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CAVS March Meeting


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CAVS March Meeting

  1. 1. Bioinspired Design Meeting March 2010 – Research Update <br />SouravPatnaik<br />Biomedical Engineering<br />ABE and CAVS<br />Mississippi State University<br />
  2. 2. Background<br />Aortic Valve<br />Porcine heart <br />Aortic Wall <br />Intact Aortic Valve Conduit<br />
  3. 3. Tensile testing<br />Aortic Wall – Natural State<br />Pre load 1 g<br />Thickness ~ 2.5 mm<br />Length – 4 mm<br />Width – 1 mm<br />Aortic Wall – relaxed state<br />
  4. 4. Failure<br />
  5. 5.
  6. 6. Plan of action : <br />Mimics – create model, mesh (and run FEA (ABAQUS))<br />CT scan – obtain anatomical geometry<br />Fix Tissue with 0.625% Gluteraldehyde<br />Porcine heart <br />Intact Aortic Valve Conduit<br />
  7. 7. Plan of Action<br />Fixing of aortic valve and aortic wall <br />Uniaxial and biaxial testing – obtain experimental data – use in computational model- validate.<br />Mesh generation in Mimics from CT Scans of fixed tissues. <br />Complete ABAQUS tutorials – start opening and closing of valves<br />MSU Human Body model project – <br />start with individual organs <br />Procurement of cadaver CT Scan database from University of Colorado (work with Prabhuraj).<br />If not then we can scan our own & build database <br />Example on next slide<br />
  8. 8. Finite Element Model Database of Human body <br /><br /> <br />
  9. 9. Finite Element Model Database of Human body <br /><br /> <br />
  10. 10. Finite Element Model Database of Human body <br /><br /> <br />
  11. 11. Finite Element Model Database of Human body <br /><br /> <br />