8 results about "Mitral Valve Annulus" patented technology

A mitral valve prosthesis to be implanted in a heart, comprises an asymmetrical ring, the asymmetrical ring is dimensioned to mimic a native mitral annulus of a patient; an anterior flexible leaflet and a posterior flexible leaflet, said leaflets suspended from the asymmetrical ring and configured to substantially coapt with each other; and at least four sets of cords, each set of cords attached to the anterior or posterior leaflet on a first end and attached into a cap on a second end, the cap is configured to be attached onto papillary muscles of the heart on another end of the cap.

A replacement mitral valve prosthesis includes a support structure and a valve body having three flexible leaflets. The support structure preferably includes an internal valve frame and an external sealing frame. The valve frame supports the flexible leaflets. The sealing frame is adapted to conform to the shape of the native mitral valve annulus. The sealing frame may be coupled to an inlet end of the valve frame, an outlet end of the valve frame, or both. A plurality of anchors is coupled to the outlet end of the valve frame. The anchors extend radially outwardly for placement behind native leaflets. The prosthesis preferably includes a skirt disposed along an exterior of the external sealing frame. The prosthesis is collapsible for delivery into the heart via a delivery catheter. The prosthesis is configured to self-expand for deployment in the heart when released from the delivery catheter.

Provided are devices and methods for augmenting mitral valve function. A cardiac valve prosthesis device comprises a stent frame assembly having an atrial portion and a ventricular portion, a peripheral ring attached to the stent frame assembly, which divides the stent frame assembly into the atrial and ventricular portions, and a plurality of valve leaflets fixedly coupled to the stent frame assembly. The peripheral ring fits over a native mitral valve annulus when the prosthesis device is implanted in a native mitral valve. The peripheral ring limits the protrusion of the stent frame assembly into a ventricular chamber and reduces the effect on ventricular outflow or excursion of a native leaflet by such protrusion.

Mitral valve prolapse and mitral regurgitation can be treating by implanting in the mitral annulus a transvalvular implant. The transvalvular implant has a first end, a first anchoring portion located proximate the first end, a second end, a second anchoring portion located proximate the second end, and a central portion. The transvalvular implant can include a wire form curved body The transvalvular implant can include eyelets and the center of the transvalvular implant can include an opening. The central portion can be positioned so that it extends transversely across a coaptive edge formed by the closure of the mitral valve leaflets. Tricuspid regurgitation can be treated by implanting in the tricuspid annulus a transvalvular bridge. The transvalvular bridge can have a first anchoring portion and a second anchoring portion. The transvalvular bridge can positioned so that the bridge extends transversely across a coaptive edges formed by the closure of the leaflets. The transvalvular bridge can be positioned between a midpoint of the anterior annulus and straddling the commissure between the posterior annulus and the septal annulus. The transvalvular bridge can be anchored to the anterior annulus, the posterior annulus, and the septal annulus.

The method, device and application of left atrial partitioning can realize the geographic calibration of electrophysiological analysis, achieve 100% repeatability, and easily perform independent in-depth analysis of each subregion of the left atrium, realizing the regional and refined depiction of the atrial fibrillation matrix. The method includes: (1) importing high-density mapping point cloud data exported from mainstream electrophysiological systems, including electrical parameters such as X, Y, Z coordinates, voltage, and activation time; (2) identifying key feature structures in the point cloud data, including the boundaries of the left pulmonary vein ablation circle, the right pulmonary vein ablation circle, the mitral valve annulus region, and the left atrial appendage region, and using these as the basic anchor points for partitioning; (3) constructing three-dimensional spatial geometric rules to unambiguously assign each data point to one of the anatomical regions; (4) outputting a new point cloud dataset with clear regional labels and generating statistical reports for each partition, or visually displaying three-dimensional models of partitions with different color codes.

This invention provides a mitral valve annulus retraction device and system, relating to the field of medical device technology. The mitral valve annulus retraction device includes multiple connecting tubes, which are sequentially connected through annulus retraction nodes to form a forming tube. Both ends of the forming tube are provided with annulus retraction nodes. Each annulus retraction node includes an annulus retraction locking component and a positioning puncture component. The positioning puncture component includes a locking block. The annulus retraction locking component includes a locking sleeve, the sidewall of which has at least one locking groove spaced circumferentially. The locking block is disposed within the locking sleeve and engaged within the locking groove, which restricts unidirectional movement of the locking block within the locking sleeve. This invention solves the problem in existing technologies where the annulus retraction ring cannot effectively counteract ventricular contraction forces for a long period, resulting in the inability to maintain the therapeutic effect for an extended period. It provides stable positioning and can maintain the therapeutic effect for a longer time.

In some embodiments, a method includes delivering to a native valve annulus (e.g., a native mitral valve annulus) of a heart a prosthetic heart valve having a body expandable from a collapsed, delivery configuration to an expanded, deployed configuration. The method can further include, after the delivering, causing the prosthetic heart valve to move from the delivery configuration to the deployed configuration. With the prosthetic heart valve in its deployed configuration, an anchor can be delivered and secured to at least one of a fibrous trigone of the heart or an anterior native leaflet of the native valve. With the prosthetic heart valve disposed in the native valve annulus and in its deployed configuration, an anchoring tether can extending from the anchor can be secured to a wall of the heart to urge the anterior native leaflet towards the body of the prosthetic heart valve.