Telescoping prosthetic valve and delivery system
An implantable device is disclosed. The device includes a two or three-piece frame assembly that is configured to be delivered in a series configuration and subsequently nested or telescoped in-situ.
1. A prosthetic valve for replacing a native valve of a patient's anatomy, comprising:
an anchor frame subcomponent;
a valve frame subcomponent nestable within the anchor frame subcomponent;
a film disposed about one or more portions of the valve frame subcomponent and the anchor frame subcomponent such that the anchor frame subcomponent is coupled to the valve frame subcomponent at least in part by a contiguous portion of the film, wherein a portion of the contiguous portion of the film is contained between the valve frame subcomponent and anchor frame subcomponent when the valve frame subcomponent is nested within the anchor frame subcomponent; and
a tissue retention feature configured to engage tissue associated with the native valve and to secure the tissue of the native valve between the valve frame subcomponent and the anchor frame subcomponent, wherein the tissue retention feature is positioned between the valve frame subcomponent and the film when the valve frame subcomponent is nested with the anchor frame subcomponent.
2. The prosthetic valve of claim 1 , wherein one or more portions of the anchor frame subcomponent and the valve frame subcomponent overlap one another such that an annular space is defined between the overlapping portions of the valve frame subcomponent and the anchor frame subcomponent when the valve frame subcomponent is nested with the anchor frame subcomponent.
3. The prosthetic valve of claim 2 , wherein the tissue retention feature is configured to secure the tissue associated with the native valve within the annular space.
4. The prosthetic valve of claim 3 , wherein the tissue associated with the native valve includes a leaflet of the native valve.
5. The prosthetic valve of claim 2 , wherein a portion of the tissue retention feature extends radially outwardly from the valve frame subcomponent into the annular space defined between the valve frame subcomponent and the anchor frame subcomponent when the valve frame subcomponent is nested with the anchor frame subcomponent.
6. The prosthetic valve of claim 1 , wherein the tissue retention feature is integral with the valve frame subcomponent.
7. The prosthetic valve of claim 1 , wherein the tissue retention feature is distinct from and coupled to the valve frame subcomponent.
8. The prosthetic valve of claim 1 , wherein the prosthetic valve is transitionable between a compressed configuration for transcatheter delivery and an expanded configuration wherein the prosthetic valve is operable to replace a native valve of a patient's anatomy.