PROSTHETIC HEART VALVE HAVING FRAME WITH VARYING STRUT LENGTHS

    公开(公告)号:US20240374384A1

    公开(公告)日:2024-11-14

    申请号:US18780203

    申请日:2024-07-22

    Abstract: A prosthetic heart valve can include a radially expandable and compressible frame and a valvular structure. The frame can include a plurality of circumferentially spaced axial struts, a plurality of pairs of axial posts, and a plurality of rows of angled struts. Each pair of axial posts can be positioned circumferentially between two axial struts. The plurality of rows can include at least a first row, a second row downstream of the first row, a third row downstream of the second row, and a fourth row downstream of the third row. Each of the angled struts can be connected at one end to one of the axial struts and at another end to one of the axial posts. The angled struts of the first and fourth rows can be shorter than the struts of the second and third rows.

    ACTUATION BOLT ASSEMBLY FOR A PROSTHETIC VALVE

    公开(公告)号:US20240366367A1

    公开(公告)日:2024-11-07

    申请号:US18772519

    申请日:2024-07-15

    Abstract: This disclosure is directed to prosthetic heart valves and frames for prosthetic heart valves having actuation assemblies with at least two bolts coupled to each other. The actuation assembly with at least two bolts allow different portions of the actuation assembly to be designed to meet different needs. In one example, the actuation mechanism can include a first bolt coupled end-to-end with a second bolt. The second bolt can have a greater diameter and correspondingly greater mechanical strength than the first bolt. The first bolt can have a lesser diameter suitable for minimizing the thickness of surrounding and adjacent valve frame components. The actuation assembly can also include one or more of a nut, a washer, and a portion designed to attach to components of a delivery system. Also disclosed herein are actuation assemblies including a washer secured by a pin extending through the bolt of the actuation assembly.

    PROSTHETIC VALVES WITH MECHANISMS FOR CONTROLLED EXPANSION

    公开(公告)号:US20240173124A1

    公开(公告)日:2024-05-30

    申请号:US18422384

    申请日:2024-01-25

    CPC classification number: A61F2/2418 A61F2/2439 A61F2250/0021

    Abstract: This disclosure is directed to self-expanding prosthetic heart valves having resistance-based mechanisms to control the rate of self-expansion of the prosthetic heart valves. In some examples, the prosthetic heart valve can be configured to radially self-expand to a partially radially expanded state, and can then be further radially expanded to the radially expanded state and/or locked in the radially expanded state by pulling an actuation member of the expansion and locking assembly. In other examples, the prosthetic heart valve can be configured to self-expand from the radially compressed state to the fully radially expanded state without mechanical actuation. In some examples, the resistance-based expansion control mechanisms can be disposed between delivery system actuators and valve frame components. In other examples, the resistance-based expansion control mechanisms can be disposed between delivery system actuators and other components of the delivery system.

    MECHANICALLY-EXPANDABLE PROSTHETIC HEART VALVES, DELIVERY APPARATUS, AND METHODS

    公开(公告)号:US20240081985A1

    公开(公告)日:2024-03-14

    申请号:US18509778

    申请日:2023-11-15

    CPC classification number: A61F2/2418 A61F2/243 A61F2220/0091

    Abstract: Various examples of prosthetic heart valves, delivery apparatus, and methods of using such are disclosed herein. The prosthetic heart valves comprise frames that are movable between a radially-compressed configuration and one or more radially-expanded configurations. The frames of the prosthetic heart valves include actuation members and locking mechanisms configured to secure the frame in one or more radially-expanded configurations. In some examples, the actuation members and locking members are integrally formed with the frame. The frames of the prosthetic heart valves can be coupled to one or more shafts of a delivery apparatus via a threaded connection or a non-threaded connection.

    PROSTHETIC HEART VALVE LEAFLET COMMISSURE ASSEMBLIES AND METHODS

    公开(公告)号:US20220370198A1

    公开(公告)日:2022-11-24

    申请号:US17881042

    申请日:2022-08-04

    Abstract: An assembly and associated method for a commissure of a prosthetic heart valve is disclosed. As one example, a method includes forming a plurality of commissures with a plurality of leaflets of a prosthetic heart valve, wherein each commissure is formed by: folding each commissure tab of each leaflet into a series of overlapping layers, each folded commissure tab arranged outward of, in a lateral direction, a portion of a body of the leaflet that is directly connected to the commissure tab; pairing each folded commissure tab of each leaflet with a folded commissure tab of another leaflet; and securing at least a portion of the series of overlapping layers of each folded commissure tab in its folded configuration.

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