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Publication Number
US-12551341-B2
Publication Date
2026-02-17
Expiration Date
Abstract
A valve repair device, e.g., for treating mitral valve regurgitation, includes a tubular body defining a longitudinal axis, paddles supported by the tubular body and movable to change abduction of the paddles relative to the longitudinal axis, and retention members supported by the tubular body proximal the paddles and similarly movable to change abduction of the retention members relative to the longitudinal axis to facilitate capture of native valve leaflets between pairs of paddles and retention members. Movement of the paddles and/or retention members is provided by one or more control mechanisms including a collar a shaft extending within the tubular body. Each shaft is threadedly engaged to a respective collar and coupled to one or more of the movable elements such that, when the collar is rotated, the shaft translates to change abduction of the movable element relative to the longitudinal axis.
Core Innovation
The valve repair system comprises an implantable valve repair device configured to attach to a native heart valve of a patient and a delivery tool configured to deliver the device to a target site for implantation. A tubular body supports paddles and retention members configured to capture valve leaflets to treat regurgitation. Threadedly engaged collars and shafts move the paddle and retention member to change abduction relative to the longitudinal axis.
The described configurations provide simultaneous or independent movement of the paddles and retention members to facilitate leaflet capture. A paddle control mechanism simultaneously changes the abduction of first and second paddles supported by the tubular body, while collar-and-threaded-shaft mechanisms control retention-member movement. This control arrangement facilitates leaflet capture between the paddles and the retention members.
Claims Coverage
The claims include two independent claims covering two valve repair system configurations, encompassing two inventive features.
Threaded collar-and-shaft control of paddle and retention member
Claim 1 recites a tubular body supporting a paddle and a proximal retention member, along with a delivery tool configured to deliver the device to a target site for implantation. A rotatable paddle collar extends within the tubular body and threadedly engages a paddle shaft to translate the shaft and change paddle abduction relative to the longitudinal axis. A rotatable retention member collar threadedly engages a retention member shaft to translate the shaft and change retention member abduction, facilitating capture of a valve leaflet between the paddle and retention member.
Simultaneous paddle abduction control with movable retention members
Claim 16 recites a tubular body supporting first and second paddles and first and second retention members, along with a delivery tool configured for implantation. A paddle control mechanism simultaneously changes the abduction of both paddles relative to the longitudinal axis. A collar-and-threaded-shaft control mechanism changes the abduction of the first retention member to facilitate capture of a valve leaflet between it and the first paddle, while the second retention member is movable to change its abduction.
The two independent claims cover valve repair systems utilizing collar-and-threaded-shaft mechanisms to control component abduction to capture valve leaflets, including configurations with simultaneous paddle movement and retention-member movement, each provided with an implantation delivery tool.
Stated Advantages
The disclosed control is intended to improve implantation accuracy and reliability.
Documented Applications
Repair of a native heart valve to treat regurgitation, including application to a mitral valve.
Attaching the valve repair device to a native valve and delivering the device to a target site for implantation, including delivery via a transfemoral route.
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