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 transitionable between a delivery configuration and a deployed configuration in-situ, the prosthetic valve comprising:
a valve frame subcomponent including a valve frame having a proximal end and a distal end;
an anchor frame subcomponent including an anchor frame having a proximal end and a distal end; and
an interstage defining a tube coupling the proximal end of the valve frame to the distal end of the anchor frame, wherein when situated in the delivery configuration, the valve frame subcomponent and the anchor frame subcomponent are longitudinally offset from one another such that the proximal end of the valve frame subcomponent is situated distal of the distal end of the anchor frame subcomponent;
wherein when transitioned to the deployed configuration in-situ, the interstage is everted and the valve frame subcomponent is at least partially nested within an interior region defined by the anchor frame subcomponent,
wherein the interstage comprises an inner film layer that defines an inner surface of the interstage and an outer film layer that defines an outer surface of the interstage, the inner film layer and the outer film layer being coupled together at least at the proximal end of the valve frame subcomponent and the distal end of the anchor frame subcomponent, the inner film layer defining at least one inner aperture therethrough adjacent the anchor frame subcomponent and the outer film layer defines at least one outer aperture therethrough adjacent the valve frame subcomponent, the inner film layer and the outer film layer being not coupled at least between one of the inner apertures and one of the outer apertures so as to define a flow space therebetween operable to permit blood flow therethrough when the valve frame subcomponent is not nested in the anchor frame subcomponent, and is operable to restrict flow when the valve frame subcomponent is nested within the anchor frame subcomponent.
2. The prosthetic valve of claim 1 , the interstage further comprising a nesting retention element operable to maintain the nested configuration of the anchor frame subcomponent and the valve frame subcomponent.
3. The prosthetic valve claim 1 , the interstage further comprising a nesting retention element in the form of interconnecting struts coupling the proximal end of the valve frame to the distal end of the anchor frame operable to maintain the nested configuration of the anchor frame subcomponent and the valve frame subcomponent.
4. The prosthetic valve of claim 1 , the interstage further comprising a nesting retention element in the form of a continuous sinuous element coupled to the interstage between but not coupled to the proximal end of the valve frame or the distal end of the anchor frame operable to maintain the nested configuration of the anchor frame subcomponent and the valve frame subcomponent.
5. The prosthetic valve of claim 1 , the interstage further comprising a nesting retention element in the form of a plurality of elongated elements coupled to the interstage between but not coupled to the proximal end of the valve frame or the distal end of the anchor frame operable to maintain the nested configuration of the anchor frame subcomponent and the valve frame subcomponent.
6. The prosthetic valve of claim 1 , the interstage further comprising a film or fabric comprising elongated stiffening features operable to maintain the nested configuration of the anchor frame subcomponent and the valve frame subcomponent.
7. The prosthetic valve of claim 1 , the anchor frame further comprising a plurality of tissue anchoring elements operable to engage tissue.
8. The prosthetic valve of claim 1 , further comprising a plurality of leaflets coupled to the valve frame operable to open to allow forward flow therethrough and to occlude the valve frame subcomponent to prevent retrograde flow, wherein the leaflets comprise a composite material including a porous synthetic fluoropolymer membrane defining pores and an elastomer or elastomeric material filling the pores, and TFE-PMVE copolymer comprising from about 27 to about 32 weight percent perfluoromethyl vinyl ether and respectively from about 73 to about 68 weight percent tetrafluoroethylene on at least a portion of the composite material.
9. A prosthetic valve transitionable between a delivery configuration and a deployed configuration in-situ, the prosthetic valve comprising:
a leaflet frame subcomponent comprising a proximal end and a distal end;
an anchor frame subcomponent having a proximal end and a distal end; and
an interstage coupled to the leaflet frame subcomponent and the anchor frame subcomponent,
wherein when situated in the delivery configuration, the leaflet frame subcomponent and the anchor frame subcomponent are longitudinally offset from one another such that the proximal end of the leaflet frame subcomponent is situated distal of the distal end of the anchor frame subcomponent, and
wherein when transitioned to the deployed configuration in-situ, the leaflet frame subcomponent is nested within an interior region defined by the anchor frame subcomponent,
wherein the interstage comprises an inner film layer that defines an inner surface of the interstage and an outer film layer that defines an outer surface of the interstage, the inner film layer and the outer film layer being coupled together at least at the proximal end of the leaflet frame subcomponent and the distal end of the anchor frame subcomponent, the inner film layer defining at least one inner aperture therethrough adjacent the anchor frame subcomponent and the outer film layer defines at least one outer aperture therethrough adjacent the leaflet frame subcomponent, the inner film layer and the outer film layer being not coupled at least between one of the inner apertures and one of the outer apertures so as to define a flow space therebetween operable to permit blood flow therethrough when the leaflet frame subcomponent is not nested in the anchor frame subcomponent, and is operable to restrict flow when the leaflet frame subcomponent is nested within the anchor frame subcomponent.
10. The prosthetic valve of claim 9 , wherein when transitioned to the deployed configuration in-situ the proximal end of the leaflet frame subcomponent is situated proximal of the distal end of the anchor frame subcomponent.
11. The prosthetic valve of claim 9 , the interstage further comprising a nesting retention element operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
12. The prosthetic valve of claim 9 , the interstage further comprising a nesting retention element in the form of interconnecting struts coupling the proximal end of the valve frame subcomponent to the distal end of the anchor frame subcomponent operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
13. The prosthetic valve of claim 9 , the interstage further comprising a nesting retention element in the form of a continuous sinuous element coupled to the interstage between but not coupled to the proximal end of the leaflet frame subcomponent or the distal end of the anchor frame subcomponent operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
14. The prosthetic valve of claim 9 , the interstage further comprising a nesting retention element in the form of a plurality of elongated elements coupled to the interstage between but not coupled to the proximal end of the leaflet frame subcomponent or the distal end of the anchor frame subcomponent operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
15. The prosthetic valve of claim 9 , the interstage further comprising a film or fabric comprising elongated stiffening features operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
16. The prosthetic valve of claim 9 , the anchor frame further comprising a plurality of tissue anchoring elements operable to engage tissue.
17. The prosthetic valve of claim 9 , further comprising a plurality of leaflets coupled to the leaflet frame subcomponent operable to open to allow forward flow therethrough and to occlude the leaflet frame subcomponent to prevent retrograde flow, wherein the leaflets comprise a composite material including a porous synthetic fluoropolymer membrane defining pores and an elastomer or elastomeric material filling the pores, and TFE-PMVE copolymer comprising from about 27 to about 32 weight percent perfluoromethyl vinyl ether and respectively from about 73 to about 68 weight percent tetrafluoroethylene on at least a portion of the composite material.
18. A medical device system comprising:
a catheter; and
a prosthetic valve comprising:
a leaflet frame subcomponent comprising a proximal end and a distal end;
an anchor frame subcomponent; and
an interstage coupled to the leaflet frame subcomponent and the anchor frame subcomponent, the anchor frame subcomponent comprising a proximal end and a distal end,
wherein the prosthetic valve is situated along the catheter in a delivery configuration such that the leaflet frame subcomponent and the anchor frame subcomponent are longitudinally offset from one another such that the proximal end of the leaflet frame subcomponent is situated distal of the distal end of the anchor frame subcomponent,
wherein the prosthetic valve is transitionable to a deployed configuration in-situ such that the leaflet frame subcomponent is nested within an interior region defined by the anchor frame subcomponent,
wherein the interstage comprises an inner film layer that defines an inner surface of the interstage and an outer film layer that defines an outer surface of the interstage, the inner film layer and the outer film layer being coupled together at least at the proximal end of the leaflet frame subcomponent and the distal end of the anchor frame subcomponent, the inner film layer defining at least one inner aperture therethrough adjacent the anchor frame subcomponent and the outer film layer defines at least one outer aperture therethrough adjacent the leaflet frame subcomponent, the inner film layer and the outer film layer being not coupled at least between one of the inner apertures and one of the outer apertures so as to define a flow space therebetween operable to permit blood flow therethrough when the leaflet frame subcomponent is not nested in the anchor frame subcomponent, and is operable to restrict flow when the leaflet frame subcomponent is nested within the anchor frame subcomponent.
19. The prosthetic valve of claim 18 , wherein when transitioned to the deployed configuration in-situ the proximal end of the leaflet frame subcomponent is situated proximal of the distal end of the anchor frame subcomponent.
20. The prosthetic valve of claim 18 , the interstage further comprising a nesting retention element operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
21. The prosthetic valve of claim 18 , the interstage further comprising a nesting retention element in the form of interconnecting struts coupling the proximal end of the valve frame to the distal end of the anchor frame operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
22. The prosthetic valve of claim 18 , the interstage further comprising a nesting retention element in the form of a continuous sinuous element coupled to the interstage between but not coupled to the proximal end of the leaflet frame subcomponent or the distal end of the anchor frame subcomponent operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
23. The prosthetic valve of claim 18 , the interstage further comprising a nesting retention element in the form of a plurality of elongated elements coupled to the interstage between but not coupled to the proximal end of the leaflet frame subcomponent or the distal end of the anchor frame subcomponent operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
24. The prosthetic valve of claim 18 , the interstage further comprising a film or fabric comprising elongated stiffening features operable to maintain the nested configuration of the anchor frame subcomponent and the leaflet frame subcomponent.
25. The prosthetic valve of claim 18 , the anchor frame further comprising a plurality of tissue anchoring elements operable to engage tissue.
26. The prosthetic valve of claim 18 , further comprising a plurality of leaflets coupled to the leaflet frame subcomponent operable to open to allow forward flow therethrough and to occlude the leaflet frame subcomponent to prevent retrograde flow, wherein the leaflets comprise a composite material including a porous synthetic fluoropolymer membrane defining pores and an elastomer or elastomeric material filling the pores, and TFE-PMVE copolymer comprising from about 27 to about 32 weight percent perfluoromethyl vinyl ether and respectively from about 73 to about 68 weight percent tetrafluoroethylene on at least a portion of the composite material.
27. A prosthetic valve transitionable between a delivery configuration and a deployed configuration in-situ, the prosthetic valve comprising:
a valve frame subcomponent including a valve frame having a proximal end and a distal end;
an anchor frame subcomponent including an anchor frame having a proximal end and a distal end; and
an interstage including a tube coupling the proximal end of the valve frame to the distal end of the anchor frame and a nesting retention element between but not coupled to the proximal end of the valve frame or the distal end of the anchor frame,
wherein when the prosthetic valve is in the delivery configuration, the valve frame subcomponent and the anchor frame subcomponent are longitudinally offset from one another such that the proximal end of the valve frame subcomponent is situated distal of the distal end of the anchor frame subcomponent, and
wherein when the prosthetic valve is in the deployed configuration, the interstage is everted and the valve frame subcomponent is at least partially nested within an interior region defined by the anchor frame subcomponent,
wherein the nesting retention element of the interstage is operable to rotate lengthwise from a forward facing orientation to a backward facing orientation during nesting of the valve frame subcomponent with the anchor frame subcomponent to maintain the nested configuration of the anchor frame subcomponent and the valve frame subcomponent when the prosthetic valve is in the deployed configuration.
28. The prosthetic valve of claim 27 , wherein the nesting retention element is a continuous sinuous element.
29. The prosthetic valve of claim 27 , wherein the nesting retention element includes one or more struts.