Stented prosthetic heart valve having a wrap and delivery devices
Stented prosthetic heart valves comprising a stent frame having a compressed arrangement for delivery within a patient's vasculature and an expanded arrangement for deployment within a native heart valve. The stented prosthetic heart valves including a paravalvular leakage prevention or mitigation wrap that encircles a stent frame and is formed of a flexible material having a variable diameter defined by a greatest distance between the wrap and the stent frame. The wrap further includes a first end coupled to the stent frame and an opposing second end that is not coupled to the stent frame, wherein the wrap can selectively enlarge its diameter in situ via movement of the second end. Devices for and methods of selectively deploying the wrap are also disclosed.
1. A stented prosthetic heart valve comprising:
a stent frame having a compressed arrangement for delivery within a vasculature and an expanded arrangement for deployment within a native heart valve;
valve leaflets disposed within and secured to the stent frame;
a wrap encircling the stent frame and formed of a flexible material having a first end and a second end; the wrap having a delivery position and a deployed position in which the first end and the second end are positioned closer together as compared to the delivery position; wherein the wrap can be actuated from the delivery position to the deployed position so that the wrap bulges outwardly independently of the arrangement of the stent frame; wherein, in both of the delivery and deployed positions the second end is distal to the first end; and
a tether secured to the wrap; wherein the wrap is configured so that the wrap can be actuated by tensioning the tether; further wherein the tether can be selectively disconnected from the wrap and the stented prosthetic heart valve is configured such that the wrap remains in the deployed position after the tether is disconnected.
2. The stented prosthetic heart valve of claim 1 , further comprising a coupling element configured to maintain the in the deployed position.
3. The stented prosthetic heart valve of claim 1 , the first end of the wrap coupled to the stent frame and the second end of the wrap is not coupled to the stent frame, wherein a diameter of the wrap can selectively be enlarged via movement of the second end.
4. The stented prosthetic heart valve of claim 1 , wherein the second end moves in the direction of the valve leaflets.
5. The stented prosthetic heart valve of claim 1 , wherein the stent frame has a first end and a second end; wherein the stented prosthetic heart valve is configured such that the wrap is in the deployed position when the tether is tensioned; the first end of the wrap coupled to the stent frame and the second end of the wrap is not coupled to the stent frame, wherein a diameter of the wrap can selectively be enlarged via movement of the second end of the wrap longitudinally between the first and second ends of the stent frame.
6. The stented prosthetic heart valve of claim 1 , wherein the tether is one of a plurality of tethers.
7. The stented prosthetic heart valve of claim 1 , wherein the tether extends through an opening in the flexible material.
8. The stented prosthetic heart valve of claim 1 , wherein an end of the tether includes a pigtail curve.
9. A stented prosthetic heart valve comprising:
a stent frame having a compressed arrangement for delivery within a vasculature and an expanded arrangement upon deployment within a native heart valve;
valve leaflets disposed within and secured to the stent frame; and
a wrap encircling the stent frame and formed of a flexible material having a first end and a second end, the flexible material having a variable diameter defined by a greatest distance between any two opposing points on the wrap; wherein the wrap has a delivery position; wherein the wrap includes a tether secured to the flexible material and routed through the stent frame; wherein the wrap is configured to have a deployed position in which a diameter of the wrap can selectively be enlarged in situ by moving the tether through the frame so that a shortest distance between the first and second end is shortened; wherein in both of the delivery and deployed positions the second end is distal to the first end; further wherein the tether can be selectively disconnected from the wrap and the stented prosthetic heart valve is configured such that the wrap remains in the deployed position after the tether is disconnected.
10. The stented prosthetic heart valve of claim 9 , further comprising a coupling element configured to maintain the wrap in the deployed position.
11. The stented prosthetic heart valve of claim 9 , the first end of the flexible material coupled to the stent frame and the second end of the flexible material is not coupled to the stent frame, wherein the diameter of the wrap can selectively be enlarged via movement of the second end.
12. The stented prosthetic heart valve of claim 9 , wherein the deployed position of the wrap can be actuated independently of the compressed or expanded arrangement of the stent frame.
13. The stented prosthetic heart valve of claim 9 , wherein the second end moves in the direction of the valve leaflets.
14. The stented prosthetic heart valve of claim 9 , wherein the tether is one of a plurality of tethers.
15. The stented prosthetic heart valve of claim 9 , wherein the tether extends through an opening in the flexible material.
16. The stented prosthetic heart valve of claim 9 , wherein an end of the tether includes a pigtail curve.