Devices useful for implantation at a heart valve
First Claim
1. A prosthesis for implantation at a native semilunar valve site of a subject, the valve site having three semilunar sinuses and three native commissures, the prosthesis comprising:
- a valve prosthesis support structure comprising;
a carrier structure configured to carry prosthetic valve leaflets, andexactly three engagement arms that meet one another at three respective junctures, wherein the engagement arms are shaped so as to define three peak complexes at the three respective junctures, and three trough complexes, each of which is between two of the peak complexes,wherein in an implanted position of the prosthesis;
each of the engagement arms is configured to be at least partially disposed within a respective one of the semilunar sinuses, such that each of the peak complexes is disposed distal to a respective one of the native commissures, and each of the trough complexes is disposed at least partially within the respective one of the semilunar sinuses, andthe prosthesis is configured such that the native valve leaflets are configured to be positioned between the carrier structure and the engagement arms.
8 Assignments
0 Petitions
Accused Products
Abstract
A device useful for implantation at a native heart valve can include an anchor element having a tubular configuration defining a longitudinal direction and a circumference, a heart valve prosthesis disposed within the anchor element, and a plurality of elongate members positioned at equidistant angular intervals about the circumference of the anchor element. The device can be configured to be transitioned from a radially collapsed delivery configuration to a radially expanded implantation configuration, and the plurality of elongate members can have a length extending in the longitudinal direction of the tubular member in the expanded implantation configuration.
402 Citations
22 Claims
-
1. A prosthesis for implantation at a native semilunar valve site of a subject, the valve site having three semilunar sinuses and three native commissures, the prosthesis comprising:
-
a valve prosthesis support structure comprising; a carrier structure configured to carry prosthetic valve leaflets, and exactly three engagement arms that meet one another at three respective junctures, wherein the engagement arms are shaped so as to define three peak complexes at the three respective junctures, and three trough complexes, each of which is between two of the peak complexes, wherein in an implanted position of the prosthesis; each of the engagement arms is configured to be at least partially disposed within a respective one of the semilunar sinuses, such that each of the peak complexes is disposed distal to a respective one of the native commissures, and each of the trough complexes is disposed at least partially within the respective one of the semilunar sinuses, and the prosthesis is configured such that the native valve leaflets are configured to be positioned between the carrier structure and the engagement arms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A prosthesis for implantation at a native valve site, the prosthesis comprising:
-
a fixation member configured to be positioned at least partially downstream of the native valve, the fixation member comprising; a plurality of leaflet engagement arms configured to contact respective downstream sides of leaflets of the native valve in an implantation position of the prosthesis, the plurality of leaflet engagement arms being configured to apply a first force to tissue of the native valve in the implantation position, a carrier element configured to contact an upstream side of leaflets of the native valve in the implantation position of the prosthesis, the carrier element being configured to apply a second force to tissue of the native valve in the implantation position of the prosthesis, wherein the prosthesis is configured to be anchored in the implantation position at the native valve site via application of the first and second forces, and wherein the leaflet engagement arms and the carrier element are configured to capture leaflets of the native valve therebetween in the implantation position of the prosthesis; and prosthetic valve leaflets supported within and coupled to the carrier element. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A prosthesis for implantation at a native semilunar valve site of a subject, the prosthesis comprising:
a valve prosthesis support structure comprising; a tubular carrier element configured to support a valve prosthesis; and exactly three engagement arms that meet one another at three respective junctures, the three engagement arms being shaped so as to define three peak complexes at the three respective junctures, and to define three trough complexes, each trough complex being located between two of the peak complexes; wherein the engagement arms are positioned at respective angular locations around the tubular carrier element, at least a portion of each engagement arm being positioned radially outwardly of the tubular carrier element.
Specification