CORROSION-RESISTANT PERMANENT MAGNET FOR AN INTRAVASCULAR BLOOD PUMP

    公开(公告)号:US20220384070A1

    公开(公告)日:2022-12-01

    申请号:US17773924

    申请日:2020-11-10

    发明人: Claudia Mourran

    IPC分类号: H01F1/057 H01F7/02 A61M60/416

    摘要: This invention is directed to a corrosion-resistant permanent magnet, to a method for producing a corrosion-resistant permanent magnet, and to an intravascular blood pump comprising the magnet. The magnet is surrounded by a composite coating, the composite coating comprising, in the order recited, a first metal oxide layer, a metal layer, a second metal oxide layer, a linker layer, and a layer formed from poly(2-chloro-p-xylylene). In an alternative embodiment, a further metal layer and, optionally, a further metal oxide layer may be provided between the second metal oxide layer and the linker layer. In a further alternative embodiment, the metal layer may be omitted, and a further layer structure comprising at least one metal oxide layer, a linker layer, and a layer formed from poly(2-chloro-p-xylylene) may be provided instead.

    CATHETER FOR INTRAVASCULAR BLOOD PUMP

    公开(公告)号:US20210402169A1

    公开(公告)日:2021-12-30

    申请号:US17293383

    申请日:2019-12-06

    摘要: An intravascular blood pump (P) comprises a catheter (5) and a pumping device (1) attached to a distal end (15) of the catheter (5). The blood pump (P) is advanced through a patient's blood vessel by means of the catheter (5). The catheter (5) has an elongate tubular body (10) and a porous three-dimensional structure (6) provided on at least a portion of the outer surface (8) of the catheter body (10) to promote adsorption of proteins and formation of an autologous graft (7) to prevent the catheter (5) from growing into the inner wall of the blood vessel. The porous three-dimensional structure (6) may be formed as a textile sleeve (6), preferably made of a warp knitted fabric.