Mold to form stent-less replacement heart valves from biological membranes
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United States of America Patent
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Dec 10, 2002
Grant Date -
N/A
app pub date -
Oct 14, 1999
filing date -
Oct 14, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pair of templates form a mold for substantially flat biological membranes to shape the membrane into a configuration that, after trimming of excess tissue, is adapted for forming a replacement aortic, pulmonary, tricuspid or mitral heart valve. Each template has three members joined to another laterally, with each member configured to form, together with its mating member, the mold for one leaflet or cusp of the replacement heart valve. The negative template has concave surfaces for each member and the positive template has convex surfaces which mate with the concave surfaces of the first template. Each of the templates is made of thin, shell like material and has beveled edges. The biological membrane is placed between the mating convex and concave surfaces of the two templates assembled to one another to form the membrane into the configuration of the three leaflets of the replacement heart valve.
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