Heart chamber simulator with electronic accelerated heart valve

Details Heart chamber simulator with electronic accelerated heart valve Heart chamber simulator with electronic accelerated heart valve

1990-11-02

1993-01-05

Cohen, Lee S.

Surgery

Miscellaneous

623 2, 73 37, A61F 224

Patent

active

051761530

ABSTRACT:
An accelerated wear and fatigue tester for replacement human heart valves includes a fluid which is caused to pulse the heart valve by a pressure generator utilizing a coil secured to a flexible diaphragm in contact with the fluid. The coil is subjected to a magnetic field and a signal selected from pulsed, sinusoidal, or random pulses and/or a DC offset, or a recorded signal from a human heart, such that the magnetic interaction selectively pulses the diaphragm and replacement heart valve to simulate heart action. A plurality of pressure generators with differing signals, including phase differences, may be provided to simulate arrhythmia in a heartbeat, and a library of recordings may be used as a database to predict irregularities in replacement heart valves.

REFERENCES:
patent: 4381663 (1983-05-01), Swanson
patent: 4450710 (1984-05-01), Nettekoven
patent: 4546642 (1985-10-01), Swanson

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