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    Irrigated ablation catheter having a flexible manifold
    31.
    发明授权
    Irrigated ablation catheter having a flexible manifold 有权

    公开(公告)号：US10182864B2

    公开(公告)日：2019-01-22

    申请号：US14610843

    申请日：2015-01-30

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

    Inventor： Huisun Wang

    IPC: A61B18/00 ,  A61B18/14

    Abstract: An irrigated ablation catheter includes a shaft having a proximal end, a distal end, and an irrigation lumen therein. The catheter further includes an electrode assembly coupled to the distal end of the shaft. The electrode assembly includes an ablation electrode and a manifold. The manifold is coupled to each of the distal end of the shaft and the proximal end of the electrode. At least a portion of the manifold is constructed of a flexible material to allow the electrode assembly to deflect. The manifold includes a body, an inner cavity within the body configured for fluid communication with the irrigation lumen, and an irrigation port also within the body and configured for fluid communication with the inner cavity. The irrigation port extends from the inner cavity to the outer surface of the body, and is configured to allow for an irrigating fluid to be distributed from the manifold.

    FIXED DIMENSIONAL AND BI-DIRECTIONAL STEERABLE CATHETER CONTROL HANDLE
    32.
    发明申请
    FIXED DIMENSIONAL AND BI-DIRECTIONAL STEERABLE CATHETER CONTROL HANDLE 审中-公开

    公开(公告)号：US20190015633A1

    公开(公告)日：2019-01-17

    申请号：US16046376

    申请日：2018-07-26

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

    Inventor： Michael C. Bednarek ,  Eric J. Wilkowske ,  Richard E. Stehr ,  William E. Butler

    IPC: A61M25/01 ,  A61B5/042

    Abstract: An apparatus for imparting a tensile force to deflect a distal portion of a catheter while maintaining its exterior dimensions may include a handle grip including a cross-section of generally predetermined exterior dimensions, and a longitudinal axis. A flexible elongate member may include proximal and distal end portions, with the proximal end portion being coupled to the handle grip. An adjustment knob may include a cross-section of generally predetermined exterior dimensions, and is rotatably coupled to the handle grip around the longitudinal axis. An elongate deflection member may be operably coupled to the adjustment knob and to the distal end portion of the elongate member. Rotation of the adjustment knob may impart a tensile force to the deflection member thereby causing the distal end portion of the elongate member to deflect from a prior configuration while maintaining the generally predetermined exterior dimensions of the handle grip and the adjustment knob.

    System and method for detection and avoidance of collision of robotically-controlled medical devices
    33.
    发明授权
    System and method for detection and avoidance of collision of robotically-controlled medical devices 有权

    公开(公告)号：US10111723B2

    公开(公告)日：2018-10-30

    申请号：US15148078

    申请日：2016-05-06

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

    Inventor： Eric S. Olson

    IPC: A61B34/00 ,  A61B34/37 ,  A61B34/30 ,  A61B34/32 ,  A61B34/20 ,  G06F19/00 ,  A61B34/10 ,  A61M25/01

    Abstract: A robotic catheter control system includes a collision detection logic configured to determine a collision metric indicative of a collision between a medical device that is manipulated by the robotic control system and an object. The object may be an anatomical feature or can be another medical device, including another device being manipulated by the robotic control system. The collision detection logic produces virtual representations of the medical device and the object and uses these representation to determine collision. Geometrical solids, such as spheres, are used to represent the outer surfaces of the devices and the logic determines whether the respective surfaces intersect, thereby indicating collision. Collision avoidance involves estimating future device poses and then computing an alternate path computation so as avoid predicted collision(s).

    Long travel steerable catheter actuator
    38.
    发明授权
    Long travel steerable catheter actuator 有权

    公开(公告)号：US10022521B2

    公开(公告)日：2018-07-17

    申请号：US14054519

    申请日：2013-10-15

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

    Inventor： John C. Knudson

    IPC: A61M25/00 ,  A61M25/01

    Abstract: The present invention is an electrophysiology, RF ablation, or similar catheter (i.e., catheter or sheath) that includes an actuator that significantly increases the length of travel (i.e., steering travel) of the actuation wires, as compared to the length of travel provided by prior art actuators. The catheter includes a hollow flexible tubular body, a pair of actuation wires disposed in a side-by-side relationship in the body, a handle attached to a proximal end of the body, an actuator pivotally mounted to the handle, an arcuate internal gear rack disposed on the actuator, one or more pulleys pivotally mounted on the handle and coaxially coupled to a pinion gear engaged with the gear rack, and a guide block mounted within the handle. The one or more pulleys include a first channel in which the first actuation wire resides and a second channel in which the second actuation wire resides. The actuation wires pass through holes in the guide block, which aligns the wires into their respective channels. The actuation wires enter into their respective channels on opposite sides of the axis of the one or more pulleys. As the actuator is pivoted relative to the handle, the gear rack rotates the pinion gear and the one or more pulleys. This causes one of the actuation wires to be in-hauled (i.e., wound about the one or more pulleys) and the other actuation wire to be paid-out (i.e., unwound from the one or more pulleys).

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