BLOOD PUMPS
    1.
    发明申请

    公开(公告)号:US20250010057A1

    公开(公告)日:2025-01-09

    申请号:US18888529

    申请日:2024-09-18

    Abstract: Apparatus and methods are described for use with a venous system of a subject that includes one or more tributary vessels that flow into a vein at junctions. A blood-pump-catheter includes a material configured to be placed at a downstream location that is downstream of the junctions and to at least partially occlude blood flow through the vein. The material defines a blood-outlet opening. A blood pump pumps blood from a region of the vein that is adjacent to the junctions, and through the blood-outlet opening. A blood-flow pathway directs upstream venous blood flow from an upstream location that is upstream of the junctions, to downstream of the material, without the upstream venous blood flow being pumped by the pump. Other applications are also described.

    BLOOD PUMPS
    2.
    发明申请

    公开(公告)号:US20220218976A1

    公开(公告)日:2022-07-14

    申请号:US17608312

    申请日:2020-05-20

    Abstract: Apparatus and methods are described for use with a venous system of a subject that includes one or more tributary vessels that flow into a vein at junctions. A blood-pump-catheter (70) includes a material (36) configured to be placed at a downstream location that is downstream of the junctions and to at least partially occlude blood flow through the vein. The material defines a blood-outlet opening (31). A blood pump (24) pumps blood from a region of the vein that is adjacent to the junctions, and through the blood-outlet opening (31). A blood-flow pathway (60) directs upstream venous blood flow from an upstream location that is upstream of the junctions, to downstream of the material (36), without the upstream venous blood flow being pumped by the pump (24). Other applications are also described.

    MANUFACTURE OF AN IMPELLER
    8.
    发明申请

    公开(公告)号:US20220072297A1

    公开(公告)日:2022-03-10

    申请号:US17528807

    申请日:2021-11-17

    Abstract: Apparatus and methods are described including manufacturing an impeller by forming a structure having first and second bushings at proximal and distal ends of the structure, the first and second bushings being connected to one another by at least one elongate element. The elongate element is caused to radially expand and form at least one helical elongate element, at least partially by axially compressing the structure. The helical elongate element is coated with a coupling agent configured to enhance bonding between the helical elongate element and an elastomeric layer. The coated helical elongate element is coated with the elastomeric layer. Subsequently, an elastomeric film is coupled to the helical elongate element, such that the helical elongate element with the elastomeric film coupled thereto defines a blade of the impeller. Other applications are also described.

    CENTRIFUGAL AND MIXED-FLOW IMPELLERS FOR USE WITH A BLOOD PUMP

    公开(公告)号:US20230137473A1

    公开(公告)日:2023-05-04

    申请号:US17907618

    申请日:2021-03-29

    Abstract: Apparatus and methods are described including a left-ventricular assist device (20) that includes a pump-outlet tube (28). A mixed-flow impeller (100) is configured to pump blood from a subjects left ventricle to the subjects aorta, by pumping the blood into the pump-outlet tube (28) via one or more blood inlet openings (108) disposed within the left ventricle, and by pumping blood out of the pump-outlet tube (28) via one or more blood outlet openings (30) disposed within the aorta. The mixed-flow impeller (100) includes an expandable portion (116) disposed along its axis and shaped such that a diameter of the expandable portion increases from a distal end of the expandable portion to its proximal end. The mixed-flow impeller (100) is configured to impart radial flow components to blood as the blood flows from its distal end to its proximal end. Other applications are also described.

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