Collapsible valve having paravalvular leak protection

• US 10,321,991 B2
• Filed: 06/13/2014
• Issued: 06/18/2019
• Est. Priority Date: 06/19/2013
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Inventors: Glimsdale, Mathias Charles
• Primary Examiner(s): Prone, Christopher D.
• Assistant Examiner(s): Shipmon, Tiffany P
• Application Number:
  US14/899,371
• Publication Number:
  US 20160143732A1
• Time in Patent Office: 1,831 Days
• Field of Search: None
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• 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 2230/0065 toroidal, e.g. ring-shaped, doughnut-shaped
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes
• CPC Class Codes: A61F 2250/0069 Sealing means
• CPC Class Codes: A61F 2250/0096 Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers

Abstract

A heart valve assembly (100) includes a heart valve (116), a self-expandable and collapsible stent (112), and a sealing member (114). The stent (112) includes an inflow end (120) and an outflow end (122), and surrounds and supports the heart valve (116). The sealing member (114) is connected to the inflow end (120) of the stent (112) and extends around a periphery of the stent (112). The sealing member (114) is connected to the inflow end (120) of the stent (112), overlaps a portion of the heart valve (116), and extends around an outer periphery of the stent (112).

Claims

1. A heart valve assembly system, comprising:

a heart valve assembly comprising;

a heart valve;

a self-expandable and collapsible stent surrounding and supporting the heart valve, the stent comprising a plurality of strut members and defining an inflow end and an outflow end, the plurality of strut members including free ends at the inflow end of the stent; and

a sealing member connected to the inflow end of the stent and overlapping a portion of the heart valve when the heart valve assembly is in an unconstrained condition, the sealing member extending around an outer periphery of the stent when the heart valve assembly is in the unconstrained condition, the sealing member formed of a braided wire mesh having a plurality of wires,

wherein individual ones of the plurality of wires each include a free end, and the plurality of free ends are connected together at connection points in a plurality of bunches, the connection points spaced apart from one another and directly connected to the free ends of the strut members; and

a delivery device comprising;

a carrier tube adapted to receive the heart valve assembly therein in a constrained condition.

2. The heart valve assembly system of claim 1, wherein the sealing member assumes an elongated hollow tubular shape when the heart valve assembly is in the unconstrained condition.

3. The heart valve assembly system of claim 1, wherein the sealing member is connected to the stent with a plurality of fasteners at spaced apart locations around a circumference of the sealing member.

4. The heart valve assembly system of claim 1, wherein the sealing member is connected to the stent with a plurality of fasteners.

5. The heart valve assembly system of claim 1, wherein the stent and sealing member are movable from collapsed positions to expanded positions, and movable from expanded positions to collapsed positions.

6. The heart valve assembly system of claim 1, further comprising:

a plurality of marker bands positioned at the connection points between the stent and the sealing member.

7. The heart valve assembly system of claim 1, wherein the sealing member rolls up into a pre-formed toroid shape when the heart valve assembly is in the unconstrained condition.

8. The heart valve assembly system of claim 1, wherein the plurality of bunches has a total number equal to a total number of the plurality of free ends of the strut members at the inflow end of the stent.

9. The heart valve assembly system of claim 1, wherein each bunch of the plurality of bunches includes an equal number of free ends of the plurality of wires.

10. The heart valve assembly system of claim 9, wherein the number of free ends in each bunch is equal to a total number the plurality of wires forming the sealing member divided by a total number of the connection points.

11. The heart valve assembly system of claim 1, wherein the delivery device further comprises when the heart valve assembly is received within the carrier tube.

12. The heart valve assembly system of claim 11, wherein each attachment point is connected to a pair of struts when the heart valve assembly is received within the carrier tube.

13. The heart valve assembly system of claim 11, wherein each attachment point is connected to an individual strut when the heart valve assembly is received within the carrier tube.

14. The heart valve assembly system of claim 11, wherein the attachment points of the deployment member are carried by elongate arms.