A mitral valve replacement valve support with positive moment self-locking

Abstract

The present application relates to the technical field of medical devices, in particular to a two-way force moment self-locking mitral valve replacement valve support, comprising a ring-shaped atrial umbrella disc, a plurality of flexible support parts are connected in sequence to form the atrial umbrella disc, the support part is configured as a hollow grid unit with a concave section, the setting of the concave section makes the grid unit form a circumferentially curved outer edge part, and the bending direction of the outer edge part is the instantaneous needle direction; a ring-shaped support anchor disc, a plurality of anchor arms are connected in sequence to form the support anchor disc, the circumferentially curved direction of the anchor arm is the same as the circumferentially curved direction of the outer edge part, and the anchor arm is matched with the grid unit. Its beneficial effect is: a positive moment self-locking effect can be generated, the valve support can continuously wrap and hook the chordae tendineae, and the adhesion force between the valve support and the native valve leaflet can be maintained, the valve displacement and slippage can be prevented, and the risk of paravalvular leakage can be reduced.

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