When the left ventricle relaxes, the aortic valve cusps reapproximate to prevent the blood which has entered the aorta from leaking (regurgitating) back into ...

... when native heart valves are replaced with prosthetic valves without a stent. ... Prosthetic conduits can be used when the heart valve is separately replaced ...

The purpose of the stent is to maintain a semi-rigid patent channel through the diseased cardiac valve following its implantation. When the components of the ...

For example, when aligning the stents of the invention with a previously implanted bioprosthetic valve, features of the stents can align with the stent rail and ...

Further challenges arise when trying to controllably deliver and secure such prostheses in a location such as at a native mitral valve. SUMMARY OF THE INVENTION ...

That is, while much of the description herein refers to replacement of aortic valves, the stents (and their associated leaflets) of the invention can also ...

... to the other when the two are engaged. In general, any polygonal shape is ... to form stent-less replacement heart valves from biological membranes.

... often used to anchor an annular valve replacement. Additionally, a problem with stent-style replacement valves is that they often continue to have the ...

Though such bioprostheses can be managed with low dose anticoagulation or antiplatelet therapy, they often have failure modes of between 7-12 years either by ...

Heart valve surgery is used to repair or replace diseased heart valves. ... It is therefore often impossible to know where the ends of the stent will be ...

As such patients who must have a dual valve replacement most often undergo open heart ... when attached to respective stent structures 103, 105. In one ...

Heart valve replacement may be indicated when there is a narrowing of the native heart ... Stent and cardiac catheterization to replace a heart valve.

... replacement heart valve assembly 7100 in the upstream direction when exposed to diastolic pressure. The graft material needs to be able to stay intimately ...

An assembly for the tricuspid orifice of a human heart comprising an external frame connected to an internal stent which carries a tricuspid valve bioprosthesis ...

According to one aspect of the disclosure, a prosthetic heart valve includes a stent ... to the right ventricle when the heart valve is implanted in a patient.

... to, or preventing collapsing of, tubular structures of the body, e.g. stents ... When used to form the leaflets 20, the “fuzzy” or fibrous side is assembled ...

... to break when the support stent is subjected to the outward dilatory force. ... can be substituted into any of the stents or stent bands shown. For ...

... to anchor or dock a prosthetic heart valve when valve replacement is planned. ... to the clip when the balloon is inflated and the stent is expanded. It is ...

Although replacement of the diseased cardiac valves is frequently performed with prostheses, replacement ... KG Tube-like stent to replace the aorta ascendens.

The purpose of the stent is to maintain a semi-rigid patent channel through the diseased cardiac valve following its implantation. When the components of the ...