Heart valve system

• US 7,468,073 B2
• Filed: 04/11/2006
• Issued: 12/23/2008
• Est. Priority Date: 01/02/2002
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Ryan, Timothy R., Morrow, Joseph C., Lemmon, Jack D., Johnson, Keith M.
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/401,800
• Publication Number:
  US 20060195181A1
• Time in Patent Office: 987 Days
• Field of Search: 623 21- 239
• US Class Current: 623/2.11
• 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments

Abstract

A valve system including an aortic valve and a holder. The holder includes a holder body, which has a central portion, engagable with a holder handle, and downwardly extending leg portions that engage the valve in the areas between the commissure posts. The central portion of the holder further includes a spool located between the commissure posts, rotatable by an attached handle. Rotation of the spool draws in a tensile member passing through the commissure posts, drawing the commissure posts inward toward the spool. The tensile member passes through guides formed in the holder, configured such that they define the maximum available inward deflection of the commissure posts at the point at which the portions of the tensile member between the commissure posts assume straight configurations.

Claims

1. A bioprosthetic heart valve system, comprising:

a heart valve comprising a valve body having a plurality of commissure posts extending to a first end of the valve body, each commissure post ending in a tip portion, a stent including a peripheral edge at a second end of the valve body, and a sewing ring that is spaced from the tip portions of the commissure posts and extending along the peripheral edge defining a ring structure at the second end of the valve body; and

a holder having a holder body comprising a central portion engagable with a holder handle and having a plurality of legs extending downwardly from the central portion, releasably coupled to the valve body intermediate the commissure posts.

2. A system according to claim 1 wherein the central portion of the holder body is located between upper ends of the commissure posts.

3. A system according to claim 1 wherein the legs are coupled to the valve body by means of sutures.

4. A system according to claim 1, further comprising a holder handle, engaged with the central portion of the holder body.

5. A system according to claim 1, wherein at least one of the legs is provided with a hinge.

6. A system according to claim 1, wherein an opening at the second end of the valve body comprises an inflow end of the heart valve, which opening substantially maintains its size and shape during use as a heart valve after securing the sewing ring to an annulus of a heart.

7. A bioprosthetic heart valve system, comprising:

a heart valve comprising a valve body having a plurality of commissure posts extending to a first end of the valve body, each commissure post ending in a tip portion, a stent including a peripheral edge at a second end of the valve body, and a sewing ring that is spaced from the tip portions of the commissure posts and extending along the peripheral edge defining a ring structure at the second end of the valve body; and

a holder having a holder body comprising a central portion coupled to a holder handle and having a plurality of legs extending downwardly from the central portion, releasably coupled to the valve body intermediate the commissure posts.

8. A system according to claim 7 wherein the central portion of the holder body is located between upper ends of the commissure posts.

9. A system according to claim 7, wherein an opening at the second end of the valve body comprises an inflow end of the heart valve, which opening substantially maintains its size and shape during use as a heart valve after securing the sewing ring to an annulus of a heart.

10. A bioprosthetic heart valve system, comprising:

a heart valve comprising a valve body having a plurality of commissure posts extending to a first end of the valve body, each commissure post ending in a tip portion, a stent including a peripheral edge at a second end of the valve body, and a sewing ring extending along the peripheral edge defining a ring structure at the second end of the valve body, wherein the tip portions of the commissure posts are free of any portion of the sewing ring;

a holder having a holder body comprising a central portion engagable with a holder handle and having a plurality of legs extending downwardly from the central portion, releasably coupled to the valve body intermediate the commissure posts.

11. A system according to claim 10, wherein an opening at the second end of the valve body comprises an inflow end of the heart valve, which opening substantially maintains its size and shape during use as a heart valve after securing the sewing ring to an annulus of a heart.

12. A bioprosthetic heart valve system, comprising:

a heart valve comprising a valve body having a plurality of commissure posts extending to a first end of the valve body, each commissure post ending in a tip portion, a stent including a peripheral edge at a second end of the valve body, and a sewing ring wherein the tip portions of the commissure posts are free of any portion of the sewing ring and extending along the peripheral edge defining a ring structure at the second end of the valve body;

a holder having a holder body comprising a central portion coupled to a holder handle and having a plurality of legs extending downwardly from the central portion, releasably coupled to the valve body intermediate the commissure posts; and

wherein the holder is spaced from the tip portions of the commissure posts.

13. A system according to claim 12, wherein an opening at the second end of the valve body comprises an inflow end of the heart valve, which opening substantially maintains its size and shape during use as a heart valve after securing the sewing ring to an annulus of a heart.