059781A|2000-05-09|Electroconvergent cautery system
    US4161950A|1979-07-24|Electrosurgical knife
    US6443948B1|2002-09-03|Plasma knife
    KR19990082157A|1999-11-25|Surgical Electric Cutting Device
    ES8502307A1|1984-12-16|Autoregulating electrically shielded heater.
    SE8503532D0|1985-07-19|ELECTRICAL SURGICAL TOOL
    CA2128996A1|1991-09-16|Electrosurgical Apparatus
    ES8702639A1|1986-12-16|Flexible brazing wand.
    SU720995A3|1980-03-05|Surgical cutting tool
    SU849983A3|1981-07-23|Electrosurgical tool
    GB2022974A|1979-12-19|Improved electrically heated apparatus and method and material
    US3941966A|1976-03-02|RF Power transmission line
    同族专利:
    公开号 | 公开日
    ZA761133B|1977-02-23|
    DE2609327C3|1979-07-05|
    AU500503B2|1979-05-24|
    SE7602291L|1976-09-15|
    JPS6128339B2|1986-06-30|
    SE412842B|1980-03-24|
    FR2303518A1|1976-10-08|
    NL7602177A|1976-09-16|
    CA1077366A|1980-05-13|
    AU1171776A|1977-09-08|
    GB1546627A|1979-05-23|
    DE2609327B2|1978-11-09|
    DE2609327A1|1976-09-30|
    JPS51122987A|1976-10-27|
    BR7601547A|1976-09-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3234356A|1963-05-07|1966-02-08|Raymond F Babb|Electrically heated medical implement|
    US3826263A|1970-08-13|1974-07-30|R Shaw|Electrically heated surgical cutting instrument|
    US3768482A|1972-10-10|1973-10-30|R Shaw|Surgical cutting instrument having electrically heated cutting edge|GB2022974A|1978-04-20|1979-12-19|Shaw R F|Improved electrically heated apparatus and method and material|
    JPH08500025A|1992-05-01|1996-01-09|ヘモスタティクスコーポレイション|Surgical instrument with self-regulating heater|
    EP1815807B1|2004-09-22|2017-11-22|Olympus Corporation|Organic tissue sampling device|
    DE102006005224B4|2006-01-31|2008-09-04|P + P Medical Gmbh|Device for separating an existing from an electrically conductive material Gelenkendoprothese of biological and / or biocompatible materials|
    US8430870B2|2009-04-17|2013-04-30|Domain Surgical, Inc.|Inductively heated snare|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/558,335|US4185632A|1970-08-13|1975-03-14|Surgical instrument having self-regulated electrical skin-depth heating of its cutting edge and method of using the same|
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