Heart Valve Model

Our task:

Each group was given the task of selecting materials that would be utilized to construct a replica of a heart valve for this project. In this phase of the study, we had to put each substance to the test and contrast its characteristics with those of actual heart valve tissues. Our group made the decision to use the flexible material we had at home. In the end, we decided to use latex gloves and balloons for our project. Calculating the stress and strain of each material was the aim of our material testing. Testing our materials allowed us to get all the information we needed to complete the equations for stress and strain.

This lab report details every step of our materials testing process, including why we selected the materials we did, how we tested our materials, and why we tested them. What substances have Young's moduli that are comparable to those of the human heart's native valves was our main concern. As well as our finished heart model, how we built it, and everything else we did for this project.

Evidence of work

Including our lab write up, material testing data, and sketches from the beginning to the end of this project.

Content:

Aortic Heart Valve: the aortic valve lets blood from the left ventricle be pumped up (ejected) into the aorta but prevents blood once it is in the aorta from returning to the heart

Force: a push or pull upon an object resulting from the object's interaction with another object

Young's Modulus: a measure of elasticity, equal to the ratio of the stress acting on a substance to the strain produced

Elesticity: the ability of an object or material to resume its normal shape after being stretched or compressed; stretchiness

Stress: pressure or tension exerted on a material object.

Strain: a force tending to pull or stretch something to an extreme or damaging degree.

Cross-section: a surface or shape that is or would be exposed by making a straight cut through something, especially at right angles to an axis.

Heart Valve Leaflet: strong, thin flaps of tissue; open to let blood move forward through the heart during half of the heartbeat, close to keep blood from flowing backward during the other half of the heartbeat

Cardiovascular system: Part of the blood circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate.

Left Ventricle: The left ventricle is the heart's main pumping chamber.

Right Ventricle: The right ventricle pumps blood low in oxygen to the lungs. In the lungs, the blood then gets a "refill" of oxygen.

Pulmonary Valve: One of four valves that control blood flow in the heart. It's between the lower right heart chamber (right ventricle) and the artery that delivers blood to the lungs (pulmonary artery).