Value prosthesis for implantation in body channels

Details Value prosthesis for implantation in body channels Value prosthesis for implantation in body channels

2005-06-21

2005-06-21

Pellegrino, Brian E (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Heart valve

Combined with surgical tool

C623S904000

Reexamination Certificate

active

06908481

ABSTRACT:
A valve prosthesis which is especially useful in the case of aortic stenosis and capable of resisting the powerful recoil force and to stand the forceful balloon inflation performed to deploy the valve and to embed it in the aortic annulus, comprises a collapsible valvular structure and an expandable frame on which said valvular structure is mounted. The valvular structure is composed of physiologically compatible valvular tissue that is sufficiently supple and resistant to allow the valvular structure to be deformed from a closed state to an opened state. The valvular tissue forms a continuous surface and is provided with strut members that create stiffened zones which induce the valvular structure to follow a patterned movement in its expansion to its opened state and in its turning back to its closed state.

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