TISSUE EXPANDER WITH EXTENDED INFLATION MECHANISM USING CONTROLLED CHEMICAL REACTION

    公开(公告)号:US20230263612A1

    公开(公告)日:2023-08-24

    申请号:US17678558

    申请日:2022-02-23

    申请人: VIOLOGEN, INC.

    发明人: Sung-Mi LEE

    IPC分类号: A61F2/00

    摘要: Embodiments of the present disclosure relate to a tissue expander that expands in a gradual manner using a controlled release of gas resulting from a chemical reaction of a reactant substance within the tissue expander. The reactant substance is initially in a liquid or solid state and is stored in an internal chamber of the tissue expander. The chemical reaction of the reactant substance produces the gas that causes the tissue expander to expand over time. The tissue expander continues to expand gradually after implanting of the tissue expander within a patient’s body and initiating of the chemical reaction.

    MITRAL OR TRICUSPID HEART VALVE PROSTHESIS
    5.
    发明申请

    公开(公告)号:US20180325662A1

    公开(公告)日:2018-11-15

    申请号:US15773037

    申请日:2015-11-12

    申请人: Valmy Holding

    发明人: Thomas MODINE

    IPC分类号: A61F2/24

    摘要: The disclosed embodiments relate to a mitral or tricuspid heart valve prosthesis that includes. An expansible tubular frame and a prosthetic valve mounted on the frame. The frame includes an atrial portion, a ventricular portion, and an annular portion located between said atrial and ventricular portions, wherein: the atrial portion is made up of three or four metal-wire extensions, regularly distributed on the circumference of said atrial portion and projecting from said annular portion, each extension being made up of a single upside-down U-shaped or V-shaped wire and the various extensions being substantially part of an imaginary truncated sphere placed above said annular portion. The annular portion is made up of diamond meshes which comprise anchoring points; and said ventricular portion is made up of three or four extensions equivalent to the extensions, substantially contained inside an imaginary ovoid shape placed under said annular portion.