Transcatheter bio-prosthesis member and support structure
An implantable valve replacement system for a cardiovascular valve may include an adjustable stabilizing ring. The stabilizing ring may be composed of a body member that is transitionable from an elongate insertion geometry to an annular operable geometry. The stabilizing ring may further include a plurality of anchors deployable in the annular operable geometry to engage the annulus of the cardiovascular valve. The ring may be used in conjunction with an implantable valve frame. The valve frame may be located within the ring and the ring, in turn, may be stabilized through the anchors engaging the valve annulus. The valve replacement system may be applied by engaging the ring in its annular operable geometry with the valve annulus through the anchors. The valve frame may be inserted through the opening of the ring, thereby forming a stabilizing mechanical contact between the frame and the annulus.
1. An implantable valve system comprising:
an adjustable stabilizing ring comprising:
a body member that is transitionable from an elongate insertion geometry to an annular operable geometry, and
a plurality of anchors deployable in the annular operable geometry to engage the annulus of the cardiovascular valve; and
an implantable valve frame comprising an atrial portion and a ventricle portion, the implantable valve frame is disposed within the body member and is in mechanical communication with an inner surface of the body member,
wherein the elongate insertion geometry is configured to allow percutaneous passage of the stabilizing ring, via a catheter, to a position adjacent to an annulus of a cardiovascular valve,
wherein the annular operable geometry has a closed state to conform to the annulus of the cardiovascular valve,
wherein the implantable valve frame comprises a plurality of locking features that project from the ventricle portion of the implantable valve frame that engages with an outer circumference of the body member to secure the implantable valve frame to the body member of the adjustable stabilizing ring,
wherein the plurality of locking features and the ventricle portion of the implantable valve frame forms a V-shape recess,
wherein the body member of the adjustable stabilizing ring is disposed within the V-shape recess, and
wherein the atrial portion of the implantable valve frame comprises at least one locking feature that projects from the atrial portion of the implantable valve frame and curves downward away from the adjustable stabilizing ring.
2. The implantable valve system of claim 1 , wherein the implantable valve frame comprises one, two, three or four valve leaflets.
3. The implantable valve system of claim 1 , wherein the adjustable stabilizing ring, the implantable valve frame, or both are coated with a pliable material.
4. The implantable valve system of claim 1 , and wherein the atrial portion and the ventricle portion can be angled toward or away from a central axis of the implantable valve frame.
5. The implantable valve system of claim 1 , further comprising an anti-SAM mechanism.
6. The implantable valve system of claim 1 , wherein the implantable valve frame comprises a plurality of elements disposed in a crisscross arrangement.
7. The implantable valve system of claim 1 , wherein the implantable valve frame is at least partially collapsible.
8. The implantable valve system of claim 7 , wherein the implantable valve frame is configured to be delivered via a catheter in an at least partially collapsed state.
9. The implantable valve system of claim 7 , wherein the at least partially collapsible implantable valve frame is self-expandable.
10. The implantable valve system of claim 1 , wherein the adjustable stabilizing ring in the annular operable geometry is rigid or semi-rigid in the closed state.
11. A method of stabilizing a replacement of a cardiovascular valve, the method comprising:
inserting a distal end of a catheter comprising a delivery system into a cardiovascular valve;
guiding, via the delivery system, an adjustable stabilizing ring in an elongate geometry from a proximal end of the catheter to the distal end such that the adjustable stabilizing ring transitions to an annular operable geometry upon exiting the distal end of the catheter;
deploying a plurality of anchors from the adjustable stabilizing ring to engage an annulus of the cardiovascular valve;
guiding an implantable valve frame comprising the replacement of the cardiovascular valve through the cardiovascular valve and through a center of the adjustable stabilizing ring, wherein the implantable valve frame comprises an atrial portion and a ventricle portion; and
engaging at least a portion of the implantable valve frame with the adjustable stabilizing ring, thereby stabilizing a position of the implantable valve frame with respect to the cardiovascular valve,
wherein engaging at least the portion of the implantable valve frame with the adjustable stabilizing ring comprises expanding the implantable valve frame thereby forming a mechanical contact between the implantable valve frame and an inner surface of the adjustable stabilizing ring and extending a plurality of locking features that project from the ventricle portion of the implantable valve frame and engage with an outer circumference of the adjustable stabilizing ring to secure the implantable valve frame to the adjustable stabilizing ring,
wherein the plurality of locking features and the ventricle portion of the implantable valve frame form a V-shape recess,
wherein the body member of the adjustable stabilizing ring is disposed within the V-shape recess, and
wherein the atrial portion of the implantable valve frame comprises at least one locking feature that projects from the atrial portion of the implantable valve frame and curves downward away from the adjustable stabilizing ring.