Method of making a blood pumping membrance for artificial ventri

Details Method of making a blood pumping membrance for artificial ventri Method of making a blood pumping membrance for artificial ventri

1992-05-05

1994-06-28

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Anti-stick or adhesion preventing coating

264301, 264305, 156293, 623 3, 427230, B29C 4114

Patent

active

053244648

ABSTRACT:
A method for fabricating a flexible, blood pumping membrane for use within an artificial ventricle, involves the steps of selecting a mold configured to provide a dome shaped diaphragm biased in a static mode to a systolic configuration and suitable for use within a ventricular housing as a part of a blood pumping membrane. The specific steps include forming the dome shaped diaphragm on a surface of the mold to include (i) a perimeter comprising at least a portion of a diaphragm/housing interface which is configured to connect the dome shaped diaphragm with the ventricular housing to enclose a blood pumping chamber, and (ii) an intermediate annular section of the dome shaped diaphragm extending inward from the diaphragm/housing interface in a configuration corresponding to that portion of the diaphragm when the ventricle is substantially at full systole.

REFERENCES:
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patent: 4981484 (1991-01-01), Holfert
patent: 5089020 (1992-02-01), Koppert
patent: 5392879 (1992-03-01), Jarvik

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