DEVICES AND METHODS FOR THERMAL ABLATION OF BIOLOGICAL TISSUE USING GEOMETRIC ABLATION PATTERNS
    53.
    发明公开
    DEVICES AND METHODS FOR THERMAL ABLATION OF BIOLOGICAL TISSUE USING GEOMETRIC ABLATION PATTERNS 有权
    装置消融组织与水平椭圆形展开电极

    公开(公告)号:EP2142127A2

    公开(公告)日:2010-01-13

    申请号:EP08746471.5

    申请日:2008-04-21

    申请人: S.D.M.H.PTY. Ltd.

    IPC分类号: A61B18/14

    摘要: A tissue ablation system including numerous components and methods is described herein for encircling target tissue and generating tissue ablation volumes in various biological tissues. The biological tissue includes tissue of a variety of organs of the human body including the liver, spleen, kidney, lung, breast and other organs, but is not so limited. The tissue ablation device comprises an energy source and at least one trocar coupled to the energy source, the trocar having a body, a proximal end, and a distal end. The trocar carries an electrode array that comprises a plurality of electrodes, each electrode of the plurality of electrodes is configured to extend from the trocar when moved from a retracted state to a deployed state, and to have at least one radius of curvature in the deployed state so that the electrode array forms a series of shaped electrodes in the deployed state.

    Breast biopsy system
    54.
    发明公开
    Breast biopsy system 审中-公开
    Brustbiopsiesystem

    公开(公告)号:EP2025292A1

    公开(公告)日:2009-02-18

    申请号:EP08019132.3

    申请日:1999-03-02

    申请人: Senorx, Inc.

    IPC分类号: A61B10/00 A61B17/32 A61B17/22

    摘要: An apparatus and method are provided for precisely isolating a target lesion in a patient's body tissue, resulting in a high likelihood of "clean" margins about the lesion when it is removed for diagnosis and/or therapy. This approach advantageously will often result in the ability to both diagnose and treat a malignant lesion with only a single percutaneous procedure, with no follow-up percutaneous or surgical procedure required, while minimizing the risk of migration of possible cancerous cells from the lesion to surrounding tissue or the bloodstream. In particular, the apparatus comprises a biopsy instrument having a distal end adapted for entry into the patient's body, a longitudinal shaft, and a cutting element disposed along the shaft. The cutting element is actuatable between a radially retracted position and a radially extended position. Advantageously, the instrument is rotatable about its axis in the radially extended position to isolate a desired tissue specimen from surrounding tissue by defining a peripheral margin about the tissue specimen. Once the tissue specimen is isolated, it may be segmented by further manipulation of the cutting element, after which the tissue segments are preferably individually removed from the patient's body through a cannula or the like. Alternatively, the specimen may be encapsulated and removed as an intact piece.

    摘要翻译: 提供了一种用于精确地分离患者体内组织中的靶病变的装置和方法,导致当其被去除用于诊断和/或治疗时,对病变的“清洁”边缘的高可能性。 这种方法有利地经常导致仅使用单一经皮手术来诊断和治疗恶性病变的能力,而不需要随访的经皮或外科手术,同时最小化可能的癌细胞从病变迁移到周围的风险 组织或血液。 特别地,该装置包括具有适于进入患者身体的远端的活检器械,纵向轴和沿轴设置的切割元件。 切割元件可在径向缩回位置和径向延伸位置之间致动。 有利地,仪器可以在径向延伸的位置围绕其轴线旋转,以通过围绕组织标本限定周边边界来隔离期望的组织样本与周围组织。 一旦组织样本被分离,可以通过进一步操纵切割元件来分割组织样本,之后组织段优选通过套管等从患者身体单独地移除。 或者,样品可以作为完整的片段被包封和去除。

    APPARATUS FOR DELIVERING ENERGY TO A TARGET SITE WITHIN BONE
    55.
    发明授权
    APPARATUS FOR DELIVERING ENERGY TO A TARGET SITE WITHIN BONE 有权
    设备引入精力投入到目的地骨

    公开(公告)号:EP1641406B1

    公开(公告)日:2007-03-14

    申请号:EP04785815.4

    申请日:2004-04-29

    IPC分类号: A61B18/14

    摘要: An apparatus for delivering energy to a target site within bone includes a hollow needle extending from a handle that terminates in a tissue piercing distal tip. A drill within a lumen of the needle is extendable beyond the distal tip, and includes a cutting element and an electrically conductive region. An RF generator may be coupled to the drill for delivering energy to the electrically conductive region, and a driver or actuator may be coupled to the drill for rotating and/or advancing the drill axially. During use, the needle is inserted through a patient's skin to a hard tissue structure, e.g., a bone, including a target site therein, e.g., a tumor. The drill is advanced from the needle, a hole is drilled into the bone until the drill reaches the tumor, and electrical energy is delivered via the electrically conductive region to destroy the tumor.

    Apparatus for therapeutic cauterization of predetermined volumes of biological tissue
    59.
    发明公开
    Apparatus for therapeutic cauterization of predetermined volumes of biological tissue 失效
    on ur chen chen ten ten ten ten ten ten ten ten ten ten ten ten ten ten

    公开(公告)号:EP1440665A1

    公开(公告)日:2004-07-28

    申请号:EP04008393.3

    申请日:1998-06-30

    IPC分类号: A61B18/14

    摘要: The present invention relates to an apparatus for use with a power source (11) to provide therapeutic cauterization of a known volume of tissue, the apparatus comprising an energy applicator (21) having unique electrode parameters adapted to provide cauterization of a predetermined volume of tissue, the energy applicator (21) comprising a shaft (40) having a longitudinal axis, a lumen (62) and a distal end having a sharpened edge (63) to facilitate introduction and advancement of the energy applicator into the tissue; an extractor (131) disposed within the lumen (62) , the extractor having a sharpened distal end (63) and a side-facing cavity adapted to accept a tissue sample, the extractor movable from a first position wherein the side-facing cavity extends beyond the distal end of the shaft to accept a tissue sample, and a second position wherein the side facing cavity is retracted within the lumen to sever the tissue sample against the sharpened edge (41) of the shaft; first (28) and second (29) electrodes disposed on the shaft and spaced apart along the longitudinal axis, the distance between the first (28) and second (29) electrodes determining a size and shape of a zone of cauterization produced in the tissue by the energy applicator (21) ; and an electrically insulating material (31) disposed between the first (28) and second (29) electrodes to electrically insulate the first electrode (28) from the second electrode (29) ; a handle (22) that couples the energy applicator (21) to the power source (11) , the handle including control circuitry (39) adapted to control supply (22) of a current between the first (28) and second (29) electrodes, the control circuitry further comprises a current detector adapted to measure a current level between the first and second electrodes; and circuitry for terminating supply of power to the energy applicator when the current level falls a predetermined amount.

    摘要翻译: 本发明涉及一种与电源(11)一起使用以提供已知体积的组织的治疗性烧灼的装置,该装置包括具有独特电极参数的能量施加器(21),该电极施加器适于提供预定体积的组织的烧灼 ,所述能量施加器(21)包括具有纵向轴线的轴(40),内腔(62)和具有锐化边缘(63)的远端,以便于将能量施加器引入和前进到组织中; 设置在所述内腔(62)内的提取器(131),所述提取器具有锐化的远端(63)和适于接纳组织样本的面向侧的腔,所述提取器可从第一位置移动,所述第一位置, 超过所述轴的远端以接收组织样本,以及第二位置,其中所述侧面朝向的空腔缩回到所述内腔内以将所述组织样本切断所述轴的所述锋利边缘(41); 第一(28)和第二(29)电极,其设置在轴上并沿着纵向轴线间隔开,第一电极(28)和第二电极(29)之间的距离确定组织中产生的烧灼区域的尺寸和形状 通过能量施加器(21); 以及设置在所述第一电极(28)和第二电极(29)之间的电绝缘材料(31),以使所述第一电极(28)与所述第二电极(29)电绝缘; 将所述能量施加器(21)耦合到所述电源(11)的手柄(22),所述手柄包括控制电路(39),所述控制电路(39)适于控制所述第一(28)和第二(29) 电极,所述控制电路还包括适于测量所述第一和第二电极之间的电流电平的电流检测器; 以及用于当电流水平下降预定量时终止向能量施加器供电的电路。