Ablation probe for delivering fluid through porous structure
    142.
    发明申请
    Ablation probe for delivering fluid through porous structure 有权
    用于通过多孔结构输送流体的消融探针

    公开(公告)号:US20050171526A1

    公开(公告)日:2005-08-04

    申请号:US10772040

    申请日:2004-02-04

    Abstract: Ablation probes are provided for perfusing the tissue, while the tissue is ablated. The ablation probe comprises an elongated shaft and an ablative element, such as a needle electrode. The ablation probe further comprises a lumen that extends through the probe shaft, which will be used to deliver an fluid to the distal end of the probe shaft for perfusion into the surrounding tissue. The ablation probe further comprises a porous structure that is associated with the distal end of the shaft in fluid communication with the lumen. For example, the distal end of the shaft, or the entirety of the shaft, can be composed of the porous structure. Or, if the ablative element is an electrode, the electrode can be composed of the porous structure. Because the pores within the porous structure are pervasive, the fluid will freely flow out into the tissue notwithstanding that some of the pores may become clogged.

    Abstract translation: 提供消融探针用于灌注组织,同时组织被消融。 消融探针包括细长轴和消融元件,例如针电极。 消融探针还包括延伸穿过探针轴的内腔,其将用于将流体输送到探针轴的远端以灌注到周围组织中。 消融探针还包括与轴的远端相关联的多孔结构,其与内腔流体连通。 例如,轴的远端或轴的整体可以由多孔结构构成。 或者,如果烧蚀元件是电极,则电极可以由多孔结构构成。 因为多孔结构内的孔是普遍的,所以即使一些孔隙可能被堵塞,流体也可以自由流出到组织中。

    Electrically conductive concrete and controlled low strength materials having carbon fibers
    145.
    发明授权
    Electrically conductive concrete and controlled low strength materials having carbon fibers 有权
    具有碳纤维的导电混凝土和受控低强度材料

    公开(公告)号:US06821336B1

    公开(公告)日:2004-11-23

    申请号:US10641979

    申请日:2003-08-15

    Abstract: Compositions are provided for increasing the electrical conductivity of concrete or controlled low-strength materials (flowable fill). One composition sets to produce a concrete and includes from 1% to 30% by weight of portland cement; from 1% to 30% by weight of fly ash having a carbon content as measured by loss on ignition of greater than 12%; from 40% to 90% by weight of an aggregate; from 0.1% to 20% by weight of carbon fibers; and water in a sufficient amount such that the composition sets to a concrete. Another composition is a self-compacting, cementitious flowable fill composition that includes from 1% to 30% by weight of portland cement; from 5% to 85% by weight of fly ash; from 0.1% to 20% by weight of carbon fibers; and water in a sufficient amount such that the composition sets to a material having a compressive strength of 8.3 MPa or less.

    Abstract translation: 提供组合物用于提高混凝土或受控低强度材料(可流动填充物)的导电性。 一种组合物用于生产混凝土,包括1%至30%重量的波特兰水泥; 1%至30%重量的具有通过灼烧失重测得的碳含量大于12%的飞灰; 40%至90%的骨料; 0.1重量%至20重量%的碳纤维; 和足够量的水,使得组合物设定为混凝土。 另一种组合物是自密实的水泥质可流动填充组合物,其包含1重量%至30重量%的波特兰水泥; 5%至85%重量的飞灰; 0.1重量%至20重量%的碳纤维; 和水,使得组合物设定为抗压强度为8.3MPa以下的材料。

    Pitch-based carbon foam and composites and uses thereof
    148.
    发明授权
    Pitch-based carbon foam and composites and uses thereof 失效
    沥青基碳泡沫及其复合材料及其用途

    公开(公告)号:US06673328B1

    公开(公告)日:2004-01-06

    申请号:US09519559

    申请日:2000-03-06

    Abstract: A thermally conductive carbon foam is provided, normally having a thermal conductivity of at least 40 W/m·K. The carbon foam usually has a specific thermal conductivity, defined as the thermal conductivity divided by the density, of at least about 75 W·cm3/m·°K·gm. The foam also has a high specific surface area, typically at least about 6,000 m2/m3. The foam is characterized by an x-ray diffraction pattern having “doublet” 100 and 101 peaks characterized by a relative peak split factor no greater than about 0.470. The foam is graphitic and exhibits substantially isotropic thermal conductivity. The foam comprises substantially ellipsoidal pores and the mean pore diameter of such pores is preferably no greater than about 340 microns. Other materials, such as phase change materials, can be impregnated in the pores in order to impart beneficial thermal properties to the foam. Heat exchange devices and evaporatively cooled heat sinks utilizing the foams are also disclosed.

    Abstract translation: 提供导热碳泡沫,通常具有至少40W / m·K的热导率。 碳泡沫通常具有至少约75W·cm 3 / m·cm·g·m的比热传导率(定义为热导率除以密度)。 泡沫也具有高比表面积,通常至少约6,000m 2 / m 3。 泡沫的特征在于具有“双峰”100和101的X射线衍射图,其特征在于相对峰分裂系数不大于约0.470。 泡沫是石墨,并表现出基本上各向同性的热导率。 泡沫包括基本上椭圆形的孔,并且这些孔的平均孔径优选不大于约340微米。 可以将诸如相变材料的其它材料浸渍在孔中,以赋予泡沫有利的热性能。 还公开了使用泡沫的热交换装置和蒸发冷却的散热器。

    Electrically conductive concrete and controlled low-strength materials
    150.
    发明授权
    Electrically conductive concrete and controlled low-strength materials 有权
    导电混凝土和受控低强度材料

    公开(公告)号:US06461424B1

    公开(公告)日:2002-10-08

    申请号:US09790392

    申请日:2001-02-21

    Abstract: Compositions for producing electrically conductive controlled low-strength material and electrically conductive concrete are provided, comprising conventional components, but utilizing a non-standard, high carbon content, fly ash. One settable controlled low-strength material composition includes 1%-20% by weight of portland cement,18%-85% by weight of fly ash having a carbon content of greater than 12%, and water such that the composition sets to a material having a compressive strength of 8.3 MPa or less. One settable concrete composition includes 1%-30% by weight of portland cement, 1%-20% by weight of fly ash having a carbon content of greater than 12%, 40%-90% by weight of an aggregate, and water such that the composition sets to a concrete having a compressive strength of at least 13.8 MPa.

    Abstract translation: 提供用于制造导电控制的低强度材料和导电混凝土的组合物,其包含常规组分,但是使用非标准的高碳含量的飞灰。 一种可设定的控制低强度材料组合物包括1%-20%重量的硅酸盐水泥,18%-85%重量的碳含量大于12%的飞灰和水,使得组合物成为材料 抗压强度为8.3MPa以下。 一种可凝固的混凝土组合物包括1%-30%重量的硅酸盐水泥,1%-20%重量的碳含量大于12%的粉煤灰,40%-90%重量的骨料, 该组合物设定为具有至少13.8MPa的抗压强度的混凝土。

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