This invention relates to the design and function of a compressible valve replacement
prosthesis, collared or uncollared, which can be deployed into a beating heart without …

This invention relates to the design and function of a device which allows for retrieval of a
previously implanted valve prosthesis from a beating heart without extracorporeal circulation …

A prosthetic heart valve is circumferentially collapsible for less invasive delivery into a
patient. The valve re-expands to operating size at the implant site in the patient. A frame …

(57) ABSTRACT A two-stage or component-based valve prosthesis that can be quickly and
easily implanted during a Surgical procedure is provided. The prosthetic valve comprises a …

A stented valve including a stent structure including a generally tubular body portion that has
a first end and a second end, wherein an area adjacent the first end has a first stiffness, an …

A heart valve prosthesis that can be quickly and easily implanted during a surgical
procedure is provided. The prosthetic valve comprises a support structure that is deployed at …

Prosthetic heart valves, which are collapsible to a relatively small circumferential size for
less invasive delivery into a patient and which then re-expand to operating size at an implant …

4,106,129 4,222,126 4,232,690 4,265,694 4,291,420 4,297,749 4,339,831 4,343,048
4,345.340 4.425, 908 4,470,157 4,491,986 4,501,030 4,574,803 4,580,568 4,592,340 …

3.657, 744 3,671,979 3,714,671 3,755,823 3,976,079 4,003.382 4,035,849 4,056,854
4,073,438 4,106,129 4,222,126 4,265,694 4,297,749 4,339,831 4,343,048 4,345.340 …

(57) ABSTRACT A prosthetic heart valve is provided with a cuff having fea tures which
promote sealing with the native tissues even where the native tissues are irregular. The cuff …