ELECTROYPHYSIOLOGICAL GUIDANCE AND VISUALIZATION FOR BALLOON, AND METHODS THERAPY AND ASSOCIATED DEVICES, SYSTEMS

    公开(公告)号:WO2021089569A1

    公开(公告)日:2021-05-14

    申请号:PCT/EP2020/080848

    申请日:2020-11-04

    Abstract: Devices, systems, and methods for guiding a balloon therapy procedure by generating and outputting a visualization of the volumetric position of a balloon within an anatomical cavity are provided. For example, in one embodiment, a processor circuit is configured to control a plurality of electrodes to detect an electromagnetic field within the anatomical cavity, and determine, based on the detected electromagnetic field and a geometrical parameter associated with the balloon (e.g., size, shape of the balloon), a location of the balloon within the anatomical cavity. The processor circuit outputs a signal representation of a visualization of the balloon to guide placement of the therapeutic balloon. In some embodiments, the visualization is output to a display with a map of the anatomical cavity. The visualization may be updated based on detected movement of the balloon to provide a real time view of the location of the balloon within the anatomical cavity.

    IMAGING A HOLLOW ORGAN
    6.
    发明申请

    公开(公告)号:WO2021259726A1

    公开(公告)日:2021-12-30

    申请号:PCT/EP2021/066218

    申请日:2021-06-16

    Abstract: The present invention relates to imaging a hollow organ. In order to provide an improved and facilitated imaging of a hollow organ of interest, a device (10) for providing three-dimensional data of a hollow organ is provided that comprises a measurement input (12), a data processor (14) and an output interface (16). The measurement input is configured to receive a plurality of local electric field measurements (18) of at least one electrode on a catheter inserted in a lumen of a hollow organ of interest. The measurement input is also configured to receive geometrical data (20) representative of the location of the at least one electrode inside the lumen during the measurements. The data processor is configured to receive pre-set electric field characteristics (22) associated with predetermined anatomical landmarks of the hollow organ expectable in the lumen in dependency of a type of the hollow organ. The data processor is also configured to compare at least one of the plurality of local electric field measurements with the pre-set electric field characteristics to determine matching electric field measurements. The data processor is further configured to allocate local electric field measurements to matching electric field characteristics based on the geometrical data to identify anatomical landmarks of the hollow organ by identifying those local field measurements in the plurality of measurements that correspond to landmarks of the hollow organ. The data processor is still further configured to generate a three- dimensional image data cloud (24) by transforming the allocated electric field measurements into portions of the three-dimensional image data cloud based on the identified anatomical landmarks. The output interface is configured to provide the three-dimensional image data cloud.

    REFERENCE LOCATION VISUALIZATION FOR ELECTROYPHYSIOLOGICAL MAPPING, AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS

    公开(公告)号:WO2021110630A1

    公开(公告)日:2021-06-10

    申请号:PCT/EP2020/084029

    申请日:2020-12-01

    Abstract: Devices, systems, and methods for visualizing a reference location of an electrophysiology device in an anatomical image are provided. According to one embodiment, an electrophysiological mapping and guidance system includes a processor circuit in communication with a catheter carrying a plurality of electrodes. The processor circuit controls the plurality of electrodes to obtain electrical measurements (e.g., voltage measurements) of an electrical field induced within an anatomical cavity. The processor circuit computes a reference location of the plurality of electrodes based on distortions in the electromagnetic field detected at a first time, computes a current location of the plurality of electrodes based on distortions in the electromagnetic field detected at a later second time, and outputs a signal to cause simultaneous display of a first visualization of the reference location and a second visualization of the current location.

    DEVICES, SYSTEMS AND METHODS FOR ASSISTANCE OF BALLOON ABLATION

    公开(公告)号:WO2021001338A1

    公开(公告)日:2021-01-07

    申请号:PCT/EP2020/068334

    申请日:2020-06-30

    Abstract: Systems, devices, and methods for guiding an ablation procedure are provided. For example, in one embodiment, a system for guiding ablation includes a processor circuit in communication an electrophysiology (EP) catheter comprising a plurality of electrodes. The EP catheter is positioned near an ablation balloon during placement at the ablation site, and is used to detect blood flow within a cavity of the heart by detecting electrical signals relating to dielectric properties. It can then be determined whether any gaps are present at the interface between the balloon and the ablation site. For example, the processor circuit can determine, based on the detected blood flow, whether a balloon occludes a region of interest. The processor then outputs a visualization indicating whether the balloon occludes the region of interest to a display.

    SENSING FOR A CATHETER
    9.
    发明申请

    公开(公告)号:WO2022223417A1

    公开(公告)日:2022-10-27

    申请号:PCT/EP2022/059972

    申请日:2022-04-14

    Abstract: A mechanism for providing a trigger signal that is usable to control the collection of electrode calibration data from a catheter. The trigger signal is responsive to a predictive indicator that indicates a likelihood that the catheter is in contact with the anatomical structure, and in particular examples, that the catheter is completely immersed in blood. The predictive indicator is generated using a ratio between two measurements that change responsive to touching the anatomical structure.

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