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    Non-contact mapping system and method
    361.
    发明申请
    Non-contact mapping system and method 审中-公开
    非接触式绘图系统及方法

    公开(公告)号：US20150366481A1

    公开(公告)日：2015-12-24

    申请号：US14766930

    申请日：2014-03-05

    Applicant: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.

    Inventor： Eric J. Voth ,  Jiang Qian

    IPC: A61B5/04 ,  A61B5/0432 ,  A61B5/06 ,  A61B5/044 ,  A61B5/042

    CPC classification number: A61B5/04012 ,  A61B5/0422 ,  A61B5/0432 ,  A61B5/044 ,  A61B5/063

    Abstract: In a system and method for non-contact mapping of an anatomic structure, the spatial position of an electrode is determined independent of a previously generated three-dimensional model of the anatomic structure. A position of the electrode relative to a boundary surface of the model is determined, along with a corresponding point on the boundary surface of the three-dimensional model that is closest to the relative electrode position. A signed distance (d) of the relative electrode position from the corresponding closest point on the boundary surface is determined, wherein a positive signed distance indicates the relative electrode position is exterior to the model. In such an instance, the boundary surface is perturbed (e.g., expanded outward) at least in part as a function of the signed distance (d) until the relative electrode position lies interior to the model.

    Abstract translation: 在用于解剖结构的非接触映射的系统和方法中，独立于解剖结构的先前生成的三维模型来确定电极的空间位置。 确定电极相对于模型的边界表面的位置以及最靠近相对电极位置的三维模型的边界表面上的相应点。 确定相对电极位置与边界表面上对应的最近点的有符号距离（d），其中正有符号距离表示相对电极位置在模型外部。 在这种情况下，边界表面被扰动（例如，向外膨胀）至少部分地作为有符号距离（d）的函数，直到相对电极位置位于模型内部。

    System and method for controlling delivery of ablation energy to tissue
    364.
    发明授权
    System and method for controlling delivery of ablation energy to tissue 有权
    用于控制消融能量传递给组织的系统和方法

    公开(公告)号：US09179972B2

    公开(公告)日：2015-11-10

    申请号：US13826227

    申请日：2013-03-14

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Eric Steven Olson

    IPC: A61B18/18 ,  A61B18/14 ,  A61B18/00 ,  A61B19/00

    CPC classification number: A61B18/1492 ,  A61B2018/00577 ,  A61B2018/00666 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2090/065

    Abstract: A system for controlling delivery of ablation energy by an ablation catheter to tissue in a body is provided. The system includes an electronic control unit configured to determine, responsive to a measurement signal from the ablation catheter, a value for a characteristic associated with the delivery of ablation energy to the tissue. In one embodiment, the characteristic is the degree of contact between the ablation catheter and the tissue. The unit is further configured to generate a control signal, responsive to the determined value of the characteristic, to control an amount of energy delivered from an ablation delivery element on the ablation catheter to the tissue. The amount of energy varies in response to the determined value of the characteristic when the determined value of the characteristic meets a predetermined condition relative to a threshold value for the characteristic.

    Abstract translation: 提供了一种用于通过消融导管将消融能量传递给身体中的组织的系统。 该系统包括电子控制单元，该电子控制单元被配置为响应于来自消融导管的测量信号，确定与向组织递送消融能量相关联的特性的值。 在一个实施例中，特征是消融导管和组织之间的接触程度。 该单元还被配置为响应于所确定的特性值产生控制信号，以控制从消融导管上的消融传递元件传递到组织的能量的量。 当所确定的特性值相对于特性的阈值达到预定条件时，能量的量响应于所确定的特性值而变化。

    Filtering method for surface modeling
    365.
    发明申请
    Filtering method for surface modeling 审中-公开
    表面建模过滤方法

    公开(公告)号：US20150313504A1

    公开(公告)日：2015-11-05

    申请号：US14737875

    申请日：2015-06-12

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Frederik H. Wittkampf ,  John A. Hauck

    IPC: A61B5/06 ,  A61B5/00

    CPC classification number: A61B5/065 ,  A61B5/066 ,  A61B5/1076 ,  A61B5/6885 ,  A61B5/7246 ,  A61B5/743 ,  A61B34/20 ,  A61B2034/105 ,  G01B7/008 ,  G01B21/04

    Abstract: A system for mapping a tissue surface includes a probe for mapping a tissue surface, a localization system to measure a location data point indicative of the probe's location, a memory in which to store the location data point, a servo mechanism to move the probe along at least a portion of the tissue surface, a controller to move the probe to a plurality of locations and to record in the memory a plurality of location data points, and a contact-sensing processor to analyze the plurality of location data points and to identify a subset thereof on the tissue surface. A modeling processor generates a model of the tissue surface using the subset of location data points. The contact-sensing processor utilizes probe velocity, or a rate of change in the distance moved by the probe, to determine contact between the probe and the tissue surface.

    Abstract translation: 用于映射组织表面的系统包括用于映射组织表面的探针，定位系统以测量指示探针位置的位置数据点，存储位置数据点的存储器，用于移动探头的伺服机构 组织表面的至少一部分，将探针移动到多个位置并在存储器中记录多个位置数据点的控制器，以及接触感应处理器，用于分析多个位置数据点并识别 其子集在组织表面上。 建模处理器使用位置数据点的子集生成组织表面的模型。 接触检测处理器利用探针速度或由探针移动的距离的变化率来确定探针和组织表面之间的接触。

    Elongate medical device handle autolock
    366.
    发明授权
    Elongate medical device handle autolock 有权
    细长的医疗器械手柄自动锁定

    公开(公告)号：US09173642B2

    公开(公告)日：2015-11-03

    申请号：US13765128

    申请日：2013-02-12

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Stacie Marie Blaskowski ,  Steven Andreas Anderson

    IPC: A61B17/00 ,  A61M25/01 ,  A61B18/14 ,  A61N7/02 ,  A61B18/00 ,  A61B18/02

    CPC classification number: A61M25/0147 ,  A61B17/00 ,  A61B18/1492 ,  A61B2018/0091 ,  A61B2018/0212 ,  A61M25/0136 ,  A61N7/022

    Abstract: An embodiment of a handle assembly for an elongate medical device that may reduce the weight and/or expense of traditional handle may include an exterior adjusting knob extending along a longitudinal axis and configured to rotate about the axis, an insert, and a dowel pin. The insert may be configured to engage the adjusting knob and to rotate about the axis responsive to rotation of the adjusting knob. The insert may comprise an annular groove configured to engage a dowel pin, the annular groove comprising a sidewall comprising a chamfer. The dowel pin may be configured to engage the annular groove to resist rotation of the insert. In an embodiment, the insert may comprise plastic or polymer.

    Abstract translation: 用于细长医疗装置的手柄组件的实施例可以减小传统手柄的重量和/或费用，可以包括沿着纵向轴线延伸并被构造为围绕轴线，插入件和定位销转动的外部调节旋钮。 插入件可以被配置为接合调节旋钮并且响应于调节旋钮的旋转围绕轴旋转。 插入件可以包括构造成接合定位销的环形槽，环形槽包括包括倒角的侧壁。 定位销可以构造成接合环形槽以阻止插入件的旋转。 在一个实施例中，插入件可以包括塑料或聚合物。

    System and method for assessing coupling between an electrode and tissue
    367.
    发明授权
    System and method for assessing coupling between an electrode and tissue 有权
    用于评估电极和组织之间的耦合的系统和方法

    公开(公告)号：US09173586B2

    公开(公告)日：2015-11-03

    申请号：US13777580

    申请日：2013-02-26

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Don Curtis Deno ,  Stephan P. Miller ,  Lewis C. Hill ,  Yuriy Malinin ,  Haris J. Sih

    IPC: A61B5/05 ,  A61B5/053 ,  A61B5/00 ,  A61B18/12 ,  A61B18/14 ,  A61B18/00 ,  A61B19/00

    CPC classification number: A61B18/00 ,  A61B5/053 ,  A61B5/6885 ,  A61B5/6886 ,  A61B18/1233 ,  A61B18/14 ,  A61B18/1492 ,  A61B2018/00178 ,  A61B2018/00642 ,  A61B2018/00773 ,  A61B2018/00875 ,  A61B2090/065

    Abstract: A system and method for assessing a degree of coupling between an electrode and tissue in a body is provided. Values for first and second components of a complex impedance (e.g., resistance and reactance or impedance magnitude and phase angle) between the electrode and the tissue are obtained. These values are used together with a standardization value indicative of a deviation from a reference standard by a parameter associated with at least one of the body, the electrode and another component of the system to calculate a coupling index that is indicative of a degree of coupling between the electrode and the tissue. The coupling index may be displayed to a clinician in a variety of ways to indicate the degree of coupling to the clinician. The system and method find particular application in ablation of tissue by permitting a clinician to create lesions in the tissue more effectively and safely.

    Abstract translation: 提供了一种用于评估身体中电极和组织之间的耦合程度的系统和方法。 获得电极和组织之间的复阻抗的第一和第二分量的值（例如，电阻和电抗或阻抗幅度和相位角）。 这些值与表示与参考标准的偏差的标准化值一起使用与系统的主体，电极和另一部件中的至少一个相关联的参数来计算表示耦合度的耦合指数 在电极和组织之间。 耦合指数可以以各种方式显示给临床医生以指示与临床医生的耦合程度。 该系统和方法通过允许临床医生更有效和安全地在组织中产生损伤来发现组织消融中的特定应用。

    Catheter for manual and remote manipulation
    370.
    发明授权
    Catheter for manual and remote manipulation 有权
    导管用于手动和远程操作

    公开(公告)号：US09114232B2

    公开(公告)日：2015-08-25

    申请号：US13729981

    申请日：2012-12-28

    Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

    Inventor： Eric S. Olson ,  Mark B. Kirschenman

    IPC: A61M25/01

    CPC classification number: A61M25/0147 ,  A61M25/0113 ,  A61M25/0136 ,  A61M25/0155

    Abstract: An elongate medical device may overcome be configured both for manual manipulation by a physician and for automatic manipulation by a remote catheter guidance system. Such an elongate medical device comprises a shaft having a proximal portion and a distal portion, a pull wire disposed in the shaft and affixed to the distal portion of the shaft, and a handle coupled with the proximal portion of the catheter shaft. The handle comprises a first mechanism configured for manual actuation of the pull wire so as to deflect the distal portion of the shaft, a second mechanism configured for remote actuation of the pull wire so as to deflect the distal portion of the shaft, and a mechanical interface configured to provide a remote catheter guidance system with a functional connection to the second mechanism.

    Abstract translation: 细长的医疗装置可以克服被配置为由医师进行手动操作并且由远程导管引导系统进行自动操作。 这种细长的医疗装置包括具有近端部分和远端部分的轴，设置在轴中并固定到轴的远侧部分的拉线以及与导管轴的近端部分联接的手柄。 手柄包括第一机构，其构造成用于手动致动拉线，以便偏转轴的远端部分;第二机构，其构造成用于远程致动拉线，以便偏转轴的远端部分;以及机械 接口，被配置为提供具有到第二机构的功能连接的远程导管引导系统。

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