Devices, systems and methods for delivering a prosthetic mitral valve and anchoring device
Prosthetic heart valves and anchors for use with such valves are provided that allow for an improved implantation procedure. In various embodiments, an anchoring device is formed as a coiled or twisted anchor that includes one or more turns that twist or curve around a central axis. One or more arms attached to the frame of the valve guide the anchoring device into position at the native valve as it exits the delivery catheter, and the expandable prosthetic valve is held within the coil of the anchoring device. The anchoring device and the valve can be delivered together, simplifying the valve replacement procedure.
1. A valve prosthesis configured to be implanted at a native valve of a heart, comprising:
an expandable prosthetic valve frame;
a first arm connected to and extending from a first end of the valve frame;
a second arm connected to and extending from the first end of the valve frame;
wherein the entire first arm and the entire second arm are shaped differently from one another; and
an anchoring device comprising a coil configured to define an inner space for receiving the valve frame, wherein only one of the first arm or the second arm is configured to deploy and guide the anchoring device around the valve frame.
2. The valve prosthesis of claim 1 , wherein the first arm differs from the second arm in that the first arm comprises a closed annulus that defines an opening through which an anchoring device is guided.
3. The valve prosthesis of claim 1 , wherein the first arm differs from the second arm in that the first arm comprises a hollow tube through which an anchoring device is guided.
4. The valve prosthesis of claim 1 , wherein the first arm is of a heavier construction than the second arm.
5. The valve prosthesis of claim 1 , further comprising at least a third arm having a same shape as the second arm.
6. The valve prosthesis of claim 1 , wherein the valve frame houses a plurality of prosthetic valve leaflets.
7. A valve prosthesis configured to be implanted at a native valve of a heart, comprising:
an expandable prosthetic valve frame having a central axis;
an arm connected to the valve frame; and
an anchoring device comprising a coil configured to define an inner space for receiving the valve frame, wherein the arm is configured to deploy and guide the anchoring device around the valve frame;
wherein when the valve prosthesis is implanted at a native valve, the anchoring device is configured to be detached from the arm, and the arm is configured to extend farther away radially from the central axis than the anchoring device extends from the central axis.
8. The valve prosthesis of claim 7 , wherein a first portion of the arm extends axially away from a first end of the valve frame and a second portion of the arm extends axially from the first portion back towards the valve frame.
9. The valve prosthesis of claim 7 , wherein the arm comprises a closed annulus that defines an opening through which an anchoring device is guided.
10. The valve prosthesis of claim 7 , wherein the arm is a first arm, and wherein the valve prosthesis further comprises at least a second arm connected to the valve frame.
11. The valve prosthesis of claim 10 , wherein the first arm is of a heavier construction than the second arm.
12. The valve prosthesis of claim 7 , wherein the valve frame houses a plurality of prosthetic valve leaflets.