Fatigue testing system for prosthetic devices

  • US 8,627,708 B2
  • Filed: 03/05/2010
  • Issued: 01/14/2014
  • Est. Priority Date: 03/06/2009
  • Status: Active Grant
First Claim
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1. A device for simultaneous accelerated cyclic testing of a plurality of valved prosthetic devices comprisinga pressurizable test chamber further comprisinga fluid distribution chamber having a first manifold defining a first plurality of ports configured to receive and fluidicly couple with a first end of each of a respective plurality of sample holders and defining an aperture in a lower face in fluid communication with a pressure source;

  • a fluid return chamber having a second manifold disposed opposite and spaced apart from the first manifold of the fluid distribution chamber and defining a second plurality of ports configured to receive and fluidicly couple with a second end of each of the respective plurality of sample holders;

    a fluid return conduit both structurally and fluidily connecting the fluid distribution chamber to the fluid return chamber; and

    a compliance chamber providing a volume for holding a gas or elastomeric material that compresses under a pressure placed upon fluid in the test chamber and;

    allows fluid in the test chamber to occupy a portion of the volume;

    a drive motor configured to operate cyclically, acyclically, or a combination of both; and

    a fluid displacement member connected with and driven by the drive motor to provide the pressure source that increases and decreases a pressure on fluid in the test chamber;

    whereby cyclic and acyclic fluid pressures are maintained throughout the test chamber.

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