6 results about "Cardiac 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.

Systems and methods of atrioventricular valve replacement are provided. In various embodiments, an arch-like support structure is provided that is insertable and implantable into a heart and is positioned in the mitral annulus to replace a native mitral valve. The support structure is operable to support, and various systems comprise leaflet and chord structures operable to control and regular blood flow between chambers of the heart.

The present invention relates to mitral valve repair and replacement devices and methods. An implant and method for repairing and / or replacing the function of a native mitral valve, in various embodiments, is configured to reduce or eliminate mitral regurgitation and residual mitral valve leakage. A coiled anchor with a central turn that reduces in size after implantation is used to approximate the native mitral annulus size and reshape the native mitral annulus to reduce valve leakage. A clip can be further applied to the native valve leaflets to reduce the size of the native mitral annulus and reduce leakage therethrough. An artificial heart valve can be implanted in the coiled anchor to replace and further improve the function of the valve. In some cases, an artificial valve can be implanted in the clipped valve, with the clip detached from one of the native valve leaflets to provide space for the artificial valve to expand.

A replacement heart valve includes a self-expanding frame having an upstream end and a downstream end. A plurality of anchors extends from the downstream end of the frame. A valve skirt is attached to the frame and a valve body is attached to the valve skirt, wherein the valve body includes leaflets for providing one-way flow through the replacement valve. The frame preferably includes a plurality of connector eyelets sized to receive at least one tether. The replacement heart valve is radially collapsible for delivery within a delivery device and radially expandable for engaging a native heart valve annulus upon release from the delivery device. The tether may be used to control expansion and / or adjust the diameter of the replacement heart valve during deployment.

The present application relates to a multi-part replacement heart valve prosthesis. The replacement mitral valve prosthesis includes a support structure and a valve body having three flexible leaflets. The support structure preferably includes an inner valve frame and an outer sealing frame. The valve frame supports the flexible leaflets. The sealing frame is adapted to conform to the shape of a native mitral annulus. The sealing frame can be coupled to an inlet end of the valve frame, an outlet end of the valve frame, or both. A plurality of anchors are coupled to the outlet end of the valve frame. The anchors extend radially outward to be disposed behind native leaflets. The prosthesis preferably includes a skirt disposed along an exterior of the outer sealing frame. The prosthesis is collapsible for delivery into the heart by a delivery catheter. The prosthesis is configured to self-expand for deployment in the heart upon release from the delivery catheter.

Methods of delivering and using an annuloplasty ring to reshape a valve annulus are disclosed. The methods include obtaining an annuloplasty ring having an elastic inner core member. The elastic inner core member can be defined by a multi-stranded braided cable. The inner core member has an unstressed closed or open ring shape and a first elastic modulus that enables the core member to be compressed from the unstressed ring shape into a stressed narrow shape and enables the annuloplasty ring to reshape a native heart valve annulus. The methods can include converting the annuloplasty ring from the unstressed ring shape into the stressed narrow shape, passing the annuloplasty ring through an access tube positioned with a distal tip adjacent a native valve annulus, and expelling the annuloplasty ring from the distal tip of the access tube so that it self-converts back towards the unstressed ring shape.