Heart Valve Model

For this project, we were tasked with designing and building a functional heart valve model.  Initially, we started by researching how the heart valve functions, what is the valve made up of, and how the properties of what its made of is necessary to the functionality. We then began to sketch models of both the valve and the whole heart to better understand how everything works together as a system. After getting the necessary knowledge, we gathered materials such as a rubber glove and cardboard that are both similar to the materials of the valve. To make sure the valve was as accurate as possible, we tested the "Young's Modulus" of each material which gave us a measure of elasticity that allowed us to choose similar materials. 

"You are a team of engineers for a bio-materials company that has a cardiovascular systems client who wants you to develop a model that can be used to test the properties of heart valves without using real specimens."

During this project, I discovered several strengths in the way I work. One skill I demonstrated well was problem-solving. Building a functioning heart-valve model required constant adjustments, and I found myself analyzing what wasn’t working and trying multiple solutions until the valve opened and closed smoothly. For example, when the first material I chose for the leaflet wouldn’t seal properly, I tested different thicknesses of silicone until I found one that balanced flexibility and strength. I also improved in my communication skills. While working with my group, I made a conscious effort to clearly explain my ideas, such as how we could design the frame to mimic the natural motion of the valve, so everyone understood the plan before we moved forward. This helped our group stay organized and prevented us from wasting time on misunderstandings.

Even though I made progress, I still struggled with a few important skills. One challenge was time management. Because I wanted the model to be as realistic as possible, I spent too long perfecting small details, which left us slightly rushed when assembling the final prototype. For example, I spent almost an entire class period adjusting the angle of the supports instead of moving on when it was “good enough,” which put pressure on my group later. Another area I need to improve on is collaboration under stress. When the model didn’t work during our first test, I became frustrated and tried to fix the issue myself instead of working through the solution with my partners. In the future, I plan to break tasks into smaller steps with time limits so I stay on track, and I want to be more intentional about sharing responsibilities, especially when things aren’t going smoothly. Prioritizing teamwork and pacing myself better will help me contribute more effectively to future projects.