Is a
Patent attributes
Patent Applicant
Patent Jurisdiction
Patent Number
Date of Patent
May 30, 2017
Patent Application Number
14404989
Date Filed
June 25, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
Methods and apparatus for accelerated wear testing of prosthetic heart valves apply non-sinusoidal pressure waveforms. The waveforms may maintain a threshold reverse pressure for a desired duration while limiting a peak reverse pressure. Apparatus may include a fluid impeller such as a bellows or a piston driven by an actuator having a position controlled by a motion control system. The apparatus may include a pressure control system comprising one or more bypass channels and bypass valves controlling a resistance of the bypass channels to fluid flow. The bypass valves may be controlled in real time.
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