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61 条记录 (耗时 0.057 秒)

    Tissue lesion evaluation
    11.
    发明授权
    Tissue lesion evaluation 有权
    组织病变评估

    公开(公告)号：US08821488B2

    公开(公告)日：2014-09-02

    申请号：US12465435

    申请日：2009-05-13

    申请人： Mark Stewart ,  David Francischelli ,  Jinback Hong ,  Sarah Ahlberg

    发明人： Mark Stewart ,  David Francischelli ,  Jinback Hong ,  Sarah Ahlberg

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1445 ,  A61B2018/00029 ,  A61B2018/00065 ,  A61B2018/00113 ,  A61B2018/0016 ,  A61B2018/00357 ,  A61B2018/00363 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2018/1472 ,  A61B2090/064 ,  A61B2218/002

    摘要： Device, system and method for ablating tissue of a heart of a patient. The tissue is clamped between a pair of opposing jaws. A portion of the tissue is ablated at a first generally linear position on the tissue by applying ablative energy to two of a plurality of elongate electrodes, each of the two of the plurality of elongate electrodes being coupled in opposing relationship to each other and the pair of opposing jaws, respectively. An effectiveness of the ablation is sensed at a second generally linear position on the tissue with at least one of the plurality of elongate electrodes positioned on one of the pair of opposing jaws. The second linear position on the tissue is laterally distal to the first linear position on the tissue with respect to the atrium of the heart.

    摘要翻译： 用于消除患者心脏的组织的装置，系统和方法。 将组织夹在一对相对的夹爪之间。 通过向多个细长电极中的两个施加烧蚀能量，组织的一部分在组织上的第一大致线性位置被消融，多个细长电极中的每一个彼此相对地相互耦合，并且该对 的对颚分别。 在组织上的第二大致直线位置处感测消融的有效性，其中多个细长电极中的至少一个位于一对相对的夹爪中的一个上。 组织上的第二线性位置相对于心脏的心房横向远离组织上的第一线性位置。

    Trans-septal catheter with retention mechanism
    14.
    发明申请
    Trans-septal catheter with retention mechanism 审中-公开

    公开(公告)号：US20060184221A1

    公开(公告)日：2006-08-17

    申请号：US11399865

    申请日：2006-04-07

    申请人： Mark Stewart ,  David Francischelli ,  James Skarda

    发明人： Mark Stewart ,  David Francischelli ,  James Skarda

    IPC分类号： A61N1/05

    CPC分类号： A61B17/00234 ,  A61B2017/00252 ,  A61M25/10

    摘要： A trans-septal guide catheter for providing access through the septum separating a first heart chamber from a second heart chamber that includes an elongated guide catheter body extending between guide catheter proximal and distal ends. A distal segment of the guide catheter is adapted to be inserted through the septum to locate the distal segment of the guide catheter within one of the first heart chamber and the second heart chamber. The catheter body encloses a guide catheter lumen adapted to provide access into the one of the first heart chamber and the second heart chamber through a guide catheter lumen proximal end opening and a guide catheter lumen distal end opening. A retention mechanism engages the septum and maintains the distal segment of the guide catheter extending into the one of the first heart chamber and the second heart chamber

    Steerable catheter
    20.
    发明申请
    Steerable catheter 有权
    导向导管

    公开(公告)号：US20050096590A1

    公开(公告)日：2005-05-05

    申请号：US10697486

    申请日：2003-10-30

    申请人： George Gullickson ,  Mark Stewart ,  Joseph Cardinal ,  Harry Puryear ,  Scott Klimek ,  James Skarda ,  Richard Thompson ,  Alan Carlson

    发明人： George Gullickson ,  Mark Stewart ,  Joseph Cardinal ,  Harry Puryear ,  Scott Klimek ,  James Skarda ,  Richard Thompson ,  Alan Carlson

    IPC分类号： A61M25/01 ,  A61M31/00

    CPC分类号： A61M25/0136

    摘要： A deflection mechanism for selectively inducing a bend in a catheter body includes an elongated deflection wire extending within a deflection lumen of the catheter body and into a handle. A guide track is formed within the handle and a thumb wheel is mounted proximal to the elongated guide track within the handle and supports a pinion gear; the thumb wheel and the pinion gear are adapted to be rotated about a common thumb wheel axis, which extends substantially perpendicular to the longitudinal axis. A rack arm extends obliquely to the longitudinal axis of the handle and includes runners received by the guide track, an attachment point coupling the deflection wire to the rack arm and a linear rack engaging the pinion gear. Rotation of the thumb wheel in a first direction draws the deflection wire proximally through the deflection lumen.

    摘要翻译： 用于选择性地诱导导管主体中的弯曲的偏转机构包括在导管主体的偏转腔内延伸并延伸到手柄中的细长偏转线。 引导轨道形成在手柄内，拇指轮安装在手柄内的细长导轨附近，并支撑小齿轮; 拇指轮和小齿轮适于围绕基本上垂直于纵向轴线延伸的公共拇指轮轴旋转。 齿条臂相对于手柄的纵向轴线倾斜地延伸，并且包括由导轨接收的跑道，将偏转线连接到齿条臂的连接点和与小齿轮啮合的直线齿条。 拇指轮在第一方向的旋转将偏转线向近侧拉出通过偏转内腔。