Transvalvular intraannular band for valve repair
Aortic regurgitation can be treating by implanting in the aortic annulus a transvalvular intraannular band. The band has a first end, a first anchoring portion located proximate the first end, a second end, a second anchoring portion located proximate the second end, and a central portion. The central portion is positioned so that it extends transversely across a coaptive edge formed by the closure of the aortic valve leaflets. The band may be implanted via translumenal access or via thoracotomy.
1. An intraannular heart valve implant comprising:
a body having first and second shoulder portions and a convex shaped central portion,
wherein the first and second shoulder portions taper from a first width to a second width toward the central portion to reduce resistance to blood flow,
wherein the central portion comprises a narrowed portion narrower than part of the first and second shoulder portions to reduce resistance to blood flow,
wherein a portion of the body is dimensioned for attachment within an intraannular plane of a heart valve annulus, and
wherein part of the implant is configured to be positioned within the intraannular plane of the heart valve annulus such that the central portion extends transversely across a coaptive edge formed by two or three valve leaflets, and such that the central portion is convex in the direction of blood flow to support the two or three valve leaflets and elevate the position of the coaptive edge in the direction of blood flow during closure of the two or three valve leaflets.
2. The implant of claim 1 , wherein the first and second shoulder portions comprise a convex shape and are configured to extend away from the intraannular plane.
3. The implant of claim 1 , wherein the body further comprises first and second anchoring portions, the first anchoring portion located proximate the first shoulder portion, the second anchoring portion located proximate the second shoulder portion, and wherein the first and second anchoring portions are configured to be attached to tissue proximate the heart valve annulus within the intraannular plane.
4. The implant of claim 1 , wherein the central portion is configured to elevate the position of the coaptive edge in the range of from about 6 mm to about 12 mm.
5. The implant of claim 1 , wherein the heart valve annulus is a tricuspid valve annulus.
6. The implant of claim 1 , wherein the heart valve annulus is a pulmonary valve annulus.
7. The implant of claim 1 , wherein the heart valve annulus is a mitral valve annulus.
8. The implant of claim 1 , wherein the heart valve annulus is an aortic valve annulus.
9. An intraannular heart valve implant comprising:
a body having first and second shoulder portions and a convex shaped central portion,
wherein the first and second shoulder portions taper from a first width to a second width toward the central portion to reduce resistance to blood flow,
wherein a portion of the body is dimensioned for attachment within an intraannular plane of a heart valve annulus, and
wherein part of the implant is configured to be positioned within the intraannular plane of the heart valve annulus such that the central portion extends transversely across a coaptive edge formed by two or three valve leaflets.
10. The implant of claim 9 , wherein the central portion comprises a narrowed portion narrower than part of the first and second shoulder portions to reduce resistance to blood flow.
11. The implant of claim 9 , wherein the central portion is convex in the direction of blood flow to support the two or three valve leaflets and elevate the position of the coaptive edge in the direction of blood flow during closure of the two or three valve leaflets.
12. The implant of claim 11 , wherein the central portion is configured to elevate the position of the coaptive edge by at least about 4 mm.
13. The implant of claim 9 , wherein the first and second shoulder portions comprise a convex shape and are configured to extend away from the intraannular plane.
14. The implant of claim 9 , wherein the body further comprises first and second anchoring portions, the first anchoring portion located proximate the first shoulder portion, the second anchoring portion located proximate the second shoulder portion, and wherein the first and second anchoring portions are configured to be attached to tissue proximate the heart valve annulus within the intraannular plane.
15. The implant of claim 9 , wherein the heart valve annulus is a tricuspid valve annulus.
16. The implant of claim 9 , wherein the heart valve annulus is a pulmonary valve annulus.
17. The implant of claim 9 , wherein the heart valve annulus is a mitral valve annulus.
18. The implant of claim 9 , wherein the heart valve annulus is an aortic valve annulus.
19. An intraannular heart valve implant comprising:
a convex shaped body comprising first and second shoulder portions that decrease in width toward a central portion,
wherein a portion of the body is dimensioned for attachment within an intraannular plane of a heart valve annulus,
wherein part of the implant is configured to be positioned within the intraannular plane of the heart valve annulus such that the central portion extends transversely across a coaptive edge formed by two or three valve leaflets,
wherein the body further comprises first and second anchoring portions, the first anchoring portion located proximate the first shoulder portion, the second anchoring portion located proximate the second shoulder portion, wherein the first and second anchoring portions are configured to be attached to tissue proximate the heart valve annulus within the intraannular plane, and
wherein the central portion is configured to elevate the position of the coaptive edge by at least about 4 mm in the direction of blood flow.
20. The implant of claim 19 , wherein the convex shaped body comprises a frame, the frame comprising at least one strut extending between the first and second anchoring portions.