Stent for Prosthetic Heart Valves

• US 20160296327A1
• Filed: 04/14/2016
• Published: 10/13/2016
• Est. Priority Date: 01/24/2008
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Tabor, Charles, Ryan, Timothy R., Young, Melissa R., Awad, Maria, Eberhardt, Carol E., Majkrzak, Carolyn, Shay, Janice L.
• Granted Patent: US 10,758,343 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2403 with pivoting rigid closure members check valves with hinged closure members in general F16K15/03
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2220/0091 connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0054 : V-shaped
• CPC Class Codes: A61F 2230/008 : paraboloidal
• CPC Class Codes: A61F 2250/0018 : differing in elasticity, stiffness or compressibility
• CPC Class Codes: A61F 2250/003 : differing in adsorbability or resorbability, i.e. in adsorption or resorption time
• CPC Class Codes: A61F 2250/0039 : differing in diameter
• CPC Class Codes: A61F 2250/0098 : radio-opaque, e.g. radio-opaque markers

Abstract

A stented valve including a stent structure including a generally tubular body portion having a first end, a second end, an interior area, a longitudinal axis, and a plurality of vertical wires extending generally parallel to the longitudinal axis around a periphery of the body portion, wherein the plurality of vertical wires includes multiple commissure wires and at least one structural wire positioned between adjacent commissure wires, and a plurality of V-shaped wire structures having a first end, a second end, and a peak between the first and second ends, wherein a first end of each V-shaped structure extends from a first vertical wire and a second end of each V-shaped structure extends from a second vertical wire that is adjacent to the first vertical wire, wherein each V-shaped structure is oriented so that its peak is facing in the same direction relative to the first and second ends of the body portion, and a valve structure including a plurality of leaflets attached to the stent structure within the tubular body portion.

Claims

1-15. -15. (canceled)

16. :

A prosthetic valve comprising;

a valve support including,

a first end,

a second end,

an interior area,

a longitudinal axis,

a plurality of posts extending generally parallel to the longitudinal axis around a periphery of the valve support, wherein the plurality of posts include a plurality of commissure posts, and

a plurality of struts extending circumferentially around the longitudinal axis and connecting the plurality of posts together;

an outer member attached to the first end or the second end of the valve support, the outer member having a free end not attached to the valve support;

an annular space disposed between an outer surface of the valve support and an inner surface of the outer member; and

a valve structure attached within the valve support.

17. :

The prosthetic valve of claim 16, wherein the valve structure includes a plurality of leaflets, wherein each leaflet is attached at a first end to a first commissure post of the plurality of commissure posts and is attached at a second end to a second commissure post of the plurality of commissure posts.

18. :

the prosthetic valve of claim 16, wherein the valve structure includes a plurality of leaflets, wherein a first end of a first leaflet of the plurality of leaflets is attached to a first commissure post of the plurality of commissure posts, and wherein a second end of a second leaflet of the plurality of leaflets is attached to the first commissure post.

19. :

The prosthetic valve of claim 18, wherein a second end of the first leaflet is attached to a second commissure post of the plurality of commissure posts, wherein a first end of the second leaflet is attached to the second commissure post.

20. :

The prosthetic valve of claim 18, wherein a second end of the first leaflet is attached to a second commissure post of the plurality of commissure posts, wherein a first end of a third leaflet is attached to a second commissure post of the plurality of commissure posts, wherein a second end of the third leaflet is attached to a third commissure post of the plurality of commissure posts, and wherein a first end of the second leaflet is attached to the third commissure post.

21. :

The prosthetic valve of claim 16, wherein the outer member comprises a sealing skirt.

22. :

A prosthetic valve comprising;

a valve support including,

a first end,

a second end,

an interior area,

a longitudinal axis,

a plurality of posts extending generally parallel to the longitudinal axis around a periphery of the valve support, wherein the plurality of posts include a plurality of commissure posts, wherein each of the plurality of commissure posts includes a first strut parallel to the longitudinal axis and a second strut parallel to the longitudinal axis, wherein the first strut and the second strut are spaced circumferentially from each other to form a longitudinal gap between the first strut and the second strut, and

a plurality of struts extending circumferentially around the longitudinal axis and connecting the plurality of posts together; and

a valve structure attached within the valve support to the plurality of commissure posts.

23. :

The prosthetic valve of claim 22, wherein the valve support further includes a plurality of transverse members extending across the longitudinal gap between the first strut and the second strut of respective commissure posts of the plurality of commissure posts, wherein the plurality of transverse members are spaced longitudinally such that the longitudinal gap is separated into a plurality of longitudinal gaps.

24. :

The prosthetic valve of claim 22, wherein each of the plurality of struts extending circumferentially includes a first end coupled to a first post of the plurality of posts, a second end coupled to a second post of the plurality of posts adjacent to the first post, and at least one peak between the first end and the second end.

25. :

The prosthetic valve of claim 24, wherein each peak extends towards the first end of the valve support.

26. :

The prosthetic valve of claim 22, wherein the plurality of struts extending circumferentially around the longitudinal axis includes a plurality of rows of struts, the plurality of rows spaced longitudinally from each other.

27. :

The prosthetic valve of claim 22, further comprising an outer member attached to the first end or the second end of the valve support, an inner surface of the outer member being spaced radially from an outer surface of the valve support.

28. :

The prosthetic valve of claim 27, wherein the outer member includes a first end attached to the first end or second end of the valve support and a second end not attached to the valve support.

29. :

The prosthetic valve of claim 27, wherein the outer member is a sealing skirt.

30. :

A prosthetic valve comprising;

a valve support structure including a first end, a second end, an interior area, a longitudinal axis, and a plurality of longitudinal wires extending generally parallel to the longitudinal axis around a periphery of the valve support structure, wherein the plurality of longitudinal wires includes multiple commissure structures and at least one structural wire positioned between adjacent commissure structures, and at least three rows of V-shaped wire structures having a first end, a second end, and a peak between the first and second ends, wherein a first end of each V-shaped structure extends from a first longitudinal wire and a second end of each V-shaped structure extends from a second longitudinal wire that is adjacent to the first longitudinal wire; and

a valve structure attached to the valve support structure within the interior area of the valve support structure, the valve structure comprising a plurality of leaflets, a first end of each of the plurality of leaflets attached to a respective one of the multiple commissure support structures and a second end of each leaflet attached to a respective different one of the multiple commissure support structures.

31. :

The prosthetic valve of claim 30, wherein the peaks are all oriented in the same direction.

32. :

The prosthetic valve of claim 30, further comprising an outer member attached to the first end of the valve support structure, wherein an inner surface of the outer member is spaced radially from an outer surface of the valve support structure.

33. :

The prosthetic valve of claim 32, wherein the outer member includes a first end attached to the first end of the valve support structure and a second end that is unattached to the valve support structure.

34. :

The prosthetic valve of claim 32, wherein the outer member is a sealing skirt.