VALVE STENT FOR INTRAVASCULAR REPERFUSION THERAPY

    公开(公告)号:US20240285407A1

    公开(公告)日:2024-08-29

    申请号:US18693487

    申请日:2022-09-19

    Abstract: A system includes a stent positionable within a coronary vein. The stent includes a valve and a stent body coupled to the valve and arranged to transition between a collapsed state and an expanded state. The system includes an intravascular reperfusion therapy device with a sensor and a catheter with a lumen shaped to receive the stent. The intravascular reperfusion therapy device delivers reperfusion therapy to a myocardium of a heart. The system includes a processor circuit that receives physiological data from the sensor, determines a progression of the reperfusion therapy, controls a configuration of the valve and/or the expansion state of the stent such that back pressure is controlled. With the stent in the expanded state, the stent body contacts a wall of the coronary vein and the valve obstructs blood flow in a first direction to generate the back pressure in an opposite, second direction.

    COVER FOR PROSTHETIC VALVE EXPANSION MECHANISM

    公开(公告)号:US20240285404A1

    公开(公告)日:2024-08-29

    申请号:US18649749

    申请日:2024-04-29

    CPC classification number: A61F2/2436 A61F2/2418 A61F2/243

    Abstract: An implantable prosthetic device including a radially expandable and compressible frame having an inflow end portion and an outflow end portion. The frame including an actuator mechanism having a first frame member with a first inner bore and a second frame member with a second inner bore, the first and second frame members being spaced apart axially from one another, an actuator extending through the first and second inner bores, and a compressible cover member disposed over a portion of the actuator extending between the first and second frame members. Rotation of the actuator in a first direction causes the first and second frame members to move axially toward one another to expand the frame.

    RADIALLY EXPANDABLE PROSTHETIC DEVICE
    27.
    发明公开

    公开(公告)号:US20240277473A1

    公开(公告)日:2024-08-22

    申请号:US18645284

    申请日:2024-04-24

    CPC classification number: A61F2/243 A61F2/2418 A61F2250/001

    Abstract: A prosthetic device, such as a prosthetic heart valve, can include a radially compressible and expandable frame and a screw actuator that is coupled to the frame and configured to be rotated to radially expand the frame from a radially compressed state to a first radially expanded state. The frame includes an over-expansion structure that is configured to allow relative sliding movement between the screw actuator and the frame in a longitudinal direction to permit the frame to radially expand from the first radially expanded state to a second radially expanded state when an external expansion force applied to the prosthetic heart valve exceeds a predetermined force.

    Implant tissue protection tool
    28.
    发明授权

    公开(公告)号:US12064362B2

    公开(公告)日:2024-08-20

    申请号:US17668167

    申请日:2022-02-09

    CPC classification number: A61F2/9524 A61F2/2418 A61F2/2436

    Abstract: Novel tools and techniques are provided for implementing protection of at least one tissue layer of a medical device or implant during crimping of the medical device or implant. In various embodiments, an implant tissue protection tool may include an outer portion configured to surround one or more outer segments of at least one tissue layer of a medical device to be implanted into a body of a subject and at least one protrusion (which may be affixed to a surface of the outer portion) configured to minimize or prevent occurrence (or likelihood of occurrence) of the at least one tissue layer (in some cases, leaflet material, or the like) of the medical device passing through at least one opening defined by a frame structure of the medical device during crimping of the medical device by a crimping device in preparation for implantation into the body of the subject.

    Prosthetic heart valve
    29.
    发明授权

    公开(公告)号:US12064347B2

    公开(公告)日:2024-08-20

    申请号:US18090058

    申请日:2022-12-28

    Abstract: A prosthetic valve is provided that includes a tubular valve body and a plurality of prosthetic leaflets disposed within a lumen of the valve body. The valve body includes struts arranged in a cellular structure defined by first and second circumferential rows of four-sided closed cells. Each of the four-sided closed cells is defined by some of the struts, which are shaped so as to collectively define the following four sides: a left upstream side, a right upstream side, a left downstream side, and a right downstream side. The struts are joined at four corners of the four-side closed cell. Each of the four sides of each of the four-sided closed cells is double-strutted. Other embodiments are also described.

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