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    • 41. 发明申请
    • APPARATUS FOR REAL TIME EVALUATION OF TISSUE ABLATION
    • 用于实时评估组织消融的装置
    • WO2006055741A1
    • 2006-05-26
    • PCT/US2005/041737
    • 2005-11-17
    • BIOSENSE WEBSTER, INC.SHARAREH, Shiva
    • SHARAREH, Shiva
    • A61B18/22
    • A61B18/24A61B18/20A61B18/22A61B2017/00057A61B2018/00636
    • An apparatus and method for the evaluation of tissue ablation is provided. The apparatus comprises a broadband (white; multiple wavelengths) light and/or laser light (single wavelength) illumination source that delivers light to the site where a lesion is being formed. Scattered light is collected from the ablated tissue and evaluated to obtain qualitative information regarding the newly formed lesion. The apparatus allows assessment of such parameters as, for example, catheter- tissue proximity, lesion formation, depth of penetration of the lesion, cross-sectional area of the lesion in the tissue, formation of char during the ablation, recognition of char from non-charred tissue, formation of coagulum around the ablation site, differentiation of coagulated from non-coagulated blood, differentiation of ablated from healthy tissue, and recognition of steam formation in the tissue for prevention of steam pop. These assessments are accomplished by measuring the intensity and spectrum of diffusely reflected light at one or more wavelengths.
    • 提供了一种用于评估组织消融的装置和方法。 该装置包括将光传送到正在形成病变部位的宽带(白色;多波长)光和/或激光(单波长)照明源。 从消融组织收集分散的光,并评估获得关于新形成的病变的定性信息。 该装置允许评估诸如导管组织接近度,病变形成,病变的穿透深度,组织中损伤的横截面积,消融期间形成焦炭,从非识别中识别焦炭等参数 残留组织,消融部位周围的凝块形成,凝固的凝血分化,从健康组织中消融的分化,以及组织中蒸汽形成的识别,以防止蒸汽流出。 这些评估通过测量一个或多个波长的漫反射光的强度和光谱来实现。
    • 44. 发明申请
    • CIRCUMFERENTIAL ABLATION DEVICE ASSEMBLY WITH DUAL EXPANDABLE MEMBERS
    • 具有双重可扩展成员的循环消除装置组件
    • WO2005065562A1
    • 2005-07-21
    • PCT/US2004/043644
    • 2004-12-23
    • BIOSENSE WEBSTER, INCBHOLA, Sumita
    • BHOLA, Sumita
    • A61B18/14
    • A61N7/02A61B18/02A61B18/1492A61B18/18A61B18/24A61B2017/003A61B2018/00065A61B2018/00214A61B2018/00261A61B2018/00375A61B2018/00577A61B2018/1861
    • Abstract of the Disclosure The present invention involves a surgical device and method of use, particularly an assembly and method incorporating dual expandable members along the distal region of an ablation device to facilitate ablation of a circumferential region of tissue engaged by the expandable member. The ablation device assembly includes an elongate body with a proximal end portion, a distal end portion, and a longitudinal axis. A first expansion element is located along the distal end portion of the elongate body, and is fluidly coupled to a first source of inflation fluid. A second expansion element having a circumferential wall is located along the distal end portion proximal the first expansion element, and is fluidly coupled to a second source of inflation fluid. An ablation element having an ablative energy source is located along the distal end portion within the second expansion element, wherein the ablation element cooperates with the second expansion element such that the ablative energy source emits a substantially circumferential pattern of energy through the circumferential wall.
    • 发明内容本发明涉及一种外科手术装置和使用方法,特别是包括沿着消融装置的远端区域的双重可扩张构件的装配和方法,以便于消融由可扩张构件接合的组织的周边区域。 消融装置组件包括具有近端部分,远端部分和纵向轴线的细长主体。 第一膨胀元件沿着细长体的远端部分定位,并且流体地联接到第一膨胀流体源。 具有圆周壁的第二膨胀元件沿着靠近第一膨胀元件的远端部分定位,并且流体地联接到第二膨胀流体源。 具有消融能量源的消融元件沿着第二膨胀元件内的远端部分定位,其中消融元件与第二膨胀元件配合,使得烧蚀能量源通过周向壁发射基本上圆周的能量图案。