April 29, 2015
This week, the group continued it's design process in and outside of the design laboratory. As of now, the group plans on having 2 final prototypes of the heart valve: one hands-on prototype and one final 3D printed module. In addition, the group e-mailed Drexel's Machine to confirm their assistance on the hands-on prototype. Lastly, the group utilized MatLab to create a function that shows the resistance of the blood flow going through the valve as the radius of the valve decreases due to blood clotting. It is closely related to Ohm's Law as an electric current flows through a wire. Below are screenshots of the function and a graphical representation of the function.
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Figure 1. MatLab Resistance Equation with Variables
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Figure 2. Outputs of the Equation from Figure 1
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Figure 3. Graph of Radius vs. Resistance (m2/s)
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In addition, there were a few additions added to the heart valve designs: a new layer over the 4 heart-valve-flap-holders on the base-ring and 2mm holes to the heart valve flap. These are pictured below from two different corresponding angles.
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Bottom View of New Base Ring
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Top View of New Base Ring
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Bottom View of Flap with 2mm Hole
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Side View of Flap with 2mm Hole
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Sources:
[1] MATLAB and Statistics Toolbox Release 2012b, The MathWorks, Inc., Natick, Massachusetts, United States.
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