METHOD TO FIND ABNORMAL ACTIVATIONS IN INTRA-CARDIAC ELECTROCARDIOGRAMS

    公开(公告)号:US20210145301A1

    公开(公告)日:2021-05-20

    申请号:US16685496

    申请日:2019-11-15

    IPC分类号: A61B5/0472 A61B5/042

    摘要: Methods, apparatus, and systems for medical procedures are disclosed herein and include detecting points of an intra-cardiac area that exhibits abnormal activations, such as local abnormal ventricular activations (LAVAs). Points that exhibit such abnormal activations may be referred to as seed points that are identified during a first step of the process disclosed herein. The seed points may be identified using one or more inputs such as unipolar and bipolar mapping channels, body surface ECGs, past activations, neighboring points and the like during the first step which prioritizes high specificity over sensitivity. During a second step which prioritizes high sensitivity, electrical activations of neighboring points near the seed points are analyzed to determine if the activations are similar (e.g., have a similar time) as the abnormal activations corresponding to the corresponding seed points.

    OCCLUSION DETECTION BY PRESSURE MEASUREMENT
    8.
    发明申请

    公开(公告)号:US20200205840A1

    公开(公告)日:2020-07-02

    申请号:US16720978

    申请日:2019-12-19

    IPC分类号: A61B17/12

    摘要: A system, device and method for left atrial appendage occlusion detection is disclosed. The system for occlusion detection comprises a sheath; a delivery system comprising: a delivery catheter extending between a proximal end and a distal end; and a handle coupled to the proximal end of the delivery catheter; a medical tool coupled to a distal end of the delivery catheter at a target location within a portion of an organ of a patient, the medical device comprising a hub including a bore defining an axis, an occluder portion coupled to the hub and an anchor portion extending between a first end and a second end; at least one pressure sensor configured to measure a pressure of the target cavity while blood is suctioned form inside the left atrial appendage; and at least one processor configured to process the pressure measurement acquired from the at least one pressure sensor.