US 10,478,290 B2 · Expandable stent valve

Abstract

An expandable valve (100) and valve frame device that may be implanted within the body, for example, at a position of the heart. The device may be surgically implanted and subsequently expanded at a later time. The device may include an expandable sewing member (160) surrounding the valve frame (130) at a region between upstream and downstream ends of the device, for attaching the device to surrounding tissue. The device may include a membrane (140) for blocking leakage out the side of the valve frame between opposite ends. However, the membrane may include a side opening (170) for guiding fluid flow toward an appropriate anatomical outflow tract. The device may include a hood-like covering attached to a tissue wall, for smoothly receiving and guiding fluid flow along a perpendicular bend. The device may further include a flared opening at a downstream end, providing adequate space for device attachment.

Claims15

Dependent claims

A device for implantation at a position of a heart, the device comprising:

a valve frame defining a lumen, the valve frame having an upstream end and a downstream end;
a plurality of valve leaflets attached to and disposed within the valve frame;
a sewing member surrounding the valve frame at a region between the upstream end and the downstream end, for forming an attachment to tissue at the position of the heart;
and
a membrane disposed about the valve frame for obstructing fluid flow between the lumen and an external region surrounding the valve frame,
wherein the valve frame is expandable, and a portion of the membrane at a side region of the downstream end of the valve frame comprises an opening that permits fluid flow through the side region.

3 more elements

Dependencies are inferred from the claim text.

Expandable stent valve

Life of this patent

Expandable stent valve

Life of this patent

Abstract

Claims15