MULTI-PIECE BASKET CATHETER COMPRISING HINGES

    公开(公告)号:EP4461248A1

    公开(公告)日:2024-11-13

    申请号:EP24175004.1

    申请日:2024-05-09

    IPC分类号: A61B18/14 A61B5/00

    摘要: The disclosed technology includes a medical probe comprising a tubular shaft including a proximal end and a distal end and an expandable basket assembly coupled to the distal end of the tubular shaft. The basket assembly can comprise a first plurality of spines coupled to the distal end of the tubular shaft and a second plurality of spines, each spine of the second plurality of spines rotatably coupled to a respective spine of the first plurality of spines. The basket assembly can include a plurality of electrodes attached to at least the second plurality of spines and a push rod connected to a distal end of the second plurality of spines. The push rod can be configured to slide longitudinally between a proximal position and a distal position to transition the expandable basket assembly between an expanded configuration and a collapsed configuration.

    CATHETER AND SYSTEM FOR COMBINED ABLATION MODALITIES

    公开(公告)号:EP4450010A1

    公开(公告)日:2024-10-23

    申请号:EP24169840.6

    申请日:2024-04-12

    IPC分类号: A61B18/14 A61B18/00 A61B90/00

    摘要: The disclosed technology includes a system for applying pulsed field ablation to treat atrial fibrillation. The system includes a catheter and a processor. The catheter can include a tip electrode controlled to emit either a pulsed electric field or a radiofrequency signal to biological tissue and ablate one or more locations of biological tissue of the pulmonary vein. The processor is configured to measure a contact force experienced by the tip electrode against biological tissue during pulsed electric field ablation and determine a pulsed field ablation index as a function of the measured contact force and number of pulsed electric field applications for each location of the one or more locations so that it can be determined whether a lesion is sufficiently durable.

    TILT DETECTION FOR A BASKET CATHETER
    10.
    发明公开

    公开(公告)号:EP4393390A1

    公开(公告)日:2024-07-03

    申请号:EP23219875.4

    申请日:2023-12-22

    IPC分类号: A61B5/06 A61B34/20 A61B5/00

    摘要: An electrode location determiner for an electro-anatomical mapping system utilizing a distal assembly. The determiner includes a center of mass calculator, a tilt angle calculator and an electrode position updater. The center of mass calculator calculates a center of mass of the distal assembly from active current locations (ACL) locations of electrodes of the distal assembly. The tilt angle calculator receives output from a sensor having a sensor longitudinal axis aligned along a shaft longitudinal axis of a shaft to which the distal assembly is attached, checks whether or not the shaft longitudinal axis extends through the center of mass and, if not, calculates a tilt angle of the center of mass from the longitudinal axis and a line extending from a position of the sensor and the center of mass. The electrode position updater corrects the ACL locations according to the tilt angle.