Multiple Orifice Implantable Heart Valve and Methods of Implantation

• US 20090259292A1
• Filed: 02/02/2009
• Published: 10/15/2009
• Est. Priority Date: 04/08/2008
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Bonhoeffer, Philip
• Granted Patent: US 8,430,927 B2
• Time in Patent Office: Days
• US Class Current: 623/1.150
• 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• 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 2230/0006 circular
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/001 Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61F 2230/0032 B-shaped
• CPC Class Codes: A61F 2230/0034 D-shaped

Abstract

A surgically implantable multiple orifice heart valve having a valve frame with at least two orifices, each of which can accommodate a tissue valve.

Claims

1. A stent assembly for implantation in a body lumen, the stent assembly comprising:

a stent frame comprising a first opening, a second opening spaced from the first opening, and a first intermediate strut portion positioned between the first and second openings.

2. The stent assembly of claim 1, wherein the intermediate strut portion is impermeable to blood flow.

3. The stent assembly of claim 1, wherein each of the first and second openings comprises a tissue valve.

4. The stent assembly of claim 1, wherein each of the first and second openings are circular.

5. The stent assembly of claim 1, wherein the frame further comprises at least two commissure posts extending from a first side of the frame and adjacent to the first opening, and at least two commissure posts extending from the first side of the frame and adjacent to the second opening.

6. The stent assembly of claim 1, wherein the size of the first opening is different from the size of the second opening.

7. The stent assembly of claim 1, wherein the stent frame is relatively rigid for surgical implantation into a patient.

8. The stent assembly of claim 7, wherein the stent frame has an outer shape that is compatible with the shape of a mitral valve in which it will be implanted.

9. The stent assembly of claim 1, further comprising a third opening adjacent to and spaced from the second opening, and a second intermediate strut portion positioned between the second and third openings.

10. A stent assembly comprising a first stent barrel, a second stent barrel adjacent to the first stent barrel, and a stent frame surrounding an outermost periphery of the first and second stent barrels.

11. The stent assembly of claim 10, wherein the stent frame is rigid such that the first and second stent barrels are not moveable relative to each other within the stent frame.

12. The stent assembly of claim 10, wherein the stent frame is flexible such that the first and second stent barrels are moveable relative to each other within the stent frame.

13. The stent assembly of claim 10, wherein at least one of the first and second stent barrels is cylindrical.

14. The stent assembly of claim 10, wherein the first and second stent barrels have generally the same cross-sectional shape and size.

15. The stent assembly of claim 10, wherein the first stent barrel has a different cross-sectional shape than the second stent barrel.

16. A stent assembly for implantation in a body lumen, the stent assembly comprising:

a stent frame comprising first and second commissure posts extending from a first side of the frame and positioned on generally opposite edges of the frame, a first valve attached to the first and second commissure posts, third and fourth commissure posts extending from the first side of the frame and positioned on generally opposite edges of the frame, and a second valve attached to the third and fourth commissure posts.

17. The stent assembly of claim 16, further comprising a fifth commissure post positioned between the first and second valves, wherein each of the first and second valves is further attached to the fifth commissure post.

18. A method of replacing a surgically implanted multiple orifice valve assembly in a patient, comprising the step of percutaneously delivering a replacement valve to at least one orifice of the valve assembly, wherein each replacement valve comprises at least one anchoring structure that is engageable with at least one docking feature of the multiple orifice valve assembly.

19. The method of claim 18, wherein a replacement valve is delivered to each of the orifices of the multiple valve assembly.

20. The method of claim 18, wherein each replacement valve is a compressible and expandable stented heart valve.