利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

151 条记录 (耗时 0.052 秒)

    Variable cross-section conical vasoocclusive coils
    32.
    发明授权
    Variable cross-section conical vasoocclusive coils 失效
    可变截面圆锥形血管收缩线圈

    公开(公告)号：US5649949A

    公开(公告)日：1997-07-22

    申请号：US625805

    申请日：1996-03-28

    申请人： Michael P. Wallace ,  Francisco S. Villar ,  Christopher G. M. Ken ,  David A. Gyorke ,  Timothy S. Winkle

    发明人： Michael P. Wallace ,  Francisco S. Villar ,  Christopher G. M. Ken ,  David A. Gyorke ,  Timothy S. Winkle

    IPC分类号： A61B17/12

    CPC分类号： A61B17/1215 ,  A61B17/12022 ,  A61B17/12109 ,  A61B17/12145

    摘要： This is an implantable vasoocclusive device. It is constructed of a primary helically wound coil, which primary coil is further wound into secondary shapes which are at least partially substantially conical. Other portions of the secondary shape may have sections of constant diameter or of other conical shapes. The primary coil may be made in such a way that it has regions of differing flexibility. Fibrous materials may be placed on the coils in tufted, streamer, or woven configurations so to increase the thrombogenicity of the overall assembled device.

    摘要翻译： 这是一种植入式血管收缩装置。 它由主螺旋卷绕线圈构成，初级线圈进一步卷绕成至少部分基本上为圆锥形的次级形状。 二次形状的其他部分可以具有恒定直径或其它圆锥形状的部分。 初级线圈可以制成具有不同柔性的区域。 纤维材料可以以簇状，拖缆或编织构型放置在线圈上，以增加整个装配的装置的血栓形成。

    Electrical means to normalize ablational energy transmission to a luminal tissue surface of varying size
    35.
    发明授权
    Electrical means to normalize ablational energy transmission to a luminal tissue surface of varying size 有权
    电气意味着将消融能量传递归一化到不同大小的管腔组织表面

    公开(公告)号：US08784338B2

    公开(公告)日：2014-07-22

    申请号：US12143404

    申请日：2008-06-20

    申请人： Michael P. Wallace ,  Robert Garabedian ,  Brent C. Gerberding

    发明人： Michael P. Wallace ,  Robert Garabedian ,  Brent C. Gerberding

    IPC分类号： A61B5/00 ,  A61B5/103 ,  A61B5/107

    CPC分类号： A61B18/18 ,  A61B5/053 ,  A61B5/0538 ,  A61B5/1076 ,  A61B18/0218 ,  A61B18/082 ,  A61B18/14 ,  A61B18/1492 ,  A61B18/20 ,  A61B2018/00017 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00488 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00714 ,  A61B2018/00755 ,  A61B2018/00791 ,  A61B2018/00875 ,  A61B2562/0257

    摘要： Methods and devices for measuring the size of a body lumen and a method for ablating tissue that uses the measurement to normalize delivery of ablational energy from an expandable operative element to a luminal target of varying circumference are provided. The method includes inserting into the lumen an expandable operative element having circuitry with resistivity or inductance that varies according to the circumference of the operative element, varying the expansion of the operative element with an expansion medium, measuring the resistivity of the circuitry, and relating the resistivity or inductance to a value for the circumference of the operative element. In some embodiments the sizing circuit includes a conductive elastomer wrapped around the operative element. Other embodiments of the method apply to operative elements that include an overlapping energy delivery element support in which the overlap varies inversely with respect to the state of expansion, and which is configured with sizing electrodes that sense the amount of the overlap.

    摘要翻译： 提供了用于测量体腔尺寸的方法和装置以及用于消融组织的方法和装置，所述方法使用所述测量来将消融能量从可扩张的可操作元件的规则化转变为变化圆周的管腔靶。 该方法包括将具有电阻率或电感的电路的可扩展的操作元件插入到内腔中，所述电路或电感根据操作元件的周长而变化，用膨胀介质改变操作元件的膨胀，测量电路的电阻率， 电阻率或电感值为操作元件圆周的值。 在一些实施例中，施胶电路包括围绕操作元件缠绕的导电弹性体。 该方法的其他实施例适用于包括重叠的能量传递元件支撑件的操作元件，其中重叠相对于膨胀状态反向变化，并且其被配置有感测重叠量的尺寸电极。

    Method and apparatus for gastrointestinal tract ablation for treatment of obesity
    36.
    发明授权
    Method and apparatus for gastrointestinal tract ablation for treatment of obesity 有权
    用于治疗肥胖的胃肠道消融的方法和装置

    公开(公告)号：US08641711B2

    公开(公告)日：2014-02-04

    申请号：US12114628

    申请日：2008-05-02

    申请人： Douglas Kelly ,  David S. Utley ,  Robert A. Ganz ,  Michael P. Wallace ,  Nathan Every

    发明人： Douglas Kelly ,  David S. Utley ,  Robert A. Ganz ,  Michael P. Wallace ,  Nathan Every

    IPC分类号： A61B18/18

    CPC分类号： A61B18/04 ,  A61B18/1492 ,  A61B18/18 ,  A61B2018/0022 ,  A61B2018/0212 ,  A61B2018/1467

    摘要： Devices and methods for ablating tissue in the wall of various organs of the gastrointestinal tract of a patient in order to cure or ameliorate metabolic pathophysiological conditions such as obesity, insulin resistance, or type 2 diabetes mellitus are provided. Ablational treatment of target areas may be fractional or partial, rendering a post-treatment portion of target tissue ablated and another portion that is substantially intact. Fractional ablation is achieved by controlling the delivery of ablational energy across the surface area being treated, and controlling the depth of energy penetration into tissue. Surface area control of energy delivery may controlled by the spatial pattern of distributed ablation elements or by the selective activation of a subset of a dense pattern of ablation elements. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees.

    摘要翻译： 提供了用于消除患者胃肠道的各种器官的壁中的组织以便治愈或改善代谢病理生理条件如肥胖，胰岛素抵抗或2型糖尿病的装置和方法。 目标区域的消融治疗可能是部分或部分，使目标组织的后处理部分消融，另一部分基本上完好无损。 通过控制穿过所治疗的表面区域的消融能量的传递并控制能量渗入组织的深度来实现分数消融。 能量输送的表面积控制可以由分布式消融元件的空间模式控制，或者通过选择性地激活消融元件的密集图案的子集。 该装置的实施例包括跨越360度的消融电极阵列和跨越小于360度的弧的阵列。

    Tissue modification devices and methods
    40.
    发明授权
    Tissue modification devices and methods 有权
    组织修饰装置及方法

    公开(公告)号：US08398641B2

    公开(公告)日：2013-03-19

    申请号：US13338103

    申请日：2011-12-27

    申请人： Michael P. Wallace ,  Robert Garabedian ,  Nestor C. Cantorna ,  Jeffery L. Bleich ,  Roy Leguidleguid ,  Ronald Leguidleguid

    发明人： Michael P. Wallace ,  Robert Garabedian ,  Nestor C. Cantorna ,  Jeffery L. Bleich ,  Roy Leguidleguid ,  Ronald Leguidleguid

    IPC分类号： A61B17/00

    CPC分类号： A61B17/025 ,  A61B5/4893 ,  A61B17/0218 ,  A61B17/1671 ,  A61B17/32 ,  A61B17/320016 ,  A61B17/7032 ,  A61B17/7062 ,  A61B17/864 ,  A61B2017/0256 ,  A61B2017/32006

    摘要： Described herein are devices and methods for cutting tissue in a patient. In some embodiments, a bimanually controlled device may include a tissue modification region; at least two flexible elongate lengths of cable that extend substantially adjacent to each other proximally to distally; a plurality of rungs extending between the lengths of cable; and a pair of flexible elongate cutting members extending along the length of the tissue modification region of the device. Each elongate cutting member has a thickness cuts a discrete trough into tissue to a depth that is greater than the thickness of the cutting member. The device may further include a substrate sized and configured to releasably hold the cutting members a distance from one another and a pair of couplers positioned toward an outer edge region of the substrate and configured to releasably secure a cutting member to the outer edge region of the substrate.

    摘要翻译： 本文描述了用于在患者体内切割组织的装置和方法。 在一些实施例中，双手控制的装置可以包括组织修改区域; 至少两个柔性长度的电缆，其基本上彼此相邻地向远侧延伸延伸; 在电缆长度之间延伸的多个梯级; 以及沿设备的组织修改区域的长度延伸的一对柔性细长切割构件。 每个细长的切割构件具有将离散凹槽切割成组织的厚度，其厚度大于切割构件的厚度。 该装置还可以包括基板，其尺寸和构造为将切割构件可释放地保持彼此间隔一定距离;以及一对耦合器，其朝向基板的外边缘区域定位，并且构造成将切割构件可释放地固定到外部边缘区域 基质。