Anchoring structure with concave landing zone

• US 9,579,194 B2
• Filed: 10/21/2009
• Issued: 02/28/2017
• Est. Priority Date: 10/06/2003
• Status: Active Grant

• Current Assignee: Medtronic ATS Medical, Inc. (Medtronic Plc)
• Original Assignee: Medtronic ATS Medical, Inc. (Medtronic Plc)
• Inventors: Elizondo, David, Malewicz, Andrzej M., Weston, Matthew W., Myers, Keith E.
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): MILLER, CHERYL L
• Application Number:
  US12/603,315
• Publication Number:
  US 20100100176A1
• Time in Patent Office: 2,687 Days
• Field of Search: 623/1.24, 623/1.26, 623 212- 219
• US Class Current: 1/1
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/00 Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0065 toroidal, e.g. ring-shaped, doughnut-shaped

Abstract

A method and device for reducing paravalvular leakage upon implantation of a replacement heart valve is provided. The valve assembly includes a tissue or bioprosthetic heart valve attached to an anchoring structure. The anchoring structure includes an inlet rim that is substantially C-shaped in cross section to form a concave landing zone. The anchoring structure self-seats when implanted in the sinus of a patient with the proximal and distal ends of the C-shaped inlet rim pushed against the aorta to effectively prevent paravalvular leakage.

Claims

1. A valve replacement system comprising:

a substantially tubular anchoring structure having an inflow end and an outflow end, the anchoring structure comprising;

an inflow rim at the inflow end comprising a substantially C-shaped in cross section concave landing zone, the inflow rim comprising a generally sinusoidal proximal inflow ring having a plurality of peaks extending towards the outflow end and a plurality of troughs extending towards the inflow end, a generally sinusoidal distal inflow ring having a plurality of peaks extending towards the outflow end and a plurality of troughs extending towards the inflow end, and a generally sinusoidal central inflow ring disposed between the proximal inflow ring and the distal inflow ring and having a having a plurality of peaks extending towards the outflow end and a plurality of troughs extending towards the inflow end, wherein the troughs of the distal inflow ring are operably connected to the peaks of the central inflow ring, and the troughs of the central inflow ring are operably connected to the peaks of the proximal inflow ring, the inflow rim being configured to expand and contact an annulus of a native valve upon deployment such that the proximal inflow ring abuts a proximal side of the annulus and the distal inflow ring abuts a distal side of the annulus;

an outflow rim at the outflow end; and

a plurality of longitudinal support posts connecting the inflow rim to the outflow rim, wherein each support post of the plurality of support posts comprises a substantially paddle-shaped blade having an axial slot therethrough and an elongated vertical member extending from the blade and having a width narrower than a width of the blade, wherein the elongated vertical member is connected to the inflow rim at a location of one of the troughs of the distal inflow ring; and

a bioprosthetic heart valve comprising a commissural tab operably coupled to one blade of one support post of the plurality of longitudinal support posts.

2. The valve replacement system of claim 1, wherein the anchoring structure further comprises a plurality of finger elements extending axially from the inflow rim.

3. The valve replacement system of claim 1, wherein the blade is connected to the outflow rim.

4. The valve replacement system of claim 1, wherein the plurality of longitudinal support posts comprises two support posts.

5. The valve replacement system of claim 1, wherein the plurality of longitudinal support posts comprises three support posts.

6. A valve replacement system comprising:

a substantially tubular anchoring structure having an inflow end and an outflow end, the anchoring structure comprising;

an inflow rim at the inflow end comprising a substantially C-shaped in cross section concave landing zone, the inflow rim comprising a generally sinusoidal proximal inflow ring having a plurality of peaks extending towards the outflow end and a plurality of troughs extending towards the inflow end and a generally sinusoidal distal inflow ring having a plurality of peaks extending towards the outflow end and a plurality of troughs extending towards the inflow end, wherein at least one of the plurality of peaks of the proximal inflow ring is operably connected with a trough of the plurality of troughs of the distal inflow ring, the inflow rim being configured to expand and contact an annulus of a native valve upon deployment such that the proximal inflow ring abuts a proximal side of the annulus and the distal inflow ring abuts a distal side of the annulus;

an outflow rim at the outflow end;

a plurality of longitudinal support posts connecting the inflow rim to the outflow rim, wherein each longitudinal support post of the plurality of longitudinal support posts comprises a substantially paddle-shaped blade having an axial slot therethrough and an elongated vertical member extending from the blade and having a width narrower than a width of the blade, wherein the elongated vertical member is connected to the inflow rim at a location of one of the troughs of the distal inflow ring; and

a plurality of finger elements extending axially from a peak of the proximal inflow ring towards the inflow end and extending axially from a trough of the distal inflow ring towards the outflow end; and

a bioprosthetic heart valve comprising a commissural tab operably coupled to one blade of one support post of the plurality of longitudinal support posts.

7. The valve replacement system of claim 6, wherein the outflow rim comprises a rail.

8. The valve replacement system of claim 6, wherein the blade is connected to the outflow rim.

9. The valve replacement system of claim 6, wherein the plurality of longitudinal support posts comprises two support posts.

10. The valve replacement system of claim 6, wherein the plurality of longitudinal support posts comprises three support posts.