Transmyocardial implant with flow reduction

摘要

A transmyocardial implant establishes a blood flow path through a heart wall between a heart chamber and a lumen of a coronary vessel on the heart wall. The implant includes a hollow conduit having an open first end and an open second end. The conduit is dimensioned so as to extend at least from the vessel through said heart wall and into said chamber. The conduit has a conduit wall defining a blood flow pathway within an interior of said conduit between the first and second ends. The first and second ends are mutually positioned for the first end to reside within the vessel and opposing a wall of the vessel when the conduit is placed within the heart wall with the second end protruding into the chamber. The conduit wall is formed of a material sufficiently rigid to resist deformation and closure of the pathway in response to contraction of the heart wall. A flow restriction is formed in the pathway for reducing a discharge velocity of blood flow discharged from the first end.