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Publication Number
US-11446144-B2
Publication Date
2022-09-20
Expiration Date
Abstract
A valve prosthesis, implantation device, and methods for use are provided. The devices described herein may be used for transcatheter delivery of an aortic valve prosthesis or transapical delivery of a mitral valve prosthesis. The implantation device can utilize movable claspers for both positioning and anchoring the valve prosthesis, reducing the extent of imaging needed during the implantation procedure.
Core Innovation
The invention relates to a valve prosthesis that includes a radially expandable support frame having an outer surface and defining a central orifice. Flexible leaflets are attached to permit one-way flow through the orifice in the expanded configuration. The prosthesis further includes a coupling component and a valve clasper movably coupled to the support frame via the coupling component.
The valve clasper is movable relative to the support frame along a longitudinal axis between a nesting position with the outer surface of the support frame and an engagement position with a valve annulus. In the engagement position, the valve clasper is physically separated from the support frame, and the coupling component enables relative motion along the longitudinal axis between the nesting position and the engagement position.
A related embodiment discloses a valve anchor movably coupled to the support frame via the coupling component. The valve anchor is movable along the longitudinal axis between an engagement configuration and a nesting configuration in which the support frame is positioned within the valve anchor, with the valve anchor physically separate from the support frame.
Claims Coverage
The document provides two independent claims. Both define a radially expandable support frame, flexible leaflets for one-way flow, and a coupling component that permits relative movement along a longitudinal axis. The independent claims differ in the movable element used for valve attachment: one uses a valve clasper, and the other uses a valve anchor.
Movably coupled valve clasper with nesting and engagement positions
A valve prosthesis comprising a support frame radially expandable to an expanded configuration, flexible leaflets attached to permit one-way flow through a central orifice when the support frame is in the expanded configuration, a coupling component, and a valve clasper movably coupled to the support frame via the coupling component such that the valve clasper is movable relative to the support frame along a longitudinal axis between a nesting position with the outer surface of the support frame and an engagement position with a valve annulus wherein the valve clasper is physically separated from the support frame.
Movable valve anchor providing engagement and nesting configurations
A valve prosthesis comprising a radially expandable support frame having an outer surface, a central orifice, and a longitudinal axis; flexible leaflets attached to the support frame to permit one-way flow through the orifice when the support frame is in an expanded configuration; a coupling component; and a valve anchor movably coupled to the support frame via the coupling component to permit the valve anchor to be movable relative to the support frame along the longitudinal axis from an engagement configuration to a nesting configuration in which the support frame is positioned within the valve anchor, the valve anchor being physically separate from the support frame.
Across the independent claims, the coverage centers on relative axial movement between an expandable support frame and a physically separate attachment component using a coupling component. This movement is defined between a nesting position/configuration and an engagement position/configuration, while the leaflets are configured for one-way flow through the central orifice when the support frame is expanded.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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