Stented prosthetic heart valve and methods for making

摘要

A stented prosthetic heart valve including a stent, a plurality of leaflets, and a coupling apparatus. The stent includes a plurality of struts combining to define a generally tubular body, with the struts forming strut segments. The leaflets are mounted to the stent, and include a leaflet provided as part of a first leaflet layer that further forms a tab region. The coupling apparatus is configured for connecting the first leaflet layer to the stent, and includes a backing layer, a guide plate, and a pin. The guide plate and the pin are formed apart from the stent. In this regard, a portion of the backing layer and the tab region are secured between the guide plate and the pin. Further, another portion of the backing layer is attached to at least one of the strut segments to mount the leaflet of the first leaflet layer to the stent.

主权项

1. A stented prosthetic valve comprising:
a stent including a plurality of struts combining to define a tubular body, the plurality of struts forming first and second strut segments; a plurality of leaflets mounted to the stent, a first one of the leaflets being provided as part of a first leaflet layer having a first tab region; and a first coupling apparatus for connecting the first leaflet layer to the stent, the first coupling apparatus including: a first backing layer, a guide plate apart from the stent, a pin apart from the stent, wherein a portion of the backing layer and the first tab region are captured between the guide plate and the pin; wherein the backing layer is attached to at least one of the first and second strut segments to mount the first leaflet to the stent; wherein the backing layer includes a base and a first flap projecting from the base, and further wherein the base abuts the first tab region at an interface established between the guide plate and the pin, and even further wherein the first flap projects from the interface and is wrapped about the first strut segment; wherein the backing layer further includes a second flap projecting from the base, and further wherein the second flap is wrapped about the second strut segment.