Methods of making vavlular devices

A method of making a transluminal cardiac valve, comprising the steps of:

• forming a hypotube by physical vapor deposition of a biocompatible metal, metal alloy or pseudometal onto a substrate;
• forming a pattern of a lattice tubular structure in the hypotube, the lattice tubular structure having a valvular end and an anchoring end thereof, the valvular end having a plurality of biased cells at the valvular end and biasing projections extending from the biased cells, wherein the tubular latticed structure further comprises a plurality of slots that open upon diametric expansion of the tubular latticed structure and define a plurality of helically oriented struts in the tubular lattice structure;
• removing the pattern of the lattice tubular structure from the hypotube and substrate;
• providing a polymer covering spanning at least some of the biasing projections and spanning spaces between the biasing projections thereby forming a plurality of valve leaflets, each of the plurality of valve leaflets being configured to move both toward and away from a central longitudinal axis of the tubular latticed structure.