Prosthetic heart valves, scaffolding structures, and systems and methods for implantation of same

• US 8,430,925 B2
• Filed: 02/25/2005
• Issued: 04/30/2013
• Est. Priority Date: 02/27/2004
• Status: Expired due to Fees

• Current Assignee: AorTx, Inc. (Johnson & Johnson)
• Original Assignee: AorTx, Inc. (Johnson & Johnson)
• Inventors: Forster, David C., Heneveld, Scott, Walsh, Brandon, Ginn, Richard
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): MILLER, CHERYL L
• Application Number:
  US11/066,126
• Publication Number:
  US 20050203617A1
• Time in Patent Office: 2,986 Days
• Field of Search: 623/1.28, 623/1.29, 623/1.17, 623 214- 219, 623/1.12, 623/1.16, 623 21- 219, 623/900, 606/193, 606/194, 606/198, 604104-109
• US Class Current: 623/1.26
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• 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 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2220/005 using adhesives
• 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 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2250/001 for adjusting a diameter
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts

Abstract

Prosthetic valves and their component parts are described, as are prosthetic valve delivery devices and methods for their use. The prosthetic valves are particularly adapted for use in percutaneous aortic valve replacement procedures. The delivery devices are particularly adapted for use in minimally invasive surgical procedures.

Claims

1. A support member for supporting a prosthetic heart valve, the support member having a longitudinal axis and being adapted to provide a scaffolding force to the interior of an anatomical vessel, the support member comprising:

three separate and independent metallic panels, each panel comprising a center portion between opposing side portions, wherein for each panel the center portion is radially inwardly disposed with respect to the opposing side portions; and

three mechanical hinges, each mechanical hinge having an axis, and each mechanical hinge attaching a pair of adjacent peripheral panels of said three metallic panels and being configured to permit the pair of adjacent panels to rotate about the axis of the mechanical hinge,

each pair of adjacent panels forming a lobe, each lobe having a vertex at one of the mechanical hinges and each lobe being curled in a same direction around the longitudinal axis of the support member,

wherein each panel is bendable to a radially outwardly disposed configuration such that the support member is expanded to an expanded state having a relatively larger cross-sectional dimension.

2. The support member of claim 1, wherein the support member is transitionable to an intermediate state before the expanded state, wherein the support member has a star-shaped profile in the intermediate state.

3. The support member of claim 1, wherein the support member is generally tubular in the expanded state.

4. The support member of claim 3, wherein the support member is generally cylindrical in the expanded state.

5. The support member of claim 3, wherein the support member has a generally oval cross-sectional shape when the support member is in the expanded state.

6. The support member of claim 1, wherein each mechanical hinge has a removable pin.

7. The support member of claim 1, further comprising an anchoring member.

8. The support member of claim 7, wherein the anchoring member has a delivery position and a deployment position, and further comprising an actuator adapted to move the anchoring member from the anchoring member'"'"'s delivery position to the anchoring member'"'"'s deployment position.

9. The support member of claim 7, wherein the anchoring member has a delivery position and a deployment position, and wherein the anchoring member is self-actuating from the anchoring member'"'"'s delivery position to the anchoring member'"'"'s deployment position.

10. The support member of claim 1, wherein the three separate and independent metallic panels are formed into a generally tubular shape when the support member is in a contracted state.

11. The support member of claim 1, wherein the panels are nitinol.

12. The support member of claim 1, wherein a single semi-circular aperture is framed in the center portion of each panel.

13. The support member of claim 12, wherein each panel further comprises sub-apertures smaller than the semi-circular aperture.

14. The support member of claim 1, wherein each mechanical hinge comprises at least one member separate from the panels.

15. The support member of claim 1, wherein a continuous metallic portion is present along at least a periphery of each panel.

16. The support member of claim 1, wherein each panel has opposing side edges, the side edges of adjacent panels being coupled together by one of the mechanical hinges extending along the length of each side edge.

17. The support member of claim 1, wherein each panel is a non-expandable solid metallic member.

18. The support member of claim 1, wherein each panel is adapted to couple with a valve leaflet.