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    Catheter with irrigated tip electrode with porous substrate and high density surface micro-electrodes
    81.
    发明授权
    Catheter with irrigated tip electrode with porous substrate and high density surface micro-electrodes 有权

    公开(公告)号：US10390880B2

    公开(公告)日：2019-08-27

    申请号：US16049737

    申请日：2018-07-30

    Applicant: Biosense Webster (Israel) Ltd.

    Inventor： Athanassios Papaioannou ,  Christopher Thomas Beeckler ,  Assaf Govari

    IPC: A61B18/14 ,  A61B5/042 ,  A61B5/00 ,  A61B18/00

    Abstract: A catheter has a multifunctional “virtual” tip electrode with a porous substrate and a multitude of surface microelectrodes. The surface microelectrodes are in close proximity to each other and in a variety of configurations so as to sense tissue for highly localized intracardiac signal detection, and high density local electrograms and mapping. The porous substrate allows for flow of conductive fluid for ablating tissue. The surface microelectrodes can be formed via a metallization process that allows for any shape or size and close proximity, and the fluid “weeping” from the porous substrate provides more uniform irrigation in the form of a thin layer of saline. The delivery of RF power to the catheter tip is based on the principle of “virtual electrode,” where the conductive saline flowing through the porous tip acts as the electrical connection between the tip electrode and the heart surface. The substrate and the surface electrodes are constructed of MRI compatible materials so that the physician can conduct lesion assessment in real time during an ablation procedure. The surface electrodes include noble metals, including, for example, platinum, gold and combinations thereof.

    VIBRATING CATHETER FOR RADIO-FREQUENCY (RF) ABLATION
    84.
    发明申请
    VIBRATING CATHETER FOR RADIO-FREQUENCY (RF) ABLATION 审中-公开

    公开(公告)号：US20190059993A1

    公开(公告)日：2019-02-28

    申请号：US15692173

    申请日：2017-08-31

    Applicant: Biosense Webster (Israel) Ltd.

    Inventor： Christopher Thomas Beeckler ,  Andres Claudio Altmann

    IPC: A61B18/14

    Abstract: A medical instrument includes a shaft, multiple electrodes and a vibration generator. The shaft is configured for insertion into a body of a patient. The multiple electrodes are fitted at a distal end of the shaft and are configured to deliver Radio Frequency (RF) energy for ablation at multiple respective locations in tissue. The vibration generator is configured to vibrate the multiple electrodes for providing cooling to the tissue in a vicinity of the locations.

    DETECTION OF LEAKAGE IN IMPLANTS
    87.
    发明申请
    DETECTION OF LEAKAGE IN IMPLANTS 审中-公开

    公开(公告)号：US20180085210A1

    公开(公告)日：2018-03-29

    申请号：US15274107

    申请日：2016-09-23

    Applicant: Biosense Webster (Israel) Ltd.

    Inventor： Assaf Govari ,  Christopher Thomas Beeckler ,  Yehuda Algawi ,  Yaron Ephrath

    IPC: A61F2/12

    CPC classification number: A61F2/12 ,  A61B5/0538 ,  A61B5/686 ,  A61B5/6867 ,  A61F2210/0076 ,  A61F2230/0071 ,  A61F2240/002 ,  A61F2250/0003 ,  A61F2250/008 ,  G01M3/187

    Abstract: An implant includes a hollow biocompatible shell, first and second electrodes, filling material, and circuitry. The hollow biocompatible shell is configured to be implanted in an organ of a patient. The first electrode is disposed inside the shell. The second electrode has at least one surface disposed outside the shell. The filling material, which includes carbon nanotubes (CNT), fills the shell and is configured, in response to a rupture occurring in the shell, to change a spatial orientation of the CNT and thus to cause a change in electrical conductivity of the filling material between the first electrode and the rupture. The circuitry is electrically connected to the first and second electrodes and is configured to detect the rupture by sensing the change in the electrical conductivity of the CNT, and to produce an output indicative of the detected rupture.

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