Systems and methods for reducing pressure at an outflow of a duct

    公开(公告)号:US12179010B2

    公开(公告)日:2024-12-31

    申请号:US18368225

    申请日:2023-09-14

    Abstract: Various systems and methods are provided for reducing pressure at an outflow of a duct such as the thoracic duct or the lymphatic duct. A catheter system can include a catheter shaft configured to be at least partially implantable within a patient's vein, a flexible membrane attached to the catheter shaft, the flexible membrane being a collapsible, tube-like member having a lumen extending therethrough, and a single selectively deployable restriction member formed over a portion of the flexible membrane at substantially a midpoint between a proximal end of the flexible membrane and a distal end of the flexible membrane, the restriction member being configured to control a size of the lumen so as to direct a controlled volume of fluid from an upstream side of the restriction member to a downstream side the restriction member.

    Cost function for response algorithm

    公开(公告)号:US12133977B2

    公开(公告)日:2024-11-05

    申请号:US18057085

    申请日:2022-11-18

    Inventor: D'Anne E. Kudlik

    Abstract: A controller for an implantable blood pump includes processing circuitry configured to initiate a suction response algorithm if a combination of a number of detected suction events multiplied by a suction event variable and a number of non-suction events multiplied by a non-suction event variable exceed a predetermined threshold.

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