Zero force catheter
    31.
    发明授权

    公开(公告)号:US11931528B2

    公开(公告)日:2024-03-19

    申请号:US16891395

    申请日:2020-06-03

    Abstract: A catheter configured to dynamically compensate for the impact of internal and external forces that act upon the catheter during use is disclosed. The catheter may include sensors configured to measure received forces on control cables that extend within the catheter. A controller, coupled to the sensors, may record received force measurements associated with a working position of a distal end of the catheter. The controller may monitor subsequently received forces to identify force variances that may deflect the distal end of the catheter from its working position and may apply a driving force to one or more of the control cables to minimize the force variances. Monitoring received forces during use and applying compensating drive forces may reduce deflection of the distal end of the catheter, increasing the accuracy and precision of an annuloplasty procedure while minimizing potential damage to cardiac tissue.

    DEVICES, SYSTEMS, AND METHODS FOR CLAMPING A LEAFLET OF A HEART VALVE

    公开(公告)号:US20210007847A1

    公开(公告)日:2021-01-14

    申请号:US16919782

    申请日:2020-07-02

    Abstract: The present disclosure relates generally to the field of medical devices for clamping a leaflet of a heart valve. In particular, the present disclosure relates to medical devices, systems, and methods for delivering artificial chordae tendineae in a patient. In an embodiment, a system may include a clamp having a plurality of arms at a first end. The plurality of arms may have a closed configuration in which the arms are oriented toward each other, and an open configuration in which the arms are oriented away from each other. A spring portion may be coupled to the plurality of arms at a second end that is configured to bias the arms to the closed configuration. The arms of the clamp may be configured to fixedly engage with a leaflet of the heart valve. The second end of the clamp may be configured to couple to an artificial chordae tendineae.

    DEVICES, SYSTEMS, AND METHODS FOR ANCHORING AN ARTIFICIAL CHORDAE TENDINEAE TO A PAPILLARY MUSCLE OR HEART WALL

    公开(公告)号:US20210000598A1

    公开(公告)日:2021-01-07

    申请号:US16919794

    申请日:2020-07-02

    Abstract: The present disclosure relates generally to the field of medical devices for delivering artificial chordae tendineae in a patient. In an embodiment, an anchor is movable between a delivery configuration and a deployed configuration, the anchor being in the delivery configuration when disposed within a delivery catheter, the anchor being in the deployed configuration when the anchor is moved beyond a distal end of the delivery catheter. When the anchor is in the delivery configuration it has a first outer dimension and when the anchor is in the deployed configuration it has a second outer dimension, the first outer dimension being smaller than the second outer dimension. The anchor is engageable with a papillary muscle or a heart wall when the anchor is in the deployed configuration and is also coupleable to an artificial chordae tendineae to anchor the artificial chordae tendineae to the papillary muscle or heart wall.

    DEVICES, SYSTEMS, AND METHODS FOR ADJUSTABLY TENSIONING AN ARTIFICIAL CHORDAE TENDINEAE BETWEEN A LEAFLET AND A PAPILLARY MUSCLE OR HEART WALL

    公开(公告)号:US20210000597A1

    公开(公告)日:2021-01-07

    申请号:US16919769

    申请日:2020-07-02

    Abstract: The present disclosure relates generally to the field of medical devices for delivering artificial chordae tendineae in a patient. A system for adjusting tension in an artificial chordae tendineae includes an artificial chordae tendineae coupleable between a clip and an anchor. The clip is engageable with a leaflet of a heart valve while the anchor is engageable with a papillary muscle or heart wall. The anchor includes a body portion, and a locking portion coupleable with the artificial chordae tendineae and configured to allow movement of the artificial chordae tendineae in a first direction while preventing movement of the artificial chordae tendineae in a second direction opposite the first direction. An actuator is coupled to the locking portion for selectively releasing the locking portion to enable selective movement of the artificial chordae tendineae in the second direction.

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