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    Steering actuator for deflectable catheter
    51.
    发明授权
    Steering actuator for deflectable catheter 有权

    公开(公告)号：US10583272B2

    公开(公告)日：2020-03-10

    申请号：US15829202

    申请日：2017-12-01

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

    Inventor： Alex Yu ,  Stephen W. Evans ,  Genevieve L. Gallagher ,  Troy T. Tegg

    IPC: A61M25/01

    Abstract: Catheter shaft handles and deflection actuators are disclosed. The actuators include at least one pull wire guide wall and a means for anchoring the proximal portion of a pull wire or of a fiber attached to a pull wire. Each actuator is pivotable relative to the catheter handle housing, and may comprise at least one boss for pivoting the actuator relative to the catheter handle housing. The actuators transfer rotational motion based upon user input on a boss into longitudinal motion of a pull wire. The actuators may include a tensioning mechanism comprising a tension adjustment pin and a pin block, wherein the tension adjustment pin is rotatably attached to the pin block to enable adjustment of tension in a pull wire (e.g., during assembly of the catheter handle).

    CATHETER ACTUATORS PROVIDING MECHANICAL ADVANTAGE
    58.
    发明申请
    CATHETER ACTUATORS PROVIDING MECHANICAL ADVANTAGE 有权
    电动执行机构提供机械优势

    公开(公告)号：US20140276222A1

    公开(公告)日：2014-09-18

    申请号：US13840176

    申请日：2013-03-15

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

    Inventor： Troy T. Tegg

    IPC: A61M25/09

    CPC classification number: A61M25/0136 ,  A61B18/1492 ,  A61B2018/00357 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61M25/0147

    Abstract: Catheter actuators providing a mechanical advantage are disclosed. The actuators include a pull wire arm guide plate and a drive wheel attached around the pull wire arm guide plate and pivotable relative to the guide plate, the drive wheel comprising at least one thumb boss for pivoting the drive wheel about a drive wheel axis of rotation. The drive wheel mechanically engages at least one pull wire arm slidably mounted in a pull wire arm channel in the pull wire arm guide plate. A mechanism transfers drive wheel input into longitudinal motion of the at least one pull wire arm. The mechanism may include, for example, a pin pushing against a bendable pushing member riding in an arcuate pin groove in a top surface of the guide plate, or a pin pushing against a surface of a cam arm pivotably mounted on the top surface of the guide plate.

    Abstract translation: 公开了提供机械优点的导管致动器。 致动器包括拉线臂引导板和围绕拉线臂引导板并且可相对于引导板枢转的驱动轮，驱动轮包括至少一个拇指凸台，用于围绕驱动轮旋转轴线枢转驱动轮 。 驱动轮机械地接合至少一个拉线臂，其可滑动地安装在拉线臂引导板中的拉线臂通道中。 机构将驱动轮输入传送到至少一个拉线臂的纵向运动。 该机构可以包括例如销在推动导向板的顶表面中的弓形销槽中的可弯曲推动构件上的销，或者推动可枢转地安装在导向板的顶表面上的凸轮臂的表面的销 导板。

    CATHETER SYSTEMS
    60.
    发明申请
    CATHETER SYSTEMS 有权

    公开(公告)号：US20240390671A1

    公开(公告)日：2024-11-28

    申请号：US18795674

    申请日：2024-08-06

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

    Inventor： Saurav Paul ,  Troy T. Tegg ,  Israel A. Byrd ,  Riki Thao ,  Harry A. Puryear ,  Linda Nemec

    IPC: A61N1/32 ,  A61B18/00 ,  A61B18/14

    Abstract: Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.

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