Sutureless anchoring device for cardiac valve prostheses

Patent metadata

Field	Value
Publication number	US-9289289-B2
Application number	US-201213985100-A
Country	US
Kind code	B2
Filing date	Feb 10, 2012
Priority date	Feb 14, 2011
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

A device for anchoring a prosthetic heart valve on biological tissue, includes first and second anchoring assemblies, mutually couplable to secure biological tissue therebetween. The anchoring assemblies include at least one pair of complementary arched portions having anchoring formations for anchoring on the biological tissue. The anchoring formations include integral extensions of the anchoring assemblies extending radially outwardly of one of the anchoring assemblies.

First claim

The invention claimed is:

1. A device for anchoring a prosthetic heart valve on biological tissue, the device comprising: first and second anchoring assemblies that are mutually couplable to secure biological tissue therebetween, wherein the anchoring assemblies include at least one pair of complementary arched portions having anchoring formations for anchoring on the biological tissue, such that the anchoring formations include extensions which are rigidly connected to the anchoring assemblies and extend radially outwardly from one of the anchoring assemblies in an aligned arrangement with respect to corresponding extensions extending radially outwardly from the other of the anchoring assemblies, whereby, with the anchoring assemblies mutually coupled to secure the biological tissue therebetween, the extensions in the pair of complementary arched portions form couples of co-operating extensions, wherein, in at least one of the anchoring assemblies, the extensions have different lengths over different portions of the respective anchoring assemblies.

2. The device of claim 1 , wherein the extensions are elastically deformable.

3. The device of claim 1 , wherein, in at least one of the arched portions, the extensions are bent toward the complementary arched portion.

4. The device of claim 1 , wherein, in at least one of the arched portions, the extensions are elastically biased towards the complementary arched portion.

5. The device of claim 1 , wherein the extensions taper, preferably sawtooth-like, radially outwardly of the arched portions.

6. The device of claim 1 , wherein at least part of the extensions have an apertured structure.

7. The device of claim 1 , wherein at least one of the anchoring assemblies includes an annular base body having the anchoring formations as integral extensions thereof.

8. The device of claim 7 , wherein the complementary arched portions extend over the whole of the anchoring assemblies, whereby the anchoring formations form a crown of integral extensions surrounding the annular base body.

9. The device of claim 7 , wherein the complementary arched portions extend over respective portions of the anchoring assemblies, whereby the anchoring formations include at least one angular sector of integral extensions of the annular base body.

10. A device for anchoring a prosthetic heart valve on biological tissue, the device comprising: First and second anchoring assemblies that are mutually couplable to secure biological tissue therebetween, wherein the anchoring assemblies include: at least one first pair of complementary arched portions having extensions in an aligned arrangement to form couples of co-operating extensions securing therebetween the biological tissue in a linear trajectory; and at least one second pair of complementary arched portions having integral extensions extending radially outwardly of one of the anchoring assemblies in an alternate arrangement with respect to homologous extensions extending radially outwardly of the other of the anchoring assemblies, whereby, with the anchoring assemblies mutually coupled to secure the biological tissue the extensions in the second pair of complementary arched portions interdigitate and impart to the biological tissue secure therebetween a serpentine-like trajectory.

11. The device of claim 10 , wherein the anchoring assemblies have a substantially D-shaped plan outline.

12. The device of claim 10 , wherein the anchoring assemblies have a substantially D-shaped plan outline, at least one of the first pair of complementary arched portions is arranged at the curved portion of the D-shaped outline, and at least one the second pair of complementary arched portions is arranged at the linear portion of the D-shaped outline.

13. The device of claim 11 , wherein at least one the first pair of complementary arched portions is arranged at the curved portions of the D-shaped outline, and at least one of the second pair of complementary arched portions is arranged at the linear portion of the D-shaped outline.

14. The device of claim 3 , further comprising a sealing member forming an impermeable surface coupled to at least one of the anchoring assemblies.

15. The device of claim 13 , wherein the sealing member is a sheath, preferably a textile sheath, coupled to at least one of the anchoring assemblies.

16. The device of claim 13 , wherein the sealing member extends to cover the extensions.

Assignees

• Rolando Giovanni
• Ercolani Mauro
• Gaschino Paolo
• Marchisio Andrea
• Sorin Group Italia Srl

Inventors

• Rolando Giovanni
• Ercolani Mauro
• Gaschino Paolo
• Marchisio Andrea

Classifications

• A61F2250/006

  modular · CPC title

• A61F2/2403

  with pivoting rigid closure members (check valves with hinged closure members in general F16K15/03) · CPC title

• A61F2/2409 Primary

  Support rings therefor, e.g. for connecting valves to tissue (annuloplasty rings A61F2/2442) · CPC title